From 4f72bc4be91866c987b56b6ecbeab05f2d2beb34 Mon Sep 17 00:00:00 2001
From: Christoffer Lerno <christoffer@aegik.com>
Date: Sun, 23 Feb 2025 13:53:04 +0100
Subject: [PATCH] Fixes to lib7, added parallel test structure.

---
 {lib2 => lib7}/std/ascii.c3                   |    0
 {lib2 => lib7}/std/atomic.c3                  |    0
 {lib2 => lib7}/std/atomic_nolibc.c3           |    0
 {lib2 => lib7}/std/bits.c3                    |    0
 {lib2 => lib7}/std/collections/anylist.c3     |    0
 {lib2 => lib7}/std/collections/bitset.c3      |    0
 .../std/collections/elastic_array.c3          |   20 +-
 {lib2 => lib7}/std/collections/enummap.c3     |    0
 {lib2 => lib7}/std/collections/enumset.c3     |    0
 {lib2 => lib7}/std/collections/hashmap.c3     |    0
 {lib2 => lib7}/std/collections/linkedlist.c3  |    0
 {lib2 => lib7}/std/collections/list.c3        |    0
 {lib2 => lib7}/std/collections/list_common.c3 |    0
 {lib2 => lib7}/std/collections/maybe.c3       |    0
 {lib2 => lib7}/std/collections/object.c3      |    0
 .../std/collections/priorityqueue.c3          |    8 +-
 {lib2 => lib7}/std/collections/range.c3       |    0
 {lib2 => lib7}/std/collections/ringbuffer.c3  |    0
 {lib2 => lib7}/std/collections/tuple.c3       |    0
 {lib2 => lib7}/std/compression/qoi.c3         |    0
 .../std/core/allocators/arena_allocator.c3    |    0
 .../std/core/allocators/dynamic_arena.c3      |    0
 .../std/core/allocators/heap_allocator.c3     |    0
 .../std/core/allocators/libc_allocator.c3     |    0
 .../std/core/allocators/on_stack_allocator.c3 |    0
 .../std/core/allocators/temp_allocator.c3     |    0
 .../std/core/allocators/tracking_allocator.c3 |    0
 {lib2 => lib7}/std/core/array.c3              |    0
 {lib2 => lib7}/std/core/bitorder.c3           |    0
 {lib2 => lib7}/std/core/builtin.c3            |   31 +-
 {lib2 => lib7}/std/core/builtin_comparison.c3 |    0
 {lib2 => lib7}/std/core/cinterop.c3           |    0
 {lib2 => lib7}/std/core/conv.c3               |    0
 {lib2 => lib7}/std/core/dstring.c3            |    0
 {lib2 => lib7}/std/core/env.c3                |    0
 {lib2 => lib7}/std/core/mem.c3                |    0
 {lib2 => lib7}/std/core/mem_allocator.c3      |    0
 {lib2 => lib7}/std/core/os/wasm_memory.c3     |    0
 {lib2 => lib7}/std/core/private/cpu_detect.c3 |    0
 .../std/core/private/macho_runtime.c3         |    0
 {lib2 => lib7}/std/core/private/main_stub.c3  |    0
 {lib2 => lib7}/std/core/runtime.c3            |    0
 {lib2 => lib7}/std/core/runtime_benchmark.c3  |    0
 {lib2 => lib7}/std/core/runtime_test.c3       |    0
 {lib2 => lib7}/std/core/sanitizer/asan.c3     |    0
 .../std/core/sanitizer/sanitizer.c3           |    0
 {lib2 => lib7}/std/core/sanitizer/tsan.c3     |    0
 {lib2 => lib7}/std/core/string.c3             |    0
 {lib2 => lib7}/std/core/string_iterator.c3    |    0
 {lib2 => lib7}/std/core/string_to_real.c3     |    0
 {lib2 => lib7}/std/core/test.c3               |    0
 {lib2 => lib7}/std/core/types.c3              |    0
 {lib2 => lib7}/std/core/values.c3             |    0
 {lib2 => lib7}/std/crypto/crypto.c3           |    0
 {lib2 => lib7}/std/crypto/dh.c3               |    0
 {lib2 => lib7}/std/crypto/rc4.c3              |    0
 {lib2 => lib7}/std/encoding/base32.c3         |    0
 {lib2 => lib7}/std/encoding/base64.c3         |    0
 {lib2 => lib7}/std/encoding/csv.c3            |    0
 {lib2 => lib7}/std/encoding/encoding.c3       |    0
 {lib2 => lib7}/std/encoding/hex.c3            |    0
 {lib2 => lib7}/std/encoding/json.c3           |    0
 .../std/experimental/FrameScheduler.c3        |    0
 {lib2 => lib7}/std/hash/adler32.c3            |    0
 {lib2 => lib7}/std/hash/crc32.c3              |    0
 {lib2 => lib7}/std/hash/crc64.c3              |    0
 {lib2 => lib7}/std/hash/fnv32a.c3             |    0
 {lib2 => lib7}/std/hash/fnv64a.c3             |    0
 {lib2 => lib7}/std/hash/hmac.c3               |    0
 {lib2 => lib7}/std/hash/md5.c3                |    0
 {lib2 => lib7}/std/hash/sha1.c3               |    0
 {lib2 => lib7}/std/hash/sha256.c3             |    0
 {lib2 => lib7}/std/io/bits.c3                 |    0
 {lib2 => lib7}/std/io/file.c3                 |    0
 {lib2 => lib7}/std/io/formatter.c3            |    0
 {lib2 => lib7}/std/io/formatter_private.c3    |    0
 {lib2 => lib7}/std/io/io.c3                   |    0
 {lib2 => lib7}/std/io/os/chdir.c3             |    0
 {lib2 => lib7}/std/io/os/file_libc.c3         |    0
 {lib2 => lib7}/std/io/os/file_nolibc.c3       |    0
 {lib2 => lib7}/std/io/os/fileinfo.c3          |    0
 {lib2 => lib7}/std/io/os/getcwd.c3            |    0
 {lib2 => lib7}/std/io/os/ls.c3                |    2 +-
 {lib2 => lib7}/std/io/os/mkdir.c3             |    0
 {lib2 => lib7}/std/io/os/rmdir.c3             |    0
 {lib2 => lib7}/std/io/os/rmtree.c3            |    0
 {lib2 => lib7}/std/io/os/temp_directory.c3    |    0
 {lib2 => lib7}/std/io/path.c3                 |    0
 {lib2 => lib7}/std/io/stream.c3               |    0
 {lib2 => lib7}/std/io/stream/buffer.c3        |    0
 {lib2 => lib7}/std/io/stream/bytebuffer.c3    |    0
 {lib2 => lib7}/std/io/stream/bytereader.c3    |    0
 {lib2 => lib7}/std/io/stream/bytewriter.c3    |    0
 {lib2 => lib7}/std/io/stream/limitreader.c3   |    0
 {lib2 => lib7}/std/io/stream/multireader.c3   |    0
 {lib2 => lib7}/std/io/stream/multiwriter.c3   |    0
 {lib2 => lib7}/std/io/stream/scanner.c3       |    0
 {lib2 => lib7}/std/io/stream/teereader.c3     |    0
 {lib2 => lib7}/std/libc/libc.c3               |    0
 {lib2 => lib7}/std/libc/libc_extra.c3         |    0
 {lib2 => lib7}/std/libc/os/darwin.c3          |    0
 {lib2 => lib7}/std/libc/os/errno.c3           |    0
 {lib2 => lib7}/std/libc/os/freebsd.c3         |    0
 {lib2 => lib7}/std/libc/os/linux.c3           |    0
 {lib2 => lib7}/std/libc/os/posix.c3           |    0
 {lib2 => lib7}/std/libc/os/win32.c3           |    0
 {lib2 => lib7}/std/libc/termios.c3            |    0
 {lib2 => lib7}/std/math/bigint.c3             |    0
 {lib2 => lib7}/std/math/math.c3               |    0
 {lib2 => lib7}/std/math/math_builtin.c3       |    0
 {lib2 => lib7}/std/math/math_complex.c3       |    0
 {lib2 => lib7}/std/math/math_easings.c3       |    0
 {lib2 => lib7}/std/math/math_i128.c3          |    0
 {lib2 => lib7}/std/math/math_libc.c3          |    0
 {lib2 => lib7}/std/math/math_matrix.c3        |    0
 {lib2 => lib7}/std/math/math_nolibc/__cos.c3  |    0
 .../std/math/math_nolibc/__cosdf.c3           |    0
 {lib2 => lib7}/std/math/math_nolibc/__fmod.c3 |    0
 {lib2 => lib7}/std/math/math_nolibc/__sin.c3  |    0
 .../std/math/math_nolibc/__sindf.c3           |    0
 {lib2 => lib7}/std/math/math_nolibc/__tan.c3  |    0
 .../std/math/math_nolibc/__tandf.c3           |    0
 {lib2 => lib7}/std/math/math_nolibc/acos.c3   |    0
 {lib2 => lib7}/std/math/math_nolibc/asin.c3   |    0
 {lib2 => lib7}/std/math/math_nolibc/atan.c3   |    0
 {lib2 => lib7}/std/math/math_nolibc/atanh.c3  |    0
 {lib2 => lib7}/std/math/math_nolibc/ceil.c3   |    0
 {lib2 => lib7}/std/math/math_nolibc/cos.c3    |    0
 {lib2 => lib7}/std/math/math_nolibc/exp.c3    |    0
 {lib2 => lib7}/std/math/math_nolibc/exp2.c3   |    0
 {lib2 => lib7}/std/math/math_nolibc/fabs.c3   |    0
 {lib2 => lib7}/std/math/math_nolibc/floor.c3  |    0
 {lib2 => lib7}/std/math/math_nolibc/frexp.c3  |    0
 {lib2 => lib7}/std/math/math_nolibc/ldexp.c3  |    0
 {lib2 => lib7}/std/math/math_nolibc/log.c3    |    0
 {lib2 => lib7}/std/math/math_nolibc/log1p.c3  |    0
 .../std/math/math_nolibc/math_nolibc.c3       |    0
 {lib2 => lib7}/std/math/math_nolibc/pow.c3    |    0
 {lib2 => lib7}/std/math/math_nolibc/rempi.c3  |    0
 {lib2 => lib7}/std/math/math_nolibc/round.c3  |    0
 {lib2 => lib7}/std/math/math_nolibc/scalbn.c3 |    0
 {lib2 => lib7}/std/math/math_nolibc/sin.c3    |    0
 {lib2 => lib7}/std/math/math_nolibc/sincos.c3 |    0
 {lib2 => lib7}/std/math/math_nolibc/tan.c3    |    0
 {lib2 => lib7}/std/math/math_nolibc/trig.c3   |    0
 {lib2 => lib7}/std/math/math_nolibc/trunc.c3  |    0
 {lib2 => lib7}/std/math/math_quaternion.c3    |    0
 {lib2 => lib7}/std/math/math_random.c3        |    0
 {lib2 => lib7}/std/math/math_vector.c3        |    0
 {lib2 => lib7}/std/math/random/math.lcg.c3    |    0
 {lib2 => lib7}/std/math/random/math.mcg.c3    |    0
 {lib2 => lib7}/std/math/random/math.msws.c3   |    0
 {lib2 => lib7}/std/math/random/math.pcg.c3    |    0
 {lib2 => lib7}/std/math/random/math.seeder.c3 |    0
 {lib2 => lib7}/std/math/random/math.sfc.c3    |    0
 .../std/math/random/math.simple_random.c3     |    0
 {lib2 => lib7}/std/math/uuid.c3               |    0
 {lib2 => lib7}/std/net/http.c3                |    0
 {lib2 => lib7}/std/net/inetaddr.c3            |    0
 {lib2 => lib7}/std/net/net.c3                 |    0
 {lib2 => lib7}/std/net/os/common.c3           |    0
 {lib2 => lib7}/std/net/os/darwin.c3           |    0
 {lib2 => lib7}/std/net/os/linux.c3            |    0
 {lib2 => lib7}/std/net/os/posix.c3            |    0
 {lib2 => lib7}/std/net/os/win32.c3            |    0
 {lib2 => lib7}/std/net/socket.c3              |    0
 {lib2 => lib7}/std/net/socket_private.c3      |    0
 {lib2 => lib7}/std/net/tcp.c3                 |    0
 {lib2 => lib7}/std/net/udp.c3                 |    0
 {lib2 => lib7}/std/net/url.c3                 |    0
 {lib2 => lib7}/std/net/url_encoding.c3        |    0
 {lib2 => lib7}/std/os/backtrace.c3            |    4 +-
 {lib2 => lib7}/std/os/cpu.c3                  |    0
 {lib2 => lib7}/std/os/env.c3                  |    0
 {lib2 => lib7}/std/os/linux/heap.c3           |    0
 {lib2 => lib7}/std/os/linux/linux.c3          |   26 +-
 {lib2 => lib7}/std/os/macos/cf_allocator.c3   |    0
 {lib2 => lib7}/std/os/macos/cf_array.c3       |    0
 {lib2 => lib7}/std/os/macos/cocoa.c3          |    0
 .../std/os/macos/core_foundation.c3           |    0
 {lib2 => lib7}/std/os/macos/darwin.c3         |    0
 {lib2 => lib7}/std/os/macos/heap.c3           |    0
 {lib2 => lib7}/std/os/macos/objc.c3           |    0
 {lib2 => lib7}/std/os/posix/files.c3          |    0
 {lib2 => lib7}/std/os/posix/general.c3        |    0
 {lib2 => lib7}/std/os/posix/heap.c3           |    0
 {lib2 => lib7}/std/os/posix/process.c3        |    0
 {lib2 => lib7}/std/os/posix/threads.c3        |    0
 {lib2 => lib7}/std/os/subprocess.c3           |    0
 {lib2 => lib7}/std/os/win32/files.c3          |    0
 {lib2 => lib7}/std/os/win32/gdi.c3            |    0
 {lib2 => lib7}/std/os/win32/general.c3        |    0
 {lib2 => lib7}/std/os/win32/heap.c3           |    0
 {lib2 => lib7}/std/os/win32/process.c3        |   12 +-
 {lib2 => lib7}/std/os/win32/types.c3          |    0
 {lib2 => lib7}/std/os/win32/wincon.c3         |    0
 {lib2 => lib7}/std/os/win32/windef.c3         |    0
 {lib2 => lib7}/std/os/win32/winuser.c3        |    0
 {lib2 => lib7}/std/os/win32/ws2def.c3         |    0
 {lib2 => lib7}/std/os/win32/wsa.c3            |    0
 {lib2 => lib7}/std/sort/binarysearch.c3       |    0
 {lib2 => lib7}/std/sort/countingsort.c3       |    0
 {lib2 => lib7}/std/sort/insertionsort.c3      |    0
 {lib2 => lib7}/std/sort/quicksort.c3          |    0
 {lib2 => lib7}/std/sort/sort.c3               |    0
 {lib2 => lib7}/std/sort/sorted.c3             |    0
 {lib2 => lib7}/std/text/i18n.c3               |    0
 .../std/threads/buffered_channel.c3           |    0
 .../std/threads/event/event_thread.c3         |    0
 {lib2 => lib7}/std/threads/fixed_pool.c3      |    0
 {lib2 => lib7}/std/threads/os/cpu.c3          |    0
 {lib2 => lib7}/std/threads/os/thread_none.c3  |    0
 {lib2 => lib7}/std/threads/os/thread_posix.c3 |    0
 {lib2 => lib7}/std/threads/os/thread_win32.c3 |    0
 {lib2 => lib7}/std/threads/pool.c3            |    0
 {lib2 => lib7}/std/threads/thread.c3          |    0
 .../std/threads/unbuffered_channel.c3         |    0
 {lib2 => lib7}/std/time/clock.c3              |    0
 {lib2 => lib7}/std/time/datetime.c3           |    0
 {lib2 => lib7}/std/time/format.c3             |    0
 {lib2 => lib7}/std/time/os/time_darwin.c3     |    0
 {lib2 => lib7}/std/time/os/time_posix.c3      |    0
 {lib2 => lib7}/std/time/os/time_win32.c3      |    0
 {lib2 => lib7}/std/time/time.c3               |    0
 src/build/build_options.c                     |    2 +-
 test/src/test_suite_runner.c3                 |   39 +-
 test/test_suite7/abi/aarch64_args.c3t         |   29 +
 test/test_suite7/abi/aarch64_hfa_args.c3t     |   32 +
 .../abi/aarch_ret_small_struct.c3t            |   45 +
 test/test_suite7/abi/avx512fp16-abi.c3t       |  166 ++
 test/test_suite7/abi/darwin64_avx.c3t         |  264 ++
 test/test_suite7/abi/darwin64_avx512.c3t      |  133 +
 test/test_suite7/abi/darwin64_sret.c3t        |   19 +
 test/test_suite7/abi/darwin64_sse.c3t         |   56 +
 test/test_suite7/abi/darwin_arg.c3t           |   25 +
 .../abi/darwin_return_boolarray.c3t           |   18 +
 test/test_suite7/abi/darwinx64_1.c3t          |   51 +
 test/test_suite7/abi/darwinx64_2.c3t          |  180 ++
 test/test_suite7/abi/linking_extern.c3t       |   24 +
 test/test_suite7/abi/literal_load.c3t         |   30 +
 test/test_suite7/abi/literal_load_aarch64.c3t |   34 +
 test/test_suite7/abi/literal_load_mingw.c3t   |   31 +
 test/test_suite7/abi/macho_section.c3t        |   15 +
 .../abi/macho_section_attributes.c3           |    8 +
 test/test_suite7/abi/pass_large_aarch.c3t     |   32 +
 test/test_suite7/abi/riscv32-ilp32-abi.c3t    |   94 +
 .../abi/riscv32-ilp32-ilp32f-abi-1.c3t        |   91 +
 .../abi/riscv32-ilp32-ilp32f-abi-2.c3t        |   57 +
 .../abi/riscv32-ilp32-ilp32f-ilp32d-abi-1.c3t |  526 ++++
 .../abi/riscv32-ilp32-ilp32f-ilp32d-abi-2.c3t |  518 ++++
 .../abi/riscv32-ilp32-ilp32f-ilp32d-abi-3.c3t |  527 ++++
 test/test_suite7/abi/riscv32-ilp32d-abi.c3t   |  505 ++++
 test/test_suite7/abi/riscv32-ilp32f-abi.c3t   |   89 +
 .../abi/riscv32-ilp32f-ilp32d-abi-1.c3t       |  200 ++
 .../abi/riscv32-ilp32f-ilp32d-abi-2.c3t       |  430 ++++
 test/test_suite7/abi/riscv64-lp64-abi.c3t     |   45 +
 .../abi/riscv64-lp64-lp64f-abi-1.c3t          |   51 +
 .../abi/riscv64-lp64-lp64f-abi-2.c3t          |   52 +
 .../abi/riscv64-lp64-lp64f-lp64d-abi-1.c3t    |  206 ++
 .../abi/riscv64-lp64-lp64f-lp64d-abi-2.c3t    |  207 ++
 .../abi/riscv64-lp64-lp64f-lp64d-abi-3.c3t    |  207 ++
 test/test_suite7/abi/riscv64-lp64d-abi.c3t    |  451 ++++
 .../abi/riscv64-lp64f-lp64d-abi-1.c3t         |  184 ++
 .../abi/riscv64-lp64f-lp64d-abi-2.c3t         |  415 +++
 test/test_suite7/abi/small_struct_x64.c3t     |   66 +
 test/test_suite7/abi/sysv_abi_avx.c3t         |   42 +
 test/test_suite7/abi/sysv_abi_noavx.c3t       |   41 +
 test/test_suite7/abi/sysv_direct_coerce.c3t   |   34 +
 test/test_suite7/abi/test_sret.c3t            |   32 +
 test/test_suite7/abi/union_x64.c3t            |   35 +
 test/test_suite7/abi/vec2_aarch64.c3t         |   95 +
 test/test_suite7/abi/vec2_wasm.c3t            |   85 +
 test/test_suite7/abi/vec2_x64.c3t             |   94 +
 test/test_suite7/abi/wasm_extern.c3t          |   17 +
 test/test_suite7/abi/x64alignarray.c3t        |   26 +
 test/test_suite7/any/any_in_any.c3t           |   37 +
 .../test_suite7/any/casting_voidptr_to_any.c3 |   26 +
 test/test_suite7/any/generic_interface.c3     |   12 +
 test/test_suite7/any/interface_no_fn.c3       |    4 +
 .../any/interface_no_method_body_1536.c3      |    7 +
 test/test_suite7/any/interface_ptr.c3         |    8 +
 test/test_suite7/any/variant_assign.c3t       |  406 +++
 test/test_suite7/any/variant_switch.c3t       |  165 ++
 test/test_suite7/any/variant_test.c3t         |  355 +++
 .../test_suite7/arrays/array_bounds_check.c3t |   47 +
 test/test_suite7/arrays/array_casts.c3t       |   31 +
 test/test_suite7/arrays/array_comparison.c3t  |  248 ++
 .../test_suite7/arrays/array_comparison_2.c3t |   86 +
 test/test_suite7/arrays/array_indexing.c3     |   11 +
 .../test_suite7/arrays/array_invalid_casts.c3 |   12 +
 test/test_suite7/arrays/array_literal.c3t     |   28 +
 test/test_suite7/arrays/array_struct.c3t      |   13 +
 .../arrays/complex_array_const.c3t            |   22 +
 .../arrays/complex_inferred_array.c3t         |   17 +
 .../arrays/global_array_non_const.c3          |   17 +
 test/test_suite7/arrays/global_init.c3t       |   61 +
 .../arrays/global_init_array_out_of_range.c3  |    2 +
 test/test_suite7/arrays/index_from_back.c3t   |   54 +
 test/test_suite7/arrays/index_into_global.c3t |   32 +
 test/test_suite7/arrays/inferred_array_err.c3 |    7 +
 .../test_suite7/arrays/inferred_array_err2.c3 |    5 +
 .../arrays/inferred_array_optional.c3t        |   91 +
 test/test_suite7/arrays/inferred_subarray.c3  |    5 +
 test/test_suite7/arrays/negative_array.c3     |    5 +
 test/test_suite7/arrays/slice.c3              |    7 +
 test/test_suite7/arrays/slice_array.c3        |    6 +
 test/test_suite7/asm/asm_bit_rv.c3t           |   20 +
 test/test_suite7/asm/asm_imm_err_rv.c3        |   58 +
 test/test_suite7/asm/asm_intr_rv.c3t          |   21 +
 test/test_suite7/asm/asm_jump_rv.c3t          |   30 +
 test/test_suite7/asm/asm_load_rv.c3t          |   21 +
 test/test_suite7/asm/asm_load_rv64.c3t        |   15 +
 test/test_suite7/asm/asm_math_rv.c3t          |   19 +
 test/test_suite7/asm/asm_ops_x64_1.c3t        |   44 +
 test/test_suite7/asm/asm_ops_x64_2.c3t        |   30 +
 test/test_suite7/asm/asm_regression.c3t       |   50 +
 test/test_suite7/asm/asm_set_rv.c3t           |   18 +
 test/test_suite7/asm/asm_shift_rv.c3t         |   19 +
 test/test_suite7/asm/asm_store_rv.c3t         |   17 +
 test/test_suite7/asm/naked.c3t                |   19 +
 test/test_suite7/asm/sideeffect.c3t           |   21 +
 test/test_suite7/asm/syscall.c3t              |   17 +
 test/test_suite7/assert/assert_variants.c3t   |   62 +
 test/test_suite7/assert/assert_with_void.c3   |   42 +
 test/test_suite7/assert/assertf.c3t           |   51 +
 .../global_static_assert_not_constant.c3      |    3 +
 .../local_static_assert_not_constant.c3       |   20 +
 test/test_suite7/assert/static_assert.c3      |    8 +
 test/test_suite7/assert/unreachable.c3t       |   31 +
 .../assert/unreachable_in_macro.c3t           |   99 +
 .../assignment/alignment_index.c3t            |   24 +
 test/test_suite7/assignment/int_assign.c3t    |   70 +
 test/test_suite7/assignment/var_variable.c3   |   39 +
 test/test_suite7/attributes/attr_link_err.c3  |   22 +
 .../attributes/attr_not_imported.c3           |    7 +
 .../attributes/attribute_params.c3            |    7 +
 test/test_suite7/attributes/attribute_path.c3 |    4 +
 .../attributes/attribute_visibility.c3t       |   12 +
 .../attributes/attributes_repeat_param.c3t    |   26 +
 .../attributes/call_attribute_error_eos.c3    |    5 +
 .../attributes/recursive_attributes.c3        |   17 +
 .../attributes/user_defined_attributes.c3t    |   59 +
 test/test_suite7/attributes/wasm_import.c3t   |    8 +
 test/test_suite7/attributes/wasm_module.c3    |    5 +
 .../bitstruct/address_of_bitstruct.c3         |   15 +
 .../bitstruct/anon_bitstruct_name_overlap.c3  |   24 +
 .../bitstruct/array_with_boolean.c3t          |   69 +
 .../bitstruct/bistruct_cast_wrong_size.c3     |   14 +
 .../test_suite7/bitstruct/bitfield_access.c3t |  173 ++
 .../bitstruct/bitstruct_access_signed.c3t     |   88 +
 .../test_suite7/bitstruct/bitstruct_align.c3t |   40 +
 .../bitstruct/bitstruct_anon_in_struct_ok.c3t |  119 +
 .../bitstruct/bitstruct_arrays.c3t            | 1069 ++++++++
 .../bitstruct/bitstruct_arrays_be.c3t         |  138 +
 test/test_suite7/bitstruct/bitstruct_be.c3t   |  348 +++
 test/test_suite7/bitstruct/bitstruct_bool.c3t |   67 +
 .../bitstruct/bitstruct_cast_and_back.c3      |   15 +
 .../bitstruct/bitstruct_cast_const_init.c3t   |   20 +
 .../bitstruct/bitstruct_direct_in_struct.c3t  |   52 +
 .../bitstruct/bitstruct_general.c3            |   46 +
 .../bitstruct/bitstruct_in_subarray.c3t       |   26 +
 test/test_suite7/bitstruct/bitstruct_init.c3  |  104 +
 .../bitstruct/bitstruct_init_bool.c3t         |   22 +
 .../bitstruct/bitstruct_initializer.c3t       |  461 ++++
 .../bitstruct/bitstruct_intcontainer.c3t      |  105 +
 test/test_suite7/bitstruct/bitstruct_ops.c3t  |  276 ++
 .../bitstruct/bitstruct_overlap.c3            |   47 +
 .../test_suite7/bitstruct/bitstruct_simple.c3 |   18 +
 .../bitstruct/bitstruct_simple_err_decl.c3    |   11 +
 .../bitstruct/bitstruct_single_error.c3       |   19 +
 .../bitstruct/bitstruct_to_int.c3t            |  108 +
 .../designated_initializer_with_bitstruct.c3t |  121 +
 .../bitstruct/embedded_bitstruct.c3t          |   70 +
 .../invalid_bitstruct_member_types.c3         |   26 +
 .../invalid_bitstruct_name_other_ident.c3     |   20 +
 .../bitstruct/invalid_bitstruct_type.c3       |    7 +
 .../bitstruct/invalid_empty_struct_union.c3   |    7 +
 .../bitstruct/missing_bitstruct_type.c3       |    3 +
 .../test_suite7/bitstruct/param_bitstruct.c3t |   24 +
 .../builtins/builtin_vector_abs.c3t           |   18 +
 .../builtins/builtin_vector_min_max.c3t       |   24 +
 .../builtins/builtin_with_optional.c3         |    8 +
 test/test_suite7/builtins/exacts.c3t          |   24 +
 test/test_suite7/builtins/mem.c3t             |   23 +
 test/test_suite7/builtins/overflows.c3t       |   66 +
 test/test_suite7/builtins/prefetch.c3t        |   19 +
 .../builtins/reduce_arithmetics.c3t           |   43 +
 test/test_suite7/builtins/reverse_builtin.c3t |   14 +
 .../builtins/rounding_builtins.c3t            |   51 +
 test/test_suite7/builtins/sat_builtins.c3t    |   38 +
 test/test_suite7/builtins/shufflevector.c3t   |   90 +
 test/test_suite7/builtins/simple_builtins.c3t |   61 +
 test/test_suite7/builtins/trap.c3t            |   12 +
 .../test_suite7/builtins/unaligned_access.c3t |   82 +
 .../builtins/unaligned_load_store.c3t         |   54 +
 test/test_suite7/cast/cast_bitstruct_etc.c3t  |   34 +
 test/test_suite7/cast/cast_from_ptr.c3t       |   22 +
 test/test_suite7/cast/cast_narrow_alias.c3t   |   26 +
 test/test_suite7/cast/cast_ok.c3              |   11 +
 test/test_suite7/cast/cast_parse_fails.c3     |   13 +
 test/test_suite7/cast/cast_parse_fails2.c3    |    8 +
 .../test_suite7/cast/cast_ptr_vec_to_bool.c3t |   25 +
 test/test_suite7/cast/cast_rcast.c3           |   19 +
 test/test_suite7/cast/cast_slice_implicit.c3  |    7 +
 .../cast/cast_string_to_infered_array.c3      |    6 +
 test/test_suite7/cast/cast_struct.c3          |   37 +
 test/test_suite7/cast/cast_struct_fails.c3    |   35 +
 test/test_suite7/cast/cast_subarray.c3t       |   32 +
 test/test_suite7/cast/cast_to_failable.c3     |   14 +
 .../cast/cast_untyped_list_error.c3           |    6 +
 .../cast/implicit_array_ptr_conv.c3           |   12 +
 .../cast/implicit_infer_len_cast.c3t          |   45 +
 .../cast/implicit_void_ptr_deep.c3            |    7 +
 test/test_suite7/cast/inner_type_cast.c3      |   21 +
 test/test_suite7/cast/top_down_cast_fails.c3  |   29 +
 test/test_suite7/cast/top_down_casts.c3t      |   98 +
 test/test_suite7/clang/2002-01_02.c3t         |  355 +++
 test/test_suite7/clang/2002-03.c3t            |   96 +
 test/test_suite7/clang/2002-04.c3t            |  168 ++
 test/test_suite7/clang/2002-07.c3t            |  992 ++++++++
 test/test_suite7/comments/simple_comments.c3  |   15 +
 .../compile_time/add_to_ct_undefined.c3       |    6 +
 .../compile_time_access_subscript.c3t         |   92 +
 .../compile_time/compile_time_array.c3t       |   28 +
 .../compile_time/compile_time_array_bug.c3t   |   24 +
 .../compile_time/compile_time_array_ref.c3t   |   18 +
 .../compile_time/compile_time_bitops.c3t      |   18 +
 .../compile_time/compile_time_pointers.c3t    |   33 +
 .../compile_time/compile_time_ptr_ref.c3t     |   22 +
 .../compile_time/compile_time_utf32.c3        |   74 +
 .../compile_time/comptime_array_folding.c3t   |   68 +
 .../compile_time/concat_append.c3t            |   61 +
 .../concat_append_extended_and_edit.c3t       | 2215 +++++++++++++++++
 test/test_suite7/compile_time/concat_const.c3 |   22 +
 .../compile_time/concat_slice_array.c3        |   16 +
 .../compile_time/concat_slice_bytes.c3t       |   18 +
 test/test_suite7/compile_time/concat_test.c3t |  506 ++++
 .../compile_time/concat_test_cases.c3         |   25 +
 .../compile_time/concat_zero_slice.c3t        |    6 +
 test/test_suite7/compile_time/ct_and_or.c3    |    6 +
 .../test_suite7/compile_time/ct_assert_bug.c3 |   25 +
 .../compile_time/ct_builtin_time_date.c3t     |  318 +++
 .../compile_time/ct_cast_example.c3t          |   14 +
 .../compile_time/ct_declaration_in_if.c3t     |   40 +
 test/test_suite7/compile_time/ct_else_else.c3 |    8 +
 .../compile_time/ct_enum_values.c3t           |   30 +
 test/test_suite7/compile_time/ct_eval.c3t     |   22 +
 test/test_suite7/compile_time/ct_eval_sym.c3  |    5 +
 .../test_suite7/compile_time/ct_eval_wrong.c3 |   10 +
 test/test_suite7/compile_time/ct_for.c3t      |   32 +
 .../compile_time/ct_forach_with_defer.c3t     |  258 ++
 test/test_suite7/compile_time/ct_foreach.c3t  |   55 +
 test/test_suite7/compile_time/ct_func.c3t     |   29 +
 test/test_suite7/compile_time/ct_funcptr.c3t  |   42 +
 test/test_suite7/compile_time/ct_if.c3t       |    8 +
 .../compile_time/ct_if_folding.c3t            |   32 +
 .../compile_time/ct_left_hand_assign.c3t      |   23 +
 test/test_suite7/compile_time/ct_memberof.c3t |  854 +++++++
 .../compile_time/ct_ordered_error.c3t         |    4 +
 .../compile_time/ct_string_functions.c3t      |   11 +
 .../compile_time/ct_subscript_inc.c3t         |   71 +
 .../compile_time/ct_subscript_op.c3t          |   27 +
 test/test_suite7/compile_time/ct_switch.c3t   |   65 +
 .../compile_time/ct_switch_errors.c3          |   36 +
 .../compile_time/ct_switch_more_checks.c3     |   48 +
 .../compile_time/ct_switch_top_level.c3t      |   52 +
 .../compile_time/ct_switch_type_check.c3t     |   46 +
 .../compile_time/ct_switch_type_errors.c3     |   51 +
 .../compile_time/ct_through_constant.c3t      |   23 +
 .../compile_time/ct_vaexpr_assign.c3t         |   23 +
 .../compile_time/ct_value_from_access.c3t     |   40 +
 .../compile_time/cttype_reassign.c3t          |   15 +
 .../compile_time/deep_stringify.c3t           |   22 +
 .../macro_compile_time_pseudo_evaluation.c3t  |   35 +
 test/test_suite7/compile_time/mod_ct.c3t      |   17 +
 .../compile_time/mod_in_other_scope.c3        |   23 +
 .../compile_time/more_untyped_conversions.c3t |   47 +
 test/test_suite7/compile_time/not_cost.c3     |   10 +
 .../compile_time/not_yet_initialized.c3       |   17 +
 test/test_suite7/compile_time/stringify.c3t   |  109 +
 test/test_suite7/compile_time/stringify2.c3t  |   20 +
 .../compile_time/ternary_folding.c3t          |   25 +
 .../compile_time/typed_ct_vars.c3t            |   28 +
 test/test_suite7/compile_time/typefrom.c3t    |   15 +
 .../compile_time/typefrom_errors.c3t          |   13 +
 .../compile_time/typeof_example.c3t           |   52 +
 .../compile_time/typeof_from_literal.c3       |   14 +
 .../compile_time/untyped_conversions.c3t      |  133 +
 .../compile_time/untyped_with_inferred.c3     |    6 +
 .../compile_time_introspection/alignof.c3t    |   65 +
 .../compile_time_introspection/defined.c3t    |   97 +
 .../compile_time_introspection/defined2.c3    |   15 +
 .../compile_time_introspection/defined_2.c3t  |   40 +
 .../defined_builtin.c3t                       |   18 +
 .../compile_time_introspection/defined_err.c3 |   25 +
 .../defined_index.c3t                         |   29 +
 .../defined_subscript.c3                      |    7 +
 .../compile_time_introspection/nameof.c3t     |   68 +
 .../compile_time_introspection/nameof_err.c3  |   20 +
 .../compile_time_introspection/offsetof.c3t   |   50 +
 .../compile_time_introspection/paramsof.c3t   |  391 +++
 .../compile_time_introspection/parentof.c3t   |   50 +
 .../compile_time_introspection/qnameof.c3t    |   60 +
 .../recursive_tag.c3                          |   13 +
 .../compile_time_introspection/sizeof.c3t     |   66 +
 .../sizeof_errors.c3                          |   66 +
 .../compile_time_introspection/tag.c3t        |   34 +
 .../compile_time_introspection/tag_1343.c3t   |   17 +
 .../concurrency/atomic_load_store.c3t         |   46 +
 .../concurrency/atomic_load_store_debug.c3t   |  135 +
 test/test_suite7/constants/assign_to_const.c3 |    8 +
 .../constants/byte_literal_fail_base64.c3     |    1 +
 .../constants/byte_literal_fail_base64_2.c3   |    1 +
 .../constants/byte_literal_fail_base64_4.c3   |    1 +
 .../constants/byte_literal_fail_hex.c3        |    1 +
 test/test_suite7/constants/byte_literals.c3t  |   13 +
 test/test_suite7/constants/char_literals.c3t  |   24 +
 test/test_suite7/constants/const_var_copy.c3t |   30 +
 test/test_suite7/constants/constant_struct.c3 |   18 +
 test/test_suite7/constants/constants.c3t      |   40 +
 .../constants/empty_byte_literal.c3           |    8 +
 test/test_suite7/constants/float_type.c3t     |   11 +
 test/test_suite7/constants/init_order.c3t     |   23 +
 test/test_suite7/contracts/constant_out.c3    |   36 +
 .../contracts/ct_eval_of_ensure.c3            |   16 +
 test/test_suite7/contracts/ensure_unsigned.c3 |   10 +
 test/test_suite7/contracts/in_array.c3        |   12 +
 test/test_suite7/contracts/in_out.c3          |   23 +
 test/test_suite7/contracts/inout_in.c3        |   21 +
 .../contracts/macro_ensure_static.c3          |   14 +
 test/test_suite7/contracts/out_subscript.c3   |   12 +
 test/test_suite7/contracts/pure.c3            |   22 +
 test/test_suite7/contracts/pure_calls.c3      |   24 +
 .../contracts/require_contract_loc.c3         |    6 +
 test/test_suite7/contracts/simple_test.c3t    |   90 +
 test/test_suite7/debug_symbols/constants.c3t  |   36 +
 .../debug_symbols/constants_mingw.c3t         |   38 +
 test/test_suite7/debug_symbols/ct_foreach.c3t |   55 +
 .../test_suite7/debug_symbols/defer_macro.c3t |  811 ++++++
 test/test_suite7/debug_symbols/foreach.c3t    |   67 +
 .../defer/defer_and_expr_block.c3t            |   39 +
 .../defer/defer_catch_direct_error.c3t        |   29 +
 test/test_suite7/defer/defer_catch_err.c3t    |  156 ++
 test/test_suite7/defer/defer_catch_mix.c3t    |  358 +++
 test/test_suite7/defer/defer_catch_try.c3t    |  148 ++
 test/test_suite7/defer/defer_nextcase.c3t     |  182 ++
 test/test_suite7/defer/defer_single_stmt.c3   |   41 +
 test/test_suite7/defer/defer_static_var.c3t   |  175 ++
 test/test_suite7/defer/defer_try_catch.c3t    |   10 +
 test/test_suite7/defer/defer_with_catch.c3t   |   88 +
 test/test_suite7/defer/defer_with_rethrow.c3  |   15 +
 test/test_suite7/defer/defer_with_return.c3   |   11 +
 .../defer/defer_with_unwrapped.c3t            |   53 +
 test/test_suite7/define/alias_typename.c3     |    2 +
 test/test_suite7/define/aliased_consts.c3t    |   24 +
 test/test_suite7/define/common.c3             |   15 +
 test/test_suite7/define/common2.c3            |   10 +
 test/test_suite7/define/define_name_errors.c3 |    8 +
 test/test_suite7/define/forbidden_defines.c3  |    3 +
 test/test_suite7/define/test_at.c3            |   24 +
 test/test_suite7/define/test_at_alias.c3      |   16 +
 test/test_suite7/define/weak_alias_fails.c3   |   32 +
 test/test_suite7/define/weak_aliases.c3       |   32 +
 .../distinct/disntinct_add_fail.c3            |   12 +
 test/test_suite7/distinct/distinct_add.c3     |    7 +
 .../distinct/distinct_function.c3t            |   33 +
 .../distinct/distinct_function_call.c3        |   16 +
 .../distinct/distinct_inline_access.c3        |   32 +
 test/test_suite7/distinct/distinct_invalid.c3 |   12 +
 test/test_suite7/distinct/distinct_max.c3t    |    8 +
 test/test_suite7/distinct/distinct_shift.c3t  |   47 +
 test/test_suite7/distinct/distinct_slicing.c3 |   10 +
 test/test_suite7/distinct/distinct_struct.c3  |   28 +
 .../distinct/distinct_struct_array.c3         |   19 +
 test/test_suite7/distinct/distinct_sub.c3t    |   58 +
 test/test_suite7/distinct/distinct_union.c3   |   34 +
 test/test_suite7/distinct/test_errors.c3      |   11 +
 test/test_suite7/distinct/test_ops_on_int.c3  |   29 +
 .../distinct/test_ops_on_struct.c3            |   24 +
 test/test_suite7/dynamic/any_cast.c3          |   22 +
 .../dynamic/duplicate_definition.c3           |   12 +
 .../dynamic/dynamic_inherit_deep.c3t          |   18 +
 test/test_suite7/dynamic/dynamic_mismatch.c3  |   25 +
 test/test_suite7/dynamic/dynamic_tracing.c3t  |   66 +
 test/test_suite7/dynamic/inherit_linux.c3t    |  197 ++
 test/test_suite7/dynamic/inherit_macos.c3t    |  176 ++
 test/test_suite7/dynamic/inline_protocol.c3   |   35 +
 .../test_suite7/dynamic/null_and_protocol.c3t |   35 +
 .../dynamic/overlapping_function_linux.c3t    |  190 ++
 .../dynamic/overlapping_function_macos.c3t    |  174 ++
 test/test_suite7/dynamic/same_method_twice.c3 |   12 +
 test/test_suite7/embed/embed_basic.c3t        |   34 +
 .../test_suite7/enumerations/compile_time.c3t |   17 +
 .../test_suite7/enumerations/enum_add_sub.c3t |   48 +
 .../enumerations/enum_associated_value.c3t    |   61 +
 .../enum_associated_values_other.c3t          |   37 +
 test/test_suite7/enumerations/enum_cast.c3t   |   97 +
 .../enumerations/enum_cast_error.c3           |   24 +
 .../enumerations/enum_conversions.c3t         |  155 ++
 .../enumerations/enum_invalid_param.c3        |   14 +
 .../enumerations/enum_missing_comma.c3        |    5 +
 .../enumerations/enum_reflect_associated.c3t  |   51 +
 .../enumerations/enum_same_param.c3           |    9 +
 .../enumerations/enum_signed_cast_swap.c3t    |   27 +
 test/test_suite7/enumerations/enum_values.c3t |   35 +
 .../enum_with_associated_value_decl.c3        |    7 +
 .../enumerations/enum_with_const.c3t          |   55 +
 test/test_suite7/enumerations/inc_assign.c3t  |   35 +
 .../enumerations/inc_assign_fail.c3           |   20 +
 .../enumerations/inline_enum_size.c3          |   19 +
 .../test_suite7/enumerations/inline_enums.c3t |   38 +
 .../enumerations/introspection_data_error.c3t |   19 +
 test/test_suite7/enumerations/missing_type.c3 |    4 +
 .../enumerations/simple_inference.c3t         |   23 +
 .../enumerations/too_many_associated.c3       |    9 +
 test/test_suite7/errors/anyfault_void.c3t     |  108 +
 test/test_suite7/errors/bitshift_failable.c3  |    5 +
 test/test_suite7/errors/else_checks.c3t       |  119 +
 test/test_suite7/errors/else_struct.c3t       |   65 +
 test/test_suite7/errors/else_unreachable.c3t  |   39 +
 .../errors/else_unreachable_in_block.c3       |    9 +
 test/test_suite7/errors/empty_fault.c3        |    4 +
 test/test_suite7/errors/error_decl_ok.c3      |   19 +
 test/test_suite7/errors/error_else.c3t        |   22 +
 test/test_suite7/errors/error_introspect.c3t  |   72 +
 .../test_suite7/errors/error_regression_2.c3t |  835 +++++++
 .../errors/error_semantic_fails.c3            |    5 +
 test/test_suite7/errors/error_throw.c3        |   12 +
 test/test_suite7/errors/error_union.c3        |   11 +
 test/test_suite7/errors/failable_catch.c3t    |  185 ++
 test/test_suite7/errors/fault_conv.c3t        |  123 +
 .../errors/general_error_regression.c3t       |  324 +++
 .../errors/illegal_use_of_optional.c3         |   14 +
 test/test_suite7/errors/invalid_cast_ct.c3    |   16 +
 test/test_suite7/errors/lone_try.c3           |   11 +
 test/test_suite7/errors/macro_err.c3t         |   58 +
 test/test_suite7/errors/macro_err2.c3t        |   60 +
 test/test_suite7/errors/macro_err3.c3t        |   37 +
 .../test_suite7/errors/macro_recurse_twice.c3 |   13 +
 test/test_suite7/errors/missing_bang.c3       |    7 +
 test/test_suite7/errors/mixed_decl.c3         |   10 +
 .../errors/more_optional_discard.c3           |   15 +
 .../test_suite7/errors/more_optional_tests.c3 |   13 +
 test/test_suite7/errors/multiple_catch.c3t    |  287 +++
 test/test_suite7/errors/no_common.c3          |   13 +
 .../errors/optional_chained_init.c3t          |  440 ++++
 test/test_suite7/errors/optional_contracts.c3 |   35 +
 .../test_suite7/errors/optional_designated.c3 |   10 +
 .../errors/optional_discarded_func.c3         |   54 +
 .../errors/optional_discarded_macro.c3        |   54 +
 test/test_suite7/errors/optional_inits.c3t    |  100 +
 test/test_suite7/errors/optional_sizeof.c3    |   43 +
 .../errors/optional_taddr_and_access.c3t      |  118 +
 .../errors/optional_untyped_list.c3           |   30 +
 .../errors/optional_with_optional.c3t         |  295 +++
 test/test_suite7/errors/or_and_rethrow.c3t    |  474 ++++
 test/test_suite7/errors/or_err_bool.c3t       |   35 +
 test/test_suite7/errors/or_err_infer.c3t      |   96 +
 test/test_suite7/errors/precedence_err.c3     |    5 +
 test/test_suite7/errors/printing_errors.c3t   |   59 +
 test/test_suite7/errors/rethrow.c3t           |   34 +
 test/test_suite7/errors/rethrow_macro.c3      |   14 +
 test/test_suite7/errors/rethrow_mingw.c3t     |   40 +
 test/test_suite7/errors/rethrow_no_err.c3     |   17 +
 .../errors/simple_static_failable.c3t         |   24 +
 .../errors/switch_default_catch.c3            |   10 +
 .../test_suite7/errors/ternary_void_fault.c3t |   71 +
 test/test_suite7/errors/try_assign.c3t        |  154 ++
 test/test_suite7/errors/try_catch_if.c3t      |  101 +
 .../errors/try_catch_unwrapping_while_if.c3   |   97 +
 test/test_suite7/errors/try_expr.c3t          |   49 +
 .../errors/try_unwrap_using_assert.c3         |   11 +
 .../errors/try_with_assign_to_failable.c3     |    6 +
 .../errors/try_with_chained_unwrap.c3t        |   59 +
 .../errors/try_with_chained_unwrap_errors.c3  |   91 +
 test/test_suite7/errors/try_with_unwrap.c3t   |   86 +
 .../test_suite7/errors/try_with_unwrapper.c3t |  185 ++
 .../errors/try_with_weird_stuff.c3            |   16 +
 .../errors/type_optional_declaration_order.c3 |   27 +
 test/test_suite7/examples/gameoflife.c3       |   90 +
 .../expr_block_labelled_break.c3              |   10 +
 .../expression_block/expr_block_no_assign.c3  |    7 +
 .../expression_block_break.c3                 |   12 +
 .../expression_block_no_end_return.c3         |    9 +
 .../2002-02-13-ConditionalInCall.c3t          |   16 +
 .../test_suite7/expressions/addr_compiles.c3t |  138 +
 test/test_suite7/expressions/addr_of_fails.c3 |   78 +
 test/test_suite7/expressions/arithmetics.c3   |   40 +
 .../expressions/arithmetics_sema_fail.c3      |   91 +
 test/test_suite7/expressions/assign.c3        |    5 +
 .../expressions/assign_deref_opt.c3           |    9 +
 .../expressions/assign_optional.c3t           |   69 +
 .../expressions/assign_to_address.c3          |    7 +
 test/test_suite7/expressions/assignability.c3 |   39 +
 .../expressions/assignment_precedence.c3t     |   23 +
 .../expressions/bit_op_on_bool.c3t            |   14 +
 .../expressions/bool_conversions.c3t          |   34 +
 .../test_suite7/expressions/call_arg_types.c3 |   19 +
 test/test_suite7/expressions/call_inline.c3t  |   48 +
 .../expressions/casts/cast_const.c3           |    6 +
 .../casts/cast_enum_const_to_distinct.c3      |    9 +
 .../expressions/casts/cast_enum_to_various.c3 |   37 +
 .../expressions/casts/cast_expr.c3t           |   28 +
 .../expressions/casts/cast_failable.c3        |   10 +
 .../expressions/casts/cast_func_to_various.c3 |   45 +
 .../casts/cast_implicit_inline_distinct.c3    |    9 +
 .../expressions/casts/cast_to_nonscalar.c3    |    9 +
 .../expressions/casts/cast_unknown.c3         |   21 +
 .../expressions/casts/cast_vector_fail.c3     |   17 +
 .../expressions/casts/enum_plus_minus.c3t     |   72 +
 .../expressions/casts/explicit_cast.c3        |   16 +
 .../failed_distinct_float_conversions.c3      |    9 +
 .../expressions/casts/narrowing.c3            |    7 +
 .../casts/narrowing_through_casts.c3          |    9 +
 .../casts/struct_cast_and_distinct.c3         |   32 +
 .../expressions/casts/void_casting.c3t        |   62 +
 .../expressions/chained_conditional.c3t       |   70 +
 .../expressions/chained_ternary.c3t           |  220 ++
 ...eck_implict_conversion_signed_unsigned.c3t |   23 +
 .../expressions/deref_access_null.c3t         |   37 +
 .../expressions/deref_const_string.c3t        |   29 +
 test/test_suite7/expressions/elvis.c3t        |   81 +
 test/test_suite7/expressions/enum_ct_sub.c3t  |   20 +
 .../expressions/fail_index_usize.c3           |    5 +
 test/test_suite7/expressions/fmuladd.c3t      |   82 +
 test/test_suite7/expressions/fmuladd_err.c3t  |   71 +
 test/test_suite7/expressions/folding_ptr.c3t  |   32 +
 test/test_suite7/expressions/incdec.c3t       |   45 +
 .../expressions/incdec_overload.c3t           |  179 ++
 test/test_suite7/expressions/negate_int.c3    |   41 +
 .../test_suite7/expressions/negated_macro.c3t |   37 +
 .../expressions/no_valid_conversion_minus.c3  |   10 +
 .../expressions/not_in_wrong_position.c3      |    4 +
 test/test_suite7/expressions/opt_in_conv.c3   |    9 +
 .../expressions/optional_and_error.c3         |   13 +
 .../expressions/optional_ternary.c3t          |  415 +++
 .../expressions/parsed_numbers.c3t            |   14 +
 test/test_suite7/expressions/plus_int.c3      |   27 +
 .../expressions/pointer_access.c3t            |   98 +
 test/test_suite7/expressions/pointer_arith.c3 |   18 +
 .../expressions/pointer_conv_error.c3         |   18 +
 .../expressions/pointer_to_bool.c3            |    9 +
 test/test_suite7/expressions/rvalues.c3       |   16 +
 .../expressions/simple_float_sub_neg.c3t      |   18 +
 test/test_suite7/expressions/strings.c3t      |   11 +
 test/test_suite7/expressions/take_address.c3t |   30 +
 test/test_suite7/expressions/ternary_bool.c3t |  103 +
 .../test_suite7/expressions/ternary_infer.c3t |   23 +
 .../expressions/ternary_no_ident.c3           |   14 +
 test/test_suite7/expressions/ternary_void.c3t |   31 +
 .../expressions/test_ct_param_bug.c3          |    7 +
 test/test_suite7/expressions/type_support.c3t |   76 +
 .../expressions/underscore_errors.c3          |   15 +
 .../expressions/unsafe_comparisons.c3         |   51 +
 test/test_suite7/expressions/void_arg.c3      |   33 +
 test/test_suite7/floats/convert_float.c3t     |   24 +
 .../explicit_float_truncation_needed.c3       |    4 +
 .../floats/float_exceeding_size.c3            |    5 +
 test/test_suite7/floats/inf_nan.c3t           |   26 +
 test/test_suite7/floats/mod.c3t               |   14 +
 test/test_suite7/from_docs/examples_defer.c3t |  253 ++
 .../from_docs/examples_forswitch.c3t          |  714 ++++++
 .../from_docs/examples_functionpointer.c3t    |   34 +
 .../from_docs/examples_if_catch.c3t           |  163 ++
 .../from_docs/examples_macro_function.c3t     |   44 +
 test/test_suite7/from_docs/examples_struct.c3 |   46 +
 .../functions/accidental_method_1448.c3       |   11 +
 test/test_suite7/functions/after_vararg.c3    |    3 +
 test/test_suite7/functions/assorted_tests.c3t |  113 +
 .../functions/body_argument_fail.c3           |    5 +
 .../functions/c_vararg_expansion.c3t          |   37 +
 .../test_suite7/functions/call_conv_fntype.c3 |    6 +
 .../test_suite7/functions/ct_named_params.c3t |   23 +
 .../functions/default_param_fail.c3           |   11 +
 .../functions/defered_default_arguments.c3t   |   56 +
 .../functions/distinct_fn_ptr_and_lambda.c3t  |    8 +
 test/test_suite7/functions/double_return.c3   |    8 +
 test/test_suite7/functions/failable_param.c3  |    3 +
 .../functions/func_ptr_conversion_alias.c3t   |   21 +
 .../func_ptr_conversions_and_names.c3t        |  135 +
 .../functions/func_ptr_null.check.c3t         |   43 +
 .../functions/function_alias_llvm_check.c3t   |   51 +
 .../functions/function_reserved_name.c3       |    7 +
 test/test_suite7/functions/invalid_param.c3   |    1 +
 test/test_suite7/functions/macro_arguments.c3 |   12 +
 test/test_suite7/functions/macro_expr_type.c3 |    7 +
 .../functions/missing_first_paren.c3          |    3 +
 test/test_suite7/functions/missing_fn.c3      |    1 +
 test/test_suite7/functions/missing_return.c3  |    3 +
 .../functions/missing_return_lambda.c3        |    9 +
 test/test_suite7/functions/multisplat.c3t     |  112 +
 test/test_suite7/functions/naked_function.c3t |   15 +
 test/test_suite7/functions/named_arg_order.c3 |   10 +
 test/test_suite7/functions/param_doc_error.c3 |   13 +
 .../functions/param_with_comma_at_end.c3      |    6 +
 test/test_suite7/functions/pointer_escape.c3  |   24 +
 test/test_suite7/functions/raw_splat.c3t      |  146 ++
 test/test_suite7/functions/recursive_fn.c3    |    2 +
 .../functions/recursive_through_generic.c3    |   14 +
 test/test_suite7/functions/returning_void.c3t |   20 +
 test/test_suite7/functions/simple_test.c3t    |   30 +
 test/test_suite7/functions/splat.c3t          |   43 +
 test/test_suite7/functions/splat_aarch64.c3t  |   57 +
 test/test_suite7/functions/splat_empty.c3t    |   12 +
 test/test_suite7/functions/splat_init.c3t     |   40 +
 test/test_suite7/functions/splat_mingw.c3t    |   51 +
 .../functions/splat_post_order.c3t            |   12 +
 test/test_suite7/functions/splat_raw.c3       |    8 +
 test/test_suite7/functions/splat_untyped.c3t  |   39 +
 test/test_suite7/functions/static_vars.c3t    |   23 +
 .../test_suite7/functions/test_regression.c3t |  582 +++++
 .../functions/test_regression_mingw.c3t       |  650 +++++
 test/test_suite7/functions/too_many_params.c3 |   40 +
 .../functions/type_argument_live_1461.c3t     |    9 +
 .../functions/typeless_varargs.c3t            |   74 +
 test/test_suite7/functions/unsplat_named.c3   |    8 +
 test/test_suite7/functions/vaarg_raw.c3       |    8 +
 .../functions/vararg_and_named_tests.c3       |   53 +
 .../functions/vararg_argument_fails.c3        |    5 +
 test/test_suite7/functions/varargs.c3t        |   42 +
 .../functions/varargs_followed_by_named.c3t   |   94 +
 test/test_suite7/functions/void_params.c3     |    2 +
 .../generic/different_generic_def.c3          |   21 +
 .../generic/enum_in_other_module.c3t          |  104 +
 test/test_suite7/generic/enum_set_test.c3t    |   88 +
 test/test_suite7/generic/generic_builtin.c3t  |   16 +
 test/test_suite7/generic/generic_copy.c3t     |   12 +
 test/test_suite7/generic/generic_cyclic.c3    |   17 +
 test/test_suite7/generic/generic_idents.c3t   |   71 +
 .../test_suite7/generic/generic_interface.c3t |   31 +
 .../generic/generic_lambda_complex.c3t        |  249 ++
 test/test_suite7/generic/generic_local.c3     |   23 +
 test/test_suite7/generic/generic_num.c3t      |   35 +
 test/test_suite7/generic/generic_over_fn.c3t  |  207 ++
 test/test_suite7/generic/generic_parsing.c3   |   22 +
 .../test_suite7/generic/generic_recursion.c3t |   21 +
 .../generic/generic_resolution_1402.c3t       |   33 +
 test/test_suite7/generic/generic_void.c3t     |   29 +
 .../generic/generic_with_comment.c3t          |   13 +
 .../test_suite7/generic/generic_with_enum.c3t |   36 +
 .../generic/generic_without_param.c3          |    9 +
 .../generic/implicit_import_of_generic.c3     |   18 +
 .../generic/incorrect_argument_type.c3        |   11 +
 test/test_suite7/generic/nested_typedef.c3t   |   30 +
 .../test_suite7/generic/used_without_param.c3 |    8 +
 .../generic/used_without_param2.c3            |    9 +
 .../generic/used_without_param3.c3            |    7 +
 test/test_suite7/globals/ext_global_init.c3   |    1 +
 test/test_suite7/globals/extern_const.c3t     |   17 +
 test/test_suite7/globals/external_global.c3t  |   36 +
 test/test_suite7/globals/global_align.c3t     |   22 +
 test/test_suite7/globals/global_extname.c3t   |    8 +
 test/test_suite7/globals/global_init.c3       |   22 +
 test/test_suite7/globals/global_no_init.c3t   |   33 +
 test/test_suite7/globals/init_with_err.c3t    |   24 +
 test/test_suite7/globals/misplaced_const.c3   |    6 +
 test/test_suite7/globals/recursive_globals.c3 |    3 +
 test/test_suite7/globals/recursive_locals.c3  |   13 +
 .../globals/self_referencing_local.c3         |    5 +
 test/test_suite7/globals/static_global.c3     |    1 +
 .../import/access_other_module.c3t            |   23 +
 test/test_suite7/import/autoimport.c3         |   36 +
 test/test_suite7/import/import_error.c3       |    6 +
 test/test_suite7/import/import_error_multi.c3 |    1 +
 .../test_suite7/import/import_error_string.c3 |    1 +
 test/test_suite7/import/import_implicit.c3    |   17 +
 test/test_suite7/import/import_nonrecurse.c3  |    5 +
 test/test_suite7/import/import_same.c3        |   10 +
 test/test_suite7/import/import_twice.c3       |    8 +
 test/test_suite7/import/import_works.c3t      |    3 +
 .../initialize/init_non_resolved_type.c3      |    1 +
 .../initialize/initialize_bad_prio.c3         |   16 +
 .../initialize/initialize_finalize.c3t        |   67 +
 .../test_suite7/initialize/initialize_jump.c3 |    9 +
 .../initialize/initialize_parse_error.c3      |    1 +
 .../test_suite7/initialize/initialize_prio.c3 |    3 +
 .../initialize/initializer_access.c3          |   10 +
 .../initialize/initializer_var.c3t            |    7 +
 .../initializer_lists/disallowed_lists.c3     |    8 +
 test/test_suite7/initializer_lists/fasta.c3t  |  340 +++
 .../initializer_lists/general_tests.c3t       |   72 +
 .../indexing_into_complist.c3                 |    5 +
 .../initializer_lists/infer_with_init.c3t     |   20 +
 .../initializer_lists/init_any_interface.c3   |   23 +
 .../initializers_to_macros.c3                 |   11 +
 .../initializer_lists/ranges_to_dynamic.c3t   |   63 +
 .../test_suite7/initializer_lists/statics.c3t |   72 +
 .../initializer_lists/subarrays.c3t           |  256 ++
 .../initializer_lists/zero_inferred_array.c3  |    4 +
 .../initializer_lists/zero_init.c3t           |   56 +
 test/test_suite7/lambda/ct_lambda.c3t         |  138 +
 test/test_suite7/lambda/ct_lambda2.c3t        |   84 +
 test/test_suite7/lambda/lambda_checks.c3      |   14 +
 test/test_suite7/lambda/lambda_in_macro.c3t   |   45 +
 test/test_suite7/lambda/lambda_ref.c3t        |   35 +
 test/test_suite7/lambda/nested_lambda_def.c3t |   78 +
 test/test_suite7/lambda/simple_lambda.c3t     |   33 +
 test/test_suite7/lambda/var_lambda.c3         |    8 +
 test/test_suite7/lexing/expected_directive.c3 |    4 +
 .../lexing/invalid_hex_in_hexarray.c3         |    1 +
 .../lexing/invalid_hex_in_hexarray2.c3        |    1 +
 test/test_suite7/lexing/no_builtin.c3         |    2 +
 test/test_suite7/literals/bad_bitwidth.c3     |    4 +
 test/test_suite7/literals/bin_literal.c3t     |   77 +
 test/test_suite7/literals/bin_literal2.c3t    |   30 +
 test/test_suite7/literals/literal_general.c3t |   22 +
 test/test_suite7/literals/multi_unicode.c3    |    1 +
 .../literals/radix_numbers_errors.c3          |   17 +
 test/test_suite7/literals/too_small.c3        |    2 +
 test/test_suite7/macro_methods/access.c3      |   35 +
 .../macro_method_different_args.c3t           |   49 +
 .../macro_methods/macro_method_fails.c3       |   46 +
 .../macro_methods/macro_method_first_param.c3 |    4 +
 .../macro_methods_defined_twice.c3            |   32 +
 .../macro_methods/macro_methods_no_args.c3    |   17 +
 test/test_suite7/macros/hash_ident.c3         |   25 +
 test/test_suite7/macros/hash_ident_nested.c3t |   34 +
 test/test_suite7/macros/hash_initializer.c3t  |   23 +
 .../test_suite7/macros/implicit_return_opt.c3 |   19 +
 test/test_suite7/macros/macro_always_const.c3 |    9 +
 .../test_suite7/macros/macro_body_as_value.c3 |   12 +
 test/test_suite7/macros/macro_body_defer.c3t  |   87 +
 test/test_suite7/macros/macro_body_errors.c3  |    7 +
 .../macros/macro_body_missing_type.c3         |   17 +
 .../macro_body_ref_hash_constant_type.c3t     |  167 ++
 test/test_suite7/macros/macro_calls_prefix.c3 |    8 +
 .../macro_chained_return_void_optional.c3t    |    9 +
 test/test_suite7/macros/macro_common.c3t      |   31 +
 .../macros/macro_convert_literal.c3           |   12 +
 test/test_suite7/macros/macro_defer_exit.c3t  |   77 +
 test/test_suite7/macros/macro_defer_scope.c3t |   42 +
 .../macros/macro_defer_with_body.c3t          |   51 +
 .../macros/macro_failable_return_rethrow.c3t  |   58 +
 .../macros/macro_import_res_private.c3t       |   26 +
 .../macros/macro_import_resolution.c3         |   13 +
 .../macros/macro_nested_labels.c3t            |  356 +++
 .../test_suite7/macros/macro_ref_body_err1.c3 |    4 +
 .../test_suite7/macros/macro_ref_body_err2.c3 |   11 +
 test/test_suite7/macros/macro_resolution.c3   |   24 +
 test/test_suite7/macros/macro_rtype.c3        |    9 +
 test/test_suite7/macros/macro_tagof.c3t       |   11 +
 .../macros/macro_typed_varargs.c3t            |  128 +
 .../macros/macro_untyped_varargs.c3           |   25 +
 .../macros/macro_untyped_varargs_2.c3t        |  190 ++
 test/test_suite7/macros/macro_vasplat.c3t     |  459 ++++
 test/test_suite7/macros/macro_with_body.c3t   |  100 +
 .../test_suite7/macros/macro_with_body_err.c3 |   33 +
 test/test_suite7/macros/modify_ct_param.c3    |   13 +
 test/test_suite7/macros/no_body.c3            |   50 +
 test/test_suite7/macros/ref_macro_method.c3   |   26 +
 test/test_suite7/macros/ref_vector.c3t        |   53 +
 .../macros/short_trailing_body.c3t            |  122 +
 .../macros/trailing_body_const.c3t            |   31 +
 test/test_suite7/macros/trailing_body_type.c3 |   10 +
 test/test_suite7/macros/type_params.c3t       |   42 +
 test/test_suite7/macros/typed_hash_access.c3  |   11 +
 .../macros/unifying_implicit_void.c3t         |  115 +
 test/test_suite7/macros/userland_bitcast.c3t  |  331 +++
 .../macros/vasplat_function_call.c3           |   18 +
 test/test_suite7/methods/access.c3            |   37 +
 .../methods/access_private_method.c3          |    9 +
 .../methods/dynamic_method_fails.c3           |    6 +
 .../methods/enum_distinct_err_methods.c3t     |  218 ++
 .../methods/extending_with_visibility.c3      |   35 +
 .../methods/extending_with_visibility_fail.c3 |   37 +
 .../extending_with_visibility_fail_private.c3 |   37 +
 test/test_suite7/methods/extension_method.c3t |   40 +
 .../methods/extension_method_already_exist.c3 |   30 +
 .../methods/extension_method_check.c3         |   19 +
 .../methods/extension_method_generic.c3       |   31 +
 .../extension_method_in_other_modules.c3t     |   42 +
 .../method_extension_in_conditional_module.c3 |   15 +
 test/test_suite7/methods/method_from_var.c3   |    9 +
 .../methods/method_name_collision.c3          |    7 +
 .../method_ref_for_extension_method.c3        |   19 +
 .../methods/methods_defined_twice.c3          |   31 +
 .../methods/methods_with_inferred_type.c3t    |   83 +
 .../methods/operator_assign_mutate.c3t        |   77 +
 .../methods/operator_defined_twice.c3         |    9 +
 test/test_suite7/methods/operator_inc.c3t     |   52 +
 test/test_suite7/methods/operator_mismatch.c3 |   12 +
 .../test_suite7/methods/self_methods_null.c3t |   27 +
 .../methods/unsupported_operator.c3           |    3 +
 test/test_suite7/module/missing_semi.c3       |    3 +
 .../module/module_bad_path_ident.c3           |    1 +
 .../module/module_bad_path_invalid.c3         |    1 +
 .../module/module_bad_path_keyword.c3         |    1 +
 .../test_suite7/module/module_error_string.c3 |    1 +
 .../module/module_generic_mixing.c3           |    7 +
 .../module/module_section_export.c3t          |   29 +
 .../module/module_start_bad_ident.c3          |    1 +
 .../module/module_start_invalid.c3            |    1 +
 .../module/module_start_keyword.c3            |    1 +
 test/test_suite7/module/private_module.c3     |    1 +
 test/test_suite7/module/unknown_modules.c3    |    4 +
 .../overloading/construct_op_zero_args.c3     |    5 +
 .../overloading/construct_operator.c3t        |  353 +++
 .../overloading/set_not_set_overload.c3t      |   61 +
 test/test_suite7/overloading/set_overload.c3t |   24 +
 .../pointers/array_pointer_decay.c3t          |   77 +
 test/test_suite7/pointers/const_pointer.c3t   |   16 +
 test/test_suite7/pointers/const_ref.c3t       |   25 +
 test/test_suite7/pointers/pointer_index.c3t   |   77 +
 .../pointers/subarray_variant_to_ptr.c3t      |   86 +
 .../test_suite7/precedence/required_parens.c3 |   13 +
 .../regression/crash_on_right_paren_macro.c3  |    6 +
 test/test_suite7/safe/deref.c3t               |   60 +
 .../safe/detect_invalid_deref_return.c3       |   40 +
 test/test_suite7/slices/array_to_const_err.c3 |    8 +
 .../slices/array_to_const_slice.c3t           |   19 +
 test/test_suite7/slices/slice_assign.c3t      |   83 +
 test/test_suite7/slices/slice_assign2.c3t     |   48 +
 test/test_suite7/slices/slice_checks.c3t      |  128 +
 test/test_suite7/slices/slice_comparison.c3t  |  232 ++
 test/test_suite7/slices/slice_conv_byte.c3t   |   51 +
 test/test_suite7/slices/slice_init.c3t        |   37 +
 test/test_suite7/slices/slice_inline.c3t      |   34 +
 test/test_suite7/slices/slice_len_error.c3    |   21 +
 test/test_suite7/slices/slice_negative_len.c3 |   87 +
 test/test_suite7/slices/slice_offset.c3t      |   20 +
 .../slices/slice_offset_neg_end.c3t           |   20 +
 .../slices/slice_offset_neg_start.c3t         |   20 +
 test/test_suite7/slices/slice_optional.c3t    |   41 +
 .../slices/slice_optional_index.c3t           |  120 +
 test/test_suite7/slices/slice_start.c3t       |   19 +
 test/test_suite7/slices/slice_syntax.c3       |   24 +
 .../slices/slice_to_slice_assign.c3t          |  129 +
 .../slices/slice_to_slice_conv_err.c3t        |    8 +
 .../slices/slice_to_slice_vector_assign.c3t   |  130 +
 test/test_suite7/slices/sub_array_init.c3     |    7 +
 .../slices/subscript_check_1519.c3t           |   37 +
 .../slices/various_const_slicing.c3t          |  497 ++++
 test/test_suite7/statements/binary_fail.c3    |    8 +
 .../statements/call_missing_paren.c3          |    7 +
 .../statements/comparison_widening.c3t        |   43 +
 .../statements/conditional_return.c3          |   12 +
 .../statements/const_statements.c3t           |   15 +
 .../statements/custom_foreach_with_ref.c3t    |  406 +++
 .../statements/dead_statements.c3t            |   44 +
 test/test_suite7/statements/default_args.c3   |    4 +
 .../statements/default_macro_argc.c3t         |  287 +++
 test/test_suite7/statements/defer_break.c3t   |  114 +
 .../statements/defer_break_simple.c3t         |   58 +
 .../statements/defer_break_switch.c3t         |   60 +
 .../statements/defer_continue_bug.c3t         |   59 +
 .../test_suite7/statements/defer_do_while.c3t |   38 +
 test/test_suite7/statements/defer_hash.c3t    |   45 +
 .../statements/defer_if_try_copy.c3t          |   36 +
 .../test_suite7/statements/defer_in_block.c3t |   88 +
 .../test_suite7/statements/defer_in_defer.c3t |   38 +
 .../statements/defer_in_defer2.c3t            |  120 +
 .../statements/defer_in_defer3.c3t            |   46 +
 .../statements/defer_next_switch.c3t          |   59 +
 test/test_suite7/statements/defer_return.c3t  |   99 +
 test/test_suite7/statements/defer_test.c3     |    9 +
 .../statements/defer_with_loop.c3t            |  108 +
 .../statements/do_without_compound.c3         |    5 +
 .../statements/exhaustive_switch.c3t          |   39 +
 test/test_suite7/statements/fallthough_do.c3t |   80 +
 test/test_suite7/statements/for.c3            |   24 +
 test/test_suite7/statements/for_empty.c3      |    8 +
 test/test_suite7/statements/for_errors.c3     |    7 +
 .../statements/for_statement_placement.c3     |   13 +
 .../statements/for_with_extra_declarations.c3 |   17 +
 .../statements/for_with_optional.c3t          |  128 +
 test/test_suite7/statements/foreach_break.c3t |   73 +
 .../test_suite7/statements/foreach_common.c3t |  359 +++
 .../test_suite7/statements/foreach_custom.c3t |   85 +
 .../statements/foreach_custom_errors.c3       |   15 +
 .../statements/foreach_custom_macro.c3t       |   91 +
 .../statements/foreach_distinct_iterable.c3t  |   61 +
 .../foreach_distinct_pointer_1506.c3          |   14 +
 test/test_suite7/statements/foreach_errors.c3 |   54 +
 .../foreach_more_implementations.c3t          |  126 +
 .../statements/foreach_parse_error.c3         |    5 +
 .../statements/foreach_r_break.c3t            |   72 +
 .../statements/foreach_r_common.c3t           |  359 +++
 .../statements/foreach_r_custom.c3t           |   88 +
 .../statements/foreach_r_custom_errors.c3     |   15 +
 .../statements/foreach_r_custom_macro.c3t     |   77 +
 .../statements/foreach_r_errors.c3            |   54 +
 .../statements/foreach_r_parse_error.c3       |    5 +
 .../statements/foreach_r_with_error.c3        |   12 +
 .../statements/foreach_with_error.c3          |   12 +
 .../statements/foreach_wrong_index.c3         |   27 +
 test/test_suite7/statements/if_decl.c3        |    5 +
 test/test_suite7/statements/if_only_throw.c3t |   30 +
 test/test_suite7/statements/if_single.c3      |   29 +
 test/test_suite7/statements/if_tests.c3t      |   71 +
 .../statements/if_while_do_error.c3           |   34 +
 .../statements/infinite_do_while.c3t          |   40 +
 test/test_suite7/statements/label_errors.c3   |   24 +
 .../statements/labelled_continue_for.c3t      |   71 +
 .../test_suite7/statements/nextcase_const.c3t |   52 +
 .../statements/nextcase_default.c3t           |  121 +
 .../statements/nextcase_missing_case.c3       |   14 +
 .../statements/nextcase_no_switch.c3          |   11 +
 test/test_suite7/statements/ranged_switch.c3t |  229 ++
 test/test_suite7/statements/return_stmt.c3    |   11 +
 test/test_suite7/statements/return_switch.c3t |   36 +
 .../statements/return_with_other_at_end.c3    |    7 +
 test/test_suite7/statements/simple_do.c3t     |  112 +
 .../statements/switch_error_fallthrough.c3    |   11 +
 .../statements/switch_error_range.c3          |   12 +
 test/test_suite7/statements/switch_errors.c3  |  160 ++
 .../statements/various_switching.c3t          |  298 +++
 .../statements/while_statement_placement.c3   |   11 +
 .../statements/while_statement_placement2.c3  |   34 +
 test/test_suite7/statements/while_switch.c3t  |   90 +
 test/test_suite7/stdlib/ascii.c3              |   26 +
 test/test_suite7/stdlib/map_linux.c3t         |  290 +++
 test/test_suite7/stdlib/map_macos.c3t         |  268 ++
 test/test_suite7/stdlib/memcomp.c3t           |   16 +
 test/test_suite7/stdlib/minmax.c3             |    9 +
 test/test_suite7/stdlib/print_env_defines.c3  |   15 +
 test/test_suite7/stdlib/priorityqueue.c3t     |   31 +
 test/test_suite7/strings/literal_errors.c3    |   22 +
 test/test_suite7/strings/literal_hex_ok.c3    |    3 +
 .../strings/literal_to_subarray.c3t           |   24 +
 .../test_suite7/strings/multiline_strings.c3t |   18 +
 test/test_suite7/strings/string_escape.c3t    |   22 +
 test/test_suite7/strings/string_len.c3t       |    7 +
 test/test_suite7/strings/string_to_array.c3t  |   28 +
 test/test_suite7/struct/const_access_error.c3 |    6 +
 .../test_suite7/struct/const_slice_struct.c3t |   37 +
 .../struct/const_zero_init_1360.c3t           |   27 +
 test/test_suite7/struct/duplicate_member.c3   |   72 +
 .../struct/flex_array_comparison.c3           |   15 +
 .../struct/flex_array_struct_err.c3           |   31 +
 .../struct/flexible_array_resolve.c3          |   16 +
 test/test_suite7/struct/func_return_struct.c3 |   12 +
 .../struct/init_cont_struct_array_locally.c3t |  206 ++
 .../struct/initialize_inline_designated.c3t   |   31 +
 .../struct/inline_array_access.c3t            |   33 +
 test/test_suite7/struct/inner_struct_name.c3  |    5 +
 test/test_suite7/struct/member_access.c3      |   87 +
 test/test_suite7/struct/member_expr.c3        |   31 +
 .../struct/multi_member_attributes.c3t        |   22 +
 .../test_suite7/struct/nested_struct_init.c3t |   71 +
 .../struct/nested_struct_union_init.c3t       |  110 +
 test/test_suite7/struct/recursive_structs.c3  |   25 +
 test/test_suite7/struct/simple_struct.c3t     |   14 +
 test/test_suite7/struct/sret.c3t              |   26 +
 test/test_suite7/struct/struct_as_value.c3t   |   46 +
 .../struct/struct_as_value_aarch64.c3t        |   41 +
 test/test_suite7/struct/struct_bad_member.c3  |   19 +
 test/test_suite7/struct/struct_codegen.c3t    |   27 +
 .../struct/struct_codegen_empty.c3t           |   39 +
 .../test_suite7/struct/struct_codegen_fam.c3t |   30 +
 test/test_suite7/struct/struct_comma.c3       |    7 +
 .../struct/struct_const_construct_simple.c3t  |   32 +
 .../struct/struct_nopadding_compact.c3t       |  272 ++
 .../struct/struct_pack_and_align.c3t          |  101 +
 test/test_suite7/struct/struct_pack_error.c3t |   48 +
 test/test_suite7/struct/struct_params.c3      |   27 +
 test/test_suite7/struct/struct_reinit.c3t     |   40 +
 .../struct/struct_union_inner_align.c3t       |   43 +
 test/test_suite7/struct/zero_member.c3        |    7 +
 test/test_suite7/switch/bad_ranges.c3         |   22 +
 .../switch/enum_jump_switch_and_range.c3t     |  503 ++++
 test/test_suite7/switch/failable_switch.c3    |   14 +
 test/test_suite7/switch/jump_bug_nested.c3t   |  139 ++
 test/test_suite7/switch/jump_bugs.c3t         |   70 +
 test/test_suite7/switch/jump_with_inc.c3t     |   65 +
 test/test_suite7/switch/simple_jump.c3t       |  283 +++
 .../switch/switch_in_defer_macro.c3t          |  838 +++++++
 .../symbols/allow_local_shadowing.c3          |   10 +
 test/test_suite7/symbols/shadow_struct.c3     |   15 +
 test/test_suite7/symbols/various.c3           |  189 ++
 test/test_suite7/types/enum_illegal_type.c3   |    9 +
 .../types/enum_implicit_overflow.c3           |  136 +
 test/test_suite7/types/enum_inference.c3      |   43 +
 test/test_suite7/types/enum_ok.c3             |   35 +
 test/test_suite7/types/enum_param.c3          |   12 +
 test/test_suite7/types/enum_parse_errors.c3   |   22 +
 .../types/illegal_array_size_constant.c3      |   12 +
 test/test_suite7/types/non_rec_fn.c3          |   11 +
 test/test_suite7/types/recursive_array.c3     |    4 +
 test/test_suite7/types/recursive_fn.c3        |    1 +
 test/test_suite7/types/recursive_typedef.c3   |    9 +
 test/test_suite7/types/redefinition.c3        |    2 +
 test/test_suite7/types/typedefs.c3            |   11 +
 test/test_suite7/types/various.c3             |    5 +
 test/test_suite7/unicode/commenting-out.c3    |   10 +
 .../union/designated_union_zeroing.c3t        |   33 +
 .../test_suite7/union/flexible_array_union.c3 |    5 +
 .../test_suite7/union/inferred_size_vector.c3 |    4 +
 test/test_suite7/union/test_unions.c3         |   28 +
 .../test_suite7/union/union_codegen_const.c3t |   20 +
 .../test_suite7/union/union_codegen_empty.c3t |   45 +
 .../union/union_codegen_overwrite_call.c3t    |   30 +
 test/test_suite7/union/union_in_struct.c3t    |   45 +
 .../union/union_member_voidcast.c3            |   13 +
 test/test_suite7/union/union_zero.c3          |    3 +
 test/test_suite7/variables/const_in_func.c3t  |   19 +
 test/test_suite7/variables/consts.c3          |    7 +
 .../test_suite7/variables/static_in_macro.c3t |   76 +
 test/test_suite7/variables/var_init.c3t       |   26 +
 test/test_suite7/variables/var_init_multi.c3t |   28 +
 test/test_suite7/vector/gather_scatter.c3t    |   30 +
 .../test_suite7/vector/swizzle_vector_ref.c3t |   27 +
 test/test_suite7/vector/swizzling.c3          |   22 +
 test/test_suite7/vector/vector_bit.c3t        |  153 ++
 test/test_suite7/vector/vector_consts.c3t     |   43 +
 .../vector/vector_conversion_scalar.c3        |   15 +
 test/test_suite7/vector/vector_from_i1.c3t    |   31 +
 test/test_suite7/vector/vector_incdec.c3t     |  189 ++
 test/test_suite7/vector/vector_init.c3t       |   53 +
 .../vector/vector_init_regression.c3t         |  414 +++
 .../vector/vector_lowering_regression1.c3t    |   12 +
 test/test_suite7/vector/vector_ops2.c3t       |   55 +
 test/test_suite7/vector/vector_param.c3t      |   34 +
 .../vector/vector_pointer_errors.c3           |   14 +
 test/test_suite7/vector/vector_shift.c3t      |   43 +
 .../vector/vector_to_array_cast.c3t           |   39 +
 .../vector/vector_to_array_fail.c3            |   13 +
 .../vector/vector_to_vector_const_fail.c3     |    5 +
 .../visibility/ambiguous_recursive.c3         |   33 +
 test/test_suite7/visibility/ambiguous_var.c3t |   27 +
 .../visibility/export_property.c3t            |   39 +
 .../visibility/no_shared_imports.c3t          |   22 +
 test/test_suite7/visibility/not_visible.c3t   |   16 +
 test/test_suite7/visibility/private_import.c3 |   21 +
 .../test_suite7/visibility/private_import2.c3 |   27 +
 .../visibility/private_to_extern.c3t          |   21 +
 test/test_suite7/visibility/shared_module.c3t |   12 +
 .../visibility/simple_visibility.c3t          |   16 +
 test/unit/stdlib/collections/priorityqueue.c3 |    4 +-
 1228 files changed, 63192 insertions(+), 56 deletions(-)
 rename {lib2 => lib7}/std/ascii.c3 (100%)
 rename {lib2 => lib7}/std/atomic.c3 (100%)
 rename {lib2 => lib7}/std/atomic_nolibc.c3 (100%)
 rename {lib2 => lib7}/std/bits.c3 (100%)
 rename {lib2 => lib7}/std/collections/anylist.c3 (100%)
 rename {lib2 => lib7}/std/collections/bitset.c3 (100%)
 rename {lib2 => lib7}/std/collections/elastic_array.c3 (94%)
 rename {lib2 => lib7}/std/collections/enummap.c3 (100%)
 rename {lib2 => lib7}/std/collections/enumset.c3 (100%)
 rename {lib2 => lib7}/std/collections/hashmap.c3 (100%)
 rename {lib2 => lib7}/std/collections/linkedlist.c3 (100%)
 rename {lib2 => lib7}/std/collections/list.c3 (100%)
 rename {lib2 => lib7}/std/collections/list_common.c3 (100%)
 rename {lib2 => lib7}/std/collections/maybe.c3 (100%)
 rename {lib2 => lib7}/std/collections/object.c3 (100%)
 rename {lib2 => lib7}/std/collections/priorityqueue.c3 (94%)
 rename {lib2 => lib7}/std/collections/range.c3 (100%)
 rename {lib2 => lib7}/std/collections/ringbuffer.c3 (100%)
 rename {lib2 => lib7}/std/collections/tuple.c3 (100%)
 rename {lib2 => lib7}/std/compression/qoi.c3 (100%)
 rename {lib2 => lib7}/std/core/allocators/arena_allocator.c3 (100%)
 rename {lib2 => lib7}/std/core/allocators/dynamic_arena.c3 (100%)
 rename {lib2 => lib7}/std/core/allocators/heap_allocator.c3 (100%)
 rename {lib2 => lib7}/std/core/allocators/libc_allocator.c3 (100%)
 rename {lib2 => lib7}/std/core/allocators/on_stack_allocator.c3 (100%)
 rename {lib2 => lib7}/std/core/allocators/temp_allocator.c3 (100%)
 rename {lib2 => lib7}/std/core/allocators/tracking_allocator.c3 (100%)
 rename {lib2 => lib7}/std/core/array.c3 (100%)
 rename {lib2 => lib7}/std/core/bitorder.c3 (100%)
 rename {lib2 => lib7}/std/core/builtin.c3 (96%)
 rename {lib2 => lib7}/std/core/builtin_comparison.c3 (100%)
 rename {lib2 => lib7}/std/core/cinterop.c3 (100%)
 rename {lib2 => lib7}/std/core/conv.c3 (100%)
 rename {lib2 => lib7}/std/core/dstring.c3 (100%)
 rename {lib2 => lib7}/std/core/env.c3 (100%)
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 rename {lib2 => lib7}/std/core/mem_allocator.c3 (100%)
 rename {lib2 => lib7}/std/core/os/wasm_memory.c3 (100%)
 rename {lib2 => lib7}/std/core/private/cpu_detect.c3 (100%)
 rename {lib2 => lib7}/std/core/private/macho_runtime.c3 (100%)
 rename {lib2 => lib7}/std/core/private/main_stub.c3 (100%)
 rename {lib2 => lib7}/std/core/runtime.c3 (100%)
 rename {lib2 => lib7}/std/core/runtime_benchmark.c3 (100%)
 rename {lib2 => lib7}/std/core/runtime_test.c3 (100%)
 rename {lib2 => lib7}/std/core/sanitizer/asan.c3 (100%)
 rename {lib2 => lib7}/std/core/sanitizer/sanitizer.c3 (100%)
 rename {lib2 => lib7}/std/core/sanitizer/tsan.c3 (100%)
 rename {lib2 => lib7}/std/core/string.c3 (100%)
 rename {lib2 => lib7}/std/core/string_iterator.c3 (100%)
 rename {lib2 => lib7}/std/core/string_to_real.c3 (100%)
 rename {lib2 => lib7}/std/core/test.c3 (100%)
 rename {lib2 => lib7}/std/core/types.c3 (100%)
 rename {lib2 => lib7}/std/core/values.c3 (100%)
 rename {lib2 => lib7}/std/crypto/crypto.c3 (100%)
 rename {lib2 => lib7}/std/crypto/dh.c3 (100%)
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 rename {lib2 => lib7}/std/encoding/hex.c3 (100%)
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 rename {lib2 => lib7}/std/experimental/FrameScheduler.c3 (100%)
 rename {lib2 => lib7}/std/hash/adler32.c3 (100%)
 rename {lib2 => lib7}/std/hash/crc32.c3 (100%)
 rename {lib2 => lib7}/std/hash/crc64.c3 (100%)
 rename {lib2 => lib7}/std/hash/fnv32a.c3 (100%)
 rename {lib2 => lib7}/std/hash/fnv64a.c3 (100%)
 rename {lib2 => lib7}/std/hash/hmac.c3 (100%)
 rename {lib2 => lib7}/std/hash/md5.c3 (100%)
 rename {lib2 => lib7}/std/hash/sha1.c3 (100%)
 rename {lib2 => lib7}/std/hash/sha256.c3 (100%)
 rename {lib2 => lib7}/std/io/bits.c3 (100%)
 rename {lib2 => lib7}/std/io/file.c3 (100%)
 rename {lib2 => lib7}/std/io/formatter.c3 (100%)
 rename {lib2 => lib7}/std/io/formatter_private.c3 (100%)
 rename {lib2 => lib7}/std/io/io.c3 (100%)
 rename {lib2 => lib7}/std/io/os/chdir.c3 (100%)
 rename {lib2 => lib7}/std/io/os/file_libc.c3 (100%)
 rename {lib2 => lib7}/std/io/os/file_nolibc.c3 (100%)
 rename {lib2 => lib7}/std/io/os/fileinfo.c3 (100%)
 rename {lib2 => lib7}/std/io/os/getcwd.c3 (100%)
 rename {lib2 => lib7}/std/io/os/ls.c3 (97%)
 rename {lib2 => lib7}/std/io/os/mkdir.c3 (100%)
 rename {lib2 => lib7}/std/io/os/rmdir.c3 (100%)
 rename {lib2 => lib7}/std/io/os/rmtree.c3 (100%)
 rename {lib2 => lib7}/std/io/os/temp_directory.c3 (100%)
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 rename {lib2 => lib7}/std/libc/os/errno.c3 (100%)
 rename {lib2 => lib7}/std/libc/os/freebsd.c3 (100%)
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 rename {lib2 => lib7}/std/libc/os/win32.c3 (100%)
 rename {lib2 => lib7}/std/libc/termios.c3 (100%)
 rename {lib2 => lib7}/std/math/bigint.c3 (100%)
 rename {lib2 => lib7}/std/math/math.c3 (100%)
 rename {lib2 => lib7}/std/math/math_builtin.c3 (100%)
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 rename {lib2 => lib7}/std/math/math_i128.c3 (100%)
 rename {lib2 => lib7}/std/math/math_libc.c3 (100%)
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 rename {lib2 => lib7}/std/math/math_nolibc/__sin.c3 (100%)
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 rename {lib2 => lib7}/std/math/math_nolibc/__tan.c3 (100%)
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 rename {lib2 => lib7}/std/math/math_nolibc/acos.c3 (100%)
 rename {lib2 => lib7}/std/math/math_nolibc/asin.c3 (100%)
 rename {lib2 => lib7}/std/math/math_nolibc/atan.c3 (100%)
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 rename {lib2 => lib7}/std/math/math_nolibc/ceil.c3 (100%)
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 rename {lib2 => lib7}/std/math/math_nolibc/exp.c3 (100%)
 rename {lib2 => lib7}/std/math/math_nolibc/exp2.c3 (100%)
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 rename {lib2 => lib7}/std/math/math_nolibc/trig.c3 (100%)
 rename {lib2 => lib7}/std/math/math_nolibc/trunc.c3 (100%)
 rename {lib2 => lib7}/std/math/math_quaternion.c3 (100%)
 rename {lib2 => lib7}/std/math/math_random.c3 (100%)
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 rename {lib2 => lib7}/std/math/random/math.lcg.c3 (100%)
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 rename {lib2 => lib7}/std/net/os/darwin.c3 (100%)
 rename {lib2 => lib7}/std/net/os/linux.c3 (100%)
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 rename {lib2 => lib7}/std/net/os/win32.c3 (100%)
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 create mode 100644 test/test_suite7/types/enum_illegal_type.c3
 create mode 100644 test/test_suite7/types/enum_implicit_overflow.c3
 create mode 100644 test/test_suite7/types/enum_inference.c3
 create mode 100644 test/test_suite7/types/enum_ok.c3
 create mode 100644 test/test_suite7/types/enum_param.c3
 create mode 100644 test/test_suite7/types/enum_parse_errors.c3
 create mode 100644 test/test_suite7/types/illegal_array_size_constant.c3
 create mode 100644 test/test_suite7/types/non_rec_fn.c3
 create mode 100644 test/test_suite7/types/recursive_array.c3
 create mode 100644 test/test_suite7/types/recursive_fn.c3
 create mode 100644 test/test_suite7/types/recursive_typedef.c3
 create mode 100644 test/test_suite7/types/redefinition.c3
 create mode 100644 test/test_suite7/types/typedefs.c3
 create mode 100644 test/test_suite7/types/various.c3
 create mode 100644 test/test_suite7/unicode/commenting-out.c3
 create mode 100644 test/test_suite7/union/designated_union_zeroing.c3t
 create mode 100644 test/test_suite7/union/flexible_array_union.c3
 create mode 100644 test/test_suite7/union/inferred_size_vector.c3
 create mode 100644 test/test_suite7/union/test_unions.c3
 create mode 100644 test/test_suite7/union/union_codegen_const.c3t
 create mode 100644 test/test_suite7/union/union_codegen_empty.c3t
 create mode 100644 test/test_suite7/union/union_codegen_overwrite_call.c3t
 create mode 100644 test/test_suite7/union/union_in_struct.c3t
 create mode 100644 test/test_suite7/union/union_member_voidcast.c3
 create mode 100644 test/test_suite7/union/union_zero.c3
 create mode 100644 test/test_suite7/variables/const_in_func.c3t
 create mode 100644 test/test_suite7/variables/consts.c3
 create mode 100644 test/test_suite7/variables/static_in_macro.c3t
 create mode 100644 test/test_suite7/variables/var_init.c3t
 create mode 100644 test/test_suite7/variables/var_init_multi.c3t
 create mode 100644 test/test_suite7/vector/gather_scatter.c3t
 create mode 100644 test/test_suite7/vector/swizzle_vector_ref.c3t
 create mode 100644 test/test_suite7/vector/swizzling.c3
 create mode 100644 test/test_suite7/vector/vector_bit.c3t
 create mode 100644 test/test_suite7/vector/vector_consts.c3t
 create mode 100644 test/test_suite7/vector/vector_conversion_scalar.c3
 create mode 100644 test/test_suite7/vector/vector_from_i1.c3t
 create mode 100644 test/test_suite7/vector/vector_incdec.c3t
 create mode 100644 test/test_suite7/vector/vector_init.c3t
 create mode 100644 test/test_suite7/vector/vector_init_regression.c3t
 create mode 100644 test/test_suite7/vector/vector_lowering_regression1.c3t
 create mode 100644 test/test_suite7/vector/vector_ops2.c3t
 create mode 100644 test/test_suite7/vector/vector_param.c3t
 create mode 100644 test/test_suite7/vector/vector_pointer_errors.c3
 create mode 100644 test/test_suite7/vector/vector_shift.c3t
 create mode 100644 test/test_suite7/vector/vector_to_array_cast.c3t
 create mode 100644 test/test_suite7/vector/vector_to_array_fail.c3
 create mode 100644 test/test_suite7/vector/vector_to_vector_const_fail.c3
 create mode 100644 test/test_suite7/visibility/ambiguous_recursive.c3
 create mode 100644 test/test_suite7/visibility/ambiguous_var.c3t
 create mode 100644 test/test_suite7/visibility/export_property.c3t
 create mode 100644 test/test_suite7/visibility/no_shared_imports.c3t
 create mode 100644 test/test_suite7/visibility/not_visible.c3t
 create mode 100644 test/test_suite7/visibility/private_import.c3
 create mode 100644 test/test_suite7/visibility/private_import2.c3
 create mode 100644 test/test_suite7/visibility/private_to_extern.c3t
 create mode 100644 test/test_suite7/visibility/shared_module.c3t
 create mode 100644 test/test_suite7/visibility/simple_visibility.c3t

diff --git a/lib2/std/ascii.c3 b/lib7/std/ascii.c3
similarity index 100%
rename from lib2/std/ascii.c3
rename to lib7/std/ascii.c3
diff --git a/lib2/std/atomic.c3 b/lib7/std/atomic.c3
similarity index 100%
rename from lib2/std/atomic.c3
rename to lib7/std/atomic.c3
diff --git a/lib2/std/atomic_nolibc.c3 b/lib7/std/atomic_nolibc.c3
similarity index 100%
rename from lib2/std/atomic_nolibc.c3
rename to lib7/std/atomic_nolibc.c3
diff --git a/lib2/std/bits.c3 b/lib7/std/bits.c3
similarity index 100%
rename from lib2/std/bits.c3
rename to lib7/std/bits.c3
diff --git a/lib2/std/collections/anylist.c3 b/lib7/std/collections/anylist.c3
similarity index 100%
rename from lib2/std/collections/anylist.c3
rename to lib7/std/collections/anylist.c3
diff --git a/lib2/std/collections/bitset.c3 b/lib7/std/collections/bitset.c3
similarity index 100%
rename from lib2/std/collections/bitset.c3
rename to lib7/std/collections/bitset.c3
diff --git a/lib2/std/collections/elastic_array.c3 b/lib7/std/collections/elastic_array.c3
similarity index 94%
rename from lib2/std/collections/elastic_array.c3
rename to lib7/std/collections/elastic_array.c3
index a835aa68c..e2c89e6b9 100644
--- a/lib2/std/collections/elastic_array.c3
+++ b/lib7/std/collections/elastic_array.c3
@@ -160,28 +160,12 @@ fn void ElasticArray.add_array(&self, Type[] array)
 
 
 
-<*
- IMPORTANT The returned array must be freed using free_aligned.
-*>
-fn Type[] ElasticArray.to_new_aligned_array(&self)
-{
-	return list_common::list_to_new_aligned_array(Type, self, allocator::heap());
-}
-
 <*
  IMPORTANT The returned array must be freed using free_aligned.
 *>
 fn Type[] ElasticArray.to_aligned_array(&self, Allocator allocator)
 {
-	return list_common::list_to_new_aligned_array(Type, self, allocator);
-}
-
-<*
- @require !type_is_overaligned() : "This function is not available on overaligned types"
-*>
-macro Type[] ElasticArray.to_new_array(&self)
-{
-	return list_common::list_to_array(Type, self, allocator::heap());
+	return list_common::list_to_aligned_array(Type, self, allocator);
 }
 
 <*
@@ -189,7 +173,7 @@ macro Type[] ElasticArray.to_new_array(&self)
 *>
 macro Type[] ElasticArray.to_array(&self, Allocator allocator)
 {
-	return list_common::list_to_new_array(Type, self, allocator);
+	return list_common::list_to_array(Type, self, allocator);
 }
 
 fn Type[] ElasticArray.to_tarray(&self)
diff --git a/lib2/std/collections/enummap.c3 b/lib7/std/collections/enummap.c3
similarity index 100%
rename from lib2/std/collections/enummap.c3
rename to lib7/std/collections/enummap.c3
diff --git a/lib2/std/collections/enumset.c3 b/lib7/std/collections/enumset.c3
similarity index 100%
rename from lib2/std/collections/enumset.c3
rename to lib7/std/collections/enumset.c3
diff --git a/lib2/std/collections/hashmap.c3 b/lib7/std/collections/hashmap.c3
similarity index 100%
rename from lib2/std/collections/hashmap.c3
rename to lib7/std/collections/hashmap.c3
diff --git a/lib2/std/collections/linkedlist.c3 b/lib7/std/collections/linkedlist.c3
similarity index 100%
rename from lib2/std/collections/linkedlist.c3
rename to lib7/std/collections/linkedlist.c3
diff --git a/lib2/std/collections/list.c3 b/lib7/std/collections/list.c3
similarity index 100%
rename from lib2/std/collections/list.c3
rename to lib7/std/collections/list.c3
diff --git a/lib2/std/collections/list_common.c3 b/lib7/std/collections/list_common.c3
similarity index 100%
rename from lib2/std/collections/list_common.c3
rename to lib7/std/collections/list_common.c3
diff --git a/lib2/std/collections/maybe.c3 b/lib7/std/collections/maybe.c3
similarity index 100%
rename from lib2/std/collections/maybe.c3
rename to lib7/std/collections/maybe.c3
diff --git a/lib2/std/collections/object.c3 b/lib7/std/collections/object.c3
similarity index 100%
rename from lib2/std/collections/object.c3
rename to lib7/std/collections/object.c3
diff --git a/lib2/std/collections/priorityqueue.c3 b/lib7/std/collections/priorityqueue.c3
similarity index 94%
rename from lib2/std/collections/priorityqueue.c3
rename to lib7/std/collections/priorityqueue.c3
index 599abd3d1..4a244292f 100644
--- a/lib2/std/collections/priorityqueue.c3
+++ b/lib7/std/collections/priorityqueue.c3
@@ -23,8 +23,8 @@
 module std::collections::priorityqueue{Type};
 import std::collections::priorityqueue::private;
 
-distinct PriorityQueue = inline List{Type};
-distinct PriorityQueueMax = inline List{Type};
+distinct PriorityQueue = inline PrivatePriorityQueue{Type, false};
+distinct PriorityQueueMax = inline PrivatePriorityQueue{Type, true};
 
 module std::collections::priorityqueue::private{Type, MAX};
 import std::collections::list, std::io;
@@ -68,13 +68,13 @@ fn void PrivatePriorityQueue.push(&self, Type element)
 }
 
 <*
- @require index < self.len : "Index out of range"
+ @require index < self.len() : "Index out of range"
 *>
 fn void PrivatePriorityQueue.remove_at(&self, usz index)
 {
 	if (index == 0)
 	{
-		self.heap.remove_last();
+		self.pop()!!;
 		return;
 	}
 	self.heap.remove_at(index);
diff --git a/lib2/std/collections/range.c3 b/lib7/std/collections/range.c3
similarity index 100%
rename from lib2/std/collections/range.c3
rename to lib7/std/collections/range.c3
diff --git a/lib2/std/collections/ringbuffer.c3 b/lib7/std/collections/ringbuffer.c3
similarity index 100%
rename from lib2/std/collections/ringbuffer.c3
rename to lib7/std/collections/ringbuffer.c3
diff --git a/lib2/std/collections/tuple.c3 b/lib7/std/collections/tuple.c3
similarity index 100%
rename from lib2/std/collections/tuple.c3
rename to lib7/std/collections/tuple.c3
diff --git a/lib2/std/compression/qoi.c3 b/lib7/std/compression/qoi.c3
similarity index 100%
rename from lib2/std/compression/qoi.c3
rename to lib7/std/compression/qoi.c3
diff --git a/lib2/std/core/allocators/arena_allocator.c3 b/lib7/std/core/allocators/arena_allocator.c3
similarity index 100%
rename from lib2/std/core/allocators/arena_allocator.c3
rename to lib7/std/core/allocators/arena_allocator.c3
diff --git a/lib2/std/core/allocators/dynamic_arena.c3 b/lib7/std/core/allocators/dynamic_arena.c3
similarity index 100%
rename from lib2/std/core/allocators/dynamic_arena.c3
rename to lib7/std/core/allocators/dynamic_arena.c3
diff --git a/lib2/std/core/allocators/heap_allocator.c3 b/lib7/std/core/allocators/heap_allocator.c3
similarity index 100%
rename from lib2/std/core/allocators/heap_allocator.c3
rename to lib7/std/core/allocators/heap_allocator.c3
diff --git a/lib2/std/core/allocators/libc_allocator.c3 b/lib7/std/core/allocators/libc_allocator.c3
similarity index 100%
rename from lib2/std/core/allocators/libc_allocator.c3
rename to lib7/std/core/allocators/libc_allocator.c3
diff --git a/lib2/std/core/allocators/on_stack_allocator.c3 b/lib7/std/core/allocators/on_stack_allocator.c3
similarity index 100%
rename from lib2/std/core/allocators/on_stack_allocator.c3
rename to lib7/std/core/allocators/on_stack_allocator.c3
diff --git a/lib2/std/core/allocators/temp_allocator.c3 b/lib7/std/core/allocators/temp_allocator.c3
similarity index 100%
rename from lib2/std/core/allocators/temp_allocator.c3
rename to lib7/std/core/allocators/temp_allocator.c3
diff --git a/lib2/std/core/allocators/tracking_allocator.c3 b/lib7/std/core/allocators/tracking_allocator.c3
similarity index 100%
rename from lib2/std/core/allocators/tracking_allocator.c3
rename to lib7/std/core/allocators/tracking_allocator.c3
diff --git a/lib2/std/core/array.c3 b/lib7/std/core/array.c3
similarity index 100%
rename from lib2/std/core/array.c3
rename to lib7/std/core/array.c3
diff --git a/lib2/std/core/bitorder.c3 b/lib7/std/core/bitorder.c3
similarity index 100%
rename from lib2/std/core/bitorder.c3
rename to lib7/std/core/bitorder.c3
diff --git a/lib2/std/core/builtin.c3 b/lib7/std/core/builtin.c3
similarity index 96%
rename from lib2/std/core/builtin.c3
rename to lib7/std/core/builtin.c3
index f9b3c2406..ca73f36b8 100644
--- a/lib2/std/core/builtin.c3
+++ b/lib7/std/core/builtin.c3
@@ -4,6 +4,31 @@
 module std::core::builtin;
 import libc, std::hash, std::io, std::os::backtrace;
 
+<*
+ EMPTY_MACRO_SLOT is a value used for implementing optional arguments for macros in an efficient
+ way. It relies on the fact that distinct types are not implicitly convertable.
+
+ You can use `@is_empty_macro_slot()` and `@is_valid_macro_slot()` to figure out whether
+ the argument has been used or not.
+
+ An example:
+
+```c3
+macro foo(a, #b = EMPTY_MACRO_SLOT)
+{
+	$if @is_valid_macro_slot(#b):
+        return invoke_foo2(a, #b);
+    $else
+        return invoke_foo1(a);
+    $endif
+}
+*>
+const EmptySlot EMPTY_MACRO_SLOT @builtin = null;
+
+distinct EmptySlot = void*;
+macro @is_empty_macro_slot(#arg) @const @builtin => @typeis(#arg, EmptySlot);
+macro @is_valid_macro_slot(#arg) @const @builtin => !@typeis(#arg, EmptySlot);
+
 /*
  Use `IteratorResult` when reading the end of an iterator, or accessing a result out of bounds.
 */
@@ -67,7 +92,7 @@ fn bool print_backtrace(String message, int backtraces_to_ignore) @if(env::NATIV
 	void*[256] buffer;
 	void*[] backtraces = backtrace::capture_current(&buffer);
 	backtraces_to_ignore++;
-	BacktraceList! backtrace = backtrace::symbolize_backtrace(allocator::temp(), backtraces);
+	BacktraceList! backtrace = backtrace::symbolize_backtrace(tmem(), backtraces);
 	if (catch backtrace) return false;
 	if (backtrace.len() <= backtraces_to_ignore) return false;
 	io::eprint("\nERROR: '");
@@ -413,10 +438,6 @@ macro uint String.hash(String c) => (uint)fnv32a::encode(c);
 macro uint char[].hash(char[] c) => (uint)fnv32a::encode(c);
 macro uint void*.hash(void* ptr) => @generic_hash(((ulong)(uptr)ptr));
 
-distinct EmptySlot = void*;
-const EmptySlot EMPTY_MACRO_SLOT @builtin = null;
-macro @is_empty_macro_slot(#arg) @builtin => @typeis(#arg, EmptySlot);
-macro @is_valid_macro_slot(#arg) @builtin => !@typeis(#arg, EmptySlot);
 
 const MAX_FRAMEADDRESS = 128;
 <*
diff --git a/lib2/std/core/builtin_comparison.c3 b/lib7/std/core/builtin_comparison.c3
similarity index 100%
rename from lib2/std/core/builtin_comparison.c3
rename to lib7/std/core/builtin_comparison.c3
diff --git a/lib2/std/core/cinterop.c3 b/lib7/std/core/cinterop.c3
similarity index 100%
rename from lib2/std/core/cinterop.c3
rename to lib7/std/core/cinterop.c3
diff --git a/lib2/std/core/conv.c3 b/lib7/std/core/conv.c3
similarity index 100%
rename from lib2/std/core/conv.c3
rename to lib7/std/core/conv.c3
diff --git a/lib2/std/core/dstring.c3 b/lib7/std/core/dstring.c3
similarity index 100%
rename from lib2/std/core/dstring.c3
rename to lib7/std/core/dstring.c3
diff --git a/lib2/std/core/env.c3 b/lib7/std/core/env.c3
similarity index 100%
rename from lib2/std/core/env.c3
rename to lib7/std/core/env.c3
diff --git a/lib2/std/core/mem.c3 b/lib7/std/core/mem.c3
similarity index 100%
rename from lib2/std/core/mem.c3
rename to lib7/std/core/mem.c3
diff --git a/lib2/std/core/mem_allocator.c3 b/lib7/std/core/mem_allocator.c3
similarity index 100%
rename from lib2/std/core/mem_allocator.c3
rename to lib7/std/core/mem_allocator.c3
diff --git a/lib2/std/core/os/wasm_memory.c3 b/lib7/std/core/os/wasm_memory.c3
similarity index 100%
rename from lib2/std/core/os/wasm_memory.c3
rename to lib7/std/core/os/wasm_memory.c3
diff --git a/lib2/std/core/private/cpu_detect.c3 b/lib7/std/core/private/cpu_detect.c3
similarity index 100%
rename from lib2/std/core/private/cpu_detect.c3
rename to lib7/std/core/private/cpu_detect.c3
diff --git a/lib2/std/core/private/macho_runtime.c3 b/lib7/std/core/private/macho_runtime.c3
similarity index 100%
rename from lib2/std/core/private/macho_runtime.c3
rename to lib7/std/core/private/macho_runtime.c3
diff --git a/lib2/std/core/private/main_stub.c3 b/lib7/std/core/private/main_stub.c3
similarity index 100%
rename from lib2/std/core/private/main_stub.c3
rename to lib7/std/core/private/main_stub.c3
diff --git a/lib2/std/core/runtime.c3 b/lib7/std/core/runtime.c3
similarity index 100%
rename from lib2/std/core/runtime.c3
rename to lib7/std/core/runtime.c3
diff --git a/lib2/std/core/runtime_benchmark.c3 b/lib7/std/core/runtime_benchmark.c3
similarity index 100%
rename from lib2/std/core/runtime_benchmark.c3
rename to lib7/std/core/runtime_benchmark.c3
diff --git a/lib2/std/core/runtime_test.c3 b/lib7/std/core/runtime_test.c3
similarity index 100%
rename from lib2/std/core/runtime_test.c3
rename to lib7/std/core/runtime_test.c3
diff --git a/lib2/std/core/sanitizer/asan.c3 b/lib7/std/core/sanitizer/asan.c3
similarity index 100%
rename from lib2/std/core/sanitizer/asan.c3
rename to lib7/std/core/sanitizer/asan.c3
diff --git a/lib2/std/core/sanitizer/sanitizer.c3 b/lib7/std/core/sanitizer/sanitizer.c3
similarity index 100%
rename from lib2/std/core/sanitizer/sanitizer.c3
rename to lib7/std/core/sanitizer/sanitizer.c3
diff --git a/lib2/std/core/sanitizer/tsan.c3 b/lib7/std/core/sanitizer/tsan.c3
similarity index 100%
rename from lib2/std/core/sanitizer/tsan.c3
rename to lib7/std/core/sanitizer/tsan.c3
diff --git a/lib2/std/core/string.c3 b/lib7/std/core/string.c3
similarity index 100%
rename from lib2/std/core/string.c3
rename to lib7/std/core/string.c3
diff --git a/lib2/std/core/string_iterator.c3 b/lib7/std/core/string_iterator.c3
similarity index 100%
rename from lib2/std/core/string_iterator.c3
rename to lib7/std/core/string_iterator.c3
diff --git a/lib2/std/core/string_to_real.c3 b/lib7/std/core/string_to_real.c3
similarity index 100%
rename from lib2/std/core/string_to_real.c3
rename to lib7/std/core/string_to_real.c3
diff --git a/lib2/std/core/test.c3 b/lib7/std/core/test.c3
similarity index 100%
rename from lib2/std/core/test.c3
rename to lib7/std/core/test.c3
diff --git a/lib2/std/core/types.c3 b/lib7/std/core/types.c3
similarity index 100%
rename from lib2/std/core/types.c3
rename to lib7/std/core/types.c3
diff --git a/lib2/std/core/values.c3 b/lib7/std/core/values.c3
similarity index 100%
rename from lib2/std/core/values.c3
rename to lib7/std/core/values.c3
diff --git a/lib2/std/crypto/crypto.c3 b/lib7/std/crypto/crypto.c3
similarity index 100%
rename from lib2/std/crypto/crypto.c3
rename to lib7/std/crypto/crypto.c3
diff --git a/lib2/std/crypto/dh.c3 b/lib7/std/crypto/dh.c3
similarity index 100%
rename from lib2/std/crypto/dh.c3
rename to lib7/std/crypto/dh.c3
diff --git a/lib2/std/crypto/rc4.c3 b/lib7/std/crypto/rc4.c3
similarity index 100%
rename from lib2/std/crypto/rc4.c3
rename to lib7/std/crypto/rc4.c3
diff --git a/lib2/std/encoding/base32.c3 b/lib7/std/encoding/base32.c3
similarity index 100%
rename from lib2/std/encoding/base32.c3
rename to lib7/std/encoding/base32.c3
diff --git a/lib2/std/encoding/base64.c3 b/lib7/std/encoding/base64.c3
similarity index 100%
rename from lib2/std/encoding/base64.c3
rename to lib7/std/encoding/base64.c3
diff --git a/lib2/std/encoding/csv.c3 b/lib7/std/encoding/csv.c3
similarity index 100%
rename from lib2/std/encoding/csv.c3
rename to lib7/std/encoding/csv.c3
diff --git a/lib2/std/encoding/encoding.c3 b/lib7/std/encoding/encoding.c3
similarity index 100%
rename from lib2/std/encoding/encoding.c3
rename to lib7/std/encoding/encoding.c3
diff --git a/lib2/std/encoding/hex.c3 b/lib7/std/encoding/hex.c3
similarity index 100%
rename from lib2/std/encoding/hex.c3
rename to lib7/std/encoding/hex.c3
diff --git a/lib2/std/encoding/json.c3 b/lib7/std/encoding/json.c3
similarity index 100%
rename from lib2/std/encoding/json.c3
rename to lib7/std/encoding/json.c3
diff --git a/lib2/std/experimental/FrameScheduler.c3 b/lib7/std/experimental/FrameScheduler.c3
similarity index 100%
rename from lib2/std/experimental/FrameScheduler.c3
rename to lib7/std/experimental/FrameScheduler.c3
diff --git a/lib2/std/hash/adler32.c3 b/lib7/std/hash/adler32.c3
similarity index 100%
rename from lib2/std/hash/adler32.c3
rename to lib7/std/hash/adler32.c3
diff --git a/lib2/std/hash/crc32.c3 b/lib7/std/hash/crc32.c3
similarity index 100%
rename from lib2/std/hash/crc32.c3
rename to lib7/std/hash/crc32.c3
diff --git a/lib2/std/hash/crc64.c3 b/lib7/std/hash/crc64.c3
similarity index 100%
rename from lib2/std/hash/crc64.c3
rename to lib7/std/hash/crc64.c3
diff --git a/lib2/std/hash/fnv32a.c3 b/lib7/std/hash/fnv32a.c3
similarity index 100%
rename from lib2/std/hash/fnv32a.c3
rename to lib7/std/hash/fnv32a.c3
diff --git a/lib2/std/hash/fnv64a.c3 b/lib7/std/hash/fnv64a.c3
similarity index 100%
rename from lib2/std/hash/fnv64a.c3
rename to lib7/std/hash/fnv64a.c3
diff --git a/lib2/std/hash/hmac.c3 b/lib7/std/hash/hmac.c3
similarity index 100%
rename from lib2/std/hash/hmac.c3
rename to lib7/std/hash/hmac.c3
diff --git a/lib2/std/hash/md5.c3 b/lib7/std/hash/md5.c3
similarity index 100%
rename from lib2/std/hash/md5.c3
rename to lib7/std/hash/md5.c3
diff --git a/lib2/std/hash/sha1.c3 b/lib7/std/hash/sha1.c3
similarity index 100%
rename from lib2/std/hash/sha1.c3
rename to lib7/std/hash/sha1.c3
diff --git a/lib2/std/hash/sha256.c3 b/lib7/std/hash/sha256.c3
similarity index 100%
rename from lib2/std/hash/sha256.c3
rename to lib7/std/hash/sha256.c3
diff --git a/lib2/std/io/bits.c3 b/lib7/std/io/bits.c3
similarity index 100%
rename from lib2/std/io/bits.c3
rename to lib7/std/io/bits.c3
diff --git a/lib2/std/io/file.c3 b/lib7/std/io/file.c3
similarity index 100%
rename from lib2/std/io/file.c3
rename to lib7/std/io/file.c3
diff --git a/lib2/std/io/formatter.c3 b/lib7/std/io/formatter.c3
similarity index 100%
rename from lib2/std/io/formatter.c3
rename to lib7/std/io/formatter.c3
diff --git a/lib2/std/io/formatter_private.c3 b/lib7/std/io/formatter_private.c3
similarity index 100%
rename from lib2/std/io/formatter_private.c3
rename to lib7/std/io/formatter_private.c3
diff --git a/lib2/std/io/io.c3 b/lib7/std/io/io.c3
similarity index 100%
rename from lib2/std/io/io.c3
rename to lib7/std/io/io.c3
diff --git a/lib2/std/io/os/chdir.c3 b/lib7/std/io/os/chdir.c3
similarity index 100%
rename from lib2/std/io/os/chdir.c3
rename to lib7/std/io/os/chdir.c3
diff --git a/lib2/std/io/os/file_libc.c3 b/lib7/std/io/os/file_libc.c3
similarity index 100%
rename from lib2/std/io/os/file_libc.c3
rename to lib7/std/io/os/file_libc.c3
diff --git a/lib2/std/io/os/file_nolibc.c3 b/lib7/std/io/os/file_nolibc.c3
similarity index 100%
rename from lib2/std/io/os/file_nolibc.c3
rename to lib7/std/io/os/file_nolibc.c3
diff --git a/lib2/std/io/os/fileinfo.c3 b/lib7/std/io/os/fileinfo.c3
similarity index 100%
rename from lib2/std/io/os/fileinfo.c3
rename to lib7/std/io/os/fileinfo.c3
diff --git a/lib2/std/io/os/getcwd.c3 b/lib7/std/io/os/getcwd.c3
similarity index 100%
rename from lib2/std/io/os/getcwd.c3
rename to lib7/std/io/os/getcwd.c3
diff --git a/lib2/std/io/os/ls.c3 b/lib7/std/io/os/ls.c3
similarity index 97%
rename from lib2/std/io/os/ls.c3
rename to lib7/std/io/os/ls.c3
index c9c9edd0a..7a51865e8 100644
--- a/lib2/std/io/os/ls.c3
+++ b/lib7/std/io/os/ls.c3
@@ -27,7 +27,7 @@ import std::time, std::os, std::io;
 fn PathList! native_ls(Path dir, bool no_dirs, bool no_symlinks, String mask, Allocator allocator)
 {
 	PathList list;
-	list.new_init(allocator: allocator);
+	list.init(allocator);
 
 	@pool(allocator)
 	{
diff --git a/lib2/std/io/os/mkdir.c3 b/lib7/std/io/os/mkdir.c3
similarity index 100%
rename from lib2/std/io/os/mkdir.c3
rename to lib7/std/io/os/mkdir.c3
diff --git a/lib2/std/io/os/rmdir.c3 b/lib7/std/io/os/rmdir.c3
similarity index 100%
rename from lib2/std/io/os/rmdir.c3
rename to lib7/std/io/os/rmdir.c3
diff --git a/lib2/std/io/os/rmtree.c3 b/lib7/std/io/os/rmtree.c3
similarity index 100%
rename from lib2/std/io/os/rmtree.c3
rename to lib7/std/io/os/rmtree.c3
diff --git a/lib2/std/io/os/temp_directory.c3 b/lib7/std/io/os/temp_directory.c3
similarity index 100%
rename from lib2/std/io/os/temp_directory.c3
rename to lib7/std/io/os/temp_directory.c3
diff --git a/lib2/std/io/path.c3 b/lib7/std/io/path.c3
similarity index 100%
rename from lib2/std/io/path.c3
rename to lib7/std/io/path.c3
diff --git a/lib2/std/io/stream.c3 b/lib7/std/io/stream.c3
similarity index 100%
rename from lib2/std/io/stream.c3
rename to lib7/std/io/stream.c3
diff --git a/lib2/std/io/stream/buffer.c3 b/lib7/std/io/stream/buffer.c3
similarity index 100%
rename from lib2/std/io/stream/buffer.c3
rename to lib7/std/io/stream/buffer.c3
diff --git a/lib2/std/io/stream/bytebuffer.c3 b/lib7/std/io/stream/bytebuffer.c3
similarity index 100%
rename from lib2/std/io/stream/bytebuffer.c3
rename to lib7/std/io/stream/bytebuffer.c3
diff --git a/lib2/std/io/stream/bytereader.c3 b/lib7/std/io/stream/bytereader.c3
similarity index 100%
rename from lib2/std/io/stream/bytereader.c3
rename to lib7/std/io/stream/bytereader.c3
diff --git a/lib2/std/io/stream/bytewriter.c3 b/lib7/std/io/stream/bytewriter.c3
similarity index 100%
rename from lib2/std/io/stream/bytewriter.c3
rename to lib7/std/io/stream/bytewriter.c3
diff --git a/lib2/std/io/stream/limitreader.c3 b/lib7/std/io/stream/limitreader.c3
similarity index 100%
rename from lib2/std/io/stream/limitreader.c3
rename to lib7/std/io/stream/limitreader.c3
diff --git a/lib2/std/io/stream/multireader.c3 b/lib7/std/io/stream/multireader.c3
similarity index 100%
rename from lib2/std/io/stream/multireader.c3
rename to lib7/std/io/stream/multireader.c3
diff --git a/lib2/std/io/stream/multiwriter.c3 b/lib7/std/io/stream/multiwriter.c3
similarity index 100%
rename from lib2/std/io/stream/multiwriter.c3
rename to lib7/std/io/stream/multiwriter.c3
diff --git a/lib2/std/io/stream/scanner.c3 b/lib7/std/io/stream/scanner.c3
similarity index 100%
rename from lib2/std/io/stream/scanner.c3
rename to lib7/std/io/stream/scanner.c3
diff --git a/lib2/std/io/stream/teereader.c3 b/lib7/std/io/stream/teereader.c3
similarity index 100%
rename from lib2/std/io/stream/teereader.c3
rename to lib7/std/io/stream/teereader.c3
diff --git a/lib2/std/libc/libc.c3 b/lib7/std/libc/libc.c3
similarity index 100%
rename from lib2/std/libc/libc.c3
rename to lib7/std/libc/libc.c3
diff --git a/lib2/std/libc/libc_extra.c3 b/lib7/std/libc/libc_extra.c3
similarity index 100%
rename from lib2/std/libc/libc_extra.c3
rename to lib7/std/libc/libc_extra.c3
diff --git a/lib2/std/libc/os/darwin.c3 b/lib7/std/libc/os/darwin.c3
similarity index 100%
rename from lib2/std/libc/os/darwin.c3
rename to lib7/std/libc/os/darwin.c3
diff --git a/lib2/std/libc/os/errno.c3 b/lib7/std/libc/os/errno.c3
similarity index 100%
rename from lib2/std/libc/os/errno.c3
rename to lib7/std/libc/os/errno.c3
diff --git a/lib2/std/libc/os/freebsd.c3 b/lib7/std/libc/os/freebsd.c3
similarity index 100%
rename from lib2/std/libc/os/freebsd.c3
rename to lib7/std/libc/os/freebsd.c3
diff --git a/lib2/std/libc/os/linux.c3 b/lib7/std/libc/os/linux.c3
similarity index 100%
rename from lib2/std/libc/os/linux.c3
rename to lib7/std/libc/os/linux.c3
diff --git a/lib2/std/libc/os/posix.c3 b/lib7/std/libc/os/posix.c3
similarity index 100%
rename from lib2/std/libc/os/posix.c3
rename to lib7/std/libc/os/posix.c3
diff --git a/lib2/std/libc/os/win32.c3 b/lib7/std/libc/os/win32.c3
similarity index 100%
rename from lib2/std/libc/os/win32.c3
rename to lib7/std/libc/os/win32.c3
diff --git a/lib2/std/libc/termios.c3 b/lib7/std/libc/termios.c3
similarity index 100%
rename from lib2/std/libc/termios.c3
rename to lib7/std/libc/termios.c3
diff --git a/lib2/std/math/bigint.c3 b/lib7/std/math/bigint.c3
similarity index 100%
rename from lib2/std/math/bigint.c3
rename to lib7/std/math/bigint.c3
diff --git a/lib2/std/math/math.c3 b/lib7/std/math/math.c3
similarity index 100%
rename from lib2/std/math/math.c3
rename to lib7/std/math/math.c3
diff --git a/lib2/std/math/math_builtin.c3 b/lib7/std/math/math_builtin.c3
similarity index 100%
rename from lib2/std/math/math_builtin.c3
rename to lib7/std/math/math_builtin.c3
diff --git a/lib2/std/math/math_complex.c3 b/lib7/std/math/math_complex.c3
similarity index 100%
rename from lib2/std/math/math_complex.c3
rename to lib7/std/math/math_complex.c3
diff --git a/lib2/std/math/math_easings.c3 b/lib7/std/math/math_easings.c3
similarity index 100%
rename from lib2/std/math/math_easings.c3
rename to lib7/std/math/math_easings.c3
diff --git a/lib2/std/math/math_i128.c3 b/lib7/std/math/math_i128.c3
similarity index 100%
rename from lib2/std/math/math_i128.c3
rename to lib7/std/math/math_i128.c3
diff --git a/lib2/std/math/math_libc.c3 b/lib7/std/math/math_libc.c3
similarity index 100%
rename from lib2/std/math/math_libc.c3
rename to lib7/std/math/math_libc.c3
diff --git a/lib2/std/math/math_matrix.c3 b/lib7/std/math/math_matrix.c3
similarity index 100%
rename from lib2/std/math/math_matrix.c3
rename to lib7/std/math/math_matrix.c3
diff --git a/lib2/std/math/math_nolibc/__cos.c3 b/lib7/std/math/math_nolibc/__cos.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/__cos.c3
rename to lib7/std/math/math_nolibc/__cos.c3
diff --git a/lib2/std/math/math_nolibc/__cosdf.c3 b/lib7/std/math/math_nolibc/__cosdf.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/__cosdf.c3
rename to lib7/std/math/math_nolibc/__cosdf.c3
diff --git a/lib2/std/math/math_nolibc/__fmod.c3 b/lib7/std/math/math_nolibc/__fmod.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/__fmod.c3
rename to lib7/std/math/math_nolibc/__fmod.c3
diff --git a/lib2/std/math/math_nolibc/__sin.c3 b/lib7/std/math/math_nolibc/__sin.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/__sin.c3
rename to lib7/std/math/math_nolibc/__sin.c3
diff --git a/lib2/std/math/math_nolibc/__sindf.c3 b/lib7/std/math/math_nolibc/__sindf.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/__sindf.c3
rename to lib7/std/math/math_nolibc/__sindf.c3
diff --git a/lib2/std/math/math_nolibc/__tan.c3 b/lib7/std/math/math_nolibc/__tan.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/__tan.c3
rename to lib7/std/math/math_nolibc/__tan.c3
diff --git a/lib2/std/math/math_nolibc/__tandf.c3 b/lib7/std/math/math_nolibc/__tandf.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/__tandf.c3
rename to lib7/std/math/math_nolibc/__tandf.c3
diff --git a/lib2/std/math/math_nolibc/acos.c3 b/lib7/std/math/math_nolibc/acos.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/acos.c3
rename to lib7/std/math/math_nolibc/acos.c3
diff --git a/lib2/std/math/math_nolibc/asin.c3 b/lib7/std/math/math_nolibc/asin.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/asin.c3
rename to lib7/std/math/math_nolibc/asin.c3
diff --git a/lib2/std/math/math_nolibc/atan.c3 b/lib7/std/math/math_nolibc/atan.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/atan.c3
rename to lib7/std/math/math_nolibc/atan.c3
diff --git a/lib2/std/math/math_nolibc/atanh.c3 b/lib7/std/math/math_nolibc/atanh.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/atanh.c3
rename to lib7/std/math/math_nolibc/atanh.c3
diff --git a/lib2/std/math/math_nolibc/ceil.c3 b/lib7/std/math/math_nolibc/ceil.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/ceil.c3
rename to lib7/std/math/math_nolibc/ceil.c3
diff --git a/lib2/std/math/math_nolibc/cos.c3 b/lib7/std/math/math_nolibc/cos.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/cos.c3
rename to lib7/std/math/math_nolibc/cos.c3
diff --git a/lib2/std/math/math_nolibc/exp.c3 b/lib7/std/math/math_nolibc/exp.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/exp.c3
rename to lib7/std/math/math_nolibc/exp.c3
diff --git a/lib2/std/math/math_nolibc/exp2.c3 b/lib7/std/math/math_nolibc/exp2.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/exp2.c3
rename to lib7/std/math/math_nolibc/exp2.c3
diff --git a/lib2/std/math/math_nolibc/fabs.c3 b/lib7/std/math/math_nolibc/fabs.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/fabs.c3
rename to lib7/std/math/math_nolibc/fabs.c3
diff --git a/lib2/std/math/math_nolibc/floor.c3 b/lib7/std/math/math_nolibc/floor.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/floor.c3
rename to lib7/std/math/math_nolibc/floor.c3
diff --git a/lib2/std/math/math_nolibc/frexp.c3 b/lib7/std/math/math_nolibc/frexp.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/frexp.c3
rename to lib7/std/math/math_nolibc/frexp.c3
diff --git a/lib2/std/math/math_nolibc/ldexp.c3 b/lib7/std/math/math_nolibc/ldexp.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/ldexp.c3
rename to lib7/std/math/math_nolibc/ldexp.c3
diff --git a/lib2/std/math/math_nolibc/log.c3 b/lib7/std/math/math_nolibc/log.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/log.c3
rename to lib7/std/math/math_nolibc/log.c3
diff --git a/lib2/std/math/math_nolibc/log1p.c3 b/lib7/std/math/math_nolibc/log1p.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/log1p.c3
rename to lib7/std/math/math_nolibc/log1p.c3
diff --git a/lib2/std/math/math_nolibc/math_nolibc.c3 b/lib7/std/math/math_nolibc/math_nolibc.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/math_nolibc.c3
rename to lib7/std/math/math_nolibc/math_nolibc.c3
diff --git a/lib2/std/math/math_nolibc/pow.c3 b/lib7/std/math/math_nolibc/pow.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/pow.c3
rename to lib7/std/math/math_nolibc/pow.c3
diff --git a/lib2/std/math/math_nolibc/rempi.c3 b/lib7/std/math/math_nolibc/rempi.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/rempi.c3
rename to lib7/std/math/math_nolibc/rempi.c3
diff --git a/lib2/std/math/math_nolibc/round.c3 b/lib7/std/math/math_nolibc/round.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/round.c3
rename to lib7/std/math/math_nolibc/round.c3
diff --git a/lib2/std/math/math_nolibc/scalbn.c3 b/lib7/std/math/math_nolibc/scalbn.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/scalbn.c3
rename to lib7/std/math/math_nolibc/scalbn.c3
diff --git a/lib2/std/math/math_nolibc/sin.c3 b/lib7/std/math/math_nolibc/sin.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/sin.c3
rename to lib7/std/math/math_nolibc/sin.c3
diff --git a/lib2/std/math/math_nolibc/sincos.c3 b/lib7/std/math/math_nolibc/sincos.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/sincos.c3
rename to lib7/std/math/math_nolibc/sincos.c3
diff --git a/lib2/std/math/math_nolibc/tan.c3 b/lib7/std/math/math_nolibc/tan.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/tan.c3
rename to lib7/std/math/math_nolibc/tan.c3
diff --git a/lib2/std/math/math_nolibc/trig.c3 b/lib7/std/math/math_nolibc/trig.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/trig.c3
rename to lib7/std/math/math_nolibc/trig.c3
diff --git a/lib2/std/math/math_nolibc/trunc.c3 b/lib7/std/math/math_nolibc/trunc.c3
similarity index 100%
rename from lib2/std/math/math_nolibc/trunc.c3
rename to lib7/std/math/math_nolibc/trunc.c3
diff --git a/lib2/std/math/math_quaternion.c3 b/lib7/std/math/math_quaternion.c3
similarity index 100%
rename from lib2/std/math/math_quaternion.c3
rename to lib7/std/math/math_quaternion.c3
diff --git a/lib2/std/math/math_random.c3 b/lib7/std/math/math_random.c3
similarity index 100%
rename from lib2/std/math/math_random.c3
rename to lib7/std/math/math_random.c3
diff --git a/lib2/std/math/math_vector.c3 b/lib7/std/math/math_vector.c3
similarity index 100%
rename from lib2/std/math/math_vector.c3
rename to lib7/std/math/math_vector.c3
diff --git a/lib2/std/math/random/math.lcg.c3 b/lib7/std/math/random/math.lcg.c3
similarity index 100%
rename from lib2/std/math/random/math.lcg.c3
rename to lib7/std/math/random/math.lcg.c3
diff --git a/lib2/std/math/random/math.mcg.c3 b/lib7/std/math/random/math.mcg.c3
similarity index 100%
rename from lib2/std/math/random/math.mcg.c3
rename to lib7/std/math/random/math.mcg.c3
diff --git a/lib2/std/math/random/math.msws.c3 b/lib7/std/math/random/math.msws.c3
similarity index 100%
rename from lib2/std/math/random/math.msws.c3
rename to lib7/std/math/random/math.msws.c3
diff --git a/lib2/std/math/random/math.pcg.c3 b/lib7/std/math/random/math.pcg.c3
similarity index 100%
rename from lib2/std/math/random/math.pcg.c3
rename to lib7/std/math/random/math.pcg.c3
diff --git a/lib2/std/math/random/math.seeder.c3 b/lib7/std/math/random/math.seeder.c3
similarity index 100%
rename from lib2/std/math/random/math.seeder.c3
rename to lib7/std/math/random/math.seeder.c3
diff --git a/lib2/std/math/random/math.sfc.c3 b/lib7/std/math/random/math.sfc.c3
similarity index 100%
rename from lib2/std/math/random/math.sfc.c3
rename to lib7/std/math/random/math.sfc.c3
diff --git a/lib2/std/math/random/math.simple_random.c3 b/lib7/std/math/random/math.simple_random.c3
similarity index 100%
rename from lib2/std/math/random/math.simple_random.c3
rename to lib7/std/math/random/math.simple_random.c3
diff --git a/lib2/std/math/uuid.c3 b/lib7/std/math/uuid.c3
similarity index 100%
rename from lib2/std/math/uuid.c3
rename to lib7/std/math/uuid.c3
diff --git a/lib2/std/net/http.c3 b/lib7/std/net/http.c3
similarity index 100%
rename from lib2/std/net/http.c3
rename to lib7/std/net/http.c3
diff --git a/lib2/std/net/inetaddr.c3 b/lib7/std/net/inetaddr.c3
similarity index 100%
rename from lib2/std/net/inetaddr.c3
rename to lib7/std/net/inetaddr.c3
diff --git a/lib2/std/net/net.c3 b/lib7/std/net/net.c3
similarity index 100%
rename from lib2/std/net/net.c3
rename to lib7/std/net/net.c3
diff --git a/lib2/std/net/os/common.c3 b/lib7/std/net/os/common.c3
similarity index 100%
rename from lib2/std/net/os/common.c3
rename to lib7/std/net/os/common.c3
diff --git a/lib2/std/net/os/darwin.c3 b/lib7/std/net/os/darwin.c3
similarity index 100%
rename from lib2/std/net/os/darwin.c3
rename to lib7/std/net/os/darwin.c3
diff --git a/lib2/std/net/os/linux.c3 b/lib7/std/net/os/linux.c3
similarity index 100%
rename from lib2/std/net/os/linux.c3
rename to lib7/std/net/os/linux.c3
diff --git a/lib2/std/net/os/posix.c3 b/lib7/std/net/os/posix.c3
similarity index 100%
rename from lib2/std/net/os/posix.c3
rename to lib7/std/net/os/posix.c3
diff --git a/lib2/std/net/os/win32.c3 b/lib7/std/net/os/win32.c3
similarity index 100%
rename from lib2/std/net/os/win32.c3
rename to lib7/std/net/os/win32.c3
diff --git a/lib2/std/net/socket.c3 b/lib7/std/net/socket.c3
similarity index 100%
rename from lib2/std/net/socket.c3
rename to lib7/std/net/socket.c3
diff --git a/lib2/std/net/socket_private.c3 b/lib7/std/net/socket_private.c3
similarity index 100%
rename from lib2/std/net/socket_private.c3
rename to lib7/std/net/socket_private.c3
diff --git a/lib2/std/net/tcp.c3 b/lib7/std/net/tcp.c3
similarity index 100%
rename from lib2/std/net/tcp.c3
rename to lib7/std/net/tcp.c3
diff --git a/lib2/std/net/udp.c3 b/lib7/std/net/udp.c3
similarity index 100%
rename from lib2/std/net/udp.c3
rename to lib7/std/net/udp.c3
diff --git a/lib2/std/net/url.c3 b/lib7/std/net/url.c3
similarity index 100%
rename from lib2/std/net/url.c3
rename to lib7/std/net/url.c3
diff --git a/lib2/std/net/url_encoding.c3 b/lib7/std/net/url_encoding.c3
similarity index 100%
rename from lib2/std/net/url_encoding.c3
rename to lib7/std/net/url_encoding.c3
diff --git a/lib2/std/os/backtrace.c3 b/lib7/std/os/backtrace.c3
similarity index 90%
rename from lib2/std/os/backtrace.c3
rename to lib7/std/os/backtrace.c3
index f7c6f0bf1..c2e7dd9b9 100644
--- a/lib2/std/os/backtrace.c3
+++ b/lib7/std/os/backtrace.c3
@@ -55,7 +55,7 @@ fn void Backtrace.free(&self)
 	allocator::free(self.allocator, self.file);
 }
 
-fn Backtrace* Backtrace.init(&self, uptr offset, String function, String object_file, String file = "", uint line = 0, Allocator allocator)
+fn Backtrace* Backtrace.init(&self, Allocator allocator, uptr offset, String function, String object_file, String file = "", uint line = 0)
 {
 	if (!allocator)
 	{
@@ -97,7 +97,7 @@ def symbolize_backtrace = linux::symbolize_backtrace @if(env::LINUX);
 def symbolize_backtrace = win32::symbolize_backtrace @if(env::WIN32);
 def symbolize_backtrace = darwin::symbolize_backtrace @if(env::DARWIN);
 
-fn BacktraceList! symbolize_backtrace(void*[] backtrace, Allocator allocator) @if(!env::NATIVE_STACKTRACE)
+fn BacktraceList! symbolize_backtrace(Allocator allocator, void*[] backtrace) @if(!env::NATIVE_STACKTRACE)
 {
 	return {};
 }
\ No newline at end of file
diff --git a/lib2/std/os/cpu.c3 b/lib7/std/os/cpu.c3
similarity index 100%
rename from lib2/std/os/cpu.c3
rename to lib7/std/os/cpu.c3
diff --git a/lib2/std/os/env.c3 b/lib7/std/os/env.c3
similarity index 100%
rename from lib2/std/os/env.c3
rename to lib7/std/os/env.c3
diff --git a/lib2/std/os/linux/heap.c3 b/lib7/std/os/linux/heap.c3
similarity index 100%
rename from lib2/std/os/linux/heap.c3
rename to lib7/std/os/linux/heap.c3
diff --git a/lib2/std/os/linux/linux.c3 b/lib7/std/os/linux/linux.c3
similarity index 82%
rename from lib2/std/os/linux/linux.c3
rename to lib7/std/os/linux/linux.c3
index 305db433e..50bf56107 100644
--- a/lib2/std/os/linux/linux.c3
+++ b/lib7/std/os/linux/linux.c3
@@ -128,17 +128,17 @@ fn ulong! elf_module_image_base(String path) @local
 	return 0;
 }
 
-fn void! backtrace_add_from_exec(BacktraceList* list, void* addr, Allocator allocator) @local
+fn void! backtrace_add_from_exec(Allocator allocator, BacktraceList* list, void* addr) @local
 {
 	char[] buf = mem::temp_alloc_array(char, 1024);
 
 	String exec_path = process::execute_stdout_to_buffer(buf, {"realpath", "-e", string::tformat("/proc/%d/exe", posix::getpid())})!;
 	String obj_name = exec_path.copy(allocator);
 	String addr2line = process::execute_stdout_to_buffer(buf, {"addr2line", "-p", "-i", "-C", "-f", "-e", exec_path, string::tformat("0x%x", addr)})!;
-	return backtrace_add_addr2line(list, addr, addr2line, obj_name, "???", allocator);
+	return backtrace_add_addr2line(allocator, list, addr, addr2line, obj_name, "???");
 }
 
-fn void! backtrace_add_from_dlinfo(BacktraceList* list, void* addr, Linux_Dl_info* info, Allocator allocator) @local
+fn void! backtrace_add_from_dlinfo(Allocator allocator, BacktraceList* list, void* addr, Linux_Dl_info* info) @local
 {
 	char[] buf = mem::temp_alloc_array(char, 1024);
 
@@ -146,10 +146,10 @@ fn void! backtrace_add_from_dlinfo(BacktraceList* list, void* addr, Linux_Dl_inf
 	ZString obj_path  = info.dli_fname;
 	String  sname     = info.dli_sname ? info.dli_sname.str_view() : "???";
 	String  addr2line = process::execute_stdout_to_buffer(buf, {"addr2line", "-p", "-i", "-C", "-f", "-e", obj_path.str_view(), string::tformat("0x%x", obj_addr - 1)})!;
-	return backtrace_add_addr2line(list, addr, addr2line, info.dli_fname.str_view(), sname, allocator);
+	return backtrace_add_addr2line(allocator, list, addr, addr2line, info.dli_fname.str_view(), sname);
 }
 
-fn Backtrace! backtrace_line_parse(String string, String obj_name, String func_name, bool is_inlined, Allocator allocator)
+fn Backtrace! backtrace_line_parse(Allocator allocator, String string, String obj_name, String func_name, bool is_inlined)
 {
 	String[] parts = string.trim().tsplit(" at ");
 	if (parts.len != 2) return SearchResult.MISSING?;
@@ -171,14 +171,14 @@ fn Backtrace! backtrace_line_parse(String string, String obj_name, String func_n
 		.is_inline   = is_inlined
 	};
 }
-fn void! backtrace_add_addr2line(BacktraceList* list, void* addr, String addr2line, String obj_name, String func_name, Allocator allocator) @local
+fn void! backtrace_add_addr2line(Allocator allocator, BacktraceList* list, void* addr, String addr2line, String obj_name, String func_name) @local
 {
 	String[] inline_parts = addr2line.tsplit("(inlined by)");
 	usz last = inline_parts.len - 1;
 	foreach (i, part : inline_parts)
 	{
 		bool is_inline = i != last;
-		Backtrace! trace = backtrace_line_parse(part, obj_name, func_name, is_inline, allocator);
+		Backtrace! trace = backtrace_line_parse(allocator, part, obj_name, func_name, is_inline);
 		if (catch trace)
 		{
 			list.push({
@@ -196,7 +196,7 @@ fn void! backtrace_add_addr2line(BacktraceList* list, void* addr, String addr2li
 	}
 }
 
-fn void! backtrace_add_element(BacktraceList *list, void* addr, Allocator allocator = allocator::heap()) @local
+fn void! backtrace_add_element(Allocator allocator, BacktraceList *list, void* addr) @local
 {
 	if (!addr)
 	{
@@ -209,16 +209,16 @@ fn void! backtrace_add_element(BacktraceList *list, void* addr, Allocator alloca
 		Linux_Dl_info info;
 		if (dladdr(addr, &info) == 0)
 		{
-			return backtrace_add_from_exec(list, addr, allocator);
+			return backtrace_add_from_exec(allocator, list, addr);
 		}
-		return backtrace_add_from_dlinfo(list, addr, &info, allocator);
+		return backtrace_add_from_dlinfo(allocator, list, addr, &info);
 	};
 }
 
-fn BacktraceList! symbolize_backtrace(void*[] backtrace, Allocator allocator)
+fn BacktraceList! symbolize_backtrace(Allocator allocator, void*[] backtrace)
 {
 	BacktraceList list;
-	list.new_init(backtrace.len, allocator);
+	list.init(allocator, backtrace.len);
 	defer catch
 	{
 		foreach (trace : list)
@@ -231,7 +231,7 @@ fn BacktraceList! symbolize_backtrace(void*[] backtrace, Allocator allocator)
 	{
 		foreach (addr : backtrace)
 		{
-			backtrace_add_element(&list, addr, allocator)!;
+			backtrace_add_element(allocator, &list, addr)!;
 		}
 	};
 	return list;
diff --git a/lib2/std/os/macos/cf_allocator.c3 b/lib7/std/os/macos/cf_allocator.c3
similarity index 100%
rename from lib2/std/os/macos/cf_allocator.c3
rename to lib7/std/os/macos/cf_allocator.c3
diff --git a/lib2/std/os/macos/cf_array.c3 b/lib7/std/os/macos/cf_array.c3
similarity index 100%
rename from lib2/std/os/macos/cf_array.c3
rename to lib7/std/os/macos/cf_array.c3
diff --git a/lib2/std/os/macos/cocoa.c3 b/lib7/std/os/macos/cocoa.c3
similarity index 100%
rename from lib2/std/os/macos/cocoa.c3
rename to lib7/std/os/macos/cocoa.c3
diff --git a/lib2/std/os/macos/core_foundation.c3 b/lib7/std/os/macos/core_foundation.c3
similarity index 100%
rename from lib2/std/os/macos/core_foundation.c3
rename to lib7/std/os/macos/core_foundation.c3
diff --git a/lib2/std/os/macos/darwin.c3 b/lib7/std/os/macos/darwin.c3
similarity index 100%
rename from lib2/std/os/macos/darwin.c3
rename to lib7/std/os/macos/darwin.c3
diff --git a/lib2/std/os/macos/heap.c3 b/lib7/std/os/macos/heap.c3
similarity index 100%
rename from lib2/std/os/macos/heap.c3
rename to lib7/std/os/macos/heap.c3
diff --git a/lib2/std/os/macos/objc.c3 b/lib7/std/os/macos/objc.c3
similarity index 100%
rename from lib2/std/os/macos/objc.c3
rename to lib7/std/os/macos/objc.c3
diff --git a/lib2/std/os/posix/files.c3 b/lib7/std/os/posix/files.c3
similarity index 100%
rename from lib2/std/os/posix/files.c3
rename to lib7/std/os/posix/files.c3
diff --git a/lib2/std/os/posix/general.c3 b/lib7/std/os/posix/general.c3
similarity index 100%
rename from lib2/std/os/posix/general.c3
rename to lib7/std/os/posix/general.c3
diff --git a/lib2/std/os/posix/heap.c3 b/lib7/std/os/posix/heap.c3
similarity index 100%
rename from lib2/std/os/posix/heap.c3
rename to lib7/std/os/posix/heap.c3
diff --git a/lib2/std/os/posix/process.c3 b/lib7/std/os/posix/process.c3
similarity index 100%
rename from lib2/std/os/posix/process.c3
rename to lib7/std/os/posix/process.c3
diff --git a/lib2/std/os/posix/threads.c3 b/lib7/std/os/posix/threads.c3
similarity index 100%
rename from lib2/std/os/posix/threads.c3
rename to lib7/std/os/posix/threads.c3
diff --git a/lib2/std/os/subprocess.c3 b/lib7/std/os/subprocess.c3
similarity index 100%
rename from lib2/std/os/subprocess.c3
rename to lib7/std/os/subprocess.c3
diff --git a/lib2/std/os/win32/files.c3 b/lib7/std/os/win32/files.c3
similarity index 100%
rename from lib2/std/os/win32/files.c3
rename to lib7/std/os/win32/files.c3
diff --git a/lib2/std/os/win32/gdi.c3 b/lib7/std/os/win32/gdi.c3
similarity index 100%
rename from lib2/std/os/win32/gdi.c3
rename to lib7/std/os/win32/gdi.c3
diff --git a/lib2/std/os/win32/general.c3 b/lib7/std/os/win32/general.c3
similarity index 100%
rename from lib2/std/os/win32/general.c3
rename to lib7/std/os/win32/general.c3
diff --git a/lib2/std/os/win32/heap.c3 b/lib7/std/os/win32/heap.c3
similarity index 100%
rename from lib2/std/os/win32/heap.c3
rename to lib7/std/os/win32/heap.c3
diff --git a/lib2/std/os/win32/process.c3 b/lib7/std/os/win32/process.c3
similarity index 96%
rename from lib2/std/os/win32/process.c3
rename to lib7/std/os/win32/process.c3
index 7986388b2..05fe742ea 100644
--- a/lib2/std/os/win32/process.c3
+++ b/lib7/std/os/win32/process.c3
@@ -154,21 +154,21 @@ struct Symbol
 
 Win32_DWORD64 displacement;
 
-fn BacktraceList! symbolize_backtrace(void*[] backtrace, Allocator allocator)
+fn BacktraceList! symbolize_backtrace(Allocator allocator, void*[] backtrace)
 {
 	BacktraceList list;
-	list.new_init(backtrace.len, allocator);
+	list.init(allocator, backtrace.len);
 	Win32_HANDLE process = getCurrentProcess();
 	symInitialize(process, null, 1);
 	defer symCleanup(process);
 	foreach (addr : backtrace)
 	{
-		list.push(resolve_backtrace(addr, process, allocator) ?? backtrace::BACKTRACE_UNKNOWN);
+		list.push(resolve_backtrace(allocator, addr, process) ?? backtrace::BACKTRACE_UNKNOWN);
 	}
 	return list;
 }
 
-fn Backtrace! resolve_backtrace(void* addr, Win32_HANDLE process, Allocator allocator)
+fn Backtrace! resolve_backtrace(Allocator allocator, void* addr, Win32_HANDLE process)
 {
 	Symbol symbol;
 	//Win32_DWORD image_type = load_modules()!;
@@ -193,10 +193,10 @@ fn Backtrace! resolve_backtrace(void* addr, Win32_HANDLE process, Allocator allo
 	ZString zname = (ZString)&name;
 	if (!symGetLineFromAddr64(process, (Win32_ULONG64)addr - 1, &offset, &line))
 	{
-		backtrace.init((uptr)addr, zname.str_view(), module_name.str_view(), allocator: allocator);
+		backtrace.init(allocator, (uptr)addr, zname.str_view(), module_name.str_view());
 		return backtrace;
 	}
 	String filename = ((ZString)line.fileName).str_view();
-	backtrace.init((uptr)addr, zname.str_view(), module_name.str_view(), file: filename, line: line.lineNumber, allocator: allocator);
+	backtrace.init(allocator, (uptr)addr, zname.str_view(), module_name.str_view(), file: filename, line: line.lineNumber);
 	return backtrace;
 }
diff --git a/lib2/std/os/win32/types.c3 b/lib7/std/os/win32/types.c3
similarity index 100%
rename from lib2/std/os/win32/types.c3
rename to lib7/std/os/win32/types.c3
diff --git a/lib2/std/os/win32/wincon.c3 b/lib7/std/os/win32/wincon.c3
similarity index 100%
rename from lib2/std/os/win32/wincon.c3
rename to lib7/std/os/win32/wincon.c3
diff --git a/lib2/std/os/win32/windef.c3 b/lib7/std/os/win32/windef.c3
similarity index 100%
rename from lib2/std/os/win32/windef.c3
rename to lib7/std/os/win32/windef.c3
diff --git a/lib2/std/os/win32/winuser.c3 b/lib7/std/os/win32/winuser.c3
similarity index 100%
rename from lib2/std/os/win32/winuser.c3
rename to lib7/std/os/win32/winuser.c3
diff --git a/lib2/std/os/win32/ws2def.c3 b/lib7/std/os/win32/ws2def.c3
similarity index 100%
rename from lib2/std/os/win32/ws2def.c3
rename to lib7/std/os/win32/ws2def.c3
diff --git a/lib2/std/os/win32/wsa.c3 b/lib7/std/os/win32/wsa.c3
similarity index 100%
rename from lib2/std/os/win32/wsa.c3
rename to lib7/std/os/win32/wsa.c3
diff --git a/lib2/std/sort/binarysearch.c3 b/lib7/std/sort/binarysearch.c3
similarity index 100%
rename from lib2/std/sort/binarysearch.c3
rename to lib7/std/sort/binarysearch.c3
diff --git a/lib2/std/sort/countingsort.c3 b/lib7/std/sort/countingsort.c3
similarity index 100%
rename from lib2/std/sort/countingsort.c3
rename to lib7/std/sort/countingsort.c3
diff --git a/lib2/std/sort/insertionsort.c3 b/lib7/std/sort/insertionsort.c3
similarity index 100%
rename from lib2/std/sort/insertionsort.c3
rename to lib7/std/sort/insertionsort.c3
diff --git a/lib2/std/sort/quicksort.c3 b/lib7/std/sort/quicksort.c3
similarity index 100%
rename from lib2/std/sort/quicksort.c3
rename to lib7/std/sort/quicksort.c3
diff --git a/lib2/std/sort/sort.c3 b/lib7/std/sort/sort.c3
similarity index 100%
rename from lib2/std/sort/sort.c3
rename to lib7/std/sort/sort.c3
diff --git a/lib2/std/sort/sorted.c3 b/lib7/std/sort/sorted.c3
similarity index 100%
rename from lib2/std/sort/sorted.c3
rename to lib7/std/sort/sorted.c3
diff --git a/lib2/std/text/i18n.c3 b/lib7/std/text/i18n.c3
similarity index 100%
rename from lib2/std/text/i18n.c3
rename to lib7/std/text/i18n.c3
diff --git a/lib2/std/threads/buffered_channel.c3 b/lib7/std/threads/buffered_channel.c3
similarity index 100%
rename from lib2/std/threads/buffered_channel.c3
rename to lib7/std/threads/buffered_channel.c3
diff --git a/lib2/std/threads/event/event_thread.c3 b/lib7/std/threads/event/event_thread.c3
similarity index 100%
rename from lib2/std/threads/event/event_thread.c3
rename to lib7/std/threads/event/event_thread.c3
diff --git a/lib2/std/threads/fixed_pool.c3 b/lib7/std/threads/fixed_pool.c3
similarity index 100%
rename from lib2/std/threads/fixed_pool.c3
rename to lib7/std/threads/fixed_pool.c3
diff --git a/lib2/std/threads/os/cpu.c3 b/lib7/std/threads/os/cpu.c3
similarity index 100%
rename from lib2/std/threads/os/cpu.c3
rename to lib7/std/threads/os/cpu.c3
diff --git a/lib2/std/threads/os/thread_none.c3 b/lib7/std/threads/os/thread_none.c3
similarity index 100%
rename from lib2/std/threads/os/thread_none.c3
rename to lib7/std/threads/os/thread_none.c3
diff --git a/lib2/std/threads/os/thread_posix.c3 b/lib7/std/threads/os/thread_posix.c3
similarity index 100%
rename from lib2/std/threads/os/thread_posix.c3
rename to lib7/std/threads/os/thread_posix.c3
diff --git a/lib2/std/threads/os/thread_win32.c3 b/lib7/std/threads/os/thread_win32.c3
similarity index 100%
rename from lib2/std/threads/os/thread_win32.c3
rename to lib7/std/threads/os/thread_win32.c3
diff --git a/lib2/std/threads/pool.c3 b/lib7/std/threads/pool.c3
similarity index 100%
rename from lib2/std/threads/pool.c3
rename to lib7/std/threads/pool.c3
diff --git a/lib2/std/threads/thread.c3 b/lib7/std/threads/thread.c3
similarity index 100%
rename from lib2/std/threads/thread.c3
rename to lib7/std/threads/thread.c3
diff --git a/lib2/std/threads/unbuffered_channel.c3 b/lib7/std/threads/unbuffered_channel.c3
similarity index 100%
rename from lib2/std/threads/unbuffered_channel.c3
rename to lib7/std/threads/unbuffered_channel.c3
diff --git a/lib2/std/time/clock.c3 b/lib7/std/time/clock.c3
similarity index 100%
rename from lib2/std/time/clock.c3
rename to lib7/std/time/clock.c3
diff --git a/lib2/std/time/datetime.c3 b/lib7/std/time/datetime.c3
similarity index 100%
rename from lib2/std/time/datetime.c3
rename to lib7/std/time/datetime.c3
diff --git a/lib2/std/time/format.c3 b/lib7/std/time/format.c3
similarity index 100%
rename from lib2/std/time/format.c3
rename to lib7/std/time/format.c3
diff --git a/lib2/std/time/os/time_darwin.c3 b/lib7/std/time/os/time_darwin.c3
similarity index 100%
rename from lib2/std/time/os/time_darwin.c3
rename to lib7/std/time/os/time_darwin.c3
diff --git a/lib2/std/time/os/time_posix.c3 b/lib7/std/time/os/time_posix.c3
similarity index 100%
rename from lib2/std/time/os/time_posix.c3
rename to lib7/std/time/os/time_posix.c3
diff --git a/lib2/std/time/os/time_win32.c3 b/lib7/std/time/os/time_win32.c3
similarity index 100%
rename from lib2/std/time/os/time_win32.c3
rename to lib7/std/time/os/time_win32.c3
diff --git a/lib2/std/time/time.c3 b/lib7/std/time/time.c3
similarity index 100%
rename from lib2/std/time/time.c3
rename to lib7/std/time/time.c3
diff --git a/src/build/build_options.c b/src/build/build_options.c
index 857e00a1d..d66090630 100644
--- a/src/build/build_options.c
+++ b/src/build/build_options.c
@@ -1372,7 +1372,7 @@ static const char *check_dir(const char *path)
 {
 	char original_path[PATH_MAX + 1];
 	if (!getcwd(original_path, PATH_MAX)) error_exit("Failed to store path.");
-	if (!dir_change(path)) error_exit("The path \"%s\" does not point to a valid directory.", path);
+	if (!dir_change(path)) error_exit("The path \"%s\" does not point to a valid directory from '%s'.", path, original_path);
 	if (!dir_change(original_path)) FAIL_WITH_ERR("Failed to change path to %s.", original_path);
 	return path;
 }
diff --git a/test/src/test_suite_runner.c3 b/test/src/test_suite_runner.c3
index 00454be8d..39e795167 100644
--- a/test/src/test_suite_runner.c3
+++ b/test/src/test_suite_runner.c3
@@ -9,12 +9,13 @@ int success_count;
 Path start_cwd;
 Path test_dir;
 bool print_to_file;
+String stdlib;
 
 fn void main(String[] args)
 {
 	// Grab the name for `usage`
 	String appname = args[0];
-	if (args.len < 3 || args.len > 4) usage(appname);
+	if (args.len < 3) usage(appname);
 
 	// Do we want the print to file variant
 	print_to_file = !io::stdout().isatty();
@@ -37,8 +38,31 @@ fn void main(String[] args)
 	// Ok we're done.
 	compiler_path = path;
 
-	// Do we only run skipped? [Not implemented yet!]
-	bool only_skipped = args.len == 4;
+	bool only_skipped = false;
+	for (int i = 3; i < args.len; i++)
+	{
+		String arg = args[i];
+		switch (arg)
+		{
+			case "-s":
+			case "--skipped":
+				only_skipped = true;
+			case "--stdlib":
+				if (i == args.len - 1 || args[i + 1].starts_with("-"))
+				{
+					arg_error_exit(appname, "Expected --stdlib to be followed by the path to the alternative standard library.");
+				}
+				stdlib = args[i + 1];
+				i++;
+				if (!os::native_is_dir(stdlib))
+				{
+					error_exit(appname, "Stdlib directory '%s' cannot be found.", stdlib);
+				}
+				stdlib = start_cwd.temp_append(stdlib).str_view()!!;
+			default:
+				arg_error_exit(appname, "Unknown option '%s'.", args[i]);
+		}
+	}
 	if (only_skipped && args[3] != "-s" && args[3] != "--skipped") usage(appname);
 
 	// Get the directory or file to test
@@ -393,6 +417,12 @@ fn void test_file(Path file_path)
 	cmdline.push(compiler_path.str_view());
 	cmdline.push("compile-only");
 	cmdline.push("--test");
+	if (stdlib)
+	{
+		cmdline.push("--stdlib");
+		cmdline.push(stdlib);
+		cmdline.push("--enable-new-generics");
+	}
 	cmdline.push("--llvm-out");
 	cmdline.push(".");
 	foreach (file : settings.input_files)
@@ -498,10 +528,11 @@ fn void! test_path(Path file_path)
 
 fn void usage(String appname) @noreturn
 {
-    io::printfn("Usage: %s <compiler path> <file/dir> [-s]", appname);
+    io::printfn("Usage: %s <compiler path> <file/dir> [options]", appname);
     io::printn();
     io::printn("Options:");
     io::printn("  -s, --skipped       only run skipped tests");
+    io::printn("  --stdlib <path>     override the path to stdlib");
 	libc::exit(0);
 }
 
diff --git a/test/test_suite7/abi/aarch64_args.c3t b/test/test_suite7/abi/aarch64_args.c3t
new file mode 100644
index 000000000..2de1b44db
--- /dev/null
+++ b/test/test_suite7/abi/aarch64_args.c3t
@@ -0,0 +1,29 @@
+// #target: macos-aarch64
+module test;
+
+struct Large {
+    void*[8] pointers;
+}
+
+extern fn void pass_large(Large);
+
+fn void example() {
+    Large l = {};
+    pass_large(l);
+    pass_large(l);
+}
+
+/* #expect: test.ll
+
+define void @test.example() #0 {
+entry:
+  %l = alloca %Large, align 8
+  %indirectarg = alloca %Large, align 8
+  %indirectarg1 = alloca %Large, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %l, i8 0, i64 64, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 8 %l, i32 64, i1 false)
+  call void @pass_large(ptr align 8 %indirectarg)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg1, ptr align 8 %l, i32 64, i1 false)
+  call void @pass_large(ptr align 8 %indirectarg1)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/aarch64_hfa_args.c3t b/test/test_suite7/abi/aarch64_hfa_args.c3t
new file mode 100644
index 000000000..cc9311c92
--- /dev/null
+++ b/test/test_suite7/abi/aarch64_hfa_args.c3t
@@ -0,0 +1,32 @@
+// #target: macos-aarch64
+module test;
+def Int8x16 = ichar[<16>];
+def Float32x3 = float[<3>];
+
+struct HFAv3
+{
+    Float32x3[4] arr;
+}
+
+struct MixedHFAv3
+{
+    Float32x3[3] arr;
+    Int8x16 b;
+}
+
+fn HFAv3 test(HFAv3 a0, HFAv3 a1, HFAv3 a2) {
+  return a2;
+}
+
+fn MixedHFAv3 test_mixed(MixedHFAv3 a0, MixedHFAv3 a1, MixedHFAv3 a2) {
+  return a2;
+}
+
+/* #expect: test.ll
+
+
+%HFAv3 = type { [4 x <3 x float>] }
+%MixedHFAv3 = type { [3 x <3 x float>], <16 x i8> }
+
+define %HFAv3 @test.test([4 x <4 x float>] %0, [4 x <4 x float>] %1, [4 x <4 x float>] %2)
+define %MixedHFAv3 @test.test_mixed([4 x <4 x float>] %0, [4 x <4 x float>] %1, [4 x <4 x float>] %2) #0 {
diff --git a/test/test_suite7/abi/aarch_ret_small_struct.c3t b/test/test_suite7/abi/aarch_ret_small_struct.c3t
new file mode 100644
index 000000000..cf6ce3cad
--- /dev/null
+++ b/test/test_suite7/abi/aarch_ret_small_struct.c3t
@@ -0,0 +1,45 @@
+// #target: macos-aarch64
+module test;
+import std;
+
+extern fn Features query_features() @extern("sg_query_features");
+extern fn void set_features(Features);
+
+struct Features
+{
+    bool origin_top_left;
+    bool image_clamp_to_border;
+    bool mrt_independent_blend_state;
+    bool mrt_independent_write_mask;
+    bool storage_buffer;
+}
+
+fn void main()
+{
+    Features fs = query_features();
+    fs.storage_buffer = false;
+    set_features(fs);
+}
+/* #expect: test.ll
+
+declare i40 @sg_query_features() #0
+
+declare void @set_features(i64) #0
+
+define void @test.main() #0 {
+entry:
+  %fs = alloca %Features, align 1
+  %result = alloca %Features, align 1
+  %tempcoerce = alloca i40, align 8
+  %tempcoerce1 = alloca i64, align 8
+  %0 = call i40 @sg_query_features()
+  store i40 %0, ptr %tempcoerce, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %result, ptr align 8 %tempcoerce, i32 5, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %fs, ptr align 1 %result, i32 5, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %fs, i64 4
+  store i8 0, ptr %ptradd, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tempcoerce1, ptr align 1 %fs, i32 5, i1 false)
+  %1 = load i64, ptr %tempcoerce1, align 8
+  call void @set_features(i64 %1)
+  ret void
+}
diff --git a/test/test_suite7/abi/avx512fp16-abi.c3t b/test/test_suite7/abi/avx512fp16-abi.c3t
new file mode 100644
index 000000000..50a76a70e
--- /dev/null
+++ b/test/test_suite7/abi/avx512fp16-abi.c3t
@@ -0,0 +1,166 @@
+// #target: macos-x64
+// #opt: --x86cpu=avx512
+module abi;
+
+struct Half1 {
+  float16 a;
+}
+
+fn Half1 h1(float16 a) {
+  Half1 x;
+  x.a = a;
+  return x;
+}
+
+struct Half2 {
+  float16 a;
+  float16 b;
+}
+
+fn Half2 h2(float16 a, float16 b) {
+  Half2 x;
+  x.a = a;
+  x.b = b;
+  return x;
+}
+
+struct Half3 {
+  float16 a;
+  float16 b;
+  float16 c;
+}
+
+fn Half3 h3(float16 a, float16 b, float16 c) {
+  // CHECK: define{{.*}}<4 x half> @
+  Half3 x;
+  x.a = a;
+  x.b = b;
+  x.c = c;
+  return x;
+}
+
+struct Half4 {
+  float16 a;
+  float16 b;
+  float16 c;
+  float16 d;
+}
+
+fn Half4 h4(float16 a, float16 b, float16 c, float16 d) {
+  Half4 x;
+  x.a = a;
+  x.b = b;
+  x.c = c;
+  x.d = d;
+  return x;
+}
+
+struct Floathalf {
+  float a;
+  float16 b;
+}
+
+fn Floathalf fh(float a, float16 b) {
+  Floathalf x;
+  x.a = a;
+  x.b = b;
+  return x;
+}
+
+struct Floathalf2 {
+  float a;
+  float16 b;
+  float16 c;
+}
+
+fn Floathalf2 fh2(float a, float16 b, float16 c) {
+  Floathalf2 x;
+  x.a = a;
+  x.b = b;
+  x.c = c;
+  return x;
+}
+
+struct Halffloat {
+  float16 a;
+  float b;
+}
+
+fn Halffloat hf(float16 a, float b) {
+  Halffloat x;
+  x.a = a;
+  x.b = b;
+  return x;
+}
+
+struct Half2float {
+  float16 a;
+  float16 b;
+  float c;
+}
+
+fn Half2float h2f(float16 a, float16 b, float c) {
+  Half2float x;
+  x.a = a;
+  x.b = b;
+  x.c = c;
+  return x;
+}
+
+struct Floathalf3 {
+  float a;
+  float16 b;
+  float16 c;
+  float16 d;
+}
+
+fn Floathalf3 fh3(float a, float16 b, float16 c, float16 d) {
+  Floathalf3 x;
+  x.a = a;
+  x.b = b;
+  x.c = c;
+  x.d = d;
+  return x;
+}
+
+struct Half5 {
+  float16 a;
+  float16 b;
+  float16 c;
+  float16 d;
+  float16 e;
+}
+
+fn Half5 h5(float16 a, float16 b, float16 c, float16 d, float16 e) {
+  Half5 x;
+  x.a = a;
+  x.b = b;
+  x.c = c;
+  x.d = d;
+  x.e = e;
+  return x;
+}
+
+/* #expect: abi.ll
+
+%Half1 = type { half }
+%Half2 = type { half, half }
+%Half3 = type { half, half, half }
+%Half4 = type { half, half, half, half }
+%Floathalf = type { float, half }
+%Floathalf2 = type { float, half, half }
+%Halffloat = type { half, float }
+%Half2float = type { half, half, float }
+%Floathalf3 = type { float, half, half, half }
+%Half5 = type { half, half, half, half, half }
+
+define half @abi.h1(half %0)
+define <2 x half> @abi.h2(half %0, half %1)
+define <4 x half> @abi.h3(half %0, half %1, half %2)
+define <4 x half> @abi.h4(half %0, half %1, half %2, half %3)
+define <4 x half> @abi.fh(float %0, half %1)
+define <4 x half> @abi.fh2(float %0, half %1, half %2)
+define <4 x half> @abi.hf(half %0, float %1)
+define <4 x half> @abi.h2f(half %0, half %1, float %2) #0 {
+define { <4 x half>, half } @abi.fh3(float %0, half %1, half %2, half %3) #0 {
+define { <4 x half>, half } @abi.h5(half %0, half %1, half %2, half %3, half %4) #0 {
diff --git a/test/test_suite7/abi/darwin64_avx.c3t b/test/test_suite7/abi/darwin64_avx.c3t
new file mode 100644
index 000000000..66f0e7d09
--- /dev/null
+++ b/test/test_suite7/abi/darwin64_avx.c3t
@@ -0,0 +1,264 @@
+// #target: macos-x64
+// #opt: --x86cpu=avx1
+module test;
+
+def Mm256 = float[<8>];
+struct St256
+{
+    Mm256 m;
+}
+
+St256 x38;
+Mm256 x37;
+
+extern fn void f38(St256 x);
+extern fn void f37(Mm256 x);
+fn void f39() { f38(x38); f37(x37); }
+
+// The two next tests make sure that the struct below is passed
+// in the same way regardless of avx being used
+
+// CHECK: declare void @func40(%struct.t128* byval(%struct.t128) align 16)
+
+def Mm128 = float[<4>];
+struct Two128
+{
+	Mm128 m;
+	Mm128 n;
+}
+
+extern fn void func40(Two128 s);
+fn void func41(Two128 s)
+{
+    func40(s);
+}
+
+struct Atwo128
+{
+	Mm128[2] array;
+}
+
+struct Sa {
+  Atwo128 x;
+}
+
+extern fn void func42(Sa s);
+fn void func43(Sa s) {
+  func42(s);
+}
+
+
+def Vec46 = float[<2>];
+extern fn void f46(Vec46,Vec46,Vec46,Vec46,Vec46,Vec46,Vec46,Vec46,Vec46,Vec46);
+fn void test46() { Vec46 x = {1,2}; f46(x,x,x,x,x,x,x,x,x,x); }
+
+struct Vec47 { uint a; }
+extern fn void f47(int,int,int,int,int,int,Vec47);
+fn void test47(int a, Vec47 b) { f47(a, a, a, a, a, a, b); }
+
+extern fn void test49_helper(double, ...);
+fn void test49(double d, double e) { test49_helper(d, e); }
+
+struct Complex { double i; double c; }
+extern fn void test52_helper(int, ...);
+Mm256 x52;
+fn void test52() {
+  test52_helper(0, x52, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, (Complex) { 0, 1.0 });
+}
+
+extern fn void test54_helper(Mm256, ...);
+Mm256 x54;
+fn void test54() {
+  test54_helper(x54, x54, 1.0, 1.0, 1.0, 1.0, 1.0, (Complex) { 0, 1.0 });
+  test54_helper(x54, x54, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, (Complex) { 0, 1.0 });
+}
+
+def Mm512 = float[<16>];
+struct St512 {
+  Mm512 m;
+}
+
+St512 x55;
+Mm512 x56;
+
+extern fn void f55(St512 x);
+
+extern fn void f56(Mm512 x);
+fn void f57() { f55(x55); f56(x56); }
+
+struct Two256 {
+  Mm256 m;
+  Mm256 n;
+}
+
+extern fn void f58(Two256 s);
+fn void f59(Two256 s) {
+  f58(s);
+}
+
+struct Atwo256 {
+  Mm256[2] array;
+}
+
+struct SAtwo256 {
+  Atwo256 x;
+}
+
+extern fn void f60(SAtwo256 s);
+fn void f61(SAtwo256 s) {
+  f60(s);
+}
+
+
+/* #expect: test.ll
+
+
+declare void @f38(<8 x float>) #0
+
+; Function Attrs:
+declare void @f37(<8 x float>) #0
+
+; Function Attrs:
+define void @test.f39() #0 {
+entry:
+  %0 = load <8 x float>, ptr @test.x38, align 32
+  call void @f38(<8 x float> %0)
+  %1 = load <8 x float>, ptr @test.x37, align 32
+  call void @f37(<8 x float> %1)
+  ret void
+}
+
+; Function Attrs:
+declare void @func40(ptr byval(%Two128) align 16) #0
+
+; Function Attrs:
+define void @test.func41(ptr byval(%Two128) align 16 %0) #0 {
+entry:
+  call void @func40(ptr byval(%Two128) align 16 %0)
+  ret void
+}
+
+; Function Attrs:
+declare void @func42(ptr byval(%Sa) align 16) #0
+
+; Function Attrs:
+define void @test.func43(ptr byval(%Sa) align 16 %0) #0 {
+entry:
+  call void @func42(ptr byval(%Sa) align 16 %0)
+  ret void
+}
+
+; Function Attrs:
+declare void @f46(double, double, double, double, double, double, double, double, ptr byval(<2 x float>) align 8, ptr byval(<2 x float>) align 8) #0
+
+; Function Attrs:
+define void @test.test46() #0 {
+entry:
+  %x = alloca <2 x float>, align 8
+  store <2 x float> <float 1.000000e+00, float 2.000000e+00>, ptr %x, align 8
+  %0 = load double, ptr %x, align 8
+  %1 = load double, ptr %x, align 8
+  %2 = load double, ptr %x, align 8
+  %3 = load double, ptr %x, align 8
+  %4 = load double, ptr %x, align 8
+  %5 = load double, ptr %x, align 8
+  %6 = load double, ptr %x, align 8
+  %7 = load double, ptr %x, align 8
+  call void @f46(double %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, ptr byval(<2 x float>) align 8 %x, ptr byval(<2 x float>) align 8 %x)
+  ret void
+}
+
+; Function Attrs:
+declare void @f47(i32, i32, i32, i32, i32, i32, i32) #0
+
+; Function Attrs:
+define void @test.test47(i32 %0, i32 %1) #0 {
+entry:
+  %b = alloca %Vec47, align 4
+  store i32 %1, ptr %b, align 4
+  %2 = load i32, ptr %b, align 4
+  call void @f47(i32 %0, i32 %0, i32 %0, i32 %0, i32 %0, i32 %0, i32 %2)
+  ret void
+}
+
+; Function Attrs:
+declare void @test49_helper(double, ...) #0
+
+; Function Attrs:
+define void @test.test49(double %0, double %1) #0 {
+entry:
+  call void (double, ...) @test49_helper(double %0, double %1)
+  ret void
+}
+
+; Function Attrs:
+declare void @test52_helper(i32, ...) #0
+
+; Function Attrs:
+define void @test.test52() #0 {
+entry:
+  %literal = alloca %Complex, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 16, i1 false)
+  %0 = load <8 x float>, ptr @test.x52, align 32
+  %lo = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %hi = load double, ptr %ptradd, align 8
+  call void (i32, ...) @test52_helper(i32 0, <8 x float> %0, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double %lo, double %hi)
+  ret void
+}
+
+; Function Attrs:
+declare void @test54_helper(<8 x float>, ...) #0
+
+; Function Attrs:
+define void @test.test54() #0 {
+entry:
+  %literal = alloca %Complex, align 8
+  %literal1 = alloca %Complex, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.6, i32 16, i1 false)
+  %0 = load <8 x float>, ptr @test.x54, align 32
+  %1 = load <8 x float>, ptr @test.x54, align 32
+  %lo = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %hi = load double, ptr %ptradd, align 8
+  call void (<8 x float>, ...) @test54_helper(<8 x float> %0, <8 x float> %1, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double %lo, double %hi)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal1, ptr align 8 @.__const.7, i32 16, i1 false)
+  %2 = load <8 x float>, ptr @test.x54, align 32
+  %3 = load <8 x float>, ptr @test.x54, align 32
+  call void (<8 x float>, ...) @test54_helper(<8 x float> %2, <8 x float> %3, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, ptr byval(%Complex) align 8 %literal1)
+  ret void
+}
+
+; Function Attrs:
+declare void @f55(ptr byval(%St512) align 64) #0
+
+; Function Attrs:
+declare void @f56(ptr byval(<16 x float>) align 64) #0
+
+; Function Attrs:
+define void @test.f57() #0 {
+entry:
+  call void @f55(ptr byval(%St512) align 64 @test.x55)
+  call void @f56(ptr byval(<16 x float>) align 64 @test.x56)
+  ret void
+}
+
+; Function Attrs:
+declare void @f58(ptr byval(%Two256) align 32) #0
+
+; Function Attrs:
+define void @test.f59(ptr byval(%Two256) align 32 %0) #0 {
+entry:
+  call void @f58(ptr byval(%Two256) align 32 %0)
+  ret void
+}
+
+; Function Attrs:
+declare void @f60(ptr byval(%SAtwo256) align 32) #0
+
+; Function Attrs:
+define void @test.f61(ptr byval(%SAtwo256) align 32 %0) #0 {
+entry:
+  call void @f60(ptr byval(%SAtwo256) align 32 %0)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/darwin64_avx512.c3t b/test/test_suite7/abi/darwin64_avx512.c3t
new file mode 100644
index 000000000..367c4bbd9
--- /dev/null
+++ b/test/test_suite7/abi/darwin64_avx512.c3t
@@ -0,0 +1,133 @@
+// #target: macos-x64
+// #opt: --x86cpu=avx512
+module test;
+
+def Mm256 = float[<8>];
+def Mm512 = float[<16>];
+struct St512 {
+  Mm512 m;
+}
+
+St512 x55;
+Mm512 x56;
+
+extern fn void f55(St512 x);
+
+extern fn void f56(Mm512 x);
+fn void f57() { f55(x55); f56(x56); }
+
+struct Two256 {
+  Mm256 m;
+  Mm256 n;
+}
+
+extern fn void f58(Two256 s);
+fn void f59(Two256 s) {
+  f58(s);
+}
+
+struct Atwo256 {
+  Mm256[2] array;
+}
+
+struct SAtwo256 {
+  Atwo256 x;
+}
+
+extern fn void f60(SAtwo256 s);
+fn void f61(SAtwo256 s) {
+  f60(s);
+}
+
+struct Complex { double i; double c; }
+
+// AVX512: @f62_helper(i32 0, <16 x float> {{%[a-zA-Z0-9]+}}, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double {{%[a-zA-Z0-9]+}}, double {{%[a-zA-Z0-9]+}})
+extern fn void f62_helper(int, ...);
+Mm512 x62;
+fn void f62() {
+  f62_helper(0, x62, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, (Complex) { 1.0, 1.0 });
+}
+
+extern fn void f64_helper(Mm512, ...);
+Mm512 x64;
+fn void f64() {
+  f64_helper(x64, x64, 1.0, 1.0, 1.0, 1.0, 1.0, (Complex) { 1.0, 1.0 });
+  f64_helper(x64, x64, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, (Complex) { 1.0, 1.0 });
+}
+
+
+/* #expect: test.ll
+
+
+declare void @f55(<16 x float>) #0
+
+; Function Attrs:
+declare void @f56(<16 x float>) #0
+
+; Function Attrs:
+define void @test.f57() #0 {
+entry:
+  %0 = load <16 x float>, ptr @test.x55, align 64
+  call void @f55(<16 x float> %0)
+  %1 = load <16 x float>, ptr @test.x56, align 64
+  call void @f56(<16 x float> %1)
+  ret void
+}
+
+; Function Attrs:
+declare void @f58(ptr byval(%Two256) align 32) #0
+
+; Function Attrs:
+define void @test.f59(ptr byval(%Two256) align 32 %0) #0 {
+entry:
+  call void @f58(ptr byval(%Two256) align 32 %0)
+  ret void
+}
+
+; Function Attrs:
+declare void @f60(ptr byval(%SAtwo256) align 32) #0
+
+; Function Attrs:
+define void @test.f61(ptr byval(%SAtwo256) align 32 %0) #0 {
+entry:
+  call void @f60(ptr byval(%SAtwo256) align 32 %0)
+  ret void
+}
+
+; Function Attrs:
+declare void @f62_helper(i32, ...) #0
+
+; Function Attrs:
+define void @test.f62() #0 {
+entry:
+  %literal = alloca %Complex, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 16, i1 false)
+  %0 = load <16 x float>, ptr @test.x62, align 64
+  %lo = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %hi = load double, ptr %ptradd, align 8
+  call void (i32, ...) @f62_helper(i32 0, <16 x float> %0, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double %lo, double %hi)
+  ret void
+}
+
+; Function Attrs:
+declare void @f64_helper(<16 x float>, ...) #0
+
+; Function Attrs:
+define void @test.f64() #0 {
+entry:
+  %literal = alloca %Complex, align 8
+  %literal1 = alloca %Complex, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.4, i32 16, i1 false)
+  %0 = load <16 x float>, ptr @test.x64, align 64
+  %1 = load <16 x float>, ptr @test.x64, align 64
+  %lo = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %hi = load double, ptr %ptradd, align 8
+  call void (<16 x float>, ...) @f64_helper(<16 x float> %0, <16 x float> %1, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double %lo, double %hi)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal1, ptr align 8 @.__const.5, i32 16, i1 false)
+  %2 = load <16 x float>, ptr @test.x64, align 64
+  %3 = load <16 x float>, ptr @test.x64, align 64
+  call void (<16 x float>, ...) @f64_helper(<16 x float> %2, <16 x float> %3, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, ptr byval(%Complex) align 8 %literal1)
+  ret void
+}
diff --git a/test/test_suite7/abi/darwin64_sret.c3t b/test/test_suite7/abi/darwin64_sret.c3t
new file mode 100644
index 000000000..29bd6d7a6
--- /dev/null
+++ b/test/test_suite7/abi/darwin64_sret.c3t
@@ -0,0 +1,19 @@
+// #target: macos-x64
+module foo;
+
+struct SimdDouble4x4
+{
+	double[<4>][4] columns;
+}
+
+fn SimdDouble4x4 ident(SimdDouble4x4 x) {
+  return x;
+}
+
+/* #expect: foo.ll
+
+define void @foo.ident(ptr noalias sret(%SimdDouble4x4) align 32 %0, ptr byval(%SimdDouble4x4) align 32 %1) #0 {
+entry:
+  call void @llvm.memcpy.p0.p0.i32(ptr align 32 %0, ptr align 32 %1, i32 128, i1 false)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/darwin64_sse.c3t b/test/test_suite7/abi/darwin64_sse.c3t
new file mode 100644
index 000000000..67d9f7b43
--- /dev/null
+++ b/test/test_suite7/abi/darwin64_sse.c3t
@@ -0,0 +1,56 @@
+// #target: macos-x64
+// #opt: --x86cpu=sse4
+module test;
+
+def Mm256 = float[<8>];
+struct St256 {
+  Mm256 m;
+}
+
+St256 x38;
+Mm256 x37;
+
+extern fn void f38(St256 x);
+extern fn void f37(Mm256 x);
+fn void f39() { f38(x38); f37(x37); }
+
+// The two next tests make sure that the struct below is passed
+// in the same way regardless of avx being used
+
+// CHECK: declare void @func40(%struct.t128* byval(%struct.t128) align 16)
+
+def Mm128 = float[<4>];
+struct Two128 {
+  Mm128 m;
+  Mm128 n;
+}
+
+extern fn void func40(Two128 s);
+fn void func41(Two128 s) {
+  func40(s);
+}
+
+struct Atwo128 {
+  Mm128[2] array;
+}
+
+struct Sa {
+  Atwo128 x;
+}
+
+extern fn void func42(Sa s);
+fn void func43(Sa s) {
+  func42(s);
+}
+
+
+/* #expect: test.ll
+
+declare void @f38(ptr byval(%St256) align 32)
+declare void @f37(ptr byval(<8 x float>) align 32)
+
+declare void @func40(ptr byval(%Two128) align 16)
+define void @test.func41(ptr byval(%Two128) align 16 %0)
+
+declare void @func42(ptr byval(%Sa) align 16)
+define void @test.func43(ptr byval(%Sa) align 16 %0)
diff --git a/test/test_suite7/abi/darwin_arg.c3t b/test/test_suite7/abi/darwin_arg.c3t
new file mode 100644
index 000000000..6f71ab845
--- /dev/null
+++ b/test/test_suite7/abi/darwin_arg.c3t
@@ -0,0 +1,25 @@
+// #target: macos-x64
+module test;
+struct Str
+{
+	union
+	{
+		float128 a;
+		long c;
+	}
+}
+
+extern fn void d(Str s);
+Str ss;
+fn void f9122143()
+{
+  d(ss);
+}
+
+/* #expect: test.ll
+
+declare void @d(i64, double) #0
+
+  %lo = load i64, ptr @test.ss, align 16
+  %hi = load double, ptr getelementptr inbounds (i8, ptr @test.ss, i64 8), align 8
+  call void @d(i64 %lo, double %hi)
diff --git a/test/test_suite7/abi/darwin_return_boolarray.c3t b/test/test_suite7/abi/darwin_return_boolarray.c3t
new file mode 100644
index 000000000..dbf7ace3c
--- /dev/null
+++ b/test/test_suite7/abi/darwin_return_boolarray.c3t
@@ -0,0 +1,18 @@
+// #target: macos-x64
+module test;
+
+fn bool[2] get() { return { false, false }; }
+
+/* #expect: test.ll
+
+source_filename = "test"
+target datalayout = "e-m:o-p270:32:32-p271:32
+target triple = "x86_64-apple
+@.__const = private unnamed_addr constant [2 x i8] zeroinitializer, align 1
+define i16 @test.get() #0 {
+entry:
+  %literal = alloca [2 x i8], align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const, i32 2, i1 false)
+  %0 = load i16, ptr %literal, align 1
+  ret i16 %0
+}
diff --git a/test/test_suite7/abi/darwinx64_1.c3t b/test/test_suite7/abi/darwinx64_1.c3t
new file mode 100644
index 000000000..7b75cffed
--- /dev/null
+++ b/test/test_suite7/abi/darwinx64_1.c3t
@@ -0,0 +1,51 @@
+// #target: macos-x64
+module test;
+
+fn char f0()
+{
+  return 0;
+}
+
+fn short f1()
+{
+  return 0;
+}
+
+fn int f2()
+{
+  return 0;
+}
+
+fn float f3() {
+  return 0;
+}
+
+fn double f4() {
+  return 0;
+}
+
+fn void f6(char a0, short a1, int a2, long a3, void *a4) {}
+
+enum Enum7 : int { A, B, C }
+fn void f7(Enum7 a0) {}
+
+struct Struct8
+{
+  int a;
+  int b;
+}
+
+fn Struct8 f8_1() { while (0) {} return (Struct8) {}; }
+fn void f8_2(Struct8 a0) {}
+
+/* #expect: test.ll
+
+define zeroext i8 @test.f0()
+define signext i16 @test.f1()
+define i32 @test.f2()
+define float @test.f3()
+define double @test.f4()
+define void @test.f6(i8 zeroext %0, i16 signext %1, i32 %2, i64 %3, ptr %4)
+define void @test.f7(i32 %0)
+define i64 @test.f8_1()
+define void @test.f8_2(i64 %0) #0 {
diff --git a/test/test_suite7/abi/darwinx64_2.c3t b/test/test_suite7/abi/darwinx64_2.c3t
new file mode 100644
index 000000000..efc2d5f5a
--- /dev/null
+++ b/test/test_suite7/abi/darwinx64_2.c3t
@@ -0,0 +1,180 @@
+// #target: macos-x64
+module test;
+import std;
+
+struct St12
+{
+    int a @align(16);
+}
+fn St12 f12_0() { while (1) {} }
+fn void f12_1(St12 a0) {}
+
+struct St13_0 { long[3] f0; }
+struct St13_1 { long[2] f0; }
+fn St13_0 f13(int a, int b, int c, int d,
+                 St13_1 e, int f) { while (1) {} }
+
+fn void f14(int a, int b, int c, int d, int e, int f, ichar x) {}
+
+fn void f15(int a, int b, int c, int d, int e, int f, void *x) {}
+
+fn void f16(float a, float b, float c, float d, float e, float f, float g, float h,
+         float x) {}
+
+struct Fl18_s0 { int f0; }
+fn void fl18(int a, Fl18_s0 f18_arg1) { while (1) {} }
+
+struct St20 @align(32) {
+  int x;
+  int y;
+}
+fn void f20(St20 x) {}
+
+struct StringRef
+{
+  int x;
+  char* ptr;
+}
+fn char *f21(StringRef s) { return s.x+s.ptr; }
+
+struct St22s @align(16)
+{ ulong[2] x; }
+fn void f22(St22s x, St22s y) { }
+
+
+
+struct St23S {
+  short f0;
+  uint f1;
+  int f2;
+}
+
+
+fn void f23(int a, St23S b) {
+}
+
+struct St24s { int a; int b; }
+
+fn St23S f24(St23S *x, St24s *p2)
+{
+  return *x;
+
+}
+
+fn float[<4>] f25(float[<4>] x) {
+  return x+x;
+}
+
+struct Foo26 {
+  int *x;
+  float *y;
+}
+
+fn Foo26 f26(Foo26 *p) {
+  return *p;
+}
+
+
+struct V4f32wrapper {
+  float[<4>] v;
+}
+
+fn V4f32wrapper f27(V4f32wrapper x) {
+  return x;
+}
+
+// PR22563 - We should unwrap simple structs and arrays to pass
+// and return them in the appropriate vector registers if possible.
+
+def V8f32 = float[<8>];
+struct V8f32wrapper {
+  V8f32 v;
+}
+
+fn V8f32wrapper f27a(V8f32wrapper x) {
+  return x;
+}
+
+struct V8f32wrapper_wrapper {
+  V8f32[1] v;
+}
+
+fn V8f32wrapper_wrapper f27b(V8f32wrapper_wrapper x) {
+  return x;
+}
+
+struct F28c {
+  double x;
+  int y;
+}
+fn void f28(F28c c) {
+}
+
+struct Inner
+{
+    double x;
+    int y;
+}
+struct F29a
+{
+  Inner[1] c;
+}
+
+fn void f29a(F29a a) {
+}
+
+struct St0 {
+    char[8] f0; char f2; char f3; char f4; }
+fn void f30(St0 p_4) {
+}
+
+struct F31foo { float a, b, c; }
+fn float f31(F31foo x) {
+  return x.c;
+}
+
+def V1i64 = ulong[<1>];
+
+fn V1i64 f34(V1i64 arg) { return arg; }
+
+
+def V1i64_2 = uint[<2>];
+fn V1i64_2 f35(V1i64_2 arg) { return arg+arg; }
+
+def V2i32 = float[<2>];
+fn V2i32 f36(V2i32 arg) { return arg; }
+
+
+/* #expect: test.ll
+
+define i32 @test.f12_0()
+define void @test.f12_1(i32 %0)
+define void @test.f13(ptr noalias sret(%St13_0) align 8 %0, i32 %1, i32 %2, i32 %3, i32 %4, ptr byval(%St13_1) align 8 %5, i32 %6) #0 {
+define void @test.f14(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i8 signext %6) #0 {
+define void @test.f15(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, ptr %6)
+define void @test.f16(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, float %8)
+define void @test.fl18(i32 %0, i32 %1)
+define void @test.f20(ptr byval(%St20) align 32 %0)
+define ptr @test.f21(i32 %0, ptr %1)
+define void @test.f22(i64 %0, i64 %1, i64 %2, i64 %3)
+entry:
+  %x = alloca %St22s, align 16
+  %y = alloca %St22s, align 16
+define void @test.f23(i32 %0, i64 %1, i32 %2)
+define { i64, i32 } @test.f24(ptr %0, ptr %1)
+define <4 x float> @test.f25(<4 x float> %0) #0 {
+entry:
+  %fadd = fadd <4 x float> %0, %0
+  ret <4 x float> %fadd
+}
+define { ptr, ptr } @test.f26(ptr %0)
+define <4 x float> @test.f27(<4 x float> %0)
+define <8 x float> @test.f27a(<8 x float> %0)
+define <8 x float> @test.f27b(<8 x float> %0)
+define void @test.f28(double %0, i32 %1)
+define void @test.f29a(double %0, i32 %1)
+define void @test.f30(i64 %0, i24 %1)
+define float @test.f31(<2 x float> %0, float %1)
+define double @test.f34(double %0)
+define double @test.f35(double %0)
+define double @test.f36(double %0)
\ No newline at end of file
diff --git a/test/test_suite7/abi/linking_extern.c3t b/test/test_suite7/abi/linking_extern.c3t
new file mode 100644
index 000000000..231fdae30
--- /dev/null
+++ b/test/test_suite7/abi/linking_extern.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module abc;
+extern fn void puts(char*);
+macro void test()
+{
+	puts("b");
+}
+module test;
+import abc;
+extern fn void puts(char*);
+fn void main()
+{
+	puts("a");
+	abc::test();
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  call void @puts(ptr @.str)
+  call void @puts(ptr @.str.1)
+  ret void
+}
diff --git a/test/test_suite7/abi/literal_load.c3t b/test/test_suite7/abi/literal_load.c3t
new file mode 100644
index 000000000..66a71f63b
--- /dev/null
+++ b/test/test_suite7/abi/literal_load.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+
+struct Test
+{
+    int x;
+}
+
+Test foo = {};
+
+extern fn void blorg(Test t);
+
+fn Test creator()
+{
+    blorg((Test){});
+    return (Test){};
+}
+
+/* #expect: literal_load.ll
+
+define i32 @literal_load.creator() #0 {
+entry:
+  %literal = alloca %Test, align 4
+  %literal1 = alloca %Test, align 4
+  store i32 0, ptr %literal, align 4
+  %0 = load i32, ptr %literal, align 4
+  call void @blorg(i32 %0)
+  store i32 0, ptr %literal1, align 4
+  %1 = load i32, ptr %literal1, align 4
+  ret i32 %1
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/literal_load_aarch64.c3t b/test/test_suite7/abi/literal_load_aarch64.c3t
new file mode 100644
index 000000000..d2ca84e40
--- /dev/null
+++ b/test/test_suite7/abi/literal_load_aarch64.c3t
@@ -0,0 +1,34 @@
+// #target: linux-aarch64
+module literal_load;
+
+struct Test
+{
+    int x;
+}
+
+Test foo = {};
+
+extern fn void blorg(Test t);
+
+fn Test creator()
+{
+    blorg((Test){});
+    return (Test){};
+}
+
+/* #expect: literal_load.ll
+
+declare void @blorg(i64) #0
+
+define i32 @literal_load.creator() #0 {
+entry:
+  %literal = alloca %Test, align 4
+  %literal1 = alloca %Test, align 4
+  store i32 0, ptr %literal, align 4
+  %0 = load i32, ptr %literal, align 4
+  %1 = zext i32 %0 to i64
+  call void @blorg(i64 %1)
+  store i32 0, ptr %literal1, align 4
+  %2 = load i32, ptr %literal1, align 4
+  ret i32 %2
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/literal_load_mingw.c3t b/test/test_suite7/abi/literal_load_mingw.c3t
new file mode 100644
index 000000000..291540b49
--- /dev/null
+++ b/test/test_suite7/abi/literal_load_mingw.c3t
@@ -0,0 +1,31 @@
+// #target: mingw-x64
+module literal_load;
+
+struct Test
+{
+    int x;
+}
+
+Test foo = {};
+
+extern fn void blorg(Test t);
+
+fn Test creator()
+{
+    blorg((Test){});
+    return (Test){};
+}
+
+/* #expect: literal_load.ll
+
+define i32 @literal_load.creator() #0 {
+entry:
+  %literal = alloca %Test, align 4
+  %literal1 = alloca %Test, align 4
+  store i32 0, ptr %literal, align 4
+  %0 = load i32, ptr %literal, align 4
+  call void @blorg(i32 %0)
+  store i32 0, ptr %literal1, align 4
+  %1 = load i32, ptr %literal1, align 4
+  ret i32 %1
+}
diff --git a/test/test_suite7/abi/macho_section.c3t b/test/test_suite7/abi/macho_section.c3t
new file mode 100644
index 000000000..49c5e75d4
--- /dev/null
+++ b/test/test_suite7/abi/macho_section.c3t
@@ -0,0 +1,15 @@
+// #target: macos-x64
+module test;
+
+int z @section("__TEXT,__custoection");
+int w @section("__TEXT,__custoection");
+
+fn void main()
+{
+    int a = z + w;
+}
+
+/* #expect: test.ll
+
+@test.z = local_unnamed_addr global i32 0, section "__TEXT,__custoection", align 4
+@test.w = local_unnamed_addr global i32 0, section "__TEXT,__custoection", align 4
diff --git a/test/test_suite7/abi/macho_section_attributes.c3 b/test/test_suite7/abi/macho_section_attributes.c3
new file mode 100644
index 000000000..b6e1f7707
--- /dev/null
+++ b/test/test_suite7/abi/macho_section_attributes.c3
@@ -0,0 +1,8 @@
+// #target: macos-x64
+
+int foo @section("foo,   12345678901234567      "); // #error: Mach-o requires the section to be at the most 16 characters
+int bar @section("foo,         "); // #error: Mach-o requires 'segment,section' as the format, did you type it correctly?
+int baz @section("foo"); // #error: Mach-o requires 'segment,section' as the format, did you type it correctly?
+int abc @section("foo,b,c,d,e,f"); // #error: Too many parts to the Mach-o section description.
+int defg @section("foo,b,c,d");
+
diff --git a/test/test_suite7/abi/pass_large_aarch.c3t b/test/test_suite7/abi/pass_large_aarch.c3t
new file mode 100644
index 000000000..52e15789a
--- /dev/null
+++ b/test/test_suite7/abi/pass_large_aarch.c3t
@@ -0,0 +1,32 @@
+// #target: linux-aarch64
+
+module pass_large;
+
+
+struct Large
+{
+    void*[8] pointers;
+}
+
+extern fn void pass_large(Large large);
+
+fn void example()
+{
+    Large l = {};
+    pass_large(l);
+    pass_large(l);
+}
+
+/* #expect: pass_large.ll
+
+define void @pass_large.example()
+entry:
+  %l = alloca %Large, align 8
+  %indirectarg = alloca %Large, align 8
+  %indirectarg1 = alloca %Large, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %l, i8 0, i64 64, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 8 %l, i32 64, i1 false)
+  call void @pass_large(ptr align 8 %indirectarg)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg1, ptr align 8 %l, i32 64, i1 false)
+  call void @pass_large(ptr align 8 %indirectarg1)
+  ret void
diff --git a/test/test_suite7/abi/riscv32-ilp32-abi.c3t b/test/test_suite7/abi/riscv32-ilp32-abi.c3t
new file mode 100644
index 000000000..5fc8442d2
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32-abi.c3t
@@ -0,0 +1,94 @@
+// #target: linux-riscv32
+module test;
+
+struct Tiny {
+  char a, b, c, d;
+}
+
+struct Small {
+  int a;
+  int* b;
+}
+
+struct Small_aligned
+{
+  long a;
+}
+
+struct Large {
+  int a, b, c, d;
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(int a, long b, float c, double d, float128 e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(float a, long b, double c, float128 d,
+                              char e, ichar f, char g) {
+  return {(int)a, e, f, g};
+}
+
+// Aggregates and >=XLen scalars passed on the stack should be lowered just as
+// they would be if passed via registers.
+
+fn void f_scalar_stack_3(double a, long b, double c, long d, int e,
+                      long f, float g, double h, float128 i) {}
+
+fn void f_agg_stack(double a, long b, double c, long d, Tiny e,
+                 Small f, Small_aligned g, Large h) {}
+
+/* #expect: test.ll
+
+
+define i32 @test.f_scalar_stack_1(i32 %0, i64 %1, float %2, double %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %sext = sext i8 %6 to i32
+  %zext = zext i8 %7 to i32
+  %add = add i32 %sext, %zext
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 4 %0, float %1, i64 %2, double %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  %fpsi = fptosi float %1 to i32
+  store i32 %fpsi, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %zext = zext i8 %5 to i32
+  store i32 %zext, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i32 8
+  %sext = sext i8 %6 to i32
+  store i32 %sext, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i32 12
+  %zext3 = zext i8 %7 to i32
+  store i32 %zext3, ptr %ptradd2, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_3(double %0, i64 %1, double %2, i64 %3, i32 %4, i64 %5, float %6, double %7, fp128 %8) #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_stack(double %0, i64 %1, double %2, i64 %3, i32 %4, [2 x i32] %5, i64 %6, ptr align 4 %7) #0 {
+entry:
+  %e = alloca %Tiny, align 1
+  %f = alloca %Small, align 4
+  %g = alloca %Small_aligned, align 8
+  store i32 %4, ptr %e, align 1
+  store [2 x i32] %5, ptr %f, align 4
+  store i64 %6, ptr %g, align 8
+  ret void
+}
diff --git a/test/test_suite7/abi/riscv32-ilp32-ilp32f-abi-1.c3t b/test/test_suite7/abi/riscv32-ilp32-ilp32f-abi-1.c3t
new file mode 100644
index 000000000..dedad0285
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32-ilp32f-abi-1.c3t
@@ -0,0 +1,91 @@
+// #target: linux-riscv32
+module test;
+struct Tiny {
+  char a, b, c, d;
+}
+
+struct Small {
+  int a;
+  int* b;
+}
+
+struct Small_aligned {
+  long a;
+}
+
+struct Large {
+  int a, b, c, d;
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(int a, long b, int c, double d, float128 e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(int a, long b, double c, float128 d,
+                              char e, ichar f, char g) {
+  return {a, e, f, g};
+}
+
+// Aggregates and >=XLen scalars passed on the stack should be lowered just as
+// they would be if passed via registers.
+
+fn void f_scalar_stack_3(double a, long b, double c, long d, int e,
+                      long f, int g, double h, float128 i) {}
+
+fn void f_agg_stack(double a, long b, double c, long d, Tiny e,
+                 Small f, Small_aligned g, Large h) {}
+
+/* #expect: test.ll
+
+define i32 @test.f_scalar_stack_1(i32 %0, i64 %1, i32 %2, double %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %sext = sext i8 %6 to i32
+  %zext = zext i8 %7 to i32
+  %add = add i32 %sext, %zext
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 4 %0, i32 %1, i64 %2, double %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  store i32 %1, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %zext = zext i8 %5 to i32
+  store i32 %zext, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i32 8
+  %sext = sext i8 %6 to i32
+  store i32 %sext, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i32 12
+  %zext3 = zext i8 %7 to i32
+  store i32 %zext3, ptr %ptradd2, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_3(double %0, i64 %1, double %2, i64 %3, i32 %4, i64 %5, i32 %6, double %7, fp128 %8) #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_stack(double %0, i64 %1, double %2, i64 %3, i32 %4, [2 x i32] %5, i64 %6, ptr align 4 %7) #0 {
+entry:
+  %e = alloca %Tiny, align 1
+  %f = alloca %Small, align 4
+  %g = alloca %Small_aligned, align 8
+  store i32 %4, ptr %e, align 1
+  store [2 x i32] %5, ptr %f, align 4
+  store i64 %6, ptr %g, align 8
+  ret void
+}
+
diff --git a/test/test_suite7/abi/riscv32-ilp32-ilp32f-abi-2.c3t b/test/test_suite7/abi/riscv32-ilp32-ilp32f-abi-2.c3t
new file mode 100644
index 000000000..69cae96e6
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32-ilp32f-abi-2.c3t
@@ -0,0 +1,57 @@
+// #target: linux-riscv32
+// #opt: --riscvfloat=float
+module test;
+struct Tiny {
+  char a, b, c, d;
+}
+
+struct Small {
+  int a;
+  int* b;
+}
+
+struct Small_aligned {
+  long a;
+}
+
+struct Large {
+  int a, b, c, d;
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(int a, long b, int c, double d, float128 e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(int a, long b, double c, float128 d,
+                              char e, ichar f, char g) {
+  return {a, e, f, g};
+}
+
+// Aggregates and >=XLen scalars passed on the stack should be lowered just as
+// they would be if passed via registers.
+
+fn void f_scalar_stack_3(double a, long b, double c, long d, int e,
+                      long f, int g, double h, float128 i) {}
+
+fn void f_agg_stack(double a, long b, double c, long d, Tiny e,
+                 Small f, Small_aligned g, Large h) {}
+
+/* #expect: test.ll
+
+define i32 @test.f_scalar_stack_1(i32 %0, i64 %1, i32 %2, double %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7)
+
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 4 %0, i32 %1, i64 %2, double %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7)
+
+define void @test.f_scalar_stack_3(double %0, i64 %1, double %2, i64 %3, i32 %4, i64 %5, i32 %6, double %7, fp128 %8)
+
+define void @test.f_agg_stack(double %0, i64 %1, double %2, i64 %3, i32 %4, [2 x i32] %5, i64 %6, ptr align 4 %7)
+
+
diff --git a/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-1.c3t b/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-1.c3t
new file mode 100644
index 000000000..6bdf8968d
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-1.c3t
@@ -0,0 +1,526 @@
+// #target: linux-riscv32
+module test;
+
+
+fn void f_void() {}
+
+// Scalar arguments and return values smaller than the word size are extended
+// according to the sign of their type, up to 32 bits
+
+fn bool f_scalar_0(bool x) { return x; }
+
+fn ichar f_scalar_1(ichar x) { return x; }
+
+fn char f_scalar_2(char x) { return x; }
+
+fn int f_scalar_3(int x) { return x; }
+
+fn long f_scalar_4(long x) { return x; }
+
+fn int128 f_scalar_5(int128 x) { return x; }
+
+fn float f_fp_scalar_1(float x) { return x; }
+
+fn double f_fp_scalar_2(double x) { return x; }
+
+// Scalars larger than 2*xlen are passed/returned indirect. However, the
+// RISC-V LLVM backend can handle this fine, so the function doesn't need to
+// be modified.
+
+fn float128 f_fp_scalar_3(float128 x) { return x; }
+
+// Aggregates <= 2*xlen may be passed in registers, so will be coerced to
+// integer arguments. The rules for return are the same.
+
+struct Tiny {
+  char a, b, c, d;
+}
+
+fn void f_agg_tiny(Tiny x) {
+  x.a += x.b;
+  x.c += x.d;
+}
+
+fn Tiny f_agg_tiny_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v4i8(char[<4>] x) {
+  x[0] = x[1];
+  x[2] = x[3];
+}
+
+fn char[<4>] f_vec_tiny_v4i8_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v1i32(int[<1>] x) {
+  x[0] = 114;
+}
+
+fn int[<1>] f_vec_tiny_v1i32_ret() {
+  return {1};
+}
+
+struct Small {
+  int a;
+   int* b;
+}
+
+fn void f_agg_small(Small x) {
+  x.a += *x.b;
+  x.b = &x.a;
+}
+
+fn Small f_agg_small_ret() {
+  return {1, null};
+}
+
+
+fn void f_vec_small_v8i8(char[<8>] x) {
+  x[0] = x[7];
+}
+
+fn char[<8>] f_vec_small_v8i8_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+fn void f_vec_small_v1i64(long[<1>] x) {
+  x[0] = 114;
+}
+
+fn long[<1>] f_vec_small_v1i64_ret() {
+  return {1};
+}
+
+// Aggregates of 2*xlen size and 2*xlen alignment should be coerced to a
+// single 2*xlen-sized argument, to ensure that alignment can be maintained if
+// passed on the stack.
+
+struct Small_aligned {
+  long a;
+}
+
+fn void f_agg_small_aligned(Small_aligned x) {
+  x.a += x.a;
+}
+
+fn Small_aligned f_agg_small_aligned_ret(Small_aligned x) {
+  return {10};
+}
+
+// Aggregates greater > 2*xlen will be passed and returned indirectly
+struct Large {
+  int a, b, c, d;
+}
+
+fn void f_agg_large(Large x) {
+  x.a = x.b + x.c + x.d;
+}
+
+// The address where the struct should be written to will be the first
+// argument
+fn Large f_agg_large_ret(int i, ichar j) {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_large_v16i8(char[<16>] x) {
+  x[0] = x[7];
+}
+
+fn char[<16>] f_vec_large_v16i8_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(Tiny a, Small b, Small_aligned c,
+                     Large d, char e, ichar f, char g, ichar h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(int a, long b, long c, float128 d,
+                              char e, ichar f, char g)
+{
+  return {a, e, f, g};
+}
+
+fn float128 f_scalar_stack_4(int a, long b, long c, float128 d,
+                             char e, ichar f, char g) {
+  return d;
+}
+
+// Aggregates and >=XLen scalars passed on the stack should be lowered just as
+// they would be if passed via registers.
+
+fn void f_scalar_stack_5(double a, long b, double c, long d, int e,
+                      long f, float g, double h, float128 i) {}
+
+fn void f_agg_stack(double a, long b, double c, long d, Tiny e,
+                 Small f, Small_aligned g, Large h) {}
+
+// Ensure that ABI lowering happens as expected for vararg calls. For RV32
+// with the base integer calling convention there will be no observable
+// differences in the lowered IR for a call with varargs vs without.
+
+extern fn int f_va_callee(int, ...);
+
+fn void f_va_caller() {
+  f_va_callee(1, 2, 3, 4.0, 5.0, (Tiny){6, 7, 8, 9},
+              (Small){10, null}, (Small_aligned){11},
+              (Large){12, 13, 14, 15});
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_void() #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+define zeroext i8 @test.f_scalar_0(i8 zeroext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define signext i8 @test.f_scalar_1(i8 signext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define zeroext i8 @test.f_scalar_2(i8 zeroext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define i32 @test.f_scalar_3(i32 %0) #0 {
+entry:
+  ret i32 %0
+}
+
+; Function Attrs:
+define i64 @test.f_scalar_4(i64 %0) #0 {
+entry:
+  ret i64 %0
+}
+
+; Function Attrs:
+define i128 @test.f_scalar_5(i128 %0) #0 {
+entry:
+  ret i128 %0
+}
+
+; Function Attrs:
+define float @test.f_fp_scalar_1(float %0) #0 {
+entry:
+  ret float %0
+}
+
+; Function Attrs:
+define double @test.f_fp_scalar_2(double %0) #0 {
+entry:
+  ret double %0
+}
+
+; Function Attrs:
+define fp128 @test.f_fp_scalar_3(fp128 %0) #0 {
+entry:
+  ret fp128 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_tiny(i32 %0) #0 {
+entry:
+  %x = alloca %Tiny, align 1
+  store i32 %0, ptr %x, align 1
+  %1 = load i8, ptr %x, align 1
+  %ptradd = getelementptr inbounds i8, ptr %x, i32 1
+  %2 = load i8, ptr %ptradd, align 1
+  %add = add i8 %1, %2
+  store i8 %add, ptr %x, align 1
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i32 2
+  %3 = load i8, ptr %ptradd1, align 1
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i32 3
+  %4 = load i8, ptr %ptradd2, align 1
+  %add3 = add i8 %3, %4
+  store i8 %add3, ptr %ptradd1, align 1
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_agg_tiny_ret() #0 {
+entry:
+  %literal = alloca %Tiny, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const, i32 4, i1 false)
+  %0 = load i32, ptr %literal, align 1
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_tiny_v4i8(i32 %0) #0 {
+entry:
+  %x = alloca <4 x i8>, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load <4 x i8>, ptr %x, align 4
+  %2 = load <4 x i8>, ptr %x, align 4
+  %3 = extractelement <4 x i8> %2, i32 1
+  %elemset = insertelement <4 x i8> %1, i8 %3, i32 0
+  store <4 x i8> %elemset, ptr %x, align 4
+  %4 = load <4 x i8>, ptr %x, align 4
+  %5 = load <4 x i8>, ptr %x, align 4
+  %6 = extractelement <4 x i8> %5, i32 3
+  %elemset1 = insertelement <4 x i8> %4, i8 %6, i32 2
+  store <4 x i8> %elemset1, ptr %x, align 4
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_vec_tiny_v4i8_ret() #0 {
+entry:
+  %taddr = alloca <4 x i8>, align 4
+  store <4 x i8> <i8 1, i8 2, i8 3, i8 4>, ptr %taddr, align 4
+  %0 = load i32, ptr %taddr, align 4
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_tiny_v1i32(i32 %0) #0 {
+entry:
+  %x = alloca <1 x i32>, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load <1 x i32>, ptr %x, align 4
+  %elemset = insertelement <1 x i32> %1, i32 114, i32 0
+  store <1 x i32> %elemset, ptr %x, align 4
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_vec_tiny_v1i32_ret() #0 {
+entry:
+  %taddr = alloca <1 x i32>, align 4
+  store <1 x i32>
+  %0 = load i32, ptr %taddr, align 4
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_small([2 x i32] %0) #0 {
+entry:
+  %x = alloca %Small, align 4
+  store [2 x i32] %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i32 4
+  %2 = load ptr, ptr %ptradd, align 4
+  %3 = load i32, ptr %2, align 4
+  %add = add i32 %1, %3
+  store i32 %add, ptr %x, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i32 4
+  store ptr %x, ptr %ptradd1, align 4
+  ret void
+}
+
+; Function Attrs:
+define [2 x i32] @test.f_agg_small_ret() #0 {
+entry:
+  %literal = alloca %Small, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.1, i32 8, i1 false)
+  %0 = load [2 x i32], ptr %literal, align 4
+  ret [2 x i32] %0
+}
+
+; Function Attrs:
+define void @test.f_vec_small_v8i8(i64 %0) #0 {
+entry:
+  %x = alloca <8 x i8>, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load <8 x i8>, ptr %x, align 8
+  %2 = load <8 x i8>, ptr %x, align 8
+  %3 = extractelement <8 x i8> %2, i32 7
+  %elemset = insertelement <8 x i8> %1, i8 %3, i32 0
+  store <8 x i8> %elemset, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_vec_small_v8i8_ret() #0 {
+entry:
+  %taddr = alloca <8 x i8>, align 8
+  store <8 x i8> <i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8>, ptr %taddr, align 8
+  %0 = load i64, ptr %taddr, align 8
+  ret i64 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_small_v1i64(i64 %0) #0 {
+entry:
+  %x = alloca <1 x i64>, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load <1 x i64>, ptr %x, align 8
+  %elemset = insertelement <1 x i64> %1, i64 114, i32 0
+  store <1 x i64> %elemset, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_vec_small_v1i64_ret() #0 {
+entry:
+  %taddr = alloca <1 x i64>, align 8
+  store <1 x i64>
+  %0 = load i64, ptr %taddr, align 8
+  ret i64 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_small_aligned(i64 %0) #0 {
+entry:
+  %x = alloca %Small_aligned, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load i64, ptr %x, align 8
+  %2 = load i64, ptr %x, align 8
+  %add = add i64 %1, %2
+  store i64 %add, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_agg_small_aligned_ret(i64 %0) #0 {
+entry:
+  %x = alloca %Small_aligned, align 8
+  %literal = alloca %Small_aligned, align 8
+  store i64 %0, ptr %x, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.2, i32 8, i1 false)
+  %1 = load i64, ptr %literal, align 8
+  ret i64 %1
+}
+
+; Function Attrs:
+define void @test.f_agg_large(ptr align 4 %0) #0 {
+entry:
+  %ptradd = getelementptr inbounds i8, ptr %0, i32 4
+  %1 = load i32, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i32 8
+  %2 = load i32, ptr %ptradd1, align 4
+  %add = add i32 %1, %2
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i32 12
+  %3 = load i32, ptr %ptradd2, align 4
+  %add3 = add i32 %add, %3
+  store i32 %add3, ptr %0, align 4
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_large_ret(ptr noalias sret(%Large) align 4 %0, i32 %1, i8 signext %2) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.3, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_vec_large_v16i8(ptr align 16 %0) #0 {
+entry:
+  %1 = load <16 x i8>, ptr %0, align 16
+  %2 = load <16 x i8>, ptr %0, align 16
+  %3 = extractelement <16 x i8> %2, i32 7
+  %elemset = insertelement <16 x i8> %1, i8 %3, i32 0
+  store <16 x i8> %elemset, ptr %0, align 16
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_vec_large_v16i8_ret(ptr noalias sret(<16 x i8>) align 16 %0) #0 {
+entry:
+  store <16 x i8> <i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8>, ptr %0, align 16
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_scalar_stack_1(i32 %0, [2 x i32] %1, i64 %2, ptr align 4 %3, i8 zeroext %4, i8 signext %5, i8 %6, i8 %7) #0 {
+entry:
+  %a = alloca %Tiny, align 1
+  %b = alloca %Small, align 4
+  %c = alloca %Small_aligned, align 8
+  store i32 %0, ptr %a, align 1
+  store [2 x i32] %1, ptr %b, align 4
+  store i64 %2, ptr %c, align 8
+  %zext = zext i8 %6 to i32
+  %sext = sext i8 %7 to i32
+  %add = add i32 %zext, %sext
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 4 %0, i32 %1, i64 %2, i64 %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  store i32 %1, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %zext = zext i8 %5 to i32
+  store i32 %zext, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i32 8
+  %sext = sext i8 %6 to i32
+  store i32 %sext, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i32 12
+  %zext3 = zext i8 %7 to i32
+  store i32 %zext3, ptr %ptradd2, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define fp128 @test.f_scalar_stack_4(i32 %0, i64 %1, i64 %2, fp128 %3, i8 zeroext %4, i8 %5, i8 %6) #0 {
+entry:
+  ret fp128 %3
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_5(double %0, i64 %1, double %2, i64 %3, i32 %4, i64 %5, float %6, double %7, fp128 %8) #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_stack(double %0, i64 %1, double %2, i64 %3, i32 %4, [2 x i32] %5, i64 %6, ptr align 4 %7) #0 {
+entry:
+  %e = alloca %Tiny, align 1
+  %f = alloca %Small, align 4
+  %g = alloca %Small_aligned, align 8
+  store i32 %4, ptr %e, align 1
+  store [2 x i32] %5, ptr %f, align 4
+  store i64 %6, ptr %g, align 8
+  ret void
+}
+
+; Function Attrs:
+declare i32 @f_va_callee(i32, ...) #0
+
+; Function Attrs:
+define void @test.f_va_caller() #0 {
+entry:
+  %literal = alloca %Tiny, align 1
+  %literal1 = alloca %Small, align 4
+  %literal2 = alloca %Small_aligned, align 8
+  %literal3 = alloca %Large, align 4
+  %indirectarg = alloca %Large, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const.4, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal1, ptr align 4 @.__const.5, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal2, ptr align 8 @.__const.6, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal3, ptr align 4 @.__const.7, i32 16, i1 false)
+  %0 = load i32, ptr %literal, align 1
+  %1 = load [2 x i32], ptr %literal1, align 4
+  %2 = load i64, ptr %literal2, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %indirectarg, ptr align 4 %literal3, i32 16, i1 false)
+  %3 = call i32 (i32, ...) @f_va_callee(i32 1, i32 2, i32 3, double 4.000000e+00, double 5.000000e+00, i32 %0, [2 x i32] %1, i64 %2, ptr align 4 %indirectarg)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-2.c3t b/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-2.c3t
new file mode 100644
index 000000000..bfec66560
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-2.c3t
@@ -0,0 +1,518 @@
+// #target: linux-riscv32
+// #opt: --riscvfloat=float
+module test;
+
+
+fn void f_void() {}
+
+// Scalar arguments and return values smaller than the word size are extended
+// according to the sign of their type, up to 32 bits
+
+fn bool f_scalar_0(bool x) { return x; }
+
+fn ichar f_scalar_1(ichar x) { return x; }
+
+fn char f_scalar_2(char x) { return x; }
+
+fn int f_scalar_3(int x) { return x; }
+
+fn long f_scalar_4(long x) { return x; }
+
+fn int128 f_scalar_5(int128 x) { return x; }
+
+fn float f_fp_scalar_1(float x) { return x; }
+
+fn double f_fp_scalar_2(double x) { return x; }
+
+// Scalars larger than 2*xlen are passed/returned indirect. However, the
+// RISC-V LLVM backend can handle this fine, so the function doesn't need to
+// be modified.
+
+fn float128 f_fp_scalar_3(float128 x) { return x; }
+
+// Aggregates <= 2*xlen may be passed in registers, so will be coerced to
+// integer arguments. The rules for return are the same.
+
+struct Tiny {
+  char a, b, c, d;
+}
+
+fn void f_agg_tiny(Tiny x) {
+  x.a += x.b;
+  x.c += x.d;
+}
+
+fn Tiny f_agg_tiny_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v4i8(char[<4>] x) {
+  x[0] = x[1];
+  x[2] = x[3];
+}
+
+fn char[<4>] f_vec_tiny_v4i8_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v1i32(int[<1>] x) {
+  x[0] = 114;
+}
+
+fn int[<1>] f_vec_tiny_v1i32_ret() {
+  return {1};
+}
+
+struct Small {
+  int a;
+   int* b;
+}
+
+fn void f_agg_small(Small x) {
+  x.a += *x.b;
+  x.b = &x.a;
+}
+
+fn Small f_agg_small_ret() {
+  return {1, null};
+}
+
+
+fn void f_vec_small_v8i8(char[<8>] x) {
+  x[0] = x[7];
+}
+
+fn char[<8>] f_vec_small_v8i8_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+fn void f_vec_small_v1i64(long[<1>] x) {
+  x[0] = 114;
+}
+
+fn long[<1>] f_vec_small_v1i64_ret() {
+  return {1};
+}
+
+// Aggregates of 2*xlen size and 2*xlen alignment should be coerced to a
+// single 2*xlen-sized argument, to ensure that alignment can be maintained if
+// passed on the stack.
+
+struct Small_aligned {
+  long a;
+}
+
+fn void f_agg_small_aligned(Small_aligned x) {
+  x.a += x.a;
+}
+
+fn Small_aligned f_agg_small_aligned_ret(Small_aligned x) {
+  return {10};
+}
+
+// Aggregates greater > 2*xlen will be passed and returned indirectly
+struct Large {
+  int a, b, c, d;
+}
+
+fn void f_agg_large(Large x) {
+  x.a = x.b + x.c + x.d;
+}
+
+// The address where the struct should be written to will be the first
+// argument
+fn Large f_agg_large_ret(int i, ichar j) {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_large_v16i8(char[<16>] x) {
+  x[0] = x[7];
+}
+
+fn char[<16>] f_vec_large_v16i8_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(Tiny a, Small b, Small_aligned c,
+                     Large d, char e, ichar f, char g, ichar h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(int a, long b, long c, float128 d,
+                              char e, ichar f, char g)
+{
+  return {a, e, f, g};
+}
+
+fn float128 f_scalar_stack_4(int a, long b, long c, float128 d,
+                             char e, ichar f, char g) {
+  return d;
+}
+
+// Aggregates and >=XLen scalars passed on the stack should be lowered just as
+// they would be if passed via registers.
+
+fn void f_scalar_stack_5(double a, long b, double c, long d, int e,
+                      long f, float g, double h, float128 i) {}
+
+fn void f_agg_stack(double a, long b, double c, long d, Tiny e,
+                 Small f, Small_aligned g, Large h) {}
+
+// Ensure that ABI lowering happens as expected for vararg calls. For RV32
+// with the base integer calling convention there will be no observable
+// differences in the lowered IR for a call with varargs vs without.
+
+extern fn int f_va_callee(int, ...);
+
+fn void f_va_caller() {
+  f_va_callee(1, 2, 3, 4.0, 5.0, (Tiny){6, 7, 8, 9},
+              (Small){10, null}, (Small_aligned){11},
+              (Large){12, 13, 14, 15});
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_void()
+
+
+define signext i8 @test.f_scalar_1(i8 signext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define zeroext i8 @test.f_scalar_2(i8 zeroext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define i32 @test.f_scalar_3(i32 %0) #0 {
+entry:
+  ret i32 %0
+}
+
+; Function Attrs:
+define i64 @test.f_scalar_4(i64 %0) #0 {
+entry:
+  ret i64 %0
+}
+
+; Function Attrs:
+define i128 @test.f_scalar_5(i128 %0) #0 {
+entry:
+  ret i128 %0
+}
+
+; Function Attrs:
+define float @test.f_fp_scalar_1(float %0) #0 {
+entry:
+  ret float %0
+}
+
+; Function Attrs:
+define double @test.f_fp_scalar_2(double %0) #0 {
+entry:
+  ret double %0
+}
+
+; Function Attrs:
+define fp128 @test.f_fp_scalar_3(fp128 %0) #0 {
+entry:
+  ret fp128 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_tiny(i32 %0) #0 {
+entry:
+  %x = alloca %Tiny, align 1
+  store i32 %0, ptr %x, align 1
+  %1 = load i8, ptr %x, align 1
+  %ptradd = getelementptr inbounds i8, ptr %x, i32 1
+  %2 = load i8, ptr %ptradd, align 1
+  %add = add i8 %1, %2
+  store i8 %add, ptr %x, align 1
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i32 2
+  %3 = load i8, ptr %ptradd1, align 1
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i32 3
+  %4 = load i8, ptr %ptradd2, align 1
+  %add3 = add i8 %3, %4
+  store i8 %add3, ptr %ptradd1, align 1
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_agg_tiny_ret() #0 {
+entry:
+  %literal = alloca %Tiny, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const, i32 4, i1 false)
+  %0 = load i32, ptr %literal, align 1
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_tiny_v4i8(i32 %0) #0 {
+entry:
+  %x = alloca <4 x i8>, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load <4 x i8>, ptr %x, align 4
+  %2 = load <4 x i8>, ptr %x, align 4
+  %3 = extractelement <4 x i8> %2, i32 1
+  %elemset = insertelement <4 x i8> %1, i8 %3, i32 0
+  store <4 x i8> %elemset, ptr %x, align 4
+  %4 = load <4 x i8>, ptr %x, align 4
+  %5 = load <4 x i8>, ptr %x, align 4
+  %6 = extractelement <4 x i8> %5, i32 3
+  %elemset1 = insertelement <4 x i8> %4, i8 %6, i32 2
+  store <4 x i8> %elemset1, ptr %x, align 4
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_vec_tiny_v4i8_ret() #0 {
+entry:
+  %taddr = alloca <4 x i8>, align 4
+  store <4 x i8> <i8 1, i8 2, i8 3, i8 4>, ptr %taddr, align 4
+  %0 = load i32, ptr %taddr, align 4
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_tiny_v1i32(i32 %0) #0 {
+entry:
+  %x = alloca <1 x i32>, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load <1 x i32>, ptr %x, align 4
+  %elemset = insertelement <1 x i32> %1, i32 114, i32 0
+  store <1 x i32> %elemset, ptr %x, align 4
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_vec_tiny_v1i32_ret() #0 {
+entry:
+  %taddr = alloca <1 x i32>, align 4
+  store <1 x i32>
+  %0 = load i32, ptr %taddr, align 4
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_small([2 x i32] %0) #0 {
+entry:
+  %x = alloca %Small, align 4
+  store [2 x i32] %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i32 4
+  %2 = load ptr, ptr %ptradd, align 4
+  %3 = load i32, ptr %2, align 4
+  %add = add i32 %1, %3
+  store i32 %add, ptr %x, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i32 4
+  store ptr %x, ptr %ptradd1, align 4
+  ret void
+}
+
+; Function Attrs:
+define [2 x i32] @test.f_agg_small_ret() #0 {
+entry:
+  %literal = alloca %Small, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.1, i32 8, i1 false)
+  %0 = load [2 x i32], ptr %literal, align 4
+  ret [2 x i32] %0
+}
+
+; Function Attrs:
+define void @test.f_vec_small_v8i8(i64 %0) #0 {
+entry:
+  %x = alloca <8 x i8>, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load <8 x i8>, ptr %x, align 8
+  %2 = load <8 x i8>, ptr %x, align 8
+  %3 = extractelement <8 x i8> %2, i32 7
+  %elemset = insertelement <8 x i8> %1, i8 %3, i32 0
+  store <8 x i8> %elemset, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_vec_small_v8i8_ret() #0 {
+entry:
+  %taddr = alloca <8 x i8>, align 8
+  store <8 x i8> <i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8>, ptr %taddr, align 8
+  %0 = load i64, ptr %taddr, align 8
+  ret i64 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_small_v1i64(i64 %0) #0 {
+entry:
+  %x = alloca <1 x i64>, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load <1 x i64>, ptr %x, align 8
+  %elemset = insertelement <1 x i64> %1, i64 114, i32 0
+  store <1 x i64> %elemset, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_vec_small_v1i64_ret() #0 {
+entry:
+  %taddr = alloca <1 x i64>, align 8
+  store <1 x i64>
+  %0 = load i64, ptr %taddr, align 8
+  ret i64 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_small_aligned(i64 %0) #0 {
+entry:
+  %x = alloca %Small_aligned, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load i64, ptr %x, align 8
+  %2 = load i64, ptr %x, align 8
+  %add = add i64 %1, %2
+  store i64 %add, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_agg_small_aligned_ret(i64 %0) #0 {
+entry:
+  %x = alloca %Small_aligned, align 8
+  %literal = alloca %Small_aligned, align 8
+  store i64 %0, ptr %x, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.2, i32 8, i1 false)
+  %1 = load i64, ptr %literal, align 8
+  ret i64 %1
+}
+
+; Function Attrs:
+define void @test.f_agg_large(ptr align 4 %0) #0 {
+entry:
+  %ptradd = getelementptr inbounds i8, ptr %0, i32 4
+  %1 = load i32, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i32 8
+  %2 = load i32, ptr %ptradd1, align 4
+  %add = add i32 %1, %2
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i32 12
+  %3 = load i32, ptr %ptradd2, align 4
+  %add3 = add i32 %add, %3
+  store i32 %add3, ptr %0, align 4
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_large_ret(ptr noalias sret(%Large) align 4 %0, i32 %1, i8 signext %2) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.3, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_vec_large_v16i8(ptr align 16 %0) #0 {
+entry:
+  %1 = load <16 x i8>, ptr %0, align 16
+  %2 = load <16 x i8>, ptr %0, align 16
+  %3 = extractelement <16 x i8> %2, i32 7
+  %elemset = insertelement <16 x i8> %1, i8 %3, i32 0
+  store <16 x i8> %elemset, ptr %0, align 16
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_vec_large_v16i8_ret(ptr noalias sret(<16 x i8>) align 16 %0) #0 {
+entry:
+  store <16 x i8> <i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8>, ptr %0, align 16
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_scalar_stack_1(i32 %0, [2 x i32] %1, i64 %2, ptr align 4 %3, i8 zeroext %4, i8 signext %5, i8 %6, i8 %7) #0 {
+entry:
+  %a = alloca %Tiny, align 1
+  %b = alloca %Small, align 4
+  %c = alloca %Small_aligned, align 8
+  store i32 %0, ptr %a, align 1
+  store [2 x i32] %1, ptr %b, align 4
+  store i64 %2, ptr %c, align 8
+  %zext = zext i8 %6 to i32
+  %sext = sext i8 %7 to i32
+  %add = add i32 %zext, %sext
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 4 %0, i32 %1, i64 %2, i64 %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  store i32 %1, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %zext = zext i8 %5 to i32
+  store i32 %zext, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i32 8
+  %sext = sext i8 %6 to i32
+  store i32 %sext, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i32 12
+  %zext3 = zext i8 %7 to i32
+  store i32 %zext3, ptr %ptradd2, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define fp128 @test.f_scalar_stack_4(i32 %0, i64 %1, i64 %2, fp128 %3, i8 zeroext %4, i8 %5, i8 %6) #0 {
+entry:
+  ret fp128 %3
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_5(double %0, i64 %1, double %2, i64 %3, i32 %4, i64 %5, float %6, double %7, fp128 %8) #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_stack(double %0, i64 %1, double %2, i64 %3, i32 %4, [2 x i32] %5, i64 %6, ptr align 4 %7) #0 {
+entry:
+  %e = alloca %Tiny, align 1
+  %f = alloca %Small, align 4
+  %g = alloca %Small_aligned, align 8
+  store i32 %4, ptr %e, align 1
+  store [2 x i32] %5, ptr %f, align 4
+  store i64 %6, ptr %g, align 8
+  ret void
+}
+
+; Function Attrs:
+declare i32 @f_va_callee(i32, ...) #0
+
+; Function Attrs:
+define void @test.f_va_caller() #0 {
+entry:
+  %literal = alloca %Tiny, align 1
+  %literal1 = alloca %Small, align 4
+  %literal2 = alloca %Small_aligned, align 8
+  %literal3 = alloca %Large, align 4
+  %indirectarg = alloca %Large, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const.4, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal1, ptr align 4 @.__const.5, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal2, ptr align 8 @.__const.6, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal3, ptr align 4 @.__const.7, i32 16, i1 false)
+  %0 = load i32, ptr %literal, align 1
+  %1 = load [2 x i32], ptr %literal1, align 4
+  %2 = load i64, ptr %literal2, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %indirectarg, ptr align 4 %literal3, i32 16, i1 false)
+  %3 = call i32 (i32, ...) @f_va_callee(i32 1, i32 2, i32 3, double 4.000000e+00, double 5.000000e+00, i32 %0, [2 x i32] %1, i64 %2, ptr align 4 %indirectarg)
+  ret void
+}
diff --git a/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-3.c3t b/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-3.c3t
new file mode 100644
index 000000000..8bb9b31a8
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32-ilp32f-ilp32d-abi-3.c3t
@@ -0,0 +1,527 @@
+// #target: linux-riscv32
+// #opt: --riscvfloat=double
+module test;
+
+
+fn void f_void() {}
+
+// Scalar arguments and return values smaller than the word size are extended
+// according to the sign of their type, up to 32 bits
+
+fn bool f_scalar_0(bool x) { return x; }
+
+fn ichar f_scalar_1(ichar x) { return x; }
+
+fn char f_scalar_2(char x) { return x; }
+
+fn int f_scalar_3(int x) { return x; }
+
+fn long f_scalar_4(long x) { return x; }
+
+fn int128 f_scalar_5(int128 x) { return x; }
+
+fn float f_fp_scalar_1(float x) { return x; }
+
+fn double f_fp_scalar_2(double x) { return x; }
+
+// Scalars larger than 2*xlen are passed/returned indirect. However, the
+// RISC-V LLVM backend can handle this fine, so the function doesn't need to
+// be modified.
+
+fn float128 f_fp_scalar_3(float128 x) { return x; }
+
+// Aggregates <= 2*xlen may be passed in registers, so will be coerced to
+// integer arguments. The rules for return are the same.
+
+struct Tiny {
+  char a, b, c, d;
+}
+
+fn void f_agg_tiny(Tiny x) {
+  x.a += x.b;
+  x.c += x.d;
+}
+
+fn Tiny f_agg_tiny_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v4i8(char[<4>] x) {
+  x[0] = x[1];
+  x[2] = x[3];
+}
+
+fn char[<4>] f_vec_tiny_v4i8_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v1i32(int[<1>] x) {
+  x[0] = 114;
+}
+
+fn int[<1>] f_vec_tiny_v1i32_ret() {
+  return {1};
+}
+
+struct Small {
+  int a;
+   int* b;
+}
+
+fn void f_agg_small(Small x) {
+  x.a += *x.b;
+  x.b = &x.a;
+}
+
+fn Small f_agg_small_ret() {
+  return {1, null};
+}
+
+
+fn void f_vec_small_v8i8(char[<8>] x) {
+  x[0] = x[7];
+}
+
+fn char[<8>] f_vec_small_v8i8_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+fn void f_vec_small_v1i64(long[<1>] x) {
+  x[0] = 114;
+}
+
+fn long[<1>] f_vec_small_v1i64_ret() {
+  return {1};
+}
+
+// Aggregates of 2*xlen size and 2*xlen alignment should be coerced to a
+// single 2*xlen-sized argument, to ensure that alignment can be maintained if
+// passed on the stack.
+
+struct Small_aligned {
+  long a;
+}
+
+fn void f_agg_small_aligned(Small_aligned x) {
+  x.a += x.a;
+}
+
+fn Small_aligned f_agg_small_aligned_ret(Small_aligned x) {
+  return {10};
+}
+
+// Aggregates greater > 2*xlen will be passed and returned indirectly
+struct Large {
+  int a, b, c, d;
+}
+
+fn void f_agg_large(Large x) {
+  x.a = x.b + x.c + x.d;
+}
+
+// The address where the struct should be written to will be the first
+// argument
+fn Large f_agg_large_ret(int i, ichar j) {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_large_v16i8(char[<16>] x) {
+  x[0] = x[7];
+}
+
+fn char[<16>] f_vec_large_v16i8_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(Tiny a, Small b, Small_aligned c,
+                     Large d, char e, ichar f, char g, ichar h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(int a, long b, long c, float128 d,
+                              char e, ichar f, char g)
+{
+  return {a, e, f, g};
+}
+
+fn float128 f_scalar_stack_4(int a, long b, long c, float128 d,
+                             char e, ichar f, char g) {
+  return d;
+}
+
+// Aggregates and >=XLen scalars passed on the stack should be lowered just as
+// they would be if passed via registers.
+
+fn void f_scalar_stack_5(double a, long b, double c, long d, int e,
+                      long f, float g, double h, float128 i) {}
+
+fn void f_agg_stack(double a, long b, double c, long d, Tiny e,
+                 Small f, Small_aligned g, Large h) {}
+
+// Ensure that ABI lowering happens as expected for vararg calls. For RV32
+// with the base integer calling convention there will be no observable
+// differences in the lowered IR for a call with varargs vs without.
+
+extern fn int f_va_callee(int, ...);
+
+fn void f_va_caller() {
+  f_va_callee(1, 2, 3, 4.0, 5.0, (Tiny){6, 7, 8, 9},
+              (Small){10, null}, (Small_aligned){11},
+              (Large){12, 13, 14, 15});
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_void() #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+define zeroext i8 @test.f_scalar_0(i8 zeroext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define signext i8 @test.f_scalar_1(i8 signext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define zeroext i8 @test.f_scalar_2(i8 zeroext %0) #0 {
+entry:
+  ret i8 %0
+}
+
+; Function Attrs:
+define i32 @test.f_scalar_3(i32 %0) #0 {
+entry:
+  ret i32 %0
+}
+
+; Function Attrs:
+define i64 @test.f_scalar_4(i64 %0) #0 {
+entry:
+  ret i64 %0
+}
+
+; Function Attrs:
+define i128 @test.f_scalar_5(i128 %0) #0 {
+entry:
+  ret i128 %0
+}
+
+; Function Attrs:
+define float @test.f_fp_scalar_1(float %0) #0 {
+entry:
+  ret float %0
+}
+
+; Function Attrs:
+define double @test.f_fp_scalar_2(double %0) #0 {
+entry:
+  ret double %0
+}
+
+; Function Attrs:
+define fp128 @test.f_fp_scalar_3(fp128 %0) #0 {
+entry:
+  ret fp128 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_tiny(i32 %0) #0 {
+entry:
+  %x = alloca %Tiny, align 1
+  store i32 %0, ptr %x, align 1
+  %1 = load i8, ptr %x, align 1
+  %ptradd = getelementptr inbounds i8, ptr %x, i32 1
+  %2 = load i8, ptr %ptradd, align 1
+  %add = add i8 %1, %2
+  store i8 %add, ptr %x, align 1
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i32 2
+  %3 = load i8, ptr %ptradd1, align 1
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i32 3
+  %4 = load i8, ptr %ptradd2, align 1
+  %add3 = add i8 %3, %4
+  store i8 %add3, ptr %ptradd1, align 1
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_agg_tiny_ret() #0 {
+entry:
+  %literal = alloca %Tiny, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const, i32 4, i1 false)
+  %0 = load i32, ptr %literal, align 1
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_tiny_v4i8(i32 %0) #0 {
+entry:
+  %x = alloca <4 x i8>, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load <4 x i8>, ptr %x, align 4
+  %2 = load <4 x i8>, ptr %x, align 4
+  %3 = extractelement <4 x i8> %2, i32 1
+  %elemset = insertelement <4 x i8> %1, i8 %3, i32 0
+  store <4 x i8> %elemset, ptr %x, align 4
+  %4 = load <4 x i8>, ptr %x, align 4
+  %5 = load <4 x i8>, ptr %x, align 4
+  %6 = extractelement <4 x i8> %5, i32 3
+  %elemset1 = insertelement <4 x i8> %4, i8 %6, i32 2
+  store <4 x i8> %elemset1, ptr %x, align 4
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_vec_tiny_v4i8_ret() #0 {
+entry:
+  %taddr = alloca <4 x i8>, align 4
+  store <4 x i8> <i8 1, i8 2, i8 3, i8 4>, ptr %taddr, align 4
+  %0 = load i32, ptr %taddr, align 4
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_tiny_v1i32(i32 %0) #0 {
+entry:
+  %x = alloca <1 x i32>, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load <1 x i32>, ptr %x, align 4
+  %elemset = insertelement <1 x i32> %1, i32 114, i32 0
+  store <1 x i32> %elemset, ptr %x, align 4
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_vec_tiny_v1i32_ret() #0 {
+entry:
+  %taddr = alloca <1 x i32>, align 4
+  store <1 x i32>
+  %0 = load i32, ptr %taddr, align 4
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_small([2 x i32] %0) #0 {
+entry:
+  %x = alloca %Small, align 4
+  store [2 x i32] %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i32 4
+  %2 = load ptr, ptr %ptradd, align 4
+  %3 = load i32, ptr %2, align 4
+  %add = add i32 %1, %3
+  store i32 %add, ptr %x, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i32 4
+  store ptr %x, ptr %ptradd1, align 4
+  ret void
+}
+
+; Function Attrs:
+define [2 x i32] @test.f_agg_small_ret() #0 {
+entry:
+  %literal = alloca %Small, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.1, i32 8, i1 false)
+  %0 = load [2 x i32], ptr %literal, align 4
+  ret [2 x i32] %0
+}
+
+; Function Attrs:
+define void @test.f_vec_small_v8i8(i64 %0) #0 {
+entry:
+  %x = alloca <8 x i8>, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load <8 x i8>, ptr %x, align 8
+  %2 = load <8 x i8>, ptr %x, align 8
+  %3 = extractelement <8 x i8> %2, i32 7
+  %elemset = insertelement <8 x i8> %1, i8 %3, i32 0
+  store <8 x i8> %elemset, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_vec_small_v8i8_ret() #0 {
+entry:
+  %taddr = alloca <8 x i8>, align 8
+  store <8 x i8> <i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8>, ptr %taddr, align 8
+  %0 = load i64, ptr %taddr, align 8
+  ret i64 %0
+}
+
+; Function Attrs:
+define void @test.f_vec_small_v1i64(i64 %0) #0 {
+entry:
+  %x = alloca <1 x i64>, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load <1 x i64>, ptr %x, align 8
+  %elemset = insertelement <1 x i64> %1, i64 114, i32 0
+  store <1 x i64> %elemset, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_vec_small_v1i64_ret() #0 {
+entry:
+  %taddr = alloca <1 x i64>, align 8
+  store <1 x i64>
+  %0 = load i64, ptr %taddr, align 8
+  ret i64 %0
+}
+
+; Function Attrs:
+define void @test.f_agg_small_aligned(i64 %0) #0 {
+entry:
+  %x = alloca %Small_aligned, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load i64, ptr %x, align 8
+  %2 = load i64, ptr %x, align 8
+  %add = add i64 %1, %2
+  store i64 %add, ptr %x, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.f_agg_small_aligned_ret(i64 %0) #0 {
+entry:
+  %x = alloca %Small_aligned, align 8
+  %literal = alloca %Small_aligned, align 8
+  store i64 %0, ptr %x, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.2, i32 8, i1 false)
+  %1 = load i64, ptr %literal, align 8
+  ret i64 %1
+}
+
+; Function Attrs:
+define void @test.f_agg_large(ptr align 4 %0) #0 {
+entry:
+  %ptradd = getelementptr inbounds i8, ptr %0, i32 4
+  %1 = load i32, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i32 8
+  %2 = load i32, ptr %ptradd1, align 4
+  %add = add i32 %1, %2
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i32 12
+  %3 = load i32, ptr %ptradd2, align 4
+  %add3 = add i32 %add, %3
+  store i32 %add3, ptr %0, align 4
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_large_ret(ptr noalias sret(%Large) align 4 %0, i32 %1, i8 signext %2) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.3, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_vec_large_v16i8(ptr align 16 %0) #0 {
+entry:
+  %1 = load <16 x i8>, ptr %0, align 16
+  %2 = load <16 x i8>, ptr %0, align 16
+  %3 = extractelement <16 x i8> %2, i32 7
+  %elemset = insertelement <16 x i8> %1, i8 %3, i32 0
+  store <16 x i8> %elemset, ptr %0, align 16
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_vec_large_v16i8_ret(ptr noalias sret(<16 x i8>) align 16 %0) #0 {
+entry:
+  store <16 x i8> <i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7, i8 8>, ptr %0, align 16
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.f_scalar_stack_1(i32 %0, [2 x i32] %1, i64 %2, ptr align 4 %3, i8 zeroext %4, i8 signext %5, i8 %6, i8 %7) #0 {
+entry:
+  %a = alloca %Tiny, align 1
+  %b = alloca %Small, align 4
+  %c = alloca %Small_aligned, align 8
+  store i32 %0, ptr %a, align 1
+  store [2 x i32] %1, ptr %b, align 4
+  store i64 %2, ptr %c, align 8
+  %zext = zext i8 %6 to i32
+  %sext = sext i8 %7 to i32
+  %add = add i32 %zext, %sext
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 4 %0, i32 %1, i64 %2, i64 %3, fp128 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 4
+  store i32 %1, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %zext = zext i8 %5 to i32
+  store i32 %zext, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i32 8
+  %sext = sext i8 %6 to i32
+  store i32 %sext, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i32 12
+  %zext3 = zext i8 %7 to i32
+  store i32 %zext3, ptr %ptradd2, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 16, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define fp128 @test.f_scalar_stack_4(i32 %0, i64 %1, i64 %2, fp128 %3, i8 zeroext %4, i8 %5, i8 %6) #0 {
+entry:
+  ret fp128 %3
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_5(double %0, i64 %1, double %2, i64 %3, i32 %4, i64 %5, float %6, double %7, fp128 %8) #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+define void @test.f_agg_stack(double %0, i64 %1, double %2, i64 %3, i32 %4, [2 x i32] %5, i64 %6, ptr align 4 %7) #0 {
+entry:
+  %e = alloca %Tiny, align 1
+  %f = alloca %Small, align 4
+  %g = alloca %Small_aligned, align 8
+  store i32 %4, ptr %e, align 1
+  store [2 x i32] %5, ptr %f, align 4
+  store i64 %6, ptr %g, align 8
+  ret void
+}
+
+; Function Attrs:
+declare i32 @f_va_callee(i32, ...) #0
+
+; Function Attrs:
+define void @test.f_va_caller() #0 {
+entry:
+  %literal = alloca %Tiny, align 1
+  %literal1 = alloca %Small, align 4
+  %literal2 = alloca %Small_aligned, align 8
+  %literal3 = alloca %Large, align 4
+  %indirectarg = alloca %Large, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const.4, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal1, ptr align 4 @.__const.5, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal2, ptr align 8 @.__const.6, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal3, ptr align 4 @.__const.7, i32 16, i1 false)
+  %0 = load i32, ptr %literal, align 1
+  %1 = load [2 x i32], ptr %literal1, align 4
+  %2 = load i64, ptr %literal2, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %indirectarg, ptr align 4 %literal3, i32 16, i1 false)
+  %3 = call i32 (i32, ...) @f_va_callee(i32 1, i32 2, i32 3, double 4.000000e+00, double 5.000000e+00, i32 %0, [2 x i32] %1, i64 %2, ptr align 4 %indirectarg)
+  ret void
+}
diff --git a/test/test_suite7/abi/riscv32-ilp32d-abi.c3t b/test/test_suite7/abi/riscv32-ilp32d-abi.c3t
new file mode 100644
index 000000000..e696a4994
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32d-abi.c3t
@@ -0,0 +1,505 @@
+// #target: linux-riscv32
+// #opt: --riscvfloat=double
+module test;
+// Verify that the tracking of used GPRs and FPRs works correctly by checking
+// that small integers are sign/zero extended when passed in registers.
+
+// Doubles are passed in FPRs, so argument 'i' will be passed zero-extended
+// because it will be passed in a GPR.
+
+fn void f_fpr_tracking(double a, double b, double c, double d, double e, double f,
+                    double g, double h, char i) {}
+
+// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
+// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
+// available the widths are <= XLEN and FLEN, and should be expanded to
+// separate arguments in IR. They are passed by the same rules for returns,
+// but will be lowered to simple two-element structs if necessary (as LLVM IR
+// functions cannot return multiple values).
+
+// A struct containing just one floating-point real is passed as though it
+// were a standalone floating-point real.
+
+struct Double_s { double f; }
+
+fn void f_double_s_arg(Double_s a) {}
+
+fn Double_s f_ret_double_s() {
+  return {1.0};
+}
+
+// Check that structs containing two floating point values (FLEN <= width) are
+// expanded provided sufficient FPRs are available.
+
+struct Double_double_s { double f; double g; }
+struct Double_float_s { double f; float g; }
+
+fn void f_double_double_s_arg(Double_double_s a) {}
+
+fn Double_double_s f_ret_double_double_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_double_float_s_arg(Double_float_s a) {}
+
+fn Double_float_s f_ret_double_float_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_double_double_s_arg_insufficient_fprs(float a, double b, double c, double d,
+    double e, double f, double g, Double_double_s h) {}
+
+// Check that structs containing int+double values are expanded, provided
+// sufficient FPRs and GPRs are available. The integer components are neither
+// sign or zero-extended.
+
+struct Double_int8_s { double f; ichar i; }
+struct Double_uint8_s { double f; char i; }
+struct Double_int32_s { double f; int i; }
+struct Double_int64_s { double f; long i; }
+
+fn void f_double_int8_s_arg(Double_int8_s a) {}
+
+fn Double_int8_s f_ret_double_int8_s() {
+  return {1.0, 2};
+}
+
+fn void f_double_uint8_s_arg(Double_uint8_s a) {}
+
+fn Double_uint8_s f_ret_double_uint8_s() {
+  return {1.0, 2};
+}
+
+fn void f_double_int32_s_arg(Double_int32_s a) {}
+
+fn Double_int32_s f_ret_double_int32_s() {
+  return {1.0, 2};
+}
+
+fn void f_double_int64_s_arg(Double_int64_s a) {}
+
+fn Double_int64_s f_ret_double_int64_s() {
+  return {1.0, 2};
+}
+
+
+
+fn void f_double_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
+                                          int f, int g, int h, Double_int8_s i) {}
+
+fn void f_struct_double_int8_insufficient_fprs(float a, double b, double c, double d,
+                                           double e, double f, double g, double h, Double_int8_s i) {}
+
+// Test single or two-element structs that need flattening. e.g. those
+// containing nested structs, doubles in small arrays, zero-length structs etc.
+
+struct Doublearr1_s { double[1] a; }
+
+fn void f_doublearr1_s_arg(Doublearr1_s a) {}
+
+fn Doublearr1_s f_ret_doublearr1_s() {
+  return {{1.0}};
+}
+
+struct Doublearr2_s { double[2] a; }
+
+fn void f_doublearr2_s_arg(Doublearr2_s a) {}
+
+fn Doublearr2_s f_ret_doublearr2_s() {
+  return {{1.0, 2.0}};
+}
+
+struct Inner { double[1] f; }
+struct Doublearr2_tricky1_s { Inner[2] g; }
+
+fn void f_doublearr2_tricky1_s_arg(Doublearr2_tricky1_s a) {}
+
+fn Doublearr2_tricky1_s f_ret_doublearr2_tricky1_s() {
+  return {{{{1.0}}, {{2.0}}}};
+}
+
+// Test structs that should be passed according to the normal integer calling
+// convention.
+
+struct Int_double_int_s { int a; double b; int c; }
+
+fn void f_int_double_int_s_arg(Int_double_int_s a) {}
+
+fn Int_double_int_s f_ret_int_double_int_s() {
+  return {1, 2.0, 3};
+}
+
+struct Int64_double_s { long a; double b; }
+
+fn void f_int64_double_s_arg(Int64_double_s a) {}
+
+fn Int64_double_s f_ret_int64_double_s() {
+  return {1, 2.0};
+}
+
+struct Char_char_double_s { ichar a; ichar b; double c; }
+
+fn void f_char_char_double_s_arg(Char_char_double_s a) {}
+
+fn Char_char_double_s f_ret_char_char_double_s() {
+  return {1, 2, 3.0};
+}
+
+// Unions are always passed according to the integer calling convention, even
+// if they can only contain a double.
+
+union Double_u { double a; }
+
+fn void f_double_u_arg(Double_u a) {}
+
+fn Double_u f_ret_double_u() {
+  return {1.0};
+}
+
+// Test that we don't incorrectly think double+int/double+double structs will
+// be returned indirectly and thus have an off-by-one error for the number of
+// GPRs available (this is an edge case when structs > 2*XLEN are still
+// returned in registers). This includes complex doubles, which are treated as
+// double+double structs by the ABI.
+
+fn Double_int32_s f_ret_double_int32_s_double_int32_s_just_sufficient_gprs(
+    int a, int b, int c, int d, int e, int f, int g, Double_int32_s h) {
+  return {1.0, 2};
+}
+
+fn Double_double_s f_ret_double_double_s_double_int32_s_just_sufficient_gprs(
+    int a, int b, int c, int d, int e, int f, int g, Double_int32_s h) {
+  return {1.0, 2.0};
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_fpr_tracking(double %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, i8 zeroext %8) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_double_s_arg(double %0) #0 {
+entry:
+  %a = alloca %Double_s, align 8
+  store double %0, ptr %a, align 8
+  ret void
+}
+
+
+define double @test.f_ret_double_s() #0 {
+entry:
+  %literal = alloca %Double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 8, i1 false)
+  %0 = load double, ptr %literal, align 8
+  ret double %0
+}
+
+
+define void @test.f_double_double_s_arg(double %0, double %1) #0 {
+entry:
+  %a = alloca %Double_double_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 8
+  store double %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, double } @test.f_ret_double_double_s() #0 {
+entry:
+  %literal = alloca %Double_double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.1, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 8
+  %1 = load double, ptr %literal, align 8
+  %2 = insertvalue { double, double } undef, double %0, 0
+  %3 = insertvalue { double, double } %2, double %1, 1
+  ret { double, double } %3
+}
+
+
+define void @test.f_double_float_s_arg(double %0, float %1) #0 {
+entry:
+  %a = alloca %Double_float_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 8
+  store float %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, float } @test.f_ret_double_float_s() #0 {
+entry:
+  %literal = alloca %Double_float_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.2, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 8
+  %1 = load float, ptr %literal, align 8
+  %2 = insertvalue { double, float } undef, double %0, 0
+  %3 = insertvalue { double, float } %2, float %1, 1
+  ret { double, float } %3
+}
+
+
+define void @test.f_double_double_s_arg_insufficient_fprs(float %0, double %1, double %2, double %3, double %4, double %5, double %6, ptr align 8 %7) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_double_int8_s_arg(double %0, i8 %1) #0 {
+entry:
+  %a = alloca %Double_int8_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 8
+  store i8 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, i8 } @test.f_ret_double_int8_s() #0 {
+entry:
+  %literal = alloca %Double_int8_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.3, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 8
+  %1 = load i8, ptr %literal, align 8
+  %2 = insertvalue { double, i8 } undef, double %0, 0
+  %3 = insertvalue { double, i8 } %2, i8 %1, 1
+  ret { double, i8 } %3
+}
+
+
+define void @test.f_double_uint8_s_arg(double %0, i8 %1) #0 {
+entry:
+  %a = alloca %Double_uint8_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 8
+  store i8 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, i8 } @test.f_ret_double_uint8_s() #0 {
+entry:
+  %literal = alloca %Double_uint8_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.4, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 8
+  %1 = load i8, ptr %literal, align 8
+  %2 = insertvalue { double, i8 } undef, double %0, 0
+  %3 = insertvalue { double, i8 } %2, i8 %1, 1
+  ret { double, i8 } %3
+}
+
+
+define void @test.f_double_int32_s_arg(double %0, i32 %1) #0 {
+entry:
+  %a = alloca %Double_int32_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 8
+  store i32 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, i32 } @test.f_ret_double_int32_s() #0 {
+entry:
+  %literal = alloca %Double_int32_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.5, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 8
+  %1 = load i32, ptr %literal, align 8
+  %2 = insertvalue { double, i32 } undef, double %0, 0
+  %3 = insertvalue { double, i32 } %2, i32 %1, 1
+  ret { double, i32 } %3
+}
+
+
+define void @test.f_double_int64_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_double_int64_s(ptr noalias sret(%Double_int64_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Double_int64_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.6, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 16, i1 false)
+  ret void
+}
+
+
+define void @test.f_double_int8_s_arg_insufficient_gprs(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7, ptr align 8 %8) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_struct_double_int8_insufficient_fprs(float %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, ptr align 8 %8) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_doublearr1_s_arg(double %0) #0 {
+entry:
+  %a = alloca %Doublearr1_s, align 8
+  store double %0, ptr %a, align 8
+  ret void
+}
+
+
+define double @test.f_ret_doublearr1_s() #0 {
+entry:
+  %literal = alloca %Doublearr1_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.7, i32 8, i1 false)
+  %0 = load double, ptr %literal, align 8
+  ret double %0
+}
+
+
+define void @test.f_doublearr2_s_arg(double %0, double %1) #0 {
+entry:
+  %a = alloca %Doublearr2_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 8
+  store double %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, double } @test.f_ret_doublearr2_s() #0 {
+entry:
+  %literal = alloca %Doublearr2_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.8, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 8
+  %1 = load double, ptr %literal, align 8
+  %2 = insertvalue { double, double } undef, double %0, 0
+  %3 = insertvalue { double, double } %2, double %1, 1
+  ret { double, double } %3
+}
+
+
+define void @test.f_doublearr2_tricky1_s_arg(double %0, double %1) #0 {
+entry:
+  %a = alloca %Doublearr2_tricky1_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 8
+  store double %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, double } @test.f_ret_doublearr2_tricky1_s() #0 {
+entry:
+  %literal = alloca %Doublearr2_tricky1_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.9, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 8
+  %1 = load double, ptr %literal, align 8
+  %2 = insertvalue { double, double } undef, double %0, 0
+  %3 = insertvalue { double, double } %2, double %1, 1
+  ret { double, double } %3
+}
+
+
+define void @test.f_int_double_int_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_int_double_int_s(ptr noalias sret(%Int_double_int_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Int_double_int_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.10, i32 24, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 24, i1 false)
+  ret void
+}
+
+
+define void @test.f_int64_double_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_int64_double_s(ptr noalias sret(%Int64_double_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Int64_double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.11, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 16, i1 false)
+  ret void
+}
+
+
+define void @test.f_char_char_double_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_char_char_double_s(ptr noalias sret(%Char_char_double_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Char_char_double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.12, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 16, i1 false)
+  ret void
+}
+
+
+define void @test.f_double_u_arg(i64 %0) #0 {
+entry:
+  %a = alloca %Double_u, align 8
+  store i64 %0, ptr %a, align 8
+  ret void
+}
+
+
+define i64 @test.f_ret_double_u() #0 {
+entry:
+  %literal = alloca %Double_u, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.13, i32 8, i1 false)
+  %0 = load i64, ptr %literal, align 8
+  ret i64 %0
+}
+
+
+define { double, i32 } @test.f_ret_double_int32_s_double_int32_s_just_sufficient_gprs(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, double %7, i32 %8) #0 {
+entry:
+  %h = alloca %Double_int32_s, align 8
+  %literal = alloca %Double_int32_s, align 8
+  store double %7, ptr %h, align 8
+  %ptradd = getelementptr inbounds i8, ptr %h, i32 8
+  store i32 %8, ptr %h, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.14, i32 16, i1 false)
+  %9 = load double, ptr %literal, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i32 8
+  %10 = load i32, ptr %literal, align 8
+  %11 = insertvalue { double, i32 } undef, double %9, 0
+  %12 = insertvalue { double, i32 } %11, i32 %10, 1
+  ret { double, i32 } %12
+}
+
+
+define { double, double } @test.f_ret_double_double_s_double_int32_s_just_sufficient_gprs(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, double %7, i32 %8) #0 {
+entry:
+  %h = alloca %Double_int32_s, align 8
+  %literal = alloca %Double_double_s, align 8
+  store double %7, ptr %h, align 8
+  %ptradd = getelementptr inbounds i8, ptr %h, i32 8
+  store i32 %8, ptr %h, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.15, i32 16, i1 false)
+  %9 = load double, ptr %literal, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i32 8
+  %10 = load double, ptr %literal, align 8
+  %11 = insertvalue { double, double } undef, double %9, 0
+  %12 = insertvalue { double, double } %11, double %10, 1
+  ret { double, double } %12
+}
diff --git a/test/test_suite7/abi/riscv32-ilp32f-abi.c3t b/test/test_suite7/abi/riscv32-ilp32f-abi.c3t
new file mode 100644
index 000000000..8da477614
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32f-abi.c3t
@@ -0,0 +1,89 @@
+// #target: linux-riscv32
+// #opt: --riscvfloat=float
+module test;
+// Doubles are still passed in GPRs, so the 'e' argument will be anyext as
+// GPRs are exhausted.
+fn void f_fpr_tracking(double a, double b, double c, double d, ichar e) {}
+
+// Lowering for doubles is unnmodified, as 64 > FLEN.
+struct Double_s { double d; }
+
+fn void f_double_s_arg(Double_s a) {}
+
+fn Double_s f_ret_double_s() {
+  return {1.0};
+}
+
+struct Double_double_s { double d; double e; }
+
+fn void f_double_double_s_arg(Double_double_s a) {}
+
+fn Double_double_s f_ret_double_double_s() {
+  return {1.0, 2.0};
+}
+
+struct Double_int8_s { double d; long i; }
+
+struct Int_double_s { int a; double b; }
+
+fn void f_int_double_s_arg(Int_double_s a) {}
+
+fn Int_double_s f_ret_int_double_s() {
+  return {1, 2.0};
+}
+
+/* #expect: test.ll
+
+
+define void @test.f_fpr_tracking(double %0, double %1, double %2, double %3, i8 %4) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_double_s_arg(i64 %0) #0 {
+entry:
+  %a = alloca %Double_s, align 8
+  store i64 %0, ptr %a, align 8
+  ret void
+}
+
+
+define i64 @test.f_ret_double_s() #0 {
+entry:
+  %literal = alloca %Double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 8, i1 false)
+  %0 = load i64, ptr %literal, align 8
+  ret i64 %0
+}
+
+
+define void @test.f_double_double_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_double_double_s(ptr noalias sret(%Double_double_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Double_double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.1, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 16, i1 false)
+  ret void
+}
+
+
+define void @test.f_int_double_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_int_double_s(ptr noalias sret(%Int_double_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Int_double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.2, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 16, i1 false)
+  ret void
+}
+
diff --git a/test/test_suite7/abi/riscv32-ilp32f-ilp32d-abi-1.c3t b/test/test_suite7/abi/riscv32-ilp32f-ilp32d-abi-1.c3t
new file mode 100644
index 000000000..cf407ed12
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32f-ilp32d-abi-1.c3t
@@ -0,0 +1,200 @@
+// #target: linux-riscv32
+// #opt: --riscvfloat=float
+module test;
+
+// Verify that the tracking of used GPRs and FPRs works correctly by checking
+// that small integers are sign/zero extended when passed in registers.
+
+// Floats are passed in FPRs, so argument 'i' will be passed zero-extended
+// because it will be passed in a GPR.
+
+fn void f_fpr_tracking(float a, float b, float c, float d, float e, float f,
+                    float g, float h, char i) {}
+
+// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
+// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
+// available the widths are <= XLEN and FLEN, and should be expanded to
+// separate arguments in IR. They are passed by the same rules for returns,
+// but will be lowered to simple two-element structs if necessary (as LLVM IR
+// functions cannot return multiple values).
+
+// A struct containing just one floating-point real is passed as though it
+// were a standalone floating-point real.
+
+struct Float_s { float f; }
+
+fn void f_float_s_arg(Float_s a) {}
+
+fn Float_s f_ret_float_s() {
+  return {1.0};
+}
+
+
+// Check that structs containing two float values (FLEN <= width) are expanded
+// provided sufficient FPRs are available.
+
+struct Float_float_s { float f; float g; }
+
+fn void f_float_float_s_arg(Float_float_s a) {}
+
+fn Float_float_s f_ret_float_float_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_float_float_s_arg_insufficient_fprs(float a, float b, float c, float d,
+    float e, float f, float g, Float_float_s h) {}
+
+// Check that structs containing int+float values are expanded, provided
+// sufficient FPRs and GPRs are available. The integer components are neither
+// sign or zero-extended.
+
+struct Float_int8_s { float f; ichar i; }
+struct Float_uint8_s { float f; char i; }
+struct Float_int32_s { float f; int i; }
+struct Float_int64_s { float f; long i; }
+
+fn void f_float_int8_s_arg(Float_int8_s a) {}
+
+fn Float_int8_s f_ret_float_int8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_uint8_s_arg(Float_uint8_s a) {}
+
+fn Float_uint8_s f_ret_float_uint8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int32_s_arg(Float_int32_s a) {}
+
+fn Float_int32_s f_ret_float_int32_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int64_s_arg(Float_int64_s a) {}
+
+fn Float_int64_s f_ret_float_int64_s() {
+  return {1.0, 2};
+}
+
+
+fn void f_float_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
+                                          int f, int g, int h, Float_int8_s i) {}
+
+fn void f_struct_float_int8_insufficient_fprs(float a, float b, float c, float d,
+                                           float e, float f, float g, float h, Float_int8_s i) {}
+
+// Test single or two-element structs that need flattening. e.g. those
+// containing nested structs, floats in small arrays, zero-length structs etc.
+
+struct Floatarr1_s { float[1] a; }
+
+fn void f_floatarr1_s_arg(Floatarr1_s a) {}
+
+fn Floatarr1_s f_ret_floatarr1_s() {
+  return {{1.0}};
+}
+
+struct Floatarr2_s { float[2] a; }
+
+fn void f_floatarr2_s_arg(Floatarr2_s a) {}
+
+fn Floatarr2_s f_ret_floatarr2_s() {
+  return {{1.0, 2.0}};
+}
+
+struct Inner { float[1] f; }
+struct Floatarr2_tricky1_s { Inner[2] g; }
+
+fn void f_floatarr2_tricky1_s_arg(Floatarr2_tricky1_s a) {}
+
+fn Floatarr2_tricky1_s f_ret_floatarr2_tricky1_s() {
+  return {{{{1.0}}, {{2.0}}}};
+}
+
+// Test structs that should be passed according to the normal integer calling
+// convention.
+
+struct Int_float_int_s { int a; float b; int c; }
+
+fn void f_int_float_int_s_arg(Int_float_int_s a) {}
+
+fn Int_float_int_s f_ret_int_float_int_s() {
+  return {1, 2.0, 3};
+}
+
+struct Int64_float_s { long a; float b; }
+
+fn void f_int64_float_s_arg(Int64_float_s a) {}
+
+fn Int64_float_s f_ret_int64_float_s() {
+  return {1, 2.0};
+}
+
+struct Char_char_float_s { char a; char b; float c; }
+
+fn void f_char_char_float_s_arg(Char_char_float_s a) {}
+
+fn Char_char_float_s f_ret_char_char_float_s() {
+  return {1, 2, 3.0};
+}
+
+// Unions are always passed according to the integer calling convention, even
+// if they can only contain a float.
+
+union Float_u { float a; }
+
+fn void f_float_u_arg(Float_u a) {}
+
+fn Float_u f_ret_float_u() {
+  return {1.0};
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_fpr_tracking(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i8 zeroext %8)
+
+define void @test.f_float_s_arg(float %0)
+define float @test.f_ret_float_s()
+
+define void @test.f_float_float_s_arg(float %0, float %1)
+define { float, float } @test.f_ret_float_float_s()
+
+define void @test.f_float_float_s_arg_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, [2 x i32] %7) #0 {
+
+define void @test.f_float_int8_s_arg(float %0, i8 %1)
+define { float, i8 } @test.f_ret_float_int8_s()
+
+define void @test.f_float_uint8_s_arg(float %0, i8 %1)
+define { float, i8 } @test.f_ret_float_uint8_s()
+
+define void @test.f_float_int32_s_arg(float %0, i32 %1)
+define { float, i32 } @test.f_ret_float_int32_s()
+
+define void @test.f_float_int64_s_arg(ptr align 8 %0)
+define void @test.f_ret_float_int64_s(ptr noalias sret(%Float_int64_s) align 8 %0)
+
+define void @test.f_float_int8_s_arg_insufficient_gprs(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7, [2 x i32] %8)
+define void @test.f_struct_float_int8_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, [2 x i32] %8)
+
+define void @test.f_floatarr1_s_arg(float %0)
+define float @test.f_ret_floatarr1_s()
+
+define void @test.f_floatarr2_s_arg(float %0, float %1)
+define { float, float } @test.f_ret_floatarr2_s()
+
+define void @test.f_floatarr2_tricky1_s_arg(float %0, float %1)
+define { float, float } @test.f_ret_floatarr2_tricky1_s()
+
+define void @test.f_int_float_int_s_arg(ptr align 4 %0)
+define void @test.f_ret_int_float_int_s(ptr noalias sret(%Int_float_int_s) align 4 %0)
+
+define void @test.f_int64_float_s_arg(ptr align 8 %0)
+define void @test.f_ret_int64_float_s(ptr noalias sret(%Int64_float_s) align 8 %0)
+
+define void @test.f_char_char_float_s_arg([2 x i32] %0)
+define [2 x i32] @test.f_ret_char_char_float_s()
+
+define void @test.f_float_u_arg(i32 %0)
+define i32 @test.f_ret_float_u()
\ No newline at end of file
diff --git a/test/test_suite7/abi/riscv32-ilp32f-ilp32d-abi-2.c3t b/test/test_suite7/abi/riscv32-ilp32f-ilp32d-abi-2.c3t
new file mode 100644
index 000000000..29668b915
--- /dev/null
+++ b/test/test_suite7/abi/riscv32-ilp32f-ilp32d-abi-2.c3t
@@ -0,0 +1,430 @@
+// #target: linux-riscv32
+// #opt: --riscvfloat=double
+module test;
+
+// Verify that the tracking of used GPRs and FPRs works correctly by checking
+// that small integers are sign/zero extended when passed in registers.
+
+// Floats are passed in FPRs, so argument 'i' will be passed zero-extended
+// because it will be passed in a GPR.
+
+fn void f_fpr_tracking(float a, float b, float c, float d, float e, float f,
+                    float g, float h, char i) {}
+
+// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
+// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
+// available the widths are <= XLEN and FLEN, and should be expanded to
+// separate arguments in IR. They are passed by the same rules for returns,
+// but will be lowered to simple two-element structs if necessary (as LLVM IR
+// functions cannot return multiple values).
+
+// A struct containing just one floating-point real is passed as though it
+// were a standalone floating-point real.
+
+struct Float_s { float f; }
+
+fn void f_float_s_arg(Float_s a) {}
+
+fn Float_s f_ret_float_s() {
+  return {1.0};
+}
+
+
+// Check that structs containing two float values (FLEN <= width) are expanded
+// provided sufficient FPRs are available.
+
+struct Float_float_s { float f; float g; }
+
+fn void f_float_float_s_arg(Float_float_s a) {}
+
+fn Float_float_s f_ret_float_float_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_float_float_s_arg_insufficient_fprs(float a, float b, float c, float d,
+    float e, float f, float g, Float_float_s h) {}
+
+// Check that structs containing int+float values are expanded, provided
+// sufficient FPRs and GPRs are available. The integer components are neither
+// sign or zero-extended.
+
+struct Float_int8_s { float f; ichar i; }
+struct Float_uint8_s { float f; char i; }
+struct Float_int32_s { float f; int i; }
+struct Float_int64_s { float f; long i; }
+
+fn void f_float_int8_s_arg(Float_int8_s a) {}
+
+fn Float_int8_s f_ret_float_int8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_uint8_s_arg(Float_uint8_s a) {}
+
+fn Float_uint8_s f_ret_float_uint8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int32_s_arg(Float_int32_s a) {}
+
+fn Float_int32_s f_ret_float_int32_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int64_s_arg(Float_int64_s a) {}
+
+fn Float_int64_s f_ret_float_int64_s() {
+  return {1.0, 2};
+}
+
+
+fn void f_float_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
+                                          int f, int g, int h, Float_int8_s i) {}
+
+fn void f_struct_float_int8_insufficient_fprs(float a, float b, float c, float d,
+                                           float e, float f, float g, float h, Float_int8_s i) {}
+
+// Test single or two-element structs that need flattening. e.g. those
+// containing nested structs, floats in small arrays, zero-length structs etc.
+
+struct Floatarr1_s { float[1] a; }
+
+fn void f_floatarr1_s_arg(Floatarr1_s a) {}
+
+fn Floatarr1_s f_ret_floatarr1_s() {
+  return {{1.0}};
+}
+
+struct Floatarr2_s { float[2] a; }
+
+fn void f_floatarr2_s_arg(Floatarr2_s a) {}
+
+fn Floatarr2_s f_ret_floatarr2_s() {
+  return {{1.0, 2.0}};
+}
+
+struct Inner { float[1] f; }
+struct Floatarr2_tricky1_s { Inner[2] g; }
+
+fn void f_floatarr2_tricky1_s_arg(Floatarr2_tricky1_s a) {}
+
+fn Floatarr2_tricky1_s f_ret_floatarr2_tricky1_s() {
+  return {{{{1.0}}, {{2.0}}}};
+}
+
+// Test structs that should be passed according to the normal integer calling
+// convention.
+
+struct Int_float_int_s { int a; float b; int c; }
+
+fn void f_int_float_int_s_arg(Int_float_int_s a) {}
+
+fn Int_float_int_s f_ret_int_float_int_s() {
+  return {1, 2.0, 3};
+}
+
+struct Int64_float_s { long a; float b; }
+
+fn void f_int64_float_s_arg(Int64_float_s a) {}
+
+fn Int64_float_s f_ret_int64_float_s() {
+  return {1, 2.0};
+}
+
+struct Char_char_float_s { char a; char b; float c; }
+
+fn void f_char_char_float_s_arg(Char_char_float_s a) {}
+
+fn Char_char_float_s f_ret_char_char_float_s() {
+  return {1, 2, 3.0};
+}
+
+// Unions are always passed according to the integer calling convention, even
+// if they can only contain a float.
+
+union Float_u { float a; }
+
+fn void f_float_u_arg(Float_u a) {}
+
+fn Float_u f_ret_float_u() {
+  return {1.0};
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_fpr_tracking(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i8 zeroext %8) #0 {
+entry:
+  ret void
+}
+
+define void @test.f_float_s_arg(float %0) #0 {
+entry:
+  %a = alloca %Float_s, align 4
+  store float %0, ptr %a, align 4
+  ret void
+}
+
+define float @test.f_ret_float_s() #0 {
+entry:
+  %literal = alloca %Float_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 4, i1 false)
+  %0 = load float, ptr %literal, align 4
+  ret float %0
+}
+
+define void @test.f_float_float_s_arg(float %0, float %1) #0 {
+entry:
+  %a = alloca %Float_float_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 4
+  store float %1, ptr %a, align 4
+  ret void
+}
+
+define { float, float } @test.f_ret_float_float_s() #0 {
+entry:
+  %literal = alloca %Float_float_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.1, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %1 = load float, ptr %literal, align 4
+  %2 = insertvalue { float, float } undef, float %0, 0
+  %3 = insertvalue { float, float } %2, float %1, 1
+  ret { float, float } %3
+}
+
+
+define void @test.f_float_float_s_arg_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, [2 x i32] %7) #0 {
+entry:
+  %h = alloca %Float_float_s, align 4
+  store [2 x i32] %7, ptr %h, align 4
+  ret void
+}
+
+
+define void @test.f_float_int8_s_arg(float %0, i8 %1) #0 {
+entry:
+  %a = alloca %Float_int8_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 4
+  store i8 %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, i8 } @test.f_ret_float_int8_s() #0 {
+entry:
+  %literal = alloca %Float_int8_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.2, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %1 = load i8, ptr %literal, align 4
+  %2 = insertvalue { float, i8 } undef, float %0, 0
+  %3 = insertvalue { float, i8 } %2, i8 %1, 1
+  ret { float, i8 } %3
+}
+
+
+define void @test.f_float_uint8_s_arg(float %0, i8 %1) #0 {
+entry:
+  %a = alloca %Float_uint8_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 4
+  store i8 %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, i8 } @test.f_ret_float_uint8_s() #0 {
+entry:
+  %literal = alloca %Float_uint8_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.3, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %1 = load i8, ptr %literal, align 4
+  %2 = insertvalue { float, i8 } undef, float %0, 0
+  %3 = insertvalue { float, i8 } %2, i8 %1, 1
+  ret { float, i8 } %3
+}
+
+
+define void @test.f_float_int32_s_arg(float %0, i32 %1) #0 {
+entry:
+  %a = alloca %Float_int32_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 4
+  store i32 %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, i32 } @test.f_ret_float_int32_s() #0 {
+entry:
+  %literal = alloca %Float_int32_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.4, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %1 = load i32, ptr %literal, align 4
+  %2 = insertvalue { float, i32 } undef, float %0, 0
+  %3 = insertvalue { float, i32 } %2, i32 %1, 1
+  ret { float, i32 } %3
+}
+
+
+define void @test.f_float_int64_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_float_int64_s(ptr noalias sret(%Float_int64_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Float_int64_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.5, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 16, i1 false)
+  ret void
+}
+
+
+define void @test.f_float_int8_s_arg_insufficient_gprs(i32 %0, i32 %1, i32 %2, i32 %3, i32 %4, i32 %5, i32 %6, i32 %7, [2 x i32] %8) #0 {
+entry:
+  %i = alloca %Float_int8_s, align 4
+  store [2 x i32] %8, ptr %i, align 4
+  ret void
+}
+
+
+define void @test.f_struct_float_int8_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, [2 x i32] %8) #0 {
+entry:
+  %i = alloca %Float_int8_s, align 4
+  store [2 x i32] %8, ptr %i, align 4
+  ret void
+}
+
+
+define void @test.f_floatarr1_s_arg(float %0) #0 {
+entry:
+  %a = alloca %Floatarr1_s, align 4
+  store float %0, ptr %a, align 4
+  ret void
+}
+
+
+define float @test.f_ret_floatarr1_s() #0 {
+entry:
+  %literal = alloca %Floatarr1_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.6, i32 4, i1 false)
+  %0 = load float, ptr %literal, align 4
+  ret float %0
+}
+
+
+define void @test.f_floatarr2_s_arg(float %0, float %1) #0 {
+entry:
+  %a = alloca %Floatarr2_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 4
+  store float %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, float } @test.f_ret_floatarr2_s() #0 {
+entry:
+  %literal = alloca %Floatarr2_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.7, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %1 = load float, ptr %literal, align 4
+  %2 = insertvalue { float, float } undef, float %0, 0
+  %3 = insertvalue { float, float } %2, float %1, 1
+  ret { float, float } %3
+}
+
+
+define void @test.f_floatarr2_tricky1_s_arg(float %0, float %1) #0 {
+entry:
+  %a = alloca %Floatarr2_tricky1_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i32 4
+  store float %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, float } @test.f_ret_floatarr2_tricky1_s() #0 {
+entry:
+  %literal = alloca %Floatarr2_tricky1_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.8, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  %1 = load float, ptr %literal, align 4
+  %2 = insertvalue { float, float } undef, float %0, 0
+  %3 = insertvalue { float, float } %2, float %1, 1
+  ret { float, float } %3
+}
+
+
+define void @test.f_int_float_int_s_arg(ptr align 4 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_int_float_int_s(ptr noalias sret(%Int_float_int_s) align 4 %0) #0 {
+entry:
+  %literal = alloca %Int_float_int_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.9, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 12, i1 false)
+  ret void
+}
+
+
+define void @test.f_int64_float_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_int64_float_s(ptr noalias sret(%Int64_float_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Int64_float_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.10, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 16, i1 false)
+  ret void
+}
+
+
+define void @test.f_char_char_float_s_arg([2 x i32] %0) #0 {
+entry:
+  %a = alloca %Char_char_float_s, align 4
+  store [2 x i32] %0, ptr %a, align 4
+  ret void
+}
+
+
+define [2 x i32] @test.f_ret_char_char_float_s() #0 {
+entry:
+  %literal = alloca %Char_char_float_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.11, i32 8, i1 false)
+  %0 = load [2 x i32], ptr %literal, align 4
+  ret [2 x i32] %0
+}
+
+
+define void @test.f_float_u_arg(i32 %0) #0 {
+entry:
+  %a = alloca %Float_u, align 4
+  store i32 %0, ptr %a, align 4
+  ret void
+}
+
+
+define i32 @test.f_ret_float_u() #0 {
+entry:
+  %literal = alloca %Float_u, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.12, i32 4, i1 false)
+  %0 = load i32, ptr %literal, align 4
+  ret i32 %0
+}
diff --git a/test/test_suite7/abi/riscv64-lp64-abi.c3t b/test/test_suite7/abi/riscv64-lp64-abi.c3t
new file mode 100644
index 000000000..32afce841
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64-abi.c3t
@@ -0,0 +1,45 @@
+// #target: linux-riscv64
+module test;
+
+struct Large {
+  long a, b, c, d;
+}
+
+def V32i8 = char[<32>];
+
+fn int f_scalar_stack_1(int a, int128 b, float c, float128 d, V32i8 e,
+                     char f, char g, char h) {
+  return g + h;
+}
+
+fn Large f_scalar_stack_2(double a, int128 b, float128 c, V32i8 d,
+                              char e, ichar f, char g) {
+  return (Large) {(long)(a), e, f, g};
+}
+
+/* #expect: test.ll
+
+define signext i32 @test.f_scalar_stack_1(i32 signext %0, i128 %1, float %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7)
+entry:
+  %zext = zext i8 %6 to i32
+  %zext1 = zext i8 %7 to i32
+  %add = add i32 %zext, %zext1
+  ret i32 %add
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 8 %0, double %1, i128 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 8
+  %fpsi = fptosi double %1 to i64
+  store i64 %fpsi, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %zext = zext i8 %5 to i64
+  store i64 %zext, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i64 16
+  %sext = sext i8 %6 to i64
+  store i64 %sext, ptr %ptradd1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i64 24
+  %zext3 = zext i8 %7 to i64
+  store i64 %zext3, ptr %ptradd2, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 32, i1 false)
+  ret void
diff --git a/test/test_suite7/abi/riscv64-lp64-lp64f-abi-1.c3t b/test/test_suite7/abi/riscv64-lp64-lp64f-abi-1.c3t
new file mode 100644
index 000000000..bd0ea226d
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64-lp64f-abi-1.c3t
@@ -0,0 +1,51 @@
+// #target: linux-riscv64
+module test;
+
+struct Large {
+  long a, b, c, d;
+}
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(int a, int128 b, double c, float128 d, char[<32>] e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(double a, int128 b, float128 c, char[<32>] d,
+                              char e, ichar f, char g) {
+  return {(long)a, e, f, g};
+}
+
+/* #expect: test.ll
+
+define signext i32 @test.f_scalar_stack_1(i32 signext %0, i128 %1, double %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %sext = sext i8 %6 to i32
+  %zext = zext i8 %7 to i32
+  %add = add i32 %sext, %zext
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 8 %0, double %1, i128 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 8
+  %fpsi = fptosi double %1 to i64
+  store i64 %fpsi, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %zext = zext i8 %5 to i64
+  store i64 %zext, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i64 16
+  %sext = sext i8 %6 to i64
+  store i64 %sext, ptr %ptradd1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i64 24
+  %zext3 = zext i8 %7 to i64
+  store i64 %zext3, ptr %ptradd2, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 32, i1 false)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/riscv64-lp64-lp64f-abi-2.c3t b/test/test_suite7/abi/riscv64-lp64-lp64f-abi-2.c3t
new file mode 100644
index 000000000..d77e6f5bd
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64-lp64f-abi-2.c3t
@@ -0,0 +1,52 @@
+// #target: linux-riscv64
+// #opt: --riscvfloat=float
+module test;
+
+struct Large {
+  long a, b, c, d;
+}
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(int a, int128 b, double c, float128 d, char[<32>] e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_2(double a, int128 b, float128 c, char[<32>] d,
+                              char e, ichar f, char g) {
+  return {(long)a, e, f, g};
+}
+
+/* #expect: test.ll
+
+define signext i32 @test.f_scalar_stack_1(i32 signext %0, i128 %1, double %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %sext = sext i8 %6 to i32
+  %zext = zext i8 %7 to i32
+  %add = add i32 %sext, %zext
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.f_scalar_stack_2(ptr noalias sret(%Large) align 8 %0, double %1, i128 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7) #0 {
+entry:
+  %literal = alloca %Large, align 8
+  %fpsi = fptosi double %1 to i64
+  store i64 %fpsi, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %zext = zext i8 %5 to i64
+  store i64 %zext, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i64 16
+  %sext = sext i8 %6 to i64
+  store i64 %sext, ptr %ptradd1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i64 24
+  %zext3 = zext i8 %7 to i64
+  store i64 %zext3, ptr %ptradd2, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 32, i1 false)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-1.c3t b/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-1.c3t
new file mode 100644
index 000000000..1c1b89eb4
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-1.c3t
@@ -0,0 +1,206 @@
+// #target: linux-riscv64
+module test;
+
+fn void f_void() {}
+
+fn bool f_scalar_0(bool x) { return x; }
+fn int f_scalar_1(ichar x) { return x; }
+fn char f_scalar_2(char x) { return x; }
+fn uint f_scalar_3(int x) { return x; }
+fn long f_scalar_4(long x) { return x; }
+fn float f_fp_scalar_1(float x) { return x; }
+fn double f_fp_scalar_2(double x) { return x; }
+fn float128 f_fp_scalar_3(float128 x) { return x; }
+
+// Aggregates <= 2*xlen may be passed in registers, so will be coerced to
+// integer arguments. The rules for return are the same.
+
+struct Tiny {
+  ushort a, b, c, d;
+}
+
+fn void f_agg_tiny(Tiny x) {
+  x.a += x.b;
+  x.c += x.d;
+}
+
+fn Tiny f_agg_tiny_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v4i16(short[<4>] x) {
+  x[0] = x[1];
+  x[2] = x[3];
+}
+
+fn short[<4>] f_vec_tiny_v4i16_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v1i64(long[<1>] x) {
+  x[0] = 114;
+}
+
+fn long[<1>] f_vec_tiny_v1i64_ret() {
+  return {1};
+}
+
+struct Small {
+  long a;
+  long *b;
+}
+
+fn void f_agg_small(Small x) {
+  x.a += *x.b;
+  x.b = &x.a;
+}
+
+fn Small f_agg_small_ret() {
+  return {1, null};
+}
+
+fn void f_vec_small_v8i16(short[<8>] x) {
+  x[0] = x[7];
+}
+
+fn short[<8>] f_vec_small_v8i16_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+fn void f_vec_small_v1i128(int128[<1>] x) {
+  x[0] = 114;
+}
+
+fn int128[<1>] f_vec_small_v1i128_ret() {
+  return {1};
+}
+
+// Aggregates of 2*xlen size and 2*xlen alignment should be coerced to a
+// single 2*xlen-sized argument, to ensure that alignment can be maintained if
+// passed on the stack.
+
+struct Small_aligned {
+  int128 a;
+}
+
+fn void f_agg_small_aligned(Small_aligned x) {
+  x.a += x.a;
+}
+
+fn Small_aligned f_agg_small_aligned_ret(Small_aligned x) {
+  return {10};
+}
+
+// Aggregates greater > 2*xlen will be passed and returned indirectly
+struct Large {
+  long a, b, c, d;
+}
+
+fn void f_agg_large(Large x) {
+  x.a = x.b + x.c + x.d;
+}
+
+// The address where the struct should be written to will be the first
+// argument
+fn Large f_agg_large_ret(int i, ichar j) {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_large_v32i8(char[<32>] x) {
+  x[0] = x[7];
+}
+
+fn char[<32>] f_vec_large_v32i8_ret() {
+  return { [1] = 1, [31] = 31 };
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(Tiny a, Small b, Small_aligned c,
+                     Large d, char e, ichar f, char g, ichar h) {
+  return g + h;
+}
+
+fn int f_scalar_stack_2(int a, int128 b, long c, float128 d, char[<32>] e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_3(uint a, int128 b, float128 c, char[<32>] d,
+                              char e, ichar f, char g) {
+  return {a, e, f, g};
+}
+
+// Ensure that ABI lowering happens as expected for vararg calls.
+// Specifically, ensure that signext is emitted for varargs that will be
+// passed in registers but not on the stack. Ensure this takes into account
+// the use of "aligned" register pairs for varargs with 2*xlen alignment.
+
+extern fn int f_va_callee(int, ...);
+
+fn void f_va_caller() {
+	float128 fq;
+  f_va_callee(1, 2, 3i64, 4.0f, 5.0, (Tiny){6, 7, 8, 9},
+              (Small){10, null}, (Small_aligned){11},
+              (Large){12, 13, 14, 15});
+  f_va_callee(1, 2, 3, 4, fq, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, (Small_aligned){5}, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, (Small){5,null}, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, fq, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, (Small_aligned){6}, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, (Small){6, null}, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, fq, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, (Small_aligned){7}, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, (Small){7, null}, 8, 9);
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_void()
+define zeroext i8 @test.f_scalar_0(i8 zeroext %0)
+define signext i32 @test.f_scalar_1(i8 signext %0)
+define zeroext i8 @test.f_scalar_2(i8 zeroext %0)
+define signext i32 @test.f_scalar_3(i32 signext %0)
+define i64 @test.f_scalar_4(i64 %0)
+define float @test.f_fp_scalar_1(float %0)
+define double @test.f_fp_scalar_2(double %0)
+define fp128 @test.f_fp_scalar_3(fp128 %0)
+define void @test.f_agg_tiny(i64 %0)
+define i64 @test.f_agg_tiny_ret()
+define void @test.f_vec_tiny_v4i16(i64 %0)
+define i64 @test.f_vec_tiny_v4i16_ret()
+define void @test.f_vec_tiny_v1i64(i64 %0)
+define i64 @test.f_vec_tiny_v1i64_ret()
+define void @test.f_agg_small([2 x i64] %0)
+define [2 x i64] @test.f_agg_small_ret()
+define void @test.f_vec_small_v8i16(i128 %0)
+define i128 @test.f_vec_small_v8i16_ret()
+define void @test.f_vec_small_v1i128(i128 %0)
+define i128 @test.f_vec_small_v1i128_ret()
+define void @test.f_agg_small_aligned(i128 %0)
+define i128 @test.f_agg_small_aligned_ret(i128 %0)
+define void @test.f_agg_large(ptr align 8 %0)
+define void @test.f_agg_large_ret(ptr noalias sret(%Large) align 8 %0, i32 signext %1, i8 signext %2)
+define void @test.f_vec_large_v32i8(ptr align 32 %0)
+define void @test.f_vec_large_v32i8_ret(ptr noalias sret(<32 x i8>) align 32 %0)
+define signext i32 @test.f_scalar_stack_1(i64 %0, [2 x i64] %1, i128 %2, ptr align 8 %3, i8 zeroext %4, i8 signext %5, i8 %6, i8 %7)
+define signext i32 @test.f_scalar_stack_2(i32 signext %0, i128 %1, i64 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7)
+define void @test.f_scalar_stack_3(ptr noalias sret(%Large) align 8 %0, i32 signext %1, i128 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7)
+declare signext i32 @f_va_callee(i32 signext, ...)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 8 %literal3, i32 32, i1 false)
+  %3 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i64 3, double 4.000000e+00, double 5.000000e+00, i64 %0, [2 x i64] %1, i128 %2, ptr align 8 %indirectarg)
+  %5 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, fp128 %4, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %7 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i128 %6, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %9 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, [2 x i64] %8, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %11 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, fp128 %10, i32 7, i32 8, i32 9)
+  %13 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i128 %12, i32 7, i32 8, i32 9)
+  %15 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, [2 x i64] %14, i32 signext 7, i32 8, i32 9)
+  %17 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, fp128 %16, i32 8, i32 9)
+  %19 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, i128 %18, i32 8, i32 9)
+  %21 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, [2 x i64] %20, i32 8, i32 9)
\ No newline at end of file
diff --git a/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-2.c3t b/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-2.c3t
new file mode 100644
index 000000000..23a674e8f
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-2.c3t
@@ -0,0 +1,207 @@
+// #target: linux-riscv64
+// #opt: --riscvfloat=float
+module test;
+
+fn void f_void() {}
+
+fn bool f_scalar_0(bool x) { return x; }
+fn int f_scalar_1(ichar x) { return x; }
+fn char f_scalar_2(char x) { return x; }
+fn uint f_scalar_3(int x) { return x; }
+fn long f_scalar_4(long x) { return x; }
+fn float f_fp_scalar_1(float x) { return x; }
+fn double f_fp_scalar_2(double x) { return x; }
+fn float128 f_fp_scalar_3(float128 x) { return x; }
+
+// Aggregates <= 2*xlen may be passed in registers, so will be coerced to
+// integer arguments. The rules for return are the same.
+
+struct Tiny {
+  ushort a, b, c, d;
+}
+
+fn void f_agg_tiny(Tiny x) {
+  x.a += x.b;
+  x.c += x.d;
+}
+
+fn Tiny f_agg_tiny_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v4i16(short[<4>] x) {
+  x[0] = x[1];
+  x[2] = x[3];
+}
+
+fn short[<4>] f_vec_tiny_v4i16_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v1i64(long[<1>] x) {
+  x[0] = 114;
+}
+
+fn long[<1>] f_vec_tiny_v1i64_ret() {
+  return {1};
+}
+
+struct Small {
+  long a;
+  long *b;
+}
+
+fn void f_agg_small(Small x) {
+  x.a += *x.b;
+  x.b = &x.a;
+}
+
+fn Small f_agg_small_ret() {
+  return {1, null};
+}
+
+fn void f_vec_small_v8i16(short[<8>] x) {
+  x[0] = x[7];
+}
+
+fn short[<8>] f_vec_small_v8i16_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+fn void f_vec_small_v1i128(int128[<1>] x) {
+  x[0] = 114;
+}
+
+fn int128[<1>] f_vec_small_v1i128_ret() {
+  return {1};
+}
+
+// Aggregates of 2*xlen size and 2*xlen alignment should be coerced to a
+// single 2*xlen-sized argument, to ensure that alignment can be maintained if
+// passed on the stack.
+
+struct Small_aligned {
+  int128 a;
+}
+
+fn void f_agg_small_aligned(Small_aligned x) {
+  x.a += x.a;
+}
+
+fn Small_aligned f_agg_small_aligned_ret(Small_aligned x) {
+  return {10};
+}
+
+// Aggregates greater > 2*xlen will be passed and returned indirectly
+struct Large {
+  long a, b, c, d;
+}
+
+fn void f_agg_large(Large x) {
+  x.a = x.b + x.c + x.d;
+}
+
+// The address where the struct should be written to will be the first
+// argument
+fn Large f_agg_large_ret(int i, ichar j) {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_large_v32i8(char[<32>] x) {
+  x[0] = x[7];
+}
+
+fn char[<32>] f_vec_large_v32i8_ret() {
+  return { [1] = 1, [31] = 31 };
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(Tiny a, Small b, Small_aligned c,
+                     Large d, char e, ichar f, char g, ichar h) {
+  return g + h;
+}
+
+fn int f_scalar_stack_2(int a, int128 b, long c, float128 d, char[<32>] e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_3(uint a, int128 b, float128 c, char[<32>] d,
+                              char e, ichar f, char g) {
+  return {a, e, f, g};
+}
+
+// Ensure that ABI lowering happens as expected for vararg calls.
+// Specifically, ensure that signext is emitted for varargs that will be
+// passed in registers but not on the stack. Ensure this takes into account
+// the use of "aligned" register pairs for varargs with 2*xlen alignment.
+
+extern fn int f_va_callee(int, ...);
+
+fn void f_va_caller() {
+	float128 fq;
+  f_va_callee(1, 2, 3i64, 4.0f, 5.0, (Tiny){6, 7, 8, 9},
+              (Small){10, null}, (Small_aligned){11},
+              (Large){12, 13, 14, 15});
+  f_va_callee(1, 2, 3, 4, fq, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, (Small_aligned){5}, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, (Small){5,null}, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, fq, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, (Small_aligned){6}, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, (Small){6, null}, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, fq, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, (Small_aligned){7}, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, (Small){7, null}, 8, 9);
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_void()
+define zeroext i8 @test.f_scalar_0(i8 zeroext %0)
+define signext i32 @test.f_scalar_1(i8 signext %0)
+define zeroext i8 @test.f_scalar_2(i8 zeroext %0)
+define signext i32 @test.f_scalar_3(i32 signext %0)
+define i64 @test.f_scalar_4(i64 %0)
+define float @test.f_fp_scalar_1(float %0)
+define double @test.f_fp_scalar_2(double %0)
+define fp128 @test.f_fp_scalar_3(fp128 %0)
+define void @test.f_agg_tiny(i64 %0)
+define i64 @test.f_agg_tiny_ret()
+define void @test.f_vec_tiny_v4i16(i64 %0)
+define i64 @test.f_vec_tiny_v4i16_ret()
+define void @test.f_vec_tiny_v1i64(i64 %0)
+define i64 @test.f_vec_tiny_v1i64_ret()
+define void @test.f_agg_small([2 x i64] %0)
+define [2 x i64] @test.f_agg_small_ret()
+define void @test.f_vec_small_v8i16(i128 %0)
+define i128 @test.f_vec_small_v8i16_ret()
+define void @test.f_vec_small_v1i128(i128 %0)
+define i128 @test.f_vec_small_v1i128_ret()
+define void @test.f_agg_small_aligned(i128 %0)
+define i128 @test.f_agg_small_aligned_ret(i128 %0)
+define void @test.f_agg_large(ptr align 8 %0)
+define void @test.f_agg_large_ret(ptr noalias sret(%Large) align 8 %0, i32 signext %1, i8 signext %2)
+define void @test.f_vec_large_v32i8(ptr align 32 %0)
+define void @test.f_vec_large_v32i8_ret(ptr noalias sret(<32 x i8>) align 32 %0)
+define signext i32 @test.f_scalar_stack_1(i64 %0, [2 x i64] %1, i128 %2, ptr align 8 %3, i8 zeroext %4, i8 signext %5, i8 %6, i8 %7)
+define signext i32 @test.f_scalar_stack_2(i32 signext %0, i128 %1, i64 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7)
+define void @test.f_scalar_stack_3(ptr noalias sret(%Large) align 8 %0, i32 signext %1, i128 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7)
+declare signext i32 @f_va_callee(i32 signext, ...)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 8 %literal3, i32 32, i1 false)
+  %3 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i64 3, double 4.000000e+00, double 5.000000e+00, i64 %0, [2 x i64] %1, i128 %2, ptr align 8 %indirectarg)
+  %5 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, fp128 %4, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %7 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i128 %6, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %9 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, [2 x i64] %8, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %11 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, fp128 %10, i32 7, i32 8, i32 9)
+  %13 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i128 %12, i32 7, i32 8, i32 9)
+  %15 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, [2 x i64] %14, i32 signext 7, i32 8, i32 9)
+  %17 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, fp128 %16, i32 8, i32 9)
+  %19 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, i128 %18, i32 8, i32 9)
+  %21 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, [2 x i64] %20, i32 8, i32 9)
diff --git a/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-3.c3t b/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-3.c3t
new file mode 100644
index 000000000..b9b9a2531
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64-lp64f-lp64d-abi-3.c3t
@@ -0,0 +1,207 @@
+// #target: linux-riscv64
+// #opt: --riscvfloat=double
+module test;
+
+fn void f_void() {}
+
+fn bool f_scalar_0(bool x) { return x; }
+fn int f_scalar_1(ichar x) { return x; }
+fn char f_scalar_2(char x) { return x; }
+fn uint f_scalar_3(int x) { return x; }
+fn long f_scalar_4(long x) { return x; }
+fn float f_fp_scalar_1(float x) { return x; }
+fn double f_fp_scalar_2(double x) { return x; }
+fn float128 f_fp_scalar_3(float128 x) { return x; }
+
+// Aggregates <= 2*xlen may be passed in registers, so will be coerced to
+// integer arguments. The rules for return are the same.
+
+struct Tiny {
+  ushort a, b, c, d;
+}
+
+fn void f_agg_tiny(Tiny x) {
+  x.a += x.b;
+  x.c += x.d;
+}
+
+fn Tiny f_agg_tiny_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v4i16(short[<4>] x) {
+  x[0] = x[1];
+  x[2] = x[3];
+}
+
+fn short[<4>] f_vec_tiny_v4i16_ret() {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_tiny_v1i64(long[<1>] x) {
+  x[0] = 114;
+}
+
+fn long[<1>] f_vec_tiny_v1i64_ret() {
+  return {1};
+}
+
+struct Small {
+  long a;
+  long *b;
+}
+
+fn void f_agg_small(Small x) {
+  x.a += *x.b;
+  x.b = &x.a;
+}
+
+fn Small f_agg_small_ret() {
+  return {1, null};
+}
+
+fn void f_vec_small_v8i16(short[<8>] x) {
+  x[0] = x[7];
+}
+
+fn short[<8>] f_vec_small_v8i16_ret() {
+  return {1, 2, 3, 4, 5, 6, 7, 8};
+}
+
+fn void f_vec_small_v1i128(int128[<1>] x) {
+  x[0] = 114;
+}
+
+fn int128[<1>] f_vec_small_v1i128_ret() {
+  return {1};
+}
+
+// Aggregates of 2*xlen size and 2*xlen alignment should be coerced to a
+// single 2*xlen-sized argument, to ensure that alignment can be maintained if
+// passed on the stack.
+
+struct Small_aligned {
+  int128 a;
+}
+
+fn void f_agg_small_aligned(Small_aligned x) {
+  x.a += x.a;
+}
+
+fn Small_aligned f_agg_small_aligned_ret(Small_aligned x) {
+  return {10};
+}
+
+// Aggregates greater > 2*xlen will be passed and returned indirectly
+struct Large {
+  long a, b, c, d;
+}
+
+fn void f_agg_large(Large x) {
+  x.a = x.b + x.c + x.d;
+}
+
+// The address where the struct should be written to will be the first
+// argument
+fn Large f_agg_large_ret(int i, ichar j) {
+  return {1, 2, 3, 4};
+}
+
+fn void f_vec_large_v32i8(char[<32>] x) {
+  x[0] = x[7];
+}
+
+fn char[<32>] f_vec_large_v32i8_ret() {
+  return { [1] = 1, [31] = 31 };
+}
+
+// Scalars passed on the stack should not have signext/zeroext attributes
+// (they are anyext).
+
+fn int f_scalar_stack_1(Tiny a, Small b, Small_aligned c,
+                     Large d, char e, ichar f, char g, ichar h) {
+  return g + h;
+}
+
+fn int f_scalar_stack_2(int a, int128 b, long c, float128 d, char[<32>] e,
+                     char f, ichar g, char h) {
+  return g + h;
+}
+
+// Ensure that scalars passed on the stack are still determined correctly in
+// the presence of large return values that consume a register due to the need
+// to pass a pointer.
+
+fn Large f_scalar_stack_3(uint a, int128 b, float128 c, char[<32>] d,
+                              char e, ichar f, char g) {
+  return {a, e, f, g};
+}
+
+// Ensure that ABI lowering happens as expected for vararg calls.
+// Specifically, ensure that signext is emitted for varargs that will be
+// passed in registers but not on the stack. Ensure this takes into account
+// the use of "aligned" register pairs for varargs with 2*xlen alignment.
+
+extern fn int f_va_callee(int, ...);
+
+fn void f_va_caller() {
+	float128 fq;
+  f_va_callee(1, 2, 3i64, 4.0f, 5.0, (Tiny){6, 7, 8, 9},
+              (Small){10, null}, (Small_aligned){11},
+              (Large){12, 13, 14, 15});
+  f_va_callee(1, 2, 3, 4, fq, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, (Small_aligned){5}, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, (Small){5,null}, 6, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, fq, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, (Small_aligned){6}, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, (Small){6, null}, 7, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, fq, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, (Small_aligned){7}, 8, 9);
+  f_va_callee(1, 2, 3, 4, 5, 6, (Small){7, null}, 8, 9);
+}
+
+
+/* #expect: test.ll
+
+define void @test.f_void()
+define zeroext i8 @test.f_scalar_0(i8 zeroext %0)
+define signext i32 @test.f_scalar_1(i8 signext %0)
+define zeroext i8 @test.f_scalar_2(i8 zeroext %0)
+define signext i32 @test.f_scalar_3(i32 signext %0)
+define i64 @test.f_scalar_4(i64 %0)
+define float @test.f_fp_scalar_1(float %0)
+define double @test.f_fp_scalar_2(double %0)
+define fp128 @test.f_fp_scalar_3(fp128 %0)
+define void @test.f_agg_tiny(i64 %0)
+define i64 @test.f_agg_tiny_ret()
+define void @test.f_vec_tiny_v4i16(i64 %0)
+define i64 @test.f_vec_tiny_v4i16_ret()
+define void @test.f_vec_tiny_v1i64(i64 %0)
+define i64 @test.f_vec_tiny_v1i64_ret()
+define void @test.f_agg_small([2 x i64] %0)
+define [2 x i64] @test.f_agg_small_ret()
+define void @test.f_vec_small_v8i16(i128 %0)
+define i128 @test.f_vec_small_v8i16_ret()
+define void @test.f_vec_small_v1i128(i128 %0)
+define i128 @test.f_vec_small_v1i128_ret()
+define void @test.f_agg_small_aligned(i128 %0)
+define i128 @test.f_agg_small_aligned_ret(i128 %0)
+define void @test.f_agg_large(ptr align 8 %0)
+define void @test.f_agg_large_ret(ptr noalias sret(%Large) align 8 %0, i32 signext %1, i8 signext %2)
+define void @test.f_vec_large_v32i8(ptr align 32 %0)
+define void @test.f_vec_large_v32i8_ret(ptr noalias sret(<32 x i8>) align 32 %0)
+define signext i32 @test.f_scalar_stack_1(i64 %0, [2 x i64] %1, i128 %2, ptr align 8 %3, i8 zeroext %4, i8 signext %5, i8 %6, i8 %7)
+define signext i32 @test.f_scalar_stack_2(i32 signext %0, i128 %1, i64 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7)
+define void @test.f_scalar_stack_3(ptr noalias sret(%Large) align 8 %0, i32 signext %1, i128 %2, fp128 %3, ptr align 32 %4, i8 zeroext %5, i8 %6, i8 %7)
+declare signext i32 @f_va_callee(i32 signext, ...)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 8 %literal3, i32 32, i1 false)
+  %3 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i64 3, double 4.000000e+00, double 5.000000e+00, i64 %0, [2 x i64] %1, i128 %2, ptr align 8 %indirectarg)
+  %5 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, fp128 %4, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %7 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i128 %6, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %9 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, [2 x i64] %8, i32 signext 6, i32 signext 7, i32 8, i32 9)
+  %11 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, fp128 %10, i32 7, i32 8, i32 9)
+  %13 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i128 %12, i32 7, i32 8, i32 9)
+  %15 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, [2 x i64] %14, i32 signext 7, i32 8, i32 9)
+  %17 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, fp128 %16, i32 8, i32 9)
+  %19 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, i128 %18, i32 8, i32 9)
+  %21 = call i32 (i32, ...) @f_va_callee(i32 signext 1, i32 signext 2, i32 signext 3, i32 signext 4, i32 signext 5, i32 signext 6, [2 x i64] %20, i32 8, i32 9)
\ No newline at end of file
diff --git a/test/test_suite7/abi/riscv64-lp64d-abi.c3t b/test/test_suite7/abi/riscv64-lp64d-abi.c3t
new file mode 100644
index 000000000..fdbb448bd
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64d-abi.c3t
@@ -0,0 +1,451 @@
+// #target: linux-riscv64
+// #opt: --riscvfloat=double
+module test;
+
+// Verify that the tracking of used GPRs and FPRs works correctly by checking
+// that small integers are sign/zero extended when passed in registers.
+
+// Doubles are passed in FPRs, so argument 'i' will be passed zero-extended
+// because it will be passed in a GPR.
+
+fn void f_fpr_tracking(double a, double b, double c, double d, double e, double f,
+                    double g, double h, char i) {}
+
+// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
+// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
+// available the widths are <= XLEN and FLEN, and should be expanded to
+// separate arguments in IR. They are passed by the same rules for returns,
+// but will be lowered to simple two-element structs if necessary (as LLVM IR
+// functions cannot return multiple values).
+
+// A struct containing just one floating-point real is passed as though it
+// were a standalone floating-point real.
+
+struct Double_s { double f; }
+
+fn void f_double_s_arg(Double_s a) {}
+
+fn Double_s f_ret_double_s() {
+  return {1.0};
+}
+
+// A struct containing a double and any number of zero-width bitfields is
+// passed as though it were a standalone floating-point real.
+
+// Check that structs containing two floating point values (FLEN <= width) are
+// expanded provided sufficient FPRs are available.
+
+struct Double_double_s { double f; double g; }
+struct Double_float_s { double f; float g; }
+
+fn void f_double_double_s_arg(Double_double_s a) {}
+
+fn Double_double_s f_ret_double_double_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_double_float_s_arg(Double_float_s a) {}
+fn Double_float_s f_ret_double_float_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_double_double_s_arg_insufficient_fprs(float a, double b, double c, double d,
+    double e, double f, double g, Double_double_s h) {}
+
+// Check that structs containing int+double values are expanded, provided
+// sufficient FPRs and GPRs are available. The integer components are neither
+// sign or zero-extended.
+
+struct Double_int8_s { double f; ichar i; }
+struct Double_uint8_s { double f; char i; }
+struct Double_int32_s { double f; int i; }
+struct Double_int64_s { double f; long i; }
+
+fn void f_double_int8_s_arg(Double_int8_s a) {}
+
+fn Double_int8_s f_ret_double_int8_s() {
+  return {1.0, 2};
+}
+
+fn void f_double_uint8_s_arg(Double_uint8_s a) {}
+
+fn Double_uint8_s f_ret_double_uint8_s() {
+  return {1.0, 2};
+}
+
+fn void f_double_int32_s_arg(Double_int32_s a) {}
+
+fn Double_int32_s f_ret_double_int32_s() {
+  return {1.0, 2};
+}
+
+fn void f_double_int64_s_arg(Double_int64_s a) {}
+
+fn Double_int64_s f_ret_double_int64_s() {
+  return {1.0, 2};
+}
+
+
+fn void f_double_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
+                                          int f, int g, int h, Double_int8_s i) {}
+
+fn void f_struct_double_int8_insufficient_fprs(float a, double b, double c, double d,
+                                           double e, double f, double g, double h, Double_int8_s i) {}
+
+
+// Test single or two-element structs that need flattening. e.g. those
+// containing nested structs, doubles in small arrays, zero-length structs etc.
+
+struct Doublearr1_s { double[1] a; }
+
+fn void f_doublearr1_s_arg(Doublearr1_s a) {}
+
+fn Doublearr1_s f_ret_doublearr1_s() {
+  return {{1.0}};
+}
+
+struct Doublearr2_s { double[2] a; }
+
+fn void f_doublearr2_s_arg(Doublearr2_s a) {}
+
+fn Doublearr2_s f_ret_doublearr2_s() {
+  return {{1.0, 2.0}};
+}
+
+struct Inner { double[1] f; }
+struct Doublearr2_tricky1_s { Inner[2] g; }
+
+fn void f_doublearr2_tricky1_s_arg(Doublearr2_tricky1_s a) {}
+
+fn Doublearr2_tricky1_s f_ret_doublearr2_tricky1_s() {
+  return {{{{1.0}}, {{2.0}}}};
+}
+
+// Test structs that should be passed according to the normal integer calling
+// convention.
+
+struct Int_double_int_s { int a; double b; int c; }
+
+fn void f_int_double_int_s_arg(Int_double_int_s a) {}
+
+fn Int_double_int_s f_ret_int_double_int_s() {
+  return {1, 2.0, 3};
+}
+
+struct Char_char_double_s { char a; char b; double c; }
+
+fn void f_char_char_double_s_arg(Char_char_double_s a) {}
+
+fn Char_char_double_s f_ret_char_char_double_s() {
+  return {1, 2, 3.0};
+}
+
+// Unions are always passed according to the integer calling convention, even
+// if they can only contain a double.
+
+union Double_u { double a; }
+
+fn void f_double_u_arg(Double_u a) {}
+
+fn Double_u f_ret_double_u() {
+  return {1.0};
+}
+
+/* #expect: test.ll
+
+define void @test.f_fpr_tracking(double %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, i8 zeroext %8) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_double_s_arg(double %0) #0 {
+entry:
+  %a = alloca %Double_s, align 8
+  store double %0, ptr %a, align 8
+  ret void
+}
+
+
+define double @test.f_ret_double_s() #0 {
+entry:
+  %literal = alloca %Double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 8, i1 false)
+  %0 = load double, ptr %literal, align 8
+  ret double %0
+}
+
+
+define void @test.f_double_double_s_arg(double %0, double %1) #0 {
+entry:
+  %a = alloca %Double_double_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store double %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, double } @test.f_ret_double_double_s() #0 {
+entry:
+  %literal = alloca %Double_double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.1, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load double, ptr %literal, align 8
+  %2 = insertvalue { double, double } undef, double %0, 0
+  %3 = insertvalue { double, double } %2, double %1, 1
+  ret { double, double } %3
+}
+
+
+define void @test.f_double_float_s_arg(double %0, float %1) #0 {
+entry:
+  %a = alloca %Double_float_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store float %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, float } @test.f_ret_double_float_s() #0 {
+entry:
+  %literal = alloca %Double_float_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.2, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load float, ptr %literal, align 8
+  %2 = insertvalue { double, float } undef, double %0, 0
+  %3 = insertvalue { double, float } %2, float %1, 1
+  ret { double, float } %3
+}
+
+
+define void @test.f_double_double_s_arg_insufficient_fprs(float %0, double %1, double %2, double %3, double %4, double %5, double %6, [2 x i64] %7) #0 {
+entry:
+  %h = alloca %Double_double_s, align 8
+  store [2 x i64] %7, ptr %h, align 8
+  ret void
+}
+
+
+define void @test.f_double_int8_s_arg(double %0, i8 %1) #0 {
+entry:
+  %a = alloca %Double_int8_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i8 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, i8 } @test.f_ret_double_int8_s() #0 {
+entry:
+  %literal = alloca %Double_int8_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.3, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load i8, ptr %literal, align 8
+  %2 = insertvalue { double, i8 } undef, double %0, 0
+  %3 = insertvalue { double, i8 } %2, i8 %1, 1
+  ret { double, i8 } %3
+}
+
+
+define void @test.f_double_uint8_s_arg(double %0, i8 %1) #0 {
+entry:
+  %a = alloca %Double_uint8_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i8 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, i8 } @test.f_ret_double_uint8_s() #0 {
+entry:
+  %literal = alloca %Double_uint8_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.4, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load i8, ptr %literal, align 8
+  %2 = insertvalue { double, i8 } undef, double %0, 0
+  %3 = insertvalue { double, i8 } %2, i8 %1, 1
+  ret { double, i8 } %3
+}
+
+
+define void @test.f_double_int32_s_arg(double %0, i32 %1) #0 {
+entry:
+  %a = alloca %Double_int32_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i32 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, i32 } @test.f_ret_double_int32_s() #0 {
+entry:
+  %literal = alloca %Double_int32_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.5, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load i32, ptr %literal, align 8
+  %2 = insertvalue { double, i32 } undef, double %0, 0
+  %3 = insertvalue { double, i32 } %2, i32 %1, 1
+  ret { double, i32 } %3
+}
+
+
+define void @test.f_double_int64_s_arg(double %0, i64 %1) #0 {
+entry:
+  %a = alloca %Double_int64_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i64 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, i64 } @test.f_ret_double_int64_s() #0 {
+entry:
+  %literal = alloca %Double_int64_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.6, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load i64, ptr %literal, align 8
+  %2 = insertvalue { double, i64 } undef, double %0, 0
+  %3 = insertvalue { double, i64 } %2, i64 %1, 1
+  ret { double, i64 } %3
+}
+
+
+define void @test.f_double_int8_s_arg_insufficient_gprs(i32 signext %0, i32 signext %1, i32 signext %2, i32 signext %3, i32 signext %4, i32 signext %5, i32 signext %6, i32 signext %7, [2 x i64] %8) #0 {
+entry:
+  %i = alloca %Double_int8_s, align 8
+  store [2 x i64] %8, ptr %i, align 8
+  ret void
+}
+
+
+define void @test.f_struct_double_int8_insufficient_fprs(float %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, [2 x i64] %8) #0 {
+entry:
+  %i = alloca %Double_int8_s, align 8
+  store [2 x i64] %8, ptr %i, align 8
+  ret void
+}
+
+
+define void @test.f_doublearr1_s_arg(double %0) #0 {
+entry:
+  %a = alloca %Doublearr1_s, align 8
+  store double %0, ptr %a, align 8
+  ret void
+}
+
+
+define double @test.f_ret_doublearr1_s() #0 {
+entry:
+  %literal = alloca %Doublearr1_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.7, i32 8, i1 false)
+  %0 = load double, ptr %literal, align 8
+  ret double %0
+}
+
+
+define void @test.f_doublearr2_s_arg(double %0, double %1) #0 {
+entry:
+  %a = alloca %Doublearr2_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store double %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, double } @test.f_ret_doublearr2_s() #0 {
+entry:
+  %literal = alloca %Doublearr2_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.8, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load double, ptr %literal, align 8
+  %2 = insertvalue { double, double } undef, double %0, 0
+  %3 = insertvalue { double, double } %2, double %1, 1
+  ret { double, double } %3
+}
+
+
+define void @test.f_doublearr2_tricky1_s_arg(double %0, double %1) #0 {
+entry:
+  %a = alloca %Doublearr2_tricky1_s, align 8
+  store double %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store double %1, ptr %a, align 8
+  ret void
+}
+
+
+define { double, double } @test.f_ret_doublearr2_tricky1_s() #0 {
+entry:
+  %literal = alloca %Doublearr2_tricky1_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.9, i32 16, i1 false)
+  %0 = load double, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load double, ptr %literal, align 8
+  %2 = insertvalue { double, double } undef, double %0, 0
+  %3 = insertvalue { double, double } %2, double %1, 1
+  ret { double, double } %3
+}
+
+
+define void @test.f_int_double_int_s_arg(ptr align 8 %0) #0 {
+entry:
+  ret void
+}
+
+
+define void @test.f_ret_int_double_int_s(ptr noalias sret(%Int_double_int_s) align 8 %0) #0 {
+entry:
+  %literal = alloca %Int_double_int_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.10, i32 24, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 24, i1 false)
+  ret void
+}
+
+
+define void @test.f_char_char_double_s_arg([2 x i64] %0) #0 {
+entry:
+  %a = alloca %Char_char_double_s, align 8
+  store [2 x i64] %0, ptr %a, align 8
+  ret void
+}
+
+
+define [2 x i64] @test.f_ret_char_char_double_s() #0 {
+entry:
+  %literal = alloca %Char_char_double_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.11, i32 16, i1 false)
+  %0 = load [2 x i64], ptr %literal, align 8
+  ret [2 x i64] %0
+}
+
+
+define void @test.f_double_u_arg(i64 %0) #0 {
+entry:
+  %a = alloca %Double_u, align 8
+  store i64 %0, ptr %a, align 8
+  ret void
+}
+
+
+define i64 @test.f_ret_double_u() #0 {
+entry:
+  %literal = alloca %Double_u, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.12, i32 8, i1 false)
+  %0 = load i64, ptr %literal, align 8
+  ret i64 %0
+}
+
diff --git a/test/test_suite7/abi/riscv64-lp64f-lp64d-abi-1.c3t b/test/test_suite7/abi/riscv64-lp64f-lp64d-abi-1.c3t
new file mode 100644
index 000000000..2ffa8a903
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64f-lp64d-abi-1.c3t
@@ -0,0 +1,184 @@
+// #target: linux-riscv64
+// #opt: --riscvfloat=float
+module test;
+
+// Verify that the tracking of used GPRs and FPRs works correctly by checking
+// that small integers are sign/zero extended when passed in registers.
+
+// Floats are passed in FPRs, so argument 'i' will be passed zero-extended
+// because it will be passed in a GPR.
+
+fn void f_fpr_tracking(float a, float b, float c, float d, float e, float f,
+                    float g, float h, char i) {}
+
+// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
+// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
+// available the widths are <= XLEN and FLEN, and should be expanded to
+// separate arguments in IR. They are passed by the same rules for returns,
+// but will be lowered to simple two-element structs if necessary (as LLVM IR
+// functions cannot return multiple values).
+
+// A struct containing just one floating-point real is passed as though it
+// were a standalone floating-point real.
+
+struct Float_s { float f; }
+
+fn void f_float_s_arg(Float_s a) {}
+fn Float_s f_ret_float_s() {
+  return {1.0};
+}
+
+
+// Check that structs containing two float values (FLEN <= width) are expanded
+// provided sufficient FPRs are available.
+
+struct Float_float_s { float f; float g; }
+
+fn void f_float_float_s_arg(Float_float_s a) {}
+
+fn Float_float_s f_ret_float_float_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_float_float_s_arg_insufficient_fprs(float a, float b, float c, float d,
+    float e, float f, float g, Float_float_s h) {}
+
+// Check that structs containing int+float values are expanded, provided
+// sufficient FPRs and GPRs are available. The integer components are neither
+// sign or zero-extended.
+
+struct Float_int8_s { float f; ichar i; }
+struct Float_uint8_s { float f; char i; }
+struct Float_int32_s { float f; int i; }
+struct Float_int64_s { float f; long i; }
+
+fn void f_float_int8_s_arg(Float_int8_s a) {}
+fn Float_int8_s f_ret_float_int8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_uint8_s_arg(Float_uint8_s a) {}
+fn Float_uint8_s f_ret_float_uint8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int32_s_arg(Float_int32_s a) {}
+fn Float_int32_s f_ret_float_int32_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int64_s_arg(Float_int64_s a) {}
+fn Float_int64_s f_ret_float_int64_s() {
+  return {1.0, 2};
+}
+
+
+fn void f_float_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
+                                          int f, int g, int h, Float_int8_s i) {}
+
+fn void f_struct_float_int8_insufficient_fprs(float a, float b, float c, float d,
+                                           float e, float f, float g, float h, Float_int8_s i) {}
+
+// Test single or two-element structs that need flattening. e.g. those
+// containing nested structs, floats in small arrays, zero-length structs etc.
+
+struct Floatarr1_s { float[1] a; }
+
+fn void f_floatarr1_s_arg(Floatarr1_s a) {}
+fn Floatarr1_s f_ret_floatarr1_s() {
+  return {{1.0}};
+}
+
+struct Floatarr2_s { float[2] a; }
+fn void f_floatarr2_s_arg(Floatarr2_s a) {}
+
+fn Floatarr2_s f_ret_floatarr2_s() {
+  return {{1.0, 2.0}};
+}
+
+struct Inner { float[1] f; }
+struct Floatarr2_tricky1_s { Inner[2] g; }
+
+fn void f_floatarr2_tricky1_s_arg(Floatarr2_tricky1_s a) {}
+fn Floatarr2_tricky1_s f_ret_floatarr2_tricky1_s() {
+  return {{{{1.0}}, {{2.0}}}};
+}
+
+
+// Test structs that should be passed according to the normal integer calling
+// convention.
+
+struct Int_float_int_s { int a; float b; int c; }
+
+fn void f_int_float_int_s_arg(Int_float_int_s a) {}
+
+fn Int_float_int_s f_ret_int_float_int_s() {
+  return {1, 2.0, 3};
+}
+
+struct Char_char_float_s { char a; char b; float c; }
+
+fn void f_char_char_float_s_arg(Char_char_float_s a) {}
+fn Char_char_float_s f_ret_char_char_float_s() {
+  return {1, 2, 3.0};
+}
+
+// Unions are always passed according to the integer calling convention, even
+// if they can only contain a float.
+
+union Float_u { float a; }
+
+fn void f_float_u_arg(Float_u a) {}
+fn Float_u f_ret_float_u() {
+  return {1.0};
+}
+
+/* #expect: test.ll
+
+define void @test.f_fpr_tracking(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i8 zeroext %8) #0 {
+
+define void @test.f_float_s_arg(float %0) #0 {
+define float @test.f_ret_float_s() #0 {
+
+define void @test.f_float_float_s_arg(float %0, float %1) #0 {
+define { float, float } @test.f_ret_float_float_s() #0 {
+define void @test.f_float_float_s_arg_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, i64 %7) #0 {
+define void @test.f_float_int8_s_arg(float %0, i8 %1) #0 {
+define { float, i8 } @test.f_ret_float_int8_s() #0 {
+
+define void @test.f_float_uint8_s_arg(float %0, i8 %1) #0 {
+
+define { float, i8 } @test.f_ret_float_uint8_s() #0 {
+
+define void @test.f_float_int32_s_arg(float %0, i32 %1) #0 {
+
+define { float, i32 } @test.f_ret_float_int32_s() #0 {
+define void @test.f_float_int64_s_arg(float %0, i64 %1) #0 {
+
+define { float, i64 } @test.f_ret_float_int64_s() #0 {
+
+define void @test.f_float_int8_s_arg_insufficient_gprs(i32 signext %0, i32 signext %1, i32 signext %2, i32 signext %3, i32 signext %4, i32 signext %5, i32 signext %6, i32 signext %7, i64 %8) #0 {
+
+define void @test.f_struct_float_int8_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i64 %8) #0 {
+
+define void @test.f_floatarr1_s_arg(float %0) #0 {
+
+define float @test.f_ret_floatarr1_s() #0 {
+
+define void @test.f_floatarr2_s_arg(float %0, float %1) #0 {
+
+define { float, float } @test.f_ret_floatarr2_s() #0 {
+
+define void @test.f_floatarr2_tricky1_s_arg(float %0, float %1) #0 {
+
+define { float, float } @test.f_ret_floatarr2_tricky1_s() #0 {
+
+define void @test.f_int_float_int_s_arg([2 x i64] %0) #0 {
+
+define [2 x i64] @test.f_ret_int_float_int_s() #0 {
+
+define void @test.f_char_char_float_s_arg(i64 %0) #0 {
+define i64 @test.f_ret_char_char_float_s() #0 {
+
+define void @test.f_float_u_arg(i64 %0) #0 {
+define i64 @test.f_ret_float_u() #0 {
diff --git a/test/test_suite7/abi/riscv64-lp64f-lp64d-abi-2.c3t b/test/test_suite7/abi/riscv64-lp64f-lp64d-abi-2.c3t
new file mode 100644
index 000000000..be6f8280e
--- /dev/null
+++ b/test/test_suite7/abi/riscv64-lp64f-lp64d-abi-2.c3t
@@ -0,0 +1,415 @@
+// #target: linux-riscv64
+// #opt: --riscvfloat=double
+module test;
+
+// Verify that the tracking of used GPRs and FPRs works correctly by checking
+// that small integers are sign/zero extended when passed in registers.
+
+// Floats are passed in FPRs, so argument 'i' will be passed zero-extended
+// because it will be passed in a GPR.
+
+fn void f_fpr_tracking(float a, float b, float c, float d, float e, float f,
+                    float g, float h, char i) {}
+
+// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
+// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
+// available the widths are <= XLEN and FLEN, and should be expanded to
+// separate arguments in IR. They are passed by the same rules for returns,
+// but will be lowered to simple two-element structs if necessary (as LLVM IR
+// functions cannot return multiple values).
+
+// A struct containing just one floating-point real is passed as though it
+// were a standalone floating-point real.
+
+struct Float_s { float f; }
+
+fn void f_float_s_arg(Float_s a) {}
+fn Float_s f_ret_float_s() {
+  return {1.0};
+}
+
+
+// Check that structs containing two float values (FLEN <= width) are expanded
+// provided sufficient FPRs are available.
+
+struct Float_float_s { float f; float g; }
+
+fn void f_float_float_s_arg(Float_float_s a) {}
+
+fn Float_float_s f_ret_float_float_s() {
+  return {1.0, 2.0};
+}
+
+fn void f_float_float_s_arg_insufficient_fprs(float a, float b, float c, float d,
+    float e, float f, float g, Float_float_s h) {}
+
+// Check that structs containing int+float values are expanded, provided
+// sufficient FPRs and GPRs are available. The integer components are neither
+// sign or zero-extended.
+
+struct Float_int8_s { float f; ichar i; }
+struct Float_uint8_s { float f; char i; }
+struct Float_int32_s { float f; int i; }
+struct Float_int64_s { float f; long i; }
+
+fn void f_float_int8_s_arg(Float_int8_s a) {}
+fn Float_int8_s f_ret_float_int8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_uint8_s_arg(Float_uint8_s a) {}
+fn Float_uint8_s f_ret_float_uint8_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int32_s_arg(Float_int32_s a) {}
+fn Float_int32_s f_ret_float_int32_s() {
+  return {1.0, 2};
+}
+
+fn void f_float_int64_s_arg(Float_int64_s a) {}
+fn Float_int64_s f_ret_float_int64_s() {
+  return {1.0, 2};
+}
+
+
+fn void f_float_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
+                                          int f, int g, int h, Float_int8_s i) {}
+
+fn void f_struct_float_int8_insufficient_fprs(float a, float b, float c, float d,
+                                           float e, float f, float g, float h, Float_int8_s i) {}
+
+// Test single or two-element structs that need flattening. e.g. those
+// containing nested structs, floats in small arrays, zero-length structs etc.
+
+struct Floatarr1_s { float[1] a; }
+
+fn void f_floatarr1_s_arg(Floatarr1_s a) {}
+fn Floatarr1_s f_ret_floatarr1_s() {
+  return {{1.0}};
+}
+
+struct Floatarr2_s { float[2] a; }
+fn void f_floatarr2_s_arg(Floatarr2_s a) {}
+
+fn Floatarr2_s f_ret_floatarr2_s() {
+  return {{1.0, 2.0}};
+}
+
+struct Inner { float[1] f; }
+struct Floatarr2_tricky1_s { Inner[2] g; }
+
+fn void f_floatarr2_tricky1_s_arg(Floatarr2_tricky1_s a) {}
+fn Floatarr2_tricky1_s f_ret_floatarr2_tricky1_s() {
+  return {{{{1.0}}, {{2.0}}}};
+}
+
+
+// Test structs that should be passed according to the normal integer calling
+// convention.
+
+struct Int_float_int_s { int a; float b; int c; }
+
+fn void f_int_float_int_s_arg(Int_float_int_s a) {}
+
+fn Int_float_int_s f_ret_int_float_int_s() {
+  return {1, 2.0, 3};
+}
+
+struct Char_char_float_s { char a; char b; float c; }
+
+fn void f_char_char_float_s_arg(Char_char_float_s a) {}
+fn Char_char_float_s f_ret_char_char_float_s() {
+  return {1, 2, 3.0};
+}
+
+// Unions are always passed according to the integer calling convention, even
+// if they can only contain a float.
+
+union Float_u { float a; }
+
+fn void f_float_u_arg(Float_u a) {}
+fn Float_u f_ret_float_u() {
+  return {1.0};
+}
+
+/* #expect: test.ll
+
+define void @test.f_fpr_tracking(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i8 zeroext %8) #0 {
+
+define void @test.f_float_s_arg(float %0) #0 {
+entry:
+  %a = alloca %Float_s, align 4
+  store float %0, ptr %a, align 4
+  ret void
+}
+
+
+define float @test.f_ret_float_s() #0 {
+entry:
+  %literal = alloca %Float_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 4, i1 false)
+  %0 = load float, ptr %literal, align 4
+  ret float %0
+}
+
+
+define void @test.f_float_float_s_arg(float %0, float %1) #0 {
+entry:
+  %a = alloca %Float_float_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 4
+  store float %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, float } @test.f_ret_float_float_s() #0 {
+entry:
+  %literal = alloca %Float_float_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.1, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  %1 = load float, ptr %literal, align 4
+  %2 = insertvalue { float, float } undef, float %0, 0
+  %3 = insertvalue { float, float } %2, float %1, 1
+  ret { float, float } %3
+}
+
+
+define void @test.f_float_float_s_arg_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, i64 %7) #0 {
+entry:
+  %h = alloca %Float_float_s, align 4
+  store i64 %7, ptr %h, align 4
+  ret void
+}
+
+
+define void @test.f_float_int8_s_arg(float %0, i8 %1) #0 {
+entry:
+  %a = alloca %Float_int8_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 4
+  store i8 %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, i8 } @test.f_ret_float_int8_s() #0 {
+entry:
+  %literal = alloca %Float_int8_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.2, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  %1 = load i8, ptr %literal, align 4
+  %2 = insertvalue { float, i8 } undef, float %0, 0
+  %3 = insertvalue { float, i8 } %2, i8 %1, 1
+  ret { float, i8 } %3
+}
+
+
+define void @test.f_float_uint8_s_arg(float %0, i8 %1) #0 {
+entry:
+  %a = alloca %Float_uint8_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 4
+  store i8 %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, i8 } @test.f_ret_float_uint8_s() #0 {
+entry:
+  %literal = alloca %Float_uint8_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.3, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  %1 = load i8, ptr %literal, align 4
+  %2 = insertvalue { float, i8 } undef, float %0, 0
+  %3 = insertvalue { float, i8 } %2, i8 %1, 1
+  ret { float, i8 } %3
+}
+
+
+define void @test.f_float_int32_s_arg(float %0, i32 %1) #0 {
+entry:
+  %a = alloca %Float_int32_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 4
+  store i32 %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, i32 } @test.f_ret_float_int32_s() #0 {
+entry:
+  %literal = alloca %Float_int32_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.4, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  %1 = load i32, ptr %literal, align 4
+  %2 = insertvalue { float, i32 } undef, float %0, 0
+  %3 = insertvalue { float, i32 } %2, i32 %1, 1
+  ret { float, i32 } %3
+}
+
+
+define void @test.f_float_int64_s_arg(float %0, i64 %1) #0 {
+entry:
+  %a = alloca %Float_int64_s, align 8
+  store float %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i64 %1, ptr %a, align 8
+  ret void
+}
+
+
+define { float, i64 } @test.f_ret_float_int64_s() #0 {
+entry:
+  %literal = alloca %Float_int64_s, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.5, i32 16, i1 false)
+  %0 = load float, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  %1 = load i64, ptr %literal, align 8
+  %2 = insertvalue { float, i64 } undef, float %0, 0
+  %3 = insertvalue { float, i64 } %2, i64 %1, 1
+  ret { float, i64 } %3
+}
+
+
+define void @test.f_float_int8_s_arg_insufficient_gprs(i32 signext %0, i32 signext %1, i32 signext %2, i32 signext %3, i32 signext %4, i32 signext %5, i32 signext %6, i32 signext %7, i64 %8) #0 {
+entry:
+  %i = alloca %Float_int8_s, align 4
+  store i64 %8, ptr %i, align 4
+  ret void
+}
+
+
+define void @test.f_struct_float_int8_insufficient_fprs(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, i64 %8) #0 {
+entry:
+  %i = alloca %Float_int8_s, align 4
+  store i64 %8, ptr %i, align 4
+  ret void
+}
+
+
+define void @test.f_floatarr1_s_arg(float %0) #0 {
+entry:
+  %a = alloca %Floatarr1_s, align 4
+  store float %0, ptr %a, align 4
+  ret void
+}
+
+
+define float @test.f_ret_floatarr1_s() #0 {
+entry:
+  %literal = alloca %Floatarr1_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.6, i32 4, i1 false)
+  %0 = load float, ptr %literal, align 4
+  ret float %0
+}
+
+
+define void @test.f_floatarr2_s_arg(float %0, float %1) #0 {
+entry:
+  %a = alloca %Floatarr2_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 4
+  store float %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, float } @test.f_ret_floatarr2_s() #0 {
+entry:
+  %literal = alloca %Floatarr2_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.7, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  %1 = load float, ptr %literal, align 4
+  %2 = insertvalue { float, float } undef, float %0, 0
+  %3 = insertvalue { float, float } %2, float %1, 1
+  ret { float, float } %3
+}
+
+
+define void @test.f_floatarr2_tricky1_s_arg(float %0, float %1) #0 {
+entry:
+  %a = alloca %Floatarr2_tricky1_s, align 4
+  store float %0, ptr %a, align 4
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 4
+  store float %1, ptr %a, align 4
+  ret void
+}
+
+
+define { float, float } @test.f_ret_floatarr2_tricky1_s() #0 {
+entry:
+  %literal = alloca %Floatarr2_tricky1_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.8, i32 8, i1 false)
+  %0 = load float, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  %1 = load float, ptr %literal, align 4
+  %2 = insertvalue { float, float } undef, float %0, 0
+  %3 = insertvalue { float, float } %2, float %1, 1
+  ret { float, float } %3
+}
+
+
+define void @test.f_int_float_int_s_arg([2 x i64] %0) #0 {
+entry:
+  %a = alloca %Int_float_int_s, align 4
+  %tempcoerce = alloca [2 x i64], align 8
+  store [2 x i64] %0, ptr %tempcoerce, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a, ptr align 8 %tempcoerce, i32 12, i1 false)
+  ret void
+}
+
+
+define [2 x i64] @test.f_ret_int_float_int_s() #0 {
+entry:
+  %literal = alloca %Int_float_int_s, align 4
+  %tempcoerce = alloca [2 x i64], align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.9, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tempcoerce, ptr align 4 %literal, i32 12, i1 false)
+  %0 = load [2 x i64], ptr %tempcoerce, align 8
+  ret [2 x i64] %0
+}
+
+
+define void @test.f_char_char_float_s_arg(i64 %0) #0 {
+entry:
+  %a = alloca %Char_char_float_s, align 4
+  store i64 %0, ptr %a, align 4
+  ret void
+}
+
+
+define i64 @test.f_ret_char_char_float_s() #0 {
+entry:
+  %literal = alloca %Char_char_float_s, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.10, i32 8, i1 false)
+  %0 = load i64, ptr %literal, align 4
+  ret i64 %0
+}
+
+
+define void @test.f_float_u_arg(i64 %0) #0 {
+entry:
+  %a = alloca %Float_u, align 4
+  %tempcoerce = alloca i64, align 8
+  store i64 %0, ptr %tempcoerce, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a, ptr align 8 %tempcoerce, i32 4, i1 false)
+  ret void
+}
+
+
+define i64 @test.f_ret_float_u() #0 {
+entry:
+  %literal = alloca %Float_u, align 4
+  %tempcoerce = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.11, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tempcoerce, ptr align 4 %literal, i32 4, i1 false)
+  %0 = load i64, ptr %tempcoerce, align 8
+  ret i64 %0
+}
diff --git a/test/test_suite7/abi/small_struct_x64.c3t b/test/test_suite7/abi/small_struct_x64.c3t
new file mode 100644
index 000000000..8bf57d9fe
--- /dev/null
+++ b/test/test_suite7/abi/small_struct_x64.c3t
@@ -0,0 +1,66 @@
+// #target: macos-x64
+module test;
+struct Foo
+{
+    char a;
+    char b;
+    char c;
+}
+
+fn int testing()
+{
+    Foo y = getFoo((Foo) { 4, 5, 6 });
+    return y.a + y.c;
+}
+
+fn Foo getFoo(Foo f)
+{
+    return (Foo) { 1, 2, 3 };
+}
+
+/* #expect: test.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%Foo = type { i8, i8, i8 }
+
+@"$ct.test.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 3, i64 0, i64 3, [0 x i64] zeroinitializer }, align 8
+
+; Function Attrs:
+define i32 @test.testing() #0 {
+entry:
+  %y = alloca %Foo, align 1
+  %literal = alloca %Foo, align 1
+  %tempcoerce = alloca i24, align 4
+  %result = alloca %Foo, align 1
+  %tempcoerce1 = alloca i24, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const, i32 3, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %tempcoerce, ptr align 1 %literal, i32 3, i1 false)
+  %0 = load i24, ptr %tempcoerce, align 4
+  %1 = call i24 @test.getFoo(i24 %0)
+  store i24 %1, ptr %tempcoerce1, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %result, ptr align 4 %tempcoerce1, i32 3, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %y, ptr align 1 %result, i32 3, i1 false)
+  %2 = load i8, ptr %y, align 1
+  %zext = zext i8 %2 to i32
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 2
+  %3 = load i8, ptr %ptradd, align 1
+  %zext2 = zext i8 %3 to i32
+  %add = add i32 %zext, %zext2
+  ret i32 %add
+}
+
+; Function Attrs:
+define i24 @test.getFoo(i24 %0) #0 {
+entry:
+  %f = alloca %Foo, align 1
+  %tempcoerce = alloca i24, align 4
+  %literal = alloca %Foo, align 1
+  %tempcoerce1 = alloca i24, align 4
+  store i24 %0, ptr %tempcoerce, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %f, ptr align 4 %tempcoerce, i32 3, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal, ptr align 1 @.__const.1, i32 3, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %tempcoerce1, ptr align 1 %literal, i32 3, i1 false)
+  %1 = load i24, ptr %tempcoerce1, align 4
+  ret i24 %1
+}
+
diff --git a/test/test_suite7/abi/sysv_abi_avx.c3t b/test/test_suite7/abi/sysv_abi_avx.c3t
new file mode 100644
index 000000000..95f579afb
--- /dev/null
+++ b/test/test_suite7/abi/sysv_abi_avx.c3t
@@ -0,0 +1,42 @@
+// #target: linux-x64
+// #opt: --x86cpu=avx512
+module foo;
+
+struct StringRef
+{
+	char* str;
+	usz size;
+}
+
+char gc;
+extern fn void take_stringref(StringRef s);
+fn void callit()
+{
+	StringRef s = { "asdf" , 4};
+	take_stringref(s);
+}
+
+extern fn float[<8>] get_m256();
+extern fn void take_m256(float[<8>] x);
+extern fn float[<16>] get_m512();
+extern fn void take_m512(float[<16>] x);
+
+fn void use_vectors()
+{
+  float[<8>] v1 = get_m256();
+  take_m256(v1);
+  float[<16>] v2 = get_m512();
+  take_m512(v2);
+}
+
+/* #expect: foo.ll
+
+declare void @take_stringref(ptr, i64) #0
+call void @take_stringref(ptr %lo, i64 %hi)
+
+define void @foo.use_vectors() #0 {
+entry:
+  %0 = call <8 x float> @get_m256()
+  call void @take_m256(<8 x float> %1)
+  %2 = call <16 x float> @get_m512()
+  call void @take_m512(<16 x float> %3)
diff --git a/test/test_suite7/abi/sysv_abi_noavx.c3t b/test/test_suite7/abi/sysv_abi_noavx.c3t
new file mode 100644
index 000000000..a32ded346
--- /dev/null
+++ b/test/test_suite7/abi/sysv_abi_noavx.c3t
@@ -0,0 +1,41 @@
+// #target: linux-x64
+// #opt: --x86vec=none
+module foo;
+
+struct StringRef
+{
+	char* str;
+	usz size;
+}
+
+char gc;
+extern fn void take_stringref(StringRef s);
+fn void callit()
+{
+	StringRef s = { "asdf" , 4};
+	take_stringref(s);
+}
+
+extern fn float[<8>] get_m256();
+extern fn void take_m256(float[<8>] x);
+extern fn float[<16>] get_m512();
+extern fn void take_m512(float[<16>] x);
+
+fn void use_vectors()
+{
+  float[<8>] v1 = get_m256();
+  take_m256(v1);
+  float[<16>] v2 = get_m512();
+  take_m512(v2);
+}
+
+/* #expect: foo.ll
+
+declare void @take_stringref(ptr, i64) #0
+  call void @take_stringref(ptr %lo, i64 %hi)
+
+define void @foo.use_vectors() #0 {
+  %0 = call <8 x float> @get_m256()
+  call void @take_m256(ptr byval(<8 x float>) align 32 %v1)
+  %1 = call <16 x float> @get_m512()
+  call void @take_m512(ptr byval(<16 x float>) align 64 %v2)
\ No newline at end of file
diff --git a/test/test_suite7/abi/sysv_direct_coerce.c3t b/test/test_suite7/abi/sysv_direct_coerce.c3t
new file mode 100644
index 000000000..f33ade62b
--- /dev/null
+++ b/test/test_suite7/abi/sysv_direct_coerce.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+module foo;
+
+struct Rectangle
+{
+    float x;                // Rectangle top-left corner position x
+    float y;                // Rectangle top-left corner position y
+    float width;            // Rectangle width
+    float height;           // Rectangle height
+}
+
+fn void test(Rectangle r)
+{
+	test((Rectangle) { 1, 2, 3, 4 });
+}
+
+/* #expect: foo.ll
+
+define void @foo.test(<2 x float> %0, <2 x float> %1) #0 {
+entry:
+  %r = alloca %Rectangle, align 8
+  %literal = alloca %Rectangle, align 4
+  %coerce = alloca %Rectangle, align 8
+  store <2 x float> %0, ptr %r, align 8
+  %ptradd = getelementptr inbounds i8, ptr %r, i64 8
+  store <2 x float> %1, ptr %ptradd, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %coerce, ptr align 4 %literal, i32 16, i1 false)
+  %lo = load <2 x float>, ptr %coerce, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %coerce, i64 8
+  %hi = load <2 x float>, ptr %ptradd1, align 8
+  call void @foo.test(<2 x float> %lo, <2 x float> %hi)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/abi/test_sret.c3t b/test/test_suite7/abi/test_sret.c3t
new file mode 100644
index 000000000..3ec4addaf
--- /dev/null
+++ b/test/test_suite7/abi/test_sret.c3t
@@ -0,0 +1,32 @@
+// #target: macos-x64
+
+struct Abc {
+ long a;
+ long b;
+ long c;
+ long d;
+ long e;
+}
+
+extern fn Abc foo1();
+extern fn Abc foo2();
+
+fn void bar() {
+  Abc dummy1 = foo1();
+  Abc dummy2 = foo2();
+}
+
+/* #expect: test_sret.ll
+
+declare void @foo1(ptr noalias sret(%Abc) align 8) #0
+
+declare void @foo2(ptr noalias sret(%Abc) align 8) #0
+
+define void @test_sret.bar() #0 {
+entry:
+  %dummy1 = alloca %Abc, align 8
+  %dummy2 = alloca %Abc, align 8
+  call void @foo1(ptr sret(%Abc) align 8 %dummy1)
+  call void @foo2(ptr sret(%Abc) align 8 %dummy2)
+  ret void
+}
diff --git a/test/test_suite7/abi/union_x64.c3t b/test/test_suite7/abi/union_x64.c3t
new file mode 100644
index 000000000..b598969f4
--- /dev/null
+++ b/test/test_suite7/abi/union_x64.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+
+module unionx64;
+
+union Foo
+{
+    long a;
+    char[12] b;
+}
+extern fn void hello2(Foo f);
+
+fn void hello(Foo f)
+{
+    hello2(f);
+}
+
+/* #expect: unionx64.ll
+
+%Foo = type { i64, [8 x i8] }
+
+declare void @hello2(i64, i64) #0
+
+; Function Attrs:
+define void @unionx64.hello(i64 %0, i64 %1) #0 {
+entry:
+  %f = alloca %Foo, align 8
+  store i64 %0, ptr %f, align 8
+  %ptradd = getelementptr inbounds i8, ptr %f, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %lo = load i64, ptr %f, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %f, i64 8
+  %hi = load i64, ptr %ptradd1, align 8
+  call void @hello2(i64 %lo, i64 %hi)
+  ret void
+}
diff --git a/test/test_suite7/abi/vec2_aarch64.c3t b/test/test_suite7/abi/vec2_aarch64.c3t
new file mode 100644
index 000000000..20e8e5295
--- /dev/null
+++ b/test/test_suite7/abi/vec2_aarch64.c3t
@@ -0,0 +1,95 @@
+// #target: linux-aarch64
+module abi;
+
+struct Vector2 {
+  float x;
+  float y;
+}
+fn Vector2 vector2_zero() @extern("vector2_zero") { return {}; }
+fn Vector2 vector2_one() @extern("vector2_one") { return {}; }
+fn Vector2 vector2_add(Vector2 v1, Vector2 v2) @extern("vector2_add") { return {}; }
+fn Vector2 vector2_add_value(Vector2 v, float add) @extern("vector2_add_value") { return {}; }
+fn Vector2 vector2_subtract(Vector2 v1, Vector2 v2) @extern("vector2_subtract") { return {}; }
+fn Vector2 vector2_subtract_value(Vector2 v, float sub) @extern("vector2_subtract_value")  { return {}; }
+
+
+/* #expect: abi.ll
+
+%Vector2 = type { float, float }
+
+define %Vector2 @vector2_zero() #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %0 = load %Vector2, ptr %literal, align 4
+  ret %Vector2 %0
+}
+
+; Function Attrs:
+define %Vector2 @vector2_one() #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %0 = load %Vector2, ptr %literal, align 4
+  ret %Vector2 %0
+}
+
+; Function Attrs:
+define %Vector2 @vector2_add([2 x float] %0, [2 x float] %1) #0 {
+entry:
+  %v1 = alloca %Vector2, align 4
+  %v2 = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store [2 x float] %0, ptr %v1, align 4
+  store [2 x float] %1, ptr %v2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load %Vector2, ptr %literal, align 4
+  ret %Vector2 %2
+}
+
+; Function Attrs:
+define %Vector2 @vector2_add_value([2 x float] %0, float %1) #0 {
+entry:
+  %v = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store [2 x float] %0, ptr %v, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load %Vector2, ptr %literal, align 4
+  ret %Vector2 %2
+}
+
+; Function Attrs:
+define %Vector2 @vector2_subtract([2 x float] %0, [2 x float] %1) #0 {
+entry:
+  %v1 = alloca %Vector2, align 4
+  %v2 = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store [2 x float] %0, ptr %v1, align 4
+  store [2 x float] %1, ptr %v2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load %Vector2, ptr %literal, align 4
+  ret %Vector2 %2
+}
+
+; Function Attrs:
+define %Vector2 @vector2_subtract_value([2 x float] %0, float %1) #0 {
+entry:
+  %v = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store [2 x float] %0, ptr %v, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load %Vector2, ptr %literal, align 4
+  ret %Vector2 %2
+}
diff --git a/test/test_suite7/abi/vec2_wasm.c3t b/test/test_suite7/abi/vec2_wasm.c3t
new file mode 100644
index 000000000..0a07e9ce4
--- /dev/null
+++ b/test/test_suite7/abi/vec2_wasm.c3t
@@ -0,0 +1,85 @@
+// #target: wasm32
+module abi;
+
+struct Vector2 {
+  float x;
+  float y;
+}
+fn Vector2 vector2_zero() @extern("vector2_zero") { return {}; }
+fn Vector2 vector2_one() @extern("vector2_one") { return {}; }
+fn Vector2 vector2_add(Vector2 v1, Vector2 v2) @extern("vector2_add") { return {}; }
+fn Vector2 vector2_add_value(Vector2 v, float add) @extern("vector2_add_value") { return {}; }
+fn Vector2 vector2_subtract(Vector2 v1, Vector2 v2) @extern("vector2_subtract") { return {}; }
+fn Vector2 vector2_subtract_value(Vector2 v, float sub) @extern("vector2_subtract_value")  { return {}; }
+
+/* #expect: abi.ll
+
+target triple = "wasm32-unknown-unknown"
+
+%Vector2 = type { float, float }
+
+define void @vector2_zero(ptr noalias sret(%Vector2) align 4 %0) #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 8, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @vector2_one(ptr noalias sret(%Vector2) align 4 %0) #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 8, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @vector2_add(ptr noalias sret(%Vector2) align 4 %0, ptr byval(%Vector2) align 4 %1, ptr byval(%Vector2) align 4 %2) #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 8, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @vector2_add_value(ptr noalias sret(%Vector2) align 4 %0, ptr byval(%Vector2) align 4 %1, float %2) #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 8, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @vector2_subtract(ptr noalias sret(%Vector2) align 4 %0, ptr byval(%Vector2) align 4 %1, ptr byval(%Vector2) align 4 %2) #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 8, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define void @vector2_subtract_value(ptr noalias sret(%Vector2) align 4 %0, ptr byval(%Vector2) align 4 %1, float %2) #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i32 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 8, i1 false)
+  ret void
+}
+
diff --git a/test/test_suite7/abi/vec2_x64.c3t b/test/test_suite7/abi/vec2_x64.c3t
new file mode 100644
index 000000000..2ac743251
--- /dev/null
+++ b/test/test_suite7/abi/vec2_x64.c3t
@@ -0,0 +1,94 @@
+// #target: macos-x64
+module abi;
+
+struct Vector2 {
+  float x;
+  float y;
+}
+fn Vector2 vector2_zero() @extern("vector2_zero") { return {}; }
+fn Vector2 vector2_one() @extern("vector2_one") { return {}; }
+fn Vector2 vector2_add(Vector2 v1, Vector2 v2) @extern("vector2_add") { return {}; }
+fn Vector2 vector2_add_value(Vector2 v, float add) @extern("vector2_add_value") { return {}; }
+fn Vector2 vector2_subtract(Vector2 v1, Vector2 v2) @extern("vector2_subtract") { return {}; }
+fn Vector2 vector2_subtract_value(Vector2 v, float sub) @extern("vector2_subtract_value")  { return {}; }
+
+/* #expect: abi.ll
+
+%Vector2 = type { float, float }
+
+define <2 x float> @vector2_zero() #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %0 = load <2 x float>, ptr %literal, align 4
+  ret <2 x float> %0
+}
+
+; Function Attrs:
+define <2 x float> @vector2_one() #0 {
+entry:
+  %literal = alloca %Vector2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %0 = load <2 x float>, ptr %literal, align 4
+  ret <2 x float> %0
+}
+
+; Function Attrs:
+define <2 x float> @vector2_add(<2 x float> %0, <2 x float> %1) #0 {
+entry:
+  %v1 = alloca %Vector2, align 4
+  %v2 = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store <2 x float> %0, ptr %v1, align 4
+  store <2 x float> %1, ptr %v2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load <2 x float>, ptr %literal, align 4
+  ret <2 x float> %2
+}
+
+; Function Attrs:
+define <2 x float> @vector2_add_value(<2 x float> %0, float %1) #0 {
+entry:
+  %v = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store <2 x float> %0, ptr %v, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load <2 x float>, ptr %literal, align 4
+  ret <2 x float> %2
+}
+
+; Function Attrs:
+define <2 x float> @vector2_subtract(<2 x float> %0, <2 x float> %1) #0 {
+entry:
+  %v1 = alloca %Vector2, align 4
+  %v2 = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store <2 x float> %0, ptr %v1, align 4
+  store <2 x float> %1, ptr %v2, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load <2 x float>, ptr %literal, align 4
+  ret <2 x float> %2
+}
+
+; Function Attrs:
+define <2 x float> @vector2_subtract_value(<2 x float> %0, float %1) #0 {
+entry:
+  %v = alloca %Vector2, align 4
+  %literal = alloca %Vector2, align 4
+  store <2 x float> %0, ptr %v, align 4
+  store float 0.000000e+00, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %2 = load <2 x float>, ptr %literal, align 4
+  ret <2 x float> %2
+}
diff --git a/test/test_suite7/abi/wasm_extern.c3t b/test/test_suite7/abi/wasm_extern.c3t
new file mode 100644
index 000000000..9d269cdca
--- /dev/null
+++ b/test/test_suite7/abi/wasm_extern.c3t
@@ -0,0 +1,17 @@
+// #target: wasm32
+module test;
+extern fn int get_abc();
+fn int hello() @export("fgh")
+{
+	return 1;
+}
+
+/* #expect: test.ll
+
+target triple = "wasm32-unknown-unknown"
+
+declare i32 @get_abc() #0
+define i32 @fgh() #1
+
+attributes #0 = { nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" "wasm-import-name"="get_abc" }
+attributes #1 = { nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" "wasm-export-name"="fgh" }
diff --git a/test/test_suite7/abi/x64alignarray.c3t b/test/test_suite7/abi/x64alignarray.c3t
new file mode 100644
index 000000000..31f5d990b
--- /dev/null
+++ b/test/test_suite7/abi/x64alignarray.c3t
@@ -0,0 +1,26 @@
+// #target: macos-x64
+module test;
+
+extern fn void test1_f(void *);
+
+fn void test1_g()
+{
+  float[4] x;
+  test1_f(&x);
+}
+
+/* #expect: test.ll
+
+define void @test.test1_g() #0 {
+entry:
+  %x = alloca [4 x float], align 16
+  store float 0.000000e+00, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  store float 0.000000e+00, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i64 12
+  store float 0.000000e+00, ptr %ptradd2, align 4
+  call void @test1_f(ptr %x)
+  ret void
+}
diff --git a/test/test_suite7/any/any_in_any.c3t b/test/test_suite7/any/any_in_any.c3t
new file mode 100644
index 000000000..56e828ea1
--- /dev/null
+++ b/test/test_suite7/any/any_in_any.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module foo;
+fn void main()
+{
+	any x;
+	x = &x;
+	x = &&(&x);
+	x = &&(&&(&x));
+}
+/* #expect: foo.ll
+
+%any = type { ptr, i64 }
+@"$ct.any$" = linkonce global %.introspect { i8 7, i64 0, ptr null, i64 16, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.p$any$" = linkonce global %.introspect { i8 19, i64 0, ptr null, i64 8, i64 ptrtoint (ptr @"$ct.any$" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.p$p$any$" = linkonce global %.introspect { i8 19, i64 0, ptr null, i64 8, i64 ptrtoint (ptr @"$ct.p$any$" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @foo.main() #0 {
+entry:
+  %x = alloca %any, align 8
+  %taddr = alloca ptr, align 8
+  %taddr1 = alloca ptr, align 8
+  %taddr2 = alloca ptr, align 8
+  store %any zeroinitializer, ptr %x, align 8
+  %0 = insertvalue %any undef, ptr %x, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.any$" to i64), 1
+  store %any %1, ptr %x, align 8
+  store ptr %x, ptr %taddr, align 8
+  %2 = insertvalue %any undef, ptr %taddr, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.p$any$" to i64), 1
+  store %any %3, ptr %x, align 8
+  store ptr %x, ptr %taddr1, align 8
+  store ptr %taddr1, ptr %taddr2, align 8
+  %4 = insertvalue %any undef, ptr %taddr2, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.p$p$any$" to i64), 1
+  store %any %5, ptr %x, align 8
+  ret void
+}
diff --git a/test/test_suite7/any/casting_voidptr_to_any.c3 b/test/test_suite7/any/casting_voidptr_to_any.c3
new file mode 100644
index 000000000..e4999e63a
--- /dev/null
+++ b/test/test_suite7/any/casting_voidptr_to_any.c3
@@ -0,0 +1,26 @@
+module mylib::ifaces;
+interface IOp {
+    fn void op();
+}
+module mylib(<Type>);
+import std::io;
+import mylib::ifaces;
+struct Op (IOp){
+    Type data;
+}
+fn void Op.op(&self) @dynamic => io::printn("op");
+module myapp;
+import mylib;
+fn void test(void* tptr){
+    // this work
+    IOp iop = (Op(<int>)*)tptr;
+    iop.op();
+
+    // this don't work
+    iop = tptr; // #error: Casting a 'void*' to 'IOp' is not permitted
+    iop.op();
+}
+fn void main(String[] args) {
+    Op(<int>)* t = mem::new(Op(<int>), {.data = 1});
+    test(&t);
+}
diff --git a/test/test_suite7/any/generic_interface.c3 b/test/test_suite7/any/generic_interface.c3
new file mode 100644
index 000000000..6bd257af5
--- /dev/null
+++ b/test/test_suite7/any/generic_interface.c3
@@ -0,0 +1,12 @@
+module foo(<Type>);
+
+interface Baz
+{}
+
+module test;
+import foo;
+
+fn void main()
+{
+	Baz(<int>) x;
+}
diff --git a/test/test_suite7/any/interface_no_fn.c3 b/test/test_suite7/any/interface_no_fn.c3
new file mode 100644
index 000000000..62f323bc1
--- /dev/null
+++ b/test/test_suite7/any/interface_no_fn.c3
@@ -0,0 +1,4 @@
+interface IOp {
+	int val; // #error: Interfaces can only have function
+	int my_fn(); // missing fn
+}
\ No newline at end of file
diff --git a/test/test_suite7/any/interface_no_method_body_1536.c3 b/test/test_suite7/any/interface_no_method_body_1536.c3
new file mode 100644
index 000000000..8774ec6d1
--- /dev/null
+++ b/test/test_suite7/any/interface_no_method_body_1536.c3
@@ -0,0 +1,7 @@
+interface Foo
+{
+  fn int bar()
+  {                 // #error: An interface method
+    return 0;
+  }
+}
\ No newline at end of file
diff --git a/test/test_suite7/any/interface_ptr.c3 b/test/test_suite7/any/interface_ptr.c3
new file mode 100644
index 000000000..ae66baa06
--- /dev/null
+++ b/test/test_suite7/any/interface_ptr.c3
@@ -0,0 +1,8 @@
+interface Abc {}
+
+fn void main()
+{
+	Abc y;
+	typeid z = y.type;
+	void* x = y.ptr;
+}
diff --git a/test/test_suite7/any/variant_assign.c3t b/test/test_suite7/any/variant_assign.c3t
new file mode 100644
index 000000000..6e1aab1fa
--- /dev/null
+++ b/test/test_suite7/any/variant_assign.c3t
@@ -0,0 +1,406 @@
+// #target: macos-x64
+module foo;
+
+extern fn void printf(char*, ...);
+
+fn void test(any z)
+{
+    switch (z)
+    {
+        case int:
+            printf("int: %d\n", *z);
+        case double:
+            printf("double %f\n", *z);
+        default:
+            printf("Unknown type.\n");
+    }
+}
+fn void test2(any y)
+{
+    switch (z = y)
+    {
+        case int:
+            y = &&12;
+            printf("int: %d\n", *z);
+        case double:
+            printf("double %f\n", *z);
+        default:
+            printf("Unknown type.\n");
+    }
+}
+
+fn void test3(any y)
+{
+    switch (z = *y)
+    {
+        case int:
+            printf("int: %d\n", z);
+        case double:
+            printf("double %f\n", z);
+        default:
+            printf("Unknown type.\n");
+    }
+}
+
+fn int main()
+{
+    test(&&123.0);
+    test(&&1);
+    test(&&true);
+    test2(&&123.5);
+    test2(&&1);
+    test2(&&true);
+    test3(&&124.0);
+    test3(&&2);
+    test3(&&true);
+    return 0;
+}
+
+/* #expect: foo.ll
+
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.double" = linkonce global %.introspect { i8 4, i64 0, ptr null, i64 8, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.bool" = linkonce global %.introspect { i8 1, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @foo.test(i64 %0, ptr %1) #0 {
+entry:
+  %z = alloca %any, align 8
+  %switch = alloca i64, align 8
+  %z3 = alloca ptr, align 8
+  %z11 = alloca ptr, align 8
+  store i64 %0, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  store ptr %1, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %z, i64 8
+  %2 = load i64, ptr %ptradd1, align 8
+  store i64 %2, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %3 = load i64, ptr %switch, align 8
+  br label %check_subtype
+
+check_subtype:                                    ; preds = %parent_type_block, %switch.entry
+  %4 = phi i64 [ %3, %switch.entry ], [ %typeid.parent, %parent_type_block ]
+  %eq = icmp eq i64 ptrtoint (ptr @"$ct.int" to i64), %4
+  br i1 %eq, label %result_block, label %parent_type_block
+
+parent_type_block:                                ; preds = %check_subtype
+  %5 = inttoptr i64 %4 to ptr
+  %ptradd2 = getelementptr inbounds i8, ptr %5, i64 8
+  %typeid.parent = load i64, ptr %ptradd2, align 8
+  %6 = icmp eq i64 %typeid.parent, 0
+  br i1 %6, label %result_block, label %check_subtype
+
+result_block:                                     ; preds = %parent_type_block, %check_subtype
+  %7 = phi i1 [ false, %parent_type_block ], [ true, %check_subtype ]
+  br i1 %7, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %result_block
+  %8 = load ptr, ptr %z, align 8
+  store ptr %8, ptr %z3, align 8
+  %9 = load ptr, ptr %z3, align 8
+  %10 = load i32, ptr %9, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %10)
+  br label %switch.exit
+
+next_if:                                          ; preds = %result_block
+  br label %check_subtype4
+
+check_subtype4:                                   ; preds = %parent_type_block6, %next_if
+  %11 = phi i64 [ %3, %next_if ], [ %typeid.parent8, %parent_type_block6 ]
+  %eq5 = icmp eq i64 ptrtoint (ptr @"$ct.double" to i64), %11
+  br i1 %eq5, label %result_block9, label %parent_type_block6
+
+parent_type_block6:                               ; preds = %check_subtype4
+  %12 = inttoptr i64 %11 to ptr
+  %ptradd7 = getelementptr inbounds i8, ptr %12, i64 8
+  %typeid.parent8 = load i64, ptr %ptradd7, align 8
+  %13 = icmp eq i64 %typeid.parent8, 0
+  br i1 %13, label %result_block9, label %check_subtype4
+
+result_block9:                                    ; preds = %parent_type_block6, %check_subtype4
+  %14 = phi i1 [ false, %parent_type_block6 ], [ true, %check_subtype4 ]
+  br i1 %14, label %switch.case10, label %next_if12
+
+switch.case10:                                    ; preds = %result_block9
+  %15 = load ptr, ptr %z, align 8
+  store ptr %15, ptr %z11, align 8
+  %16 = load ptr, ptr %z11, align 8
+  %17 = load double, ptr %16, align 8
+  call void (ptr, ...) @printf(ptr @.str.1, double %17)
+  br label %switch.exit
+
+next_if12:                                        ; preds = %result_block9
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if12
+  call void (ptr, ...) @printf(ptr @.str.2)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case10, %switch.case
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test2(i64 %0, ptr %1) #0 {
+entry:
+  %y = alloca %any, align 8
+  %switch = alloca i64, align 8
+  %z = alloca ptr, align 8
+  %taddr = alloca i32, align 4
+  %z9 = alloca ptr, align 8
+  store i64 %0, ptr %y, align 8
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 8
+  store ptr %1, ptr %ptradd, align 8
+  %2 = load %any, ptr %y, align 8
+  %3 = extractvalue %any %2, 1
+  store i64 %3, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %4 = load i64, ptr %switch, align 8
+  br label %check_subtype
+
+check_subtype:                                    ; preds = %parent_type_block, %switch.entry
+  %5 = phi i64 [ %4, %switch.entry ], [ %typeid.parent, %parent_type_block ]
+  %eq = icmp eq i64 ptrtoint (ptr @"$ct.int" to i64), %5
+  br i1 %eq, label %result_block, label %parent_type_block
+
+parent_type_block:                                ; preds = %check_subtype
+  %6 = inttoptr i64 %5 to ptr
+  %ptradd1 = getelementptr inbounds i8, ptr %6, i64 8
+  %typeid.parent = load i64, ptr %ptradd1, align 8
+  %7 = icmp eq i64 %typeid.parent, 0
+  br i1 %7, label %result_block, label %check_subtype
+
+result_block:                                     ; preds = %parent_type_block, %check_subtype
+  %8 = phi i1 [ false, %parent_type_block ], [ true, %check_subtype ]
+  br i1 %8, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %result_block
+  %9 = extractvalue %any %2, 0
+  store ptr %9, ptr %z, align 8
+  store i32 12, ptr %taddr, align 4
+  %10 = insertvalue %any undef, ptr %taddr, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %11, ptr %y, align 8
+  %12 = load ptr, ptr %z, align 8
+  %13 = load i32, ptr %12, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %13)
+  br label %switch.exit
+
+next_if:                                          ; preds = %result_block
+  br label %check_subtype2
+
+check_subtype2:                                   ; preds = %parent_type_block4, %next_if
+  %14 = phi i64 [ %4, %next_if ], [ %typeid.parent6, %parent_type_block4 ]
+  %eq3 = icmp eq i64 ptrtoint (ptr @"$ct.double" to i64), %14
+  br i1 %eq3, label %result_block7, label %parent_type_block4
+
+parent_type_block4:                               ; preds = %check_subtype2
+  %15 = inttoptr i64 %14 to ptr
+  %ptradd5 = getelementptr inbounds i8, ptr %15, i64 8
+  %typeid.parent6 = load i64, ptr %ptradd5, align 8
+  %16 = icmp eq i64 %typeid.parent6, 0
+  br i1 %16, label %result_block7, label %check_subtype2
+
+result_block7:                                    ; preds = %parent_type_block4, %check_subtype2
+  %17 = phi i1 [ false, %parent_type_block4 ], [ true, %check_subtype2 ]
+  br i1 %17, label %switch.case8, label %next_if10
+
+switch.case8:                                     ; preds = %result_block7
+  %18 = extractvalue %any %2, 0
+  store ptr %18, ptr %z9, align 8
+  %19 = load ptr, ptr %z9, align 8
+  %20 = load double, ptr %19, align 8
+  call void (ptr, ...) @printf(ptr @.str.4, double %20)
+  br label %switch.exit
+
+next_if10:                                        ; preds = %result_block7
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if10
+  call void (ptr, ...) @printf(ptr @.str.5)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case8, %switch.case
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test3(i64 %0, ptr %1) #0 {
+entry:
+  %y = alloca %any, align 8
+  %switch = alloca i64, align 8
+  %z = alloca i32, align 4
+  %z9 = alloca double, align 8
+  store i64 %0, ptr %y, align 8
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 8
+  store ptr %1, ptr %ptradd, align 8
+  %2 = load %any, ptr %y, align 8
+  %3 = extractvalue %any %2, 1
+  store i64 %3, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %4 = load i64, ptr %switch, align 8
+  br label %check_subtype
+
+check_subtype:                                    ; preds = %parent_type_block, %switch.entry
+  %5 = phi i64 [ %4, %switch.entry ], [ %typeid.parent, %parent_type_block ]
+  %eq = icmp eq i64 ptrtoint (ptr @"$ct.int" to i64), %5
+  br i1 %eq, label %result_block, label %parent_type_block
+
+parent_type_block:                                ; preds = %check_subtype
+  %6 = inttoptr i64 %5 to ptr
+  %ptradd1 = getelementptr inbounds i8, ptr %6, i64 8
+  %typeid.parent = load i64, ptr %ptradd1, align 8
+  %7 = icmp eq i64 %typeid.parent, 0
+  br i1 %7, label %result_block, label %check_subtype
+
+result_block:                                     ; preds = %parent_type_block, %check_subtype
+  %8 = phi i1 [ false, %parent_type_block ], [ true, %check_subtype ]
+  br i1 %8, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %result_block
+  %9 = extractvalue %any %2, 0
+  %10 = load i32, ptr %9, align 4
+  store i32 %10, ptr %z, align 4
+  %11 = load i32, ptr %z, align 4
+  call void (ptr, ...) @printf(ptr @.str.6, i32 %11)
+  br label %switch.exit
+
+next_if:                                          ; preds = %result_block
+  br label %check_subtype2
+
+check_subtype2:                                   ; preds = %parent_type_block4, %next_if
+  %12 = phi i64 [ %4, %next_if ], [ %typeid.parent6, %parent_type_block4 ]
+  %eq3 = icmp eq i64 ptrtoint (ptr @"$ct.double" to i64), %12
+  br i1 %eq3, label %result_block7, label %parent_type_block4
+
+parent_type_block4:                               ; preds = %check_subtype2
+  %13 = inttoptr i64 %12 to ptr
+  %ptradd5 = getelementptr inbounds i8, ptr %13, i64 8
+  %typeid.parent6 = load i64, ptr %ptradd5, align 8
+  %14 = icmp eq i64 %typeid.parent6, 0
+  br i1 %14, label %result_block7, label %check_subtype2
+
+result_block7:                                    ; preds = %parent_type_block4, %check_subtype2
+  %15 = phi i1 [ false, %parent_type_block4 ], [ true, %check_subtype2 ]
+  br i1 %15, label %switch.case8, label %next_if10
+
+switch.case8:                                     ; preds = %result_block7
+  %16 = extractvalue %any %2, 0
+  %17 = load double, ptr %16, align 8
+  store double %17, ptr %z9, align 8
+  %18 = load double, ptr %z9, align 8
+  call void (ptr, ...) @printf(ptr @.str.7, double %18)
+  br label %switch.exit
+
+next_if10:                                        ; preds = %result_block7
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if10
+  call void (ptr, ...) @printf(ptr @.str.8)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case8, %switch.case
+  ret void
+}
+
+; Function Attrs:
+define i32 @main() #0 {
+entry:
+  %taddr = alloca double, align 8
+  %taddr1 = alloca %any, align 8
+  %taddr2 = alloca i32, align 4
+  %taddr3 = alloca %any, align 8
+  %taddr7 = alloca i8, align 1
+  %taddr8 = alloca %any, align 8
+  %taddr12 = alloca double, align 8
+  %taddr13 = alloca %any, align 8
+  %taddr17 = alloca i32, align 4
+  %taddr18 = alloca %any, align 8
+  %taddr22 = alloca i8, align 1
+  %taddr23 = alloca %any, align 8
+  %taddr27 = alloca double, align 8
+  %taddr28 = alloca %any, align 8
+  %taddr32 = alloca i32, align 4
+  %taddr33 = alloca %any, align 8
+  %taddr37 = alloca i8, align 1
+  %taddr38 = alloca %any, align 8
+  store double 1.230000e+02, ptr %taddr, align 8
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.double" to i64), 1
+  store %any %1, ptr %taddr1, align 8
+  %lo = load i64, ptr %taddr1, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr1, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  call void @foo.test(i64 %lo, ptr %hi)
+  store i32 1, ptr %taddr2, align 4
+  %2 = insertvalue %any undef, ptr %taddr2, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %3, ptr %taddr3, align 8
+  %lo4 = load i64, ptr %taddr3, align 8
+  %ptradd5 = getelementptr inbounds i8, ptr %taddr3, i64 8
+  %hi6 = load ptr, ptr %ptradd5, align 8
+  call void @foo.test(i64 %lo4, ptr %hi6)
+  store i8 1, ptr %taddr7, align 1
+  %4 = insertvalue %any undef, ptr %taddr7, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %5, ptr %taddr8, align 8
+  %lo9 = load i64, ptr %taddr8, align 8
+  %ptradd10 = getelementptr inbounds i8, ptr %taddr8, i64 8
+  %hi11 = load ptr, ptr %ptradd10, align 8
+  call void @foo.test(i64 %lo9, ptr %hi11)
+  store double 1.235000e+02, ptr %taddr12, align 8
+  %6 = insertvalue %any undef, ptr %taddr12, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.double" to i64), 1
+  store %any %7, ptr %taddr13, align 8
+  %lo14 = load i64, ptr %taddr13, align 8
+  %ptradd15 = getelementptr inbounds i8, ptr %taddr13, i64 8
+  %hi16 = load ptr, ptr %ptradd15, align 8
+  call void @foo.test2(i64 %lo14, ptr %hi16)
+  store i32 1, ptr %taddr17, align 4
+  %8 = insertvalue %any undef, ptr %taddr17, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %9, ptr %taddr18, align 8
+  %lo19 = load i64, ptr %taddr18, align 8
+  %ptradd20 = getelementptr inbounds i8, ptr %taddr18, i64 8
+  %hi21 = load ptr, ptr %ptradd20, align 8
+  call void @foo.test2(i64 %lo19, ptr %hi21)
+  store i8 1, ptr %taddr22, align 1
+  %10 = insertvalue %any undef, ptr %taddr22, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %11, ptr %taddr23, align 8
+  %lo24 = load i64, ptr %taddr23, align 8
+  %ptradd25 = getelementptr inbounds i8, ptr %taddr23, i64 8
+  %hi26 = load ptr, ptr %ptradd25, align 8
+  call void @foo.test2(i64 %lo24, ptr %hi26)
+  store double 1.240000e+02, ptr %taddr27, align 8
+  %12 = insertvalue %any undef, ptr %taddr27, 0
+  %13 = insertvalue %any %12, i64 ptrtoint (ptr @"$ct.double" to i64), 1
+  store %any %13, ptr %taddr28, align 8
+  %lo29 = load i64, ptr %taddr28, align 8
+  %ptradd30 = getelementptr inbounds i8, ptr %taddr28, i64 8
+  %hi31 = load ptr, ptr %ptradd30, align 8
+  call void @foo.test3(i64 %lo29, ptr %hi31)
+  store i32 2, ptr %taddr32, align 4
+  %14 = insertvalue %any undef, ptr %taddr32, 0
+  %15 = insertvalue %any %14, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %15, ptr %taddr33, align 8
+  %lo34 = load i64, ptr %taddr33, align 8
+  %ptradd35 = getelementptr inbounds i8, ptr %taddr33, i64 8
+  %hi36 = load ptr, ptr %ptradd35, align 8
+  call void @foo.test3(i64 %lo34, ptr %hi36)
+  store i8 1, ptr %taddr37, align 1
+  %16 = insertvalue %any undef, ptr %taddr37, 0
+  %17 = insertvalue %any %16, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %17, ptr %taddr38, align 8
+  %lo39 = load i64, ptr %taddr38, align 8
+  %ptradd40 = getelementptr inbounds i8, ptr %taddr38, i64 8
+  %hi41 = load ptr, ptr %ptradd40, align 8
+  call void @foo.test3(i64 %lo39, ptr %hi41)
+  ret i32 0
+}
diff --git a/test/test_suite7/any/variant_switch.c3t b/test/test_suite7/any/variant_switch.c3t
new file mode 100644
index 000000000..7496d4d2d
--- /dev/null
+++ b/test/test_suite7/any/variant_switch.c3t
@@ -0,0 +1,165 @@
+// #target: macos-x64
+module foo;
+
+extern fn void printf(char*, ...);
+
+fn void test(any z)
+{
+    switch (z)
+    {
+        case int:
+            printf("int: %d\n", *z);
+            *z = 3;
+        case double:
+            printf("double %f\n", *z);
+        default:
+            printf("Unknown type.\n");
+    }
+    if (z.type == int.typeid)
+    {
+        printf("int: %d\n", *(int*)(z));
+    }
+}
+fn int main()
+{
+    test(&&123.0);
+    test(&&1);
+    test(&&true);
+    return 0;
+}
+
+/* #expect: foo.ll
+
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.double" = linkonce global %.introspect { i8 4, i64 0, ptr null, i64 8, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.bool" = linkonce global %.introspect { i8 1, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @foo.test(i64 %0, ptr %1) #0 {
+entry:
+  %z = alloca %any, align 8
+  %switch = alloca i64, align 8
+  %z3 = alloca ptr, align 8
+  %z11 = alloca ptr, align 8
+  store i64 %0, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  store ptr %1, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %z, i64 8
+  %2 = load i64, ptr %ptradd1, align 8
+  store i64 %2, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %3 = load i64, ptr %switch, align 8
+  br label %check_subtype
+
+check_subtype:                                    ; preds = %parent_type_block, %switch.entry
+  %4 = phi i64 [ %3, %switch.entry ], [ %typeid.parent, %parent_type_block ]
+  %eq = icmp eq i64 ptrtoint (ptr @"$ct.int" to i64), %4
+  br i1 %eq, label %result_block, label %parent_type_block
+
+parent_type_block:                                ; preds = %check_subtype
+  %5 = inttoptr i64 %4 to ptr
+  %ptradd2 = getelementptr inbounds i8, ptr %5, i64 8
+  %typeid.parent = load i64, ptr %ptradd2, align 8
+  %6 = icmp eq i64 %typeid.parent, 0
+  br i1 %6, label %result_block, label %check_subtype
+
+result_block:                                     ; preds = %parent_type_block, %check_subtype
+  %7 = phi i1 [ false, %parent_type_block ], [ true, %check_subtype ]
+  br i1 %7, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %result_block
+  %8 = load ptr, ptr %z, align 8
+  store ptr %8, ptr %z3, align 8
+  %9 = load ptr, ptr %z3, align 8
+  %10 = load i32, ptr %9, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %10)
+  %11 = load ptr, ptr %z3, align 8
+  store i32 3, ptr %11, align 4
+  br label %switch.exit
+
+next_if:                                          ; preds = %result_block
+  br label %check_subtype4
+
+check_subtype4:                                   ; preds = %parent_type_block6, %next_if
+  %12 = phi i64 [ %3, %next_if ], [ %typeid.parent8, %parent_type_block6 ]
+  %eq5 = icmp eq i64 ptrtoint (ptr @"$ct.double" to i64), %12
+  br i1 %eq5, label %result_block9, label %parent_type_block6
+
+parent_type_block6:                               ; preds = %check_subtype4
+  %13 = inttoptr i64 %12 to ptr
+  %ptradd7 = getelementptr inbounds i8, ptr %13, i64 8
+  %typeid.parent8 = load i64, ptr %ptradd7, align 8
+  %14 = icmp eq i64 %typeid.parent8, 0
+  br i1 %14, label %result_block9, label %check_subtype4
+
+result_block9:                                    ; preds = %parent_type_block6, %check_subtype4
+  %15 = phi i1 [ false, %parent_type_block6 ], [ true, %check_subtype4 ]
+  br i1 %15, label %switch.case10, label %next_if12
+
+switch.case10:                                    ; preds = %result_block9
+  %16 = load ptr, ptr %z, align 8
+  store ptr %16, ptr %z11, align 8
+  %17 = load ptr, ptr %z11, align 8
+  %18 = load double, ptr %17, align 8
+  call void (ptr, ...) @printf(ptr @.str.1, double %18)
+  br label %switch.exit
+
+next_if12:                                        ; preds = %result_block9
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if12
+  call void (ptr, ...) @printf(ptr @.str.2)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case10, %switch.case
+  %ptradd13 = getelementptr inbounds i8, ptr %z, i64 8
+  %19 = load i64, ptr %ptradd13, align 8
+  %eq14 = icmp eq i64 %19, ptrtoint (ptr @"$ct.int" to i64)
+  br i1 %eq14, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %switch.exit
+  %20 = load ptr, ptr %z, align 8
+  %21 = load i32, ptr %20, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %21)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %switch.exit
+  ret void
+}
+
+; Function Attrs:
+define i32 @main() #0 {
+entry:
+  %taddr = alloca double, align 8
+  %taddr1 = alloca %any, align 8
+  %taddr2 = alloca i32, align 4
+  %taddr3 = alloca %any, align 8
+  %taddr7 = alloca i8, align 1
+  %taddr8 = alloca %any, align 8
+  store double 1.230000e+02, ptr %taddr, align 8
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.double" to i64), 1
+  store %any %1, ptr %taddr1, align 8
+  %lo = load i64, ptr %taddr1, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr1, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  call void @foo.test(i64 %lo, ptr %hi)
+  store i32 1, ptr %taddr2, align 4
+  %2 = insertvalue %any undef, ptr %taddr2, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %3, ptr %taddr3, align 8
+  %lo4 = load i64, ptr %taddr3, align 8
+  %ptradd5 = getelementptr inbounds i8, ptr %taddr3, i64 8
+  %hi6 = load ptr, ptr %ptradd5, align 8
+  call void @foo.test(i64 %lo4, ptr %hi6)
+  store i8 1, ptr %taddr7, align 1
+  %4 = insertvalue %any undef, ptr %taddr7, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %5, ptr %taddr8, align 8
+  %lo9 = load i64, ptr %taddr8, align 8
+  %ptradd10 = getelementptr inbounds i8, ptr %taddr8, i64 8
+  %hi11 = load ptr, ptr %ptradd10, align 8
+  call void @foo.test(i64 %lo9, ptr %hi11)
+  ret i32 0
+}
diff --git a/test/test_suite7/any/variant_test.c3t b/test/test_suite7/any/variant_test.c3t
new file mode 100644
index 000000000..cbb329af0
--- /dev/null
+++ b/test/test_suite7/any/variant_test.c3t
@@ -0,0 +1,355 @@
+// #target: macos-x64
+module foo;
+extern fn void printf(char*, ...);
+
+fn void test(any x)
+{
+    switch (x.type)
+    {
+        case int:
+            printf("Was int\n");
+        case double:
+            printf("Was double\n");
+        case any:
+            printf("Was variant\n");
+        case int*:
+            printf("Was int*\n");
+        default:
+            printf("Unknown type\n");
+    }
+}
+
+fn void test_all(any... y)
+{
+    foreach (element : y)
+    {
+        test(element);
+    }
+}
+
+fn void main()
+{
+    any x = &&1;
+    int z;
+    any y = &z;
+    typeid g = y.type;
+    typeid h = x.type;
+    if (y.type == int.typeid)
+    {
+        printf("y int match\n");
+    }
+    if (x.type == int.typeid)
+    {
+        printf("x int match\n");
+    }
+    y = &&1.0;
+    x = &x;
+    if (y.type == int.typeid)
+    {
+        printf("y int match\n");
+    }
+    if (x.type == int.typeid)
+    {
+        printf("x int match\n");
+    }
+    test(x);
+    test(&&1.0);
+    test(&&1);
+    test(&&true);
+    printf("----\n");
+    int* df = null;
+    test_all(x, x, &&1.0, &x, &df);
+}
+
+/* #expect: foo.ll
+
+%any = type { ptr, i64 }
+%"any[]" = type { ptr, i64 }
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.double" = linkonce global %.introspect { i8 4, i64 0, ptr null, i64 8, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.any$" = linkonce global %.introspect { i8 7, i64 0, ptr null, i64 16, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.p$int" = linkonce global %.introspect { i8 19, i64 0, ptr null, i64 8, i64 ptrtoint (ptr @"$ct.int" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.bool" = linkonce global %.introspect { i8 1, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @foo.test(i64 %0, ptr %1) #0 {
+entry:
+  %x = alloca %any, align 8
+  %switch = alloca i64, align 8
+  store i64 %0, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  store ptr %1, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  %2 = load i64, ptr %ptradd1, align 8
+  store i64 %2, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %3 = load i64, ptr %switch, align 8
+  br label %check_subtype
+
+check_subtype:                                    ; preds = %parent_type_block, %switch.entry
+  %4 = phi i64 [ %3, %switch.entry ], [ %typeid.parent, %parent_type_block ]
+  %eq = icmp eq i64 ptrtoint (ptr @"$ct.int" to i64), %4
+  br i1 %eq, label %result_block, label %parent_type_block
+
+parent_type_block:                                ; preds = %check_subtype
+  %5 = inttoptr i64 %4 to ptr
+  %ptradd2 = getelementptr inbounds i8, ptr %5, i64 8
+  %typeid.parent = load i64, ptr %ptradd2, align 8
+  %6 = icmp eq i64 %typeid.parent, 0
+  br i1 %6, label %result_block, label %check_subtype
+
+result_block:                                     ; preds = %parent_type_block, %check_subtype
+  %7 = phi i1 [ false, %parent_type_block ], [ true, %check_subtype ]
+  br i1 %7, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %result_block
+  call void (ptr, ...) @printf(ptr @.str)
+  br label %switch.exit
+
+next_if:                                          ; preds = %result_block
+  br label %check_subtype3
+
+check_subtype3:                                   ; preds = %parent_type_block5, %next_if
+  %8 = phi i64 [ %3, %next_if ], [ %typeid.parent7, %parent_type_block5 ]
+  %eq4 = icmp eq i64 ptrtoint (ptr @"$ct.double" to i64), %8
+  br i1 %eq4, label %result_block8, label %parent_type_block5
+
+parent_type_block5:                               ; preds = %check_subtype3
+  %9 = inttoptr i64 %8 to ptr
+  %ptradd6 = getelementptr inbounds i8, ptr %9, i64 8
+  %typeid.parent7 = load i64, ptr %ptradd6, align 8
+  %10 = icmp eq i64 %typeid.parent7, 0
+  br i1 %10, label %result_block8, label %check_subtype3
+
+result_block8:                                    ; preds = %parent_type_block5, %check_subtype3
+  %11 = phi i1 [ false, %parent_type_block5 ], [ true, %check_subtype3 ]
+  br i1 %11, label %switch.case9, label %next_if10
+
+switch.case9:                                     ; preds = %result_block8
+  call void (ptr, ...) @printf(ptr @.str.1)
+  br label %switch.exit
+
+next_if10:                                        ; preds = %result_block8
+  br label %check_subtype11
+
+check_subtype11:                                  ; preds = %parent_type_block13, %next_if10
+  %12 = phi i64 [ %3, %next_if10 ], [ %typeid.parent15, %parent_type_block13 ]
+  %eq12 = icmp eq i64 ptrtoint (ptr @"$ct.any$" to i64), %12
+  br i1 %eq12, label %result_block16, label %parent_type_block13
+
+parent_type_block13:                              ; preds = %check_subtype11
+  %13 = inttoptr i64 %12 to ptr
+  %ptradd14 = getelementptr inbounds i8, ptr %13, i64 8
+  %typeid.parent15 = load i64, ptr %ptradd14, align 8
+  %14 = icmp eq i64 %typeid.parent15, 0
+  br i1 %14, label %result_block16, label %check_subtype11
+
+result_block16:                                   ; preds = %parent_type_block13, %check_subtype11
+  %15 = phi i1 [ false, %parent_type_block13 ], [ true, %check_subtype11 ]
+  br i1 %15, label %switch.case17, label %next_if18
+
+switch.case17:                                    ; preds = %result_block16
+  call void (ptr, ...) @printf(ptr @.str.2)
+  br label %switch.exit
+
+next_if18:                                        ; preds = %result_block16
+  br label %check_subtype19
+
+check_subtype19:                                  ; preds = %parent_type_block21, %next_if18
+  %16 = phi i64 [ %3, %next_if18 ], [ %typeid.parent23, %parent_type_block21 ]
+  %eq20 = icmp eq i64 ptrtoint (ptr @"$ct.p$int" to i64), %16
+  br i1 %eq20, label %result_block24, label %parent_type_block21
+
+parent_type_block21:                              ; preds = %check_subtype19
+  %17 = inttoptr i64 %16 to ptr
+  %ptradd22 = getelementptr inbounds i8, ptr %17, i64 8
+  %typeid.parent23 = load i64, ptr %ptradd22, align 8
+  %18 = icmp eq i64 %typeid.parent23, 0
+  br i1 %18, label %result_block24, label %check_subtype19
+
+result_block24:                                   ; preds = %parent_type_block21, %check_subtype19
+  %19 = phi i1 [ false, %parent_type_block21 ], [ true, %check_subtype19 ]
+  br i1 %19, label %switch.case25, label %next_if26
+
+switch.case25:                                    ; preds = %result_block24
+  call void (ptr, ...) @printf(ptr @.str.3)
+  br label %switch.exit
+
+next_if26:                                        ; preds = %result_block24
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if26
+  call void (ptr, ...) @printf(ptr @.str.4)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case25, %switch.case17, %switch.case9, %switch.case
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test_all(ptr %0, i64 %1) #0 {
+entry:
+  %y = alloca %"any[]", align 8
+  %.anon = alloca i64, align 8
+  %element = alloca %any, align 8
+  store ptr %0, ptr %y, align 8
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 8
+  %2 = load i64, ptr %ptradd1, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %3 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %3, %2
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load ptr, ptr %y, align 8
+  %5 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [16 x i8], ptr %4, i64 %5
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %element, ptr align 8 %ptroffset, i32 16, i1 false)
+  %lo = load i64, ptr %element, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %element, i64 8
+  %hi = load ptr, ptr %ptradd2, align 8
+  call void @foo.test(i64 %lo, ptr %hi)
+  %6 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %6, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %x = alloca %any, align 8
+  %taddr = alloca i32, align 4
+  %z = alloca i32, align 4
+  %y = alloca %any, align 8
+  %g = alloca i64, align 8
+  %h = alloca i64, align 8
+  %taddr7 = alloca double, align 8
+  %taddr17 = alloca double, align 8
+  %taddr18 = alloca %any, align 8
+  %taddr22 = alloca i32, align 4
+  %taddr23 = alloca %any, align 8
+  %taddr27 = alloca i8, align 1
+  %taddr28 = alloca %any, align 8
+  %df = alloca ptr, align 8
+  %varargslots = alloca [5 x %any], align 16
+  %taddr33 = alloca double, align 8
+  store i32 1, ptr %taddr, align 4
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %x, align 8
+  store i32 0, ptr %z, align 4
+  %2 = insertvalue %any undef, ptr %z, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %3, ptr %y, align 8
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 8
+  %4 = load i64, ptr %ptradd, align 8
+  store i64 %4, ptr %g, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  %5 = load i64, ptr %ptradd1, align 8
+  store i64 %5, ptr %h, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %y, i64 8
+  %6 = load i64, ptr %ptradd2, align 8
+  %eq = icmp eq i64 %6, ptrtoint (ptr @"$ct.int" to i64)
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  call void (ptr, ...) @printf(ptr @.str.5)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  %ptradd3 = getelementptr inbounds i8, ptr %x, i64 8
+  %7 = load i64, ptr %ptradd3, align 8
+  %eq4 = icmp eq i64 %7, ptrtoint (ptr @"$ct.int" to i64)
+  br i1 %eq4, label %if.then5, label %if.exit6
+
+if.then5:                                         ; preds = %if.exit
+  call void (ptr, ...) @printf(ptr @.str.6)
+  br label %if.exit6
+
+if.exit6:                                         ; preds = %if.then5, %if.exit
+  store double 1.000000e+00, ptr %taddr7, align 8
+  %8 = insertvalue %any undef, ptr %taddr7, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.double" to i64), 1
+  store %any %9, ptr %y, align 8
+  %10 = insertvalue %any undef, ptr %x, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.any$" to i64), 1
+  store %any %11, ptr %x, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %y, i64 8
+  %12 = load i64, ptr %ptradd8, align 8
+  %eq9 = icmp eq i64 %12, ptrtoint (ptr @"$ct.int" to i64)
+  br i1 %eq9, label %if.then10, label %if.exit11
+
+if.then10:                                        ; preds = %if.exit6
+  call void (ptr, ...) @printf(ptr @.str.7)
+  br label %if.exit11
+
+if.exit11:                                        ; preds = %if.then10, %if.exit6
+  %ptradd12 = getelementptr inbounds i8, ptr %x, i64 8
+  %13 = load i64, ptr %ptradd12, align 8
+  %eq13 = icmp eq i64 %13, ptrtoint (ptr @"$ct.int" to i64)
+  br i1 %eq13, label %if.then14, label %if.exit15
+
+if.then14:                                        ; preds = %if.exit11
+  call void (ptr, ...) @printf(ptr @.str.8)
+  br label %if.exit15
+
+if.exit15:                                        ; preds = %if.then14, %if.exit11
+  %lo = load i64, ptr %x, align 8
+  %ptradd16 = getelementptr inbounds i8, ptr %x, i64 8
+  %hi = load ptr, ptr %ptradd16, align 8
+  call void @foo.test(i64 %lo, ptr %hi)
+  store double 1.000000e+00, ptr %taddr17, align 8
+  %14 = insertvalue %any undef, ptr %taddr17, 0
+  %15 = insertvalue %any %14, i64 ptrtoint (ptr @"$ct.double" to i64), 1
+  store %any %15, ptr %taddr18, align 8
+  %lo19 = load i64, ptr %taddr18, align 8
+  %ptradd20 = getelementptr inbounds i8, ptr %taddr18, i64 8
+  %hi21 = load ptr, ptr %ptradd20, align 8
+  call void @foo.test(i64 %lo19, ptr %hi21)
+  store i32 1, ptr %taddr22, align 4
+  %16 = insertvalue %any undef, ptr %taddr22, 0
+  %17 = insertvalue %any %16, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %17, ptr %taddr23, align 8
+  %lo24 = load i64, ptr %taddr23, align 8
+  %ptradd25 = getelementptr inbounds i8, ptr %taddr23, i64 8
+  %hi26 = load ptr, ptr %ptradd25, align 8
+  call void @foo.test(i64 %lo24, ptr %hi26)
+  store i8 1, ptr %taddr27, align 1
+  %18 = insertvalue %any undef, ptr %taddr27, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %19, ptr %taddr28, align 8
+  %lo29 = load i64, ptr %taddr28, align 8
+  %ptradd30 = getelementptr inbounds i8, ptr %taddr28, i64 8
+  %hi31 = load ptr, ptr %ptradd30, align 8
+  call void @foo.test(i64 %lo29, ptr %hi31)
+  call void (ptr, ...) @printf(ptr @.str.9)
+  store ptr null, ptr %df, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %varargslots, ptr align 8 %x, i32 16, i1 false)
+  %ptradd32 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %ptradd32, ptr align 8 %x, i32 16, i1 false)
+  store double 1.000000e+00, ptr %taddr33, align 8
+  %20 = insertvalue %any undef, ptr %taddr33, 0
+  %21 = insertvalue %any %20, i64 ptrtoint (ptr @"$ct.double" to i64), 1
+  %ptradd34 = getelementptr inbounds i8, ptr %varargslots, i64 32
+  store %any %21, ptr %ptradd34, align 16
+  %22 = insertvalue %any undef, ptr %x, 0
+  %23 = insertvalue %any %22, i64 ptrtoint (ptr @"$ct.any$" to i64), 1
+  %ptradd35 = getelementptr inbounds i8, ptr %varargslots, i64 48
+  store %any %23, ptr %ptradd35, align 16
+  %24 = insertvalue %any undef, ptr %df, 0
+  %25 = insertvalue %any %24, i64 ptrtoint (ptr @"$ct.p$int" to i64), 1
+  %ptradd36 = getelementptr inbounds i8, ptr %varargslots, i64 64
+  store %any %25, ptr %ptradd36, align 16
+  call void @foo.test_all(ptr %varargslots, i64 5)
+  ret void
+}
diff --git a/test/test_suite7/arrays/array_bounds_check.c3t b/test/test_suite7/arrays/array_bounds_check.c3t
new file mode 100644
index 000000000..af971dfdb
--- /dev/null
+++ b/test/test_suite7/arrays/array_bounds_check.c3t
@@ -0,0 +1,47 @@
+// #target: macos-x64
+// #safe: yes
+module testing;
+import std::io;
+
+const FOO = (Foo[2]){ {11}, {22} };
+
+struct Foo
+{
+	int x;
+}
+
+fn void main()
+{
+	for (usz i = 0; i < 20; i++)
+	{
+		int x = FOO[i].x;
+	}
+}
+
+/* #expect: testing.ll
+
+loop.cond:                                        ; preds = %checkok, %entry
+  %0 = load i64, ptr %i, align 8
+  %gt = icmp ugt i64 20, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %i, align 8
+  %ge = icmp uge i64 %1, 2
+  %2 = call i1 @llvm.expect.i1(i1 %ge, i1 false)
+  br i1 %2, label %panic, label %checkok
+
+checkok:                                          ; preds = %loop.body
+  %ptroffset = getelementptr inbounds [4 x i8], ptr @testing.FOO, i64 %1
+  %3 = load i32, ptr %ptroffset, align 4
+  store i32 %3, ptr %x, align 4
+  %4 = load i64, ptr %i, align 8
+  %add = add i64 %4, 1
+  store i64 %add, ptr %i, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+
+panic:                                            ; preds = %loop.body
+  store i64 2, ptr %taddr, align 8
diff --git a/test/test_suite7/arrays/array_casts.c3t b/test/test_suite7/arrays/array_casts.c3t
new file mode 100644
index 000000000..f769e4678
--- /dev/null
+++ b/test/test_suite7/arrays/array_casts.c3t
@@ -0,0 +1,31 @@
+// #target: macos-x64
+
+module array_casts;
+
+fn void test()
+{
+    int[3] x;
+    int *y = &x;
+    int[] z = &x;
+}
+
+/* #expect: array_casts.ll
+
+%"int[]" = type { ptr, i64 }
+
+define void @array_casts.test() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %y = alloca ptr, align 8
+  %z = alloca %"int[]", align 8
+  store i32 0, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  store ptr %x, ptr %y, align 8
+  %0 = insertvalue %"int[]" undef, ptr %x, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %1, ptr %z, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/arrays/array_comparison.c3t b/test/test_suite7/arrays/array_comparison.c3t
new file mode 100644
index 000000000..ef0f26e47
--- /dev/null
+++ b/test/test_suite7/arrays/array_comparison.c3t
@@ -0,0 +1,248 @@
+// #target: macos-x64
+module test;
+
+extern fn void get(double[2]*);
+extern fn void get2(int[2]*);
+extern fn void get3(bool[2]*);
+
+fn void test()
+{
+	double[2] a @noinit;
+	double[2] b @noinit;
+	get(&a);
+	get(&b);
+	bool x = a == b;
+	bool y = a != b;
+
+	int[2] a2 @noinit;
+	int[2] b2 @noinit;
+	get2(&a2);
+	get2(&b2);
+	bool x2 = a2 == b2;
+	bool y2 = a2 != b2;
+
+	bool[2] a3 @noinit;
+	bool[2] b3 @noinit;
+	get3(&a3);
+    get3(&b3);
+
+	bool x3 = a3 == b3;
+	bool y3 = a3 != b3;
+
+}
+
+extern fn void aget(double[200]*);
+extern fn void aget2(int[200]*);
+extern fn void aget3(bool[200]*);
+
+fn void test2()
+{
+	double[200] a @noinit;
+	double[200] b @noinit;
+	aget(&a);
+	aget(&b);
+	bool x = a == b;
+	bool y = a != b;
+
+	int[200] a2 @noinit;
+	int[200] b2 @noinit;
+	aget2(&a2);
+	aget2(&b2);
+	bool x2 = a2 == b2;
+	bool y2 = a2 != b2;
+
+	bool[200] a3 @noinit;
+	bool[200] b3 @noinit;
+	aget3(&a3);
+	aget3(&b3);
+	bool x3 = a3 == b3;
+	bool y3 = a3 != b3;
+
+}
+
+/* #expect: test.ll
+
+define void @test.test() #0 {
+entry:
+  %a = alloca [2 x double], align 16
+  %b = alloca [2 x double], align 16
+  %x = alloca i8, align 1
+  %y = alloca i8, align 1
+  %a2 = alloca [2 x i32], align 4
+  %b2 = alloca [2 x i32], align 4
+  %x2 = alloca i8, align 1
+  %y2 = alloca i8, align 1
+  %a3 = alloca [2 x i8], align 1
+  %b3 = alloca [2 x i8], align 1
+  %x3 = alloca i8, align 1
+  %y3 = alloca i8, align 1
+  call void @get(ptr %a)
+  call void @get(ptr %b)
+  %lhs = load <2 x double>, ptr %a, align 16
+  %rhs = load <2 x double>, ptr %b, align 16
+  %cmp = fcmp oeq <2 x double> %lhs, %rhs
+  %0 = call i1 @llvm.vector.reduce.and.v2i1(<2 x i1> %cmp)
+  %1 = zext i1 %0 to i8
+  store i8 %1, ptr %x, align 1
+  %lhs1 = load <2 x double>, ptr %a, align 16
+  %rhs2 = load <2 x double>, ptr %b, align 16
+  %cmp3 = fcmp one <2 x double> %lhs1, %rhs2
+  %2 = call i1 @llvm.vector.reduce.or.v2i1(<2 x i1> %cmp3)
+  %3 = zext i1 %2 to i8
+  store i8 %3, ptr %y, align 1
+  call void @get2(ptr %a2)
+  call void @get2(ptr %b2)
+  %cmp4 = call i32 @memcmp(ptr %a2, ptr %b2, i64 8)
+  %eq = icmp eq i32 %cmp4, 0
+  %4 = zext i1 %eq to i8
+  store i8 %4, ptr %x2, align 1
+  %cmp5 = call i32 @memcmp(ptr %a2, ptr %b2, i64 8)
+  %neq = icmp ne i32 %cmp5, 0
+  %5 = zext i1 %neq to i8
+  store i8 %5, ptr %y2, align 1
+  call void @get3(ptr %a3)
+  call void @get3(ptr %b3)
+  %lhs6 = load <2 x i8>, ptr %a3, align 1
+  %rhs7 = load <2 x i8>, ptr %b3, align 1
+  %6 = trunc <2 x i8> %lhs6 to <2 x i1>
+  %7 = trunc <2 x i8> %rhs7 to <2 x i1>
+  %cmp8 = icmp eq <2 x i1> %6, %7
+  %8 = call i1 @llvm.vector.reduce.and.v2i1(<2 x i1> %cmp8)
+  %9 = zext i1 %8 to i8
+  store i8 %9, ptr %x3, align 1
+  %lhs9 = load <2 x i8>, ptr %a3, align 1
+  %rhs10 = load <2 x i8>, ptr %b3, align 1
+  %10 = trunc <2 x i8> %lhs9 to <2 x i1>
+  %11 = trunc <2 x i8> %rhs10 to <2 x i1>
+  %cmp11 = icmp ne <2 x i1> %10, %11
+  %12 = call i1 @llvm.vector.reduce.or.v2i1(<2 x i1> %cmp11)
+  %13 = zext i1 %12 to i8
+  store i8 %13, ptr %y3, align 1
+  ret void
+}
+define void @test.test2() #0 {
+entry:
+  %a = alloca [200 x double], align 16
+  %b = alloca [200 x double], align 16
+  %x = alloca i8, align 1
+  %cmp.idx = alloca i64, align 8
+  %y = alloca i8, align 1
+  %cmp.idx2 = alloca i64, align 8
+  %a2 = alloca [200 x i32], align 16
+  %b2 = alloca [200 x i32], align 16
+  %x2 = alloca i8, align 1
+  %y2 = alloca i8, align 1
+  %a3 = alloca [200 x i8], align 16
+  %b3 = alloca [200 x i8], align 16
+  %x3 = alloca i8, align 1
+  %cmp.idx14 = alloca i64, align 8
+  %y3 = alloca i8, align 1
+  %cmp.idx23 = alloca i64, align 8
+  call void @aget(ptr %a)
+  call void @aget(ptr %b)
+  store i64 0, ptr %cmp.idx, align 8
+  br label %array_loop_start
+
+array_loop_start:                                 ; preds = %array_loop_comparison, %entry
+  %0 = load i64, ptr %cmp.idx, align 8
+  %ptroffset = getelementptr inbounds [8 x i8], ptr %a, i64 %0
+  %ptroffset1 = getelementptr inbounds [8 x i8], ptr %b, i64 %0
+  %1 = load double, ptr %ptroffset, align 8
+  %2 = load double, ptr %ptroffset1, align 8
+  %eq = fcmp oeq double %1, %2
+  br i1 %eq, label %array_loop_comparison, label %array_cmp_exit
+
+array_loop_comparison:                            ; preds = %array_loop_start
+  %inc = add i64 %0, 1
+  store i64 %inc, ptr %cmp.idx, align 8
+  %lt = icmp ult i64 %inc, 200
+  br i1 %lt, label %array_loop_start, label %array_cmp_exit
+
+array_cmp_exit:                                   ; preds = %array_loop_comparison, %array_loop_start
+  %array_cmp_phi = phi i1 [ true, %array_loop_comparison ], [ false, %array_loop_start ]
+  %3 = zext i1 %array_cmp_phi to i8
+  store i8 %3, ptr %x, align 1
+  store i64 0, ptr %cmp.idx2, align 8
+  br label %array_loop_start3
+
+array_loop_start3:                                ; preds = %array_loop_comparison7, %array_cmp_exit
+  %4 = load i64, ptr %cmp.idx2, align 8
+  %ptroffset4 = getelementptr inbounds [8 x i8], ptr %a, i64 %4
+  %ptroffset5 = getelementptr inbounds [8 x i8], ptr %b, i64 %4
+  %5 = load double, ptr %ptroffset4, align 8
+  %6 = load double, ptr %ptroffset5, align 8
+  %eq6 = fcmp oeq double %5, %6
+  br i1 %eq6, label %array_loop_comparison7, label %array_cmp_exit10
+
+array_loop_comparison7:                           ; preds = %array_loop_start3
+  %inc8 = add i64 %4, 1
+  store i64 %inc8, ptr %cmp.idx2, align 8
+  %lt9 = icmp ult i64 %inc8, 200
+  br i1 %lt9, label %array_loop_start3, label %array_cmp_exit10
+
+array_cmp_exit10:                                 ; preds = %array_loop_comparison7, %array_loop_start3
+  %array_cmp_phi11 = phi i1 [ false, %array_loop_comparison7 ], [ true, %array_loop_start3 ]
+  %7 = zext i1 %array_cmp_phi11 to i8
+  store i8 %7, ptr %y, align 1
+  call void @aget2(ptr %a2)
+  call void @aget2(ptr %b2)
+  %cmp = call i32 @memcmp(ptr %a2, ptr %b2, i64 800)
+  %eq12 = icmp eq i32 %cmp, 0
+  %8 = zext i1 %eq12 to i8
+  store i8 %8, ptr %x2, align 1
+  %cmp13 = call i32 @memcmp(ptr %a2, ptr %b2, i64 800)
+  %neq = icmp ne i32 %cmp13, 0
+  %9 = zext i1 %neq to i8
+  store i8 %9, ptr %y2, align 1
+  call void @aget3(ptr %a3)
+  call void @aget3(ptr %b3)
+  store i64 0, ptr %cmp.idx14, align 8
+  br label %array_loop_start15
+
+array_loop_start15:                               ; preds = %array_loop_comparison18, %array_cmp_exit10
+  %10 = load i64, ptr %cmp.idx14, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a3, i64 %10
+  %ptradd16 = getelementptr inbounds i8, ptr %b3, i64 %10
+  %11 = load i8, ptr %ptradd, align 1
+  %12 = trunc i8 %11 to i1
+  %13 = load i8, ptr %ptradd16, align 1
+  %14 = trunc i8 %13 to i1
+  %eq17 = icmp eq i1 %12, %14
+  br i1 %eq17, label %array_loop_comparison18, label %array_cmp_exit21
+
+array_loop_comparison18:                          ; preds = %array_loop_start15
+  %inc19 = add i64 %10, 1
+  store i64 %inc19, ptr %cmp.idx14, align 8
+  %lt20 = icmp ult i64 %inc19, 200
+  br i1 %lt20, label %array_loop_start15, label %array_cmp_exit21
+
+array_cmp_exit21:                                 ; preds = %array_loop_comparison18, %array_loop_start15
+  %array_cmp_phi22 = phi i1 [ true, %array_loop_comparison18 ], [ false, %array_loop_start15 ]
+  %15 = zext i1 %array_cmp_phi22 to i8
+  store i8 %15, ptr %x3, align 1
+  store i64 0, ptr %cmp.idx23, align 8
+  br label %array_loop_start24
+
+array_loop_start24:                               ; preds = %array_loop_comparison28, %array_cmp_exit21
+  %16 = load i64, ptr %cmp.idx23, align 8
+  %ptradd25 = getelementptr inbounds i8, ptr %a3, i64 %16
+  %ptradd26 = getelementptr inbounds i8, ptr %b3, i64 %16
+  %17 = load i8, ptr %ptradd25, align 1
+  %18 = trunc i8 %17 to i1
+  %19 = load i8, ptr %ptradd26, align 1
+  %20 = trunc i8 %19 to i1
+  %eq27 = icmp eq i1 %18, %20
+  br i1 %eq27, label %array_loop_comparison28, label %array_cmp_exit31
+
+array_loop_comparison28:                          ; preds = %array_loop_start24
+  %inc29 = add i64 %16, 1
+  store i64 %inc29, ptr %cmp.idx23, align 8
+  %lt30 = icmp ult i64 %inc29, 200
+  br i1 %lt30, label %array_loop_start24, label %array_cmp_exit31
+
+array_cmp_exit31:                                 ; preds = %array_loop_comparison28, %array_loop_start24
+  %array_cmp_phi32 = phi i1 [ false, %array_loop_comparison28 ], [ true, %array_loop_start24 ]
+  %21 = zext i1 %array_cmp_phi32 to i8
+  store i8 %21, ptr %y3, align 1
+  ret void
+}
diff --git a/test/test_suite7/arrays/array_comparison_2.c3t b/test/test_suite7/arrays/array_comparison_2.c3t
new file mode 100644
index 000000000..23370b44a
--- /dev/null
+++ b/test/test_suite7/arrays/array_comparison_2.c3t
@@ -0,0 +1,86 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+	int[2][2] x;
+	int[2][2] y;
+	bool match = x == y;
+	int[2][2][8] z;
+	int[2][2][8] w;
+	match = z == w;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %x = alloca [2 x [2 x i32]], align 16
+  %y = alloca [2 x [2 x i32]], align 16
+  %match = alloca i8, align 1
+  %z = alloca [8 x [2 x [2 x i32]]], align 16
+  %w = alloca [8 x [2 x [2 x i32]]], align 16
+  %cmp.idx = alloca i64, align 8
+  store i32 0, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %ptradd1, i64 4
+  store i32 0, ptr %ptradd2, align 4
+  store i32 0, ptr %y, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %y, i64 4
+  store i32 0, ptr %ptradd3, align 4
+  %ptradd4 = getelementptr inbounds i8, ptr %y, i64 8
+  store i32 0, ptr %ptradd4, align 4
+  %ptradd5 = getelementptr inbounds i8, ptr %ptradd4, i64 4
+  store i32 0, ptr %ptradd5, align 4
+  %cmp = call i32 @memcmp(ptr %x, ptr %y, i64 8)
+  %eq = icmp eq i32 %cmp, 0
+  br i1 %eq, label %next_check, label %exit
+next_check:                                       ; preds = %entry
+  %ptradd6 = getelementptr inbounds i8, ptr %x, i64 8
+  %ptradd7 = getelementptr inbounds i8, ptr %y, i64 8
+  %cmp8 = call i32 @memcmp(ptr %ptradd6, ptr %ptradd7, i64 8)
+  %eq9 = icmp eq i32 %cmp8, 0
+  br i1 %eq9, label %match10, label %exit
+match10:                                          ; preds = %next_check
+  br label %exit
+exit:                                             ; preds = %match10, %next_check, %entry
+  %array_cmp_phi = phi i1 [ false, %entry ], [ false, %next_check ], [ true, %match10 ]
+  %0 = zext i1 %array_cmp_phi to i8
+  store i8 %0, ptr %match, align 1
+  call void @llvm.memset.p0.i64(ptr align 16 %z, i8 0, i64 128, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 16 %w, i8 0, i64 128, i1 false)
+  store i64 0, ptr %cmp.idx, align 8
+  br label %array_loop_start
+array_loop_start:                                 ; preds = %array_loop_comparison, %exit
+  %1 = load i64, ptr %cmp.idx, align 8
+  %ptroffset = getelementptr inbounds [16 x i8], ptr %z, i64 %1
+  %ptroffset11 = getelementptr inbounds [16 x i8], ptr %w, i64 %1
+  %cmp12 = call i32 @memcmp(ptr %ptroffset, ptr %ptroffset11, i64 8)
+  %eq13 = icmp eq i32 %cmp12, 0
+  br i1 %eq13, label %next_check14, label %exit20
+next_check14:                                     ; preds = %array_loop_start
+  %ptradd15 = getelementptr inbounds i8, ptr %ptroffset, i64 8
+  %ptradd16 = getelementptr inbounds i8, ptr %ptroffset11, i64 8
+  %cmp17 = call i32 @memcmp(ptr %ptradd15, ptr %ptradd16, i64 8)
+  %eq18 = icmp eq i32 %cmp17, 0
+  br i1 %eq18, label %match19, label %exit20
+match19:                                          ; preds = %next_check14
+  br label %exit20
+exit20:                                           ; preds = %match19, %next_check14, %array_loop_start
+  %array_cmp_phi21 = phi i1 [ false, %array_loop_start ], [ false, %next_check14 ], [ true, %match19 ]
+  br i1 %array_cmp_phi21, label %array_loop_comparison, label %array_cmp_exit
+array_loop_comparison:                            ; preds = %exit20
+  %inc = add i64 %1, 1
+  store i64 %inc, ptr %cmp.idx, align 8
+  %lt = icmp ult i64 %inc, 8
+  br i1 %lt, label %array_loop_start, label %array_cmp_exit
+array_cmp_exit:                                   ; preds = %array_loop_comparison, %exit20
+  %array_cmp_phi22 = phi i1 [ true, %array_loop_comparison ], [ false, %exit20 ]
+  %2 = zext i1 %array_cmp_phi22 to i8
+  store i8 %2, ptr %match, align 1
+  ret void
+}
+
diff --git a/test/test_suite7/arrays/array_indexing.c3 b/test/test_suite7/arrays/array_indexing.c3
new file mode 100644
index 000000000..3d5be2a87
--- /dev/null
+++ b/test/test_suite7/arrays/array_indexing.c3
@@ -0,0 +1,11 @@
+enum Foo : int
+{
+	TEST
+}
+
+int[100] a = { [Foo.TEST.ordinal] = 123 };
+
+fn void test()
+{
+	a[Foo.TEST.ordinal] = 33;
+}
\ No newline at end of file
diff --git a/test/test_suite7/arrays/array_invalid_casts.c3 b/test/test_suite7/arrays/array_invalid_casts.c3
new file mode 100644
index 000000000..869499795
--- /dev/null
+++ b/test/test_suite7/arrays/array_invalid_casts.c3
@@ -0,0 +1,12 @@
+
+fn void test()
+{
+    int[3] x;
+    double *y = &x; // #error: 'int[3]*' to 'double*
+}
+
+fn void test2()
+{
+    int[3] x;
+    double[] z = &x; // #error: 'int[3]*' to 'double[]'
+}
\ No newline at end of file
diff --git a/test/test_suite7/arrays/array_literal.c3t b/test/test_suite7/arrays/array_literal.c3t
new file mode 100644
index 000000000..9e2bad3db
--- /dev/null
+++ b/test/test_suite7/arrays/array_literal.c3t
@@ -0,0 +1,28 @@
+// #target: macos-x64
+module array_literal;
+
+fn double test(uint x)
+{
+  double[30] student_t = { 0.0 , 12.706 , 4.303 , 3.182 , 2.776 , 2.571 ,
+                               2.447 , 2.365 , 2.306 , 2.262 , 2.228 ,
+                               2.201 , 2.179 , 2.160 , 2.145 , 2.131 ,
+                               2.120 , 2.110 , 2.101 , 2.093 , 2.086 ,
+                               2.080 , 2.074 , 2.069 , 2.064 , 2.060 ,
+                               2.056 , 2.052 , 2.048 , 2.045 };
+  return student_t[x];
+}
+
+/* #expect: array_literal.ll
+
+@.__const = private unnamed_addr constant [30 x double] [double 0.000000e+00, double 1.270600e+01, double 4.303000e+00, double 3.182000e+00, double 2.776000e+00, double 2.571000e+00, double 2.447000e+00, double 2.365000e+00, double 2.306000e+00, double 2.262000e+00, double 2.228000e+00, double 2.201000e+00, double 2.179000e+00, double 2.160000e+00, double 2.145000e+00, double 2.131000e+00, double 2.120000e+00, double 2.110000e+00, double 2.101000e+00, double 2.093000e+00, double 2.086000e+00, double 2.080000e+00, double 2.074000e+00, double 2.069000e+00, double 2.064000e+00, double 2.060000e+00, double 2.056000e+00, double 2.052000e+00, double 2.048000e+00, double 2.045000e+00], align 16
+
+; Function Attrs:
+define double @array_literal.test(i32 %0) #0 {
+entry:
+  %student_t = alloca [30 x double], align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %student_t, ptr align 16 @.__const, i32 240, i1 false)
+  %zext = zext i32 %0 to i64
+  %ptroffset = getelementptr inbounds [8 x i8], ptr %student_t, i64 %zext
+  %1 = load double, ptr %ptroffset, align 8
+  ret double %1
+}
diff --git a/test/test_suite7/arrays/array_struct.c3t b/test/test_suite7/arrays/array_struct.c3t
new file mode 100644
index 000000000..d73e0e4d1
--- /dev/null
+++ b/test/test_suite7/arrays/array_struct.c3t
@@ -0,0 +1,13 @@
+// #target: macos-x64
+module test;
+
+struct Foo
+{
+    int x, y;
+}
+
+Foo[10] array @private;
+
+/* #expect: test.ll
+
+@test.array = internal unnamed_addr global [10 x %Foo] zeroinitializer, align 16
\ No newline at end of file
diff --git a/test/test_suite7/arrays/complex_array_const.c3t b/test/test_suite7/arrays/complex_array_const.c3t
new file mode 100644
index 000000000..fcd12f014
--- /dev/null
+++ b/test/test_suite7/arrays/complex_array_const.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+module test;
+
+struct Connection
+{
+   long to;
+   char* type;
+   long length;
+}
+
+Connection[3] link @private
+= { {1, "link1", 10},
+    {2, "link2", 20},
+    {3, "link3", 30} };
+
+/* #expect: test.ll
+
+@"$ct.test.Connection" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 24, i64 0, i64 3, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [6 x i8] c"link1\00", align 1
+@.str.1 = private unnamed_addr constant [6 x i8] c"link2\00", align 1
+@.str.2 = private unnamed_addr constant [6 x i8] c"link3\00", align 1
+@test.link = internal unnamed_addr global [3 x %Connection] [%Connection { i64 1, ptr @.str, i64 10 }, %Connection { i64 2, ptr @.str.1, i64 20 }, %Connection { i64 3, ptr @.str.2, i64 30 }], align 16
diff --git a/test/test_suite7/arrays/complex_inferred_array.c3t b/test/test_suite7/arrays/complex_inferred_array.c3t
new file mode 100644
index 000000000..da584132b
--- /dev/null
+++ b/test/test_suite7/arrays/complex_inferred_array.c3t
@@ -0,0 +1,17 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+	int[?][?][2][?]! y = { {{{1}, {2}}, { {3}, {4}}}};
+	int[?][?][2][?] x = { {{{1}, {2}}, { {3}, {4}}}};
+}
+
+/* #expect: test.ll
+
+
+@.__const = private unnamed_addr constant [1 x [2 x [2 x [1 x i32]]]] [[2 x [2 x [1 x i32]]] [[2 x [1 x i32]] [[1 x i32] [i32 1], [1 x i32] [i32 2]], [2 x [1 x i32]] [[1 x i32] [i32 3], [1 x i32] [i32 4]]]], align 16
+@.__const.1 = private unnamed_addr constant [1 x [2 x [2 x [1 x i32]]]] [[2 x [2 x [1 x i32]]] [[2 x [1 x i32]] [[1 x i32] [i32 1], [1 x i32] [i32 2]], [2 x [1 x i32]] [[1 x i32] [i32 3], [1 x i32] [i32 4]]]], align 16
+
+  %y = alloca [1 x [2 x [2 x [1 x i32]]]], align 16
+  %x = alloca [1 x [2 x [2 x [1 x i32]]]], align 16
diff --git a/test/test_suite7/arrays/global_array_non_const.c3 b/test/test_suite7/arrays/global_array_non_const.c3
new file mode 100644
index 000000000..18fb162b3
--- /dev/null
+++ b/test/test_suite7/arrays/global_array_non_const.c3
@@ -0,0 +1,17 @@
+
+const int CONSTANT = 1;
+int[CONSTANT] a2;
+int[3] a3 = { [CONSTANT] = 1 };
+const bool B = true;
+int[B] c2;      // #error: be implicitly converted
+
+int non_constant = 10;
+int[non_constant] b;        // #error: Expected a constant value as
+
+fn int foo()
+{
+    return 10;
+}
+
+int[foo()] c;               // #error: Expected a constant value as
+
diff --git a/test/test_suite7/arrays/global_init.c3t b/test/test_suite7/arrays/global_init.c3t
new file mode 100644
index 000000000..3c84d724c
--- /dev/null
+++ b/test/test_suite7/arrays/global_init.c3t
@@ -0,0 +1,61 @@
+// #target: macos-x64
+module test;
+
+int* foo = &&3;
+
+int a;
+int c;
+int d;
+int[3] abc;
+int *b = (&((&a + 1)[2]) + 1 - 2) + 5;
+int *bf = &abc[2] + 2;
+int *bf2 = &abc[2];
+int *bf3 = &abc[2] + 2;
+
+fn void main() {
+	int *bf34 = (&abc[2] + 2) + 3;
+	static any[3] x = { &&42, &&'c', &&"for" };
+	any[3] y = { &&42, &&'c', &&"for" };
+}
+
+/* #expect: test.ll
+
+@.taddr = private unnamed_addr global i32 3, align 4
+@test.foo = local_unnamed_addr global ptr @.taddr, align 8
+@test.a = global i32 0, align 4
+@test.c = local_unnamed_addr global i32 0, align 4
+@test.d = local_unnamed_addr global i32 0, align 4
+@test.abc = local_unnamed_addr global [3 x i32] zeroinitializer, align 4
+@test.b = local_unnamed_addr global ptr getelementptr (i8, ptr
+@test.bf = local_unnamed_addr global ptr getelementptr (i8, ptr
+@test.bf2 = local_unnamed_addr global ptr getelementptr inbounds (i8, ptr @test.abc, i64 8), align 8
+@test.bf3 = local_unnamed_addr global ptr getelementptr (i8, ptr
+@.taddr.9 = private unnamed_addr global i32 42, align 4
+@.taddr.10 = private unnamed_addr global i8 99, align 1
+@.taddr.11 = private unnamed_addr global %"char[]" { ptr @.str, i64 3 }, align 8
+@main.x = internal unnamed_addr global [3 x %any] [%any { ptr @.taddr.9, i64 ptrtoint (ptr @"$ct.int" to i64) }, %any { ptr @.taddr.10, i64 ptrtoint (ptr @"$ct.char" to i64) }, %any { ptr @.taddr.11, i64 ptrtoint (ptr @"$ct.String" to i64) }], align 16
+
+define void @test.main() #0 {
+entry:
+  %bf34 = alloca ptr, align 8
+  %y = alloca [3 x %any], align 16
+  %taddr = alloca i32, align 4
+  %taddr1 = alloca i8, align 1
+  %taddr3 = alloca %"char[]", align 8
+  store ptr getelementptr (i8, ptr
+  store i32 42, ptr %taddr, align 4
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %y, align 16
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 16
+  store i8 99, ptr %taddr1, align 1
+  %2 = insertvalue %any undef, ptr %taddr1, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %3, ptr %ptradd, align 16
+  %ptradd2 = getelementptr inbounds i8, ptr %y, i64 32
+  store %"char[]" { ptr @.str.12, i64 3 }, ptr %taddr3, align 8
+  %4 = insertvalue %any undef, ptr %taddr3, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %5, ptr %ptradd2, align 16
+  ret void
+}
diff --git a/test/test_suite7/arrays/global_init_array_out_of_range.c3 b/test/test_suite7/arrays/global_init_array_out_of_range.c3
new file mode 100644
index 000000000..7471b4927
--- /dev/null
+++ b/test/test_suite7/arrays/global_init_array_out_of_range.c3
@@ -0,0 +1,2 @@
+int[3] abc;
+int *bf3 = (&abc[4]) + 2; // #error: An index of '4' is out of range, a value between 0 and 2 was expected
\ No newline at end of file
diff --git a/test/test_suite7/arrays/index_from_back.c3t b/test/test_suite7/arrays/index_from_back.c3t
new file mode 100644
index 000000000..8b83536e4
--- /dev/null
+++ b/test/test_suite7/arrays/index_from_back.c3t
@@ -0,0 +1,54 @@
+// #target: macos-x64
+
+module test;
+
+fn void test(int[10] x, int[<10>] y)
+{
+    int a = x[4];
+    int b = x[^2];
+    int c = y[4];
+    int d = y[^2];
+    int j = 3;
+    int e = y[^j];
+    int f = x[^j];
+}
+
+/* #expect: test.ll
+
+; Function Attrs:
+define void @test.test(ptr byval([10 x i32]) align 8 %0, ptr byval(<10 x i32>) align 64 %1) #0 {
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %c = alloca i32, align 4
+  %d = alloca i32, align 4
+  %j = alloca i32, align 4
+  %e = alloca i32, align 4
+  %f = alloca i32, align 4
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 16
+  %2 = load i32, ptr %ptradd, align 4
+  store i32 %2, ptr %a, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 32
+  %3 = load i32, ptr %ptradd1, align 4
+  store i32 %3, ptr %b, align 4
+  %4 = load <10 x i32>, ptr %1, align 64
+  %5 = extractelement <10 x i32> %4, i64 4
+  store i32 %5, ptr %c, align 4
+  %6 = load <10 x i32>, ptr %1, align 64
+  %7 = extractelement <10 x i32> %6, i64 8
+  store i32 %7, ptr %d, align 4
+  store i32 3, ptr %j, align 4
+  %8 = load <10 x i32>, ptr %1, align 64
+  %9 = load i32, ptr %j, align 4
+  %sext = sext i32 %9 to i64
+  %10 = sub nuw i64 10, %sext
+  %11 = extractelement <10 x i32> %8, i64 %10
+  store i32 %11, ptr %e, align 4
+  %12 = load i32, ptr %j, align 4
+  %sext2 = sext i32 %12 to i64
+  %13 = sub nuw i64 10, %sext2
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %0, i64 %13
+  %14 = load i32, ptr %ptroffset, align 4
+  store i32 %14, ptr %f, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/arrays/index_into_global.c3t b/test/test_suite7/arrays/index_into_global.c3t
new file mode 100644
index 000000000..13ef5c884
--- /dev/null
+++ b/test/test_suite7/arrays/index_into_global.c3t
@@ -0,0 +1,32 @@
+// #target: macos-x64
+
+module foo;
+
+struct Bar {
+  int a;
+}
+
+Bar[6] bar;
+
+fn int main()
+{
+    test_bar(0);
+    return 0;
+}
+
+fn void test_bar(int idx)
+{
+    bar[idx].a = 0;
+    bar[0].a = idx;
+}
+
+/* #expect: foo.ll
+
+define void @foo.test_bar(i32 %0) #0 {
+entry:
+  %sext = sext i32 %0 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr @foo.bar, i64 %sext
+  store i32 0, ptr %ptroffset, align 4
+  store i32 %0, ptr @foo.bar, align 4
+  ret void
+}
diff --git a/test/test_suite7/arrays/inferred_array_err.c3 b/test/test_suite7/arrays/inferred_array_err.c3
new file mode 100644
index 000000000..6562be53d
--- /dev/null
+++ b/test/test_suite7/arrays/inferred_array_err.c3
@@ -0,0 +1,7 @@
+fn int[?] hello() // #error: Inferred array types can only be used in declarations with initializers
+{
+    return int[3] { 1, 2, 3};
+}
+
+int[?] c; // #error: Inferred array types can only be used in declarations with initializers
+
diff --git a/test/test_suite7/arrays/inferred_array_err2.c3 b/test/test_suite7/arrays/inferred_array_err2.c3
new file mode 100644
index 000000000..d85269e4d
--- /dev/null
+++ b/test/test_suite7/arrays/inferred_array_err2.c3
@@ -0,0 +1,5 @@
+fn void test()
+{
+    int[3] z;
+    (int[?])(z);
+}
\ No newline at end of file
diff --git a/test/test_suite7/arrays/inferred_array_optional.c3t b/test/test_suite7/arrays/inferred_array_optional.c3t
new file mode 100644
index 000000000..0ad8a5f62
--- /dev/null
+++ b/test/test_suite7/arrays/inferred_array_optional.c3t
@@ -0,0 +1,91 @@
+// #target: macos-x64
+module test;
+
+fn int! foo() => 1;
+
+fn int main()
+{
+	int[?]! x = { 1, 2 };
+	int[?]! y = { foo(), foo() };
+	int[<?>]! x2 = { 1, 2 };
+	int[<?>]! y2 = { foo(), foo() };
+	return 1;
+}
+
+/* #expect: test.ll
+
+
+define i32 @main() #0 {
+entry:
+  %x = alloca [2 x i32], align 4
+  %x.f = alloca i64, align 8
+  %y = alloca [2 x i32], align 4
+  %y.f = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %retparam1 = alloca i32, align 4
+  %x2 = alloca <2 x i32>, align 8
+  %x2.f = alloca i64, align 8
+  %y2 = alloca <2 x i32>, align 8
+  %y2.f = alloca i64, align 8
+  %retparam5 = alloca i32, align 4
+  %retparam9 = alloca i32, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 8, i1 false)
+  store i64 0, ptr %x.f, align 8
+  %0 = call i64 @test.foo(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %0, ptr %y.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %entry
+  %2 = load i32, ptr %retparam, align 4
+  store i32 %2, ptr %y, align 4
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 4
+  %3 = call i64 @test.foo(ptr %retparam1)
+  %not_err2 = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %4, label %after_check4, label %assign_optional3
+
+assign_optional3:                                 ; preds = %after_check
+  store i64 %3, ptr %y.f, align 8
+  br label %after_assign
+
+after_check4:                                     ; preds = %after_check
+  %5 = load i32, ptr %retparam1, align 4
+  store i32 %5, ptr %ptradd, align 4
+  store i64 0, ptr %y.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check4, %assign_optional3, %assign_optional
+  store <2 x i32> <i32 1, i32 2>, ptr %x2, align 8
+  store i64 0, ptr %x2.f, align 8
+  %6 = call i64 @test.foo(ptr %retparam5)
+  %not_err6 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err6, i1 true)
+  br i1 %7, label %after_check8, label %assign_optional7
+
+assign_optional7:                                 ; preds = %after_assign
+  store i64 %6, ptr %y2.f, align 8
+  br label %after_assign13
+
+after_check8:                                     ; preds = %after_assign
+  %8 = load i32, ptr %retparam5, align 4
+  %9 = insertelement <2 x i32> undef, i32 %8, i64 0
+  %10 = call i64 @test.foo(ptr %retparam9)
+  %not_err10 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %11, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %after_check8
+  store i64 %10, ptr %y2.f, align 8
+  br label %after_assign13
+
+after_check12:                                    ; preds = %after_check8
+  %12 = load i32, ptr %retparam9, align 4
+  %13 = insertelement <2 x i32> %9, i32 %12, i64 1
+  store <2 x i32> %13, ptr %y2, align 8
+  store i64 0, ptr %y2.f, align 8
+  br label %after_assign13
diff --git a/test/test_suite7/arrays/inferred_subarray.c3 b/test/test_suite7/arrays/inferred_subarray.c3
new file mode 100644
index 000000000..c8258fa30
--- /dev/null
+++ b/test/test_suite7/arrays/inferred_subarray.c3
@@ -0,0 +1,5 @@
+fn void main()
+{
+	int[?][?][] x = (int[2][1][]) { { { 1, 2 } } };
+	int[?][?][?] y = (int[2][1][]) { { { 1, 2 } } };
+}
diff --git a/test/test_suite7/arrays/negative_array.c3 b/test/test_suite7/arrays/negative_array.c3
new file mode 100644
index 000000000..15e33a942
--- /dev/null
+++ b/test/test_suite7/arrays/negative_array.c3
@@ -0,0 +1,5 @@
+
+int[-1] a;      // #error: An array may not have a negative
+int[10-20] b;   // #error: An array may not have a negative
+int[<-1>] c; // #error: A vector may not have a negative width
+int[<10-20>] d; // #error: A vector may not have a negative width
diff --git a/test/test_suite7/arrays/slice.c3 b/test/test_suite7/arrays/slice.c3
new file mode 100644
index 000000000..6d12e07c3
--- /dev/null
+++ b/test/test_suite7/arrays/slice.c3
@@ -0,0 +1,7 @@
+fn void test()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = &x;
+    z[1];
+//    z.size();
+}
\ No newline at end of file
diff --git a/test/test_suite7/arrays/slice_array.c3 b/test/test_suite7/arrays/slice_array.c3
new file mode 100644
index 000000000..ac5ddd612
--- /dev/null
+++ b/test/test_suite7/arrays/slice_array.c3
@@ -0,0 +1,6 @@
+distinct Bar = inline void;
+
+struct Foo
+{
+    Bar[] bars; // #error: You cannot form a slice with elements
+}
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_bit_rv.c3t b/test/test_suite7/asm/asm_bit_rv.c3t
new file mode 100644
index 000000000..56ba45552
--- /dev/null
+++ b/test/test_suite7/asm/asm_bit_rv.c3t
@@ -0,0 +1,20 @@
+// #target: elf-riscv32
+module test;
+
+fn void main(String[] args)
+{
+	asm
+	{
+		and $t0, $t1, $t2;
+		or $a0, $a1, $a2;
+		xor $s7, $s6, $s5;
+		andi $s1, $s2, -2048;
+		ori $s3, $s4, 2047;
+		xori $t3, $t4, 1;
+		not $t3, $t4;
+	}
+}
+
+/* #expect: test.ll
+
+"and t0, t1, t2\0Aor a0, a1, a2\0Axor s7, s6, s5\0Aandi s1, s2, -2048\0Aori s3, s4, 2047\0Axori t3, t4, 1\0Anot t3, t4\0A", "~{x5},~{x9},~{x10},~{x19},~{x23},~{x28}"()
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_imm_err_rv.c3 b/test/test_suite7/asm/asm_imm_err_rv.c3
new file mode 100644
index 000000000..78728d56d
--- /dev/null
+++ b/test/test_suite7/asm/asm_imm_err_rv.c3
@@ -0,0 +1,58 @@
+// #target: elf-riscv32
+module test;
+
+fn void test1()
+{
+	asm
+	{
+		andi $s1, $s2, -2049; // #error: 'andi' expected 'short' limited to 12 bits.
+	}
+}
+
+fn void test2()
+{
+	asm
+	{
+		ori $t0, $t1, 2048; // #error: 'ori' expected 'short' limited to 12 bits.
+	}
+}
+
+fn void test3()
+{
+	asm
+	{
+		slli $a0, $a1, 32u; // #error: 'slli' expected 'char' limited to 5 bits.
+	}
+}
+
+fn void test4()
+{
+	asm
+	{
+		lui $a0, 0xFFFFFF; // #error: 'lui' expected 'uint' limited to 20 bits.
+	}
+}
+
+fn void test5()
+{
+	asm
+	{
+		lui $a0, -1; // #error: 'lui' expected 'uint' limited to 20 bits.
+	}
+}
+
+fn void test6()
+{
+	asm
+	{
+		auipc $a0, -1; // #error: 'auipc' expected 'uint' limited to 20 bits.
+	}
+}
+
+fn void test7()
+{
+	asm
+	{
+		slli $a0, 1, 31u; // #error: 'slli' does not support a direct integer constant here.
+	}
+}
diff --git a/test/test_suite7/asm/asm_intr_rv.c3t b/test/test_suite7/asm/asm_intr_rv.c3t
new file mode 100644
index 000000000..0f4928505
--- /dev/null
+++ b/test/test_suite7/asm/asm_intr_rv.c3t
@@ -0,0 +1,21 @@
+// #target: elf-riscv32
+module test;
+
+fn void main(String[] args)
+{
+	int x = 0;
+	void* fp;
+	asm
+	{
+		csrw $mstatus, $a0;
+		csrrsi $zero, $mstatus, 8u;
+		csrrci $zero, $mstatus, 31u;
+		csrrw  $zero, $mtvec, fp;
+		mret;
+		wfi;
+	}
+}
+
+/* #expect: test.ll
+
+"csrw mstatus, a0\0Acsrrsi zero, mstatus, 8\0Acsrrci zero, mstatus, 31\0Acsrrw zero, mtvec, $0\0Amret \0Awfi \0A", "r,~{x0},~{mstatus},~{mtvec}"(ptr %1)
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_jump_rv.c3t b/test/test_suite7/asm/asm_jump_rv.c3t
new file mode 100644
index 000000000..ed0539fd5
--- /dev/null
+++ b/test/test_suite7/asm/asm_jump_rv.c3t
@@ -0,0 +1,30 @@
+// #target: elf-riscv32
+module test;
+
+def Sum = fn int(int a, int b);
+
+fn int sum(int a, int b)
+{
+	return a + b;
+}
+
+fn void main(String[] args)
+{
+	int a = 1;
+	int b = 2;
+	int result = 0;
+	Sum sum_ptr = &sum;
+
+	asm
+	{
+		mv $a0, a;
+		mv $a1, b;
+		jalr $ra, sum_ptr, 0;
+		mv result, $a0;
+	}
+}
+
+
+/* #expect: test.ll
+
+"mv a0, $1\0Amv a1, $2\0Ajalr ra, $3, 0\0Amv $0, a0\0A", "=r,r,r,r,~{x1},~{x10},~{x11}"(i32 %1, i32 %2, ptr %3)
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_load_rv.c3t b/test/test_suite7/asm/asm_load_rv.c3t
new file mode 100644
index 000000000..18aad2202
--- /dev/null
+++ b/test/test_suite7/asm/asm_load_rv.c3t
@@ -0,0 +1,21 @@
+// #target: elf-riscv32
+module test;
+
+fn void main(String[] args)
+{
+	int x = 2;
+	asm
+	{
+		li $s1, -2147483648;
+		lui $t0, 123456u;
+		auipc $x15, 123456u;
+		auipc $a0, 1;
+		mv $a0, $a1;
+		lw $a4, [&x];
+		lb $a5, [$a7 - 4];
+	}
+}
+
+/* #expect: test.ll
+
+"li s1, -2147483648\0Alui t0, 123456\0Aauipc x15, 123456\0Aauipc a0, 1\0Amv a0, a1\0Alw a4, $0\0Alb a5, -4(a7)\0A", "*m,~{x5},~{x9},~{x10},~{x14},~{x15}"(ptr elementtype(i32) %x)
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_load_rv64.c3t b/test/test_suite7/asm/asm_load_rv64.c3t
new file mode 100644
index 000000000..27dcd217f
--- /dev/null
+++ b/test/test_suite7/asm/asm_load_rv64.c3t
@@ -0,0 +1,15 @@
+// #target: elf-riscv64
+module test;
+
+fn void main(String[] args)
+{
+	int x = 2;
+	asm
+	{
+		li $s1, -9223372036854775808;
+	}
+}
+
+/* #expect: test.ll
+
+"li s1, -9223372036854775808\0A", "~{x9}"()
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_math_rv.c3t b/test/test_suite7/asm/asm_math_rv.c3t
new file mode 100644
index 000000000..ac6da66e1
--- /dev/null
+++ b/test/test_suite7/asm/asm_math_rv.c3t
@@ -0,0 +1,19 @@
+// #target: elf-riscv32
+module test;
+
+fn void main(String[] args)
+{
+	int x = 0;
+	asm
+	{
+		add $t0, $t1, $t2;
+		add x, $t1, $t2;
+		sub $a0, $a1, $a2;
+		addi $s1, $s2, -2048;
+		neg $t3, $t4;
+	}
+}
+
+/* #expect: test.ll
+
+"add t0, t1, t2\0Aadd $0, t1, t2\0Asub a0, a1, a2\0Aaddi s1, s2, -2048\0Aneg t3, t4\0A", "=r,~{x5},~{x9},~{x10},~{x28}"()
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_ops_x64_1.c3t b/test/test_suite7/asm/asm_ops_x64_1.c3t
new file mode 100644
index 000000000..2e094bdf2
--- /dev/null
+++ b/test/test_suite7/asm/asm_ops_x64_1.c3t
@@ -0,0 +1,44 @@
+// #target: macos-x64
+module test;
+
+fn void main(String[] args)
+{
+	int x;
+	if (args.len < 10) return;
+	asm
+	{
+		in $eax, 3;
+		in $ax, $dx;
+		incb $al;
+		incw $bx;
+		incl $eax;
+		incq $rax;
+		incl [&x];
+		insb;
+		insw;
+		insl;
+		int 0x08;
+		int3;
+		// int1; Broken in LLVM
+		invd;
+		invlpg [&x];
+		invpcid $rax, [&x];
+		invlpga $ecx, $rax;
+		iret;
+		iretl;
+		iretw;
+		iretq;
+		push 1;
+		pushw 2;
+		pushw $ax;
+		pushw [&x];
+		pushq $rax;
+		pushq [&x];
+		popw $ax;
+		popq $rax;
+	}
+}
+
+/* #expect: test.ll
+
+"in $$3, %eax\0Ain %dx, %ax\0Aincb %al\0Aincw %bx\0Aincl %eax\0Aincq %rax\0Aincl $0\0Ainsb \0Ainsw \0Ainsl \0Aint $$8\0Aint3 \0Ainvd \0Ainvlpg $0\0Ainvpcid $1, %rax\0Ainvlpga %rax, %ecx\0Airet \0Airetl \0Airetw \0Airetq \0Apush $$1\0Apushw $$2\0Apushw %ax\0Apushw $1\0Apushq %rax\0Apushq $1\0Apopw %ax\0Apopq %rax\0A", "=*&m,*m,~{cc},~{rax},~{rbx},~{flags},~{dirflag},~{fspr}"
diff --git a/test/test_suite7/asm/asm_ops_x64_2.c3t b/test/test_suite7/asm/asm_ops_x64_2.c3t
new file mode 100644
index 000000000..4090068d8
--- /dev/null
+++ b/test/test_suite7/asm/asm_ops_x64_2.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module test;
+
+fn void main(String[] args)
+{
+	int foo;
+	asm
+	{
+		adcxl $eax, $ecx;
+		adcxq $rax, $rcx;
+		addpd $xmm1, $xmm2;
+		addps $xmm1, $xmm2;
+		addsd $xmm1, $xmm2;
+		addss $xmm1, $xmm2;
+		vaddpd $xmm1, $xmm2, $xmm3;
+		vaddpd $ymm1, $ymm2, $ymm3;
+		vaddpd $xmm1, $xmm2, [&foo];
+		vaddps $xmm1, $xmm2, $xmm3;
+		vaddps $ymm1, $ymm2, $ymm3;
+		vaddps $xmm1, $xmm2, [&foo];
+		vaddsd $xmm1, $xmm2, $xmm3;
+		vaddsd $xmm1, $xmm2, [&foo];
+		vaddss $xmm1, $xmm2, $xmm3;
+		vaddss $xmm1, $xmm2, [&foo];
+	}
+}
+
+/* #expect: test.ll
+
+"adcxl %ecx, %eax\0Aadcxq %rcx, %rax\0Aaddpd %xmm2, %xmm1\0Aaddps %xmm2, %xmm1\0Aaddsd %xmm2, %xmm1\0Aaddss %xmm2, %xmm1\0Avaddpd %xmm3, %xmm2, %xmm1\0Avaddpd %ymm3, %ymm2, %ymm1\0Avaddpd $0, %xmm2, %xmm1\0Avaddps %xmm3, %xmm2, %xmm1\0Avaddps %ymm3, %ymm2, %ymm1\0Avaddps $0, %xmm2, %xmm1\0Avaddsd %xmm3, %xmm2, %xmm1\0Avaddsd $0, %xmm2, %xmm1\0Avaddss %xmm3, %xmm2, %xmm1\0Avaddss $0, %xmm2, %xmm1\0A", "*m,~{cc},~{rcx},~{xmm1},~{flags},~{dirflag},~{fspr}"
diff --git a/test/test_suite7/asm/asm_regression.c3t b/test/test_suite7/asm/asm_regression.c3t
new file mode 100644
index 000000000..924d4b615
--- /dev/null
+++ b/test/test_suite7/asm/asm_regression.c3t
@@ -0,0 +1,50 @@
+// #target: macos-x64
+
+module test;
+import std::io;
+fn void main()
+{
+	int x = 222;
+	int y = 223;
+	long z = 0;
+	z = (long)x + y;
+	z *= x;
+	int g = 0;
+	int* gp = &g;
+	int[4] a = { 3, 4, 5, 6 };
+	int* xa = &a;
+	usz asf = 1;
+	int aa = 3;
+	asm
+	{
+
+	  movl x, 4;
+	  movl [gp], x;
+	  movl x, 1;
+	  movl [xa + asf * 4 + 4], x;
+	  movl $eax, (23 + x);
+	  movl x, $eax;
+	  movq [&z], 33;
+	  addl aa, 22;
+	}
+	io::printfn("aa: %d", aa);
+	io::printfn("Z: %d", z);
+	io::printfn("x: %d", x);
+	io::printfn("G was: %d", g);
+	foreach(int abc : a) io::printfn("%d", abc);
+
+}
+
+/* #expect: test.ll
+
+  %4 = load ptr, ptr %gp, align 8
+  %5 = load ptr, ptr %xa, align 8
+  %6 = load i64, ptr %asf, align 8
+  %7 = load i32, ptr %x, align 4
+  %add3 = add i32 23, %7
+  %8 = load i32, ptr %aa, align 4
+  %9 = call { i32, i32 } asm sideeffect alignstack "movl $$4, $0\0Amovl $0, ($3)\0Amovl $$1, $0\0Amovl $0, 4($4,$5,4)\0Amovl $6, %eax\0Amovl %eax, $0\0Amovq $$33, $1\0Aaddl $$22, $2\0A", "=&r,=*&m,=r,r,r,r,r,2,~{cc},~{rax},~{flags},~{dirflag},~{fspr}"(ptr elementtype(i64) %z, ptr %4, ptr %5, i64 %6, i32 %add3, i32 %8)
+  %10 = extractvalue { i32, i32 } %9, 0
+  store i32 %10, ptr %x, align 4
+  %11 = extractvalue { i32, i32 } %9, 1
+  store i32 %11, ptr %aa, align 4
diff --git a/test/test_suite7/asm/asm_set_rv.c3t b/test/test_suite7/asm/asm_set_rv.c3t
new file mode 100644
index 000000000..89295b1e2
--- /dev/null
+++ b/test/test_suite7/asm/asm_set_rv.c3t
@@ -0,0 +1,18 @@
+// #target: elf-riscv32
+module test;
+
+fn void main(String[] args)
+{
+	int x = 2;
+	asm
+	{
+		slt $t0, $t1, x;
+		slti $a0, $a1, -2048;
+		sltiu $a0, $a1, 4095u;
+		seqz $s0, $zero;
+	}
+}
+
+/* #expect: test.ll
+
+"slt t0, t1, $0\0Aslti a0, a1, -2048\0Asltiu a0, a1, 4095\0Aseqz s0, zero\0A", "r,~{x5},~{x8},~{x10}"(i32 %1)
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_shift_rv.c3t b/test/test_suite7/asm/asm_shift_rv.c3t
new file mode 100644
index 000000000..21253b356
--- /dev/null
+++ b/test/test_suite7/asm/asm_shift_rv.c3t
@@ -0,0 +1,19 @@
+// #target: elf-riscv32
+module test;
+
+fn void main(String[] args)
+{
+	asm
+	{
+		sll $t0, $t1, $t2;
+		slli $s1, $s2, 31u;
+		srl $a0, $a1, $a2;
+		srli $x10, $x11, 0u;
+		sra $t0, $t1, $t2;
+		srai $s1, $s2, 1u;
+	}
+}
+
+/* #expect: test.ll
+
+"sll t0, t1, t2\0Aslli s1, s2, 31\0Asrl a0, a1, a2\0Asrli x10, x11, 0\0Asra t0, t1, t2\0Asrai s1, s2, 1\0A", "~{x5},~{x9},~{x10}"()
\ No newline at end of file
diff --git a/test/test_suite7/asm/asm_store_rv.c3t b/test/test_suite7/asm/asm_store_rv.c3t
new file mode 100644
index 000000000..abff59560
--- /dev/null
+++ b/test/test_suite7/asm/asm_store_rv.c3t
@@ -0,0 +1,17 @@
+// #target: elf-riscv32
+module test;
+
+fn void main(String[] args)
+{
+	int x = 2;
+	int y = 0;
+	asm
+	{
+		lw $a4, [&x];
+		sw $a4, [&y];
+	}
+}
+
+/* #expect: test.ll
+
+"lw a4, $1\0Asw a4, $0\0A", "=*m,*m,~{x14}"(ptr elementtype(i32) %y, ptr elementtype(i32) %x)
\ No newline at end of file
diff --git a/test/test_suite7/asm/naked.c3t b/test/test_suite7/asm/naked.c3t
new file mode 100644
index 000000000..a820f7f17
--- /dev/null
+++ b/test/test_suite7/asm/naked.c3t
@@ -0,0 +1,19 @@
+// #target: macos-x64
+module testing;
+
+fn void start() @export("_start") @naked @nostrip {
+        asm {
+                movq $rax, 0x3c;
+                movq $rdi, 42;
+                syscall;
+        }
+}
+
+/* #expect: testing.ll
+
+define void @_start() #0 {
+entry:
+  call void asm sideeffect alignstack "movq $$60, %rax\0Amovq $$42, %rdi\0Asyscall \0A", "~{cc},~{rax},~{rcx},~{r8},~{r11},~{flags},~{dirflag},~{fspr}"()
+  ret void
+}
+
diff --git a/test/test_suite7/asm/sideeffect.c3t b/test/test_suite7/asm/sideeffect.c3t
new file mode 100644
index 000000000..3613ba606
--- /dev/null
+++ b/test/test_suite7/asm/sideeffect.c3t
@@ -0,0 +1,21 @@
+// #target: macos-x64
+module test;
+
+fn void test()
+{
+	asm { nop; }
+	asm @pure { nop; }
+	asm("nop");
+	asm("nop") @pure;
+}
+
+/* #expect: test.ll
+
+define void @test.test() #0 {
+entry:
+  call void asm sideeffect alignstack "nop \0A", "~{flags},~{dirflag},~{fspr}"()
+  call void asm alignstack "nop \0A", "~{flags},~{dirflag},~{fspr}"()
+  call void asm sideeffect alignstack "nop", "~{dirflag},~{fpsr},~{flags}"()
+  call void asm alignstack "nop", "~{dirflag},~{fpsr},~{flags}"()
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/asm/syscall.c3t b/test/test_suite7/asm/syscall.c3t
new file mode 100644
index 000000000..bc2cabd9e
--- /dev/null
+++ b/test/test_suite7/asm/syscall.c3t
@@ -0,0 +1,17 @@
+// #target: macos-x64
+module testing;
+
+fn void start() @export("_start") @naked @nostrip {
+        asm {
+                syscall;
+        }
+}
+
+/* #expect: testing.ll
+
+define void @_start() #0 {
+entry:
+  call void asm sideeffect alignstack "syscall \0A", "~{cc},~{rax},~{rcx},~{r11},~{flags},~{dirflag},~{fspr}"()
+  ret void
+}
+
diff --git a/test/test_suite7/assert/assert_variants.c3t b/test/test_suite7/assert/assert_variants.c3t
new file mode 100644
index 000000000..52b0288c5
--- /dev/null
+++ b/test/test_suite7/assert/assert_variants.c3t
@@ -0,0 +1,62 @@
+// #target: windows-x64
+
+fn int foo()
+{
+    return 1;
+}
+
+fn void test()
+{
+    int x = foo();
+    int y = foo();
+    int z = foo();
+    assert(x > 0);
+    assert(y > 0 && z > 0);
+    assert(x > 0 && y > 0 && z > 0);
+    assert(foo() > 0);
+    assert(x > 0 && foo() > 0);
+    assert(!(x < 1 || y < 1), "Foo");
+}
+
+
+/* #expect: assert_variants.ll
+
+ %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %z = alloca i32, align 4
+  %0 = call i32 @assert_variants.foo()
+  store i32 %0, ptr %x, align 4
+  %1 = call i32 @assert_variants.foo()
+  store i32 %1, ptr %y, align 4
+  %2 = call i32 @assert_variants.foo()
+  store i32 %2, ptr %z, align 4
+  %3 = load i32, ptr %x, align 4
+  %gt = icmp sgt i32 %3, 0
+  call void @llvm.assume(i1 %gt)
+  %4 = load i32, ptr %y, align 4
+  %gt1 = icmp sgt i32 %4, 0
+  call void @llvm.assume(i1 %gt1)
+  %5 = load i32, ptr %z, align 4
+  %gt2 = icmp sgt i32 %5, 0
+  call void @llvm.assume(i1 %gt2)
+  %6 = load i32, ptr %x, align 4
+  %gt3 = icmp sgt i32 %6, 0
+  call void @llvm.assume(i1 %gt3)
+  %7 = load i32, ptr %y, align 4
+  %gt4 = icmp sgt i32 %7, 0
+  call void @llvm.assume(i1 %gt4)
+  %8 = load i32, ptr %z, align 4
+  %gt5 = icmp sgt i32 %8, 0
+  call void @llvm.assume(i1 %gt5)
+  %9 = load i32, ptr %x, align 4
+  %gt6 = icmp sgt i32 %9, 0
+  call void @llvm.assume(i1 %gt6)
+  %10 = load i32, ptr %x, align 4
+  %lt = icmp slt i32 %10, 1
+  %not = xor i1 %lt, true
+  call void @llvm.assume(i1 %not)
+  %11 = load i32, ptr %y, align 4
+  %lt7 = icmp slt i32 %11, 1
+  %not8 = xor i1 %lt7, true
+  call void @llvm.assume(i1 %not8)
+  ret void
\ No newline at end of file
diff --git a/test/test_suite7/assert/assert_with_void.c3 b/test/test_suite7/assert/assert_with_void.c3
new file mode 100644
index 000000000..1725e0bd2
--- /dev/null
+++ b/test/test_suite7/assert/assert_with_void.c3
@@ -0,0 +1,42 @@
+module testing;
+import std::io;
+
+fn void main()
+{
+    String[] s1;
+    String[] s2;
+    assert(false, "%s / %s", deep_print(s1), deep_print(s2)); // #error: This expression is of type
+}
+
+macro deep_print(a)
+{
+    var $Type = $typeof(a);
+    $switch ($Type.kindof)
+        $case ARRAY:
+        $case SLICE:
+            io::print("[");
+            foreach (i, x : a)
+            {
+                if (i > 0) io::print(", ");
+                deep_print(x);
+            }
+            io::print("]");
+        $case STRUCT:
+            io::print("{");
+            $foreach ($i, $m : $typeof(a).membersof)
+                if ($i > 0) io::print(", ");
+                deep_print($m.get(a));
+            $endforeach
+            io::print("}");
+        $default:
+            $switch ($Type.nameof)
+                $case "String":
+                $case "DString":
+                $case "WString":
+                $case "ZString":
+                    io::printf(`"%s"`, a);
+                $default:
+                    io::printf("%s", a);
+            $endswitch
+    $endswitch
+}
\ No newline at end of file
diff --git a/test/test_suite7/assert/assertf.c3t b/test/test_suite7/assert/assertf.c3t
new file mode 100644
index 000000000..4920c5979
--- /dev/null
+++ b/test/test_suite7/assert/assertf.c3t
@@ -0,0 +1,51 @@
+// #target: macos-x64
+// #safe: yes
+module main;
+
+fn void main()
+{
+	for (usz i = 0; i < 100000000; i++)
+	{
+		assert(i != 2, "Test %s %s", i, i * 2);
+	}
+}
+
+/* #expect: main.ll
+
+  %i = alloca i64, align 8
+  %taddr = alloca i64, align 8
+  %varargslots = alloca [2 x %any], align 16
+  %indirectarg = alloca %"any[]", align 8
+  store i64 0, ptr %i, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %assert_ok, %entry
+  %0 = load i64, ptr %i, align 8
+  %gt = icmp ugt i64 100000000, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %i, align 8
+  %neq = icmp ne i64 2, %1
+  br i1 %neq, label %assert_ok, label %assert_fail
+assert_fail:                                      ; preds = %loop.body
+  %2 = insertvalue %any undef, ptr %i, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %4 = load i64, ptr %i, align 8
+  %mul = mul i64 %4, 2
+  store i64 %mul, ptr %taddr, align 8
+  %5 = insertvalue %any undef, ptr %taddr, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %3, ptr %varargslots, align 16
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %6, ptr %ptradd, align 16
+  %7 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %7, i64 2, 1
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 10, ptr @.file, i64 10, ptr @.func, i64 4, i32 7, ptr byval(%"any[]") align 8 %indirectarg)
+  unreachable
+assert_ok:                                        ; preds = %loop.body
+  %8 = load i64, ptr %i, align 8
+  %add = add i64 %8, 1
+  store i64 %add, ptr %i, align 8
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+
diff --git a/test/test_suite7/assert/global_static_assert_not_constant.c3 b/test/test_suite7/assert/global_static_assert_not_constant.c3
new file mode 100644
index 000000000..a26c52b89
--- /dev/null
+++ b/test/test_suite7/assert/global_static_assert_not_constant.c3
@@ -0,0 +1,3 @@
+int x = 3;
+
+$assert x == 3; // #error: Compile time evaluation requires a compile time constant value.
\ No newline at end of file
diff --git a/test/test_suite7/assert/local_static_assert_not_constant.c3 b/test/test_suite7/assert/local_static_assert_not_constant.c3
new file mode 100644
index 000000000..c40f7826d
--- /dev/null
+++ b/test/test_suite7/assert/local_static_assert_not_constant.c3
@@ -0,0 +1,20 @@
+int x = 3;
+
+fn void test()
+{
+    $assert x == 3; // #error: Compile time evaluation requires a compile time constant value.
+}
+
+fn void test2()
+{
+    int i = 0;
+    $assert 1;
+    $assert i == 0; // #error: Compile time evaluation requires a compile time constant value.
+}
+
+extern fn int foo();
+fn void test3()
+{
+    int i = 0;
+    $assert foo() == 0; // #error: Compile time evaluation requires a compile time constant value.
+}
diff --git a/test/test_suite7/assert/static_assert.c3 b/test/test_suite7/assert/static_assert.c3
new file mode 100644
index 000000000..75a060f06
--- /dev/null
+++ b/test/test_suite7/assert/static_assert.c3
@@ -0,0 +1,8 @@
+
+const int FOO = 2;
+
+fn void test()
+{
+    $assert FOO == 2 : "Bad";
+    $assert FOO == 0 : "Good"; // #error: Good
+}
\ No newline at end of file
diff --git a/test/test_suite7/assert/unreachable.c3t b/test/test_suite7/assert/unreachable.c3t
new file mode 100644
index 000000000..c93c7d572
--- /dev/null
+++ b/test/test_suite7/assert/unreachable.c3t
@@ -0,0 +1,31 @@
+// #target: macos-x64
+fn int foo()
+{
+    return 1;
+}
+
+fn void test()
+{
+    int x = foo();
+    if (x > 0) return;
+    unreachable();
+}
+
+
+/* #expect: unreachable.ll
+
+define void @unreachable.test() #0 {
+entry:
+  %x = alloca i32, align 4
+  %0 = call i32 @unreachable.foo()
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %gt = icmp sgt i32 %1, 0
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret void
+
+if.exit:                                          ; preds = %entry
+  unreachable
+}
\ No newline at end of file
diff --git a/test/test_suite7/assert/unreachable_in_macro.c3t b/test/test_suite7/assert/unreachable_in_macro.c3t
new file mode 100644
index 000000000..d4025c7bf
--- /dev/null
+++ b/test/test_suite7/assert/unreachable_in_macro.c3t
@@ -0,0 +1,99 @@
+// #target: windows-x64
+module test;
+import std;
+fn int main()
+{
+  if (catch test())
+  {
+	  io::printn("Hello");
+  }
+  (void)test();
+  return 0;
+}
+
+fault Bob
+{
+	ABC
+}
+
+macro test()
+{
+  if (false) return;
+  return Bob.ABC?;
+  unreachable();
+}
+
+/* #expect: test.ll
+
+define i32 @main() #0 {
+entry:
+  %temp_err = alloca i64, align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %indirectarg = alloca %"char[]", align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  br label %testblock
+testblock:                                        ; preds = %entry
+  br label %if.exit
+if.exit:                                          ; preds = %testblock
+  store i64 ptrtoint (ptr @"test.Bob$ABC" to i64), ptr %temp_err, align 8
+  br label %end_block
+end_block:                                        ; preds = %if.exit
+  %0 = load i64, ptr %temp_err, align 8
+  %i2b = icmp ne i64 %0, 0
+  br i1 %i2b, label %if.then, label %if.exit14
+if.then:                                          ; preds = %end_block
+  %1 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str, i64 5 }, ptr %indirectarg, align 8
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr align 8 %indirectarg)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %if.then
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %if.then
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  br label %if.exit14
+if.exit14:                                        ; preds = %voiderr, %end_block
+  br label %if.exit15
+if.exit15:                                        ; preds = %if.exit14
+  br label %after_macro
+after_macro:                                      ; preds = %if.exit15
+  ret i32 0
+}
diff --git a/test/test_suite7/assignment/alignment_index.c3t b/test/test_suite7/assignment/alignment_index.c3t
new file mode 100644
index 000000000..5674c7b96
--- /dev/null
+++ b/test/test_suite7/assignment/alignment_index.c3t
@@ -0,0 +1,24 @@
+// #target: windows-x64
+module test;
+int[<2>] foo @align(1);
+
+fn void main()
+{
+	foo[1] = 2;
+	foo.y = 4;
+}
+
+/* #expect: test.ll
+
+@test.foo = local_unnamed_addr global <2 x i32> zeroinitializer, align 1
+
+define void @test.main() #0 {
+entry:
+  %0 = load <2 x i32>, ptr @test.foo, align 1
+  %elemset = insertelement <2 x i32> %0, i32 2, i64 1
+  store <2 x i32> %elemset, ptr @test.foo, align 1
+  %1 = load <2 x i32>, ptr @test.foo, align 1
+  %elemset1 = insertelement <2 x i32> %1, i32 4, i64 1
+  store <2 x i32> %elemset1, ptr @test.foo, align 1
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/assignment/int_assign.c3t b/test/test_suite7/assignment/int_assign.c3t
new file mode 100644
index 000000000..a905dece6
--- /dev/null
+++ b/test/test_suite7/assignment/int_assign.c3t
@@ -0,0 +1,70 @@
+// #target: windows-x64
+module test;
+
+fn int foo()
+{
+    int x = 0;
+    int y;
+    x += y;
+    x -= y;
+    x %= y;
+    x /= y;
+    x *= y;
+    x <<= y;
+    x >>= y;
+    x ^= y;
+    x |= y;
+    x &= y;
+    return x;
+}
+
+
+/* #expect: test.ll
+
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  store i32 0, ptr %y, align 4
+  %0 = load i32, ptr %x, align 4
+  %1 = load i32, ptr %y, align 4
+  %add = add i32 %0, %1
+  store i32 %add, ptr %x, align 4
+  %2 = load i32, ptr %x, align 4
+  %3 = load i32, ptr %y, align 4
+  %sub = sub i32 %2, %3
+  store i32 %sub, ptr %x, align 4
+  %4 = load i32, ptr %x, align 4
+  %5 = load i32, ptr %y, align 4
+  %smod = srem i32 %4, %5
+  store i32 %smod, ptr %x, align 4
+  %6 = load i32, ptr %x, align 4
+  %7 = load i32, ptr %y, align 4
+  %sdiv = sdiv i32 %6, %7
+  store i32 %sdiv, ptr %x, align 4
+  %8 = load i32, ptr %x, align 4
+  %9 = load i32, ptr %y, align 4
+  %mul = mul i32 %8, %9
+  store i32 %mul, ptr %x, align 4
+  %10 = load i32, ptr %x, align 4
+  %11 = load i32, ptr %y, align 4
+  %shl = shl i32 %10, %11
+  %12 = freeze i32 %shl
+  store i32 %12, ptr %x, align 4
+  %13 = load i32, ptr %x, align 4
+  %14 = load i32, ptr %y, align 4
+  %ashr = ashr i32 %13, %14
+  %15 = freeze i32 %ashr
+  store i32 %15, ptr %x, align 4
+  %16 = load i32, ptr %x, align 4
+  %17 = load i32, ptr %y, align 4
+  %xor = xor i32 %16, %17
+  store i32 %xor, ptr %x, align 4
+  %18 = load i32, ptr %x, align 4
+  %19 = load i32, ptr %y, align 4
+  %or = or i32 %18, %19
+  store i32 %or, ptr %x, align 4
+  %20 = load i32, ptr %x, align 4
+  %21 = load i32, ptr %y, align 4
+  %and = and i32 %20, %21
+  store i32 %and, ptr %x, align 4
+  %22 = load i32, ptr %x, align 4
diff --git a/test/test_suite7/assignment/var_variable.c3 b/test/test_suite7/assignment/var_variable.c3
new file mode 100644
index 000000000..89772ea69
--- /dev/null
+++ b/test/test_suite7/assignment/var_variable.c3
@@ -0,0 +1,39 @@
+module test;
+import std::io;
+
+macro @foo(;@body)
+{
+	var i = 1.0;
+	@body();
+}
+
+fn void main()
+{
+	@foo() { int j = 1; };
+	@foo() { var j = 1.0; }; // #error: is only allowed inside
+}
+
+fn void test()
+{
+	var g = 1; // #error: is only allowed inside
+}
+
+macro void test2m()
+{
+	var h = { 1, 2 }; // #error: cannot be inferred
+}
+
+fn void test2()
+{
+	test2m();
+}
+struct Foo { int a; }
+macro void test3m()
+{
+	var $foo = Foo.membersof;
+	var h = $foo[0]; // #error: compile time type
+}
+fn void test3()
+{
+	test3m();
+}
\ No newline at end of file
diff --git a/test/test_suite7/attributes/attr_link_err.c3 b/test/test_suite7/attributes/attr_link_err.c3
new file mode 100644
index 000000000..4f56a61b2
--- /dev/null
+++ b/test/test_suite7/attributes/attr_link_err.c3
@@ -0,0 +1,22 @@
+fn void test(int x) @link(true, "abc", "cde")
+{
+}
+
+fn void testc(int x) @link("abc", "cde")
+{
+}
+
+fn void test2(int x) @link(true) // #error: Expected a constant string here
+{
+}
+fn void test3(int x) @link(true, 2) // #error: Expected a constant string here
+{
+}
+
+fn void test4(int x) @link("a", 2) // #error: Expected a constant string here
+{
+}
+
+fn void test5(int x) @link(true, "a", 5, 5) // #error: Expected a constant string here
+{
+}
diff --git a/test/test_suite7/attributes/attr_not_imported.c3 b/test/test_suite7/attributes/attr_not_imported.c3
new file mode 100644
index 000000000..d8aba13d9
--- /dev/null
+++ b/test/test_suite7/attributes/attr_not_imported.c3
@@ -0,0 +1,7 @@
+module abc;
+
+def @Foo = { @inline };
+
+module bar;
+
+fn void test() abc::@Foo {} // #error: Did you mean the attribute
diff --git a/test/test_suite7/attributes/attribute_params.c3 b/test/test_suite7/attributes/attribute_params.c3
new file mode 100644
index 000000000..dbad2720e
--- /dev/null
+++ b/test/test_suite7/attributes/attribute_params.c3
@@ -0,0 +1,7 @@
+def @Foo() = { @inline }; // #error: At least one parameter was expected
+def @Bar = { @inline };
+
+fn void test1() @Foo { }
+fn void test2() @Foo() { } // #error: An expression was
+fn void test3() @Bar { }
+fn void test4() @Bar() { } // #error: An expression was
\ No newline at end of file
diff --git a/test/test_suite7/attributes/attribute_path.c3 b/test/test_suite7/attributes/attribute_path.c3
new file mode 100644
index 000000000..17783fb31
--- /dev/null
+++ b/test/test_suite7/attributes/attribute_path.c3
@@ -0,0 +1,4 @@
+fn void test() abc::@inline // #error: Only user-defined attribute names
+{
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/attributes/attribute_visibility.c3t b/test/test_suite7/attributes/attribute_visibility.c3t
new file mode 100644
index 000000000..14e9ee109
--- /dev/null
+++ b/test/test_suite7/attributes/attribute_visibility.c3t
@@ -0,0 +1,12 @@
+// #target: macos-x64
+module test;
+const int FOO @private = 4;
+def @Align(x) = { @align(x * FOO) };
+
+module test2;
+import test;
+int black @Align(16) = 123;
+
+/* #expect: test2.ll
+
+@test2.black = local_unnamed_addr global i32 123, align 64
\ No newline at end of file
diff --git a/test/test_suite7/attributes/attributes_repeat_param.c3t b/test/test_suite7/attributes/attributes_repeat_param.c3t
new file mode 100644
index 000000000..9c3ea7915
--- /dev/null
+++ b/test/test_suite7/attributes/attributes_repeat_param.c3t
@@ -0,0 +1,26 @@
+// #target: macos-aarch64
+module test;
+
+def @Test(x) = { @extern("Foo" +++ x) };
+
+fn void hello_world() @Test("Megaman")
+{}
+
+fn void ello_world() @Test("Pegasus")
+{}
+
+fn int main()
+{
+	hello_world();
+	ello_world();
+	return 0;
+}
+
+/* #expect: test.ll
+
+define i32 @main() #0 {
+entry:
+  call void @FooMegaman()
+  call void @FooPegasus()
+  ret i32 0
+}
diff --git a/test/test_suite7/attributes/call_attribute_error_eos.c3 b/test/test_suite7/attributes/call_attribute_error_eos.c3
new file mode 100644
index 000000000..4f610fde6
--- /dev/null
+++ b/test/test_suite7/attributes/call_attribute_error_eos.c3
@@ -0,0 +1,5 @@
+fn void main()
+{
+	call() // #error: ';'
+	rl::bar();
+}
\ No newline at end of file
diff --git a/test/test_suite7/attributes/recursive_attributes.c3 b/test/test_suite7/attributes/recursive_attributes.c3
new file mode 100644
index 000000000..bba90fcf1
--- /dev/null
+++ b/test/test_suite7/attributes/recursive_attributes.c3
@@ -0,0 +1,17 @@
+module test;
+
+def @Align(y) = { @Align16(y / 2) };
+def @Align16(x) = { @align(4) @Align(8 * x) }; // #error: Recursive declaration of attribute
+def @Test = { @noinline };
+struct Foo
+{
+	int z;
+	int xy @Align16(8);
+}
+
+Foo f;
+
+fn void testme() @Test
+{
+	int x;
+}
diff --git a/test/test_suite7/attributes/user_defined_attributes.c3t b/test/test_suite7/attributes/user_defined_attributes.c3t
new file mode 100644
index 000000000..e69aa7ae1
--- /dev/null
+++ b/test/test_suite7/attributes/user_defined_attributes.c3t
@@ -0,0 +1,59 @@
+// #target: macos-x64
+
+module test;
+
+def @Foo = { @noreturn @weak };
+
+def @Align(y) = { @align(y) };
+def @Align16(x) = { @Align(8 * x) @align(1024) } @private;
+def @Test = { @noinline };
+def @TestZero = { };
+struct Foo
+{
+	int z;
+	int xy @Align16(8);
+}
+
+Foo f;
+
+fn void testme2() @Foo
+{}
+
+fn void testme() @Test
+{
+	int x;
+}
+
+fn void main() @TestZero
+{
+	testme();
+}
+
+/* #expect: test.ll
+
+%Foo = type { i32, [1020 x i8], i32, [1020 x i8] }
+
+@"$ct.test.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 2048, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@test.f = local_unnamed_addr global %Foo zeroinitializer, align 1024
+
+define weak void @test.testme2() #0 {
+entry:
+  ret void
+}
+
+define void @test.testme() #1 {
+entry:
+  %x = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  ret void
+}
+
+define void @test.main() #2 {
+entry:
+  call void @test.testme()
+  ret void
+}
+
+attributes #0 = { noreturn nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
+attributes #1 = { noinline nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
+attributes #2 = { nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
diff --git a/test/test_suite7/attributes/wasm_import.c3t b/test/test_suite7/attributes/wasm_import.c3t
new file mode 100644
index 000000000..7c96caa95
--- /dev/null
+++ b/test/test_suite7/attributes/wasm_import.c3t
@@ -0,0 +1,8 @@
+// #target: wasm32
+module test;
+extern fn void test() @wasm("hello", "world");
+
+/* #expect: test.ll
+
+declare void @world() #0
+attributes #0 = { nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" "wasm-export-name"="world" "wasm-import-module"="hello" "wasm-import-name"="world" }
\ No newline at end of file
diff --git a/test/test_suite7/attributes/wasm_module.c3 b/test/test_suite7/attributes/wasm_module.c3
new file mode 100644
index 000000000..d7307f047
--- /dev/null
+++ b/test/test_suite7/attributes/wasm_module.c3
@@ -0,0 +1,5 @@
+
+fn void test() @wasm("hello", "world") { } // #error: Specifying a wasm import module
+extern fn void test2() @wasm("a", "b", "c"); // #error: Too many arguments to
+extern fn void test3() @extern("hello") @wasm("a"); // #error: An external name
+extern fn void test4() @extern("hello") @wasm("a", "b"); // #error: An external name
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/address_of_bitstruct.c3 b/test/test_suite7/bitstruct/address_of_bitstruct.c3
new file mode 100644
index 000000000..7fe1d41ba
--- /dev/null
+++ b/test/test_suite7/bitstruct/address_of_bitstruct.c3
@@ -0,0 +1,15 @@
+bitstruct BitField : char
+{
+  int a : 0..2;
+  int b : 4..5;
+  int c : 6..7;
+}
+
+fn void test()
+{
+    BitField x;
+    BitField* z = &x;
+    x.a;
+    z.a;
+    &x.a; // #error: You cannot take the address of a bitstruct member
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/anon_bitstruct_name_overlap.c3 b/test/test_suite7/bitstruct/anon_bitstruct_name_overlap.c3
new file mode 100644
index 000000000..6390fb585
--- /dev/null
+++ b/test/test_suite7/bitstruct/anon_bitstruct_name_overlap.c3
@@ -0,0 +1,24 @@
+import std::io;
+
+struct Test {
+ushort a;
+  bitstruct : ushort @overlap {
+    ushort ab : 0..15;
+    char a : 8..15; // #error: Duplicate member name 'a'
+    char b : 0..7;
+    bool c : 7;
+    bool d : 6;
+    bool e : 5;
+    bool f : 4;
+  }
+}
+
+fn void main() {
+  io::printfn("Weird structs :P");
+
+  Test test;
+  test.ab = 0xAFBA;
+
+  io::printfn("%02x %02x -> %04x\n", test.a, test.b, test.ab);
+  io::printfn("%x %x %x %x\n", test.c, test.d, test.e, test.f);
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/array_with_boolean.c3t b/test/test_suite7/bitstruct/array_with_boolean.c3t
new file mode 100644
index 000000000..8119b806f
--- /dev/null
+++ b/test/test_suite7/bitstruct/array_with_boolean.c3t
@@ -0,0 +1,69 @@
+// #target: macos-x64
+
+module foo;
+
+bitstruct BitField : char[3]
+{
+  int a : 0..2;
+  int b : 3..8;
+  int c : 9..18;
+  bool d : 19;
+  bool e : 20;
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    BitField xx = { 2, 3, 15, true, false };
+    BitField xy = { 2, 3, 15, false, true };
+    printf("%x, %x, %x, %d, %d\n", xx.a, xx.b, xx.c, xx.d, xx.e);
+}
+
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %xx = alloca [3 x i8], align 1
+  %xy = alloca [3 x i8], align 1
+  store [3 x i8] c"\1A\1E\08", ptr %xx, align 1
+  store [3 x i8] c"\1A\1E\10", ptr %xy, align 1
+  %0 = load i8, ptr %xx, align 1
+  %zext = zext i8 %0 to i32
+  %shl = shl i32 %zext, 29
+  %ashr = ashr i32 %shl, 29
+  %1 = load i8, ptr %xx, align 1
+  %zext1 = zext i8 %1 to i32
+  %lshrl = lshr i32 %zext1, 3
+  %ptradd = getelementptr inbounds i8, ptr %xx, i64 1
+  %2 = load i8, ptr %ptradd, align 1
+  %zext2 = zext i8 %2 to i32
+  %shl3 = shl i32 %zext2, 5
+  %3 = or i32 %shl3, %lshrl
+  %shl4 = shl i32 %3, 26
+  %ashr5 = ashr i32 %shl4, 26
+  %ptradd6 = getelementptr inbounds i8, ptr %xx, i64 1
+  %4 = load i8, ptr %ptradd6, align 1
+  %zext7 = zext i8 %4 to i32
+  %lshrl8 = lshr i32 %zext7, 1
+  %ptradd9 = getelementptr inbounds i8, ptr %xx, i64 2
+  %5 = load i8, ptr %ptradd9, align 1
+  %zext10 = zext i8 %5 to i32
+  %shl11 = shl i32 %zext10, 7
+  %6 = or i32 %shl11, %lshrl8
+  %shl12 = shl i32 %6, 22
+  %ashr13 = ashr i32 %shl12, 22
+  %ptradd14 = getelementptr inbounds i8, ptr %xx, i64 2
+  %7 = load i8, ptr %ptradd14, align 1
+  %lshrl15 = lshr i8 %7, 3
+  %8 = trunc i8 %lshrl15 to i1
+  %zext16 = zext i1 %8 to i32
+  %ptradd17 = getelementptr inbounds i8, ptr %xx, i64 2
+  %9 = load i8, ptr %ptradd17, align 1
+  %lshrl18 = lshr i8 %9, 4
+  %10 = trunc i8 %lshrl18 to i1
+  %zext19 = zext i1 %10 to i32
+  call void (ptr, ...) @printf(ptr @.str, i32 %ashr, i32 %ashr5, i32 %ashr13, i32 %zext16, i32 %zext19)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bistruct_cast_wrong_size.c3 b/test/test_suite7/bitstruct/bistruct_cast_wrong_size.c3
new file mode 100644
index 000000000..27b1e34c7
--- /dev/null
+++ b/test/test_suite7/bitstruct/bistruct_cast_wrong_size.c3
@@ -0,0 +1,14 @@
+module bug_repro;
+
+bitstruct Edge_Flags : char {
+  bool left;
+  bool top;
+  bool right;
+  bool bottom;
+}
+
+fn int main() {
+  Edge_Flags edges;
+  Edge_Flags a = edges & (Edge_Flags)(1 << 0); // #error: 'int'
+  return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitfield_access.c3t b/test/test_suite7/bitstruct/bitfield_access.c3t
new file mode 100644
index 000000000..22962cf06
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitfield_access.c3t
@@ -0,0 +1,173 @@
+// #target: macos-x64
+
+module foo;
+
+bitstruct BitField : char
+{
+  int a : 0..2;
+  int b : 4..5;
+  int c : 6..7;
+}
+
+bitstruct BitFieldI : ushort
+{
+  int a : 0..4;
+  int b : 5..10;
+  int c : 11..15;
+}
+
+
+struct Packet
+{
+  bitstruct : int
+  {
+    int a : 0..2;
+    int b : 3..5;
+    int c : 6..10;
+  }
+  int packet_id;
+}
+
+bitstruct BitField3 : char[3]
+{
+  int a : 0..2;
+  int b : 3..8;
+  int c : 9..18;
+  int d : 19..23;
+}
+
+bitstruct BitField3u : char[3]
+{
+  uint a : 0..2;
+  uint b : 3..8;
+  uint c : 9..18;
+  uint d : 19..23;
+}
+
+bitstruct BitField4 : char[3]
+{
+  int a : 0..2;
+  int b : 3..7;
+  int c : 8..15;
+  int d : 16..19;
+}
+
+bitstruct BitFieldCross : char[5]
+{
+    uint a : 5..22;
+}
+
+BitField c = { 2, -1, 1 };
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    BitField b = { 3, -1, 1 };
+    BitFieldI c1 = { 5, 0, 0 };
+    BitFieldI c2 = { 0, 3, 0 };
+    BitFieldI c3 = { 0, 0, 9 };
+    BitFieldI c4 = { -5, 7, 9 };
+    BitFieldI c5 = { -5, 0, 0 };
+    BitFieldI c6 = { 5, 0, 0 };
+    BitFieldI c7 = { 0, 0, 5 };
+
+    BitField3 e1 = { 3, 1, 3, 4 };
+    BitField3 e2 = { 1, 1, 3, 4 };
+    BitField3 e3 = { 2, 1, 3, 4 };
+    BitField d = { };
+
+    printf("%d\n", e1.a);
+    printf("%d\n", e2.a);
+    printf("%d\n", e3.a);
+
+    BitField3u z1 = { 3, 1, 3, 4 };
+    BitField3u z2 = { 4, 1, 3, 4 };
+    BitField3u z3 = { 7, 1, 3, 4 };
+    printf("%u\n", z1.a);
+    printf("%u\n", z2.a);
+    printf("%u\n", z3.a);
+    BitFieldCross xx = { 0x1238 };
+    printf("%x\n", xx.a);
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %b = alloca i8, align 1
+  %c1 = alloca i16, align 2
+  %c2 = alloca i16, align 2
+  %c3 = alloca i16, align 2
+  %c4 = alloca i16, align 2
+  %c5 = alloca i16, align 2
+  %c6 = alloca i16, align 2
+  %c7 = alloca i16, align 2
+  %e1 = alloca [3 x i8], align 1
+  %e2 = alloca [3 x i8], align 1
+  %e3 = alloca [3 x i8], align 1
+  %d = alloca i8, align 1
+  %z1 = alloca [3 x i8], align 1
+  %z2 = alloca [3 x i8], align 1
+  %z3 = alloca [3 x i8], align 1
+  %xx = alloca [5 x i8], align 1
+  store i8 115, ptr %b, align 1
+  store i16 5, ptr %c1, align 2
+  store i16 96, ptr %c2, align 2
+  store i16 18432, ptr %c3, align 2
+  store i16 18683, ptr %c4, align 2
+  store i16 27, ptr %c5, align 2
+  store i16 5, ptr %c6, align 2
+  store i16 10240, ptr %c7, align 2
+  store [3 x i8] c"\0B\06 ", ptr %e1, align 1
+  store [3 x i8] c"\09\06 ", ptr %e2, align 1
+  store [3 x i8] c"\0A\06 ", ptr %e3, align 1
+  store i8 0, ptr %d, align 1
+  %0 = load i8, ptr %e1, align 1
+  %zext = zext i8 %0 to i32
+  %shl = shl i32 %zext, 29
+  %ashr = ashr i32 %shl, 29
+  call void (ptr, ...) @printf(ptr @.str, i32 %ashr)
+  %1 = load i8, ptr %e2, align 1
+  %zext1 = zext i8 %1 to i32
+  %shl2 = shl i32 %zext1, 29
+  %ashr3 = ashr i32 %shl2, 29
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %ashr3)
+  %2 = load i8, ptr %e3, align 1
+  %zext4 = zext i8 %2 to i32
+  %shl5 = shl i32 %zext4, 29
+  %ashr6 = ashr i32 %shl5, 29
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %ashr6)
+  store [3 x i8] c"\0B\06 ", ptr %z1, align 1
+  store [3 x i8] c"\0C\06 ", ptr %z2, align 1
+  store [3 x i8] c"\0F\06 ", ptr %z3, align 1
+  %3 = load i8, ptr %z1, align 1
+  %zext7 = zext i8 %3 to i32
+  %4 = and i32 7, %zext7
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %4)
+  %5 = load i8, ptr %z2, align 1
+  %zext8 = zext i8 %5 to i32
+  %6 = and i32 7, %zext8
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %6)
+  %7 = load i8, ptr %z3, align 1
+  %zext9 = zext i8 %7 to i32
+  %8 = and i32 7, %zext9
+  call void (ptr, ...) @printf(ptr @.str.5, i32 %8)
+  store [5 x i8] c"\00G\02\00\00", ptr %xx, align 1
+  %9 = load i8, ptr %xx, align 1
+  %zext10 = zext i8 %9 to i32
+  %lshrl = lshr i32 %zext10, 5
+  %ptradd = getelementptr inbounds i8, ptr %xx, i64 1
+  %10 = load i8, ptr %ptradd, align 1
+  %zext11 = zext i8 %10 to i32
+  %shl12 = shl i32 %zext11, 3
+  %11 = or i32 %shl12, %lshrl
+  %ptradd13 = getelementptr inbounds i8, ptr %xx, i64 2
+  %12 = load i8, ptr %ptradd13, align 1
+  %zext14 = zext i8 %12 to i32
+  %shl15 = shl i32 %zext14, 11
+  %13 = or i32 %shl15, %11
+  %14 = and i32 262143, %13
+  call void (ptr, ...) @printf(ptr @.str.6, i32 %14)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_access_signed.c3t b/test/test_suite7/bitstruct/bitstruct_access_signed.c3t
new file mode 100644
index 000000000..5c3423e09
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_access_signed.c3t
@@ -0,0 +1,88 @@
+// #target: macos-x64
+
+module foo;
+
+bitstruct BitFieldCross : char[3]
+{
+    uint d : 0..4;
+    int a : 5..22;
+    uint c : 23..23;
+}
+
+bitstruct BitFieldCrossU : char[3]
+{
+    uint d : 0..4;
+    uint a : 5..22;
+    uint c : 23..23;
+}
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    BitFieldCross xx = { 0, -17, 0 };
+    printf("%d\n", xx.a);
+    xx = { 0x1f, -17, 1 };
+    printf("%d\n", xx.a);
+    BitFieldCrossU xxu = { 0x1f, 0x15678, 1 };
+    printf("%x\n", xxu.a);
+
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %xx = alloca [3 x i8], align 1
+  %xxu = alloca [3 x i8], align 1
+  store [3 x i8] c"\E0\FD\7F", ptr %xx, align 1
+  %0 = load i8, ptr %xx, align 1
+  %zext = zext i8 %0 to i32
+  %lshrl = lshr i32 %zext, 5
+  %ptradd = getelementptr inbounds i8, ptr %xx, i64 1
+  %1 = load i8, ptr %ptradd, align 1
+  %zext1 = zext i8 %1 to i32
+  %shl = shl i32 %zext1, 3
+  %2 = or i32 %shl, %lshrl
+  %ptradd2 = getelementptr inbounds i8, ptr %xx, i64 2
+  %3 = load i8, ptr %ptradd2, align 1
+  %zext3 = zext i8 %3 to i32
+  %shl4 = shl i32 %zext3, 11
+  %4 = or i32 %shl4, %2
+  %shl5 = shl i32 %4, 14
+  %ashr = ashr i32 %shl5, 14
+  call void (ptr, ...) @printf(ptr @.str, i32 %ashr)
+  store [3 x i8] c"\FF\FD\FF", ptr %xx, align 1
+  %5 = load i8, ptr %xx, align 1
+  %zext6 = zext i8 %5 to i32
+  %lshrl7 = lshr i32 %zext6, 5
+  %ptradd8 = getelementptr inbounds i8, ptr %xx, i64 1
+  %6 = load i8, ptr %ptradd8, align 1
+  %zext9 = zext i8 %6 to i32
+  %shl10 = shl i32 %zext9, 3
+  %7 = or i32 %shl10, %lshrl7
+  %ptradd11 = getelementptr inbounds i8, ptr %xx, i64 2
+  %8 = load i8, ptr %ptradd11, align 1
+  %zext12 = zext i8 %8 to i32
+  %shl13 = shl i32 %zext12, 11
+  %9 = or i32 %shl13, %7
+  %shl14 = shl i32 %9, 14
+  %ashr15 = ashr i32 %shl14, 14
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %ashr15)
+  store [3 x i8] c"\1F\CF\AA", ptr %xxu, align 1
+  %10 = load i8, ptr %xxu, align 1
+  %zext16 = zext i8 %10 to i32
+  %lshrl17 = lshr i32 %zext16, 5
+  %ptradd18 = getelementptr inbounds i8, ptr %xxu, i64 1
+  %11 = load i8, ptr %ptradd18, align 1
+  %zext19 = zext i8 %11 to i32
+  %shl20 = shl i32 %zext19, 3
+  %12 = or i32 %shl20, %lshrl17
+  %ptradd21 = getelementptr inbounds i8, ptr %xxu, i64 2
+  %13 = load i8, ptr %ptradd21, align 1
+  %zext22 = zext i8 %13 to i32
+  %shl23 = shl i32 %zext22, 11
+  %14 = or i32 %shl23, %12
+  %15 = and i32 262143, %14
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %15)
+  ret void
+}
diff --git a/test/test_suite7/bitstruct/bitstruct_align.c3t b/test/test_suite7/bitstruct/bitstruct_align.c3t
new file mode 100644
index 000000000..67e353273
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_align.c3t
@@ -0,0 +1,40 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+Foo y;
+bitstruct Foo : ushort @align(1)
+{
+	int a : 0..10;
+}
+fn int main(String[] args)
+{
+	Foo z = y;
+	Foo* y = &z;
+	y.a = 123;
+	return 0;
+}
+
+/* #expect: test.ll
+
+@test.y = local_unnamed_addr global i16 0, align 1
+
+define i32 @test.main(ptr %0, i64 %1) #0 {
+entry:
+  %args = alloca %"char[][]", align 8
+  %z = alloca i16, align 1
+  %y = alloca ptr, align 8
+  store ptr %0, ptr %args, align 8
+  %ptradd = getelementptr inbounds i8, ptr %args, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %2 = load i16, ptr @test.y, align 1
+  store i16 %2, ptr %z, align 1
+  store ptr %z, ptr %y, align 8
+  %3 = load ptr, ptr %y, align 8
+  %4 = load i16, ptr %3, align 1
+  %5 = and i16 %4, -2048
+  %6 = or i16 %5, 123
+  store i16 %6, ptr %3, align 1
+  ret i32 0
+}
+
diff --git a/test/test_suite7/bitstruct/bitstruct_anon_in_struct_ok.c3t b/test/test_suite7/bitstruct/bitstruct_anon_in_struct_ok.c3t
new file mode 100644
index 000000000..cf79b500c
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_anon_in_struct_ok.c3t
@@ -0,0 +1,119 @@
+// #target: macos-x64
+module foo;
+import std::io;
+
+struct Test {
+ushort afff;
+  bitstruct : ushort @overlap {
+    ushort ab : 0..15;
+    char a : 8..15;
+    char b : 0..7;
+    bool c : 7;
+    bool d : 6;
+    bool e : 5;
+    bool f : 4;
+  }
+}
+
+fn void main() {
+
+
+  Test test;
+  test.ab = 0xAFBA;
+
+  io::printfn("%02x %02x -> %04x\n", test.a, test.b, test.ab);
+  io::printfn("%x %x %x %x\n", test.c, test.d, test.e, test.f);
+}
+
+/* #expect: foo.ll
+
+
+define void @foo.main() #0 {
+entry:
+  %test = alloca %Test, align 2
+  %varargslots = alloca [3 x %any], align 16
+  %taddr = alloca i8, align 1
+  %taddr5 = alloca i8, align 1
+  %taddr8 = alloca i16, align 2
+  %retparam = alloca i64, align 8
+  %varargslots10 = alloca [4 x %any], align 16
+  %taddr14 = alloca i8, align 1
+  %taddr18 = alloca i8, align 1
+  %taddr23 = alloca i8, align 1
+  %taddr28 = alloca i8, align 1
+  %retparam30 = alloca i64, align 8
+  store i16 0, ptr %test, align 2
+  %ptradd = getelementptr inbounds i8, ptr %test, i64 2
+  store i16 0, ptr %ptradd, align 2
+  %ptradd1 = getelementptr inbounds i8, ptr %test, i64 2
+  %0 = load i16, ptr %ptradd1, align 2
+  store i16 -20550, ptr %ptradd1, align 2
+  %ptradd2 = getelementptr inbounds i8, ptr %test, i64 2
+  %1 = load i16, ptr %ptradd2, align 2
+  %lshrl = lshr i16 %1, 8
+  %2 = and i16 255, %lshrl
+  %trunc = trunc i16 %2 to i8
+  store i8 %trunc, ptr %taddr, align 1
+  %3 = insertvalue %any undef, ptr %taddr, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %4, ptr %varargslots, align 16
+  %ptradd3 = getelementptr inbounds i8, ptr %test, i64 2
+  %5 = load i16, ptr %ptradd3, align 2
+  %6 = and i16 255, %5
+  %trunc4 = trunc i16 %6 to i8
+  store i8 %trunc4, ptr %taddr5, align 1
+  %7 = insertvalue %any undef, ptr %taddr5, 0
+  %8 = insertvalue %any %7, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  %ptradd6 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %8, ptr %ptradd6, align 16
+  %ptradd7 = getelementptr inbounds i8, ptr %test, i64 2
+  %9 = load i16, ptr %ptradd7, align 2
+  store i16 %9, ptr %taddr8, align 2
+  %10 = insertvalue %any undef, ptr %taddr8, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.ushort" to i64), 1
+  %ptradd9 = getelementptr inbounds i8, ptr %varargslots, i64 32
+  store %any %11, ptr %ptradd9, align 16
+  %12 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 18, ptr %varargslots, i64 3)
+  %ptradd11 = getelementptr inbounds i8, ptr %test, i64 2
+  %13 = load i16, ptr %ptradd11, align 2
+  %lshrl12 = lshr i16 %13, 7
+  %14 = and i16 1, %lshrl12
+  %trunc13 = trunc i16 %14 to i8
+  store i8 %trunc13, ptr %taddr14, align 1
+  %15 = insertvalue %any undef, ptr %taddr14, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %16, ptr %varargslots10, align 16
+  %ptradd15 = getelementptr inbounds i8, ptr %test, i64 2
+  %17 = load i16, ptr %ptradd15, align 2
+  %lshrl16 = lshr i16 %17, 6
+  %18 = and i16 1, %lshrl16
+  %trunc17 = trunc i16 %18 to i8
+  store i8 %trunc17, ptr %taddr18, align 1
+  %19 = insertvalue %any undef, ptr %taddr18, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd19 = getelementptr inbounds i8, ptr %varargslots10, i64 16
+  store %any %20, ptr %ptradd19, align 16
+  %ptradd20 = getelementptr inbounds i8, ptr %test, i64 2
+  %21 = load i16, ptr %ptradd20, align 2
+  %lshrl21 = lshr i16 %21, 5
+  %22 = and i16 1, %lshrl21
+  %trunc22 = trunc i16 %22 to i8
+  store i8 %trunc22, ptr %taddr23, align 1
+  %23 = insertvalue %any undef, ptr %taddr23, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd24 = getelementptr inbounds i8, ptr %varargslots10, i64 32
+  store %any %24, ptr %ptradd24, align 16
+  %ptradd25 = getelementptr inbounds i8, ptr %test, i64 2
+  %25 = load i16, ptr %ptradd25, align 2
+  %lshrl26 = lshr i16 %25, 4
+  %26 = and i16 1, %lshrl26
+  %trunc27 = trunc i16 %26 to i8
+  store i8 %trunc27, ptr %taddr28, align 1
+  %27 = insertvalue %any undef, ptr %taddr28, 0
+  %28 = insertvalue %any %27, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd29 = getelementptr inbounds i8, ptr %varargslots10, i64 48
+  store %any %28, ptr %ptradd29, align 16
+  %29 = call i64 @std.io.printfn(ptr %retparam30, ptr @.str.1, i64 12, ptr %varargslots10, i64 4)
+  ret void
+}
+
diff --git a/test/test_suite7/bitstruct/bitstruct_arrays.c3t b/test/test_suite7/bitstruct/bitstruct_arrays.c3t
new file mode 100644
index 000000000..afc4f346b
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_arrays.c3t
@@ -0,0 +1,1069 @@
+// #target: macos-x64
+
+module foo;
+
+bitstruct BitField : long
+{
+  int a : 0..2;
+  int b : 3..8;
+  int c : 9..18;
+  bool d : 19;
+  bool e : 20;
+}
+
+bitstruct BitField2 : char[3]
+{
+  int a : 0..2;
+  int b : 3..8;
+  int c : 9..18;
+  bool d : 19;
+  bool e : 20;
+}
+
+bitstruct BitField3 : char[3]
+{
+  int a : 1..3;
+  int b : 4..9;
+  int c : 10..19;
+  bool d : 20;
+  bool e : 21;
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    test1();
+    test2();
+    test3();
+}
+fn void test1()
+{
+    BitField xx = { 2, 3, 15, true, false };
+    xx.a = 3;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.a -= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b *= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b ^= 4;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b |= 4;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b <<= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b >>= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b /= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b %= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.e = true;
+    printf("%d\n", xx.e);
+    xx.e = false;
+    printf("%d\n", xx.e);
+}
+
+fn void test2()
+{
+    BitField2 xx = { 2, 3, 15, false, false };
+    xx.a = 3;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.a -= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b *= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b ^= 4;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b |= 4;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b <<= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b >>= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b /= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b %= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    printf("..%d\n", xx.e);
+    xx.e = true;
+    printf("%d\n", xx.e);
+    xx.e = false;
+    printf("%d\n", xx.e);
+}
+
+fn void test3()
+{
+    BitField3 xx = { 2, 3, 15, false, false };
+    xx.a = 3;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.a -= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b *= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b ^= 4;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b |= 4;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b <<= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b >>= 1;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b /= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    xx.b %= 2;
+    printf("%d, %d\n", xx.a, xx.b);
+    printf("..%d\n", xx.e);
+    xx.e = true;
+    printf("%d\n", xx.e);
+    xx.e = false;
+    printf("%d\n", xx.e);
+}
+
+/* #expect: foo.ll
+
+define void @foo.test1() #0 {
+entry:
+  %xx = alloca i64, align 8
+  store i64 531994, ptr %xx, align 8
+  %0 = load i64, ptr %xx, align 8
+  %1 = and i64 %0, -8
+  %2 = or i64 %1, 3
+  store i64 %2, ptr %xx, align 8
+  %3 = load i64, ptr %xx, align 8
+  %shl = shl i64 %3, 61
+  %ashr = ashr i64 %shl, 61
+  %trunc = trunc i64 %ashr to i32
+  %4 = load i64, ptr %xx, align 8
+  %shl1 = shl i64 %4, 55
+  %ashr2 = ashr i64 %shl1, 58
+  %trunc3 = trunc i64 %ashr2 to i32
+  call void (ptr, ...) @printf(ptr @.str, i32 %trunc, i32 %trunc3)
+  %5 = load i64, ptr %xx, align 8
+  %shl4 = shl i64 %5, 61
+  %ashr5 = ashr i64 %shl4, 61
+  %trunc6 = trunc i64 %ashr5 to i32
+  %sub = sub i32 %trunc6, 1
+  %6 = load i64, ptr %xx, align 8
+  %zext = zext i32 %sub to i64
+  %7 = and i64 %zext, 7
+  %8 = and i64 %6, -8
+  %9 = or i64 %8, %7
+  store i64 %9, ptr %xx, align 8
+  %10 = load i64, ptr %xx, align 8
+  %shl7 = shl i64 %10, 61
+  %ashr8 = ashr i64 %shl7, 61
+  %trunc9 = trunc i64 %ashr8 to i32
+  %11 = load i64, ptr %xx, align 8
+  %shl10 = shl i64 %11, 55
+  %ashr11 = ashr i64 %shl10, 58
+  %trunc12 = trunc i64 %ashr11 to i32
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %trunc9, i32 %trunc12)
+  %12 = load i64, ptr %xx, align 8
+  %shl13 = shl i64 %12, 55
+  %ashr14 = ashr i64 %shl13, 58
+  %trunc15 = trunc i64 %ashr14 to i32
+  %mul = mul i32 %trunc15, 2
+  %13 = load i64, ptr %xx, align 8
+  %zext16 = zext i32 %mul to i64
+  %shl17 = shl i64 %zext16, 3
+  %14 = and i64 %shl17, 504
+  %15 = and i64 %13, -505
+  %16 = or i64 %15, %14
+  store i64 %16, ptr %xx, align 8
+  %17 = load i64, ptr %xx, align 8
+  %shl18 = shl i64 %17, 61
+  %ashr19 = ashr i64 %shl18, 61
+  %trunc20 = trunc i64 %ashr19 to i32
+  %18 = load i64, ptr %xx, align 8
+  %shl21 = shl i64 %18, 55
+  %ashr22 = ashr i64 %shl21, 58
+  %trunc23 = trunc i64 %ashr22 to i32
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %trunc20, i32 %trunc23)
+  %19 = load i64, ptr %xx, align 8
+  %shl24 = shl i64 %19, 55
+  %ashr25 = ashr i64 %shl24, 58
+  %trunc26 = trunc i64 %ashr25 to i32
+  %xor = xor i32 %trunc26, 4
+  %20 = load i64, ptr %xx, align 8
+  %zext27 = zext i32 %xor to i64
+  %shl28 = shl i64 %zext27, 3
+  %21 = and i64 %shl28, 504
+  %22 = and i64 %20, -505
+  %23 = or i64 %22, %21
+  store i64 %23, ptr %xx, align 8
+  %24 = load i64, ptr %xx, align 8
+  %shl29 = shl i64 %24, 61
+  %ashr30 = ashr i64 %shl29, 61
+  %trunc31 = trunc i64 %ashr30 to i32
+  %25 = load i64, ptr %xx, align 8
+  %shl32 = shl i64 %25, 55
+  %ashr33 = ashr i64 %shl32, 58
+  %trunc34 = trunc i64 %ashr33 to i32
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %trunc31, i32 %trunc34)
+  %26 = load i64, ptr %xx, align 8
+  %shl35 = shl i64 %26, 55
+  %ashr36 = ashr i64 %shl35, 58
+  %trunc37 = trunc i64 %ashr36 to i32
+  %or = or i32 %trunc37, 4
+  %27 = load i64, ptr %xx, align 8
+  %zext38 = zext i32 %or to i64
+  %shl39 = shl i64 %zext38, 3
+  %28 = and i64 %shl39, 504
+  %29 = and i64 %27, -505
+  %30 = or i64 %29, %28
+  store i64 %30, ptr %xx, align 8
+  %31 = load i64, ptr %xx, align 8
+  %shl40 = shl i64 %31, 61
+  %ashr41 = ashr i64 %shl40, 61
+  %trunc42 = trunc i64 %ashr41 to i32
+  %32 = load i64, ptr %xx, align 8
+  %shl43 = shl i64 %32, 55
+  %ashr44 = ashr i64 %shl43, 58
+  %trunc45 = trunc i64 %ashr44 to i32
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %trunc42, i32 %trunc45)
+  %33 = load i64, ptr %xx, align 8
+  %shl46 = shl i64 %33, 55
+  %ashr47 = ashr i64 %shl46, 58
+  %trunc48 = trunc i64 %ashr47 to i32
+  %shl49 = shl i32 %trunc48, 1
+  %34 = freeze i32 %shl49
+  %35 = load i64, ptr %xx, align 8
+  %zext50 = zext i32 %34 to i64
+  %shl51 = shl i64 %zext50, 3
+  %36 = and i64 %shl51, 504
+  %37 = and i64 %35, -505
+  %38 = or i64 %37, %36
+  store i64 %38, ptr %xx, align 8
+  %39 = load i64, ptr %xx, align 8
+  %shl52 = shl i64 %39, 61
+  %ashr53 = ashr i64 %shl52, 61
+  %trunc54 = trunc i64 %ashr53 to i32
+  %40 = load i64, ptr %xx, align 8
+  %shl55 = shl i64 %40, 55
+  %ashr56 = ashr i64 %shl55, 58
+  %trunc57 = trunc i64 %ashr56 to i32
+  call void (ptr, ...) @printf(ptr @.str.5, i32 %trunc54, i32 %trunc57)
+  %41 = load i64, ptr %xx, align 8
+  %shl58 = shl i64 %41, 55
+  %ashr59 = ashr i64 %shl58, 58
+  %trunc60 = trunc i64 %ashr59 to i32
+  %ashr61 = ashr i32 %trunc60, 1
+  %42 = freeze i32 %ashr61
+  %43 = load i64, ptr %xx, align 8
+  %zext62 = zext i32 %42 to i64
+  %shl63 = shl i64 %zext62, 3
+  %44 = and i64 %shl63, 504
+  %45 = and i64 %43, -505
+  %46 = or i64 %45, %44
+  store i64 %46, ptr %xx, align 8
+  %47 = load i64, ptr %xx, align 8
+  %shl64 = shl i64 %47, 61
+  %ashr65 = ashr i64 %shl64, 61
+  %trunc66 = trunc i64 %ashr65 to i32
+  %48 = load i64, ptr %xx, align 8
+  %shl67 = shl i64 %48, 55
+  %ashr68 = ashr i64 %shl67, 58
+  %trunc69 = trunc i64 %ashr68 to i32
+  call void (ptr, ...) @printf(ptr @.str.6, i32 %trunc66, i32 %trunc69)
+  %49 = load i64, ptr %xx, align 8
+  %shl70 = shl i64 %49, 55
+  %ashr71 = ashr i64 %shl70, 58
+  %trunc72 = trunc i64 %ashr71 to i32
+  %sdiv = sdiv i32 %trunc72, 2
+  %50 = load i64, ptr %xx, align 8
+  %zext73 = zext i32 %sdiv to i64
+  %shl74 = shl i64 %zext73, 3
+  %51 = and i64 %shl74, 504
+  %52 = and i64 %50, -505
+  %53 = or i64 %52, %51
+  store i64 %53, ptr %xx, align 8
+  %54 = load i64, ptr %xx, align 8
+  %shl75 = shl i64 %54, 61
+  %ashr76 = ashr i64 %shl75, 61
+  %trunc77 = trunc i64 %ashr76 to i32
+  %55 = load i64, ptr %xx, align 8
+  %shl78 = shl i64 %55, 55
+  %ashr79 = ashr i64 %shl78, 58
+  %trunc80 = trunc i64 %ashr79 to i32
+  call void (ptr, ...) @printf(ptr @.str.7, i32 %trunc77, i32 %trunc80)
+  %56 = load i64, ptr %xx, align 8
+  %shl81 = shl i64 %56, 55
+  %ashr82 = ashr i64 %shl81, 58
+  %trunc83 = trunc i64 %ashr82 to i32
+  %smod = srem i32 %trunc83, 2
+  %57 = load i64, ptr %xx, align 8
+  %zext84 = zext i32 %smod to i64
+  %shl85 = shl i64 %zext84, 3
+  %58 = and i64 %shl85, 504
+  %59 = and i64 %57, -505
+  %60 = or i64 %59, %58
+  store i64 %60, ptr %xx, align 8
+  %61 = load i64, ptr %xx, align 8
+  %shl86 = shl i64 %61, 61
+  %ashr87 = ashr i64 %shl86, 61
+  %trunc88 = trunc i64 %ashr87 to i32
+  %62 = load i64, ptr %xx, align 8
+  %shl89 = shl i64 %62, 55
+  %ashr90 = ashr i64 %shl89, 58
+  %trunc91 = trunc i64 %ashr90 to i32
+  call void (ptr, ...) @printf(ptr @.str.8, i32 %trunc88, i32 %trunc91)
+  %63 = load i64, ptr %xx, align 8
+  %64 = and i64 %63, -1048577
+  %65 = or i64 %64, 1048576
+  store i64 %65, ptr %xx, align 8
+  %66 = load i64, ptr %xx, align 8
+  %lshrl = lshr i64 %66, 20
+  %67 = and i64 1, %lshrl
+  %trunc92 = trunc i64 %67 to i8
+  %68 = trunc i8 %trunc92 to i1
+  %zext93 = zext i1 %68 to i32
+  call void (ptr, ...) @printf(ptr @.str.9, i32 %zext93)
+  %69 = load i64, ptr %xx, align 8
+  %70 = and i64 %69, -1048577
+  store i64 %70, ptr %xx, align 8
+  %71 = load i64, ptr %xx, align 8
+  %lshrl94 = lshr i64 %71, 20
+  %72 = and i64 1, %lshrl94
+  %trunc95 = trunc i64 %72 to i8
+  %73 = trunc i8 %trunc95 to i1
+  %zext96 = zext i1 %73 to i32
+  call void (ptr, ...) @printf(ptr @.str.10, i32 %zext96)
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test2() #0 {
+entry:
+  %xx = alloca [3 x i8], align 1
+  store [3 x i8] c"\1A\1E\00", ptr %xx, align 1
+  %0 = load i8, ptr %xx, align 1
+  %1 = and i8 %0, -8
+  %2 = or i8 %1, 3
+  store i8 %1, ptr %xx, align 1
+  %3 = load i8, ptr %xx, align 1
+  %zext = zext i8 %3 to i32
+  %shl = shl i32 %zext, 29
+  %ashr = ashr i32 %shl, 29
+  %4 = load i8, ptr %xx, align 1
+  %zext1 = zext i8 %4 to i32
+  %lshrl = lshr i32 %zext1, 3
+  %ptradd = getelementptr inbounds i8, ptr %xx, i64 1
+  %5 = load i8, ptr %ptradd, align 1
+  %zext2 = zext i8 %5 to i32
+  %shl3 = shl i32 %zext2, 5
+  %6 = or i32 %shl3, %lshrl
+  %shl4 = shl i32 %6, 26
+  %ashr5 = ashr i32 %shl4, 26
+  call void (ptr, ...) @printf(ptr @.str.11, i32 %ashr, i32 %ashr5)
+  %7 = load i8, ptr %xx, align 1
+  %zext6 = zext i8 %7 to i32
+  %shl7 = shl i32 %zext6, 29
+  %ashr8 = ashr i32 %shl7, 29
+  %sub = sub i32 %ashr8, 1
+  %trunc = trunc i32 %sub to i8
+  %8 = and i8 %trunc, 7
+  %9 = load i8, ptr %xx, align 1
+  %10 = and i8 %9, -8
+  %11 = or i8 %10, %8
+  store i8 %10, ptr %xx, align 1
+  %12 = load i8, ptr %xx, align 1
+  %zext9 = zext i8 %12 to i32
+  %shl10 = shl i32 %zext9, 29
+  %ashr11 = ashr i32 %shl10, 29
+  %13 = load i8, ptr %xx, align 1
+  %zext12 = zext i8 %13 to i32
+  %lshrl13 = lshr i32 %zext12, 3
+  %ptradd14 = getelementptr inbounds i8, ptr %xx, i64 1
+  %14 = load i8, ptr %ptradd14, align 1
+  %zext15 = zext i8 %14 to i32
+  %shl16 = shl i32 %zext15, 5
+  %15 = or i32 %shl16, %lshrl13
+  %shl17 = shl i32 %15, 26
+  %ashr18 = ashr i32 %shl17, 26
+  call void (ptr, ...) @printf(ptr @.str.12, i32 %ashr11, i32 %ashr18)
+  %16 = load i8, ptr %xx, align 1
+  %zext19 = zext i8 %16 to i32
+  %lshrl20 = lshr i32 %zext19, 3
+  %ptradd21 = getelementptr inbounds i8, ptr %xx, i64 1
+  %17 = load i8, ptr %ptradd21, align 1
+  %zext22 = zext i8 %17 to i32
+  %shl23 = shl i32 %zext22, 5
+  %18 = or i32 %shl23, %lshrl20
+  %shl24 = shl i32 %18, 26
+  %ashr25 = ashr i32 %shl24, 26
+  %mul = mul i32 %ashr25, 2
+  %shl26 = shl i32 %mul, 3
+  %trunc27 = trunc i32 %shl26 to i8
+  %19 = load i8, ptr %xx, align 1
+  %20 = and i8 %19, 7
+  %21 = or i8 %20, %trunc27
+  store i8 %21, ptr %xx, align 1
+  %lshrl28 = lshr i32 %mul, 5
+  %ptradd29 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc30 = trunc i32 %lshrl28 to i8
+  %22 = and i8 %trunc30, 1
+  %23 = load i8, ptr %ptradd29, align 1
+  %24 = and i8 %23, -2
+  %25 = or i8 %24, %22
+  store i8 %24, ptr %ptradd29, align 1
+  %26 = load i8, ptr %xx, align 1
+  %zext31 = zext i8 %26 to i32
+  %shl32 = shl i32 %zext31, 29
+  %ashr33 = ashr i32 %shl32, 29
+  %27 = load i8, ptr %xx, align 1
+  %zext34 = zext i8 %27 to i32
+  %lshrl35 = lshr i32 %zext34, 3
+  %ptradd36 = getelementptr inbounds i8, ptr %xx, i64 1
+  %28 = load i8, ptr %ptradd36, align 1
+  %zext37 = zext i8 %28 to i32
+  %shl38 = shl i32 %zext37, 5
+  %29 = or i32 %shl38, %lshrl35
+  %shl39 = shl i32 %29, 26
+  %ashr40 = ashr i32 %shl39, 26
+  call void (ptr, ...) @printf(ptr @.str.13, i32 %ashr33, i32 %ashr40)
+  %30 = load i8, ptr %xx, align 1
+  %zext41 = zext i8 %30 to i32
+  %lshrl42 = lshr i32 %zext41, 3
+  %ptradd43 = getelementptr inbounds i8, ptr %xx, i64 1
+  %31 = load i8, ptr %ptradd43, align 1
+  %zext44 = zext i8 %31 to i32
+  %shl45 = shl i32 %zext44, 5
+  %32 = or i32 %shl45, %lshrl42
+  %shl46 = shl i32 %32, 26
+  %ashr47 = ashr i32 %shl46, 26
+  %xor = xor i32 %ashr47, 4
+  %shl48 = shl i32 %xor, 3
+  %trunc49 = trunc i32 %shl48 to i8
+  %33 = load i8, ptr %xx, align 1
+  %34 = and i8 %33, 7
+  %35 = or i8 %34, %trunc49
+  store i8 %35, ptr %xx, align 1
+  %lshrl50 = lshr i32 %xor, 5
+  %ptradd51 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc52 = trunc i32 %lshrl50 to i8
+  %36 = and i8 %trunc52, 1
+  %37 = load i8, ptr %ptradd51, align 1
+  %38 = and i8 %37, -2
+  %39 = or i8 %38, %36
+  store i8 %38, ptr %ptradd51, align 1
+  %40 = load i8, ptr %xx, align 1
+  %zext53 = zext i8 %40 to i32
+  %shl54 = shl i32 %zext53, 29
+  %ashr55 = ashr i32 %shl54, 29
+  %41 = load i8, ptr %xx, align 1
+  %zext56 = zext i8 %41 to i32
+  %lshrl57 = lshr i32 %zext56, 3
+  %ptradd58 = getelementptr inbounds i8, ptr %xx, i64 1
+  %42 = load i8, ptr %ptradd58, align 1
+  %zext59 = zext i8 %42 to i32
+  %shl60 = shl i32 %zext59, 5
+  %43 = or i32 %shl60, %lshrl57
+  %shl61 = shl i32 %43, 26
+  %ashr62 = ashr i32 %shl61, 26
+  call void (ptr, ...) @printf(ptr @.str.14, i32 %ashr55, i32 %ashr62)
+  %44 = load i8, ptr %xx, align 1
+  %zext63 = zext i8 %44 to i32
+  %lshrl64 = lshr i32 %zext63, 3
+  %ptradd65 = getelementptr inbounds i8, ptr %xx, i64 1
+  %45 = load i8, ptr %ptradd65, align 1
+  %zext66 = zext i8 %45 to i32
+  %shl67 = shl i32 %zext66, 5
+  %46 = or i32 %shl67, %lshrl64
+  %shl68 = shl i32 %46, 26
+  %ashr69 = ashr i32 %shl68, 26
+  %or = or i32 %ashr69, 4
+  %shl70 = shl i32 %or, 3
+  %trunc71 = trunc i32 %shl70 to i8
+  %47 = load i8, ptr %xx, align 1
+  %48 = and i8 %47, 7
+  %49 = or i8 %48, %trunc71
+  store i8 %49, ptr %xx, align 1
+  %lshrl72 = lshr i32 %or, 5
+  %ptradd73 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc74 = trunc i32 %lshrl72 to i8
+  %50 = and i8 %trunc74, 1
+  %51 = load i8, ptr %ptradd73, align 1
+  %52 = and i8 %51, -2
+  %53 = or i8 %52, %50
+  store i8 %52, ptr %ptradd73, align 1
+  %54 = load i8, ptr %xx, align 1
+  %zext75 = zext i8 %54 to i32
+  %shl76 = shl i32 %zext75, 29
+  %ashr77 = ashr i32 %shl76, 29
+  %55 = load i8, ptr %xx, align 1
+  %zext78 = zext i8 %55 to i32
+  %lshrl79 = lshr i32 %zext78, 3
+  %ptradd80 = getelementptr inbounds i8, ptr %xx, i64 1
+  %56 = load i8, ptr %ptradd80, align 1
+  %zext81 = zext i8 %56 to i32
+  %shl82 = shl i32 %zext81, 5
+  %57 = or i32 %shl82, %lshrl79
+  %shl83 = shl i32 %57, 26
+  %ashr84 = ashr i32 %shl83, 26
+  call void (ptr, ...) @printf(ptr @.str.15, i32 %ashr77, i32 %ashr84)
+  %58 = load i8, ptr %xx, align 1
+  %zext85 = zext i8 %58 to i32
+  %lshrl86 = lshr i32 %zext85, 3
+  %ptradd87 = getelementptr inbounds i8, ptr %xx, i64 1
+  %59 = load i8, ptr %ptradd87, align 1
+  %zext88 = zext i8 %59 to i32
+  %shl89 = shl i32 %zext88, 5
+  %60 = or i32 %shl89, %lshrl86
+  %shl90 = shl i32 %60, 26
+  %ashr91 = ashr i32 %shl90, 26
+  %shl92 = shl i32 %ashr91, 1
+  %61 = freeze i32 %shl92
+  %shl93 = shl i32 %61, 3
+  %trunc94 = trunc i32 %shl93 to i8
+  %62 = load i8, ptr %xx, align 1
+  %63 = and i8 %62, 7
+  %64 = or i8 %63, %trunc94
+  store i8 %64, ptr %xx, align 1
+  %lshrl95 = lshr i32 %61, 5
+  %ptradd96 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc97 = trunc i32 %lshrl95 to i8
+  %65 = and i8 %trunc97, 1
+  %66 = load i8, ptr %ptradd96, align 1
+  %67 = and i8 %66, -2
+  %68 = or i8 %67, %65
+  store i8 %67, ptr %ptradd96, align 1
+  %69 = load i8, ptr %xx, align 1
+  %zext98 = zext i8 %69 to i32
+  %shl99 = shl i32 %zext98, 29
+  %ashr100 = ashr i32 %shl99, 29
+  %70 = load i8, ptr %xx, align 1
+  %zext101 = zext i8 %70 to i32
+  %lshrl102 = lshr i32 %zext101, 3
+  %ptradd103 = getelementptr inbounds i8, ptr %xx, i64 1
+  %71 = load i8, ptr %ptradd103, align 1
+  %zext104 = zext i8 %71 to i32
+  %shl105 = shl i32 %zext104, 5
+  %72 = or i32 %shl105, %lshrl102
+  %shl106 = shl i32 %72, 26
+  %ashr107 = ashr i32 %shl106, 26
+  call void (ptr, ...) @printf(ptr @.str.16, i32 %ashr100, i32 %ashr107)
+  %73 = load i8, ptr %xx, align 1
+  %zext108 = zext i8 %73 to i32
+  %lshrl109 = lshr i32 %zext108, 3
+  %ptradd110 = getelementptr inbounds i8, ptr %xx, i64 1
+  %74 = load i8, ptr %ptradd110, align 1
+  %zext111 = zext i8 %74 to i32
+  %shl112 = shl i32 %zext111, 5
+  %75 = or i32 %shl112, %lshrl109
+  %shl113 = shl i32 %75, 26
+  %ashr114 = ashr i32 %shl113, 26
+  %ashr115 = ashr i32 %ashr114, 1
+  %76 = freeze i32 %ashr115
+  %shl116 = shl i32 %76, 3
+  %trunc117 = trunc i32 %shl116 to i8
+  %77 = load i8, ptr %xx, align 1
+  %78 = and i8 %77, 7
+  %79 = or i8 %78, %trunc117
+  store i8 %79, ptr %xx, align 1
+  %lshrl118 = lshr i32 %76, 5
+  %ptradd119 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc120 = trunc i32 %lshrl118 to i8
+  %80 = and i8 %trunc120, 1
+  %81 = load i8, ptr %ptradd119, align 1
+  %82 = and i8 %81, -2
+  %83 = or i8 %82, %80
+  store i8 %82, ptr %ptradd119, align 1
+  %84 = load i8, ptr %xx, align 1
+  %zext121 = zext i8 %84 to i32
+  %shl122 = shl i32 %zext121, 29
+  %ashr123 = ashr i32 %shl122, 29
+  %85 = load i8, ptr %xx, align 1
+  %zext124 = zext i8 %85 to i32
+  %lshrl125 = lshr i32 %zext124, 3
+  %ptradd126 = getelementptr inbounds i8, ptr %xx, i64 1
+  %86 = load i8, ptr %ptradd126, align 1
+  %zext127 = zext i8 %86 to i32
+  %shl128 = shl i32 %zext127, 5
+  %87 = or i32 %shl128, %lshrl125
+  %shl129 = shl i32 %87, 26
+  %ashr130 = ashr i32 %shl129, 26
+  call void (ptr, ...) @printf(ptr @.str.17, i32 %ashr123, i32 %ashr130)
+  %88 = load i8, ptr %xx, align 1
+  %zext131 = zext i8 %88 to i32
+  %lshrl132 = lshr i32 %zext131, 3
+  %ptradd133 = getelementptr inbounds i8, ptr %xx, i64 1
+  %89 = load i8, ptr %ptradd133, align 1
+  %zext134 = zext i8 %89 to i32
+  %shl135 = shl i32 %zext134, 5
+  %90 = or i32 %shl135, %lshrl132
+  %shl136 = shl i32 %90, 26
+  %ashr137 = ashr i32 %shl136, 26
+  %sdiv = sdiv i32 %ashr137, 2
+  %shl138 = shl i32 %sdiv, 3
+  %trunc139 = trunc i32 %shl138 to i8
+  %91 = load i8, ptr %xx, align 1
+  %92 = and i8 %91, 7
+  %93 = or i8 %92, %trunc139
+  store i8 %93, ptr %xx, align 1
+  %lshrl140 = lshr i32 %sdiv, 5
+  %ptradd141 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc142 = trunc i32 %lshrl140 to i8
+  %94 = and i8 %trunc142, 1
+  %95 = load i8, ptr %ptradd141, align 1
+  %96 = and i8 %95, -2
+  %97 = or i8 %96, %94
+  store i8 %96, ptr %ptradd141, align 1
+  %98 = load i8, ptr %xx, align 1
+  %zext143 = zext i8 %98 to i32
+  %shl144 = shl i32 %zext143, 29
+  %ashr145 = ashr i32 %shl144, 29
+  %99 = load i8, ptr %xx, align 1
+  %zext146 = zext i8 %99 to i32
+  %lshrl147 = lshr i32 %zext146, 3
+  %ptradd148 = getelementptr inbounds i8, ptr %xx, i64 1
+  %100 = load i8, ptr %ptradd148, align 1
+  %zext149 = zext i8 %100 to i32
+  %shl150 = shl i32 %zext149, 5
+  %101 = or i32 %shl150, %lshrl147
+  %shl151 = shl i32 %101, 26
+  %ashr152 = ashr i32 %shl151, 26
+  call void (ptr, ...) @printf(ptr @.str.18, i32 %ashr145, i32 %ashr152)
+  %102 = load i8, ptr %xx, align 1
+  %zext153 = zext i8 %102 to i32
+  %lshrl154 = lshr i32 %zext153, 3
+  %ptradd155 = getelementptr inbounds i8, ptr %xx, i64 1
+  %103 = load i8, ptr %ptradd155, align 1
+  %zext156 = zext i8 %103 to i32
+  %shl157 = shl i32 %zext156, 5
+  %104 = or i32 %shl157, %lshrl154
+  %shl158 = shl i32 %104, 26
+  %ashr159 = ashr i32 %shl158, 26
+  %smod = srem i32 %ashr159, 2
+  %shl160 = shl i32 %smod, 3
+  %trunc161 = trunc i32 %shl160 to i8
+  %105 = load i8, ptr %xx, align 1
+  %106 = and i8 %105, 7
+  %107 = or i8 %106, %trunc161
+  store i8 %107, ptr %xx, align 1
+  %lshrl162 = lshr i32 %smod, 5
+  %ptradd163 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc164 = trunc i32 %lshrl162 to i8
+  %108 = and i8 %trunc164, 1
+  %109 = load i8, ptr %ptradd163, align 1
+  %110 = and i8 %109, -2
+  %111 = or i8 %110, %108
+  store i8 %110, ptr %ptradd163, align 1
+  %112 = load i8, ptr %xx, align 1
+  %zext165 = zext i8 %112 to i32
+  %shl166 = shl i32 %zext165, 29
+  %ashr167 = ashr i32 %shl166, 29
+  %113 = load i8, ptr %xx, align 1
+  %zext168 = zext i8 %113 to i32
+  %lshrl169 = lshr i32 %zext168, 3
+  %ptradd170 = getelementptr inbounds i8, ptr %xx, i64 1
+  %114 = load i8, ptr %ptradd170, align 1
+  %zext171 = zext i8 %114 to i32
+  %shl172 = shl i32 %zext171, 5
+  %115 = or i32 %shl172, %lshrl169
+  %shl173 = shl i32 %115, 26
+  %ashr174 = ashr i32 %shl173, 26
+  call void (ptr, ...) @printf(ptr @.str.19, i32 %ashr167, i32 %ashr174)
+  %ptradd175 = getelementptr inbounds i8, ptr %xx, i64 2
+  %116 = load i8, ptr %ptradd175, align 1
+  %lshrl176 = lshr i8 %116, 4
+  %117 = trunc i8 %lshrl176 to i1
+  %zext177 = zext i1 %117 to i32
+  call void (ptr, ...) @printf(ptr @.str.20, i32 %zext177)
+  %ptradd178 = getelementptr inbounds i8, ptr %xx, i64 2
+  %118 = load i8, ptr %ptradd178, align 1
+  %119 = and i8 %118, -17
+  %120 = or i8 %119, 16
+  store i8 %120, ptr %ptradd178, align 1
+  %ptradd179 = getelementptr inbounds i8, ptr %xx, i64 2
+  %121 = load i8, ptr %ptradd179, align 1
+  %lshrl180 = lshr i8 %121, 4
+  %122 = trunc i8 %lshrl180 to i1
+  %zext181 = zext i1 %122 to i32
+  call void (ptr, ...) @printf(ptr @.str.21, i32 %zext181)
+  %ptradd182 = getelementptr inbounds i8, ptr %xx, i64 2
+  %123 = load i8, ptr %ptradd182, align 1
+  %124 = and i8 %123, -17
+  store i8 %124, ptr %ptradd182, align 1
+  %ptradd183 = getelementptr inbounds i8, ptr %xx, i64 2
+  %125 = load i8, ptr %ptradd183, align 1
+  %lshrl184 = lshr i8 %125, 4
+  %126 = trunc i8 %lshrl184 to i1
+  %zext185 = zext i1 %126 to i32
+  call void (ptr, ...) @printf(ptr @.str.22, i32 %zext185)
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test3() #0 {
+entry:
+  %xx = alloca [3 x i8], align 1
+  store [3 x i8] c"4<\00", ptr %xx, align 1
+  %0 = load i8, ptr %xx, align 1
+  %1 = and i8 %0, -15
+  %2 = or i8 %1, 6
+  store i8 %2, ptr %xx, align 1
+  %3 = load i8, ptr %xx, align 1
+  %zext = zext i8 %3 to i32
+  %lshrl = lshr i32 %zext, 1
+  %shl = shl i32 %lshrl, 29
+  %ashr = ashr i32 %shl, 29
+  %4 = load i8, ptr %xx, align 1
+  %zext1 = zext i8 %4 to i32
+  %lshrl2 = lshr i32 %zext1, 4
+  %ptradd = getelementptr inbounds i8, ptr %xx, i64 1
+  %5 = load i8, ptr %ptradd, align 1
+  %zext3 = zext i8 %5 to i32
+  %shl4 = shl i32 %zext3, 4
+  %6 = or i32 %shl4, %lshrl2
+  %shl5 = shl i32 %6, 26
+  %ashr6 = ashr i32 %shl5, 26
+  call void (ptr, ...) @printf(ptr @.str.23, i32 %ashr, i32 %ashr6)
+  %7 = load i8, ptr %xx, align 1
+  %zext7 = zext i8 %7 to i32
+  %lshrl8 = lshr i32 %zext7, 1
+  %shl9 = shl i32 %lshrl8, 29
+  %ashr10 = ashr i32 %shl9, 29
+  %sub = sub i32 %ashr10, 1
+  %shl11 = shl i32 %sub, 1
+  %trunc = trunc i32 %shl11 to i8
+  %8 = and i8 %trunc, 15
+  %9 = load i8, ptr %xx, align 1
+  %10 = and i8 %9, -15
+  %11 = or i8 %10, %8
+  store i8 %11, ptr %xx, align 1
+  %lshrl12 = lshr i32 %sub, 7
+  %12 = load i8, ptr %xx, align 1
+  %zext13 = zext i8 %12 to i32
+  %lshrl14 = lshr i32 %zext13, 1
+  %shl15 = shl i32 %lshrl14, 29
+  %ashr16 = ashr i32 %shl15, 29
+  %13 = load i8, ptr %xx, align 1
+  %zext17 = zext i8 %13 to i32
+  %lshrl18 = lshr i32 %zext17, 4
+  %ptradd19 = getelementptr inbounds i8, ptr %xx, i64 1
+  %14 = load i8, ptr %ptradd19, align 1
+  %zext20 = zext i8 %14 to i32
+  %shl21 = shl i32 %zext20, 4
+  %15 = or i32 %shl21, %lshrl18
+  %shl22 = shl i32 %15, 26
+  %ashr23 = ashr i32 %shl22, 26
+  call void (ptr, ...) @printf(ptr @.str.24, i32 %ashr16, i32 %ashr23)
+  %16 = load i8, ptr %xx, align 1
+  %zext24 = zext i8 %16 to i32
+  %lshrl25 = lshr i32 %zext24, 4
+  %ptradd26 = getelementptr inbounds i8, ptr %xx, i64 1
+  %17 = load i8, ptr %ptradd26, align 1
+  %zext27 = zext i8 %17 to i32
+  %shl28 = shl i32 %zext27, 4
+  %18 = or i32 %shl28, %lshrl25
+  %shl29 = shl i32 %18, 26
+  %ashr30 = ashr i32 %shl29, 26
+  %mul = mul i32 %ashr30, 2
+  %shl31 = shl i32 %mul, 4
+  %trunc32 = trunc i32 %shl31 to i8
+  %19 = load i8, ptr %xx, align 1
+  %20 = and i8 %19, 15
+  %21 = or i8 %20, %trunc32
+  store i8 %21, ptr %xx, align 1
+  %lshrl33 = lshr i32 %mul, 4
+  %ptradd34 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc35 = trunc i32 %lshrl33 to i8
+  %22 = and i8 %trunc35, 3
+  %23 = load i8, ptr %ptradd34, align 1
+  %24 = and i8 %23, -4
+  %25 = or i8 %24, %22
+  store i8 %24, ptr %ptradd34, align 1
+  %26 = load i8, ptr %xx, align 1
+  %zext36 = zext i8 %26 to i32
+  %lshrl37 = lshr i32 %zext36, 1
+  %shl38 = shl i32 %lshrl37, 29
+  %ashr39 = ashr i32 %shl38, 29
+  %27 = load i8, ptr %xx, align 1
+  %zext40 = zext i8 %27 to i32
+  %lshrl41 = lshr i32 %zext40, 4
+  %ptradd42 = getelementptr inbounds i8, ptr %xx, i64 1
+  %28 = load i8, ptr %ptradd42, align 1
+  %zext43 = zext i8 %28 to i32
+  %shl44 = shl i32 %zext43, 4
+  %29 = or i32 %shl44, %lshrl41
+  %shl45 = shl i32 %29, 26
+  %ashr46 = ashr i32 %shl45, 26
+  call void (ptr, ...) @printf(ptr @.str.25, i32 %ashr39, i32 %ashr46)
+  %30 = load i8, ptr %xx, align 1
+  %zext47 = zext i8 %30 to i32
+  %lshrl48 = lshr i32 %zext47, 4
+  %ptradd49 = getelementptr inbounds i8, ptr %xx, i64 1
+  %31 = load i8, ptr %ptradd49, align 1
+  %zext50 = zext i8 %31 to i32
+  %shl51 = shl i32 %zext50, 4
+  %32 = or i32 %shl51, %lshrl48
+  %shl52 = shl i32 %32, 26
+  %ashr53 = ashr i32 %shl52, 26
+  %xor = xor i32 %ashr53, 4
+  %shl54 = shl i32 %xor, 4
+  %trunc55 = trunc i32 %shl54 to i8
+  %33 = load i8, ptr %xx, align 1
+  %34 = and i8 %33, 15
+  %35 = or i8 %34, %trunc55
+  store i8 %35, ptr %xx, align 1
+  %lshrl56 = lshr i32 %xor, 4
+  %ptradd57 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc58 = trunc i32 %lshrl56 to i8
+  %36 = and i8 %trunc58, 3
+  %37 = load i8, ptr %ptradd57, align 1
+  %38 = and i8 %37, -4
+  %39 = or i8 %38, %36
+  store i8 %38, ptr %ptradd57, align 1
+  %40 = load i8, ptr %xx, align 1
+  %zext59 = zext i8 %40 to i32
+  %lshrl60 = lshr i32 %zext59, 1
+  %shl61 = shl i32 %lshrl60, 29
+  %ashr62 = ashr i32 %shl61, 29
+  %41 = load i8, ptr %xx, align 1
+  %zext63 = zext i8 %41 to i32
+  %lshrl64 = lshr i32 %zext63, 4
+  %ptradd65 = getelementptr inbounds i8, ptr %xx, i64 1
+  %42 = load i8, ptr %ptradd65, align 1
+  %zext66 = zext i8 %42 to i32
+  %shl67 = shl i32 %zext66, 4
+  %43 = or i32 %shl67, %lshrl64
+  %shl68 = shl i32 %43, 26
+  %ashr69 = ashr i32 %shl68, 26
+  call void (ptr, ...) @printf(ptr @.str.26, i32 %ashr62, i32 %ashr69)
+  %44 = load i8, ptr %xx, align 1
+  %zext70 = zext i8 %44 to i32
+  %lshrl71 = lshr i32 %zext70, 4
+  %ptradd72 = getelementptr inbounds i8, ptr %xx, i64 1
+  %45 = load i8, ptr %ptradd72, align 1
+  %zext73 = zext i8 %45 to i32
+  %shl74 = shl i32 %zext73, 4
+  %46 = or i32 %shl74, %lshrl71
+  %shl75 = shl i32 %46, 26
+  %ashr76 = ashr i32 %shl75, 26
+  %or = or i32 %ashr76, 4
+  %shl77 = shl i32 %or, 4
+  %trunc78 = trunc i32 %shl77 to i8
+  %47 = load i8, ptr %xx, align 1
+  %48 = and i8 %47, 15
+  %49 = or i8 %48, %trunc78
+  store i8 %49, ptr %xx, align 1
+  %lshrl79 = lshr i32 %or, 4
+  %ptradd80 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc81 = trunc i32 %lshrl79 to i8
+  %50 = and i8 %trunc81, 3
+  %51 = load i8, ptr %ptradd80, align 1
+  %52 = and i8 %51, -4
+  %53 = or i8 %52, %50
+  store i8 %52, ptr %ptradd80, align 1
+  %54 = load i8, ptr %xx, align 1
+  %zext82 = zext i8 %54 to i32
+  %lshrl83 = lshr i32 %zext82, 1
+  %shl84 = shl i32 %lshrl83, 29
+  %ashr85 = ashr i32 %shl84, 29
+  %55 = load i8, ptr %xx, align 1
+  %zext86 = zext i8 %55 to i32
+  %lshrl87 = lshr i32 %zext86, 4
+  %ptradd88 = getelementptr inbounds i8, ptr %xx, i64 1
+  %56 = load i8, ptr %ptradd88, align 1
+  %zext89 = zext i8 %56 to i32
+  %shl90 = shl i32 %zext89, 4
+  %57 = or i32 %shl90, %lshrl87
+  %shl91 = shl i32 %57, 26
+  %ashr92 = ashr i32 %shl91, 26
+  call void (ptr, ...) @printf(ptr @.str.27, i32 %ashr85, i32 %ashr92)
+  %58 = load i8, ptr %xx, align 1
+  %zext93 = zext i8 %58 to i32
+  %lshrl94 = lshr i32 %zext93, 4
+  %ptradd95 = getelementptr inbounds i8, ptr %xx, i64 1
+  %59 = load i8, ptr %ptradd95, align 1
+  %zext96 = zext i8 %59 to i32
+  %shl97 = shl i32 %zext96, 4
+  %60 = or i32 %shl97, %lshrl94
+  %shl98 = shl i32 %60, 26
+  %ashr99 = ashr i32 %shl98, 26
+  %shl100 = shl i32 %ashr99, 1
+  %61 = freeze i32 %shl100
+  %shl101 = shl i32 %61, 4
+  %trunc102 = trunc i32 %shl101 to i8
+  %62 = load i8, ptr %xx, align 1
+  %63 = and i8 %62, 15
+  %64 = or i8 %63, %trunc102
+  store i8 %64, ptr %xx, align 1
+  %lshrl103 = lshr i32 %61, 4
+  %ptradd104 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc105 = trunc i32 %lshrl103 to i8
+  %65 = and i8 %trunc105, 3
+  %66 = load i8, ptr %ptradd104, align 1
+  %67 = and i8 %66, -4
+  %68 = or i8 %67, %65
+  store i8 %67, ptr %ptradd104, align 1
+  %69 = load i8, ptr %xx, align 1
+  %zext106 = zext i8 %69 to i32
+  %lshrl107 = lshr i32 %zext106, 1
+  %shl108 = shl i32 %lshrl107, 29
+  %ashr109 = ashr i32 %shl108, 29
+  %70 = load i8, ptr %xx, align 1
+  %zext110 = zext i8 %70 to i32
+  %lshrl111 = lshr i32 %zext110, 4
+  %ptradd112 = getelementptr inbounds i8, ptr %xx, i64 1
+  %71 = load i8, ptr %ptradd112, align 1
+  %zext113 = zext i8 %71 to i32
+  %shl114 = shl i32 %zext113, 4
+  %72 = or i32 %shl114, %lshrl111
+  %shl115 = shl i32 %72, 26
+  %ashr116 = ashr i32 %shl115, 26
+  call void (ptr, ...) @printf(ptr @.str.28, i32 %ashr109, i32 %ashr116)
+  %73 = load i8, ptr %xx, align 1
+  %zext117 = zext i8 %73 to i32
+  %lshrl118 = lshr i32 %zext117, 4
+  %ptradd119 = getelementptr inbounds i8, ptr %xx, i64 1
+  %74 = load i8, ptr %ptradd119, align 1
+  %zext120 = zext i8 %74 to i32
+  %shl121 = shl i32 %zext120, 4
+  %75 = or i32 %shl121, %lshrl118
+  %shl122 = shl i32 %75, 26
+  %ashr123 = ashr i32 %shl122, 26
+  %ashr124 = ashr i32 %ashr123, 1
+  %76 = freeze i32 %ashr124
+  %shl125 = shl i32 %76, 4
+  %trunc126 = trunc i32 %shl125 to i8
+  %77 = load i8, ptr %xx, align 1
+  %78 = and i8 %77, 15
+  %79 = or i8 %78, %trunc126
+  store i8 %79, ptr %xx, align 1
+  %lshrl127 = lshr i32 %76, 4
+  %ptradd128 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc129 = trunc i32 %lshrl127 to i8
+  %80 = and i8 %trunc129, 3
+  %81 = load i8, ptr %ptradd128, align 1
+  %82 = and i8 %81, -4
+  %83 = or i8 %82, %80
+  store i8 %82, ptr %ptradd128, align 1
+  %84 = load i8, ptr %xx, align 1
+  %zext130 = zext i8 %84 to i32
+  %lshrl131 = lshr i32 %zext130, 1
+  %shl132 = shl i32 %lshrl131, 29
+  %ashr133 = ashr i32 %shl132, 29
+  %85 = load i8, ptr %xx, align 1
+  %zext134 = zext i8 %85 to i32
+  %lshrl135 = lshr i32 %zext134, 4
+  %ptradd136 = getelementptr inbounds i8, ptr %xx, i64 1
+  %86 = load i8, ptr %ptradd136, align 1
+  %zext137 = zext i8 %86 to i32
+  %shl138 = shl i32 %zext137, 4
+  %87 = or i32 %shl138, %lshrl135
+  %shl139 = shl i32 %87, 26
+  %ashr140 = ashr i32 %shl139, 26
+  call void (ptr, ...) @printf(ptr @.str.29, i32 %ashr133, i32 %ashr140)
+  %88 = load i8, ptr %xx, align 1
+  %zext141 = zext i8 %88 to i32
+  %lshrl142 = lshr i32 %zext141, 4
+  %ptradd143 = getelementptr inbounds i8, ptr %xx, i64 1
+  %89 = load i8, ptr %ptradd143, align 1
+  %zext144 = zext i8 %89 to i32
+  %shl145 = shl i32 %zext144, 4
+  %90 = or i32 %shl145, %lshrl142
+  %shl146 = shl i32 %90, 26
+  %ashr147 = ashr i32 %shl146, 26
+  %sdiv = sdiv i32 %ashr147, 2
+  %shl148 = shl i32 %sdiv, 4
+  %trunc149 = trunc i32 %shl148 to i8
+  %91 = load i8, ptr %xx, align 1
+  %92 = and i8 %91, 15
+  %93 = or i8 %92, %trunc149
+  store i8 %93, ptr %xx, align 1
+  %lshrl150 = lshr i32 %sdiv, 4
+  %ptradd151 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc152 = trunc i32 %lshrl150 to i8
+  %94 = and i8 %trunc152, 3
+  %95 = load i8, ptr %ptradd151, align 1
+  %96 = and i8 %95, -4
+  %97 = or i8 %96, %94
+  store i8 %96, ptr %ptradd151, align 1
+  %98 = load i8, ptr %xx, align 1
+  %zext153 = zext i8 %98 to i32
+  %lshrl154 = lshr i32 %zext153, 1
+  %shl155 = shl i32 %lshrl154, 29
+  %ashr156 = ashr i32 %shl155, 29
+  %99 = load i8, ptr %xx, align 1
+  %zext157 = zext i8 %99 to i32
+  %lshrl158 = lshr i32 %zext157, 4
+  %ptradd159 = getelementptr inbounds i8, ptr %xx, i64 1
+  %100 = load i8, ptr %ptradd159, align 1
+  %zext160 = zext i8 %100 to i32
+  %shl161 = shl i32 %zext160, 4
+  %101 = or i32 %shl161, %lshrl158
+  %shl162 = shl i32 %101, 26
+  %ashr163 = ashr i32 %shl162, 26
+  call void (ptr, ...) @printf(ptr @.str.30, i32 %ashr156, i32 %ashr163)
+  %102 = load i8, ptr %xx, align 1
+  %zext164 = zext i8 %102 to i32
+  %lshrl165 = lshr i32 %zext164, 4
+  %ptradd166 = getelementptr inbounds i8, ptr %xx, i64 1
+  %103 = load i8, ptr %ptradd166, align 1
+  %zext167 = zext i8 %103 to i32
+  %shl168 = shl i32 %zext167, 4
+  %104 = or i32 %shl168, %lshrl165
+  %shl169 = shl i32 %104, 26
+  %ashr170 = ashr i32 %shl169, 26
+  %smod = srem i32 %ashr170, 2
+  %shl171 = shl i32 %smod, 4
+  %trunc172 = trunc i32 %shl171 to i8
+  %105 = load i8, ptr %xx, align 1
+  %106 = and i8 %105, 15
+  %107 = or i8 %106, %trunc172
+  store i8 %107, ptr %xx, align 1
+  %lshrl173 = lshr i32 %smod, 4
+  %ptradd174 = getelementptr inbounds i8, ptr %xx, i64 1
+  %trunc175 = trunc i32 %lshrl173 to i8
+  %108 = and i8 %trunc175, 3
+  %109 = load i8, ptr %ptradd174, align 1
+  %110 = and i8 %109, -4
+  %111 = or i8 %110, %108
+  store i8 %110, ptr %ptradd174, align 1
+  %112 = load i8, ptr %xx, align 1
+  %zext176 = zext i8 %112 to i32
+  %lshrl177 = lshr i32 %zext176, 1
+  %shl178 = shl i32 %lshrl177, 29
+  %ashr179 = ashr i32 %shl178, 29
+  %113 = load i8, ptr %xx, align 1
+  %zext180 = zext i8 %113 to i32
+  %lshrl181 = lshr i32 %zext180, 4
+  %ptradd182 = getelementptr inbounds i8, ptr %xx, i64 1
+  %114 = load i8, ptr %ptradd182, align 1
+  %zext183 = zext i8 %114 to i32
+  %shl184 = shl i32 %zext183, 4
+  %115 = or i32 %shl184, %lshrl181
+  %shl185 = shl i32 %115, 26
+  %ashr186 = ashr i32 %shl185, 26
+  call void (ptr, ...) @printf(ptr @.str.31, i32 %ashr179, i32 %ashr186)
+  %ptradd187 = getelementptr inbounds i8, ptr %xx, i64 2
+  %116 = load i8, ptr %ptradd187, align 1
+  %lshrl188 = lshr i8 %116, 5
+  %117 = trunc i8 %lshrl188 to i1
+  %zext189 = zext i1 %117 to i32
+  call void (ptr, ...) @printf(ptr @.str.32, i32 %zext189)
+  %ptradd190 = getelementptr inbounds i8, ptr %xx, i64 2
+  %118 = load i8, ptr %ptradd190, align 1
+  %119 = and i8 %118, -33
+  %120 = or i8 %119, 32
+  store i8 %120, ptr %ptradd190, align 1
+  %ptradd191 = getelementptr inbounds i8, ptr %xx, i64 2
+  %121 = load i8, ptr %ptradd191, align 1
+  %lshrl192 = lshr i8 %121, 5
+  %122 = trunc i8 %lshrl192 to i1
+  %zext193 = zext i1 %122 to i32
+  call void (ptr, ...) @printf(ptr @.str.33, i32 %zext193)
+  %ptradd194 = getelementptr inbounds i8, ptr %xx, i64 2
+  %123 = load i8, ptr %ptradd194, align 1
+  %124 = and i8 %123, -33
+  store i8 %124, ptr %ptradd194, align 1
+  %ptradd195 = getelementptr inbounds i8, ptr %xx, i64 2
+  %125 = load i8, ptr %ptradd195, align 1
+  %lshrl196 = lshr i8 %125, 5
+  %126 = trunc i8 %lshrl196 to i1
+  %zext197 = zext i1 %126 to i32
+  call void (ptr, ...) @printf(ptr @.str.34, i32 %zext197)
+  ret void
+}
diff --git a/test/test_suite7/bitstruct/bitstruct_arrays_be.c3t b/test/test_suite7/bitstruct/bitstruct_arrays_be.c3t
new file mode 100644
index 000000000..5d86abd7c
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_arrays_be.c3t
@@ -0,0 +1,138 @@
+// #target: macos-x64
+module foo;
+
+module foo;
+
+bitstruct BitField3 : char[4] @bigendian
+{
+    uint c : 4..19;
+}
+
+bitstruct BitField4 : char[4]
+{
+    uint c : 4..19;
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    test3();
+}
+fn void test3()
+{
+    //BitField3 xx = { 0xdeadbeef };
+    BitField3 xx = { 0xbeaf };
+    printf("%x = beaf\n", xx.c);
+    BitField4 xy = { 0xbeaf };
+    void *abc = &xy;
+    char[4]* z = abc;
+    printf("%x = beaf\n", xy.c);
+    xy.c = 0xbeef;
+    printf("%x = beef\n", xy.c);
+    xx.c = 0xbeef;
+    printf("%x = beef\n", xx.c);
+}
+
+
+/* #expect: foo.ll
+
+define void @foo.test3() #0 {
+entry:
+  %xx = alloca [4 x i8], align 1
+  %xy = alloca [4 x i8], align 1
+  %abc = alloca ptr, align 8
+  %z = alloca ptr, align 8
+  store [4 x i8] c"\E0\FB\0A\00", ptr %xx, align 1
+  %0 = load i8, ptr %xx, align 1
+  %zext = zext i8 %0 to i32
+  %lshrl = lshr i32 %zext, 4
+  %ptradd = getelementptr inbounds i8, ptr %xx, i64 1
+  %1 = load i8, ptr %ptradd, align 1
+  %zext1 = zext i8 %1 to i32
+  %shl = shl i32 %zext1, 4
+  %2 = or i32 %shl, %lshrl
+  %ptradd2 = getelementptr inbounds i8, ptr %xx, i64 2
+  %3 = load i8, ptr %ptradd2, align 1
+  %zext3 = zext i8 %3 to i32
+  %shl4 = shl i32 %zext3, 12
+  %4 = or i32 %shl4, %2
+  %shl5 = shl i32 %4, 16
+  %5 = call i32 @llvm.bswap.i32(i32 %shl5)
+  %6 = and i32 65535, %5
+  call void (ptr, ...) @printf(ptr @.str, i32 %6)
+  store [4 x i8] c"\F0\EA\0B\00", ptr %xy, align 1
+  store ptr %xy, ptr %abc, align 8
+  %7 = load ptr, ptr %abc, align 8
+  store ptr %7, ptr %z, align 8
+  %8 = load i8, ptr %xy, align 1
+  %zext6 = zext i8 %8 to i32
+  %lshrl7 = lshr i32 %zext6, 4
+  %ptradd8 = getelementptr inbounds i8, ptr %xy, i64 1
+  %9 = load i8, ptr %ptradd8, align 1
+  %zext9 = zext i8 %9 to i32
+  %shl10 = shl i32 %zext9, 4
+  %10 = or i32 %shl10, %lshrl7
+  %ptradd11 = getelementptr inbounds i8, ptr %xy, i64 2
+  %11 = load i8, ptr %ptradd11, align 1
+  %zext12 = zext i8 %11 to i32
+  %shl13 = shl i32 %zext12, 12
+  %12 = or i32 %shl13, %10
+  %13 = and i32 65535, %12
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %13)
+  %14 = load i8, ptr %xy, align 1
+  %15 = and i8 %14, 15
+  %16 = or i8 %15, -16
+  store i8 %16, ptr %xy, align 1
+  %ptradd14 = getelementptr inbounds i8, ptr %xy, i64 1
+  store i8 -18, ptr %ptradd14, align 1
+  %ptradd15 = getelementptr inbounds i8, ptr %xy, i64 2
+  %17 = load i8, ptr %ptradd15, align 1
+  %18 = and i8 %17, -16
+  %19 = or i8 %18, 11
+  store i8 %18, ptr %ptradd15, align 1
+  %20 = load i8, ptr %xy, align 1
+  %zext16 = zext i8 %20 to i32
+  %lshrl17 = lshr i32 %zext16, 4
+  %ptradd18 = getelementptr inbounds i8, ptr %xy, i64 1
+  %21 = load i8, ptr %ptradd18, align 1
+  %zext19 = zext i8 %21 to i32
+  %shl20 = shl i32 %zext19, 4
+  %22 = or i32 %shl20, %lshrl17
+  %ptradd21 = getelementptr inbounds i8, ptr %xy, i64 2
+  %23 = load i8, ptr %ptradd21, align 1
+  %zext22 = zext i8 %23 to i32
+  %shl23 = shl i32 %zext22, 12
+  %24 = or i32 %shl23, %22
+  %25 = and i32 65535, %24
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %25)
+  %26 = load i8, ptr %xx, align 1
+  %27 = and i8 %26, 15
+  %28 = or i8 %27, -32
+  store i8 %28, ptr %xx, align 1
+  %ptradd24 = getelementptr inbounds i8, ptr %xx, i64 1
+  store i8 -5, ptr %ptradd24, align 1
+  %ptradd25 = getelementptr inbounds i8, ptr %xx, i64 2
+  %29 = load i8, ptr %ptradd25, align 1
+  %30 = and i8 %29, -16
+  %31 = or i8 %30, 14
+  store i8 %30, ptr %ptradd25, align 1
+  %32 = load i8, ptr %xx, align 1
+  %zext26 = zext i8 %32 to i32
+  %lshrl27 = lshr i32 %zext26, 4
+  %ptradd28 = getelementptr inbounds i8, ptr %xx, i64 1
+  %33 = load i8, ptr %ptradd28, align 1
+  %zext29 = zext i8 %33 to i32
+  %shl30 = shl i32 %zext29, 4
+  %34 = or i32 %shl30, %lshrl27
+  %ptradd31 = getelementptr inbounds i8, ptr %xx, i64 2
+  %35 = load i8, ptr %ptradd31, align 1
+  %zext32 = zext i8 %35 to i32
+  %shl33 = shl i32 %zext32, 12
+  %36 = or i32 %shl33, %34
+  %shl34 = shl i32 %36, 16
+  %37 = call i32 @llvm.bswap.i32(i32 %shl34)
+  %38 = and i32 65535, %37
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %38)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_be.c3t b/test/test_suite7/bitstruct/bitstruct_be.c3t
new file mode 100644
index 000000000..5e20ec6eb
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_be.c3t
@@ -0,0 +1,348 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+bitstruct Test : int @bigendian
+{
+	ushort a : 0..15;
+	ushort b : 16..31;
+}
+
+bitstruct Test2 : char[4] @bigendian
+{
+	ushort a : 0..15;
+	ushort b : 16..31;
+}
+
+fn void main()
+{
+	IntBE x;
+	x.val = 123;
+
+	io::printf("BE 123 => %d (%d)\n", (int)x, x.val);
+	Test abc = { .a = 0x1234, .b = 0x5678 };
+	Test2 abc2 = { .a = 0x1234, .b = 0x5678 };
+	char[4]* z = (char[4]*)&abc;
+	char[4]* z2 = (char[4]*)&abc2;
+	foreach (d : z2) io::printf(" %x", d);
+	io::printn("");
+	foreach (d : z) io::printf(" %x", d);
+	io::printn("");
+	io::printfn("abc.a = %x", abc.a);
+	abc.a = 0x1234;
+	abc.b = 0x5678;
+	io::printfn("->abc.a = %x", abc.a);
+	foreach (d : z) io::printf(" %x", d);
+	io::printn("");
+
+	IntLE y;
+	y.val = 123;
+	io::printf("LE 123 => %d (%d)\n", (int)y, y.val);
+
+}
+
+/* #expect: test.ll
+
+  %0 = load i32, ptr %x, align 4
+  %1 = call i32 @llvm.bswap.i32(i32 %0)
+  store i32 2063597568, ptr %x, align 4
+  %2 = insertvalue %any undef, ptr %x, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %3, ptr %varargslots, align 16
+  %4 = load i32, ptr %x, align 4
+  %5 = call i32 @llvm.bswap.i32(i32 %4)
+  store i32 %5, ptr %taddr, align 4
+  %6 = insertvalue %any undef, ptr %taddr, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %7, ptr %ptradd, align 16
+  %8 = call i64 @std.io.printf(ptr %retparam, ptr @.str, i64 18, ptr %varargslots, i64 2)
+  store i32 873625686, ptr %abc, align 4
+  store [4 x i8] c"\124Vx", ptr %abc2, align 1
+  store ptr %abc, ptr %z, align 8
+  store ptr %abc2, ptr %z2, align 8
+  %9 = load ptr, ptr %z2, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %10 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 4, %10
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %11 = load i64, ptr %.anon, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %9, i64 %11
+  %12 = load i8, ptr %ptradd1, align 1
+  store i8 %12, ptr %d, align 1
+  %13 = insertvalue %any undef, ptr %d, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %14, ptr %varargslots2, align 16
+  %15 = call i64 @std.io.printf(ptr %retparam3, ptr @.str.1, i64 3, ptr %varargslots2, i64 1)
+  %16 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %16, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %17 = call ptr @std.io.stdout()
+  %18 = call i64 @std.io.File.write(ptr %retparam5, ptr %17, ptr null, i64 0)
+  %not_err = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %19, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %loop.exit
+  store i64 %18, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %loop.exit
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %20 = load i64, ptr %retparam5, align 8
+  store i64 %20, ptr %len, align 8
+  %21 = call i64 @std.io.File.write_byte(ptr %17, i8 zeroext 10)
+  %not_err7 = icmp eq i64 %21, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err7, i1 true)
+  br i1 %22, label %after_check9, label %assign_optional8
+
+assign_optional8:                                 ; preds = %noerr_block
+  store i64 %21, ptr %error_var6, align 8
+  br label %guard_block10
+
+after_check9:                                     ; preds = %noerr_block
+  br label %noerr_block11
+
+guard_block10:                                    ; preds = %assign_optional8
+  br label %voiderr
+
+noerr_block11:                                    ; preds = %after_check9
+  %23 = call i64 @std.io.File.flush(ptr %17)
+  %not_err13 = icmp eq i64 %23, 0
+  %24 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
+  br i1 %24, label %after_check15, label %assign_optional14
+
+assign_optional14:                                ; preds = %noerr_block11
+  store i64 %23, ptr %error_var12, align 8
+  br label %guard_block16
+
+after_check15:                                    ; preds = %noerr_block11
+  br label %noerr_block17
+
+guard_block16:                                    ; preds = %assign_optional14
+  br label %voiderr
+
+noerr_block17:                                    ; preds = %after_check15
+  %25 = load i64, ptr %len, align 8
+  %add = add i64 %25, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block17, %guard_block16, %guard_block10, %guard_block
+  %26 = load ptr, ptr %z, align 8
+  store i64 0, ptr %.anon18, align 8
+  br label %loop.cond19
+
+loop.cond19:                                      ; preds = %loop.body21, %voiderr
+  %27 = load i64, ptr %.anon18, align 8
+  %gt20 = icmp ugt i64 4, %27
+  br i1 %gt20, label %loop.body21, label %loop.exit29
+
+loop.body21:                                      ; preds = %loop.cond19
+  %28 = load i64, ptr %.anon18, align 8
+  %ptradd23 = getelementptr inbounds i8, ptr %26, i64 %28
+  %29 = load i8, ptr %ptradd23, align 1
+  store i8 %29, ptr %d22, align 1
+  %30 = insertvalue %any undef, ptr %d22, 0
+  %31 = insertvalue %any %30, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %31, ptr %varargslots24, align 16
+  %32 = call i64 @std.io.printf(ptr %retparam25, ptr @.str.2, i64 3, ptr %varargslots24, i64 1)
+  %33 = load i64, ptr %.anon18, align 8
+  %addnuw28 = add nuw i64 %33, 1
+  store i64 %addnuw28, ptr %.anon18, align 8
+  br label %loop.cond19
+
+loop.exit29:                                      ; preds = %loop.cond19
+  %34 = call ptr @std.io.stdout()
+  %35 = call i64 @std.io.File.write(ptr %retparam33, ptr %34, ptr null, i64 0)
+  %not_err34 = icmp eq i64 %35, 0
+  %36 = call i1 @llvm.expect.i1(i1 %not_err34, i1 true)
+  br i1 %36, label %after_check36, label %assign_optional35
+
+assign_optional35:                                ; preds = %loop.exit29
+  store i64 %35, ptr %error_var31, align 8
+  br label %guard_block37
+
+after_check36:                                    ; preds = %loop.exit29
+  br label %noerr_block38
+
+guard_block37:                                    ; preds = %assign_optional35
+  br label %voiderr52
+
+noerr_block38:                                    ; preds = %after_check36
+  %37 = load i64, ptr %retparam33, align 8
+  store i64 %37, ptr %len30, align 8
+  %38 = call i64 @std.io.File.write_byte(ptr %34, i8 zeroext 10)
+  %not_err40 = icmp eq i64 %38, 0
+  %39 = call i1 @llvm.expect.i1(i1 %not_err40, i1 true)
+  br i1 %39, label %after_check42, label %assign_optional41
+
+assign_optional41:                                ; preds = %noerr_block38
+  store i64 %38, ptr %error_var39, align 8
+  br label %guard_block43
+
+after_check42:                                    ; preds = %noerr_block38
+  br label %noerr_block44
+
+guard_block43:                                    ; preds = %assign_optional41
+  br label %voiderr52
+
+noerr_block44:                                    ; preds = %after_check42
+  %40 = call i64 @std.io.File.flush(ptr %34)
+  %not_err46 = icmp eq i64 %40, 0
+  %41 = call i1 @llvm.expect.i1(i1 %not_err46, i1 true)
+  br i1 %41, label %after_check48, label %assign_optional47
+
+assign_optional47:                                ; preds = %noerr_block44
+  store i64 %40, ptr %error_var45, align 8
+  br label %guard_block49
+
+after_check48:                                    ; preds = %noerr_block44
+  br label %noerr_block50
+
+guard_block49:                                    ; preds = %assign_optional47
+  br label %voiderr52
+
+noerr_block50:                                    ; preds = %after_check48
+  %42 = load i64, ptr %len30, align 8
+  %add51 = add i64 %42, 1
+  br label %voiderr52
+
+voiderr52:                                        ; preds = %noerr_block50, %guard_block49, %guard_block43, %guard_block37
+  %43 = load i32, ptr %abc, align 4
+  %44 = call i32 @llvm.bswap.i32(i32 %43)
+  %45 = and i32 65535, %44
+  %trunc = trunc i32 %45 to i16
+  store i16 %trunc, ptr %taddr54, align 2
+  %46 = insertvalue %any undef, ptr %taddr54, 0
+  %47 = insertvalue %any %46, i64 ptrtoint (ptr @"$ct.ushort" to i64), 1
+  store %any %47, ptr %varargslots53, align 16
+  %48 = call i64 @std.io.printfn(ptr %retparam55, ptr @.str.3, i64 10, ptr %varargslots53, i64 1)
+  %49 = load i32, ptr %abc, align 4
+  %50 = call i32 @llvm.bswap.i32(i32 %49)
+  %51 = and i32 %50, -65536
+  %52 = or i32 %51, 4660
+  %53 = call i32 @llvm.bswap.i32(i32 %52)
+  store i32 %53, ptr %abc, align 4
+  %54 = load i32, ptr %abc, align 4
+  %55 = call i32 @llvm.bswap.i32(i32 %54)
+  %56 = and i32 %55, 65535
+  %57 = or i32 %56, 1450704896
+  %58 = call i32 @llvm.bswap.i32(i32 %57)
+  store i32 %58, ptr %abc, align 4
+  %59 = load i32, ptr %abc, align 4
+  %60 = call i32 @llvm.bswap.i32(i32 %59)
+  %61 = and i32 65535, %60
+  %trunc59 = trunc i32 %61 to i16
+  store i16 %trunc59, ptr %taddr60, align 2
+  %62 = insertvalue %any undef, ptr %taddr60, 0
+  %63 = insertvalue %any %62, i64 ptrtoint (ptr @"$ct.ushort" to i64), 1
+  store %any %63, ptr %varargslots58, align 16
+  %64 = call i64 @std.io.printfn(ptr %retparam61, ptr @.str.4, i64 12, ptr %varargslots58, i64 1)
+  %65 = load ptr, ptr %z, align 8
+  store i64 0, ptr %.anon64, align 8
+  br label %loop.cond65
+
+loop.cond65:                                      ; preds = %loop.body67, %voiderr52
+  %66 = load i64, ptr %.anon64, align 8
+  %gt66 = icmp ugt i64 4, %66
+  br i1 %gt66, label %loop.body67, label %loop.exit75
+
+loop.body67:                                      ; preds = %loop.cond65
+  %67 = load i64, ptr %.anon64, align 8
+  %ptradd69 = getelementptr inbounds i8, ptr %65, i64 %67
+  %68 = load i8, ptr %ptradd69, align 1
+  store i8 %68, ptr %d68, align 1
+  %69 = insertvalue %any undef, ptr %d68, 0
+  %70 = insertvalue %any %69, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %70, ptr %varargslots70, align 16
+  %71 = call i64 @std.io.printf(ptr %retparam71, ptr @.str.5, i64 3, ptr %varargslots70, i64 1)
+  %72 = load i64, ptr %.anon64, align 8
+  %addnuw74 = add nuw i64 %72, 1
+  store i64 %addnuw74, ptr %.anon64, align 8
+  br label %loop.cond65
+
+loop.exit75:                                      ; preds = %loop.cond65
+  %73 = call ptr @std.io.stdout()
+  %74 = call i64 @std.io.File.write(ptr %retparam79, ptr %73, ptr null, i64 0)
+  %not_err80 = icmp eq i64 %74, 0
+  %75 = call i1 @llvm.expect.i1(i1 %not_err80, i1 true)
+  br i1 %75, label %after_check82, label %assign_optional81
+
+assign_optional81:                                ; preds = %loop.exit75
+  store i64 %74, ptr %error_var77, align 8
+  br label %guard_block83
+
+after_check82:                                    ; preds = %loop.exit75
+  br label %noerr_block84
+
+guard_block83:                                    ; preds = %assign_optional81
+  br label %voiderr98
+
+noerr_block84:                                    ; preds = %after_check82
+  %76 = load i64, ptr %retparam79, align 8
+  store i64 %76, ptr %len76, align 8
+  %77 = call i64 @std.io.File.write_byte(ptr %73, i8 zeroext 10)
+  %not_err86 = icmp eq i64 %77, 0
+  %78 = call i1 @llvm.expect.i1(i1 %not_err86, i1 true)
+  br i1 %78, label %after_check88, label %assign_optional87
+
+assign_optional87:                                ; preds = %noerr_block84
+  store i64 %77, ptr %error_var85, align 8
+  br label %guard_block89
+
+after_check88:                                    ; preds = %noerr_block84
+  br label %noerr_block90
+
+guard_block89:                                    ; preds = %assign_optional87
+  br label %voiderr98
+
+noerr_block90:                                    ; preds = %after_check88
+  %79 = call i64 @std.io.File.flush(ptr %73)
+  %not_err92 = icmp eq i64 %79, 0
+  %80 = call i1 @llvm.expect.i1(i1 %not_err92, i1 true)
+  br i1 %80, label %after_check94, label %assign_optional93
+
+assign_optional93:                                ; preds = %noerr_block90
+  store i64 %79, ptr %error_var91, align 8
+  br label %guard_block95
+
+after_check94:                                    ; preds = %noerr_block90
+  br label %noerr_block96
+
+guard_block95:                                    ; preds = %assign_optional93
+  br label %voiderr98
+
+noerr_block96:                                    ; preds = %after_check94
+  %81 = load i64, ptr %len76, align 8
+  %add97 = add i64 %81, 1
+  br label %voiderr98
+
+voiderr98:                                        ; preds = %noerr_block96, %guard_block95, %guard_block89, %guard_block83
+  store i32 0, ptr %y, align 4
+  %82 = load i32, ptr %y, align 4
+  store i32 123, ptr %y, align 4
+  %83 = insertvalue %any undef, ptr %y, 0
+  %84 = insertvalue %any %83, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %84, ptr %varargslots99, align 16
+  %85 = load i32, ptr %y, align 4
+  store i32 %85, ptr %taddr100, align 4
+  %86 = insertvalue %any undef, ptr %taddr100, 0
+  %87 = insertvalue %any %86, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd101 = getelementptr inbounds i8, ptr %varargslots99, i64 16
+  store %any %87, ptr %ptradd101, align 16
+  %88 = call i64 @std.io.printf(ptr %retparam102, ptr @.str.6, i64 18, ptr %varargslots99, i64 2)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_bool.c3t b/test/test_suite7/bitstruct/bitstruct_bool.c3t
new file mode 100644
index 000000000..bbece73f1
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_bool.c3t
@@ -0,0 +1,67 @@
+// #target: macos-x64
+module test;
+bitstruct Foo : int
+{
+    bool enable_help;
+    bool enable_version;
+}
+
+bitstruct Foo2 : char[2]
+{
+    bool enable_help;
+    bool enable_version;
+}
+
+fn void main()
+{
+	Foo a = { .enable_help };
+	Foo b = { .enable_version };
+	Foo $a = { .enable_help };
+    Foo $b = { .enable_version };
+    $assert(!($a & $b));
+	if (a & b) return;
+	Foo2 a2 = { .enable_help };
+	Foo2 b2 = { .enable_version, .enable_help };
+	if (!(a2 & b2)) return;
+}
+
+/* #expect: test.ll
+
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %a2 = alloca [2 x i8], align 1
+  %b2 = alloca [2 x i8], align 1
+  %0 = alloca i16, align 1
+  store i32 1, ptr %a, align 4
+  store i32 2, ptr %b, align 4
+  %1 = load i32, ptr %a, align 4
+  %2 = load i32, ptr %b, align 4
+  %and = and i32 %1, %2
+  %i2b = icmp ne i32 %and, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret void
+
+if.exit:                                          ; preds = %entry
+  store [2 x i8] c"\01\00", ptr %a2, align 1
+  store [2 x i8] c"\03\00", ptr %b2, align 1
+  %3 = load i16, ptr %a2, align 1
+  %4 = load i16, ptr %b2, align 1
+  %and1 = and i16 %3, %4
+  store i16 %and1, ptr %0, align 1
+  %5 = load i8, ptr %0, align 1
+  %zext = zext i8 %5 to i32
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 1
+  %6 = load i8, ptr %ptradd, align 1
+  %zext2 = zext i8 %6 to i32
+  %7 = add i32 %zext, %zext2
+  %8 = icmp eq i32 %7, 0
+  br i1 %8, label %if.then3, label %if.exit4
+
+if.then3:                                         ; preds = %if.exit
+  ret void
+
+if.exit4:                                         ; preds = %if.exit
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_cast_and_back.c3 b/test/test_suite7/bitstruct/bitstruct_cast_and_back.c3
new file mode 100644
index 000000000..7956f3f52
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_cast_and_back.c3
@@ -0,0 +1,15 @@
+// See issue #1159
+
+bitstruct Foo : int {
+  bool a;
+}
+
+bitstruct Bar : int {
+  bool a;
+  bool b;
+}
+
+fn void bitstruct_cast() {
+  Bar bar;
+  Foo foo = (Foo)(int)bar;
+}
diff --git a/test/test_suite7/bitstruct/bitstruct_cast_const_init.c3t b/test/test_suite7/bitstruct/bitstruct_cast_const_init.c3t
new file mode 100644
index 000000000..d1503ab39
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_cast_const_init.c3t
@@ -0,0 +1,20 @@
+// #target: macos-x64
+module test;
+bitstruct Foo : int
+{
+	int abc : 0..4;
+	int defg : 23..26;
+}
+
+fn void main()
+{
+	Foo f;
+	int z = (int) (Foo) { .abc = 2, .defg = 1 };
+}
+
+/* #expect: test.ll
+
+  %f = alloca i32, align 4
+  %z = alloca i32, align 4
+  store i32 0, ptr %f, align 4
+  store i32 8388610, ptr %z, align 4
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_direct_in_struct.c3t b/test/test_suite7/bitstruct/bitstruct_direct_in_struct.c3t
new file mode 100644
index 000000000..644ca323b
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_direct_in_struct.c3t
@@ -0,0 +1,52 @@
+// #target: macos-x64
+module test;
+bitstruct Flags : int {
+  bool flag1;
+}
+
+struct Foo {
+  long x;
+  Flags flags;
+}
+
+fn int main(String[] args) {
+  long x;
+  Foo foo = {
+    .x = x,
+    .flags.flag1 = true,
+  };
+  Flags flags;
+  Foo bar = {
+    .x = x,
+    .flags = flags,
+  };
+  return 0;
+}
+
+
+/* #expect: test.ll
+
+  store ptr %0, ptr %args, align 8
+  %ptradd = getelementptr inbounds i8, ptr %args, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  store i64 0, ptr %x, align 8
+  store i64 0, ptr %foo, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %foo, i64 8
+  store i32 0, ptr %ptradd1, align 8
+  %2 = load i64, ptr %x, align 8
+  store i64 %2, ptr %foo, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %foo, i64 8
+  %3 = load i32, ptr %ptradd2, align 8
+  %4 = and i32 %3, -2
+  %5 = or i32 %4, 1
+  store i32 %5, ptr %ptradd2, align 8
+  store i32 0, ptr %flags, align 4
+  store i64 0, ptr %bar, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %bar, i64 8
+  store i32 0, ptr %ptradd3, align 8
+  %6 = load i64, ptr %x, align 8
+  store i64 %6, ptr %bar, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %bar, i64 8
+  %7 = load i32, ptr %flags, align 4
+  store i32 %7, ptr %ptradd4, align 8
+  ret i32 0
diff --git a/test/test_suite7/bitstruct/bitstruct_general.c3 b/test/test_suite7/bitstruct/bitstruct_general.c3
new file mode 100644
index 000000000..62580160b
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_general.c3
@@ -0,0 +1,46 @@
+// #target: macos-x64
+
+module foo;
+
+
+bitstruct BitField
+{// #error: followed by bitstruct type
+  int a : 0..2;
+  int b : 4..6;
+  int c : 7..8;
+}
+
+
+bitstruct BitField2 : char
+{
+  int a : 0..2;
+  int b : 4..6;
+  int c : 7..8;
+}
+
+struct Packet
+{
+  bitstruct : int
+  {
+    int a : 0..2;
+    int b : 3..5;
+    int c : 5..6;
+  }
+  int packet_id;
+}
+
+bitstruct BitField3 : char[3]
+{
+  int a : 0..2;
+  int b : 3..8;
+  int c : 9..18;
+  int d : 19..23;
+}
+
+bitstruct BitField4 : char[3] @align(8)
+{
+  int a : 0..2;
+  int b : 3..7;
+  int c : 8..15;
+  int d : 16..19;
+}
diff --git a/test/test_suite7/bitstruct/bitstruct_in_subarray.c3t b/test/test_suite7/bitstruct/bitstruct_in_subarray.c3t
new file mode 100644
index 000000000..0e5396d88
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_in_subarray.c3t
@@ -0,0 +1,26 @@
+// #target: macos-x64
+module test;
+bitstruct StructFieldKind : char
+{
+    bool is_inline : 0;
+    bool is_union : 1;
+}
+
+fn void main()
+{
+    StructFieldKind[] xx = { { .is_union = true } };
+}
+
+/* #expect: test.ll
+
+
+define void @test.main() #0 {
+entry:
+  %xx = alloca %"char[]", align 8
+  %literal = alloca [1 x i8], align 1
+  store i8 2, ptr %literal, align 1
+  %0 = insertvalue %"char[]" undef, ptr %literal, 0
+  %1 = insertvalue %"char[]" %0, i64 1, 1
+  store %"char[]" %1, ptr %xx, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_init.c3 b/test/test_suite7/bitstruct/bitstruct_init.c3
new file mode 100644
index 000000000..b7ba43915
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_init.c3
@@ -0,0 +1,104 @@
+module foo;
+
+bitstruct Foo : uint
+{
+    int x : 1..3;
+    uint y : 11..13;
+    int z : 15..15;
+}
+
+struct Bar
+{
+    int x;
+    bitstruct baz : int
+    {
+        int x : 1..3;
+    }
+}
+
+struct Bar2
+{
+    int x;
+    bitstruct : int
+    {
+        int z : 1..3;
+    }
+
+}
+fn void testNested()
+{
+    Bar b1 = { 3, { 3 } };
+    Bar b2 = { .x = 3, .baz.x = 3 };
+    Bar2 b3 = { 1, 3 };
+    Bar2 b4 = { .x = 123, .z = 3 };
+    Bar2 b5 = { .x = 123, .z = 4 };  // #error: would be truncated
+    Bar2 b6 = { 1, 4 }; // #error: would be truncated
+    Bar b7 = { 3, { 4 } }; // #error: would be truncated
+    Bar b8 = { .x = 3, .baz.x = 4 }; // #error: would be truncated
+
+}
+
+fn void test()
+{
+    Foo abc = {};
+    abc.x = -4;
+    abc.z = 0;
+    abc.z = -1;
+    abc.x = 3;
+    abc.y = 7;
+    abc.x = -5; // #error: would be truncated
+    abc.x = 4; // #error: would be truncated
+    abc.y = 8; // #error: would be truncated
+}
+
+fn void test2()
+{
+    Foo abc = { -4, 8, 0 }; // #error: would be truncated
+}
+
+fn void test3()
+{
+    Foo abc = { .x = -4, .z = 0, .y = 8 }; // #error: would be truncated
+}
+
+bitstruct Flags1 : int
+{
+    bool a;
+    bool b;
+    bool c;
+}
+
+distinct Bool = bool;
+
+bitstruct Flags2 : int
+{
+    bool a : 0;
+    Bool b : 1;
+    int  c : 2..3;
+    bool d : 6;
+}
+
+struct Flags2_Struct
+{
+    bool a;
+    bool b;
+    int c;
+    bool d;
+}
+
+fn void test4()
+{
+    Flags1 flags1 = {.a, .b, .c};
+    flags1 = {.a};
+    flags1 = {.a = true, .b = true, .c = false};
+    flags1 = {.a, .b = true, .c = true}; // #error: Mixing the omission
+    Foo foo = { .x = 0, .z }; // #error: needs a value
+
+    Flags2 flags2 = {.b, .d};
+    flags2 = {.b, .c, .d}; // #error: needs a value
+    flags2 = {.a, .c = 1, .d}; // #error: Mixing the omission
+
+    Flags2_Struct flags2s;
+    flags2s = {.b, .c, .d}; // #error: needs a value
+    flags2s = {.a, .c = 1, .d}; // #error: needs a value
+}
diff --git a/test/test_suite7/bitstruct/bitstruct_init_bool.c3t b/test/test_suite7/bitstruct/bitstruct_init_bool.c3t
new file mode 100644
index 000000000..e91b63457
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_init_bool.c3t
@@ -0,0 +1,22 @@
+module foo;
+
+bitstruct Foo : int
+{
+	bool a : 1;
+	bool b : 2;
+	bool c : 3;
+}
+
+fn void test()
+{
+	Foo f = { .a = true, .b = false };
+}
+
+/* #expect: foo.ll
+
+define void @foo.test() #0 {
+entry:
+  %f = alloca i32, align 4
+  store i32 2, ptr %f, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_initializer.c3t b/test/test_suite7/bitstruct/bitstruct_initializer.c3t
new file mode 100644
index 000000000..b20b1106a
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_initializer.c3t
@@ -0,0 +1,461 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+bitstruct Foo : ulong
+{
+	uint x : 0..31;
+	uint y : 32..62;
+	bool w : 63;
+}
+
+bitstruct Bar : char[8]
+{
+	uint x : 0..31;
+	uint y : 32..62;
+	bool w : 63;
+}
+struct Abc
+{
+	int x;
+	Foo b;
+}
+
+fn void hello(int z)
+{
+	Foo x;
+	x = { .x = z, .w = z < 100 };
+	Abc y = { .b.x = 32, .b.y = 10 };
+	Abc d = { .b = { 23, 11, true } };
+	Bar b;
+	b = { .x = z, .w = z < 100 };
+	io::printfn("%s %s %s", x.x, x.y, x.w);
+	io::printfn("%s %s %s", y.b.x, y.b.y, y.b.w);
+	io::printfn("%s %s %s", b.x, b.y, b.w);
+	x = { z + 1, 1, z > 100 };
+	y.b = { 33, 11, true };
+	b = {  z + 1, 1, z > 100 };
+	io::printfn("%s %s %s", x.x, x.y, x.w);
+    io::printfn("%s %s %s", y.b.x, y.b.y, y.b.w);
+    io::printfn("%s %s %s", b.x, b.y, b.w);
+
+}
+
+fn void main()
+{
+	hello(12);
+}
+
+/* #expect: test.ll
+
+define void @test.hello(i32 %0) #0 {
+entry:
+  %x = alloca i64, align 8
+  %.assign_list = alloca i64, align 8
+  %y = alloca %Abc, align 8
+  %d = alloca %Abc, align 8
+  %b = alloca [8 x i8], align 1
+  %.assign_list10 = alloca [8 x i8], align 1
+  %varargslots = alloca [3 x %any], align 16
+  %taddr = alloca i32, align 4
+  %taddr33 = alloca i32, align 4
+  %taddr37 = alloca i8, align 1
+  %retparam = alloca i64, align 8
+  %varargslots39 = alloca [3 x %any], align 16
+  %taddr42 = alloca i32, align 4
+  %taddr46 = alloca i32, align 4
+  %taddr51 = alloca i8, align 1
+  %retparam53 = alloca i64, align 8
+  %varargslots54 = alloca [3 x %any], align 16
+  %taddr65 = alloca i32, align 4
+  %taddr77 = alloca i32, align 4
+  %taddr81 = alloca i8, align 1
+  %retparam83 = alloca i64, align 8
+  %.assign_list84 = alloca i64, align 8
+  %.assign_list89 = alloca [8 x i8], align 1
+  %varargslots116 = alloca [3 x %any], align 16
+  %taddr118 = alloca i32, align 4
+  %taddr121 = alloca i32, align 4
+  %taddr125 = alloca i8, align 1
+  %retparam127 = alloca i64, align 8
+  %varargslots128 = alloca [3 x %any], align 16
+  %taddr131 = alloca i32, align 4
+  %taddr135 = alloca i32, align 4
+  %taddr140 = alloca i8, align 1
+  %retparam142 = alloca i64, align 8
+  %varargslots143 = alloca [3 x %any], align 16
+  %taddr154 = alloca i32, align 4
+  %taddr166 = alloca i32, align 4
+  %taddr170 = alloca i8, align 1
+  %retparam172 = alloca i64, align 8
+  store i64 0, ptr %x, align 8
+  %zext = zext i32 %0 to i64
+  %1 = and i64 %zext, 4294967295
+  %lt = icmp slt i32 %0, 100
+  %2 = zext i1 %lt to i8
+  %zext1 = zext i8 %2 to i64
+  %shl = shl i64 %zext1, 63
+  %3 = and i64 %shl, -9223372036854775808
+  %4 = and i64 %1, 9223372036854775807
+  %5 = or i64 %4, %3
+  store i64 %5, ptr %.assign_list, align 8
+  %6 = load i64, ptr %.assign_list, align 8
+  store i64 %6, ptr %x, align 8
+  store i32 0, ptr %y, align 8
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 8
+  store i64 42949672992, ptr %ptradd, align 8
+  store i32 0, ptr %d, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %d, i64 8
+  store i64 -9223371989610135529, ptr %ptradd2, align 8
+  store i8 0, ptr %b, align 1
+  %ptradd3 = getelementptr inbounds i8, ptr %b, i64 1
+  store i8 0, ptr %ptradd3, align 1
+  %ptradd4 = getelementptr inbounds i8, ptr %b, i64 2
+  store i8 0, ptr %ptradd4, align 1
+  %ptradd5 = getelementptr inbounds i8, ptr %b, i64 3
+  store i8 0, ptr %ptradd5, align 1
+  %ptradd6 = getelementptr inbounds i8, ptr %b, i64 4
+  store i8 0, ptr %ptradd6, align 1
+  %ptradd7 = getelementptr inbounds i8, ptr %b, i64 5
+  store i8 0, ptr %ptradd7, align 1
+  %ptradd8 = getelementptr inbounds i8, ptr %b, i64 6
+  store i8 0, ptr %ptradd8, align 1
+  %ptradd9 = getelementptr inbounds i8, ptr %b, i64 7
+  store i8 0, ptr %ptradd9, align 1
+  store i8 0, ptr %.assign_list10, align 1
+  %ptradd11 = getelementptr inbounds i8, ptr %.assign_list10, i64 1
+  store i8 0, ptr %ptradd11, align 1
+  %ptradd12 = getelementptr inbounds i8, ptr %.assign_list10, i64 2
+  store i8 0, ptr %ptradd12, align 1
+  %ptradd13 = getelementptr inbounds i8, ptr %.assign_list10, i64 3
+  store i8 0, ptr %ptradd13, align 1
+  %ptradd14 = getelementptr inbounds i8, ptr %.assign_list10, i64 4
+  store i8 0, ptr %ptradd14, align 1
+  %ptradd15 = getelementptr inbounds i8, ptr %.assign_list10, i64 5
+  store i8 0, ptr %ptradd15, align 1
+  %ptradd16 = getelementptr inbounds i8, ptr %.assign_list10, i64 6
+  store i8 0, ptr %ptradd16, align 1
+  %ptradd17 = getelementptr inbounds i8, ptr %.assign_list10, i64 7
+  store i8 0, ptr %ptradd17, align 1
+  %trunc = trunc i32 %0 to i8
+  store i8 %trunc, ptr %.assign_list10, align 1
+  %lshrl = lshr i32 %0, 8
+  %ptradd18 = getelementptr inbounds i8, ptr %.assign_list10, i64 1
+  %trunc19 = trunc i32 %lshrl to i8
+  store i8 %trunc19, ptr %ptradd18, align 1
+  %lshrl20 = lshr i32 %lshrl, 8
+  %ptradd21 = getelementptr inbounds i8, ptr %.assign_list10, i64 2
+  %trunc22 = trunc i32 %lshrl20 to i8
+  store i8 %trunc22, ptr %ptradd21, align 1
+  %lshrl23 = lshr i32 %lshrl20, 8
+  %ptradd24 = getelementptr inbounds i8, ptr %.assign_list10, i64 3
+  %trunc25 = trunc i32 %lshrl23 to i8
+  store i8 %trunc25, ptr %ptradd24, align 1
+  %lshrl26 = lshr i32 %lshrl23, 8
+  %lt27 = icmp slt i32 %0, 100
+  %7 = zext i1 %lt27 to i8
+  %shl28 = shl i8 %7, 7
+  %ptradd29 = getelementptr inbounds i8, ptr %.assign_list10, i64 7
+  %8 = load i8, ptr %ptradd29, align 1
+  %9 = and i8 %8, 127
+  %10 = or i8 %9, %shl28
+  store i8 %10, ptr %ptradd29, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %b, ptr align 1 %.assign_list10, i32 8, i1 false)
+  %11 = load i64, ptr %x, align 8
+  %12 = and i64 4294967295, %11
+  %trunc30 = trunc i64 %12 to i32
+  store i32 %trunc30, ptr %taddr, align 4
+  %13 = insertvalue %any undef, ptr %taddr, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %14, ptr %varargslots, align 16
+  %15 = load i64, ptr %x, align 8
+  %lshrl31 = lshr i64 %15, 32
+  %16 = and i64 2147483647, %lshrl31
+  %trunc32 = trunc i64 %16 to i32
+  store i32 %trunc32, ptr %taddr33, align 4
+  %17 = insertvalue %any undef, ptr %taddr33, 0
+  %18 = insertvalue %any %17, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  %ptradd34 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %18, ptr %ptradd34, align 16
+  %19 = load i64, ptr %x, align 8
+  %lshrl35 = lshr i64 %19, 63
+  %20 = and i64 1, %lshrl35
+  %trunc36 = trunc i64 %20 to i8
+  store i8 %trunc36, ptr %taddr37, align 1
+  %21 = insertvalue %any undef, ptr %taddr37, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd38 = getelementptr inbounds i8, ptr %varargslots, i64 32
+  store %any %22, ptr %ptradd38, align 16
+  %23 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 8, ptr %varargslots, i64 3)
+  %ptradd40 = getelementptr inbounds i8, ptr %y, i64 8
+  %24 = load i64, ptr %ptradd40, align 8
+  %25 = and i64 4294967295, %24
+  %trunc41 = trunc i64 %25 to i32
+  store i32 %trunc41, ptr %taddr42, align 4
+  %26 = insertvalue %any undef, ptr %taddr42, 0
+  %27 = insertvalue %any %26, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %27, ptr %varargslots39, align 16
+  %ptradd43 = getelementptr inbounds i8, ptr %y, i64 8
+  %28 = load i64, ptr %ptradd43, align 8
+  %lshrl44 = lshr i64 %28, 32
+  %29 = and i64 2147483647, %lshrl44
+  %trunc45 = trunc i64 %29 to i32
+  store i32 %trunc45, ptr %taddr46, align 4
+  %30 = insertvalue %any undef, ptr %taddr46, 0
+  %31 = insertvalue %any %30, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  %ptradd47 = getelementptr inbounds i8, ptr %varargslots39, i64 16
+  store %any %31, ptr %ptradd47, align 16
+  %ptradd48 = getelementptr inbounds i8, ptr %y, i64 8
+  %32 = load i64, ptr %ptradd48, align 8
+  %lshrl49 = lshr i64 %32, 63
+  %33 = and i64 1, %lshrl49
+  %trunc50 = trunc i64 %33 to i8
+  store i8 %trunc50, ptr %taddr51, align 1
+  %34 = insertvalue %any undef, ptr %taddr51, 0
+  %35 = insertvalue %any %34, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd52 = getelementptr inbounds i8, ptr %varargslots39, i64 32
+  store %any %35, ptr %ptradd52, align 16
+  %36 = call i64 @std.io.printfn(ptr %retparam53, ptr @.str.1, i64 8, ptr %varargslots39, i64 3)
+  %37 = load i8, ptr %b, align 1
+  %zext55 = zext i8 %37 to i32
+  %ptradd56 = getelementptr inbounds i8, ptr %b, i64 1
+  %38 = load i8, ptr %ptradd56, align 1
+  %zext57 = zext i8 %38 to i32
+  %shl58 = shl i32 %zext57, 8
+  %39 = or i32 %shl58, %zext55
+  %ptradd59 = getelementptr inbounds i8, ptr %b, i64 2
+  %40 = load i8, ptr %ptradd59, align 1
+  %zext60 = zext i8 %40 to i32
+  %shl61 = shl i32 %zext60, 16
+  %41 = or i32 %shl61, %39
+  %ptradd62 = getelementptr inbounds i8, ptr %b, i64 3
+  %42 = load i8, ptr %ptradd62, align 1
+  %zext63 = zext i8 %42 to i32
+  %shl64 = shl i32 %zext63, 24
+  %43 = or i32 %shl64, %41
+  store i32 %43, ptr %taddr65, align 4
+  %44 = insertvalue %any undef, ptr %taddr65, 0
+  %45 = insertvalue %any %44, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %45, ptr %varargslots54, align 16
+  %ptradd66 = getelementptr inbounds i8, ptr %b, i64 4
+  %46 = load i8, ptr %ptradd66, align 1
+  %zext67 = zext i8 %46 to i32
+  %ptradd68 = getelementptr inbounds i8, ptr %b, i64 5
+  %47 = load i8, ptr %ptradd68, align 1
+  %zext69 = zext i8 %47 to i32
+  %shl70 = shl i32 %zext69, 8
+  %48 = or i32 %shl70, %zext67
+  %ptradd71 = getelementptr inbounds i8, ptr %b, i64 6
+  %49 = load i8, ptr %ptradd71, align 1
+  %zext72 = zext i8 %49 to i32
+  %shl73 = shl i32 %zext72, 16
+  %50 = or i32 %shl73, %48
+  %ptradd74 = getelementptr inbounds i8, ptr %b, i64 7
+  %51 = load i8, ptr %ptradd74, align 1
+  %zext75 = zext i8 %51 to i32
+  %shl76 = shl i32 %zext75, 24
+  %52 = or i32 %shl76, %50
+  %53 = and i32 2147483647, %52
+  store i32 %53, ptr %taddr77, align 4
+  %54 = insertvalue %any undef, ptr %taddr77, 0
+  %55 = insertvalue %any %54, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  %ptradd78 = getelementptr inbounds i8, ptr %varargslots54, i64 16
+  store %any %55, ptr %ptradd78, align 16
+  %ptradd79 = getelementptr inbounds i8, ptr %b, i64 7
+  %56 = load i8, ptr %ptradd79, align 1
+  %lshrl80 = lshr i8 %56, 7
+  %57 = trunc i8 %lshrl80 to i1
+  %58 = zext i1 %57 to i8
+  store i8 %58, ptr %taddr81, align 1
+  %59 = insertvalue %any undef, ptr %taddr81, 0
+  %60 = insertvalue %any %59, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd82 = getelementptr inbounds i8, ptr %varargslots54, i64 32
+  store %any %60, ptr %ptradd82, align 16
+  %61 = call i64 @std.io.printfn(ptr %retparam83, ptr @.str.2, i64 8, ptr %varargslots54, i64 3)
+  %add = add i32 %0, 1
+  %zext85 = zext i32 %add to i64
+  %62 = and i64 %zext85, 4294967295
+  %63 = and i64 %62, -9223372032559808513
+  %64 = or i64 %63, 4294967296
+  %gt = icmp sgt i32 %0, 100
+  %65 = zext i1 %gt to i8
+  %zext86 = zext i8 %65 to i64
+  %shl87 = shl i64 %zext86, 63
+  %66 = and i64 %shl87, -9223372036854775808
+  %67 = and i64 %64, 9223372036854775807
+  %68 = or i64 %67, %66
+  store i64 %68, ptr %.assign_list84, align 8
+  %69 = load i64, ptr %.assign_list84, align 8
+  store i64 %69, ptr %x, align 8
+  %ptradd88 = getelementptr inbounds i8, ptr %y, i64 8
+  store i64 -9223371989610135519, ptr %ptradd88, align 8
+  store i8 0, ptr %.assign_list89, align 1
+  %ptradd90 = getelementptr inbounds i8, ptr %.assign_list89, i64 1
+  store i8 0, ptr %ptradd90, align 1
+  %ptradd91 = getelementptr inbounds i8, ptr %.assign_list89, i64 2
+  store i8 0, ptr %ptradd91, align 1
+  %ptradd92 = getelementptr inbounds i8, ptr %.assign_list89, i64 3
+  store i8 0, ptr %ptradd92, align 1
+  %ptradd93 = getelementptr inbounds i8, ptr %.assign_list89, i64 4
+  store i8 0, ptr %ptradd93, align 1
+  %ptradd94 = getelementptr inbounds i8, ptr %.assign_list89, i64 5
+  store i8 0, ptr %ptradd94, align 1
+  %ptradd95 = getelementptr inbounds i8, ptr %.assign_list89, i64 6
+  store i8 0, ptr %ptradd95, align 1
+  %ptradd96 = getelementptr inbounds i8, ptr %.assign_list89, i64 7
+  store i8 0, ptr %ptradd96, align 1
+  %add97 = add i32 %0, 1
+  %trunc98 = trunc i32 %add97 to i8
+  store i8 %trunc98, ptr %.assign_list89, align 1
+  %lshrl99 = lshr i32 %add97, 8
+  %ptradd100 = getelementptr inbounds i8, ptr %.assign_list89, i64 1
+  %trunc101 = trunc i32 %lshrl99 to i8
+  store i8 %trunc101, ptr %ptradd100, align 1
+  %lshrl102 = lshr i32 %lshrl99, 8
+  %ptradd103 = getelementptr inbounds i8, ptr %.assign_list89, i64 2
+  %trunc104 = trunc i32 %lshrl102 to i8
+  store i8 %trunc104, ptr %ptradd103, align 1
+  %lshrl105 = lshr i32 %lshrl102, 8
+  %ptradd106 = getelementptr inbounds i8, ptr %.assign_list89, i64 3
+  %trunc107 = trunc i32 %lshrl105 to i8
+  store i8 %trunc107, ptr %ptradd106, align 1
+  %lshrl108 = lshr i32 %lshrl105, 8
+  %ptradd109 = getelementptr inbounds i8, ptr %.assign_list89, i64 4
+  store i8 1, ptr %ptradd109, align 1
+  %ptradd110 = getelementptr inbounds i8, ptr %.assign_list89, i64 5
+  store i8 0, ptr %ptradd110, align 1
+  %ptradd111 = getelementptr inbounds i8, ptr %.assign_list89, i64 6
+  store i8 0, ptr %ptradd111, align 1
+  %ptradd112 = getelementptr inbounds i8, ptr %.assign_list89, i64 7
+  %70 = load i8, ptr %ptradd112, align 1
+  %71 = and i8 %70, -128
+  store i8 %71, ptr %ptradd112, align 1
+  %gt113 = icmp sgt i32 %0, 100
+  %72 = zext i1 %gt113 to i8
+  %shl114 = shl i8 %72, 7
+  %ptradd115 = getelementptr inbounds i8, ptr %.assign_list89, i64 7
+  %73 = load i8, ptr %ptradd115, align 1
+  %74 = and i8 %73, 127
+  %75 = or i8 %74, %shl114
+  store i8 %75, ptr %ptradd115, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %b, ptr align 1 %.assign_list89, i32 8, i1 false)
+  %76 = load i64, ptr %x, align 8
+  %77 = and i64 4294967295, %76
+  %trunc117 = trunc i64 %77 to i32
+  store i32 %trunc117, ptr %taddr118, align 4
+  %78 = insertvalue %any undef, ptr %taddr118, 0
+  %79 = insertvalue %any %78, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %79, ptr %varargslots116, align 16
+  %80 = load i64, ptr %x, align 8
+  %lshrl119 = lshr i64 %80, 32
+  %81 = and i64 2147483647, %lshrl119
+  %trunc120 = trunc i64 %81 to i32
+  store i32 %trunc120, ptr %taddr121, align 4
+  %82 = insertvalue %any undef, ptr %taddr121, 0
+  %83 = insertvalue %any %82, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  %ptradd122 = getelementptr inbounds i8, ptr %varargslots116, i64 16
+  store %any %83, ptr %ptradd122, align 16
+  %84 = load i64, ptr %x, align 8
+  %lshrl123 = lshr i64 %84, 63
+  %85 = and i64 1, %lshrl123
+  %trunc124 = trunc i64 %85 to i8
+  store i8 %trunc124, ptr %taddr125, align 1
+  %86 = insertvalue %any undef, ptr %taddr125, 0
+  %87 = insertvalue %any %86, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd126 = getelementptr inbounds i8, ptr %varargslots116, i64 32
+  store %any %87, ptr %ptradd126, align 16
+  %88 = call i64 @std.io.printfn(ptr %retparam127, ptr @.str.3, i64 8, ptr %varargslots116, i64 3)
+  %ptradd129 = getelementptr inbounds i8, ptr %y, i64 8
+  %89 = load i64, ptr %ptradd129, align 8
+  %90 = and i64 4294967295, %89
+  %trunc130 = trunc i64 %90 to i32
+  store i32 %trunc130, ptr %taddr131, align 4
+  %91 = insertvalue %any undef, ptr %taddr131, 0
+  %92 = insertvalue %any %91, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %92, ptr %varargslots128, align 16
+  %ptradd132 = getelementptr inbounds i8, ptr %y, i64 8
+  %93 = load i64, ptr %ptradd132, align 8
+  %lshrl133 = lshr i64 %93, 32
+  %94 = and i64 2147483647, %lshrl133
+  %trunc134 = trunc i64 %94 to i32
+  store i32 %trunc134, ptr %taddr135, align 4
+  %95 = insertvalue %any undef, ptr %taddr135, 0
+  %96 = insertvalue %any %95, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  %ptradd136 = getelementptr inbounds i8, ptr %varargslots128, i64 16
+  store %any %96, ptr %ptradd136, align 16
+  %ptradd137 = getelementptr inbounds i8, ptr %y, i64 8
+  %97 = load i64, ptr %ptradd137, align 8
+  %lshrl138 = lshr i64 %97, 63
+  %98 = and i64 1, %lshrl138
+  %trunc139 = trunc i64 %98 to i8
+  store i8 %trunc139, ptr %taddr140, align 1
+  %99 = insertvalue %any undef, ptr %taddr140, 0
+  %100 = insertvalue %any %99, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd141 = getelementptr inbounds i8, ptr %varargslots128, i64 32
+  store %any %100, ptr %ptradd141, align 16
+  %101 = call i64 @std.io.printfn(ptr %retparam142, ptr @.str.4, i64 8, ptr %varargslots128, i64 3)
+  %102 = load i8, ptr %b, align 1
+  %zext144 = zext i8 %102 to i32
+  %ptradd145 = getelementptr inbounds i8, ptr %b, i64 1
+  %103 = load i8, ptr %ptradd145, align 1
+  %zext146 = zext i8 %103 to i32
+  %shl147 = shl i32 %zext146, 8
+  %104 = or i32 %shl147, %zext144
+  %ptradd148 = getelementptr inbounds i8, ptr %b, i64 2
+  %105 = load i8, ptr %ptradd148, align 1
+  %zext149 = zext i8 %105 to i32
+  %shl150 = shl i32 %zext149, 16
+  %106 = or i32 %shl150, %104
+  %ptradd151 = getelementptr inbounds i8, ptr %b, i64 3
+  %107 = load i8, ptr %ptradd151, align 1
+  %zext152 = zext i8 %107 to i32
+  %shl153 = shl i32 %zext152, 24
+  %108 = or i32 %shl153, %106
+  store i32 %108, ptr %taddr154, align 4
+  %109 = insertvalue %any undef, ptr %taddr154, 0
+  %110 = insertvalue %any %109, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %110, ptr %varargslots143, align 16
+  %ptradd155 = getelementptr inbounds i8, ptr %b, i64 4
+  %111 = load i8, ptr %ptradd155, align 1
+  %zext156 = zext i8 %111 to i32
+  %ptradd157 = getelementptr inbounds i8, ptr %b, i64 5
+  %112 = load i8, ptr %ptradd157, align 1
+  %zext158 = zext i8 %112 to i32
+  %shl159 = shl i32 %zext158, 8
+  %113 = or i32 %shl159, %zext156
+  %ptradd160 = getelementptr inbounds i8, ptr %b, i64 6
+  %114 = load i8, ptr %ptradd160, align 1
+  %zext161 = zext i8 %114 to i32
+  %shl162 = shl i32 %zext161, 16
+  %115 = or i32 %shl162, %113
+  %ptradd163 = getelementptr inbounds i8, ptr %b, i64 7
+  %116 = load i8, ptr %ptradd163, align 1
+  %zext164 = zext i8 %116 to i32
+  %shl165 = shl i32 %zext164, 24
+  %117 = or i32 %shl165, %115
+  %118 = and i32 2147483647, %117
+  store i32 %118, ptr %taddr166, align 4
+  %119 = insertvalue %any undef, ptr %taddr166, 0
+  %120 = insertvalue %any %119, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  %ptradd167 = getelementptr inbounds i8, ptr %varargslots143, i64 16
+  store %any %120, ptr %ptradd167, align 16
+  %ptradd168 = getelementptr inbounds i8, ptr %b, i64 7
+  %121 = load i8, ptr %ptradd168, align 1
+  %lshrl169 = lshr i8 %121, 7
+  %122 = trunc i8 %lshrl169 to i1
+  %123 = zext i1 %122 to i8
+  store i8 %123, ptr %taddr170, align 1
+  %124 = insertvalue %any undef, ptr %taddr170, 0
+  %125 = insertvalue %any %124, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd171 = getelementptr inbounds i8, ptr %varargslots143, i64 32
+  store %any %125, ptr %ptradd171, align 16
+  %126 = call i64 @std.io.printfn(ptr %retparam172, ptr @.str.5, i64 8, ptr %varargslots143, i64 3)
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define void @test.main() #0 {
+entry:
+  call void @test.hello(i32 12)
+  ret void
+}
diff --git a/test/test_suite7/bitstruct/bitstruct_intcontainer.c3t b/test/test_suite7/bitstruct/bitstruct_intcontainer.c3t
new file mode 100644
index 000000000..ce26f7058
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_intcontainer.c3t
@@ -0,0 +1,105 @@
+// #target: macos-x64
+
+module foo;
+
+bitstruct BitFieldCross : uint
+{
+    uint d : 0..4;
+    int a : 5..22;
+    uint c : 23..31;
+}
+
+bitstruct BitFieldCrossU : int
+{
+    uint d : 0..4;
+    uint a : 5..22;
+    uint c : 23..31;
+}
+
+bitstruct BitFieldCrossUL : long
+{
+    uint d : 0..4;
+    uint a : 5..22;
+    uint c : 23..40;
+    uint e : 41..61;
+}
+
+bitstruct BitFieldCrossULBE : long @bigendian
+{
+    uint d : 0..4;
+    uint a : 5..22;
+    uint c : 23..40;
+    uint e : 41..61;
+}
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    BitFieldCross xx = { 0, -15, 0 };
+    printf("%d\n", xx.a);
+    xx = { 0x1f, -15, 0x7f };
+    printf("%d\n", xx.a);
+    BitFieldCrossU xxu = { 0x1f, 0x25678, 0x1ff };
+    printf("%x\n", xxu.a);
+    BitFieldCrossUL xxy = { 0x1f, 0x25678, 0xeffe, 0xa9597 };
+    printf("%x, %x, %x\n", xxy.a, xxy.c, xxy.e);
+    BitFieldCrossULBE xxybe = { 0x1f, 0x25678, 0xeffe, 0xa9597 };
+    printf("%x, %x, %x\n", xxybe.a, xxybe.c, xxybe.e);
+}
+
+
+/* #expect: foo.ll
+
+entry:
+  %xx = alloca i32, align 4
+  %xxu = alloca i32, align 4
+  %xxy = alloca i64, align 8
+  %xxybe = alloca i64, align 8
+  store i32 8388128, ptr %xx, align 4
+  %0 = load i32, ptr %xx, align 4
+  %shl = shl i32 %0, 9
+  %ashr = ashr i32 %shl, 14
+  call void (ptr, ...) @printf(ptr @.str, i32 %ashr)
+  store i32 1073741375, ptr %xx, align 4
+  %1 = load i32, ptr %xx, align 4
+  %shl1 = shl i32 %1, 9
+  %ashr2 = ashr i32 %shl1, 14
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %ashr2)
+  store i32 -3485921, ptr %xxu, align 4
+  %2 = load i32, ptr %xxu, align 4
+  %lshrl = lshr i32 %2, 5
+  %3 = and i32 262143, %lshrl
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %3)
+  store i64 1525363991714123551, ptr %xxy, align 8
+  %4 = load i64, ptr %xxy, align 8
+  %lshrl3 = lshr i64 %4, 5
+  %5 = and i64 262143, %lshrl3
+  %trunc = trunc i64 %5 to i32
+  %6 = load i64, ptr %xxy, align 8
+  %lshrl4 = lshr i64 %6, 23
+  %7 = and i64 262143, %lshrl4
+  %trunc5 = trunc i64 %7 to i32
+  %8 = load i64, ptr %xxy, align 8
+  %lshrl6 = lshr i64 %8, 41
+  %9 = and i64 2097151, %lshrl6
+  %trunc7 = trunc i64 %9 to i32
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %trunc, i32 %trunc5, i32 %trunc7)
+  store i64 2292133196431502101, ptr %xxybe, align 8
+  %10 = load i64, ptr %xxybe, align 8
+  %11 = call i64 @llvm.bswap.i64(i64 %10)
+  %lshrl8 = lshr i64 %11, 5
+  %12 = and i64 262143, %lshrl8
+  %trunc9 = trunc i64 %12 to i32
+  %13 = load i64, ptr %xxybe, align 8
+  %14 = call i64 @llvm.bswap.i64(i64 %13)
+  %lshrl10 = lshr i64 %14, 23
+  %15 = and i64 262143, %lshrl10
+  %trunc11 = trunc i64 %15 to i32
+  %16 = load i64, ptr %xxybe, align 8
+  %17 = call i64 @llvm.bswap.i64(i64 %16)
+  %lshrl12 = lshr i64 %17, 41
+  %18 = and i64 2097151, %lshrl12
+  %trunc13 = trunc i64 %18 to i32
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %trunc9, i32 %trunc11, i32 %trunc13)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_ops.c3t b/test/test_suite7/bitstruct/bitstruct_ops.c3t
new file mode 100644
index 000000000..f6439f669
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_ops.c3t
@@ -0,0 +1,276 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+bitstruct Foo : int
+{
+	bool a : 0;
+	bool b : 1;
+}
+
+bitstruct Bar : char[13]
+{
+	bool z : 0;
+	bool w : 1;
+	bool gh : 25;
+}
+fn void main()
+{
+	Foo f1 = { true, true };
+	Foo f2 = { true, false };
+
+	Foo f3 = f1 & f2;
+	io::printfn("%s %s", f3.a, f3.b);
+	Foo f4 = (f1 | ~f2) ^ f3;
+	io::printfn("%s %s", f4.a, f4.b);
+	Foo f5 = (Foo) { true, false } | (Foo) { false, true };
+	io::printfn("%s %s", f5.a, f5.b);
+
+	f5 &= f2;
+	io::printfn("%s %s", f5.a, f5.b);
+
+	Bar b1 = { true, true, true };
+	Bar b2 = { true, false, false };
+
+	Bar b3 = b1 & b2;
+	io::printfn("%s %s %s", b3.z, b3.w, b3.gh);
+	b3 = ~b3;
+	io::printfn("%s %s %s", b3.z, b3.w, b3.gh);
+	b3 ^= (Bar) { true, true, false };
+	io::printfn("%s %s %s", b3.z, b3.w, b3.gh);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %f1 = alloca i32, align 4
+  %f2 = alloca i32, align 4
+  %f3 = alloca i32, align 4
+  %varargslots = alloca [2 x %any], align 16
+  %taddr = alloca i8, align 1
+  %taddr2 = alloca i8, align 1
+  %retparam = alloca i64, align 8
+  %f4 = alloca i32, align 4
+  %varargslots3 = alloca [2 x %any], align 16
+  %taddr5 = alloca i8, align 1
+  %taddr8 = alloca i8, align 1
+  %retparam10 = alloca i64, align 8
+  %f5 = alloca i32, align 4
+  %varargslots11 = alloca [2 x %any], align 16
+  %taddr13 = alloca i8, align 1
+  %taddr16 = alloca i8, align 1
+  %retparam18 = alloca i64, align 8
+  %varargslots20 = alloca [2 x %any], align 16
+  %taddr22 = alloca i8, align 1
+  %taddr25 = alloca i8, align 1
+  %retparam27 = alloca i64, align 8
+  %b1 = alloca [13 x i8], align 1
+  %b2 = alloca [13 x i8], align 1
+  %b3 = alloca [13 x i8], align 1
+  %0 = alloca i104, align 1
+  %varargslots29 = alloca [3 x %any], align 16
+  %taddr30 = alloca i8, align 1
+  %taddr32 = alloca i8, align 1
+  %taddr36 = alloca i8, align 1
+  %retparam38 = alloca i64, align 8
+  %1 = alloca i104, align 1
+  %varargslots40 = alloca [3 x %any], align 16
+  %taddr41 = alloca i8, align 1
+  %taddr43 = alloca i8, align 1
+  %taddr47 = alloca i8, align 1
+  %retparam49 = alloca i64, align 8
+  %taddr50 = alloca [13 x i8], align 1
+  %2 = alloca i104, align 1
+  %varargslots52 = alloca [3 x %any], align 16
+  %taddr53 = alloca i8, align 1
+  %taddr55 = alloca i8, align 1
+  %taddr59 = alloca i8, align 1
+  %retparam61 = alloca i64, align 8
+  store i32 3, ptr %f1, align 4
+  store i32 1, ptr %f2, align 4
+  %3 = load i32, ptr %f1, align 4
+  %4 = load i32, ptr %f2, align 4
+  %and = and i32 %3, %4
+  store i32 %and, ptr %f3, align 4
+  %5 = load i32, ptr %f3, align 4
+  %6 = and i32 1, %5
+  %trunc = trunc i32 %6 to i8
+  store i8 %trunc, ptr %taddr, align 1
+  %7 = insertvalue %any undef, ptr %taddr, 0
+  %8 = insertvalue %any %7, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %8, ptr %varargslots, align 16
+  %9 = load i32, ptr %f3, align 4
+  %lshrl = lshr i32 %9, 1
+  %10 = and i32 1, %lshrl
+  %trunc1 = trunc i32 %10 to i8
+  store i8 %trunc1, ptr %taddr2, align 1
+  %11 = insertvalue %any undef, ptr %taddr2, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %12, ptr %ptradd, align 16
+  %13 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 5, ptr %varargslots, i64 2)
+  %14 = load i32, ptr %f1, align 4
+  %15 = load i32, ptr %f2, align 4
+  %bnot = xor i32 %15, -1
+  %or = or i32 %14, %bnot
+  %16 = load i32, ptr %f3, align 4
+  %xor = xor i32 %or, %16
+  store i32 %xor, ptr %f4, align 4
+  %17 = load i32, ptr %f4, align 4
+  %18 = and i32 1, %17
+  %trunc4 = trunc i32 %18 to i8
+  store i8 %trunc4, ptr %taddr5, align 1
+  %19 = insertvalue %any undef, ptr %taddr5, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %20, ptr %varargslots3, align 16
+  %21 = load i32, ptr %f4, align 4
+  %lshrl6 = lshr i32 %21, 1
+  %22 = and i32 1, %lshrl6
+  %trunc7 = trunc i32 %22 to i8
+  store i8 %trunc7, ptr %taddr8, align 1
+  %23 = insertvalue %any undef, ptr %taddr8, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd9 = getelementptr inbounds i8, ptr %varargslots3, i64 16
+  store %any %24, ptr %ptradd9, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam10, ptr @.str.1, i64 5, ptr %varargslots3, i64 2)
+  store i32 3, ptr %f5, align 4
+  %26 = load i32, ptr %f5, align 4
+  %27 = and i32 1, %26
+  %trunc12 = trunc i32 %27 to i8
+  store i8 %trunc12, ptr %taddr13, align 1
+  %28 = insertvalue %any undef, ptr %taddr13, 0
+  %29 = insertvalue %any %28, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %29, ptr %varargslots11, align 16
+  %30 = load i32, ptr %f5, align 4
+  %lshrl14 = lshr i32 %30, 1
+  %31 = and i32 1, %lshrl14
+  %trunc15 = trunc i32 %31 to i8
+  store i8 %trunc15, ptr %taddr16, align 1
+  %32 = insertvalue %any undef, ptr %taddr16, 0
+  %33 = insertvalue %any %32, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd17 = getelementptr inbounds i8, ptr %varargslots11, i64 16
+  store %any %33, ptr %ptradd17, align 16
+  %34 = call i64 @std.io.printfn(ptr %retparam18, ptr @.str.2, i64 5, ptr %varargslots11, i64 2)
+  %35 = load i32, ptr %f5, align 4
+  %36 = load i32, ptr %f2, align 4
+  %and19 = and i32 %35, %36
+  store i32 %and19, ptr %f5, align 4
+  %37 = load i32, ptr %f5, align 4
+  %38 = and i32 1, %37
+  %trunc21 = trunc i32 %38 to i8
+  store i8 %trunc21, ptr %taddr22, align 1
+  %39 = insertvalue %any undef, ptr %taddr22, 0
+  %40 = insertvalue %any %39, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %40, ptr %varargslots20, align 16
+  %41 = load i32, ptr %f5, align 4
+  %lshrl23 = lshr i32 %41, 1
+  %42 = and i32 1, %lshrl23
+  %trunc24 = trunc i32 %42 to i8
+  store i8 %trunc24, ptr %taddr25, align 1
+  %43 = insertvalue %any undef, ptr %taddr25, 0
+  %44 = insertvalue %any %43, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd26 = getelementptr inbounds i8, ptr %varargslots20, i64 16
+  store %any %44, ptr %ptradd26, align 16
+  %45 = call i64 @std.io.printfn(ptr %retparam27, ptr @.str.3, i64 5, ptr %varargslots20, i64 2)
+  store [13 x i8] c"\03\00\00\02\00\00\00\00\00\00\00\00\00", ptr %b1, align 1
+  store [13 x i8] c"\01\00\00\00\00\00\00\00\00\00\00\00\00", ptr %b2, align 1
+  %46 = load i104, ptr %b1, align 1
+  %47 = load i104, ptr %b2, align 1
+  %and28 = and i104 %46, %47
+  store i104 %and28, ptr %0, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %b3, ptr align 1 %0, i32 13, i1 false)
+  %48 = load i8, ptr %b3, align 1
+  %49 = trunc i8 %48 to i1
+  %50 = zext i1 %49 to i8
+  store i8 %50, ptr %taddr30, align 1
+  %51 = insertvalue %any undef, ptr %taddr30, 0
+  %52 = insertvalue %any %51, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %52, ptr %varargslots29, align 16
+  %53 = load i8, ptr %b3, align 1
+  %lshrl31 = lshr i8 %53, 1
+  %54 = trunc i8 %lshrl31 to i1
+  %55 = zext i1 %54 to i8
+  store i8 %55, ptr %taddr32, align 1
+  %56 = insertvalue %any undef, ptr %taddr32, 0
+  %57 = insertvalue %any %56, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd33 = getelementptr inbounds i8, ptr %varargslots29, i64 16
+  store %any %57, ptr %ptradd33, align 16
+  %ptradd34 = getelementptr inbounds i8, ptr %b3, i64 3
+  %58 = load i8, ptr %ptradd34, align 1
+  %lshrl35 = lshr i8 %58, 1
+  %59 = trunc i8 %lshrl35 to i1
+  %60 = zext i1 %59 to i8
+  store i8 %60, ptr %taddr36, align 1
+  %61 = insertvalue %any undef, ptr %taddr36, 0
+  %62 = insertvalue %any %61, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd37 = getelementptr inbounds i8, ptr %varargslots29, i64 32
+  store %any %62, ptr %ptradd37, align 16
+  %63 = call i64 @std.io.printfn(ptr %retparam38, ptr @.str.4, i64 8, ptr %varargslots29, i64 3)
+  %64 = load i104, ptr %b3, align 1
+  %bnot39 = xor i104 %64, -1
+  store i104 %bnot39, ptr %1, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %b3, ptr align 1 %1, i32 13, i1 false)
+  %65 = load i8, ptr %b3, align 1
+  %66 = trunc i8 %65 to i1
+  %67 = zext i1 %66 to i8
+  store i8 %67, ptr %taddr41, align 1
+  %68 = insertvalue %any undef, ptr %taddr41, 0
+  %69 = insertvalue %any %68, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %69, ptr %varargslots40, align 16
+  %70 = load i8, ptr %b3, align 1
+  %lshrl42 = lshr i8 %70, 1
+  %71 = trunc i8 %lshrl42 to i1
+  %72 = zext i1 %71 to i8
+  store i8 %72, ptr %taddr43, align 1
+  %73 = insertvalue %any undef, ptr %taddr43, 0
+  %74 = insertvalue %any %73, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd44 = getelementptr inbounds i8, ptr %varargslots40, i64 16
+  store %any %74, ptr %ptradd44, align 16
+  %ptradd45 = getelementptr inbounds i8, ptr %b3, i64 3
+  %75 = load i8, ptr %ptradd45, align 1
+  %lshrl46 = lshr i8 %75, 1
+  %76 = trunc i8 %lshrl46 to i1
+  %77 = zext i1 %76 to i8
+  store i8 %77, ptr %taddr47, align 1
+  %78 = insertvalue %any undef, ptr %taddr47, 0
+  %79 = insertvalue %any %78, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd48 = getelementptr inbounds i8, ptr %varargslots40, i64 32
+  store %any %79, ptr %ptradd48, align 16
+  %80 = call i64 @std.io.printfn(ptr %retparam49, ptr @.str.5, i64 8, ptr %varargslots40, i64 3)
+  store [13 x i8] c"\03\00\00\00\00\00\00\00\00\00\00\00\00", ptr %taddr50, align 1
+  %81 = load i104, ptr %b3, align 1
+  %82 = load i104, ptr %taddr50, align 1
+  %xor51 = xor i104 %81, %82
+  store i104 %xor51, ptr %2, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %b3, ptr align 1 %2, i32 13, i1 false)
+  %83 = load i8, ptr %b3, align 1
+  %84 = trunc i8 %83 to i1
+  %85 = zext i1 %84 to i8
+  store i8 %85, ptr %taddr53, align 1
+  %86 = insertvalue %any undef, ptr %taddr53, 0
+  %87 = insertvalue %any %86, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %87, ptr %varargslots52, align 16
+  %88 = load i8, ptr %b3, align 1
+  %lshrl54 = lshr i8 %88, 1
+  %89 = trunc i8 %lshrl54 to i1
+  %90 = zext i1 %89 to i8
+  store i8 %90, ptr %taddr55, align 1
+  %91 = insertvalue %any undef, ptr %taddr55, 0
+  %92 = insertvalue %any %91, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd56 = getelementptr inbounds i8, ptr %varargslots52, i64 16
+  store %any %92, ptr %ptradd56, align 16
+  %ptradd57 = getelementptr inbounds i8, ptr %b3, i64 3
+  %93 = load i8, ptr %ptradd57, align 1
+  %lshrl58 = lshr i8 %93, 1
+  %94 = trunc i8 %lshrl58 to i1
+  %95 = zext i1 %94 to i8
+  store i8 %95, ptr %taddr59, align 1
+  %96 = insertvalue %any undef, ptr %taddr59, 0
+  %97 = insertvalue %any %96, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  %ptradd60 = getelementptr inbounds i8, ptr %varargslots52, i64 32
+  store %any %97, ptr %ptradd60, align 16
+  %98 = call i64 @std.io.printfn(ptr %retparam61, ptr @.str.6, i64 8, ptr %varargslots52, i64 3)
+  ret void
+}
+
diff --git a/test/test_suite7/bitstruct/bitstruct_overlap.c3 b/test/test_suite7/bitstruct/bitstruct_overlap.c3
new file mode 100644
index 000000000..bbee3b194
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_overlap.c3
@@ -0,0 +1,47 @@
+bitstruct Foo1 : char
+{
+    int a : 2..5;
+    int b : 5..6; // #error: Overlapping members
+}
+
+bitstruct Foo2 : char
+{
+    int a : 2..5;
+    int b : 4..6; // #error: Overlapping members
+}
+
+bitstruct Foo3 : char
+{
+    int a : 2..5;
+    int b : 2..6; // #error: Overlapping members
+}
+
+bitstruct Foo4 : char
+{
+    int a : 2..5;
+    int b : 1..6; // #error: Overlapping members
+}
+
+bitstruct Foo5 : char
+{
+    int a : 2..5;
+    int b : 1..3; // #error: Overlapping members
+}
+
+bitstruct Foo6 : char
+{
+    int a : 2..5;
+    int b : 1..1;
+}
+
+bitstruct Foo7 : char @overlap
+{
+    int a : 2..5;
+    int b : 1..3;
+}
+
+bitstruct Foo8 : char
+{
+    int a : 2..5;
+    bool b : 3; // #error: Overlapping members
+}
diff --git a/test/test_suite7/bitstruct/bitstruct_simple.c3 b/test/test_suite7/bitstruct/bitstruct_simple.c3
new file mode 100644
index 000000000..e9be8ab1c
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_simple.c3
@@ -0,0 +1,18 @@
+bitstruct Foo : char
+{
+	bool a;
+	int b;  // #error: For bitstructs without bit ranges, the types must all be 'bool'
+}
+
+bitstruct Foo2 : char
+{
+	bool a0;
+	bool a1;
+	bool a2;
+	bool a3;
+	bool a4;
+	bool a5;
+	bool a6;
+	bool a7;
+	bool a8; // #error: overflow
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_simple_err_decl.c3 b/test/test_suite7/bitstruct/bitstruct_simple_err_decl.c3
new file mode 100644
index 000000000..f4909c0ac
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_simple_err_decl.c3
@@ -0,0 +1,11 @@
+bitstruct Foo : char
+{
+	bool a : 1;
+	bool b; // #error: remove ranges from the other member
+}
+
+bitstruct Foo2 : char
+{
+	bool a;
+	bool b : 1; // #error: ranges to all other members
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_single_error.c3 b/test/test_suite7/bitstruct/bitstruct_single_error.c3
new file mode 100644
index 000000000..663cf196c
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_single_error.c3
@@ -0,0 +1,19 @@
+bitstruct Foo1 : char
+{
+    char x : 1..1;
+}
+
+bitstruct Foo2 : char
+{
+    char x : 1; // #error: Only booleans may use non-range indices
+}
+
+bitstruct Foo3 : char
+{
+    bool x : 0..2; // #error: The bit width of 'bool'
+}
+
+bitstruct Foo4 : int
+{
+    char x : 0..15; // #error: The bit width of 'char'
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/bitstruct_to_int.c3t b/test/test_suite7/bitstruct/bitstruct_to_int.c3t
new file mode 100644
index 000000000..5cb104e55
--- /dev/null
+++ b/test/test_suite7/bitstruct/bitstruct_to_int.c3t
@@ -0,0 +1,108 @@
+// #target: macos-x64
+
+module foo;
+
+extern fn void printf(char*, ...);
+
+bitstruct Foo : uint
+{
+    int x : 1..3;
+    uint y : 11..13;
+    int z : 15..15;
+}
+
+bitstruct Foo2 : char[4]
+{
+    int x : 1..3;
+    uint y : 11..13;
+    int z : 15..15;
+}
+
+fn void test()
+{
+    Foo b = {};
+    int x = (int)b;
+    char[4] y = bitcast(b, char[4]);
+    Foo *c = &b;
+    c.x;
+    int* x2 = (int*)c;
+    char[4]* y2 = (char[4]*)c;
+}
+
+fn void test2()
+{
+    Foo2 b = { 3, 2, -1 };
+    int x = bitcast(b, int);
+    char[4] y = (char[4])b;
+    Foo2 *c = &b;
+    printf("%d\n", c.x);
+    int* x2 = (int*)c;
+    char[4]* y2 = (char[4]*)c;
+}
+
+fn void main()
+{
+    test();
+    test2();
+}
+
+/* #expect: foo.ll
+
+define void @foo.test() #0 {
+entry:
+  %b = alloca i32, align 4
+  %x = alloca i32, align 4
+  %y = alloca [4 x i8], align 1
+  %expr = alloca i32, align 4
+  %c = alloca ptr, align 8
+  %x2 = alloca ptr, align 8
+  %y2 = alloca ptr, align 8
+  store i32 0, ptr %b, align 4
+  %0 = load i32, ptr %b, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %b, align 4
+  store i32 %1, ptr %expr, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %y, ptr align 1 %expr, i32 4, i1 false)
+  store ptr %b, ptr %c, align 8
+  %2 = load ptr, ptr %c, align 8
+  %3 = load i32, ptr %2, align 4
+  %shl = shl i32 %3, 28
+  %ashr = ashr i32 %shl, 29
+  %4 = load ptr, ptr %c, align 8
+  store ptr %4, ptr %x2, align 8
+  %5 = load ptr, ptr %c, align 8
+  store ptr %5, ptr %y2, align 8
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test2() #0 {
+entry:
+  %b = alloca [4 x i8], align 1
+  %x = alloca i32, align 4
+  %expr = alloca [4 x i8], align 1
+  %x1 = alloca i32, align 4
+  %y = alloca [4 x i8], align 1
+  %c = alloca ptr, align 8
+  %x2 = alloca ptr, align 8
+  %y2 = alloca ptr, align 8
+  store [4 x i8] c"\06\90\00\00", ptr %b, align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %expr, ptr align 1 %b, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %x1, ptr align 1 %expr, i64 4, i1 false)
+  %0 = load i32, ptr %x1, align 4
+  store i32 %0, ptr %x, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %y, ptr align 1 %b, i32 4, i1 false)
+  store ptr %b, ptr %c, align 8
+  %1 = load ptr, ptr %c, align 8
+  %2 = load i8, ptr %1, align 1
+  %zext = zext i8 %2 to i32
+  %lshrl = lshr i32 %zext, 1
+  %shl = shl i32 %lshrl, 29
+  %ashr = ashr i32 %shl, 29
+  call void (ptr, ...) @printf(ptr @.str, i32 %ashr)
+  %3 = load ptr, ptr %c, align 8
+  store ptr %3, ptr %x2, align 8
+  %4 = load ptr, ptr %c, align 8
+  store ptr %4, ptr %y2, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/designated_initializer_with_bitstruct.c3t b/test/test_suite7/bitstruct/designated_initializer_with_bitstruct.c3t
new file mode 100644
index 000000000..672bc81b0
--- /dev/null
+++ b/test/test_suite7/bitstruct/designated_initializer_with_bitstruct.c3t
@@ -0,0 +1,121 @@
+// #target: macos-x64
+module testing;
+import std::io;
+struct Foo
+{
+	bitstruct : ushort {
+	    short expand : 0..7;
+	}
+    void* widget;
+}
+
+struct Foo2
+{
+	bitstruct : char[2] {
+	    short expand : 0..7;
+	}
+    void* widget;
+}
+
+struct Foo3
+{
+	bitstruct : char[2] {
+		bool a : 0;
+	    short expand : 1..7;
+	    bool b : 8;
+	}
+    void* widget;
+}
+struct Foo4
+{
+	bitstruct : short {
+		bool a : 0;
+	    short expand : 1..7;
+	    bool b : 8;
+	}
+    void* widget;
+}
+
+fn void main()
+{
+	void* foo;
+	Foo *f = &&(Foo) { .expand = 2, .widget = &f };
+	Foo2 *f2 = &&(Foo2) { .expand = 2, .widget = &f };
+	Foo3 *f3 = &&(Foo3) { .expand = 2, .a = true, .b = true, .widget = &f };
+	Foo4 *f4 = &&(Foo4) { .expand = 2, .a = true, .b = true, .widget = &f };
+}
+
+/* #expect: testing.ll
+
+define void @testing.main() #0 {
+entry:
+  %foo = alloca ptr, align 8
+  %f = alloca ptr, align 8
+  %literal = alloca %Foo, align 8
+  %f2 = alloca ptr, align 8
+  %literal2 = alloca %Foo2, align 8
+  %f3 = alloca ptr, align 8
+  %literal6 = alloca %Foo3, align 8
+  %f4 = alloca ptr, align 8
+  %literal11 = alloca %Foo4, align 8
+  store ptr null, ptr %foo, align 8
+  store i16 0, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  store ptr null, ptr %ptradd, align 8
+  %0 = load i16, ptr %literal, align 8
+  %1 = and i16 %0, -256
+  %2 = or i16 %1, 2
+  store i16 %2, ptr %literal, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i64 8
+  store ptr %f, ptr %ptradd1, align 8
+  store ptr %literal, ptr %f, align 8
+  store i8 0, ptr %literal2, align 1
+  %ptradd3 = getelementptr inbounds i8, ptr %literal2, i64 1
+  store i8 0, ptr %ptradd3, align 1
+  %ptradd4 = getelementptr inbounds i8, ptr %literal2, i64 8
+  store ptr null, ptr %ptradd4, align 8
+  store i8 2, ptr %literal2, align 1
+  %ptradd5 = getelementptr inbounds i8, ptr %literal2, i64 8
+  store ptr %f, ptr %ptradd5, align 8
+  store ptr %literal2, ptr %f2, align 8
+  store i8 0, ptr %literal6, align 1
+  %ptradd7 = getelementptr inbounds i8, ptr %literal6, i64 1
+  store i8 0, ptr %ptradd7, align 1
+  %ptradd8 = getelementptr inbounds i8, ptr %literal6, i64 8
+  store ptr null, ptr %ptradd8, align 8
+  %3 = load i8, ptr %literal6, align 1
+  %4 = and i8 %3, 1
+  %5 = or i8 %4, 4
+  store i8 %5, ptr %literal6, align 1
+  %6 = load i8, ptr %literal6, align 1
+  %7 = and i8 %6, -2
+  %8 = or i8 %7, 1
+  store i8 %8, ptr %literal6, align 1
+  %ptradd9 = getelementptr inbounds i8, ptr %literal6, i64 1
+  %9 = load i8, ptr %ptradd9, align 1
+  %10 = and i8 %9, -2
+  %11 = or i8 %10, 1
+  store i8 %11, ptr %ptradd9, align 1
+  %ptradd10 = getelementptr inbounds i8, ptr %literal6, i64 8
+  store ptr %f, ptr %ptradd10, align 8
+  store ptr %literal6, ptr %f3, align 8
+  store i16 0, ptr %literal11, align 8
+  %ptradd12 = getelementptr inbounds i8, ptr %literal11, i64 8
+  store ptr null, ptr %ptradd12, align 8
+  %12 = load i16, ptr %literal11, align 8
+  %13 = and i16 %12, -255
+  %14 = or i16 %13, 4
+  store i16 %14, ptr %literal11, align 8
+  %15 = load i16, ptr %literal11, align 8
+  %16 = and i16 %15, -2
+  %17 = or i16 %16, 1
+  store i16 %17, ptr %literal11, align 8
+  %18 = load i16, ptr %literal11, align 8
+  %19 = and i16 %18, -257
+  %20 = or i16 %19, 256
+  store i16 %20, ptr %literal11, align 8
+  %ptradd13 = getelementptr inbounds i8, ptr %literal11, i64 8
+  store ptr %f, ptr %ptradd13, align 8
+  store ptr %literal11, ptr %f4, align 8
+  ret void
+}
diff --git a/test/test_suite7/bitstruct/embedded_bitstruct.c3t b/test/test_suite7/bitstruct/embedded_bitstruct.c3t
new file mode 100644
index 000000000..6ddc713f9
--- /dev/null
+++ b/test/test_suite7/bitstruct/embedded_bitstruct.c3t
@@ -0,0 +1,70 @@
+// #target: macos-x64
+module foo;
+
+struct Bar
+{
+    int x;
+    struct
+    {
+        struct
+        {
+            int y;
+        }
+    }
+    bitstruct : uint
+    {
+        int ww : 2..10;
+    }
+}
+
+struct Foo
+{
+    struct
+    {
+        struct
+        {
+            int x;
+        }
+        struct
+        {
+            int y;
+        }
+        int z;
+    }
+    int w;
+}
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    Bar b = { 1, 2, -5 };
+    printf("%d %d\n", b.y, b.ww);
+    Foo f = { 5, 6, 7, 8 };
+    printf("%d %d %d %d\n", f.x, f.y, f.z, f.w);
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %b = alloca %Bar, align 4
+  %f = alloca %Foo, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %b, ptr align 4 @.__const, i32 12, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %b, i64 4
+  %ptradd1 = getelementptr inbounds i8, ptr %b, i64 8
+  %0 = load i32, ptr %ptradd1, align 4
+  %shl = shl i32 %0, 21
+  %ashr = ashr i32 %shl, 23
+  %1 = load i32, ptr %ptradd, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %1, i32 %ashr)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %f, ptr align 4 @.__const.10, i32 16, i1 false)
+  %ptradd2 = getelementptr inbounds i8, ptr %f, i64 4
+  %ptradd3 = getelementptr inbounds i8, ptr %f, i64 8
+  %ptradd4 = getelementptr inbounds i8, ptr %f, i64 12
+  %2 = load i32, ptr %f, align 4
+  %3 = load i32, ptr %ptradd2, align 4
+  %4 = load i32, ptr %ptradd3, align 4
+  %5 = load i32, ptr %ptradd4, align 4
+  call void (ptr, ...) @printf(ptr @.str.11, i32 %2, i32 %3, i32 %4, i32 %5)
+  ret void
+}
diff --git a/test/test_suite7/bitstruct/invalid_bitstruct_member_types.c3 b/test/test_suite7/bitstruct/invalid_bitstruct_member_types.c3
new file mode 100644
index 000000000..95c33992d
--- /dev/null
+++ b/test/test_suite7/bitstruct/invalid_bitstruct_member_types.c3
@@ -0,0 +1,26 @@
+
+bitstruct Test : int
+{
+    bool x : 0..0;
+    float a : 1..3; // #error: 'float' is not supported in a bitstruct, only enums, integer and boolean values may be used.
+}
+
+distinct Baz = float;
+distinct Foo = bool;
+enum Boo
+{
+    BAR
+}
+bitstruct Test2 : int
+{
+    Foo x : 0..0;
+    Boo y : 4..6;
+    Baz a : 1..3; // #error: 'Baz' is not supported in a bitstruct, only enums, integer and boolean values may be used.
+}
+
+
+bitstruct Test3 : int
+{
+    Foo x : 0..0;
+    Brob a : 1..3; // #error: 'Brob' could not be found, did you spell it right?
+}
diff --git a/test/test_suite7/bitstruct/invalid_bitstruct_name_other_ident.c3 b/test/test_suite7/bitstruct/invalid_bitstruct_name_other_ident.c3
new file mode 100644
index 000000000..dda1db4e6
--- /dev/null
+++ b/test/test_suite7/bitstruct/invalid_bitstruct_name_other_ident.c3
@@ -0,0 +1,20 @@
+bitstruct test : int // #error: Names of bitstructs must start with an uppercase letter.
+{
+    int a : 1..3;
+    int b : 5..10;
+    uint c : 20..20;
+}
+
+bitstruct $if : int // #error: 'bitstruct' should be followed by the name of the bitstruct.
+{
+    int a : 1..3;
+    int b : 5..10;
+    uint c : 20..20;
+}
+
+bitstruct if : int // #error: Names of bitstructs must start with an uppercase letter.
+{
+    int a : 1..3;
+    int b : 5..10;
+    uint c : 20..20;
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/invalid_bitstruct_type.c3 b/test/test_suite7/bitstruct/invalid_bitstruct_type.c3
new file mode 100644
index 000000000..d4d616ec0
--- /dev/null
+++ b/test/test_suite7/bitstruct/invalid_bitstruct_type.c3
@@ -0,0 +1,7 @@
+
+bitstruct Test : float // #error: The type of the bitstruct cannot be 'float' but must be an integer or an array of integers.
+{
+    int a : 1..3;
+    int b : 5..10;
+    uint c : 20..20;
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/invalid_empty_struct_union.c3 b/test/test_suite7/bitstruct/invalid_empty_struct_union.c3
new file mode 100644
index 000000000..d51661a07
--- /dev/null
+++ b/test/test_suite7/bitstruct/invalid_empty_struct_union.c3
@@ -0,0 +1,7 @@
+struct Foo // #error: Zero sized structs are not permitted.
+{
+}
+
+union Bar // #error: Zero sized unions are not permitted.
+{
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/missing_bitstruct_type.c3 b/test/test_suite7/bitstruct/missing_bitstruct_type.c3
new file mode 100644
index 000000000..1b82e0c70
--- /dev/null
+++ b/test/test_suite7/bitstruct/missing_bitstruct_type.c3
@@ -0,0 +1,3 @@
+bitstruct BitField
+{ // #error: followed by bitstruct
+}
\ No newline at end of file
diff --git a/test/test_suite7/bitstruct/param_bitstruct.c3t b/test/test_suite7/bitstruct/param_bitstruct.c3t
new file mode 100644
index 000000000..61a580136
--- /dev/null
+++ b/test/test_suite7/bitstruct/param_bitstruct.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module foo;
+
+bitstruct Abc : uint
+{
+	bool x : 0;
+}
+
+fn void test(Abc x)
+{
+	x.x = false;
+}
+
+/* #expect: foo.ll
+
+define void @foo.test(i32 %0) #0 {
+entry:
+  %x = alloca i32, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %2 = and i32 %1, -2
+  store i32 %2, ptr %x, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/builtins/builtin_vector_abs.c3t b/test/test_suite7/builtins/builtin_vector_abs.c3t
new file mode 100644
index 000000000..2bfaff266
--- /dev/null
+++ b/test/test_suite7/builtins/builtin_vector_abs.c3t
@@ -0,0 +1,18 @@
+// #target: macos-x64
+module test;
+fn void main()
+{
+	{
+	float[<2>] vf1 = { 1, -1 };
+        float[<2>] absf = $$abs(vf1);
+	}
+	{
+        int[<2>] v1 = { 1, -1 };
+        int[<2>] absi = $$abs(v1);
+	}
+}
+
+/* #expect: test.ll
+
+  %1 = call <2 x float> @llvm.fabs.v2f32(<2 x float> %0)
+  %3 = call <2 x i32> @llvm.abs.v2i32(<2 x i32> %2, i1 false)
diff --git a/test/test_suite7/builtins/builtin_vector_min_max.c3t b/test/test_suite7/builtins/builtin_vector_min_max.c3t
new file mode 100644
index 000000000..ff05001aa
--- /dev/null
+++ b/test/test_suite7/builtins/builtin_vector_min_max.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module test;
+fn void main()
+{
+	{
+	    float[<2>] vf1 = { 1, -1 };
+        float[<2>] vf2 = { 1, 1 };
+        float[<2>] max = $$max(vf1, vf2);
+        float[<2>] min = $$min(vf1, vf2);
+	}
+	{
+        int[<2>] v1 = { 1, -1 };
+        int[<2>] v2 = { 1, 1 };
+        int[<2>] max = $$max(v1, v2);
+        int[<2>] min = $$min(v1, v2);
+	}
+}
+
+/* #expect: test.ll
+
+  %2 = call <2 x float> @llvm.maxnum.v2f32(<2 x float> %0, <2 x float> %1)
+  %5 = call <2 x float> @llvm.minnum.v2f32(<2 x float> %3, <2 x float> %4)
+  %8 = call <2 x i32> @llvm.smax.v2i32(<2 x i32> %6, <2 x i32> %7)
+  %11 = call <2 x i32> @llvm.smin.v2i32(<2 x i32> %9, <2 x i32> %10)
diff --git a/test/test_suite7/builtins/builtin_with_optional.c3 b/test/test_suite7/builtins/builtin_with_optional.c3
new file mode 100644
index 000000000..037fa3b5a
--- /dev/null
+++ b/test/test_suite7/builtins/builtin_with_optional.c3
@@ -0,0 +1,8 @@
+fn void main()
+{
+	float x;
+	x = $$fma(x, x, x);
+	float! y;
+	y = $$fma(x, x, y);
+	x = $$fma(x, x, y); // #error: 'float!'
+}
\ No newline at end of file
diff --git a/test/test_suite7/builtins/exacts.c3t b/test/test_suite7/builtins/exacts.c3t
new file mode 100644
index 000000000..9012d5d91
--- /dev/null
+++ b/test/test_suite7/builtins/exacts.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module test;
+import std::io;
+fn void main()
+{
+	ichar x = 23;
+	ichar y = 121;
+	int z1 = $$mul(x, y);
+	ichar z2 = $$div(y, x);
+	ichar z3 = $$mod(y, x);
+	int z4 = $$add(x, y);
+	int z5 = $$sub(x, y);
+	int z6 = $$neg(x);
+	io::printfn("%s %s %s %s %s %s", z1, z2, z3, z4, z5, z6);
+}
+
+/* #expect: test.ll
+
+  %emul = mul i8 %0, %1
+  %esdiv = sdiv i8 %2, %3
+  %eumod = srem i8 %4, %5
+  %eadd = add i8 %6, %7
+  %esub = sub i8 %8, %9
+  %eneg = sub i8 0, %10
\ No newline at end of file
diff --git a/test/test_suite7/builtins/mem.c3t b/test/test_suite7/builtins/mem.c3t
new file mode 100644
index 000000000..08c1ea6e1
--- /dev/null
+++ b/test/test_suite7/builtins/mem.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+    ushort src = 1;
+    ushort dst = 2;
+
+    $$memcpy(&dst, &src, ushort.sizeof, false, $alignof(dst), $alignof(src));
+    $$memmove(&dst, &src, ushort.sizeof, false, $alignof(dst), $alignof(src));
+    $$memset(&dst, 0u8, ushort.sizeof, false, $alignof(dst));
+
+    $$memcpy_inline(&dst, &src, ushort.sizeof, false, $alignof(dst), $alignof(src));
+    $$memset_inline(&dst, 0u8, ushort.sizeof, false, $alignof(dst));
+}
+
+/* #expect: test.ll
+
+  call void @llvm.memcpy.p0.p0.i64(ptr align 2 %dst, ptr align 2 %src, i64 2, i1 false)
+  call void @llvm.memmove.p0.p0.i64(ptr align 2 %dst, ptr align 2 %src, i64 2, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 2 %dst, i8 0, i64 2, i1 false)
+  call void @llvm.memcpy.inline.p0.p0.i64(ptr align 2 %dst, ptr align 2 %src, i64 2, i1 false)
+  call void @llvm.memset.inline.p0.i64(ptr align 2 %dst, i8 0, i64 2, i1 false)
diff --git a/test/test_suite7/builtins/overflows.c3t b/test/test_suite7/builtins/overflows.c3t
new file mode 100644
index 000000000..ac6267f04
--- /dev/null
+++ b/test/test_suite7/builtins/overflows.c3t
@@ -0,0 +1,66 @@
+module test;
+import std::io;
+fn void main()
+{
+	ichar x = 23;
+	ichar y = 121;
+	ichar z1;
+	ichar z2;
+	ichar z3;
+	ichar z4;
+	ichar z5;
+	bool success1 = $$overflow_mul(x, y, &z1);
+	bool success2 = $$overflow_add(x, y, &z2);
+	bool success3 = $$overflow_add(x, x, &z3);
+	bool success4 = $$overflow_sub($$neg(y), y, &z4);
+	bool success5 = $$overflow_sub(x, y, &z5);
+	io::printfn("%s %s", success1, z1);
+	io::printfn("%s %s", success2, z2);
+	io::printfn("%s %s", success3, z3);
+	io::printfn("%s %s", success4, z4);
+	io::printfn("%s %s", success5, z5);
+}
+
+/* #expect: test.ll
+
+  %0 = load i8, ptr %x, align 1
+  %1 = load i8, ptr %y, align 1
+  %2 = call { i8, i1 } @llvm.smul.with.overflow.i8(i8 %0, i8 %1)
+  %3 = extractvalue { i8, i1 } %2, 1
+  %4 = extractvalue { i8, i1 } %2, 0
+  store i8 %4, ptr %z1, align 1
+  %5 = zext i1 %3 to i8
+  store i8 %5, ptr %success1, align 1
+  %6 = load i8, ptr %x, align 1
+  %7 = load i8, ptr %y, align 1
+  %8 = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 %6, i8 %7)
+  %9 = extractvalue { i8, i1 } %8, 1
+  %10 = extractvalue { i8, i1 } %8, 0
+  store i8 %10, ptr %z2, align 1
+  %11 = zext i1 %9 to i8
+  store i8 %11, ptr %success2, align 1
+  %12 = load i8, ptr %x, align 1
+  %13 = load i8, ptr %x, align 1
+  %14 = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 %12, i8 %13)
+  %15 = extractvalue { i8, i1 } %14, 1
+  %16 = extractvalue { i8, i1 } %14, 0
+  store i8 %16, ptr %z3, align 1
+  %17 = zext i1 %15 to i8
+  store i8 %17, ptr %success3, align 1
+  %18 = load i8, ptr %y, align 1
+  %eneg = sub i8 0, %18
+  %19 = load i8, ptr %y, align 1
+  %20 = call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 %eneg, i8 %19)
+  %21 = extractvalue { i8, i1 } %20, 1
+  %22 = extractvalue { i8, i1 } %20, 0
+  store i8 %22, ptr %z4, align 1
+  %23 = zext i1 %21 to i8
+  store i8 %23, ptr %success4, align 1
+  %24 = load i8, ptr %x, align 1
+  %25 = load i8, ptr %y, align 1
+  %26 = call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 %24, i8 %25)
+  %27 = extractvalue { i8, i1 } %26, 1
+  %28 = extractvalue { i8, i1 } %26, 0
+  store i8 %28, ptr %z5, align 1
+  %29 = zext i1 %27 to i8
+  store i8 %29, ptr %success5, align 1
diff --git a/test/test_suite7/builtins/prefetch.c3t b/test/test_suite7/builtins/prefetch.c3t
new file mode 100644
index 000000000..4bb042e60
--- /dev/null
+++ b/test/test_suite7/builtins/prefetch.c3t
@@ -0,0 +1,19 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn void main()
+{
+	int a;
+	$$prefetch(&a, 1, 3);
+	$$prefetch(&a, 0, 1);
+	@prefetch(&a);
+}
+
+/* #expect: test.ll
+
+  %a = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  call void @llvm.prefetch.p0(ptr %a, i32 1, i32 3, i32 1)
+  call void @llvm.prefetch.p0(ptr %a, i32 0, i32 1, i32 1)
+  call void @llvm.prefetch.p0(ptr %a, i32 0, i32 3, i32 1)
diff --git a/test/test_suite7/builtins/reduce_arithmetics.c3t b/test/test_suite7/builtins/reduce_arithmetics.c3t
new file mode 100644
index 000000000..5a27bceff
--- /dev/null
+++ b/test/test_suite7/builtins/reduce_arithmetics.c3t
@@ -0,0 +1,43 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn void main()
+{
+	int a;
+	io::printfn("%s", $$pow_int((double[<2>]) { 23.3, 2.1 }, 3));
+	io::printfn("%s", $$reduce_add((int[<2>]) { 3, 10 }));
+	io::printfn("%s", $$reduce_fadd((double[<2>]) { 3, 10 }, -0.0));
+	io::printfn("%s", $$reduce_fadd((double[<2>]) { 3, 10 }, 3.2));
+	io::printfn("%s", $$reduce_mul((int[<2>]) { 3, 10 }));
+	io::printfn("%s", $$reduce_fmul((double[<2>]) { 3, 10 }, 3.4));
+	io::printfn("%s", $$reduce_and((int[<2>]) { 3, 11 }));
+	io::printfn("%s", $$reduce_or((int[<2>]) { 3, 10 }));
+	io::printfn("%s", $$reduce_xor((int[<2>]) { 3, 10 }));
+	io::printfn("%s", $$reduce_max((double[<2>]) { 23.2, 23.3 }));
+    io::printfn("%s", $$reduce_max((int[<2>]) { -23, 32 }));
+    io::printfn("%s", $$reduce_max((char[<2>]) { 4, 253 }));
+    io::printfn("%s", $$reduce_min((double[<2>]) { 23.2, 23.3 }));
+    io::printfn("%s", $$reduce_min((int[<2>]) { -23, 32 }));
+    io::printfn("%s", $$reduce_min((char[<2>]) { 4, 253 }));
+
+}
+
+/* #expect: test.ll
+
+
+  call <2 x double> @llvm.powi.v2f64.i32(<2 x double> <double 2.330000e+01, double 2.100000e+00>, i32 3)
+  call i32 @llvm.vector.reduce.add.v2i32(<2 x i32> <i32 3, i32 10>)
+  call double @llvm.vector.reduce.fadd.v2f64(double -0.000000e+00, <2 x double> <double 3.000000e+00, double 1.000000e+01>)
+  call double @llvm.vector.reduce.fadd.v2f64(double 3.200000e+00, <2 x double> <double 3.000000e+00, double 1.000000e+01>)
+  call i32 @llvm.vector.reduce.mul.v2i32(<2 x i32> <i32 3, i32 10>)
+  call double @llvm.vector.reduce.fmul.v2f64(double 3.400000e+00, <2 x double> <double 3.000000e+00, double 1.000000e+01>)
+  call i32 @llvm.vector.reduce.and.v2i32(<2 x i32> <i32 3, i32 11>)
+  call i32 @llvm.vector.reduce.or.v2i32(<2 x i32> <i32 3, i32 10>)
+  call i32 @llvm.vector.reduce.xor.v2i32(<2 x i32> <i32 3, i32 10>)
+  call double @llvm.vector.reduce.fmax.v2f64(<2 x double> <double 2.320000e+01, double 2.330000e+01>)
+  call i32 @llvm.vector.reduce.smax.v2i32(<2 x i32> <i32 -23, i32 32>)
+  call i8 @llvm.vector.reduce.umax.v2i8(<2 x i8> <i8 4, i8 -3>)
+  call double @llvm.vector.reduce.fmin.v2f64(<2 x double> <double 2.320000e+01, double 2.330000e+01>)
+  call i32 @llvm.vector.reduce.smin.v2i32(<2 x i32> <i32 -23, i32 32>)
+  call i8 @llvm.vector.reduce.umin.v2i8(<2 x i8> <i8 4, i8 -3>)
diff --git a/test/test_suite7/builtins/reverse_builtin.c3t b/test/test_suite7/builtins/reverse_builtin.c3t
new file mode 100644
index 000000000..effef43d0
--- /dev/null
+++ b/test/test_suite7/builtins/reverse_builtin.c3t
@@ -0,0 +1,14 @@
+// #target: macos-x64
+
+module test;
+import std::io;
+
+fn void main()
+{
+	int[<4>] a = { 1, -3, 5, -7 };
+	io::printfn("%s", $$reverse(a));
+}
+
+/* #expect: test.ll
+
+  %reverse = shufflevector <4 x i32> %0, <4 x i32> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
\ No newline at end of file
diff --git a/test/test_suite7/builtins/rounding_builtins.c3t b/test/test_suite7/builtins/rounding_builtins.c3t
new file mode 100644
index 000000000..d8a3b3e27
--- /dev/null
+++ b/test/test_suite7/builtins/rounding_builtins.c3t
@@ -0,0 +1,51 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+    double d = 1.2345;
+
+    double d1 = $$ceil(d);
+    double d2 = $$floor(d);
+//    double d3 = $$llrint(d);
+//    double d4 = $$llround(d);
+//    double d5 = $$lrint(d);
+//    double d6 = $$lround(d);
+    double d7 = $$nearbyint(d);
+    double d8 = $$rint(d);
+    double d9 = $$round(d);
+    double d10 = $$roundeven(d);
+
+    double[<2>] vd = { 1.2345, 0.6789 };
+
+    double[<2>] vd1 = $$ceil(vd);
+    double[<2>] vd2 = $$floor(vd);
+//    double[<2>] vd3 = $$llrint(vd);
+//    double[<2>] vd4 = $$llround(vd);
+//    double[<2>] vd5 = $$lrint(vd);
+//    double[<2>] vd6 = $$lround(vd);
+    double[<2>] vd7 = $$nearbyint(vd);
+    double[<2>] vd8 = $$rint(vd);
+    double[<2>] vd9 = $$round(vd);
+    double[<2>] vd10 = $$roundeven(vd);
+
+    $$set_rounding_mode(0);
+
+    return;
+}
+
+/* #expect: test.ll
+
+  %1 = call double @llvm.ceil.f64(double %0)
+  %3 = call double @llvm.floor.f64(double %2)
+  %5 = call double @llvm.nearbyint.f64(double %4)
+  %7 = call double @llvm.rint.f64(double %6)
+  %9 = call double @llvm.round.f64(double %8)
+  %11 = call double @llvm.roundeven.f64(double %10)
+  %13 = call <2 x double> @llvm.ceil.v2f64(<2 x double> %12)
+  %15 = call <2 x double> @llvm.floor.v2f64(<2 x double> %14)
+  %17 = call <2 x double> @llvm.nearbyint.v2f64(<2 x double> %16)
+  %19 = call <2 x double> @llvm.rint.v2f64(<2 x double> %18)
+  %21 = call <2 x double> @llvm.round.v2f64(<2 x double> %20)
+  %23 = call <2 x double> @llvm.roundeven.v2f64(<2 x double> %22)
+  call void @llvm.set.rounding(i32 0)
diff --git a/test/test_suite7/builtins/sat_builtins.c3t b/test/test_suite7/builtins/sat_builtins.c3t
new file mode 100644
index 000000000..4b41a6215
--- /dev/null
+++ b/test/test_suite7/builtins/sat_builtins.c3t
@@ -0,0 +1,38 @@
+// #target: macos-x64
+
+module test;
+import std::io;
+
+fn void main()
+{
+	char a = 123;
+	char b = 222;
+	io::printfn("%s %s", $$sat_add(a, b), $$sat_add((ichar)a, (ichar)30));
+	io::printfn("%s %s", $$sat_sub(a, b), $$sat_sub((ichar)-120, (ichar)10));
+	b = 3;
+	io::printfn("%s %s", $$sat_shl(a, b), $$sat_shl((ichar)a, (ichar)1));
+	b = 222;
+	char[<2>] x = { 123, 222 };
+	char[<2>] y = { 143, 50 };
+	ichar[<2>] z = { 120, -120 };
+	ichar[<2>] w = { -44, 30 };
+	io::printfn("%s %s", $$sat_add(x, y), $$sat_add(z, z));
+	io::printfn("%s %s", $$sat_sub(x, y), $$sat_sub(w, z));
+	io::printfn("%s %s", $$sat_shl(x, (char[<2>]) { 1, 1 }), $$sat_shl(z, (ichar[<2>]) { 1, 1 }));
+}
+
+/* #expect: test.ll
+
+
+  call i8 @llvm.uadd.sat.i8
+  call i8 @llvm.sadd.sat.i8
+  call i8 @llvm.usub.sat.i8
+  call i8 @llvm.ssub.sat.i8
+  call i8 @llvm.ushl.sat.i8
+  call i8 @llvm.sshl.sat.i8
+  call <2 x i8> @llvm.uadd.sat.v2i8
+  call <2 x i8> @llvm.sadd.sat.v2i8
+  call <2 x i8> @llvm.usub.sat.v2i8
+  call <2 x i8> @llvm.ssub.sat.v2i8
+  call <2 x i8> @llvm.ushl.sat.v2i8
+  call <2 x i8> @llvm.sshl.sat.v2i8
diff --git a/test/test_suite7/builtins/shufflevector.c3t b/test/test_suite7/builtins/shufflevector.c3t
new file mode 100644
index 000000000..4faa45d87
--- /dev/null
+++ b/test/test_suite7/builtins/shufflevector.c3t
@@ -0,0 +1,90 @@
+// #target: macos-x64
+
+module test;
+import std::io;
+
+struct Matrix2x2
+{
+	union
+	{
+		struct
+		{
+			float m00, m01;
+			float m10, m11;
+		}
+		struct
+		{
+			float[<2>] m0;
+			float[<2>] m1;
+		}
+		float[<4>] m;
+	}
+}
+
+fn float[<2>] apply1(Matrix2x2* mat, float[<2>] vec)
+{
+	return (float[<2>]) {
+		mat.m00 * vec[0] + mat.m01 * vec[1],
+		mat.m10 * vec[0] + mat.m11 * vec[1],
+	};
+}
+
+fn float[<2>] apply2(Matrix2x2* mat, float[<2>] vec)
+{
+	return (float[<2>]) {
+		mat.m0[0] * vec[0] + mat.m0[1] * vec[1],
+		mat.m1[0] * vec[0] + mat.m1[1] * vec[1],
+	};
+}
+
+fn float[<2>] apply3(Matrix2x2* mat, float[<2>] vec)
+{
+	float[<2>] a = $$swizzle2(mat.m0, mat.m1, 0, 3);
+	float[<2>] b = $$swizzle2(mat.m0, mat.m1, 1, 2);
+	float[<2>] flip = $$swizzle(vec, 1, 0);
+	return a * vec + b * flip;
+}
+
+
+fn void main()
+{
+	Matrix2x2 a = { 1, -3, 5, -7 };
+	io::printfn("1: %s", apply1(&a, (float[<2>]) { 11, 13 }));
+	io::printfn("2: %s", apply2(&a, (float[<2>]) { 11, 13 }));
+	io::printfn("3: %s", apply3(&a, (float[<2>]) { 11, 13 }));
+}
+
+/* #expect: test.ll
+
+define double @test.apply3(ptr %0, double %1) #0 {
+entry:
+  %vec = alloca <2 x float>, align 8
+  %a = alloca <2 x float>, align 8
+  %b = alloca <2 x float>, align 8
+  %flip = alloca <2 x float>, align 8
+  %taddr = alloca <2 x float>, align 8
+  store double %1, ptr %vec, align 8
+  %2 = load <2 x float>, ptr %0, align 16
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 8
+  %3 = load <2 x float>, ptr %ptradd, align 8
+  %shuffle = shufflevector <2 x float> %2, <2 x float> %3, <2 x i32> <i32 0, i32 3>
+  store <2 x float> %shuffle, ptr %a, align 8
+  %4 = load <2 x float>, ptr %0, align 16
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 8
+  %5 = load <2 x float>, ptr %ptradd1, align 8
+  %shuffle2 = shufflevector <2 x float> %4, <2 x float> %5, <2 x i32> <i32 1, i32 2>
+  store <2 x float> %shuffle2, ptr %b, align 8
+  %6 = load <2 x float>, ptr %vec, align 8
+  %shuffle3 = shufflevector <2 x float> %6, <2 x float> poison, <2 x i32> <i32 1, i32 0>
+  store <2 x float> %shuffle3, ptr %flip, align 8
+  %7 = load <2 x float>, ptr %a, align 8
+  %8 = load <2 x float>, ptr %vec, align 8
+  %fmul = fmul <2 x float> %7, %8
+  %9 = load <2 x float>, ptr %b, align 8
+  %10 = load <2 x float>, ptr %flip, align 8
+  %fmul4 = fmul <2 x float> %9, %10
+  %fadd = fadd <2 x float> %fmul, %fmul4
+  store <2 x float> %fadd, ptr %taddr, align 8
+  %11 = load double, ptr %taddr, align 8
+  ret double %11
+}
\ No newline at end of file
diff --git a/test/test_suite7/builtins/simple_builtins.c3t b/test/test_suite7/builtins/simple_builtins.c3t
new file mode 100644
index 000000000..b0e59e0f3
--- /dev/null
+++ b/test/test_suite7/builtins/simple_builtins.c3t
@@ -0,0 +1,61 @@
+// #target: macos-x64
+module foo;
+
+fn int foo(double b)
+{
+    double d = $$ceil(b);
+    double e = $$max(1.0, d);
+    double f = $$fma(d, 2.0, 3.0);
+    double m = $$fmuladd(d, 2.0, 3.0);
+    int xeb = 13;
+
+    int[3] abcd;
+    int sy = $$volatile_load(&xeb);
+    $$volatile_store(&xeb, sy + 1);
+    $$volatile_store(&abcd[2], sy + 2);
+    sy = $$volatile_load(&abcd[2]);
+    return 1;
+}
+
+/* #expect: foo.ll
+
+define i32 @foo.foo(double %0) #0 {
+entry:
+  %d = alloca double, align 8
+  %e = alloca double, align 8
+  %f = alloca double, align 8
+  %m = alloca double, align 8
+  %xeb = alloca i32, align 4
+  %abcd = alloca [3 x i32], align 4
+  %sy = alloca i32, align 4
+  %1 = call double @llvm.ceil.f64(double %0)
+  store double %1, ptr %d, align 8
+  %2 = load double, ptr %d, align 8
+  %3 = call double @llvm.maxnum.f64(double 1.000000e+00, double %2)
+  store double %3, ptr %e, align 8
+  %4 = load double, ptr %d, align 8
+  %5 = call double @llvm.fma.f64(double %4, double 2.000000e+00, double 3.000000e+00)
+  store double %5, ptr %f, align 8
+  %6 = load double, ptr %d, align 8
+  %7 = call double @llvm.fmuladd.f64(double %6, double 2.000000e+00, double 3.000000e+00)
+  store double %7, ptr %m, align 8
+  store i32 13, ptr %xeb, align 4
+  store i32 0, ptr %abcd, align 4
+  %ptradd = getelementptr inbounds i8, ptr %abcd, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %abcd, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  %8 = load volatile i32, ptr %xeb, align 4
+  store i32 %8, ptr %sy, align 4
+  %9 = load i32, ptr %sy, align 4
+  %add = add i32 %9, 1
+  store volatile i32 %add, ptr %xeb, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %abcd, i64 8
+  %10 = load i32, ptr %sy, align 4
+  %add3 = add i32 %10, 2
+  store volatile i32 %add3, ptr %ptradd2, align 4
+  %ptradd4 = getelementptr inbounds i8, ptr %abcd, i64 8
+  %11 = load volatile i32, ptr %ptradd4, align 4
+  store i32 %11, ptr %sy, align 4
+  ret i32 1
+}
diff --git a/test/test_suite7/builtins/trap.c3t b/test/test_suite7/builtins/trap.c3t
new file mode 100644
index 000000000..c2eb5bd07
--- /dev/null
+++ b/test/test_suite7/builtins/trap.c3t
@@ -0,0 +1,12 @@
+module test;
+
+fn void main()
+{
+    $$breakpoint();
+    $$trap();
+}
+
+/* #expect: test.ll
+
+  call void @llvm.debugtrap()
+  call void @llvm.trap()
diff --git a/test/test_suite7/builtins/unaligned_access.c3t b/test/test_suite7/builtins/unaligned_access.c3t
new file mode 100644
index 000000000..4963b6fcf
--- /dev/null
+++ b/test/test_suite7/builtins/unaligned_access.c3t
@@ -0,0 +1,82 @@
+// #target: macos-x64
+// #safe: yes
+module test;
+import std::io;
+
+fn int main()
+{
+    char[10] buf;
+
+    int* i = (int*)(&buf[1]);
+    int z = *i;
+    int z2 = @unaligned_load(*i, 1);
+    *i = 5;
+    @unaligned_store(*i, 6, 1);
+    int y = *i;
+
+    return 0;
+}
+
+/* #expect: test.ll
+
+  store ptr %ptradd9, ptr %i, align 8
+  %0 = load ptr, ptr %i, align 8
+  %checknull = icmp eq ptr %0, null
+  %1 = call i1 @llvm.expect.i1(i1 %checknull, i1 false)
+  br i1 %1, label %panic, label %checkok
+
+checkok:                                          ; preds = %entry
+  %2 = ptrtoint ptr %0 to i64
+  %3 = urem i64 %2, 4
+  %4 = icmp ne i64 %3, 0
+  %5 = call i1 @llvm.expect.i1(i1 %4, i1 false)
+  br i1 %5, label %panic10, label %checkok13
+
+checkok13:                                        ; preds = %checkok
+  %6 = load i32, ptr %0, align 4
+  store i32 %6, ptr %z, align 4
+  %7 = load ptr, ptr %i, align 8
+  %checknull14 = icmp eq ptr %7, null
+  %8 = call i1 @llvm.expect.i1(i1 %checknull14, i1 false)
+  br i1 %8, label %panic15, label %checkok16
+
+checkok16:                                        ; preds = %checkok13
+  %9 = load i32, ptr %7, align 1
+  store i32 %9, ptr %z2, align 4
+  %10 = load ptr, ptr %i, align 8
+  %checknull17 = icmp eq ptr %10, null
+  %11 = call i1 @llvm.expect.i1(i1 %checknull17, i1 false)
+  br i1 %11, label %panic18, label %checkok19
+
+checkok19:                                        ; preds = %checkok16
+  %12 = ptrtoint ptr %10 to i64
+  %13 = urem i64 %12, 4
+  %14 = icmp ne i64 %13, 0
+  %15 = call i1 @llvm.expect.i1(i1 %14, i1 false)
+  br i1 %15, label %panic20, label %checkok27
+
+checkok27:                                        ; preds = %checkok19
+  store i32 5, ptr %10, align 4
+  %16 = load ptr, ptr %i, align 8
+  %checknull28 = icmp eq ptr %16, null
+  %17 = call i1 @llvm.expect.i1(i1 %checknull28, i1 false)
+  br i1 %17, label %panic29, label %checkok30
+
+checkok30:                                        ; preds = %checkok27
+  store i32 6, ptr %16, align 1
+  %18 = load ptr, ptr %i, align 8
+  %checknull31 = icmp eq ptr %18, null
+  %19 = call i1 @llvm.expect.i1(i1 %checknull31, i1 false)
+  br i1 %19, label %panic32, label %checkok33
+
+checkok33:                                        ; preds = %checkok30
+  %20 = ptrtoint ptr %18 to i64
+  %21 = urem i64 %20, 4
+  %22 = icmp ne i64 %21, 0
+  %23 = call i1 @llvm.expect.i1(i1 %22, i1 false)
+  br i1 %23, label %panic34, label %checkok41
+
+checkok41:                                        ; preds = %checkok33
+  %24 = load i32, ptr %18, align 4
+  store i32 %24, ptr %y, align 4
+  ret i32 0
diff --git a/test/test_suite7/builtins/unaligned_load_store.c3t b/test/test_suite7/builtins/unaligned_load_store.c3t
new file mode 100644
index 000000000..c4aa12992
--- /dev/null
+++ b/test/test_suite7/builtins/unaligned_load_store.c3t
@@ -0,0 +1,54 @@
+module test;
+
+struct Foo
+{
+  float[4] a;
+}
+
+fn void main()
+{
+  Foo* foo;
+  float[<4>] a @align(1) @noinit;
+  float[<4>] b @align(1) @noinit;
+
+  a = *(float[<4>]*)&foo.a;
+  *(float[<4>]*)&foo.a = a;
+
+  a = $$unaligned_load((float[<4>]*)&foo.a, 1);
+  $$unaligned_store((float[<4>]*)&foo.a, a, 1);
+
+  b = @unaligned_load(*(float[<4>]*)&foo.a, 1);
+  @unaligned_store(*(float[<4>]*)&foo.a, b, 1);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %foo = alloca ptr, align 8
+  %a = alloca <4 x float>, align 1
+  %b = alloca <4 x float>, align 1
+  %value = alloca <4 x float>, align 16
+  store ptr null, ptr %foo, align 8
+  %0 = load ptr, ptr %foo, align 8
+  %1 = load <4 x float>, ptr %0, align 16
+  store <4 x float> %1, ptr %a, align 1
+  %2 = load ptr, ptr %foo, align 8
+  %3 = load <4 x float>, ptr %a, align 1
+  store <4 x float> %3, ptr %2, align 16
+  %4 = load ptr, ptr %foo, align 8
+  %5 = load <4 x float>, ptr %4, align 1
+  store <4 x float> %5, ptr %a, align 1
+  %6 = load ptr, ptr %foo, align 8
+  %7 = load <4 x float>, ptr %a, align 1
+  store <4 x float> %7, ptr %6, align 1
+  %8 = load ptr, ptr %foo, align 8
+  %9 = load <4 x float>, ptr %8, align 1
+  store <4 x float> %9, ptr %b, align 1
+  %10 = load <4 x float>, ptr %b, align 1
+  store <4 x float> %10, ptr %value, align 16
+  %11 = load ptr, ptr %foo, align 8
+  %12 = load <4 x float>, ptr %value, align 16
+  store <4 x float> %12, ptr %11, align 1
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/cast_bitstruct_etc.c3t b/test/test_suite7/cast/cast_bitstruct_etc.c3t
new file mode 100644
index 000000000..c99822a61
--- /dev/null
+++ b/test/test_suite7/cast/cast_bitstruct_etc.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+	Enum e = ENUM1;
+	ushort x = (ushort)(Foo){ .x = e };
+	Foo z = (Foo)(ushort)(Foo) { .x = e };
+}
+
+enum Enum : char
+{
+	ENUM1,
+}
+
+bitstruct Foo : ushort
+{
+	Enum x : 0..7;
+}
+
+/* #expect: test.ll
+
+  %e = alloca i8, align 1
+  %x = alloca i16, align 2
+  %z = alloca i16, align 2
+  store i8 0, ptr %e, align 1
+  %0 = load i8, ptr %e, align 1
+  %zext = zext i8 %0 to i16
+  %1 = and i16 %zext, 255
+  store i16 %1, ptr %x, align 2
+  %2 = load i8, ptr %e, align 1
+  %zext1 = zext i8 %2 to i16
+  %3 = and i16 %zext1, 255
+  store i16 %3, ptr %z, align 2
diff --git a/test/test_suite7/cast/cast_from_ptr.c3t b/test/test_suite7/cast/cast_from_ptr.c3t
new file mode 100644
index 000000000..9c692b6ba
--- /dev/null
+++ b/test/test_suite7/cast/cast_from_ptr.c3t
@@ -0,0 +1,22 @@
+module test;
+
+fn void tester()
+{
+    int *x;
+    short y = (short)((uptr)(x));
+    uptr z = (uptr)((short)((uptr)(x)));
+}
+
+/* #expect: test.ll
+
+  %x = alloca ptr, align 8
+  %y = alloca i16, align 2
+  %z = alloca i64, align 8
+  store ptr null, ptr %x, align 8
+  %0 = load ptr, ptr %x, align 8
+  %ptrxi = ptrtoint ptr %0 to i16
+  store i16 %ptrxi, ptr %y, align 2
+  %1 = load ptr, ptr %x, align 8
+  %ptrxi1 = ptrtoint ptr %1 to i16
+  %sext = sext i16 %ptrxi1 to i64
+  store i64 %sext, ptr %z, align 8
diff --git a/test/test_suite7/cast/cast_narrow_alias.c3t b/test/test_suite7/cast/cast_narrow_alias.c3t
new file mode 100644
index 000000000..c20d40af7
--- /dev/null
+++ b/test/test_suite7/cast/cast_narrow_alias.c3t
@@ -0,0 +1,26 @@
+// #target: macos-x64
+module abc;
+def UInt8 = char;
+fn void main()
+{
+	UInt8 x = 17;
+	UInt8 y = 5;
+	UInt8 z = (x >> y) & 0x1;
+}
+/* #expect: abc.ll
+
+entry:
+  %x = alloca i8, align 1
+  %y = alloca i8, align 1
+  %z = alloca i8, align 1
+  store i8 17, ptr %x, align 1
+  store i8 5, ptr %y, align 1
+  %0 = load i8, ptr %x, align 1
+  %zext = zext i8 %0 to i32
+  %1 = load i8, ptr %y, align 1
+  %zext1 = zext i8 %1 to i32
+  %lshr = lshr i32 %zext, %zext1
+  %2 = freeze i32 %lshr
+  %and = and i32 %2, 1
+  %trunc = trunc i32 %and to i8
+  store i8 %trunc, ptr %z, align 1
diff --git a/test/test_suite7/cast/cast_ok.c3 b/test/test_suite7/cast/cast_ok.c3
new file mode 100644
index 000000000..8c2b57223
--- /dev/null
+++ b/test/test_suite7/cast/cast_ok.c3
@@ -0,0 +1,11 @@
+struct Foo { int a; }
+
+fn void test4()
+{
+    int x = (int)(32);
+}
+
+fn void test5()
+{
+    Foo x = (Foo)((Foo){32});
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/cast_parse_fails.c3 b/test/test_suite7/cast/cast_parse_fails.c3
new file mode 100644
index 000000000..8a6c90a47
--- /dev/null
+++ b/test/test_suite7/cast/cast_parse_fails.c3
@@ -0,0 +1,13 @@
+struct Foo { int a; }
+
+fn void test2()
+{
+    int x = (int){ 32 };    // #error: 'int' with a non-empty initializer list
+}
+
+fn void test3()
+{
+    int x = int(32);    // #error: A type cannot be followed by (), if you intended a cast, use '(type) expression'
+}
+
+
diff --git a/test/test_suite7/cast/cast_parse_fails2.c3 b/test/test_suite7/cast/cast_parse_fails2.c3
new file mode 100644
index 000000000..883deaee8
--- /dev/null
+++ b/test/test_suite7/cast/cast_parse_fails2.c3
@@ -0,0 +1,8 @@
+
+struct Foo { int a; }
+
+fn void test1()
+{
+    (Foo)({ 32 });
+    Foo({ 32 }); // #error: A type cannot be followed by (), if you intended a cast, use '(type) expression'
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/cast_ptr_vec_to_bool.c3t b/test/test_suite7/cast/cast_ptr_vec_to_bool.c3t
new file mode 100644
index 000000000..2865abb8a
--- /dev/null
+++ b/test/test_suite7/cast/cast_ptr_vec_to_bool.c3t
@@ -0,0 +1,25 @@
+// #target: macos-x64
+module test;
+fn void main()
+{
+	int xd;
+	void*[<2>] x = { &xd, null };
+	bool[<2>] y = (bool[<2>])x;
+}
+
+/* #expect: test.ll
+
+entry:
+  %xd = alloca i32, align 4
+  %x = alloca <2 x ptr>, align 16
+  %y = alloca <2 x i8>, align 2
+  store i32 0, ptr %xd, align 4
+  %0 = insertelement <2 x ptr> undef, ptr %xd, i64 0
+  %1 = insertelement <2 x ptr> %0, ptr null, i64 1
+  store <2 x ptr> %1, ptr %x, align 16
+  %2 = load <2 x ptr>, ptr %x, align 16
+  %i2b = icmp ne <2 x ptr> %2, zeroinitializer
+  %3 = sext <2 x i1> %i2b to <2 x i8>
+  store <2 x i8> %3, ptr %y, align 2
+  ret void
+}
diff --git a/test/test_suite7/cast/cast_rcast.c3 b/test/test_suite7/cast/cast_rcast.c3
new file mode 100644
index 000000000..92484c037
--- /dev/null
+++ b/test/test_suite7/cast/cast_rcast.c3
@@ -0,0 +1,19 @@
+module test;
+// Issue #1811
+bitstruct Image_Tag : uint
+{
+  char x1 : 24..31;
+  char x2 : 16..23;
+  char x3 : 8..15;
+  char x4 : 0..7;
+}
+
+distinct Glyph_Format = CInt;
+const Glyph_Format GLYPH_FORMAT_BITMAP = (Glyph_Format)(Image_Tag) {'b', 'i', 't', 's'};
+
+fn void main() {
+  // Error: Implicitly casting 'Image_Tag' to 'Glyph_Format' is not permitted
+  Glyph_Format format = GLYPH_FORMAT_BITMAP;
+  // Error: 'Glyph_Format' and 'Image_Tag' are different types and cannot be compared.
+  assert(format == GLYPH_FORMAT_BITMAP);
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/cast_slice_implicit.c3 b/test/test_suite7/cast/cast_slice_implicit.c3
new file mode 100644
index 000000000..f07f1a10f
--- /dev/null
+++ b/test/test_suite7/cast/cast_slice_implicit.c3
@@ -0,0 +1,7 @@
+fn void foo()
+{
+	int[] array;
+	int* ptr = array;
+	void* ptr2 = &array;
+	int* ptr3 = &array; // #error: is not permitted
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/cast_string_to_infered_array.c3 b/test/test_suite7/cast/cast_string_to_infered_array.c3
new file mode 100644
index 000000000..3a89fdcc8
--- /dev/null
+++ b/test/test_suite7/cast/cast_string_to_infered_array.c3
@@ -0,0 +1,6 @@
+import std;
+fn void main()
+{
+	char[?]* x = "abc"; // #error: You cannot cast 'String' to 'char[?]*'
+	io::printn($typeof(x).nameof);
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/cast_struct.c3 b/test/test_suite7/cast/cast_struct.c3
new file mode 100644
index 000000000..210ae5045
--- /dev/null
+++ b/test/test_suite7/cast/cast_struct.c3
@@ -0,0 +1,37 @@
+struct Foo
+{
+    int a;
+    float b;
+}
+
+struct Bar
+{
+    int b;
+    float c;
+}
+
+struct Baz
+{
+    int b;
+    int c;
+}
+
+struct BazTwo
+{
+    int[1] d;
+    int e;
+}
+
+fn void test()
+{
+    Foo x;
+    Bar y = (Bar)(x); // #error: 'Foo' to 'Bar'
+
+    Baz z;
+    int[2] w = (int[2])(z); // #error: 'Baz' to 'int[2]'
+    z = (Baz)(w);
+    BazTwo v = (BazTwo)(z); // #error: 'Baz' to 'BazTwo'
+    v = (BazTwo)(w);
+    z = (Baz)(v);
+    w = (int[2])(v);
+}
diff --git a/test/test_suite7/cast/cast_struct_fails.c3 b/test/test_suite7/cast/cast_struct_fails.c3
new file mode 100644
index 000000000..85e4a08b4
--- /dev/null
+++ b/test/test_suite7/cast/cast_struct_fails.c3
@@ -0,0 +1,35 @@
+struct Foo
+{
+    int a;
+    float b;
+}
+
+struct Bar
+{
+    int b;
+    float c;
+}
+
+struct Baz
+{
+    int b;
+    int c;
+}
+
+struct BazTwo
+{
+    int[2] d;
+    int e;
+}
+
+fn void test1()
+{
+    Foo x;
+    Bar z = (Baz)(x); // #error: 'Foo' to 'Baz'
+}
+fn void test2()
+{
+    Baz x;
+    BazTwo z = (BazTwo)(x); // #error: 'Baz' to 'BazTwo'
+}
+
diff --git a/test/test_suite7/cast/cast_subarray.c3t b/test/test_suite7/cast/cast_subarray.c3t
new file mode 100644
index 000000000..3ed733ca8
--- /dev/null
+++ b/test/test_suite7/cast/cast_subarray.c3t
@@ -0,0 +1,32 @@
+// #target: macos-x64
+module test;
+
+distinct Foo = int;
+fn void main()
+{
+	int*[] abc = { };
+	void*[] bcd = (void*[]) abc;
+	int[] cde = {};
+	Foo[] xyz = (Foo[])cde;
+	Foo[] xyz2 = (Foo[])(int[]) { 1, 2 };
+}
+
+/* #expect: test.ll
+
+entry:
+  %abc = alloca %"int*[]", align 8
+  %bcd = alloca %"void*[]", align 8
+  %cde = alloca %"int[]", align 8
+  %xyz = alloca %"int[]", align 8
+  %xyz2 = alloca %"int[]", align 8
+  %literal = alloca [2 x i32], align 4
+  store %"int*[]" zeroinitializer, ptr %abc, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %bcd, ptr align 8 %abc, i32 16, i1 false)
+  store %"int[]" zeroinitializer, ptr %cde, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %xyz, ptr align 8 %cde, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 8, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[]" %0, i64 2, 1
+  store %"int[]" %1, ptr %xyz2, align 8
+  ret void
+}
diff --git a/test/test_suite7/cast/cast_to_failable.c3 b/test/test_suite7/cast/cast_to_failable.c3
new file mode 100644
index 000000000..0625d48c4
--- /dev/null
+++ b/test/test_suite7/cast/cast_to_failable.c3
@@ -0,0 +1,14 @@
+fault MyErr
+{
+    FOO
+}
+
+fn void test()
+{
+    int! x;
+    double! y;
+    int! d = ($typeof(MyErr.FOO?))(x); // #error: Casting to an optional
+    int! df = ($typeof(y))(x); // #error: Casting to an optional type is not allowed
+    double! df2 = ($typeof(y!!))(x);
+}
+
diff --git a/test/test_suite7/cast/cast_untyped_list_error.c3 b/test/test_suite7/cast/cast_untyped_list_error.c3
new file mode 100644
index 000000000..76cfc73e6
--- /dev/null
+++ b/test/test_suite7/cast/cast_untyped_list_error.c3
@@ -0,0 +1,6 @@
+module testing;
+
+fn void main()
+{
+	(void){}; // #error: You cannot use 'void' with an initializer list
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/implicit_array_ptr_conv.c3 b/test/test_suite7/cast/implicit_array_ptr_conv.c3
new file mode 100644
index 000000000..311caa1bd
--- /dev/null
+++ b/test/test_suite7/cast/implicit_array_ptr_conv.c3
@@ -0,0 +1,12 @@
+module test;
+
+fn void test(int[5]* x) {}
+fn void test2(int* x) {}
+
+fn int main()
+{
+    int[5][5] y;
+    test(&y);
+    test2(&y);
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/implicit_infer_len_cast.c3t b/test/test_suite7/cast/implicit_infer_len_cast.c3t
new file mode 100644
index 000000000..69ea02de2
--- /dev/null
+++ b/test/test_suite7/cast/implicit_infer_len_cast.c3t
@@ -0,0 +1,45 @@
+// #target: macos-x64
+module test;
+
+macro int test(int[?][?]* y)
+{
+	$typeof(*y) z = *y;
+	return z[1][1];
+}
+fn void main()
+{
+	int[2][?] x = { { 2, 3}, { 5, 6 }};
+	int[<2>][?] y = { { 1, 3 }};
+	int[<?>][?] z = y;
+	int[<2>][1] w = z;
+	int[<2>][] aa = { { 1, 3 }};
+	int[][?] bb = { { 1, 3 } };
+	test(&x);
+}
+/* #expect: test.ll
+
+  %x = alloca [2 x [2 x i32]], align 16
+  %y = alloca [1 x <2 x i32>], align 8
+  %z = alloca [1 x <2 x i32>], align 8
+  %w = alloca [1 x <2 x i32>], align 8
+  %aa = alloca %"int[<2>][]", align 8
+  %literal = alloca [1 x <2 x i32>], align 8
+  %bb = alloca [1 x %"int[]"], align 16
+  %literal1 = alloca [2 x i32], align 4
+  %z2 = alloca [2 x [2 x i32]], align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x, ptr align 16 @.__const, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %y, ptr align 8 @.__const.1, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %z, ptr align 8 %y, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %w, ptr align 8 %z, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.2, i32 8, i1 false)
+  %0 = insertvalue %"int[<2>][]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[<2>][]" %0, i64 1, 1
+  store %"int[<2>][]" %1, ptr %aa, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal1, ptr align 4 @.__const.3, i32 8, i1 false)
+  %2 = insertvalue %"int[]" undef, ptr %literal1, 0
+  %3 = insertvalue %"int[]" %2, i64 2, 1
+  store %"int[]" %3, ptr %bb, align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %z2, ptr align 4 %x, i32 16, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %z2, i64 8
+  %ptradd3 = getelementptr inbounds i8, ptr %ptradd, i64 4
+  ret void
diff --git a/test/test_suite7/cast/implicit_void_ptr_deep.c3 b/test/test_suite7/cast/implicit_void_ptr_deep.c3
new file mode 100644
index 000000000..46b829c1f
--- /dev/null
+++ b/test/test_suite7/cast/implicit_void_ptr_deep.c3
@@ -0,0 +1,7 @@
+fn void main()
+{
+	int** y;
+	int* z;
+	void** x = y;
+	void** z2 = z; // #error: Implicitly casting
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/inner_type_cast.c3 b/test/test_suite7/cast/inner_type_cast.c3
new file mode 100644
index 000000000..ec015cad4
--- /dev/null
+++ b/test/test_suite7/cast/inner_type_cast.c3
@@ -0,0 +1,21 @@
+module test;
+
+struct Foo
+{
+	bitstruct abc : int
+	{
+		bool a;
+	}
+}
+
+fn void test1()
+{
+	Foo x;
+	x.abc = "abc"; // #error: to the inner type 'Foo.abc'
+}
+
+fn void test2()
+{
+	Foo x;
+	x.abc = 2; // #error: type 'Foo.abc' is not permitted, but you may do an explicit
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/top_down_cast_fails.c3 b/test/test_suite7/cast/top_down_cast_fails.c3
new file mode 100644
index 000000000..c2c2bea63
--- /dev/null
+++ b/test/test_suite7/cast/top_down_cast_fails.c3
@@ -0,0 +1,29 @@
+fn void test()
+{
+    int x;
+    int y;
+    long z = x * (long)y;
+    z = x * y + z; // #error: 'long'
+    z = x * y + x; // #error: 'long'
+    z = x / y;
+    z = (long)x + y;
+    z = (long)x - y;
+    z = x % y;
+    z = x / y + z;
+    z = x + y + z; // #error: 'long'
+    z = x - y + z; // #error: 'long'
+    z = x % y + z;
+    z = x / y + x; // #error: 'long'
+    z = x + y + x; // #error: 'long'
+    z = x - y + x; // #error: 'long'
+    z = x % y + x; // #error: 'long'
+
+    z = x << y + x; // #error: 'long'
+    z = x >> y + x; // #error: 'long'
+    z = x << y + z; // #error: 'long'
+    z = x >> y + z; // #error: 'long'
+    z = ~x + x; // #error: 'long'
+    z = ~x + z; // #error: 'long'
+    z = -x + z; // #error: 'long'
+    z = x + z;
+}
\ No newline at end of file
diff --git a/test/test_suite7/cast/top_down_casts.c3t b/test/test_suite7/cast/top_down_casts.c3t
new file mode 100644
index 000000000..80bbf9ce4
--- /dev/null
+++ b/test/test_suite7/cast/top_down_casts.c3t
@@ -0,0 +1,98 @@
+fn void test()
+{
+    int x;
+    int y;
+    long z = (long)x * y;
+    z = x / y;
+    z = (long)x + y;
+    z = (long)x - y;
+    z = x % y;
+    z = (long)x << y;
+    z = (long)x >> y;
+    z = (long)~x;
+    z = (long)-x;
+    int! w;
+    z = w ?? 1;
+}
+
+/* #expect: top_down_casts.ll
+
+define void @top_down_casts.test() #0 {
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %z = alloca i64, align 8
+  %w = alloca i32, align 4
+  %w.f = alloca i64, align 8
+  store i32 0, ptr %x, align 4
+  store i32 0, ptr %y, align 4
+  %0 = load i32, ptr %x, align 4
+  %sext = sext i32 %0 to i64
+  %1 = load i32, ptr %y, align 4
+  %sext1 = sext i32 %1 to i64
+  %mul = mul i64 %sext, %sext1
+  store i64 %mul, ptr %z, align 8
+  %2 = load i32, ptr %x, align 4
+  %3 = load i32, ptr %y, align 4
+  %sdiv = sdiv i32 %2, %3
+  %sext2 = sext i32 %sdiv to i64
+  store i64 %sext2, ptr %z, align 8
+  %4 = load i32, ptr %x, align 4
+  %sext3 = sext i32 %4 to i64
+  %5 = load i32, ptr %y, align 4
+  %sext4 = sext i32 %5 to i64
+  %add = add i64 %sext3, %sext4
+  store i64 %add, ptr %z, align 8
+  %6 = load i32, ptr %x, align 4
+  %sext5 = sext i32 %6 to i64
+  %7 = load i32, ptr %y, align 4
+  %sext6 = sext i32 %7 to i64
+  %sub = sub i64 %sext5, %sext6
+  store i64 %sub, ptr %z, align 8
+  %8 = load i32, ptr %x, align 4
+  %9 = load i32, ptr %y, align 4
+  %smod = srem i32 %8, %9
+  %sext7 = sext i32 %smod to i64
+  store i64 %sext7, ptr %z, align 8
+  %10 = load i32, ptr %x, align 4
+  %sext8 = sext i32 %10 to i64
+  %11 = load i32, ptr %y, align 4
+  %zext = zext i32 %11 to i64
+  %shl = shl i64 %sext8, %zext
+  %12 = freeze i64 %shl
+  store i64 %12, ptr %z, align 8
+  %13 = load i32, ptr %x, align 4
+  %sext9 = sext i32 %13 to i64
+  %14 = load i32, ptr %y, align 4
+  %zext10 = zext i32 %14 to i64
+  %ashr = ashr i64 %sext9, %zext10
+  %15 = freeze i64 %ashr
+  store i64 %15, ptr %z, align 8
+  %16 = load i32, ptr %x, align 4
+  %bnot = xor i32 %16, -1
+  %sext11 = sext i32 %bnot to i64
+  store i64 %sext11, ptr %z, align 8
+  %17 = load i32, ptr %x, align 4
+  %neg = sub i32 0, %17
+  %sext12 = sext i32 %neg to i64
+  store i64 %sext12, ptr %z, align 8
+  store i64 0, ptr %w.f, align 8
+  store i32 0, ptr %w, align 4
+  %optval = load i64, ptr %w.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %18, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %19 = load i32, ptr %w, align 4
+  %sext13 = sext i32 %19 to i64
+  br label %phi_block
+
+else_block:                                       ; preds = %entry
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %after_check
+  %val = phi i64 [ %sext13, %after_check ], [ 1, %else_block ]
+  store i64 %val, ptr %z, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/clang/2002-01_02.c3t b/test/test_suite7/clang/2002-01_02.c3t
new file mode 100644
index 000000000..50d88fe44
--- /dev/null
+++ b/test/test_suite7/clang/2002-01_02.c3t
@@ -0,0 +1,355 @@
+// #target: macos-x64
+module test;
+
+struct Foo { int x, y; }
+Foo[10] array;
+
+fn void foo() {}
+
+extern fn void *dlclose(void*);
+
+fn void ap_os_dso_unload(void *handle)
+{
+    dlclose(handle);
+    return;
+}
+
+extern fn void foo2(int, double, float);
+
+fn void bar(int x) {
+  foo2(x, x ? 1.0 : 12.5, 1.0f);
+}
+
+extern fn int tolower(int);
+
+fn char *rangematch(char *pattern, int teste, int c) {
+
+  if ((c <= teste) | (tolower(c) <= tolower((char)(teste)))) return (char*)(0);
+
+  return pattern;
+}
+
+struct Foostruct {
+  short x;
+}
+
+extern fn int foo3(Foostruct ic);
+
+fn void teste2() {
+  Foostruct xqic;
+  foo3(xqic);
+}
+
+struct Vertex
+{
+    float a, b, c;
+}
+struct Edge_rec
+{
+  Vertex *v;
+  Edge_rec *next;
+  int wasseen;
+  int more_data;
+}
+
+def QuadEdge = Edge_rec*;
+
+struct EdgePair {
+  QuadEdge left, right;
+}
+
+struct EdgeStack {
+    int ptr;
+    QuadEdge *elts;
+    int stack_size;
+}
+
+fn int do_merge(QuadEdge ldo, QuadEdge rdo) {
+  int lvalid;
+  QuadEdge basel;
+  QuadEdge rcand;
+  while (1) {
+    if (!lvalid) {
+      return (int)((iptr)(basel.next));
+    }
+  }
+}
+
+fn int test(int x) {
+  return x;
+}
+
+extern fn void abc(int *x);
+fn int deff(int y, int z) {
+  abc(&z);
+  return y;
+}
+
+struct Test { short x, x2; int y, z; }
+
+fn int testing(Test *a) {
+  return a.x2+a.y;
+}
+
+fn int test2(int x, Test a, int y) {
+  return x+y+a.x2+a.y;
+}
+fn int test3(Test a, Test b) {
+  return a.x2+a.y+b.y+b.z;
+}
+
+fn Test test4(Test a) {
+  return a;
+}
+
+fn int test6() {
+  int[200] b;
+  return b[4];
+}
+
+struct STest2 { int x; short[4] y; double z; }
+
+fn STest2 test7(STest2 x) {
+  return x;
+}
+
+extern fn int printf(char * format, ...);
+
+fn int main2() {
+  long v = 123455678902i64;
+  printf("%lld\n", v);
+  return 1;
+}
+
+double afoo = 17;
+double abar = 12.0;
+float axx = 12.0f;
+
+char*[?] procnames = {
+  "EXIT"
+};
+
+void *[?] data = { &afoo, &abar, &axx };
+
+/* #expect: test.ll
+
+%Foo = type { i32, i32 }
+%Foostruct = type { i16 }
+%Test = type { i16, i16, i32, i32 }
+%STest2 = type { i32, [4 x i16], double }
+
+@test.array = local_unnamed_addr global [10 x %Foo] zeroinitializer, align 16
+@test.afoo = global double 1.700000e+01, align 8
+@test.abar = global double 1.200000e+01, align 8
+@test.axx = global float 1.200000e+01, align 4
+@.str = private unnamed_addr constant [5 x i8] c"EXIT\00", align 1
+@test.procnames = local_unnamed_addr global [1 x ptr] [ptr @.str], align 8
+@test.data = local_unnamed_addr global [3 x ptr] [ptr @test.afoo, ptr @test.abar, ptr @test.axx], align 16
+@.str.6 = private unnamed_addr constant [6 x i8] c"%lld\0A\00", align 1
+
+; Function Attrs:
+define void @test.foo() #0 {
+entry:
+  ret void
+}
+
+; Function Attrs:
+declare ptr @dlclose(ptr) #0
+
+; Function Attrs:
+define void @test.ap_os_dso_unload(ptr %0) #0 {
+entry:
+  %1 = call ptr @dlclose(ptr %0)
+  ret void
+}
+
+; Function Attrs:
+declare void @foo2(i32, double, float) #0
+
+; Function Attrs:
+define void @test.bar(i32 %0) #0 {
+entry:
+  %i2b = icmp ne i32 %0, 0
+  %ternary = select i1 %i2b, double 1.000000e+00, double 1.250000e+01
+  call void @foo2(i32 %0, double %ternary, float 1.000000e+00)
+  ret void
+}
+
+; Function Attrs:
+declare i32 @tolower(i32) #0
+
+; Function Attrs:
+define ptr @test.rangematch(ptr %0, i32 %1, i32 %2) #0 {
+entry:
+  %le = icmp sle i32 %2, %1
+  %3 = call i32 @tolower(i32 %2)
+  %trunc = trunc i32 %1 to i8
+  %zext = zext i8 %trunc to i32
+  %4 = call i32 @tolower(i32 %zext)
+  %le1 = icmp sle i32 %3, %4
+  %or = or i1 %le, %le1
+  br i1 %or, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret ptr null
+
+if.exit:                                          ; preds = %entry
+  ret ptr %0
+}
+
+; Function Attrs:
+declare i32 @foo3(i16) #0
+
+; Function Attrs:
+define void @test.teste2() #0 {
+entry:
+  %xqic = alloca %Foostruct, align 2
+  store i16 0, ptr %xqic, align 2
+  %0 = load i16, ptr %xqic, align 2
+  %1 = call i32 @foo3(i16 %0)
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.do_merge(ptr %0, ptr %1) #0 {
+entry:
+  %lvalid = alloca i32, align 4
+  %basel = alloca ptr, align 8
+  %rcand = alloca ptr, align 8
+  store i32 0, ptr %lvalid, align 4
+  store ptr null, ptr %basel, align 8
+  store ptr null, ptr %rcand, align 8
+  br label %loop.body
+
+loop.body:                                        ; preds = %if.exit, %entry
+  %2 = load i32, ptr %lvalid, align 4
+  %i2nb = icmp eq i32 %2, 0
+  br i1 %i2nb, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  %3 = load ptr, ptr %basel, align 8
+  %ptradd = getelementptr inbounds i8, ptr %3, i64 8
+  %4 = load ptr, ptr %ptradd, align 8
+  %ptrxi = ptrtoint ptr %4 to i32
+  ret i32 %ptrxi
+
+if.exit:                                          ; preds = %loop.body
+  br label %loop.body
+}
+
+; Function Attrs:
+define i32 @test.test(i32 %0) #0 {
+entry:
+  ret i32 %0
+}
+
+; Function Attrs:
+declare void @abc(ptr) #0
+
+; Function Attrs:
+define i32 @test.deff(i32 %0, i32 %1) #0 {
+entry:
+  %z = alloca i32, align 4
+  store i32 %1, ptr %z, align 4
+  call void @abc(ptr %z)
+  ret i32 %0
+}
+
+; Function Attrs:
+define i32 @test.testing(ptr %0) #0 {
+entry:
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 2
+  %1 = load i16, ptr %ptradd, align 2
+  %sext = sext i16 %1 to i32
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 4
+  %2 = load i32, ptr %ptradd1, align 4
+  %add = add i32 %sext, %2
+  ret i32 %add
+}
+
+; Function Attrs:
+define i32 @test.test2(i32 %0, i64 %1, i32 %2, i32 %3) #0 {
+entry:
+  %a = alloca %Test, align 8
+  store i64 %1, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i32 %2, ptr %ptradd, align 8
+  %add = add i32 %0, %3
+  %ptradd1 = getelementptr inbounds i8, ptr %a, i64 2
+  %4 = load i16, ptr %ptradd1, align 2
+  %sext = sext i16 %4 to i32
+  %add2 = add i32 %add, %sext
+  %ptradd3 = getelementptr inbounds i8, ptr %a, i64 4
+  %5 = load i32, ptr %ptradd3, align 4
+  %add4 = add i32 %add2, %5
+  ret i32 %add4
+}
+
+; Function Attrs:
+define i32 @test.test3(i64 %0, i32 %1, i64 %2, i32 %3) #0 {
+entry:
+  %a = alloca %Test, align 8
+  %b = alloca %Test, align 8
+  store i64 %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i32 %1, ptr %ptradd, align 8
+  store i64 %2, ptr %b, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %b, i64 8
+  store i32 %3, ptr %ptradd1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %a, i64 2
+  %4 = load i16, ptr %ptradd2, align 2
+  %sext = sext i16 %4 to i32
+  %ptradd3 = getelementptr inbounds i8, ptr %a, i64 4
+  %5 = load i32, ptr %ptradd3, align 4
+  %add = add i32 %sext, %5
+  %ptradd4 = getelementptr inbounds i8, ptr %b, i64 4
+  %6 = load i32, ptr %ptradd4, align 4
+  %add5 = add i32 %add, %6
+  %ptradd6 = getelementptr inbounds i8, ptr %b, i64 8
+  %7 = load i32, ptr %ptradd6, align 8
+  %add7 = add i32 %add5, %7
+  ret i32 %add7
+}
+
+; Function Attrs:
+define { i64, i32 } @test.test4(i64 %0, i32 %1) #0 {
+entry:
+  %a = alloca %Test, align 8
+  %tempcoerce = alloca { i64, i32 }, align 8
+  store i64 %0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 8
+  store i32 %1, ptr %ptradd, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tempcoerce, ptr align 8 %a, i32 12, i1 false)
+  %2 = load { i64, i32 }, ptr %tempcoerce, align 8
+  ret { i64, i32 } %2
+}
+
+; Function Attrs:
+define i32 @test.test6() #0 {
+entry:
+  %b = alloca [200 x i32], align 16
+  call void @llvm.memset.p0.i64(ptr align 16 %b, i8 0, i64 800, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %b, i64 16
+  %0 = load i32, ptr %ptradd, align 4
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.test7(ptr noalias sret(%STest2) align 8 %0, ptr byval(%STest2) align 8 %1) #0 {
+entry:
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %1, i32 24, i1 false)
+  ret void
+}
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+define i32 @test.main2() #0 {
+entry:
+  %v = alloca i64, align 8
+  store i64 123455678902, ptr %v, align 8
+  %0 = load i64, ptr %v, align 8
+  %1 = call i32 (ptr, ...) @printf(ptr @.str.6, i64 %0)
+  ret i32 1
+}
diff --git a/test/test_suite7/clang/2002-03.c3t b/test/test_suite7/clang/2002-03.c3t
new file mode 100644
index 000000000..ab572335a
--- /dev/null
+++ b/test/test_suite7/clang/2002-03.c3t
@@ -0,0 +1,96 @@
+// #target: macos-x64
+module test;
+extern fn int strcmp(char *s1, char *s2);
+
+fn int test(char *x) {
+  /* LLVM-GCC used to emit:
+     %.LC0 = internal global [3 x sbyte] c"\1F\FFFFFF8B\00"
+   */
+  return strcmp(x, "\x1f\x8B");
+}
+
+int[10] a = { [0] = 0, [1] = 2 };
+
+char[10] str = "x";
+
+void*[5] arr = { [0] = null, [1] = null };
+
+float[12] f = { [0] = 1.23f, [1] = 34.7f };
+
+struct Test { int x; double y; }
+
+Test[10] array = { [0] = { 2, 12.0 }, [1] = { 3, 24.0 } };
+
+int[4][4] b = { [0] = { 1, 2, 3, 4}, [1] = { [0] = 5, [1] = 6, [2] = 7 }, [2] = { [0] = 8, [1] = 9 } };
+
+struct Connection {
+   long    to;
+   char[10]   type;
+   long    length;
+}
+
+Connection[3] link
+= { {1, "link1", 10},
+    {2, "link2", 20},
+    {3, "link3", 30} };
+
+
+fn int trys(char *s, int x)
+{
+  int asa;
+  double val;
+  int lLS;
+  if (x) {
+    asa = lLS + asa;
+  } else {
+  }
+  return asa+(int)(val);
+}
+
+fn char* foo() {
+  return "*** Word \"%s\" on line %d is not";
+}
+
+/* #expect: test.ll
+
+@test.a = local_unnamed_addr global { i32, i32, [8 x i32] } { i32 0, i32 2, [8 x i32] zeroinitializer }, align 16
+@test.str = local_unnamed_addr global [10 x i8] c"x\00\00\00\00\00\00\00\00\00", align 1
+@test.arr = local_unnamed_addr global { ptr, ptr, [3 x ptr] } zeroinitializer, align 16
+@test.f = local_unnamed_addr global { float, float, [10 x float] } { float 0x3FF3AE1480000000, float 0x40415999A0000000, [10 x float] zeroinitializer }, align 16
+@test.array = local_unnamed_addr global { %Test, %Test, [8 x %Test] } { %Test { i32 2, double 1.200000e+01 }, %Test { i32 3, double 2.400000e+01 }, [8 x %Test] zeroinitializer }, align 16
+@test.b = local_unnamed_addr global { [4 x i32], [4 x i32], { i32, i32, [2 x i32] }, [4 x i32] } { [4 x i32] [i32 1, i32 2, i32 3, i32 4], [4 x i32] [i32 5, i32 6, i32 7, i32 0], { i32, i32, [2 x i32] } { i32 8, i32 9, [2 x i32] zeroinitializer }, [4 x i32] zeroinitializer }, align 16
+@test.link = local_unnamed_addr global [3 x %Connection] [%Connection { i64 1, [10 x i8] c"link1\00\00\00\00\00", i64 10 }, %Connection { i64 2, [10 x i8] c"link2\00\00\00\00\00", i64 20 }, %Connection { i64 3, [10 x i8] c"link3\00\00\00\00\00", i64 30 }], align 16
+@.str = private unnamed_addr constant [4 x i8] c"\1F\C2\8B\00", align 1
+@.str.7 = private unnamed_addr constant [32 x i8] c"*** Word \22%s\22 on line %d is not\00", align 1
+
+declare i32 @strcmp(ptr, ptr) #0
+
+define i32 @test.test(ptr %0) #0 {
+entry:
+  %1 = call i32 @strcmp(ptr %0, ptr @.str)
+  ret i32 %1
+}
+
+define i32 @test.trys(ptr %0, i32 %1) #0 {
+entry:
+  %asa = alloca i32, align 4
+  %val = alloca double, align 8
+  %lLS = alloca i32, align 4
+  store i32 0, ptr %asa, align 4
+  store double 0.000000e+00, ptr %val, align 8
+  store i32 0, ptr %lLS, align 4
+  %i2b = icmp ne i32 %1, 0
+  br i1 %i2b, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  %2 = load i32, ptr %lLS, align 4
+  %3 = load i32, ptr %asa, align 4
+  %add = add i32 %2, %3
+  store i32 %add, ptr %asa, align 4
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %entry
+  %4 = load i32, ptr %asa, align 4
+  %5 = load double, ptr %val, align 8
+  %fpsi = fptosi double %5 to i32
+  %add1 = add i32 %4, %fpsi
+  ret i32 %add1
+}
diff --git a/test/test_suite7/clang/2002-04.c3t b/test/test_suite7/clang/2002-04.c3t
new file mode 100644
index 000000000..864a3264d
--- /dev/null
+++ b/test/test_suite7/clang/2002-04.c3t
@@ -0,0 +1,168 @@
+// #target: macos-x64
+module test;
+extern fn int printf(char *, ...);
+extern fn int foo();
+
+fn int main2() {
+  while (foo()) {
+     switch (foo()) {
+     case 0:
+     case 1:
+     case 2:
+     case 3:
+       printf("3");
+       nextcase;
+     case 4: printf("4"); nextcase;
+     case 5:
+     case 6:
+     default:
+     }
+   }
+   return 0;
+}
+
+fn double test(uint x)
+{
+  double[30] student_t={0.0 , 12.706 , 4.303 , 3.182 , 2.776 , 2.571 ,
+                               2.447 , 2.365 , 2.306 , 2.262 , 2.228 ,
+                               2.201 , 2.179 , 2.160 , 2.145 , 2.131 ,
+                               2.120 , 2.110 , 2.101 , 2.093 , 2.086 ,
+                               2.080 , 2.074 , 2.069 , 2.064 , 2.060 ,
+                               2.056 , 2.052 , 2.048 , 2.045 };
+  return student_t[x];
+}
+
+struct St {
+  int i;
+  short s1, s2;
+}
+
+extern fn St func_returning_struct();
+
+fn void loop() {
+  func_returning_struct();
+}
+
+struct FooSt {
+  char p;
+  short q;
+  char r;
+  int x;
+  short y, z;
+  int q2;
+}
+
+extern fn int testF(FooSt x, float);
+extern fn int testE(char,short,char,int,int,float);
+fn void test3(FooSt *x) {
+  x.q = 1;
+}
+
+fn void test2(FooSt y) {
+  testE(y.p, y.q, y.r, y.x, y.y, 0.1f);
+  testF(y, 0.1f);
+  test2(y);
+  test3(&y);
+}
+
+/* #expect: test.ll
+
+
+define i32 @test.main2() #0 {
+entry:
+  %switch = alloca i32, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %switch.exit, %entry
+  %0 = call i32 @foo()
+  %i2b = icmp ne i32 %0, 0
+  br i1 %i2b, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = call i32 @foo()
+  store i32 %1, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %loop.body
+  %2 = load i32, ptr %switch, align 4
+  switch i32 %2, label %switch.exit [
+    i32 0, label %switch.case
+    i32 1, label %switch.case
+    i32 2, label %switch.case
+    i32 3, label %switch.case
+    i32 4, label %switch.case1
+    i32 5, label %switch.exit
+    i32 6, label %switch.exit
+  ]
+
+switch.case:                                      ; preds = %switch.entry, %switch.entry, %switch.entry, %switch.entry
+  %3 = call i32 (ptr, ...) @printf(ptr @.str)
+  br label %switch.case1
+
+switch.case1:                                     ; preds = %switch.entry, %switch.case
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.entry, %switch.entry, %switch.case1, %switch.entry
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret i32 0
+}
+
+; Function Attrs:
+define double @test.test(i32 %0) #0 {
+entry:
+  %student_t = alloca [30 x double], align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %student_t, ptr align 16 @.__const, i32 240, i1 false)
+  %zext = zext i32 %0 to i64
+  %ptroffset = getelementptr inbounds [8 x i8], ptr %student_t, i64 %zext
+  %1 = load double, ptr %ptroffset, align 8
+  ret double %1
+}
+
+define void @test.loop() #0 {
+entry:
+  %result = alloca %St, align 4
+  %0 = call i64 @func_returning_struct()
+  store i64 %0, ptr %result, align 4
+  ret void
+}
+
+; Function Attrs:
+declare i32 @testF(ptr byval(%FooSt) align 8, float) #0
+
+; Function Attrs:
+declare i32 @testE(i8 zeroext, i16 signext, i8 zeroext, i32, i32, float) #0
+
+; Function Attrs:
+define void @test.test3(ptr %0) #0 {
+entry:
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 2
+  store i16 1, ptr %ptradd, align 2
+  ret void
+}
+
+; Function Attrs:
+define void @test.test2(ptr byval(%FooSt) align 8 %0) #0 {
+entry:
+  %indirectarg = alloca %FooSt, align 8
+  %indirectarg4 = alloca %FooSt, align 8
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 2
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 4
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i64 8
+  %ptradd3 = getelementptr inbounds i8, ptr %0, i64 12
+  %1 = load i16, ptr %ptradd3, align 4
+  %sext = sext i16 %1 to i32
+  %2 = load i8, ptr %0, align 4
+  %3 = load i16, ptr %ptradd, align 2
+  %4 = load i8, ptr %ptradd1, align 4
+  %5 = load i32, ptr %ptradd2, align 4
+  %6 = call i32 @testE(i8 zeroext %2, i16 signext %3, i8 zeroext %4, i32 %5, i32 %sext, float 0x3FB99999A0000000)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 4 %0, i32 20, i1 false)
+  %7 = call i32 @testF(ptr byval(%FooSt) align 8 %indirectarg, float 0x3FB99999A0000000)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg4, ptr align 4 %0, i32 20, i1 false)
+  call void @test.test2(ptr byval(%FooSt) align 8 %indirectarg4)
+  call void @test.test3(ptr %0)
+  ret void
+}
diff --git a/test/test_suite7/clang/2002-07.c3t b/test/test_suite7/clang/2002-07.c3t
new file mode 100644
index 000000000..abb40af09
--- /dev/null
+++ b/test/test_suite7/clang/2002-07.c3t
@@ -0,0 +1,992 @@
+// #target: macos-x64
+module foo;
+
+extern fn void* malloc(uint);
+
+struct List
+{
+  int data;
+  List* next;
+}
+
+fn List* passThroughList(List* l) {
+  return l;
+}
+
+// Recursive data structure tests...
+
+List* data;
+
+fn void foo()
+{
+  static int foo = 0;            // Test static local variable
+  foo += 1;                      // Increment static variable
+
+  data = (List*)malloc(12);      // This is not a proper list allocation
+}
+
+List listNode3 = { 4, null          };
+List listNode2 = { 3, &listNode3 };
+List listNode0 = { 1, &listNode1 };
+List listNode1 = { 2, &listNode2 };
+
+
+List[10] listArray;
+
+// Iterative insert fn
+fn void insertIntoListTail(List **l, int data) {
+  while (*l) l = &(*l).next;
+  *l = (List*)malloc(List.sizeof);
+  (*l).data = data;
+  (*l).next = null;
+}
+
+// Recursive list search fn
+fn List *findData(List *l, int data) {
+  if (!l) return null;
+  if (l.data == data) return l;
+  return findData(l.next, data);
+}
+
+extern fn void foundIt();
+
+// Driver fn...
+fn void doListStuff() {
+  List* myList = null;
+  insertIntoListTail(&myList, 100);
+  insertIntoListTail(&myList, 12);
+  insertIntoListTail(&myList, 42);
+  insertIntoListTail(&myList, 1123);
+  insertIntoListTail(&myList, 1213);
+
+  if (findData(myList, 75)) foundIt();
+  if (findData(myList, 42)) foundIt();
+  if (findData(myList, 700)) foundIt();
+}
+
+
+fn int floatcomptest(double *x, double *y, float *x1, float *y1) {
+  return (int)(*x < *y || *x1 < *y1);
+}
+
+// Exposed a bug
+fn void* memset_impl(void* dstpp, int c, uint len)
+{
+  iptr dstp = (iptr)dstpp;
+
+  while (dstp % 4 != 0)
+    {
+      ((char*)dstp)[0] = (char)c;
+      dstp += 1;
+      len -= 1;
+    }
+  return dstpp;
+}
+
+// TEST problem with signed/unsigned versions of the same constants being shared
+// incorrectly!
+char* temp @private;
+int remaining @private;
+fn char* localmalloc(int size) @private {
+  char* blah;
+
+  if (size>remaining)
+    {
+      temp = (char*) malloc(32768);
+      remaining = 32768;
+      return temp;
+    }
+  return null;
+}
+
+
+struct PBVTest { double x; double y; int z; }
+
+fn PBVTest testRetStruct(float x, double y, int z) {
+  PBVTest t = { x, y, z };
+  return t;
+}
+extern fn PBVTest testRetStruct2();  // external func no inlining
+
+
+fn double callRetStruct(float x, double y, int z) {
+  PBVTest t = testRetStruct2();
+  return t.x+x+y+z;
+}
+
+extern fn int fp(int, char*);
+char *ext;
+fn void __bb_exit_func()
+{
+    fp(12, ext ? ext : "<none>");
+}
+
+extern fn int puts(char* s);
+
+struct FunStructTest
+{
+	int test1;
+	char* pointer;
+	int[12] array;
+}
+
+struct SubStruct {
+  short x, y;
+}
+
+struct Quad {
+  int w;
+  SubStruct ss;
+  SubStruct *ssp;
+  char c;
+  int y;
+}
+
+Quad globalQuad = { 4, {1, 2}, null, 3, 156 };
+
+def FuncPtr = fn int(int);
+
+fn uint ptrFunc(FuncPtr func, int x) {
+  return func(x);
+}
+
+fn char ptrFunc2(FuncPtr[30] funcTab, int num) {
+  return (char)funcTab[num]('b');
+}
+
+extern fn char smallArgs2(char w, char x, long zrrk, char y, char z);
+extern fn int someFuncA();
+fn char smallArgs(char w, char x, char y, char z) {
+  someFuncA();
+  return smallArgs2(w-1, x+1, y, z, w);
+}
+
+fn int f0(Quad q, int i) @private {              /* Pass Q by value */
+  Quad r @noinit;
+  if (i) r.ss = q.ss;
+  q.ssp = &r.ss;
+  q.w = q.y = q.c = 1;
+  return q.ss.y + i + r.y - q.c;
+}
+
+fn int f1(Quad *q, int i) {             /* Pass Q by address */
+  Quad r @noinit;
+  if (i) r = *q;
+  q.w = q.y = q.c = 1;
+  return q.ss.y+i+r.y-q.c;
+}
+
+
+fn int badFunc(float val) {
+  int result @noinit;
+  if (val > 12.345) result = 4;
+  return result;     /* Test use of undefined value */
+}
+
+extern fn int ef1(int *, char *, int *);
+
+fn int func(int param, long param2) {
+  int result = param;
+
+  {{{{
+      char c @noinit; int x @noinit;
+      ef1(&result, &c, &x);
+    }}}
+
+    {   // c & X are duplicate names!
+      char c; int x;
+      ef1(&result, &c, &x);
+    }
+
+  }
+  return result;
+}
+
+
+fn short funFunc(long x, char z) {
+  return (short)(x+z);
+}
+
+fn uint castTest(int x) { return x; }
+
+fn double testAdd(double x, float y) {
+  return x+y+0.5;
+}
+
+fn int funcZ(int i, int j) {
+  while (i != 20) i += 2;
+
+  j += funcZ(2, i);
+  return (i * 3 + j*2)*j;
+}
+
+fn int sumArray(int* array, int num) {
+  int i @noinit;
+  int result = 0;
+  for (i = 0; i < num; ++i) result += array[i];
+  return result;
+}
+
+fn int arrayParam(int* values) {
+  return ef1((int*)(iptr)values[50], (char*)1, &values[50]);
+}
+
+fn int arrayToSum() {
+  int[100] a @noinit;
+  int i;
+  for (i = 0; i < 100; ++i) a[i] = i*4;
+
+  return a[a[0]]; //SumArray(A, 100);
+}
+
+
+extern fn int externFunc(long, uint*, short, char);
+
+fn int main(int argc, char **argv)
+{
+	uint i @noinit;
+	puts("Hello world!\n");
+
+	externFunc(-1, null, (short)argc, 2);
+	//func(argc, argc);
+
+	for (i = 0; i < 10; i++) puts(argv[3]);
+	return 0;
+}
+
+fn double mathFunc(double x, double y, double z,
+                double aa, double bb, double cc, double dd,
+                double ee, double ff, double gg, double hh,
+                double aaa, double abb, double acc, double add,
+                double aee, double aff) {
+  return x + y + z + aa + bb + cc + dd + ee + ff + gg + hh
+       + aaa + abb + acc + add + aee + aff;
+}
+
+
+
+fn void strcpy(char *s1, char *s2) {
+  while (*s1++ = *s2++);
+}
+
+fn void strcat(char *s1, char *s2) {
+  while (*s1++);
+  s1--;
+  while (*s1++ = *s2++);
+}
+
+fn int strcmp(char *s1, char *s2) {
+  while (*s1++ == *s2++);
+  if (*s1 == 0) {
+    if (*s2 == 0) {
+      return 0;
+    } else {
+      return -1;
+    }
+  } else {
+    if (*s2 == 0) {
+      return 1;
+    } else {
+      return (*(--s1) - *(--s2));
+    }
+  }
+}
+
+/* #expect: foo.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%List = type { i32, ptr }
+%Quad = type { i32, %SubStruct, ptr, i8, i32 }
+%SubStruct = type { i16, i16 }
+%PBVTest = type { double, double, i32 }
+@"$ct.foo.List" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.PBVTest" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 24, i64 0, i64 3, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.FunStructTest" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 64, i64 0, i64 3, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.SubStruct" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.Quad" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 24, i64 0, i64 5, [0 x i64] zeroinitializer }, align 8
+@foo.data = local_unnamed_addr global ptr null, align 8
+@foo.listNode3 = global %List { i32 4, ptr null }, align 8
+@foo.listNode2 = global %List { i32 3, ptr @foo.listNode3 }, align 8
+@foo.listNode0 = local_unnamed_addr global %List { i32 1, ptr @foo.listNode1 }, align 8
+@foo.listNode1 = global %List { i32 2, ptr @foo.listNode2 }, align 8
+@foo.listArray = local_unnamed_addr global [10 x %List] zeroinitializer, align 16
+@foo.temp = internal unnamed_addr global ptr null, align 8
+@foo.remaining = internal unnamed_addr global i32 0, align 4
+@foo.ext = local_unnamed_addr global ptr null, align 8
+@foo.globalQuad = local_unnamed_addr global %Quad { i32 4, %SubStruct { i16 1, i16 2 }, ptr null, i8 3, i32 156 }, align 8
+@foo.foo.10 = internal unnamed_addr global i32 0, align 4
+@.str = private unnamed_addr constant [7 x i8] c"<none>\00", align 1
+@.str.11 = private unnamed_addr constant [14 x i8] c"Hello world!\0A\00", align 1
+
+; Function Attrs:
+declare ptr @malloc(i32) #0
+
+; Function Attrs:
+define ptr @foo.passThroughList(ptr %0) #0 {
+entry:
+  ret ptr %0
+}
+
+; Function Attrs:
+define void @foo.foo() #0 {
+entry:
+  %0 = load i32, ptr @foo.foo.10, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr @foo.foo.10, align 4
+  %1 = call ptr @malloc(i32 12)
+  store ptr %1, ptr @foo.data, align 8
+  ret void
+}
+
+; Function Attrs:
+define void @foo.insertIntoListTail(ptr %0, i32 %1) #0 {
+entry:
+  %l = alloca ptr, align 8
+  store ptr %0, ptr %l, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %2 = load ptr, ptr %l, align 8
+  %3 = load ptr, ptr %2, align 8
+  %i2b = icmp ne ptr %3, null
+  br i1 %i2b, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %4 = load ptr, ptr %l, align 8
+  %5 = load ptr, ptr %4, align 8
+  %ptradd = getelementptr inbounds i8, ptr %5, i64 8
+  store ptr %ptradd, ptr %l, align 8
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  %6 = load ptr, ptr %l, align 8
+  %7 = call ptr @malloc(i32 16)
+  store ptr %7, ptr %6, align 8
+  %8 = load ptr, ptr %l, align 8
+  %9 = load ptr, ptr %8, align 8
+  store i32 %1, ptr %9, align 8
+  %10 = load ptr, ptr %l, align 8
+  %11 = load ptr, ptr %10, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %11, i64 8
+  store ptr null, ptr %ptradd1, align 8
+  ret void
+}
+
+; Function Attrs:
+define ptr @foo.findData(ptr %0, i32 %1) #0 {
+entry:
+  %i2nb = icmp eq ptr %0, null
+  br i1 %i2nb, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  ret ptr null
+if.exit:                                          ; preds = %entry
+  %2 = load i32, ptr %0, align 8
+  %eq = icmp eq i32 %2, %1
+  br i1 %eq, label %if.then1, label %if.exit2
+if.then1:                                         ; preds = %if.exit
+  ret ptr %0
+if.exit2:                                         ; preds = %if.exit
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 8
+  %3 = load ptr, ptr %ptradd, align 8
+  %4 = call ptr @foo.findData(ptr %3, i32 %1)
+  ret ptr %4
+}
+
+; Function Attrs:
+declare void @foundIt() #0
+
+; Function Attrs:
+define void @foo.doListStuff() #0 {
+entry:
+  %myList = alloca ptr, align 8
+  store ptr null, ptr %myList, align 8
+  call void @foo.insertIntoListTail(ptr %myList, i32 100)
+  call void @foo.insertIntoListTail(ptr %myList, i32 12)
+  call void @foo.insertIntoListTail(ptr %myList, i32 42)
+  call void @foo.insertIntoListTail(ptr %myList, i32 1123)
+  call void @foo.insertIntoListTail(ptr %myList, i32 1213)
+  %0 = load ptr, ptr %myList, align 8
+  %1 = call ptr @foo.findData(ptr %0, i32 75)
+  %i2b = icmp ne ptr %1, null
+  br i1 %i2b, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  call void @foundIt()
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %entry
+  %2 = load ptr, ptr %myList, align 8
+  %3 = call ptr @foo.findData(ptr %2, i32 42)
+  %i2b1 = icmp ne ptr %3, null
+  br i1 %i2b1, label %if.then2, label %if.exit3
+if.then2:                                         ; preds = %if.exit
+  call void @foundIt()
+  br label %if.exit3
+if.exit3:                                         ; preds = %if.then2, %if.exit
+  %4 = load ptr, ptr %myList, align 8
+  %5 = call ptr @foo.findData(ptr %4, i32 700)
+  %i2b4 = icmp ne ptr %5, null
+  br i1 %i2b4, label %if.then5, label %if.exit6
+if.then5:                                         ; preds = %if.exit3
+  call void @foundIt()
+  br label %if.exit6
+if.exit6:                                         ; preds = %if.then5, %if.exit3
+  ret void
+}
+
+; Function Attrs:
+define i32 @foo.floatcomptest(ptr %0, ptr %1, ptr %2, ptr %3) #0 {
+entry:
+  %4 = load double, ptr %0, align 8
+  %5 = load double, ptr %1, align 8
+  %lt = fcmp olt double %4, %5
+  br i1 %lt, label %or.phi, label %or.rhs
+or.rhs:                                           ; preds = %entry
+  %6 = load float, ptr %2, align 4
+  %7 = load float, ptr %3, align 4
+  %lt1 = fcmp olt float %6, %7
+  br label %or.phi
+or.phi:                                           ; preds = %or.rhs, %entry
+  %val = phi i1 [ true, %entry ], [ %lt1, %or.rhs ]
+  %zext = zext i1 %val to i32
+  ret i32 %zext
+}
+
+; Function Attrs:
+define ptr @foo.memset_impl(ptr %0, i32 %1, i32 %2) #0 {
+entry:
+  %len = alloca i32, align 4
+  %dstp = alloca i64, align 8
+  store i32 %2, ptr %len, align 4
+  %ptrxi = ptrtoint ptr %0 to i64
+  store i64 %ptrxi, ptr %dstp, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %3 = load i64, ptr %dstp, align 8
+  %smod = srem i64 %3, 4
+  %neq = icmp ne i64 %smod, 0
+  br i1 %neq, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %4 = load i64, ptr %dstp, align 8
+  %intptr = inttoptr i64 %4 to ptr
+  %trunc = trunc i32 %1 to i8
+  store i8 %trunc, ptr %intptr, align 1
+  %5 = load i64, ptr %dstp, align 8
+  %add = add i64 %5, 1
+  store i64 %add, ptr %dstp, align 8
+  %6 = load i32, ptr %len, align 4
+  %sub = sub i32 %6, 1
+  store i32 %sub, ptr %len, align 4
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  ret ptr %0
+}
+
+; Function Attrs:
+define internal ptr @foo.localmalloc(i32 %0) #0 {
+entry:
+  %blah = alloca ptr, align 8
+  store ptr null, ptr %blah, align 8
+  %1 = load i32, ptr @foo.remaining, align 4
+  %gt = icmp sgt i32 %0, %1
+  br i1 %gt, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  %2 = call ptr @malloc(i32 32768)
+  store ptr %2, ptr @foo.temp, align 8
+  store i32 32768, ptr @foo.remaining, align 4
+  %3 = load ptr, ptr @foo.temp, align 8
+  ret ptr %3
+if.exit:                                          ; preds = %entry
+  ret ptr null
+}
+
+; Function Attrs:
+define void @foo.testRetStruct(ptr noalias sret(%PBVTest) align 8 %0, float %1, double %2, i32 %3) #0 {
+entry:
+  %t = alloca %PBVTest, align 8
+  %fpfpext = fpext float %1 to double
+  store double %fpfpext, ptr %t, align 8
+  %ptradd = getelementptr inbounds i8, ptr %t, i64 8
+  store double %2, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %t, i64 16
+  store i32 %3, ptr %ptradd1, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %t, i32 24, i1 false)
+  ret void
+}
+
+; Function Attrs:
+declare void @testRetStruct2(ptr noalias sret(%PBVTest) align 8) #0
+
+; Function Attrs:
+define double @foo.callRetStruct(float %0, double %1, i32 %2) #0 {
+entry:
+  %t = alloca %PBVTest, align 8
+  call void @testRetStruct2(ptr sret(%PBVTest) align 8 %t)
+  %3 = load double, ptr %t, align 8
+  %fpfpext = fpext float %0 to double
+  %fadd = fadd double %3, %fpfpext
+  %fadd1 = fadd double %fadd, %1
+  %sifp = sitofp i32 %2 to double
+  %fadd2 = fadd double %fadd1, %sifp
+  ret double %fadd2
+}
+
+; Function Attrs:
+declare i32 @fp(i32, ptr) #0
+
+; Function Attrs:
+define void @foo.__bb_exit_func() #0 {
+entry:
+  %0 = load ptr, ptr @foo.ext, align 8
+  %i2b = icmp ne ptr %0, null
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+cond.lhs:                                         ; preds = %entry
+  %1 = load ptr, ptr @foo.ext, align 8
+  br label %cond.phi
+cond.rhs:                                         ; preds = %entry
+  br label %cond.phi
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi ptr [ %1, %cond.lhs ], [ @.str, %cond.rhs ]
+  %2 = call i32 @fp(i32 12, ptr %val)
+  ret void
+}
+
+; Function Attrs:
+declare i32 @puts(ptr) #0
+
+; Function Attrs:
+define i32 @foo.ptrFunc(ptr %0, i32 %1) #0 {
+entry:
+  %2 = call i32 %0(i32 %1)
+  ret i32 %2
+}
+
+; Function Attrs:
+define zeroext i8 @foo.ptrFunc2(ptr byval([30 x ptr]) align 8 %0, i32 %1) #0 {
+entry:
+  %sext = sext i32 %1 to i64
+  %ptroffset = getelementptr inbounds [8 x i8], ptr %0, i64 %sext
+  %2 = load ptr, ptr %ptroffset, align 8
+  %3 = call i32 %2(i32 98)
+  %trunc = trunc i32 %3 to i8
+  ret i8 %trunc
+}
+
+; Function Attrs:
+declare zeroext i8 @smallArgs2(i8 zeroext, i8 zeroext, i64, i8 zeroext, i8 zeroext) #0
+
+; Function Attrs:
+declare i32 @someFuncA() #0
+
+; Function Attrs:
+define zeroext i8 @foo.smallArgs(i8 zeroext %0, i8 zeroext %1, i8 zeroext %2, i8 zeroext %3) #0 {
+entry:
+  %4 = call i32 @someFuncA()
+  %zext = zext i8 %0 to i32
+  %sub = sub i32 %zext, 1
+  %trunc = trunc i32 %sub to i8
+  %zext1 = zext i8 %1 to i32
+  %add = add i32 %zext1, 1
+  %trunc2 = trunc i32 %add to i8
+  %zext3 = zext i8 %2 to i64
+  %5 = call i8 @smallArgs2(i8 zeroext %trunc, i8 zeroext %trunc2, i64 %zext3, i8 zeroext %3, i8 zeroext %0)
+  ret i8 %5
+}
+
+; Function Attrs:
+define internal i32 @foo.f0(ptr byval(%Quad) align 8 %0, i32 %1) #0 {
+entry:
+  %r = alloca %Quad, align 8
+  %i2b = icmp ne i32 %1, 0
+  br i1 %i2b, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  %ptradd = getelementptr inbounds i8, ptr %r, i64 4
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %ptradd, ptr align 4 %ptradd1, i32 4, i1 false)
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %entry
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i64 8
+  %ptradd3 = getelementptr inbounds i8, ptr %r, i64 4
+  store ptr %ptradd3, ptr %ptradd2, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %0, i64 20
+  %ptradd5 = getelementptr inbounds i8, ptr %0, i64 16
+  store i8 1, ptr %ptradd5, align 8
+  store i32 1, ptr %ptradd4, align 4
+  store i32 1, ptr %0, align 8
+  %ptradd6 = getelementptr inbounds i8, ptr %0, i64 4
+  %ptradd7 = getelementptr inbounds i8, ptr %ptradd6, i64 2
+  %2 = load i16, ptr %ptradd7, align 2
+  %sext = sext i16 %2 to i32
+  %add = add i32 %sext, %1
+  %ptradd8 = getelementptr inbounds i8, ptr %r, i64 20
+  %3 = load i32, ptr %ptradd8, align 4
+  %add9 = add i32 %add, %3
+  %ptradd10 = getelementptr inbounds i8, ptr %0, i64 16
+  %4 = load i8, ptr %ptradd10, align 8
+  %zext = zext i8 %4 to i32
+  %sub = sub i32 %add9, %zext
+  ret i32 %sub
+}
+
+; Function Attrs:
+define i32 @foo.f1(ptr %0, i32 %1) #0 {
+entry:
+  %r = alloca %Quad, align 8
+  %i2b = icmp ne i32 %1, 0
+  br i1 %i2b, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %r, ptr align 8 %0, i32 24, i1 false)
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %entry
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 20
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 16
+  store i8 1, ptr %ptradd1, align 8
+  store i32 1, ptr %ptradd, align 4
+  store i32 1, ptr %0, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i64 4
+  %ptradd3 = getelementptr inbounds i8, ptr %ptradd2, i64 2
+  %2 = load i16, ptr %ptradd3, align 2
+  %sext = sext i16 %2 to i32
+  %add = add i32 %sext, %1
+  %ptradd4 = getelementptr inbounds i8, ptr %r, i64 20
+  %3 = load i32, ptr %ptradd4, align 4
+  %add5 = add i32 %add, %3
+  %ptradd6 = getelementptr inbounds i8, ptr %0, i64 16
+  %4 = load i8, ptr %ptradd6, align 8
+  %zext = zext i8 %4 to i32
+  %sub = sub i32 %add5, %zext
+  ret i32 %sub
+}
+
+; Function Attrs:
+define i32 @foo.badFunc(float %0) #0 {
+entry:
+  %result = alloca i32, align 4
+  %fpfpext = fpext float %0 to double
+  %gt = fcmp ogt double %fpfpext, 1.234500e+01
+  br i1 %gt, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  store i32 4, ptr %result, align 4
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %entry
+  %1 = load i32, ptr %result, align 4
+  ret i32 %1
+}
+
+; Function Attrs:
+declare i32 @ef1(ptr, ptr, ptr) #0
+
+; Function Attrs:
+define i32 @foo.func(i32 %0, i64 %1) #0 {
+entry:
+  %result = alloca i32, align 4
+  %c = alloca i8, align 1
+  %x = alloca i32, align 4
+  %c1 = alloca i8, align 1
+  %x2 = alloca i32, align 4
+  store i32 %0, ptr %result, align 4
+  %2 = call i32 @ef1(ptr %result, ptr %c, ptr %x)
+  store i8 0, ptr %c1, align 1
+  store i32 0, ptr %x2, align 4
+  %3 = call i32 @ef1(ptr %result, ptr %c1, ptr %x2)
+  %4 = load i32, ptr %result, align 4
+  ret i32 %4
+}
+
+; Function Attrs:
+define signext i16 @foo.funFunc(i64 %0, i8 zeroext %1) #0 {
+entry:
+  %zext = zext i8 %1 to i64
+  %add = add i64 %0, %zext
+  %trunc = trunc i64 %add to i16
+  ret i16 %trunc
+}
+
+; Function Attrs:
+define i32 @foo.castTest(i32 %0) #0 {
+entry:
+  ret i32 %0
+}
+
+; Function Attrs:
+define double @foo.testAdd(double %0, float %1) #0 {
+entry:
+  %fpfpext = fpext float %1 to double
+  %fadd = fadd double %0, %fpfpext
+  %fadd1 = fadd double %fadd, 5.000000e-01
+  ret double %fadd1
+}
+
+; Function Attrs:
+define i32 @foo.funcZ(i32 %0, i32 %1) #0 {
+entry:
+  %i = alloca i32, align 4
+  %j = alloca i32, align 4
+  store i32 %0, ptr %i, align 4
+  store i32 %1, ptr %j, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %2 = load i32, ptr %i, align 4
+  %neq = icmp ne i32 %2, 20
+  br i1 %neq, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %3 = load i32, ptr %i, align 4
+  %add = add i32 %3, 2
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  %4 = load i32, ptr %j, align 4
+  %5 = load i32, ptr %i, align 4
+  %6 = call i32 @foo.funcZ(i32 2, i32 %5)
+  %add1 = add i32 %4, %6
+  store i32 %add1, ptr %j, align 4
+  %7 = load i32, ptr %i, align 4
+  %mul = mul i32 %7, 3
+  %8 = load i32, ptr %j, align 4
+  %mul2 = mul i32 %8, 2
+  %add3 = add i32 %mul, %mul2
+  %9 = load i32, ptr %j, align 4
+  %mul4 = mul i32 %add3, %9
+  ret i32 %mul4
+}
+
+; Function Attrs:
+define i32 @foo.sumArray(ptr %0, i32 %1) #0 {
+entry:
+  %i = alloca i32, align 4
+  %result = alloca i32, align 4
+  store i32 0, ptr %result, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %2 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %2, %1
+  br i1 %lt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %3 = load i32, ptr %result, align 4
+  %4 = load i32, ptr %i, align 4
+  %sext = sext i32 %4 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %0, i64 %sext
+  %5 = load i32, ptr %ptroffset, align 4
+  %add = add i32 %3, %5
+  store i32 %add, ptr %result, align 4
+  %6 = load i32, ptr %i, align 4
+  %add1 = add i32 %6, 1
+  store i32 %add1, ptr %i, align 4
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  %7 = load i32, ptr %result, align 4
+  ret i32 %7
+}
+
+; Function Attrs:
+define i32 @foo.arrayParam(ptr %0) #0 {
+entry:
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 200
+  %1 = load i32, ptr %ptradd, align 4
+  %sext = sext i32 %1 to i64
+  %intptr = inttoptr i64 %sext to ptr
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 200
+  %2 = call i32 @ef1(ptr %intptr, ptr inttoptr (i64 1 to ptr), ptr %ptradd1)
+  ret i32 %2
+}
+
+; Function Attrs:
+define i32 @foo.arrayToSum() #0 {
+entry:
+  %a = alloca [100 x i32], align 16
+  %i = alloca i32, align 4
+  store i32 0, ptr %i, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %0 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %0, 100
+  br i1 %lt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i32, ptr %i, align 4
+  %sext = sext i32 %1 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %a, i64 %sext
+  %2 = load i32, ptr %i, align 4
+  %mul = mul i32 %2, 4
+  store i32 %mul, ptr %ptroffset, align 4
+  %3 = load i32, ptr %i, align 4
+  %add = add i32 %3, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  %4 = load i32, ptr %a, align 4
+  %sext1 = sext i32 %4 to i64
+  %ptroffset2 = getelementptr inbounds [4 x i8], ptr %a, i64 %sext1
+  %5 = load i32, ptr %ptroffset2, align 4
+  ret i32 %5
+}
+
+; Function Attrs:
+declare i32 @externFunc(i64, ptr, i16 signext, i8 zeroext) #0
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  %i = alloca i32, align 4
+  %2 = call i32 @puts(ptr @.str.11)
+  %trunc = trunc i32 %0 to i16
+  %3 = call i32 @externFunc(i64 -1, ptr null, i16 signext %trunc, i8 zeroext 2)
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %4 = load i32, ptr %i, align 4
+  %gt = icmp ugt i32 10, %4
+  br i1 %gt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %ptradd = getelementptr inbounds i8, ptr %1, i64 24
+  %5 = load ptr, ptr %ptradd, align 8
+  %6 = call i32 @puts(ptr %5)
+  %7 = load i32, ptr %i, align 4
+  %add = add i32 %7, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  ret i32 0
+}
+
+; Function Attrs:
+define double @foo.mathFunc(double %0, double %1, double %2, double %3, double %4, double %5, double %6, double %7, double %8, double %9, double %10, double %11, double %12, double %13, double %14, double %15, double %16) #0 {
+entry:
+  %fadd = fadd double %0, %1
+  %fadd1 = fadd double %fadd, %2
+  %fadd2 = fadd double %fadd1, %3
+  %fadd3 = fadd double %fadd2, %4
+  %fadd4 = fadd double %fadd3, %5
+  %fadd5 = fadd double %fadd4, %6
+  %fadd6 = fadd double %fadd5, %7
+  %fadd7 = fadd double %fadd6, %8
+  %fadd8 = fadd double %fadd7, %9
+  %fadd9 = fadd double %fadd8, %10
+  %fadd10 = fadd double %fadd9, %11
+  %fadd11 = fadd double %fadd10, %12
+  %fadd12 = fadd double %fadd11, %13
+  %fadd13 = fadd double %fadd12, %14
+  %fadd14 = fadd double %fadd13, %15
+  %fadd15 = fadd double %fadd14, %16
+  ret double %fadd15
+}
+
+; Function Attrs:
+define void @foo.strcpy(ptr %0, ptr %1) #0 {
+entry:
+  %s1 = alloca ptr, align 8
+  %s2 = alloca ptr, align 8
+  store ptr %0, ptr %s1, align 8
+  store ptr %1, ptr %s2, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %2 = load ptr, ptr %s1, align 8
+  %ptradd_any = getelementptr i8, ptr %2, i8 1
+  store ptr %ptradd_any, ptr %s1, align 8
+  %3 = load ptr, ptr %s2, align 8
+  %ptradd_any1 = getelementptr i8, ptr %3, i8 1
+  store ptr %ptradd_any1, ptr %s2, align 8
+  %4 = load i8, ptr %3, align 1
+  store i8 %4, ptr %2, align 1
+  %i2b = icmp ne i8 %4, 0
+  br i1 %i2b, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
+
+; Function Attrs:
+define void @foo.strcat(ptr %0, ptr %1) #0 {
+entry:
+  %s1 = alloca ptr, align 8
+  %s2 = alloca ptr, align 8
+  store ptr %0, ptr %s1, align 8
+  store ptr %1, ptr %s2, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %2 = load ptr, ptr %s1, align 8
+  %ptradd_any = getelementptr i8, ptr %2, i8 1
+  store ptr %ptradd_any, ptr %s1, align 8
+  %3 = load i8, ptr %2, align 1
+  %i2b = icmp ne i8 %3, 0
+  br i1 %i2b, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  %4 = load ptr, ptr %s1, align 8
+  %ptradd_any1 = getelementptr i8, ptr %4, i8 -1
+  store ptr %ptradd_any1, ptr %s1, align 8
+  br label %loop.cond2
+loop.cond2:                                       ; preds = %loop.body6, %loop.exit
+  %5 = load ptr, ptr %s1, align 8
+  %ptradd_any3 = getelementptr i8, ptr %5, i8 1
+  store ptr %ptradd_any3, ptr %s1, align 8
+  %6 = load ptr, ptr %s2, align 8
+  %ptradd_any4 = getelementptr i8, ptr %6, i8 1
+  store ptr %ptradd_any4, ptr %s2, align 8
+  %7 = load i8, ptr %6, align 1
+  store i8 %7, ptr %5, align 1
+  %i2b5 = icmp ne i8 %7, 0
+  br i1 %i2b5, label %loop.body6, label %loop.exit7
+loop.body6:                                       ; preds = %loop.cond2
+  br label %loop.cond2
+loop.exit7:                                       ; preds = %loop.cond2
+  ret void
+}
+
+; Function Attrs:
+define i32 @foo.strcmp(ptr %0, ptr %1) #0 {
+entry:
+  %s1 = alloca ptr, align 8
+  %s2 = alloca ptr, align 8
+  store ptr %0, ptr %s1, align 8
+  store ptr %1, ptr %s2, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %2 = load ptr, ptr %s1, align 8
+  %ptradd_any = getelementptr i8, ptr %2, i8 1
+  store ptr %ptradd_any, ptr %s1, align 8
+  %3 = load i8, ptr %2, align 1
+  %4 = load ptr, ptr %s2, align 8
+  %ptradd_any1 = getelementptr i8, ptr %4, i8 1
+  store ptr %ptradd_any1, ptr %s2, align 8
+  %5 = load i8, ptr %4, align 1
+  %eq = icmp eq i8 %3, %5
+  br i1 %eq, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  %6 = load ptr, ptr %s1, align 8
+  %7 = load i8, ptr %6, align 1
+  %zext = zext i8 %7 to i32
+  %eq2 = icmp eq i32 0, %zext
+  br i1 %eq2, label %if.then, label %if.else6
+if.then:                                          ; preds = %loop.exit
+  %8 = load ptr, ptr %s2, align 8
+  %9 = load i8, ptr %8, align 1
+  %zext3 = zext i8 %9 to i32
+  %eq4 = icmp eq i32 0, %zext3
+  br i1 %eq4, label %if.then5, label %if.else
+if.then5:                                         ; preds = %if.then
+  ret i32 0
+if.else:                                          ; preds = %if.then
+  ret i32 -1
+if.else6:                                         ; preds = %loop.exit
+  %10 = load ptr, ptr %s2, align 8
+  %11 = load i8, ptr %10, align 1
+  %zext7 = zext i8 %11 to i32
+  %eq8 = icmp eq i32 0, %zext7
+  br i1 %eq8, label %if.then9, label %if.else10
+if.then9:                                         ; preds = %if.else6
+  ret i32 1
+if.else10:                                        ; preds = %if.else6
+  %12 = load ptr, ptr %s1, align 8
+  %ptradd_any11 = getelementptr i8, ptr %12, i8 -1
+  store ptr %ptradd_any11, ptr %s1, align 8
+  %13 = load i8, ptr %ptradd_any11, align 1
+  %zext12 = zext i8 %13 to i32
+  %14 = load ptr, ptr %s2, align 8
+  %ptradd_any13 = getelementptr i8, ptr %14, i8 -1
+  store ptr %ptradd_any13, ptr %s2, align 8
+  %15 = load i8, ptr %ptradd_any13, align 1
+  %zext14 = zext i8 %15 to i32
+  %sub = sub i32 %zext12, %zext14
+  ret i32 %sub
+}
diff --git a/test/test_suite7/comments/simple_comments.c3 b/test/test_suite7/comments/simple_comments.c3
new file mode 100644
index 000000000..ded9afc18
--- /dev/null
+++ b/test/test_suite7/comments/simple_comments.c3
@@ -0,0 +1,15 @@
+module comments;
+/* Span *//* style */
+
+/* Nested /* Errors // Inside */ */
+// Single line
+/*
+ Multiline span style
+ */
+
+fn void test()
+{
+   return;
+}
+
+/* /* nested /* comments! */ !! */ goes here */
diff --git a/test/test_suite7/compile_time/add_to_ct_undefined.c3 b/test/test_suite7/compile_time/add_to_ct_undefined.c3
new file mode 100644
index 000000000..e9fd8f5cc
--- /dev/null
+++ b/test/test_suite7/compile_time/add_to_ct_undefined.c3
@@ -0,0 +1,6 @@
+fn int main()
+{
+	var $a;
+	$a += 1; // #error: not yet initialized
+	return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/compile_time_access_subscript.c3t b/test/test_suite7/compile_time/compile_time_access_subscript.c3t
new file mode 100644
index 000000000..f797b254e
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_access_subscript.c3t
@@ -0,0 +1,92 @@
+// #target: macos-x64
+module test;
+import std::io;
+struct Abc
+{
+	float m00, m01, m10, m11;
+}
+
+Abc a = flip((Abc) { 1, 2, 3, 4 });
+
+macro flip($init)
+{
+	return (Abc) { $init.m01, $init.m10, $init.m11, $init.m00 };
+}
+
+macro check_type($Type)
+{
+	var $b = ($Type[4][4]) {};
+	$Type z = $b[2][2];
+	return z;
+}
+
+enum Blurb { FOO }
+
+distinct Bdd = Abc;
+fn void main()
+{
+	var $i = (int[4]) { 1, 2, 3, 4 };
+	var $b = (Abc[2]) { (Abc) {}, (Abc) { 11, 22, 33, 44 }};
+	var $c = (any[4]) {};
+	check_type(int);
+	check_type(Abc);
+	check_type(anyfault);
+	check_type(Blurb);
+	check_type(int*);
+	check_type(bool);
+	check_type(typeid);
+	check_type(int[<3>]);
+	check_type(Bdd);
+	check_type(int[2]);
+	check_type(int[]);
+	io::printfn("%d", $b[0].m11);
+}
+
+/* #expect: test.ll
+
+  %z = alloca i32, align 4
+  %z1 = alloca %Abc, align 4
+  %z4 = alloca i64, align 8
+  %z5 = alloca i32, align 4
+  %z6 = alloca ptr, align 8
+  %z7 = alloca i8, align 1
+  %z8 = alloca i64, align 8
+  %z9 = alloca <3 x i32>, align 16
+  %z10 = alloca %Abc, align 4
+  %z14 = alloca [2 x i32], align 4
+  %z16 = alloca %"int[]", align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca float, align 4
+  %retparam = alloca i64, align 8
+  store i32 0, ptr %z, align 4
+  store float 0.000000e+00, ptr %z1, align 4
+  %ptradd = getelementptr inbounds i8, ptr %z1, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %z1, i64 8
+  store float 0.000000e+00, ptr %ptradd2, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %z1, i64 12
+  store float 0.000000e+00, ptr %ptradd3, align 4
+  store i64 0, ptr %z4, align 8
+  store i32 0, ptr %z5, align 4
+  store ptr null, ptr %z6, align 8
+  store i8 0, ptr %z7, align 1
+  store i64 0, ptr %z8, align 8
+  store <3 x i32> zeroinitializer, ptr %z9, align 16
+  store float 0.000000e+00, ptr %z10, align 4
+  %ptradd11 = getelementptr inbounds i8, ptr %z10, i64 4
+  store float 0.000000e+00, ptr %ptradd11, align 4
+  %ptradd12 = getelementptr inbounds i8, ptr %z10, i64 8
+  store float 0.000000e+00, ptr %ptradd12, align 4
+  %ptradd13 = getelementptr inbounds i8, ptr %z10, i64 12
+  store float 0.000000e+00, ptr %ptradd13, align 4
+  store i32 0, ptr %z14, align 4
+  %ptradd15 = getelementptr inbounds i8, ptr %z14, i64 4
+  store i32 0, ptr %ptradd15, align 4
+  store %"int[]" zeroinitializer, ptr %z16, align 8
+  store float 0.000000e+00, ptr %taddr, align 4
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.float" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  ret void
+}
diff --git a/test/test_suite7/compile_time/compile_time_array.c3t b/test/test_suite7/compile_time/compile_time_array.c3t
new file mode 100644
index 000000000..621e3f50e
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_array.c3t
@@ -0,0 +1,28 @@
+// #target: macos-x64
+module test;
+
+fn void test()
+{
+	var $foo = { 1, "a" };
+    var $bar = $foo[0];
+    var $i = 1;
+    var $baz = $foo[$i];
+    int x = $bar;
+    char[] z = $baz;
+}
+
+/* #expect: test.ll
+
+%"char[]" = type { ptr, i64 }
+
+@.str = private unnamed_addr constant [2 x i8] c"a\00", align 1
+
+
+define void @test.test() #0 {
+entry:
+  %x = alloca i32, align 4
+  %z = alloca %"char[]", align 8
+  store i32 1, ptr %x, align 4
+  store %"char[]" { ptr @.str, i64 1 }, ptr %z, align 8
+  ret void
+}
diff --git a/test/test_suite7/compile_time/compile_time_array_bug.c3t b/test/test_suite7/compile_time/compile_time_array_bug.c3t
new file mode 100644
index 000000000..c27082d04
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_array_bug.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module test;
+enum TokenType: char (char token) {
+  ERROR = 0,
+  INCP = '>',
+  DECP = '>',
+  LOOPS = '[',
+}
+
+macro populate_token_table() {
+  TokenType[256] $tmp = {};
+
+  $foreach ($tokenType: TokenType.values)
+    $tmp[$tokenType.token] = $tokenType;
+  $endforeach
+
+  return $tmp;
+}
+
+const TokenType[256] TOKEN_TABLE = populate_token_table();
+
+/* #expect: test.ll
+
+@test.TOKEN_TABLE = local_unnamed_addr constant { i8, [61 x i8], i8, [28 x i8], i8, [164 x i8] } { i8 0, [61 x i8] zeroinitializer, i8 2, [28 x i8] zeroinitializer, i8 3, [164 x i8] zeroinitializer }, align 16
diff --git a/test/test_suite7/compile_time/compile_time_array_ref.c3t b/test/test_suite7/compile_time/compile_time_array_ref.c3t
new file mode 100644
index 000000000..69638b35e
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_array_ref.c3t
@@ -0,0 +1,18 @@
+// #target: macos-x64
+module foo;
+
+char[8192] stack;
+char* x = &stack[0] + 1000;
+
+fn void test()
+{
+    static char[2] y;
+    static char* z = &y[1];
+}
+
+/* #expect: foo.ll
+
+@foo.stack = local_unnamed_addr global [8192 x i8] zeroinitializer, align 16
+@foo.x = local_unnamed_addr global ptr getelementptr (i8, ptr @foo.stack, i64 1000), align 8
+@test.y = internal unnamed_addr global [2 x i8] zeroinitializer, align 1
+@test.z = internal unnamed_addr global ptr getelementptr inbounds (i8, ptr @test.y, i64 1), align 8
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/compile_time_bitops.c3t b/test/test_suite7/compile_time/compile_time_bitops.c3t
new file mode 100644
index 000000000..573a5aac9
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_bitops.c3t
@@ -0,0 +1,18 @@
+// #target: macos-x64
+module foo;
+
+int x1 = 2 ^ 4;
+int x2 = 2 | 4;
+int x3 = 2 & 4;
+int y1 = 4 << 2;
+int y2 = 4 >> 2;
+int y3 = ~4;
+
+/* #expect: foo.ll
+
+@foo.x1 = local_unnamed_addr global i32 6, align 4
+@foo.x2 = local_unnamed_addr global i32 6, align 4
+@foo.x3 = local_unnamed_addr global i32 0, align 4
+@foo.y1 = local_unnamed_addr global i32 16, align 4
+@foo.y2 = local_unnamed_addr global i32 1, align 4
+@foo.y3 = local_unnamed_addr global i32 -5, align 4
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/compile_time_pointers.c3t b/test/test_suite7/compile_time/compile_time_pointers.c3t
new file mode 100644
index 000000000..fa552fcbc
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_pointers.c3t
@@ -0,0 +1,33 @@
+// #target: macos-x64
+module test;
+
+const uptr ABC = 0x213;
+const void* BAC = (void*)144 - 1;
+const void* EXX = (void*)155;
+const isz KEX = BAC - EXX;
+const void* CAB = BAC;
+const uptr ZAB = (uptr)CAB;
+const int* BOB = (int*)16 - 1;
+const int* BAB = (int*)16 + 1;
+const isz AO = BAB - BOB;
+
+int abc @if(ZAB > 100) = 123;
+
+fn void test()
+{
+	abc++;
+	uptr foo = (uptr)BAC;
+}
+
+/* #expect: test.ll
+
+@test.ABC = local_unnamed_addr constant i64 531, align 8
+@test.BAC = local_unnamed_addr constant ptr inttoptr (i64 143 to ptr), align 8
+@test.EXX = local_unnamed_addr constant ptr inttoptr (i64 155 to ptr), align 8
+@test.KEX = local_unnamed_addr constant i64 -12, align 8
+@test.CAB = local_unnamed_addr constant ptr inttoptr (i64 143 to ptr), align 8
+@test.ZAB = local_unnamed_addr constant i64 143, align 8
+@test.BOB = local_unnamed_addr constant ptr inttoptr (i64 12 to ptr), align 8
+@test.BAB = local_unnamed_addr constant ptr inttoptr (i64 20 to ptr), align 8
+@test.AO = local_unnamed_addr constant i64 2, align 8
+@test.abc = local_unnamed_addr global i32 123, align 4
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/compile_time_ptr_ref.c3t b/test/test_suite7/compile_time/compile_time_ptr_ref.c3t
new file mode 100644
index 000000000..32449c8c1
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_ptr_ref.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+module test;
+
+
+int*[] blurp = { &ptr, &ptr, (&ptr + 1), &ptr - 1, (int*)((iptr)(&ptr) - 4) };
+int* c = (int*)((iptr)(&ptr) - 4);
+int* c2 = (int*)((iptr)(&ptr) + 4);
+int* c3 = (int*)(4 + (iptr)(&ptr));
+iptr ff = (iptr)(&ptr);
+int ptr = 0;
+
+/* #expect: test.ll
+
+%"int*[]" = type { ptr, i64 }
+
+@.__const_slice = private unnamed_addr global [5 x ptr] [ptr @test.ptr, ptr @test.ptr, ptr getelementptr (i8, ptr @test.ptr, i64 4), ptr getelementptr (i8, ptr @test.ptr, i64 -4), ptr getelementptr (i8, ptr @test.ptr, i64 -4)], align 16
+@test.blurp = local_unnamed_addr global %"int*[]" { ptr @.__const_slice, i64 5 }, align 8
+@test.c = local_unnamed_addr global ptr getelementptr (i8, ptr @test.ptr, i64 -4), align 8
+@test.c2 = local_unnamed_addr global ptr getelementptr (i8, ptr @test.ptr, i64 4), align 8
+@test.c3 = local_unnamed_addr global ptr getelementptr (i8, ptr @test.ptr, i64 4), align 8
+@test.ff = local_unnamed_addr global i64 ptrtoint (ptr @test.ptr to i64), align 8
+@test.ptr = global i32 0, align 4
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/compile_time_utf32.c3 b/test/test_suite7/compile_time/compile_time_utf32.c3
new file mode 100644
index 000000000..0d5ea9501
--- /dev/null
+++ b/test/test_suite7/compile_time/compile_time_utf32.c3
@@ -0,0 +1,74 @@
+macro int get_utf32_codepoint_length(char $c) @const
+{
+    int $len;
+    $switch
+        $case !($c & 0x80):           $len = 1;
+        $case ($c & 0xE0) == 0xC0:    $len = 2;
+        $case ($c & 0xF0) == 0xE0:    $len = 3;
+        $case ($c & 0xF8) == 0xF0:    $len = 4;
+        $default:                     $len = -1;
+    $endswitch
+    return $len;
+}
+
+macro usz get_utf32_len_from_utf8(String $source) @const
+{
+    usz $len = 0;
+    $for (var $i=0; $i < $source.len;)
+        var $curlen = get_utf32_codepoint_length ($source[$i]);
+        $i += $curlen;
+        $len++;
+    $endfor
+    return $len;
+}
+
+macro Char32[] conv_utf8_to_char32($source) @const
+{
+    Char32 $codepoint;
+    var $max = $source.len;
+
+    var $char32len = get_utf32_len_from_utf8 ($source);
+    Char32[] $chars = {};
+    var $char_index = 0;
+
+    $for (var $inx = 0; $inx < $max; )
+        var $c = $source[$inx];
+        var $len = get_utf32_codepoint_length($c);
+        $switch ($len)
+            $case 1: $codepoint = $c;
+            $case 2: $codepoint = $c & 0x1F;
+            $case 3: $codepoint = $c & 0x0F;
+            $case 4: $codepoint = $c & 0x07;
+            $default:
+                $error("Error, invalid utf8 character in string");
+                return;
+        $endswitch
+
+        $for (var $x = 1; $x < $len; ++$x)
+            $c = $source[$inx + $x];
+            $if ( ($c & 0xC0) != 0x80):
+                $error("Error, invalid utf8 character in string");
+                return;
+            $endif
+            $codepoint = ($codepoint << 6) | ($c & 0x3F);
+        $endfor
+
+        $chars = $chars +++ $codepoint;
+        $inx += $len;
+    $endfor
+    return $chars;
+}
+import std;
+fn void main(String[] args)
+{
+	Char32[] $chars = conv_utf8_to_char32("🐉 eats 🌎");
+	$foreach($v : $chars)
+		io::printn($v);
+	$endforeach
+    Char32[] chars = conv_utf8_to_char32 ("🐉 eats 🌎");
+    io::printn(chars);
+    foreach (c : chars)
+    {
+        io::printfn ("char32 :%x", c );
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/comptime_array_folding.c3t b/test/test_suite7/compile_time/comptime_array_folding.c3t
new file mode 100644
index 000000000..1a7198140
--- /dev/null
+++ b/test/test_suite7/compile_time/comptime_array_folding.c3t
@@ -0,0 +1,68 @@
+// #target: macos-x64
+module test;
+import std;
+
+def @TaggedAttr(value) = {
+    @tag("foo", (ValueHere[?]){ value })
+};
+
+const FOO_STR = "foo";
+
+union TestUnion
+{
+	int a;
+}
+struct ValueHere
+{
+    int value;
+    String thing;
+}
+
+const ValueHere VALUE_STRUCT = { 32, "lol" };
+
+struct ThisOtherStruct @TaggedAttr(VALUE_STRUCT)
+{
+    int something;
+}
+
+enum Example : int (String str) @TaggedAttr(VALUE_STRUCT)
+{
+   FOO = FOO_STR,
+}
+
+const int[2][1] BAR = { { 1, 2} };
+const int[2] BAZ = BAR[0];
+const int BAZ2 = BAZ[1];
+const TestUnion[1] ABC = { { .a = 112 } };
+const TestUnion BCD = ABC[0];
+
+macro int get_tag_value($Type)
+{
+    $if $Type.has_tagof("foo"):
+        return $Type.tagof("foo")[0].value;
+    $else
+    return -1;
+    $endif
+}
+
+const MY_VALUE_1 = get_tag_value(Example);
+const MY_VALUE_2 = get_tag_value(ThisOtherStruct);
+
+fn void main()
+{
+	io::printn(MY_VALUE_2);
+	io::printn(BAZ);
+}
+
+/* #expect: test.ll
+
+@.enum.FOO = internal constant [4 x i8] c"FOO\00", align 1
+@test.FOO_STR = local_unnamed_addr constant %"char[]" { ptr @.str.9, i64 3 }, align 8
+@test.VALUE_STRUCT = local_unnamed_addr constant %ValueHere { i32 32, %"char[]" { ptr @.str.10, i64 3 } }, align 8
+@test.BAR = local_unnamed_addr constant [1 x [2 x i32]] [[2 x i32] [i32 1, i32 2]], align 4
+@test.BAZ = local_unnamed_addr constant [2 x i32] [i32 1, i32 2], align 4
+@test.BAZ2 = local_unnamed_addr constant i32 2, align 4
+@test.ABC = local_unnamed_addr constant [1 x %TestUnion] [%TestUnion { i32 112 }], align 4
+@test.BCD = local_unnamed_addr constant %TestUnion { i32 112 }, align 4
+@test.MY_VALUE_1 = local_unnamed_addr constant i32 32, align 4
+@test.MY_VALUE_2 = local_unnamed_addr constant i32 32, align 4
diff --git a/test/test_suite7/compile_time/concat_append.c3t b/test/test_suite7/compile_time/concat_append.c3t
new file mode 100644
index 000000000..2b2b92d3f
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_append.c3t
@@ -0,0 +1,61 @@
+// #target: macos-x64
+module test;
+macro foo()
+{
+	var c = "hello" +++ " world";
+	String[?] a = (String[1]) { "hello" } +++ (String[1]) { " world" };
+	int[2] $a = { 1, 2 };
+	$a = $a +++ 100;
+	int z = $typeof($a).len;
+	var b = $a;
+	var d = (int[]){} +++ 1 +++ 2 +++ 3;
+	var e = (String[1]) { "hello... " } +++ " there!";
+	var f = "" +++ "";
+	var g = "bye";
+	var h = $$str_hash("helloworld");
+}
+fn int main()
+{
+	foo();
+	return 0;
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [12 x i8] c"hello world\00", align 1
+@.str.1 = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@.str.2 = private unnamed_addr constant [7 x i8] c" world\00", align 1
+@.__const = private unnamed_addr constant [2 x %"char[]"] [%"char[]" { ptr @.str.1, i64 5 }, %"char[]" { ptr @.str.2, i64 6 }], align 16
+@.__const.3 = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 100], align 4
+@.__const.4 = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@.str.5 = private unnamed_addr constant [10 x i8] c"hello... \00", align 1
+@.str.6 = private unnamed_addr constant [8 x i8] c" there!\00", align 1
+@.__const.7 = private unnamed_addr constant [2 x %"char[]"] [%"char[]" { ptr @.str.5, i64 9 }, %"char[]" { ptr @.str.6, i64 7 }], align 16
+@.str.8 = private unnamed_addr constant [4 x i8] c"bye\00", align 1
+
+define i32 @main() #0 {
+entry:
+  %c = alloca %"char[]", align 8
+  %a = alloca [2 x %"char[]"], align 16
+  %z = alloca i32, align 4
+  %b = alloca [3 x i32], align 4
+  %d = alloca %"int[]", align 8
+  %literal = alloca [3 x i32], align 4
+  %e = alloca [2 x %"char[]"], align 16
+  %f = alloca %"char[]", align 8
+  %g = alloca %"char[]", align 8
+  %h = alloca i32, align 4
+  store %"char[]" { ptr @.str, i64 11 }, ptr %c, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %a, ptr align 16 @.__const, i32 32, i1 false)
+  store i32 3, ptr %z, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %b, ptr align 4 @.__const.3, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.4, i32 12, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %1, ptr %d, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %e, ptr align 16 @.__const.7, i32 32, i1 false)
+  store %"char[]" zeroinitializer, ptr %f, align 8
+  store %"char[]" { ptr @.str.8, i64 3 }, ptr %g, align 8
+  store i32 1000299617, ptr %h, align 4
+  ret i32 0
+}
diff --git a/test/test_suite7/compile_time/concat_append_extended_and_edit.c3t b/test/test_suite7/compile_time/concat_append_extended_and_edit.c3t
new file mode 100644
index 000000000..c2ded4d53
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_append_extended_and_edit.c3t
@@ -0,0 +1,2215 @@
+// #target: macos-x64
+module test;
+import std;
+
+struct Abc (Printable)
+{
+	int a;
+}
+fn usz! Abc.to_format(&self, Formatter* f) @dynamic => f.printf("{%s}", self.a);
+
+fn void main2()
+{
+	char[3] $y = "abc";
+	$y[2] = '8';
+	io::printn((String)$y[..]);
+	$y[1] = 'E';
+	io::printn((String)$y[..]);
+	var $x = {5, 5};
+	var $z = $x[0] = 1000;
+	$x = $x +++ 333;
+	io::printn((int[3])$x);
+	$x[1] = 4;
+	io::printn((int[3])$x);
+	io::printn($z);
+	int[5] $w = { };
+	$w[3] = 100;
+	io::printn($w);
+}
+
+fn int main()
+{
+    int[3] $x = { };
+    int[5] $y = { };
+    io::printn($x +++ $y);
+    int[2] $z = { 1, 2 };
+    io::printn($x +++ $z);
+	int[5] $w = { [0] = 99, [3] = 1 };
+	io::printn($w);
+    io::printn($x +++ $w);
+    io::printn($z +++ $x);
+    io::printn($z +++ $z);
+    io::printn($z +++ $w);
+    io::printn($w +++ $x);
+	io::printn($w +++ $z);
+	io::printn($w +++ $w);
+	var $untyped = { 98, 91 };
+	io::printn((int[4])($z +++ $untyped));
+	io::printn((int[4])($untyped +++ $z));
+
+    io::printn((int[5])($x +++ $untyped));
+	io::printn((int[5])($untyped +++ $x));
+
+	io::printn((int[7])($untyped +++ $w));
+	io::printn((int[7])($w +++ $untyped));
+
+	int[3][3] $zz = { [2][1] = 5 };
+	var $untyped2 = { };
+	io::printn((int[3][3])($untyped2 +++ $zz));
+	Abc[3] $zzz = { [1].a = 11 };
+	io::printn((Abc[3])($untyped2 +++ $zzz));
+	var $untyped3 = { "hello", "world" };
+	$untyped3 = $untyped3 +++ $zzz;
+	Abc y = $untyped3[3];
+	io::printn(y);
+    return 0;
+}
+/* #expect: test.ll
+
+define void @test.main2() #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %len14 = alloca i64, align 8
+  %error_var15 = alloca i64, align 8
+  %retparam17 = alloca i64, align 8
+  %error_var23 = alloca i64, align 8
+  %error_var29 = alloca i64, align 8
+  %literal = alloca [3 x i32], align 4
+  %x = alloca [3 x i32], align 4
+  %x37 = alloca [3 x i32], align 4
+  %len38 = alloca i64, align 8
+  %error_var39 = alloca i64, align 8
+  %x40 = alloca [3 x i32], align 4
+  %varargslots = alloca [1 x %any], align 16
+  %retparam42 = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var48 = alloca i64, align 8
+  %error_var54 = alloca i64, align 8
+  %literal62 = alloca [3 x i32], align 4
+  %x63 = alloca [3 x i32], align 4
+  %x64 = alloca [3 x i32], align 4
+  %len65 = alloca i64, align 8
+  %error_var66 = alloca i64, align 8
+  %x67 = alloca [3 x i32], align 4
+  %varargslots69 = alloca [1 x %any], align 16
+  %retparam71 = alloca i64, align 8
+  %taddr72 = alloca %any, align 8
+  %indirectarg76 = alloca %"any[]", align 8
+  %error_var82 = alloca i64, align 8
+  %error_var88 = alloca i64, align 8
+  %len96 = alloca i64, align 8
+  %error_var97 = alloca i64, align 8
+  %varargslots99 = alloca [1 x %any], align 16
+  %taddr100 = alloca i32, align 4
+  %retparam102 = alloca i64, align 8
+  %taddr103 = alloca %any, align 8
+  %indirectarg107 = alloca %"any[]", align 8
+  %error_var113 = alloca i64, align 8
+  %error_var119 = alloca i64, align 8
+  %literal127 = alloca [5 x i32], align 16
+  %x128 = alloca [5 x i32], align 16
+  %x129 = alloca [5 x i32], align 16
+  %len130 = alloca i64, align 8
+  %error_var131 = alloca i64, align 8
+  %x132 = alloca [5 x i32], align 16
+  %varargslots134 = alloca [1 x %any], align 16
+  %retparam136 = alloca i64, align 8
+  %taddr137 = alloca %any, align 8
+  %indirectarg141 = alloca %"any[]", align 8
+  %error_var147 = alloca i64, align 8
+  %error_var153 = alloca i64, align 8
+  %0 = call ptr @std.io.stdout()
+  %1 = call i64 @std.io.File.write(ptr %retparam, ptr %0, ptr @.str, i64 3)
+  %not_err = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %1, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %3 = load i64, ptr %retparam, align 8
+  store i64 %3, ptr %len, align 8
+  %4 = call i64 @std.io.File.write_byte(ptr %0, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %5, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %4, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %6 = call i64 @std.io.File.flush(ptr %0)
+  %not_err9 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %7, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %6, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %8 = load i64, ptr %len, align 8
+  %add = add i64 %8, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  %9 = call ptr @std.io.stdout()
+  %10 = call i64 @std.io.File.write(ptr %retparam17, ptr %9, ptr @.str.1, i64 3)
+  %not_err18 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err18, i1 true)
+  br i1 %11, label %after_check20, label %assign_optional19
+
+assign_optional19:                                ; preds = %voiderr
+  store i64 %10, ptr %error_var15, align 8
+  br label %guard_block21
+
+after_check20:                                    ; preds = %voiderr
+  br label %noerr_block22
+
+guard_block21:                                    ; preds = %assign_optional19
+  br label %voiderr36
+
+noerr_block22:                                    ; preds = %after_check20
+  %12 = load i64, ptr %retparam17, align 8
+  store i64 %12, ptr %len14, align 8
+  %13 = call i64 @std.io.File.write_byte(ptr %9, i8 zeroext 10)
+  %not_err24 = icmp eq i64 %13, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %14, label %after_check26, label %assign_optional25
+
+assign_optional25:                                ; preds = %noerr_block22
+  store i64 %13, ptr %error_var23, align 8
+  br label %guard_block27
+
+after_check26:                                    ; preds = %noerr_block22
+  br label %noerr_block28
+
+guard_block27:                                    ; preds = %assign_optional25
+  br label %voiderr36
+
+noerr_block28:                                    ; preds = %after_check26
+  %15 = call i64 @std.io.File.flush(ptr %9)
+  %not_err30 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err30, i1 true)
+  br i1 %16, label %after_check32, label %assign_optional31
+
+assign_optional31:                                ; preds = %noerr_block28
+  store i64 %15, ptr %error_var29, align 8
+  br label %guard_block33
+
+after_check32:                                    ; preds = %noerr_block28
+  br label %noerr_block34
+
+guard_block33:                                    ; preds = %assign_optional31
+  br label %voiderr36
+
+noerr_block34:                                    ; preds = %after_check32
+  %17 = load i64, ptr %len14, align 8
+  %add35 = add i64 %17, 1
+  br label %voiderr36
+
+voiderr36:                                        ; preds = %noerr_block34, %guard_block33, %guard_block27, %guard_block21
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 %literal, i32 12, i1 false)
+  %18 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x37, ptr align 4 %x, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x40, ptr align 4 %x37, i32 12, i1 false)
+  %19 = insertvalue %any undef, ptr %18, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %21 = insertvalue %any undef, ptr %x40, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.a3$int" to i64), 1
+  store %any %22, ptr %varargslots, align 16
+  %23 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %23, i64 1, 1
+  store %any %20, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %24 = call i64 @std.io.fprintf(ptr %retparam42, i64 %lo, ptr %hi, ptr @.str.2, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err43 = icmp eq i64 %24, 0
+  %25 = call i1 @llvm.expect.i1(i1 %not_err43, i1 true)
+  br i1 %25, label %after_check45, label %assign_optional44
+
+assign_optional44:                                ; preds = %voiderr36
+  store i64 %24, ptr %error_var39, align 8
+  br label %guard_block46
+
+after_check45:                                    ; preds = %voiderr36
+  br label %noerr_block47
+
+guard_block46:                                    ; preds = %assign_optional44
+  br label %voiderr61
+
+noerr_block47:                                    ; preds = %after_check45
+  %26 = load i64, ptr %retparam42, align 8
+  store i64 %26, ptr %len38, align 8
+  %27 = call i64 @std.io.File.write_byte(ptr %18, i8 zeroext 10)
+  %not_err49 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err49, i1 true)
+  br i1 %28, label %after_check51, label %assign_optional50
+
+assign_optional50:                                ; preds = %noerr_block47
+  store i64 %27, ptr %error_var48, align 8
+  br label %guard_block52
+
+after_check51:                                    ; preds = %noerr_block47
+  br label %noerr_block53
+
+guard_block52:                                    ; preds = %assign_optional50
+  br label %voiderr61
+
+noerr_block53:                                    ; preds = %after_check51
+  %29 = call i64 @std.io.File.flush(ptr %18)
+  %not_err55 = icmp eq i64 %29, 0
+  %30 = call i1 @llvm.expect.i1(i1 %not_err55, i1 true)
+  br i1 %30, label %after_check57, label %assign_optional56
+
+assign_optional56:                                ; preds = %noerr_block53
+  store i64 %29, ptr %error_var54, align 8
+  br label %guard_block58
+
+after_check57:                                    ; preds = %noerr_block53
+  br label %noerr_block59
+
+guard_block58:                                    ; preds = %assign_optional56
+  br label %voiderr61
+
+noerr_block59:                                    ; preds = %after_check57
+  %31 = load i64, ptr %len38, align 8
+  %add60 = add i64 %31, 1
+  br label %voiderr61
+
+voiderr61:                                        ; preds = %noerr_block59, %guard_block58, %guard_block52, %guard_block46
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal62, ptr align 4 @.__const.3, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x63, ptr align 4 %literal62, i32 12, i1 false)
+  %32 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x64, ptr align 4 %x63, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x67, ptr align 4 %x64, i32 12, i1 false)
+  %33 = insertvalue %any undef, ptr %32, 0
+  %34 = insertvalue %any %33, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %35 = insertvalue %any undef, ptr %x67, 0
+  %36 = insertvalue %any %35, i64 ptrtoint (ptr @"$ct.a3$int" to i64), 1
+  store %any %36, ptr %varargslots69, align 16
+  %37 = insertvalue %"any[]" undef, ptr %varargslots69, 0
+  %"$$temp70" = insertvalue %"any[]" %37, i64 1, 1
+  store %any %34, ptr %taddr72, align 8
+  %lo73 = load i64, ptr %taddr72, align 8
+  %ptradd74 = getelementptr inbounds i8, ptr %taddr72, i64 8
+  %hi75 = load ptr, ptr %ptradd74, align 8
+  store %"any[]" %"$$temp70", ptr %indirectarg76, align 8
+  %38 = call i64 @std.io.fprintf(ptr %retparam71, i64 %lo73, ptr %hi75, ptr @.str.4, i64 2, ptr byval(%"any[]") align 8 %indirectarg76)
+  %not_err77 = icmp eq i64 %38, 0
+  %39 = call i1 @llvm.expect.i1(i1 %not_err77, i1 true)
+  br i1 %39, label %after_check79, label %assign_optional78
+
+assign_optional78:                                ; preds = %voiderr61
+  store i64 %38, ptr %error_var66, align 8
+  br label %guard_block80
+
+after_check79:                                    ; preds = %voiderr61
+  br label %noerr_block81
+
+guard_block80:                                    ; preds = %assign_optional78
+  br label %voiderr95
+
+noerr_block81:                                    ; preds = %after_check79
+  %40 = load i64, ptr %retparam71, align 8
+  store i64 %40, ptr %len65, align 8
+  %41 = call i64 @std.io.File.write_byte(ptr %32, i8 zeroext 10)
+  %not_err83 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err83, i1 true)
+  br i1 %42, label %after_check85, label %assign_optional84
+
+assign_optional84:                                ; preds = %noerr_block81
+  store i64 %41, ptr %error_var82, align 8
+  br label %guard_block86
+
+after_check85:                                    ; preds = %noerr_block81
+  br label %noerr_block87
+
+guard_block86:                                    ; preds = %assign_optional84
+  br label %voiderr95
+
+noerr_block87:                                    ; preds = %after_check85
+  %43 = call i64 @std.io.File.flush(ptr %32)
+  %not_err89 = icmp eq i64 %43, 0
+  %44 = call i1 @llvm.expect.i1(i1 %not_err89, i1 true)
+  br i1 %44, label %after_check91, label %assign_optional90
+
+assign_optional90:                                ; preds = %noerr_block87
+  store i64 %43, ptr %error_var88, align 8
+  br label %guard_block92
+
+after_check91:                                    ; preds = %noerr_block87
+  br label %noerr_block93
+
+guard_block92:                                    ; preds = %assign_optional90
+  br label %voiderr95
+
+noerr_block93:                                    ; preds = %after_check91
+  %45 = load i64, ptr %len65, align 8
+  %add94 = add i64 %45, 1
+  br label %voiderr95
+
+voiderr95:                                        ; preds = %noerr_block93, %guard_block92, %guard_block86, %guard_block80
+  %46 = call ptr @std.io.stdout()
+  %47 = insertvalue %any undef, ptr %46, 0
+  %48 = insertvalue %any %47, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store i32 1000, ptr %taddr100, align 4
+  %49 = insertvalue %any undef, ptr %taddr100, 0
+  %50 = insertvalue %any %49, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %50, ptr %varargslots99, align 16
+  %51 = insertvalue %"any[]" undef, ptr %varargslots99, 0
+  %"$$temp101" = insertvalue %"any[]" %51, i64 1, 1
+  store %any %48, ptr %taddr103, align 8
+  %lo104 = load i64, ptr %taddr103, align 8
+  %ptradd105 = getelementptr inbounds i8, ptr %taddr103, i64 8
+  %hi106 = load ptr, ptr %ptradd105, align 8
+  store %"any[]" %"$$temp101", ptr %indirectarg107, align 8
+  %52 = call i64 @std.io.fprintf(ptr %retparam102, i64 %lo104, ptr %hi106, ptr @.str.5, i64 2, ptr byval(%"any[]") align 8 %indirectarg107)
+  %not_err108 = icmp eq i64 %52, 0
+  %53 = call i1 @llvm.expect.i1(i1 %not_err108, i1 true)
+  br i1 %53, label %after_check110, label %assign_optional109
+
+assign_optional109:                               ; preds = %voiderr95
+  store i64 %52, ptr %error_var97, align 8
+  br label %guard_block111
+
+after_check110:                                   ; preds = %voiderr95
+  br label %noerr_block112
+
+guard_block111:                                   ; preds = %assign_optional109
+  br label %voiderr126
+
+noerr_block112:                                   ; preds = %after_check110
+  %54 = load i64, ptr %retparam102, align 8
+  store i64 %54, ptr %len96, align 8
+  %55 = call i64 @std.io.File.write_byte(ptr %46, i8 zeroext 10)
+  %not_err114 = icmp eq i64 %55, 0
+  %56 = call i1 @llvm.expect.i1(i1 %not_err114, i1 true)
+  br i1 %56, label %after_check116, label %assign_optional115
+
+assign_optional115:                               ; preds = %noerr_block112
+  store i64 %55, ptr %error_var113, align 8
+  br label %guard_block117
+
+after_check116:                                   ; preds = %noerr_block112
+  br label %noerr_block118
+
+guard_block117:                                   ; preds = %assign_optional115
+  br label %voiderr126
+
+noerr_block118:                                   ; preds = %after_check116
+  %57 = call i64 @std.io.File.flush(ptr %46)
+  %not_err120 = icmp eq i64 %57, 0
+  %58 = call i1 @llvm.expect.i1(i1 %not_err120, i1 true)
+  br i1 %58, label %after_check122, label %assign_optional121
+
+assign_optional121:                               ; preds = %noerr_block118
+  store i64 %57, ptr %error_var119, align 8
+  br label %guard_block123
+
+after_check122:                                   ; preds = %noerr_block118
+  br label %noerr_block124
+
+guard_block123:                                   ; preds = %assign_optional121
+  br label %voiderr126
+
+noerr_block124:                                   ; preds = %after_check122
+  %59 = load i64, ptr %len96, align 8
+  %add125 = add i64 %59, 1
+  br label %voiderr126
+
+voiderr126:                                       ; preds = %noerr_block124, %guard_block123, %guard_block117, %guard_block111
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal127, ptr align 16 @.__const.6, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x128, ptr align 4 %literal127, i32 20, i1 false)
+  %60 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x129, ptr align 16 %x128, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x132, ptr align 16 %x129, i32 20, i1 false)
+  %61 = insertvalue %any undef, ptr %60, 0
+  %62 = insertvalue %any %61, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %63 = insertvalue %any undef, ptr %x132, 0
+  %64 = insertvalue %any %63, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %64, ptr %varargslots134, align 16
+  %65 = insertvalue %"any[]" undef, ptr %varargslots134, 0
+  %"$$temp135" = insertvalue %"any[]" %65, i64 1, 1
+  store %any %62, ptr %taddr137, align 8
+  %lo138 = load i64, ptr %taddr137, align 8
+  %ptradd139 = getelementptr inbounds i8, ptr %taddr137, i64 8
+  %hi140 = load ptr, ptr %ptradd139, align 8
+  store %"any[]" %"$$temp135", ptr %indirectarg141, align 8
+  %66 = call i64 @std.io.fprintf(ptr %retparam136, i64 %lo138, ptr %hi140, ptr @.str.7, i64 2, ptr byval(%"any[]") align 8 %indirectarg141)
+  %not_err142 = icmp eq i64 %66, 0
+  %67 = call i1 @llvm.expect.i1(i1 %not_err142, i1 true)
+  br i1 %67, label %after_check144, label %assign_optional143
+
+assign_optional143:                               ; preds = %voiderr126
+  store i64 %66, ptr %error_var131, align 8
+  br label %guard_block145
+
+after_check144:                                   ; preds = %voiderr126
+  br label %noerr_block146
+
+guard_block145:                                   ; preds = %assign_optional143
+  br label %voiderr160
+
+noerr_block146:                                   ; preds = %after_check144
+  %68 = load i64, ptr %retparam136, align 8
+  store i64 %68, ptr %len130, align 8
+  %69 = call i64 @std.io.File.write_byte(ptr %60, i8 zeroext 10)
+  %not_err148 = icmp eq i64 %69, 0
+  %70 = call i1 @llvm.expect.i1(i1 %not_err148, i1 true)
+  br i1 %70, label %after_check150, label %assign_optional149
+
+assign_optional149:                               ; preds = %noerr_block146
+  store i64 %69, ptr %error_var147, align 8
+  br label %guard_block151
+
+after_check150:                                   ; preds = %noerr_block146
+  br label %noerr_block152
+
+guard_block151:                                   ; preds = %assign_optional149
+  br label %voiderr160
+
+noerr_block152:                                   ; preds = %after_check150
+  %71 = call i64 @std.io.File.flush(ptr %60)
+  %not_err154 = icmp eq i64 %71, 0
+  %72 = call i1 @llvm.expect.i1(i1 %not_err154, i1 true)
+  br i1 %72, label %after_check156, label %assign_optional155
+
+assign_optional155:                               ; preds = %noerr_block152
+  store i64 %71, ptr %error_var153, align 8
+  br label %guard_block157
+
+after_check156:                                   ; preds = %noerr_block152
+  br label %noerr_block158
+
+guard_block157:                                   ; preds = %assign_optional155
+  br label %voiderr160
+
+noerr_block158:                                   ; preds = %after_check156
+  %73 = load i64, ptr %len130, align 8
+  %add159 = add i64 %73, 1
+  br label %voiderr160
+
+voiderr160:                                       ; preds = %noerr_block158, %guard_block157, %guard_block151, %guard_block145
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define i32 @main() #0 {
+entry:
+  %literal = alloca [8 x i32], align 16
+  %x = alloca [8 x i32], align 16
+  %x1 = alloca [8 x i32], align 16
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca [8 x i32], align 16
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var4 = alloca i64, align 8
+  %error_var10 = alloca i64, align 8
+  %literal16 = alloca [5 x i32], align 16
+  %x21 = alloca [5 x i32], align 16
+  %x22 = alloca [5 x i32], align 16
+  %len23 = alloca i64, align 8
+  %error_var24 = alloca i64, align 8
+  %x25 = alloca [5 x i32], align 16
+  %varargslots27 = alloca [1 x %any], align 16
+  %retparam29 = alloca i64, align 8
+  %taddr30 = alloca %any, align 8
+  %indirectarg34 = alloca %"any[]", align 8
+  %error_var40 = alloca i64, align 8
+  %error_var46 = alloca i64, align 8
+  %literal54 = alloca [5 x i32], align 16
+  %x55 = alloca [5 x i32], align 16
+  %x56 = alloca [5 x i32], align 16
+  %len57 = alloca i64, align 8
+  %error_var58 = alloca i64, align 8
+  %x59 = alloca [5 x i32], align 16
+  %varargslots61 = alloca [1 x %any], align 16
+  %retparam63 = alloca i64, align 8
+  %taddr64 = alloca %any, align 8
+  %indirectarg68 = alloca %"any[]", align 8
+  %error_var74 = alloca i64, align 8
+  %error_var80 = alloca i64, align 8
+  %literal88 = alloca [8 x i32], align 16
+  %x89 = alloca [8 x i32], align 16
+  %x90 = alloca [8 x i32], align 16
+  %len91 = alloca i64, align 8
+  %error_var92 = alloca i64, align 8
+  %x93 = alloca [8 x i32], align 16
+  %varargslots95 = alloca [1 x %any], align 16
+  %retparam97 = alloca i64, align 8
+  %taddr98 = alloca %any, align 8
+  %indirectarg102 = alloca %"any[]", align 8
+  %error_var108 = alloca i64, align 8
+  %error_var114 = alloca i64, align 8
+  %literal122 = alloca [5 x i32], align 16
+  %x127 = alloca [5 x i32], align 16
+  %x128 = alloca [5 x i32], align 16
+  %len129 = alloca i64, align 8
+  %error_var130 = alloca i64, align 8
+  %x131 = alloca [5 x i32], align 16
+  %varargslots133 = alloca [1 x %any], align 16
+  %retparam135 = alloca i64, align 8
+  %taddr136 = alloca %any, align 8
+  %indirectarg140 = alloca %"any[]", align 8
+  %error_var146 = alloca i64, align 8
+  %error_var152 = alloca i64, align 8
+  %literal160 = alloca [4 x i32], align 16
+  %x161 = alloca [4 x i32], align 16
+  %x162 = alloca [4 x i32], align 16
+  %len163 = alloca i64, align 8
+  %error_var164 = alloca i64, align 8
+  %x165 = alloca [4 x i32], align 16
+  %varargslots167 = alloca [1 x %any], align 16
+  %retparam169 = alloca i64, align 8
+  %taddr170 = alloca %any, align 8
+  %indirectarg174 = alloca %"any[]", align 8
+  %error_var180 = alloca i64, align 8
+  %error_var186 = alloca i64, align 8
+  %literal194 = alloca [7 x i32], align 16
+  %x201 = alloca [7 x i32], align 16
+  %x202 = alloca [7 x i32], align 16
+  %len203 = alloca i64, align 8
+  %error_var204 = alloca i64, align 8
+  %x205 = alloca [7 x i32], align 16
+  %varargslots207 = alloca [1 x %any], align 16
+  %retparam209 = alloca i64, align 8
+  %taddr210 = alloca %any, align 8
+  %indirectarg214 = alloca %"any[]", align 8
+  %error_var220 = alloca i64, align 8
+  %error_var226 = alloca i64, align 8
+  %literal234 = alloca [8 x i32], align 16
+  %x235 = alloca [8 x i32], align 16
+  %x236 = alloca [8 x i32], align 16
+  %len237 = alloca i64, align 8
+  %error_var238 = alloca i64, align 8
+  %x239 = alloca [8 x i32], align 16
+  %varargslots241 = alloca [1 x %any], align 16
+  %retparam243 = alloca i64, align 8
+  %taddr244 = alloca %any, align 8
+  %indirectarg248 = alloca %"any[]", align 8
+  %error_var254 = alloca i64, align 8
+  %error_var260 = alloca i64, align 8
+  %literal268 = alloca [7 x i32], align 16
+  %x275 = alloca [7 x i32], align 16
+  %x276 = alloca [7 x i32], align 16
+  %len277 = alloca i64, align 8
+  %error_var278 = alloca i64, align 8
+  %x279 = alloca [7 x i32], align 16
+  %varargslots281 = alloca [1 x %any], align 16
+  %retparam283 = alloca i64, align 8
+  %taddr284 = alloca %any, align 8
+  %indirectarg288 = alloca %"any[]", align 8
+  %error_var294 = alloca i64, align 8
+  %error_var300 = alloca i64, align 8
+  %literal308 = alloca [10 x i32], align 16
+  %x312 = alloca [10 x i32], align 16
+  %x313 = alloca [10 x i32], align 16
+  %len314 = alloca i64, align 8
+  %error_var315 = alloca i64, align 8
+  %x316 = alloca [10 x i32], align 16
+  %varargslots318 = alloca [1 x %any], align 16
+  %retparam320 = alloca i64, align 8
+  %taddr321 = alloca %any, align 8
+  %indirectarg325 = alloca %"any[]", align 8
+  %error_var331 = alloca i64, align 8
+  %error_var337 = alloca i64, align 8
+  %literal345 = alloca [4 x i32], align 16
+  %x346 = alloca [4 x i32], align 16
+  %x347 = alloca [4 x i32], align 16
+  %len348 = alloca i64, align 8
+  %error_var349 = alloca i64, align 8
+  %x350 = alloca [4 x i32], align 16
+  %varargslots352 = alloca [1 x %any], align 16
+  %retparam354 = alloca i64, align 8
+  %taddr355 = alloca %any, align 8
+  %indirectarg359 = alloca %"any[]", align 8
+  %error_var365 = alloca i64, align 8
+  %error_var371 = alloca i64, align 8
+  %literal379 = alloca [4 x i32], align 16
+  %x380 = alloca [4 x i32], align 16
+  %x381 = alloca [4 x i32], align 16
+  %len382 = alloca i64, align 8
+  %error_var383 = alloca i64, align 8
+  %x384 = alloca [4 x i32], align 16
+  %varargslots386 = alloca [1 x %any], align 16
+  %retparam388 = alloca i64, align 8
+  %taddr389 = alloca %any, align 8
+  %indirectarg393 = alloca %"any[]", align 8
+  %error_var399 = alloca i64, align 8
+  %error_var405 = alloca i64, align 8
+  %literal413 = alloca [5 x i32], align 16
+  %x418 = alloca [5 x i32], align 16
+  %x419 = alloca [5 x i32], align 16
+  %len420 = alloca i64, align 8
+  %error_var421 = alloca i64, align 8
+  %x422 = alloca [5 x i32], align 16
+  %varargslots424 = alloca [1 x %any], align 16
+  %retparam426 = alloca i64, align 8
+  %taddr427 = alloca %any, align 8
+  %indirectarg431 = alloca %"any[]", align 8
+  %error_var437 = alloca i64, align 8
+  %error_var443 = alloca i64, align 8
+  %literal451 = alloca [5 x i32], align 16
+  %x452 = alloca [5 x i32], align 16
+  %x453 = alloca [5 x i32], align 16
+  %len454 = alloca i64, align 8
+  %error_var455 = alloca i64, align 8
+  %x456 = alloca [5 x i32], align 16
+  %varargslots458 = alloca [1 x %any], align 16
+  %retparam460 = alloca i64, align 8
+  %taddr461 = alloca %any, align 8
+  %indirectarg465 = alloca %"any[]", align 8
+  %error_var471 = alloca i64, align 8
+  %error_var477 = alloca i64, align 8
+  %literal485 = alloca [7 x i32], align 16
+  %x486 = alloca [7 x i32], align 16
+  %x487 = alloca [7 x i32], align 16
+  %len488 = alloca i64, align 8
+  %error_var489 = alloca i64, align 8
+  %x490 = alloca [7 x i32], align 16
+  %varargslots492 = alloca [1 x %any], align 16
+  %retparam494 = alloca i64, align 8
+  %taddr495 = alloca %any, align 8
+  %indirectarg499 = alloca %"any[]", align 8
+  %error_var505 = alloca i64, align 8
+  %error_var511 = alloca i64, align 8
+  %literal519 = alloca [7 x i32], align 16
+  %x526 = alloca [7 x i32], align 16
+  %x527 = alloca [7 x i32], align 16
+  %len528 = alloca i64, align 8
+  %error_var529 = alloca i64, align 8
+  %x530 = alloca [7 x i32], align 16
+  %varargslots532 = alloca [1 x %any], align 16
+  %retparam534 = alloca i64, align 8
+  %taddr535 = alloca %any, align 8
+  %indirectarg539 = alloca %"any[]", align 8
+  %error_var545 = alloca i64, align 8
+  %error_var551 = alloca i64, align 8
+  %literal559 = alloca [3 x [3 x i32]], align 16
+  %x569 = alloca [3 x [3 x i32]], align 16
+  %x570 = alloca [3 x [3 x i32]], align 16
+  %len571 = alloca i64, align 8
+  %error_var572 = alloca i64, align 8
+  %x573 = alloca [3 x [3 x i32]], align 16
+  %varargslots575 = alloca [1 x %any], align 16
+  %retparam577 = alloca i64, align 8
+  %taddr578 = alloca %any, align 8
+  %indirectarg582 = alloca %"any[]", align 8
+  %error_var588 = alloca i64, align 8
+  %error_var594 = alloca i64, align 8
+  %literal602 = alloca [3 x %Abc], align 4
+  %x605 = alloca [3 x %Abc], align 4
+  %x606 = alloca [3 x %Abc], align 4
+  %len607 = alloca i64, align 8
+  %error_var608 = alloca i64, align 8
+  %x609 = alloca [3 x %Abc], align 4
+  %varargslots611 = alloca [1 x %any], align 16
+  %retparam613 = alloca i64, align 8
+  %taddr614 = alloca %any, align 8
+  %indirectarg618 = alloca %"any[]", align 8
+  %error_var624 = alloca i64, align 8
+  %error_var630 = alloca i64, align 8
+  %y = alloca %Abc, align 4
+  %x638 = alloca %Abc, align 4
+  %x639 = alloca %Abc, align 4
+  %len640 = alloca i64, align 8
+  %error_var641 = alloca i64, align 8
+  %x642 = alloca %Abc, align 4
+  %varargslots644 = alloca [1 x %any], align 16
+  %retparam646 = alloca i64, align 8
+  %taddr647 = alloca %any, align 8
+  %indirectarg651 = alloca %"any[]", align 8
+  %error_var657 = alloca i64, align 8
+  %error_var663 = alloca i64, align 8
+  call void @llvm.memset.p0.i64(ptr align 4 %literal, i8 0, i64 32, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x, ptr align 4 %literal, i32 32, i1 false)
+  %0 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x1, ptr align 16 %x, i32 32, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x2, ptr align 16 %x1, i32 32, i1 false)
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %3 = insertvalue %any undef, ptr %x2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.a8$int" to i64), 1
+  store %any %4, ptr %varargslots, align 16
+  %5 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %5, i64 1, 1
+  store %any %2, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %6 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str.8, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %6, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %8 = load i64, ptr %retparam, align 8
+  store i64 %8, ptr %len, align 8
+  %9 = call i64 @std.io.File.write_byte(ptr %0, i8 zeroext 10)
+  %not_err5 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %10, label %after_check7, label %assign_optional6
+
+assign_optional6:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var4, align 8
+  br label %guard_block8
+
+after_check7:                                     ; preds = %noerr_block
+  br label %noerr_block9
+
+guard_block8:                                     ; preds = %assign_optional6
+  br label %voiderr
+
+noerr_block9:                                     ; preds = %after_check7
+  %11 = call i64 @std.io.File.flush(ptr %0)
+  %not_err11 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %12, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %noerr_block9
+  store i64 %11, ptr %error_var10, align 8
+  br label %guard_block14
+
+after_check13:                                    ; preds = %noerr_block9
+  br label %noerr_block15
+
+guard_block14:                                    ; preds = %assign_optional12
+  br label %voiderr
+
+noerr_block15:                                    ; preds = %after_check13
+  %13 = load i64, ptr %len, align 8
+  %add = add i64 %13, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block15, %guard_block14, %guard_block8, %guard_block
+  store i32 0, ptr %literal16, align 4
+  %ptradd17 = getelementptr inbounds i8, ptr %literal16, i64 4
+  store i32 0, ptr %ptradd17, align 4
+  %ptradd18 = getelementptr inbounds i8, ptr %literal16, i64 8
+  store i32 0, ptr %ptradd18, align 4
+  %ptradd19 = getelementptr inbounds i8, ptr %literal16, i64 12
+  store i32 1, ptr %ptradd19, align 4
+  %ptradd20 = getelementptr inbounds i8, ptr %literal16, i64 16
+  store i32 2, ptr %ptradd20, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x21, ptr align 4 %literal16, i32 20, i1 false)
+  %14 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x22, ptr align 16 %x21, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x25, ptr align 16 %x22, i32 20, i1 false)
+  %15 = insertvalue %any undef, ptr %14, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %17 = insertvalue %any undef, ptr %x25, 0
+  %18 = insertvalue %any %17, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %18, ptr %varargslots27, align 16
+  %19 = insertvalue %"any[]" undef, ptr %varargslots27, 0
+  %"$$temp28" = insertvalue %"any[]" %19, i64 1, 1
+  store %any %16, ptr %taddr30, align 8
+  %lo31 = load i64, ptr %taddr30, align 8
+  %ptradd32 = getelementptr inbounds i8, ptr %taddr30, i64 8
+  %hi33 = load ptr, ptr %ptradd32, align 8
+  store %"any[]" %"$$temp28", ptr %indirectarg34, align 8
+  %20 = call i64 @std.io.fprintf(ptr %retparam29, i64 %lo31, ptr %hi33, ptr @.str.9, i64 2, ptr byval(%"any[]") align 8 %indirectarg34)
+  %not_err35 = icmp eq i64 %20, 0
+  %21 = call i1 @llvm.expect.i1(i1 %not_err35, i1 true)
+  br i1 %21, label %after_check37, label %assign_optional36
+
+assign_optional36:                                ; preds = %voiderr
+  store i64 %20, ptr %error_var24, align 8
+  br label %guard_block38
+
+after_check37:                                    ; preds = %voiderr
+  br label %noerr_block39
+
+guard_block38:                                    ; preds = %assign_optional36
+  br label %voiderr53
+
+noerr_block39:                                    ; preds = %after_check37
+  %22 = load i64, ptr %retparam29, align 8
+  store i64 %22, ptr %len23, align 8
+  %23 = call i64 @std.io.File.write_byte(ptr %14, i8 zeroext 10)
+  %not_err41 = icmp eq i64 %23, 0
+  %24 = call i1 @llvm.expect.i1(i1 %not_err41, i1 true)
+  br i1 %24, label %after_check43, label %assign_optional42
+
+assign_optional42:                                ; preds = %noerr_block39
+  store i64 %23, ptr %error_var40, align 8
+  br label %guard_block44
+
+after_check43:                                    ; preds = %noerr_block39
+  br label %noerr_block45
+
+guard_block44:                                    ; preds = %assign_optional42
+  br label %voiderr53
+
+noerr_block45:                                    ; preds = %after_check43
+  %25 = call i64 @std.io.File.flush(ptr %14)
+  %not_err47 = icmp eq i64 %25, 0
+  %26 = call i1 @llvm.expect.i1(i1 %not_err47, i1 true)
+  br i1 %26, label %after_check49, label %assign_optional48
+
+assign_optional48:                                ; preds = %noerr_block45
+  store i64 %25, ptr %error_var46, align 8
+  br label %guard_block50
+
+after_check49:                                    ; preds = %noerr_block45
+  br label %noerr_block51
+
+guard_block50:                                    ; preds = %assign_optional48
+  br label %voiderr53
+
+noerr_block51:                                    ; preds = %after_check49
+  %27 = load i64, ptr %len23, align 8
+  %add52 = add i64 %27, 1
+  br label %voiderr53
+
+voiderr53:                                        ; preds = %noerr_block51, %guard_block50, %guard_block44, %guard_block38
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal54, ptr align 16 @.__const.10, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x55, ptr align 4 %literal54, i32 20, i1 false)
+  %28 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x56, ptr align 16 %x55, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x59, ptr align 16 %x56, i32 20, i1 false)
+  %29 = insertvalue %any undef, ptr %28, 0
+  %30 = insertvalue %any %29, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %31 = insertvalue %any undef, ptr %x59, 0
+  %32 = insertvalue %any %31, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %32, ptr %varargslots61, align 16
+  %33 = insertvalue %"any[]" undef, ptr %varargslots61, 0
+  %"$$temp62" = insertvalue %"any[]" %33, i64 1, 1
+  store %any %30, ptr %taddr64, align 8
+  %lo65 = load i64, ptr %taddr64, align 8
+  %ptradd66 = getelementptr inbounds i8, ptr %taddr64, i64 8
+  %hi67 = load ptr, ptr %ptradd66, align 8
+  store %"any[]" %"$$temp62", ptr %indirectarg68, align 8
+  %34 = call i64 @std.io.fprintf(ptr %retparam63, i64 %lo65, ptr %hi67, ptr @.str.11, i64 2, ptr byval(%"any[]") align 8 %indirectarg68)
+  %not_err69 = icmp eq i64 %34, 0
+  %35 = call i1 @llvm.expect.i1(i1 %not_err69, i1 true)
+  br i1 %35, label %after_check71, label %assign_optional70
+
+assign_optional70:                                ; preds = %voiderr53
+  store i64 %34, ptr %error_var58, align 8
+  br label %guard_block72
+
+after_check71:                                    ; preds = %voiderr53
+  br label %noerr_block73
+
+guard_block72:                                    ; preds = %assign_optional70
+  br label %voiderr87
+
+noerr_block73:                                    ; preds = %after_check71
+  %36 = load i64, ptr %retparam63, align 8
+  store i64 %36, ptr %len57, align 8
+  %37 = call i64 @std.io.File.write_byte(ptr %28, i8 zeroext 10)
+  %not_err75 = icmp eq i64 %37, 0
+  %38 = call i1 @llvm.expect.i1(i1 %not_err75, i1 true)
+  br i1 %38, label %after_check77, label %assign_optional76
+
+assign_optional76:                                ; preds = %noerr_block73
+  store i64 %37, ptr %error_var74, align 8
+  br label %guard_block78
+
+after_check77:                                    ; preds = %noerr_block73
+  br label %noerr_block79
+
+guard_block78:                                    ; preds = %assign_optional76
+  br label %voiderr87
+
+noerr_block79:                                    ; preds = %after_check77
+  %39 = call i64 @std.io.File.flush(ptr %28)
+  %not_err81 = icmp eq i64 %39, 0
+  %40 = call i1 @llvm.expect.i1(i1 %not_err81, i1 true)
+  br i1 %40, label %after_check83, label %assign_optional82
+
+assign_optional82:                                ; preds = %noerr_block79
+  store i64 %39, ptr %error_var80, align 8
+  br label %guard_block84
+
+after_check83:                                    ; preds = %noerr_block79
+  br label %noerr_block85
+
+guard_block84:                                    ; preds = %assign_optional82
+  br label %voiderr87
+
+noerr_block85:                                    ; preds = %after_check83
+  %41 = load i64, ptr %len57, align 8
+  %add86 = add i64 %41, 1
+  br label %voiderr87
+
+voiderr87:                                        ; preds = %noerr_block85, %guard_block84, %guard_block78, %guard_block72
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal88, ptr align 16 @.__const.12, i32 32, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x89, ptr align 4 %literal88, i32 32, i1 false)
+  %42 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x90, ptr align 16 %x89, i32 32, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x93, ptr align 16 %x90, i32 32, i1 false)
+  %43 = insertvalue %any undef, ptr %42, 0
+  %44 = insertvalue %any %43, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %45 = insertvalue %any undef, ptr %x93, 0
+  %46 = insertvalue %any %45, i64 ptrtoint (ptr @"$ct.a8$int" to i64), 1
+  store %any %46, ptr %varargslots95, align 16
+  %47 = insertvalue %"any[]" undef, ptr %varargslots95, 0
+  %"$$temp96" = insertvalue %"any[]" %47, i64 1, 1
+  store %any %44, ptr %taddr98, align 8
+  %lo99 = load i64, ptr %taddr98, align 8
+  %ptradd100 = getelementptr inbounds i8, ptr %taddr98, i64 8
+  %hi101 = load ptr, ptr %ptradd100, align 8
+  store %"any[]" %"$$temp96", ptr %indirectarg102, align 8
+  %48 = call i64 @std.io.fprintf(ptr %retparam97, i64 %lo99, ptr %hi101, ptr @.str.13, i64 2, ptr byval(%"any[]") align 8 %indirectarg102)
+  %not_err103 = icmp eq i64 %48, 0
+  %49 = call i1 @llvm.expect.i1(i1 %not_err103, i1 true)
+  br i1 %49, label %after_check105, label %assign_optional104
+
+assign_optional104:                               ; preds = %voiderr87
+  store i64 %48, ptr %error_var92, align 8
+  br label %guard_block106
+
+after_check105:                                   ; preds = %voiderr87
+  br label %noerr_block107
+
+guard_block106:                                   ; preds = %assign_optional104
+  br label %voiderr121
+
+noerr_block107:                                   ; preds = %after_check105
+  %50 = load i64, ptr %retparam97, align 8
+  store i64 %50, ptr %len91, align 8
+  %51 = call i64 @std.io.File.write_byte(ptr %42, i8 zeroext 10)
+  %not_err109 = icmp eq i64 %51, 0
+  %52 = call i1 @llvm.expect.i1(i1 %not_err109, i1 true)
+  br i1 %52, label %after_check111, label %assign_optional110
+
+assign_optional110:                               ; preds = %noerr_block107
+  store i64 %51, ptr %error_var108, align 8
+  br label %guard_block112
+
+after_check111:                                   ; preds = %noerr_block107
+  br label %noerr_block113
+
+guard_block112:                                   ; preds = %assign_optional110
+  br label %voiderr121
+
+noerr_block113:                                   ; preds = %after_check111
+  %53 = call i64 @std.io.File.flush(ptr %42)
+  %not_err115 = icmp eq i64 %53, 0
+  %54 = call i1 @llvm.expect.i1(i1 %not_err115, i1 true)
+  br i1 %54, label %after_check117, label %assign_optional116
+
+assign_optional116:                               ; preds = %noerr_block113
+  store i64 %53, ptr %error_var114, align 8
+  br label %guard_block118
+
+after_check117:                                   ; preds = %noerr_block113
+  br label %noerr_block119
+
+guard_block118:                                   ; preds = %assign_optional116
+  br label %voiderr121
+
+noerr_block119:                                   ; preds = %after_check117
+  %55 = load i64, ptr %len91, align 8
+  %add120 = add i64 %55, 1
+  br label %voiderr121
+
+voiderr121:                                       ; preds = %noerr_block119, %guard_block118, %guard_block112, %guard_block106
+  store i32 1, ptr %literal122, align 4
+  %ptradd123 = getelementptr inbounds i8, ptr %literal122, i64 4
+  store i32 2, ptr %ptradd123, align 4
+  %ptradd124 = getelementptr inbounds i8, ptr %literal122, i64 8
+  store i32 0, ptr %ptradd124, align 4
+  %ptradd125 = getelementptr inbounds i8, ptr %literal122, i64 12
+  store i32 0, ptr %ptradd125, align 4
+  %ptradd126 = getelementptr inbounds i8, ptr %literal122, i64 16
+  store i32 0, ptr %ptradd126, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x127, ptr align 4 %literal122, i32 20, i1 false)
+  %56 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x128, ptr align 16 %x127, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x131, ptr align 16 %x128, i32 20, i1 false)
+  %57 = insertvalue %any undef, ptr %56, 0
+  %58 = insertvalue %any %57, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %59 = insertvalue %any undef, ptr %x131, 0
+  %60 = insertvalue %any %59, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %60, ptr %varargslots133, align 16
+  %61 = insertvalue %"any[]" undef, ptr %varargslots133, 0
+  %"$$temp134" = insertvalue %"any[]" %61, i64 1, 1
+  store %any %58, ptr %taddr136, align 8
+  %lo137 = load i64, ptr %taddr136, align 8
+  %ptradd138 = getelementptr inbounds i8, ptr %taddr136, i64 8
+  %hi139 = load ptr, ptr %ptradd138, align 8
+  store %"any[]" %"$$temp134", ptr %indirectarg140, align 8
+  %62 = call i64 @std.io.fprintf(ptr %retparam135, i64 %lo137, ptr %hi139, ptr @.str.14, i64 2, ptr byval(%"any[]") align 8 %indirectarg140)
+  %not_err141 = icmp eq i64 %62, 0
+  %63 = call i1 @llvm.expect.i1(i1 %not_err141, i1 true)
+  br i1 %63, label %after_check143, label %assign_optional142
+
+assign_optional142:                               ; preds = %voiderr121
+  store i64 %62, ptr %error_var130, align 8
+  br label %guard_block144
+
+after_check143:                                   ; preds = %voiderr121
+  br label %noerr_block145
+
+guard_block144:                                   ; preds = %assign_optional142
+  br label %voiderr159
+
+noerr_block145:                                   ; preds = %after_check143
+  %64 = load i64, ptr %retparam135, align 8
+  store i64 %64, ptr %len129, align 8
+  %65 = call i64 @std.io.File.write_byte(ptr %56, i8 zeroext 10)
+  %not_err147 = icmp eq i64 %65, 0
+  %66 = call i1 @llvm.expect.i1(i1 %not_err147, i1 true)
+  br i1 %66, label %after_check149, label %assign_optional148
+
+assign_optional148:                               ; preds = %noerr_block145
+  store i64 %65, ptr %error_var146, align 8
+  br label %guard_block150
+
+after_check149:                                   ; preds = %noerr_block145
+  br label %noerr_block151
+
+guard_block150:                                   ; preds = %assign_optional148
+  br label %voiderr159
+
+noerr_block151:                                   ; preds = %after_check149
+  %67 = call i64 @std.io.File.flush(ptr %56)
+  %not_err153 = icmp eq i64 %67, 0
+  %68 = call i1 @llvm.expect.i1(i1 %not_err153, i1 true)
+  br i1 %68, label %after_check155, label %assign_optional154
+
+assign_optional154:                               ; preds = %noerr_block151
+  store i64 %67, ptr %error_var152, align 8
+  br label %guard_block156
+
+after_check155:                                   ; preds = %noerr_block151
+  br label %noerr_block157
+
+guard_block156:                                   ; preds = %assign_optional154
+  br label %voiderr159
+
+noerr_block157:                                   ; preds = %after_check155
+  %69 = load i64, ptr %len129, align 8
+  %add158 = add i64 %69, 1
+  br label %voiderr159
+
+voiderr159:                                       ; preds = %noerr_block157, %guard_block156, %guard_block150, %guard_block144
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal160, ptr align 16 @.__const.15, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x161, ptr align 4 %literal160, i32 16, i1 false)
+  %70 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x162, ptr align 16 %x161, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x165, ptr align 16 %x162, i32 16, i1 false)
+  %71 = insertvalue %any undef, ptr %70, 0
+  %72 = insertvalue %any %71, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %73 = insertvalue %any undef, ptr %x165, 0
+  %74 = insertvalue %any %73, i64 ptrtoint (ptr @"$ct.a4$int" to i64), 1
+  store %any %74, ptr %varargslots167, align 16
+  %75 = insertvalue %"any[]" undef, ptr %varargslots167, 0
+  %"$$temp168" = insertvalue %"any[]" %75, i64 1, 1
+  store %any %72, ptr %taddr170, align 8
+  %lo171 = load i64, ptr %taddr170, align 8
+  %ptradd172 = getelementptr inbounds i8, ptr %taddr170, i64 8
+  %hi173 = load ptr, ptr %ptradd172, align 8
+  store %"any[]" %"$$temp168", ptr %indirectarg174, align 8
+  %76 = call i64 @std.io.fprintf(ptr %retparam169, i64 %lo171, ptr %hi173, ptr @.str.16, i64 2, ptr byval(%"any[]") align 8 %indirectarg174)
+  %not_err175 = icmp eq i64 %76, 0
+  %77 = call i1 @llvm.expect.i1(i1 %not_err175, i1 true)
+  br i1 %77, label %after_check177, label %assign_optional176
+
+assign_optional176:                               ; preds = %voiderr159
+  store i64 %76, ptr %error_var164, align 8
+  br label %guard_block178
+
+after_check177:                                   ; preds = %voiderr159
+  br label %noerr_block179
+
+guard_block178:                                   ; preds = %assign_optional176
+  br label %voiderr193
+
+noerr_block179:                                   ; preds = %after_check177
+  %78 = load i64, ptr %retparam169, align 8
+  store i64 %78, ptr %len163, align 8
+  %79 = call i64 @std.io.File.write_byte(ptr %70, i8 zeroext 10)
+  %not_err181 = icmp eq i64 %79, 0
+  %80 = call i1 @llvm.expect.i1(i1 %not_err181, i1 true)
+  br i1 %80, label %after_check183, label %assign_optional182
+
+assign_optional182:                               ; preds = %noerr_block179
+  store i64 %79, ptr %error_var180, align 8
+  br label %guard_block184
+
+after_check183:                                   ; preds = %noerr_block179
+  br label %noerr_block185
+
+guard_block184:                                   ; preds = %assign_optional182
+  br label %voiderr193
+
+noerr_block185:                                   ; preds = %after_check183
+  %81 = call i64 @std.io.File.flush(ptr %70)
+  %not_err187 = icmp eq i64 %81, 0
+  %82 = call i1 @llvm.expect.i1(i1 %not_err187, i1 true)
+  br i1 %82, label %after_check189, label %assign_optional188
+
+assign_optional188:                               ; preds = %noerr_block185
+  store i64 %81, ptr %error_var186, align 8
+  br label %guard_block190
+
+after_check189:                                   ; preds = %noerr_block185
+  br label %noerr_block191
+
+guard_block190:                                   ; preds = %assign_optional188
+  br label %voiderr193
+
+noerr_block191:                                   ; preds = %after_check189
+  %83 = load i64, ptr %len163, align 8
+  %add192 = add i64 %83, 1
+  br label %voiderr193
+
+voiderr193:                                       ; preds = %noerr_block191, %guard_block190, %guard_block184, %guard_block178
+  store i32 1, ptr %literal194, align 4
+  %ptradd195 = getelementptr inbounds i8, ptr %literal194, i64 4
+  store i32 2, ptr %ptradd195, align 4
+  %ptradd196 = getelementptr inbounds i8, ptr %literal194, i64 8
+  store i32 99, ptr %ptradd196, align 4
+  %ptradd197 = getelementptr inbounds i8, ptr %literal194, i64 12
+  store i32 0, ptr %ptradd197, align 4
+  %ptradd198 = getelementptr inbounds i8, ptr %literal194, i64 16
+  store i32 0, ptr %ptradd198, align 4
+  %ptradd199 = getelementptr inbounds i8, ptr %literal194, i64 20
+  store i32 1, ptr %ptradd199, align 4
+  %ptradd200 = getelementptr inbounds i8, ptr %literal194, i64 24
+  store i32 0, ptr %ptradd200, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x201, ptr align 4 %literal194, i32 28, i1 false)
+  %84 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x202, ptr align 16 %x201, i32 28, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x205, ptr align 16 %x202, i32 28, i1 false)
+  %85 = insertvalue %any undef, ptr %84, 0
+  %86 = insertvalue %any %85, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %87 = insertvalue %any undef, ptr %x205, 0
+  %88 = insertvalue %any %87, i64 ptrtoint (ptr @"$ct.a7$int" to i64), 1
+  store %any %88, ptr %varargslots207, align 16
+  %89 = insertvalue %"any[]" undef, ptr %varargslots207, 0
+  %"$$temp208" = insertvalue %"any[]" %89, i64 1, 1
+  store %any %86, ptr %taddr210, align 8
+  %lo211 = load i64, ptr %taddr210, align 8
+  %ptradd212 = getelementptr inbounds i8, ptr %taddr210, i64 8
+  %hi213 = load ptr, ptr %ptradd212, align 8
+  store %"any[]" %"$$temp208", ptr %indirectarg214, align 8
+  %90 = call i64 @std.io.fprintf(ptr %retparam209, i64 %lo211, ptr %hi213, ptr @.str.17, i64 2, ptr byval(%"any[]") align 8 %indirectarg214)
+  %not_err215 = icmp eq i64 %90, 0
+  %91 = call i1 @llvm.expect.i1(i1 %not_err215, i1 true)
+  br i1 %91, label %after_check217, label %assign_optional216
+
+assign_optional216:                               ; preds = %voiderr193
+  store i64 %90, ptr %error_var204, align 8
+  br label %guard_block218
+
+after_check217:                                   ; preds = %voiderr193
+  br label %noerr_block219
+
+guard_block218:                                   ; preds = %assign_optional216
+  br label %voiderr233
+
+noerr_block219:                                   ; preds = %after_check217
+  %92 = load i64, ptr %retparam209, align 8
+  store i64 %92, ptr %len203, align 8
+  %93 = call i64 @std.io.File.write_byte(ptr %84, i8 zeroext 10)
+  %not_err221 = icmp eq i64 %93, 0
+  %94 = call i1 @llvm.expect.i1(i1 %not_err221, i1 true)
+  br i1 %94, label %after_check223, label %assign_optional222
+
+assign_optional222:                               ; preds = %noerr_block219
+  store i64 %93, ptr %error_var220, align 8
+  br label %guard_block224
+
+after_check223:                                   ; preds = %noerr_block219
+  br label %noerr_block225
+
+guard_block224:                                   ; preds = %assign_optional222
+  br label %voiderr233
+
+noerr_block225:                                   ; preds = %after_check223
+  %95 = call i64 @std.io.File.flush(ptr %84)
+  %not_err227 = icmp eq i64 %95, 0
+  %96 = call i1 @llvm.expect.i1(i1 %not_err227, i1 true)
+  br i1 %96, label %after_check229, label %assign_optional228
+
+assign_optional228:                               ; preds = %noerr_block225
+  store i64 %95, ptr %error_var226, align 8
+  br label %guard_block230
+
+after_check229:                                   ; preds = %noerr_block225
+  br label %noerr_block231
+
+guard_block230:                                   ; preds = %assign_optional228
+  br label %voiderr233
+
+noerr_block231:                                   ; preds = %after_check229
+  %97 = load i64, ptr %len203, align 8
+  %add232 = add i64 %97, 1
+  br label %voiderr233
+
+voiderr233:                                       ; preds = %noerr_block231, %guard_block230, %guard_block224, %guard_block218
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal234, ptr align 16 @.__const.18, i32 32, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x235, ptr align 4 %literal234, i32 32, i1 false)
+  %98 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x236, ptr align 16 %x235, i32 32, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x239, ptr align 16 %x236, i32 32, i1 false)
+  %99 = insertvalue %any undef, ptr %98, 0
+  %100 = insertvalue %any %99, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %101 = insertvalue %any undef, ptr %x239, 0
+  %102 = insertvalue %any %101, i64 ptrtoint (ptr @"$ct.a8$int" to i64), 1
+  store %any %102, ptr %varargslots241, align 16
+  %103 = insertvalue %"any[]" undef, ptr %varargslots241, 0
+  %"$$temp242" = insertvalue %"any[]" %103, i64 1, 1
+  store %any %100, ptr %taddr244, align 8
+  %lo245 = load i64, ptr %taddr244, align 8
+  %ptradd246 = getelementptr inbounds i8, ptr %taddr244, i64 8
+  %hi247 = load ptr, ptr %ptradd246, align 8
+  store %"any[]" %"$$temp242", ptr %indirectarg248, align 8
+  %104 = call i64 @std.io.fprintf(ptr %retparam243, i64 %lo245, ptr %hi247, ptr @.str.19, i64 2, ptr byval(%"any[]") align 8 %indirectarg248)
+  %not_err249 = icmp eq i64 %104, 0
+  %105 = call i1 @llvm.expect.i1(i1 %not_err249, i1 true)
+  br i1 %105, label %after_check251, label %assign_optional250
+
+assign_optional250:                               ; preds = %voiderr233
+  store i64 %104, ptr %error_var238, align 8
+  br label %guard_block252
+
+after_check251:                                   ; preds = %voiderr233
+  br label %noerr_block253
+
+guard_block252:                                   ; preds = %assign_optional250
+  br label %voiderr267
+
+noerr_block253:                                   ; preds = %after_check251
+  %106 = load i64, ptr %retparam243, align 8
+  store i64 %106, ptr %len237, align 8
+  %107 = call i64 @std.io.File.write_byte(ptr %98, i8 zeroext 10)
+  %not_err255 = icmp eq i64 %107, 0
+  %108 = call i1 @llvm.expect.i1(i1 %not_err255, i1 true)
+  br i1 %108, label %after_check257, label %assign_optional256
+
+assign_optional256:                               ; preds = %noerr_block253
+  store i64 %107, ptr %error_var254, align 8
+  br label %guard_block258
+
+after_check257:                                   ; preds = %noerr_block253
+  br label %noerr_block259
+
+guard_block258:                                   ; preds = %assign_optional256
+  br label %voiderr267
+
+noerr_block259:                                   ; preds = %after_check257
+  %109 = call i64 @std.io.File.flush(ptr %98)
+  %not_err261 = icmp eq i64 %109, 0
+  %110 = call i1 @llvm.expect.i1(i1 %not_err261, i1 true)
+  br i1 %110, label %after_check263, label %assign_optional262
+
+assign_optional262:                               ; preds = %noerr_block259
+  store i64 %109, ptr %error_var260, align 8
+  br label %guard_block264
+
+after_check263:                                   ; preds = %noerr_block259
+  br label %noerr_block265
+
+guard_block264:                                   ; preds = %assign_optional262
+  br label %voiderr267
+
+noerr_block265:                                   ; preds = %after_check263
+  %111 = load i64, ptr %len237, align 8
+  %add266 = add i64 %111, 1
+  br label %voiderr267
+
+voiderr267:                                       ; preds = %noerr_block265, %guard_block264, %guard_block258, %guard_block252
+  store i32 99, ptr %literal268, align 4
+  %ptradd269 = getelementptr inbounds i8, ptr %literal268, i64 4
+  store i32 0, ptr %ptradd269, align 4
+  %ptradd270 = getelementptr inbounds i8, ptr %literal268, i64 8
+  store i32 0, ptr %ptradd270, align 4
+  %ptradd271 = getelementptr inbounds i8, ptr %literal268, i64 12
+  store i32 1, ptr %ptradd271, align 4
+  %ptradd272 = getelementptr inbounds i8, ptr %literal268, i64 16
+  store i32 0, ptr %ptradd272, align 4
+  %ptradd273 = getelementptr inbounds i8, ptr %literal268, i64 20
+  store i32 1, ptr %ptradd273, align 4
+  %ptradd274 = getelementptr inbounds i8, ptr %literal268, i64 24
+  store i32 2, ptr %ptradd274, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x275, ptr align 4 %literal268, i32 28, i1 false)
+  %112 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x276, ptr align 16 %x275, i32 28, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x279, ptr align 16 %x276, i32 28, i1 false)
+  %113 = insertvalue %any undef, ptr %112, 0
+  %114 = insertvalue %any %113, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %115 = insertvalue %any undef, ptr %x279, 0
+  %116 = insertvalue %any %115, i64 ptrtoint (ptr @"$ct.a7$int" to i64), 1
+  store %any %116, ptr %varargslots281, align 16
+  %117 = insertvalue %"any[]" undef, ptr %varargslots281, 0
+  %"$$temp282" = insertvalue %"any[]" %117, i64 1, 1
+  store %any %114, ptr %taddr284, align 8
+  %lo285 = load i64, ptr %taddr284, align 8
+  %ptradd286 = getelementptr inbounds i8, ptr %taddr284, i64 8
+  %hi287 = load ptr, ptr %ptradd286, align 8
+  store %"any[]" %"$$temp282", ptr %indirectarg288, align 8
+  %118 = call i64 @std.io.fprintf(ptr %retparam283, i64 %lo285, ptr %hi287, ptr @.str.20, i64 2, ptr byval(%"any[]") align 8 %indirectarg288)
+  %not_err289 = icmp eq i64 %118, 0
+  %119 = call i1 @llvm.expect.i1(i1 %not_err289, i1 true)
+  br i1 %119, label %after_check291, label %assign_optional290
+
+assign_optional290:                               ; preds = %voiderr267
+  store i64 %118, ptr %error_var278, align 8
+  br label %guard_block292
+
+after_check291:                                   ; preds = %voiderr267
+  br label %noerr_block293
+
+guard_block292:                                   ; preds = %assign_optional290
+  br label %voiderr307
+
+noerr_block293:                                   ; preds = %after_check291
+  %120 = load i64, ptr %retparam283, align 8
+  store i64 %120, ptr %len277, align 8
+  %121 = call i64 @std.io.File.write_byte(ptr %112, i8 zeroext 10)
+  %not_err295 = icmp eq i64 %121, 0
+  %122 = call i1 @llvm.expect.i1(i1 %not_err295, i1 true)
+  br i1 %122, label %after_check297, label %assign_optional296
+
+assign_optional296:                               ; preds = %noerr_block293
+  store i64 %121, ptr %error_var294, align 8
+  br label %guard_block298
+
+after_check297:                                   ; preds = %noerr_block293
+  br label %noerr_block299
+
+guard_block298:                                   ; preds = %assign_optional296
+  br label %voiderr307
+
+noerr_block299:                                   ; preds = %after_check297
+  %123 = call i64 @std.io.File.flush(ptr %112)
+  %not_err301 = icmp eq i64 %123, 0
+  %124 = call i1 @llvm.expect.i1(i1 %not_err301, i1 true)
+  br i1 %124, label %after_check303, label %assign_optional302
+
+assign_optional302:                               ; preds = %noerr_block299
+  store i64 %123, ptr %error_var300, align 8
+  br label %guard_block304
+
+after_check303:                                   ; preds = %noerr_block299
+  br label %noerr_block305
+
+guard_block304:                                   ; preds = %assign_optional302
+  br label %voiderr307
+
+noerr_block305:                                   ; preds = %after_check303
+  %125 = load i64, ptr %len277, align 8
+  %add306 = add i64 %125, 1
+  br label %voiderr307
+
+voiderr307:                                       ; preds = %noerr_block305, %guard_block304, %guard_block298, %guard_block292
+  call void @llvm.memset.p0.i64(ptr align 4 %literal308, i8 0, i64 40, i1 false)
+  store i32 99, ptr %literal308, align 4
+  %ptradd309 = getelementptr inbounds i8, ptr %literal308, i64 12
+  store i32 1, ptr %ptradd309, align 4
+  %ptradd310 = getelementptr inbounds i8, ptr %literal308, i64 20
+  store i32 99, ptr %ptradd310, align 4
+  %ptradd311 = getelementptr inbounds i8, ptr %literal308, i64 32
+  store i32 1, ptr %ptradd311, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x312, ptr align 4 %literal308, i32 40, i1 false)
+  %126 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x313, ptr align 16 %x312, i32 40, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x316, ptr align 16 %x313, i32 40, i1 false)
+  %127 = insertvalue %any undef, ptr %126, 0
+  %128 = insertvalue %any %127, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %129 = insertvalue %any undef, ptr %x316, 0
+  %130 = insertvalue %any %129, i64 ptrtoint (ptr @"$ct.a10$int" to i64), 1
+  store %any %130, ptr %varargslots318, align 16
+  %131 = insertvalue %"any[]" undef, ptr %varargslots318, 0
+  %"$$temp319" = insertvalue %"any[]" %131, i64 1, 1
+  store %any %128, ptr %taddr321, align 8
+  %lo322 = load i64, ptr %taddr321, align 8
+  %ptradd323 = getelementptr inbounds i8, ptr %taddr321, i64 8
+  %hi324 = load ptr, ptr %ptradd323, align 8
+  store %"any[]" %"$$temp319", ptr %indirectarg325, align 8
+  %132 = call i64 @std.io.fprintf(ptr %retparam320, i64 %lo322, ptr %hi324, ptr @.str.21, i64 2, ptr byval(%"any[]") align 8 %indirectarg325)
+  %not_err326 = icmp eq i64 %132, 0
+  %133 = call i1 @llvm.expect.i1(i1 %not_err326, i1 true)
+  br i1 %133, label %after_check328, label %assign_optional327
+
+assign_optional327:                               ; preds = %voiderr307
+  store i64 %132, ptr %error_var315, align 8
+  br label %guard_block329
+
+after_check328:                                   ; preds = %voiderr307
+  br label %noerr_block330
+
+guard_block329:                                   ; preds = %assign_optional327
+  br label %voiderr344
+
+noerr_block330:                                   ; preds = %after_check328
+  %134 = load i64, ptr %retparam320, align 8
+  store i64 %134, ptr %len314, align 8
+  %135 = call i64 @std.io.File.write_byte(ptr %126, i8 zeroext 10)
+  %not_err332 = icmp eq i64 %135, 0
+  %136 = call i1 @llvm.expect.i1(i1 %not_err332, i1 true)
+  br i1 %136, label %after_check334, label %assign_optional333
+
+assign_optional333:                               ; preds = %noerr_block330
+  store i64 %135, ptr %error_var331, align 8
+  br label %guard_block335
+
+after_check334:                                   ; preds = %noerr_block330
+  br label %noerr_block336
+
+guard_block335:                                   ; preds = %assign_optional333
+  br label %voiderr344
+
+noerr_block336:                                   ; preds = %after_check334
+  %137 = call i64 @std.io.File.flush(ptr %126)
+  %not_err338 = icmp eq i64 %137, 0
+  %138 = call i1 @llvm.expect.i1(i1 %not_err338, i1 true)
+  br i1 %138, label %after_check340, label %assign_optional339
+
+assign_optional339:                               ; preds = %noerr_block336
+  store i64 %137, ptr %error_var337, align 8
+  br label %guard_block341
+
+after_check340:                                   ; preds = %noerr_block336
+  br label %noerr_block342
+
+guard_block341:                                   ; preds = %assign_optional339
+  br label %voiderr344
+
+noerr_block342:                                   ; preds = %after_check340
+  %139 = load i64, ptr %len314, align 8
+  %add343 = add i64 %139, 1
+  br label %voiderr344
+
+voiderr344:                                       ; preds = %noerr_block342, %guard_block341, %guard_block335, %guard_block329
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal345, ptr align 16 @.__const.22, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x346, ptr align 4 %literal345, i32 16, i1 false)
+  %140 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x347, ptr align 16 %x346, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x350, ptr align 16 %x347, i32 16, i1 false)
+  %141 = insertvalue %any undef, ptr %140, 0
+  %142 = insertvalue %any %141, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %143 = insertvalue %any undef, ptr %x350, 0
+  %144 = insertvalue %any %143, i64 ptrtoint (ptr @"$ct.a4$int" to i64), 1
+  store %any %144, ptr %varargslots352, align 16
+  %145 = insertvalue %"any[]" undef, ptr %varargslots352, 0
+  %"$$temp353" = insertvalue %"any[]" %145, i64 1, 1
+  store %any %142, ptr %taddr355, align 8
+  %lo356 = load i64, ptr %taddr355, align 8
+  %ptradd357 = getelementptr inbounds i8, ptr %taddr355, i64 8
+  %hi358 = load ptr, ptr %ptradd357, align 8
+  store %"any[]" %"$$temp353", ptr %indirectarg359, align 8
+  %146 = call i64 @std.io.fprintf(ptr %retparam354, i64 %lo356, ptr %hi358, ptr @.str.23, i64 2, ptr byval(%"any[]") align 8 %indirectarg359)
+  %not_err360 = icmp eq i64 %146, 0
+  %147 = call i1 @llvm.expect.i1(i1 %not_err360, i1 true)
+  br i1 %147, label %after_check362, label %assign_optional361
+
+assign_optional361:                               ; preds = %voiderr344
+  store i64 %146, ptr %error_var349, align 8
+  br label %guard_block363
+
+after_check362:                                   ; preds = %voiderr344
+  br label %noerr_block364
+
+guard_block363:                                   ; preds = %assign_optional361
+  br label %voiderr378
+
+noerr_block364:                                   ; preds = %after_check362
+  %148 = load i64, ptr %retparam354, align 8
+  store i64 %148, ptr %len348, align 8
+  %149 = call i64 @std.io.File.write_byte(ptr %140, i8 zeroext 10)
+  %not_err366 = icmp eq i64 %149, 0
+  %150 = call i1 @llvm.expect.i1(i1 %not_err366, i1 true)
+  br i1 %150, label %after_check368, label %assign_optional367
+
+assign_optional367:                               ; preds = %noerr_block364
+  store i64 %149, ptr %error_var365, align 8
+  br label %guard_block369
+
+after_check368:                                   ; preds = %noerr_block364
+  br label %noerr_block370
+
+guard_block369:                                   ; preds = %assign_optional367
+  br label %voiderr378
+
+noerr_block370:                                   ; preds = %after_check368
+  %151 = call i64 @std.io.File.flush(ptr %140)
+  %not_err372 = icmp eq i64 %151, 0
+  %152 = call i1 @llvm.expect.i1(i1 %not_err372, i1 true)
+  br i1 %152, label %after_check374, label %assign_optional373
+
+assign_optional373:                               ; preds = %noerr_block370
+  store i64 %151, ptr %error_var371, align 8
+  br label %guard_block375
+
+after_check374:                                   ; preds = %noerr_block370
+  br label %noerr_block376
+
+guard_block375:                                   ; preds = %assign_optional373
+  br label %voiderr378
+
+noerr_block376:                                   ; preds = %after_check374
+  %153 = load i64, ptr %len348, align 8
+  %add377 = add i64 %153, 1
+  br label %voiderr378
+
+voiderr378:                                       ; preds = %noerr_block376, %guard_block375, %guard_block369, %guard_block363
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal379, ptr align 16 @.__const.24, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x380, ptr align 4 %literal379, i32 16, i1 false)
+  %154 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x381, ptr align 16 %x380, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x384, ptr align 16 %x381, i32 16, i1 false)
+  %155 = insertvalue %any undef, ptr %154, 0
+  %156 = insertvalue %any %155, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %157 = insertvalue %any undef, ptr %x384, 0
+  %158 = insertvalue %any %157, i64 ptrtoint (ptr @"$ct.a4$int" to i64), 1
+  store %any %158, ptr %varargslots386, align 16
+  %159 = insertvalue %"any[]" undef, ptr %varargslots386, 0
+  %"$$temp387" = insertvalue %"any[]" %159, i64 1, 1
+  store %any %156, ptr %taddr389, align 8
+  %lo390 = load i64, ptr %taddr389, align 8
+  %ptradd391 = getelementptr inbounds i8, ptr %taddr389, i64 8
+  %hi392 = load ptr, ptr %ptradd391, align 8
+  store %"any[]" %"$$temp387", ptr %indirectarg393, align 8
+  %160 = call i64 @std.io.fprintf(ptr %retparam388, i64 %lo390, ptr %hi392, ptr @.str.25, i64 2, ptr byval(%"any[]") align 8 %indirectarg393)
+  %not_err394 = icmp eq i64 %160, 0
+  %161 = call i1 @llvm.expect.i1(i1 %not_err394, i1 true)
+  br i1 %161, label %after_check396, label %assign_optional395
+
+assign_optional395:                               ; preds = %voiderr378
+  store i64 %160, ptr %error_var383, align 8
+  br label %guard_block397
+
+after_check396:                                   ; preds = %voiderr378
+  br label %noerr_block398
+
+guard_block397:                                   ; preds = %assign_optional395
+  br label %voiderr412
+
+noerr_block398:                                   ; preds = %after_check396
+  %162 = load i64, ptr %retparam388, align 8
+  store i64 %162, ptr %len382, align 8
+  %163 = call i64 @std.io.File.write_byte(ptr %154, i8 zeroext 10)
+  %not_err400 = icmp eq i64 %163, 0
+  %164 = call i1 @llvm.expect.i1(i1 %not_err400, i1 true)
+  br i1 %164, label %after_check402, label %assign_optional401
+
+assign_optional401:                               ; preds = %noerr_block398
+  store i64 %163, ptr %error_var399, align 8
+  br label %guard_block403
+
+after_check402:                                   ; preds = %noerr_block398
+  br label %noerr_block404
+
+guard_block403:                                   ; preds = %assign_optional401
+  br label %voiderr412
+
+noerr_block404:                                   ; preds = %after_check402
+  %165 = call i64 @std.io.File.flush(ptr %154)
+  %not_err406 = icmp eq i64 %165, 0
+  %166 = call i1 @llvm.expect.i1(i1 %not_err406, i1 true)
+  br i1 %166, label %after_check408, label %assign_optional407
+
+assign_optional407:                               ; preds = %noerr_block404
+  store i64 %165, ptr %error_var405, align 8
+  br label %guard_block409
+
+after_check408:                                   ; preds = %noerr_block404
+  br label %noerr_block410
+
+guard_block409:                                   ; preds = %assign_optional407
+  br label %voiderr412
+
+noerr_block410:                                   ; preds = %after_check408
+  %167 = load i64, ptr %len382, align 8
+  %add411 = add i64 %167, 1
+  br label %voiderr412
+
+voiderr412:                                       ; preds = %noerr_block410, %guard_block409, %guard_block403, %guard_block397
+  store i32 0, ptr %literal413, align 4
+  %ptradd414 = getelementptr inbounds i8, ptr %literal413, i64 4
+  store i32 0, ptr %ptradd414, align 4
+  %ptradd415 = getelementptr inbounds i8, ptr %literal413, i64 8
+  store i32 0, ptr %ptradd415, align 4
+  %ptradd416 = getelementptr inbounds i8, ptr %literal413, i64 12
+  store i32 98, ptr %ptradd416, align 4
+  %ptradd417 = getelementptr inbounds i8, ptr %literal413, i64 16
+  store i32 91, ptr %ptradd417, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x418, ptr align 4 %literal413, i32 20, i1 false)
+  %168 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x419, ptr align 16 %x418, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x422, ptr align 16 %x419, i32 20, i1 false)
+  %169 = insertvalue %any undef, ptr %168, 0
+  %170 = insertvalue %any %169, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %171 = insertvalue %any undef, ptr %x422, 0
+  %172 = insertvalue %any %171, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %172, ptr %varargslots424, align 16
+  %173 = insertvalue %"any[]" undef, ptr %varargslots424, 0
+  %"$$temp425" = insertvalue %"any[]" %173, i64 1, 1
+  store %any %170, ptr %taddr427, align 8
+  %lo428 = load i64, ptr %taddr427, align 8
+  %ptradd429 = getelementptr inbounds i8, ptr %taddr427, i64 8
+  %hi430 = load ptr, ptr %ptradd429, align 8
+  store %"any[]" %"$$temp425", ptr %indirectarg431, align 8
+  %174 = call i64 @std.io.fprintf(ptr %retparam426, i64 %lo428, ptr %hi430, ptr @.str.26, i64 2, ptr byval(%"any[]") align 8 %indirectarg431)
+  %not_err432 = icmp eq i64 %174, 0
+  %175 = call i1 @llvm.expect.i1(i1 %not_err432, i1 true)
+  br i1 %175, label %after_check434, label %assign_optional433
+
+assign_optional433:                               ; preds = %voiderr412
+  store i64 %174, ptr %error_var421, align 8
+  br label %guard_block435
+
+after_check434:                                   ; preds = %voiderr412
+  br label %noerr_block436
+
+guard_block435:                                   ; preds = %assign_optional433
+  br label %voiderr450
+
+noerr_block436:                                   ; preds = %after_check434
+  %176 = load i64, ptr %retparam426, align 8
+  store i64 %176, ptr %len420, align 8
+  %177 = call i64 @std.io.File.write_byte(ptr %168, i8 zeroext 10)
+  %not_err438 = icmp eq i64 %177, 0
+  %178 = call i1 @llvm.expect.i1(i1 %not_err438, i1 true)
+  br i1 %178, label %after_check440, label %assign_optional439
+
+assign_optional439:                               ; preds = %noerr_block436
+  store i64 %177, ptr %error_var437, align 8
+  br label %guard_block441
+
+after_check440:                                   ; preds = %noerr_block436
+  br label %noerr_block442
+
+guard_block441:                                   ; preds = %assign_optional439
+  br label %voiderr450
+
+noerr_block442:                                   ; preds = %after_check440
+  %179 = call i64 @std.io.File.flush(ptr %168)
+  %not_err444 = icmp eq i64 %179, 0
+  %180 = call i1 @llvm.expect.i1(i1 %not_err444, i1 true)
+  br i1 %180, label %after_check446, label %assign_optional445
+
+assign_optional445:                               ; preds = %noerr_block442
+  store i64 %179, ptr %error_var443, align 8
+  br label %guard_block447
+
+after_check446:                                   ; preds = %noerr_block442
+  br label %noerr_block448
+
+guard_block447:                                   ; preds = %assign_optional445
+  br label %voiderr450
+
+noerr_block448:                                   ; preds = %after_check446
+  %181 = load i64, ptr %len420, align 8
+  %add449 = add i64 %181, 1
+  br label %voiderr450
+
+voiderr450:                                       ; preds = %noerr_block448, %guard_block447, %guard_block441, %guard_block435
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal451, ptr align 16 @.__const.27, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x452, ptr align 4 %literal451, i32 20, i1 false)
+  %182 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x453, ptr align 16 %x452, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x456, ptr align 16 %x453, i32 20, i1 false)
+  %183 = insertvalue %any undef, ptr %182, 0
+  %184 = insertvalue %any %183, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %185 = insertvalue %any undef, ptr %x456, 0
+  %186 = insertvalue %any %185, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %186, ptr %varargslots458, align 16
+  %187 = insertvalue %"any[]" undef, ptr %varargslots458, 0
+  %"$$temp459" = insertvalue %"any[]" %187, i64 1, 1
+  store %any %184, ptr %taddr461, align 8
+  %lo462 = load i64, ptr %taddr461, align 8
+  %ptradd463 = getelementptr inbounds i8, ptr %taddr461, i64 8
+  %hi464 = load ptr, ptr %ptradd463, align 8
+  store %"any[]" %"$$temp459", ptr %indirectarg465, align 8
+  %188 = call i64 @std.io.fprintf(ptr %retparam460, i64 %lo462, ptr %hi464, ptr @.str.28, i64 2, ptr byval(%"any[]") align 8 %indirectarg465)
+  %not_err466 = icmp eq i64 %188, 0
+  %189 = call i1 @llvm.expect.i1(i1 %not_err466, i1 true)
+  br i1 %189, label %after_check468, label %assign_optional467
+
+assign_optional467:                               ; preds = %voiderr450
+  store i64 %188, ptr %error_var455, align 8
+  br label %guard_block469
+
+after_check468:                                   ; preds = %voiderr450
+  br label %noerr_block470
+
+guard_block469:                                   ; preds = %assign_optional467
+  br label %voiderr484
+
+noerr_block470:                                   ; preds = %after_check468
+  %190 = load i64, ptr %retparam460, align 8
+  store i64 %190, ptr %len454, align 8
+  %191 = call i64 @std.io.File.write_byte(ptr %182, i8 zeroext 10)
+  %not_err472 = icmp eq i64 %191, 0
+  %192 = call i1 @llvm.expect.i1(i1 %not_err472, i1 true)
+  br i1 %192, label %after_check474, label %assign_optional473
+
+assign_optional473:                               ; preds = %noerr_block470
+  store i64 %191, ptr %error_var471, align 8
+  br label %guard_block475
+
+after_check474:                                   ; preds = %noerr_block470
+  br label %noerr_block476
+
+guard_block475:                                   ; preds = %assign_optional473
+  br label %voiderr484
+
+noerr_block476:                                   ; preds = %after_check474
+  %193 = call i64 @std.io.File.flush(ptr %182)
+  %not_err478 = icmp eq i64 %193, 0
+  %194 = call i1 @llvm.expect.i1(i1 %not_err478, i1 true)
+  br i1 %194, label %after_check480, label %assign_optional479
+
+assign_optional479:                               ; preds = %noerr_block476
+  store i64 %193, ptr %error_var477, align 8
+  br label %guard_block481
+
+after_check480:                                   ; preds = %noerr_block476
+  br label %noerr_block482
+
+guard_block481:                                   ; preds = %assign_optional479
+  br label %voiderr484
+
+noerr_block482:                                   ; preds = %after_check480
+  %195 = load i64, ptr %len454, align 8
+  %add483 = add i64 %195, 1
+  br label %voiderr484
+
+voiderr484:                                       ; preds = %noerr_block482, %guard_block481, %guard_block475, %guard_block469
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal485, ptr align 16 @.__const.29, i32 28, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x486, ptr align 4 %literal485, i32 28, i1 false)
+  %196 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x487, ptr align 16 %x486, i32 28, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x490, ptr align 16 %x487, i32 28, i1 false)
+  %197 = insertvalue %any undef, ptr %196, 0
+  %198 = insertvalue %any %197, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %199 = insertvalue %any undef, ptr %x490, 0
+  %200 = insertvalue %any %199, i64 ptrtoint (ptr @"$ct.a7$int" to i64), 1
+  store %any %200, ptr %varargslots492, align 16
+  %201 = insertvalue %"any[]" undef, ptr %varargslots492, 0
+  %"$$temp493" = insertvalue %"any[]" %201, i64 1, 1
+  store %any %198, ptr %taddr495, align 8
+  %lo496 = load i64, ptr %taddr495, align 8
+  %ptradd497 = getelementptr inbounds i8, ptr %taddr495, i64 8
+  %hi498 = load ptr, ptr %ptradd497, align 8
+  store %"any[]" %"$$temp493", ptr %indirectarg499, align 8
+  %202 = call i64 @std.io.fprintf(ptr %retparam494, i64 %lo496, ptr %hi498, ptr @.str.30, i64 2, ptr byval(%"any[]") align 8 %indirectarg499)
+  %not_err500 = icmp eq i64 %202, 0
+  %203 = call i1 @llvm.expect.i1(i1 %not_err500, i1 true)
+  br i1 %203, label %after_check502, label %assign_optional501
+
+assign_optional501:                               ; preds = %voiderr484
+  store i64 %202, ptr %error_var489, align 8
+  br label %guard_block503
+
+after_check502:                                   ; preds = %voiderr484
+  br label %noerr_block504
+
+guard_block503:                                   ; preds = %assign_optional501
+  br label %voiderr518
+
+noerr_block504:                                   ; preds = %after_check502
+  %204 = load i64, ptr %retparam494, align 8
+  store i64 %204, ptr %len488, align 8
+  %205 = call i64 @std.io.File.write_byte(ptr %196, i8 zeroext 10)
+  %not_err506 = icmp eq i64 %205, 0
+  %206 = call i1 @llvm.expect.i1(i1 %not_err506, i1 true)
+  br i1 %206, label %after_check508, label %assign_optional507
+
+assign_optional507:                               ; preds = %noerr_block504
+  store i64 %205, ptr %error_var505, align 8
+  br label %guard_block509
+
+after_check508:                                   ; preds = %noerr_block504
+  br label %noerr_block510
+
+guard_block509:                                   ; preds = %assign_optional507
+  br label %voiderr518
+
+noerr_block510:                                   ; preds = %after_check508
+  %207 = call i64 @std.io.File.flush(ptr %196)
+  %not_err512 = icmp eq i64 %207, 0
+  %208 = call i1 @llvm.expect.i1(i1 %not_err512, i1 true)
+  br i1 %208, label %after_check514, label %assign_optional513
+
+assign_optional513:                               ; preds = %noerr_block510
+  store i64 %207, ptr %error_var511, align 8
+  br label %guard_block515
+
+after_check514:                                   ; preds = %noerr_block510
+  br label %noerr_block516
+
+guard_block515:                                   ; preds = %assign_optional513
+  br label %voiderr518
+
+noerr_block516:                                   ; preds = %after_check514
+  %209 = load i64, ptr %len488, align 8
+  %add517 = add i64 %209, 1
+  br label %voiderr518
+
+voiderr518:                                       ; preds = %noerr_block516, %guard_block515, %guard_block509, %guard_block503
+  store i32 99, ptr %literal519, align 4
+  %ptradd520 = getelementptr inbounds i8, ptr %literal519, i64 4
+  store i32 0, ptr %ptradd520, align 4
+  %ptradd521 = getelementptr inbounds i8, ptr %literal519, i64 8
+  store i32 0, ptr %ptradd521, align 4
+  %ptradd522 = getelementptr inbounds i8, ptr %literal519, i64 12
+  store i32 1, ptr %ptradd522, align 4
+  %ptradd523 = getelementptr inbounds i8, ptr %literal519, i64 16
+  store i32 0, ptr %ptradd523, align 4
+  %ptradd524 = getelementptr inbounds i8, ptr %literal519, i64 20
+  store i32 98, ptr %ptradd524, align 4
+  %ptradd525 = getelementptr inbounds i8, ptr %literal519, i64 24
+  store i32 91, ptr %ptradd525, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x526, ptr align 4 %literal519, i32 28, i1 false)
+  %210 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x527, ptr align 16 %x526, i32 28, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x530, ptr align 16 %x527, i32 28, i1 false)
+  %211 = insertvalue %any undef, ptr %210, 0
+  %212 = insertvalue %any %211, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %213 = insertvalue %any undef, ptr %x530, 0
+  %214 = insertvalue %any %213, i64 ptrtoint (ptr @"$ct.a7$int" to i64), 1
+  store %any %214, ptr %varargslots532, align 16
+  %215 = insertvalue %"any[]" undef, ptr %varargslots532, 0
+  %"$$temp533" = insertvalue %"any[]" %215, i64 1, 1
+  store %any %212, ptr %taddr535, align 8
+  %lo536 = load i64, ptr %taddr535, align 8
+  %ptradd537 = getelementptr inbounds i8, ptr %taddr535, i64 8
+  %hi538 = load ptr, ptr %ptradd537, align 8
+  store %"any[]" %"$$temp533", ptr %indirectarg539, align 8
+  %216 = call i64 @std.io.fprintf(ptr %retparam534, i64 %lo536, ptr %hi538, ptr @.str.31, i64 2, ptr byval(%"any[]") align 8 %indirectarg539)
+  %not_err540 = icmp eq i64 %216, 0
+  %217 = call i1 @llvm.expect.i1(i1 %not_err540, i1 true)
+  br i1 %217, label %after_check542, label %assign_optional541
+
+assign_optional541:                               ; preds = %voiderr518
+  store i64 %216, ptr %error_var529, align 8
+  br label %guard_block543
+
+after_check542:                                   ; preds = %voiderr518
+  br label %noerr_block544
+
+guard_block543:                                   ; preds = %assign_optional541
+  br label %voiderr558
+
+noerr_block544:                                   ; preds = %after_check542
+  %218 = load i64, ptr %retparam534, align 8
+  store i64 %218, ptr %len528, align 8
+  %219 = call i64 @std.io.File.write_byte(ptr %210, i8 zeroext 10)
+  %not_err546 = icmp eq i64 %219, 0
+  %220 = call i1 @llvm.expect.i1(i1 %not_err546, i1 true)
+  br i1 %220, label %after_check548, label %assign_optional547
+
+assign_optional547:                               ; preds = %noerr_block544
+  store i64 %219, ptr %error_var545, align 8
+  br label %guard_block549
+
+after_check548:                                   ; preds = %noerr_block544
+  br label %noerr_block550
+
+guard_block549:                                   ; preds = %assign_optional547
+  br label %voiderr558
+
+noerr_block550:                                   ; preds = %after_check548
+  %221 = call i64 @std.io.File.flush(ptr %210)
+  %not_err552 = icmp eq i64 %221, 0
+  %222 = call i1 @llvm.expect.i1(i1 %not_err552, i1 true)
+  br i1 %222, label %after_check554, label %assign_optional553
+
+assign_optional553:                               ; preds = %noerr_block550
+  store i64 %221, ptr %error_var551, align 8
+  br label %guard_block555
+
+after_check554:                                   ; preds = %noerr_block550
+  br label %noerr_block556
+
+guard_block555:                                   ; preds = %assign_optional553
+  br label %voiderr558
+
+noerr_block556:                                   ; preds = %after_check554
+  %223 = load i64, ptr %len528, align 8
+  %add557 = add i64 %223, 1
+  br label %voiderr558
+
+voiderr558:                                       ; preds = %noerr_block556, %guard_block555, %guard_block549, %guard_block543
+  store i32 0, ptr %literal559, align 4
+  %ptradd560 = getelementptr inbounds i8, ptr %literal559, i64 4
+  store i32 0, ptr %ptradd560, align 4
+  %ptradd561 = getelementptr inbounds i8, ptr %literal559, i64 8
+  store i32 0, ptr %ptradd561, align 4
+  %ptradd562 = getelementptr inbounds i8, ptr %literal559, i64 12
+  store i32 0, ptr %ptradd562, align 4
+  %ptradd563 = getelementptr inbounds i8, ptr %ptradd562, i64 4
+  store i32 0, ptr %ptradd563, align 4
+  %ptradd564 = getelementptr inbounds i8, ptr %ptradd562, i64 8
+  store i32 0, ptr %ptradd564, align 4
+  %ptradd565 = getelementptr inbounds i8, ptr %literal559, i64 24
+  store i32 0, ptr %ptradd565, align 4
+  %ptradd566 = getelementptr inbounds i8, ptr %ptradd565, i64 4
+  store i32 0, ptr %ptradd566, align 4
+  %ptradd567 = getelementptr inbounds i8, ptr %ptradd565, i64 8
+  store i32 0, ptr %ptradd567, align 4
+  %ptradd568 = getelementptr inbounds i8, ptr %ptradd565, i64 4
+  store i32 5, ptr %ptradd568, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x569, ptr align 4 %literal559, i32 36, i1 false)
+  %224 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x570, ptr align 16 %x569, i32 36, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x573, ptr align 16 %x570, i32 36, i1 false)
+  %225 = insertvalue %any undef, ptr %224, 0
+  %226 = insertvalue %any %225, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %227 = insertvalue %any undef, ptr %x573, 0
+  %228 = insertvalue %any %227, i64 ptrtoint (ptr @"$ct.a3$a3$int" to i64), 1
+  store %any %228, ptr %varargslots575, align 16
+  %229 = insertvalue %"any[]" undef, ptr %varargslots575, 0
+  %"$$temp576" = insertvalue %"any[]" %229, i64 1, 1
+  store %any %226, ptr %taddr578, align 8
+  %lo579 = load i64, ptr %taddr578, align 8
+  %ptradd580 = getelementptr inbounds i8, ptr %taddr578, i64 8
+  %hi581 = load ptr, ptr %ptradd580, align 8
+  store %"any[]" %"$$temp576", ptr %indirectarg582, align 8
+  %230 = call i64 @std.io.fprintf(ptr %retparam577, i64 %lo579, ptr %hi581, ptr @.str.32, i64 2, ptr byval(%"any[]") align 8 %indirectarg582)
+  %not_err583 = icmp eq i64 %230, 0
+  %231 = call i1 @llvm.expect.i1(i1 %not_err583, i1 true)
+  br i1 %231, label %after_check585, label %assign_optional584
+
+assign_optional584:                               ; preds = %voiderr558
+  store i64 %230, ptr %error_var572, align 8
+  br label %guard_block586
+
+after_check585:                                   ; preds = %voiderr558
+  br label %noerr_block587
+
+guard_block586:                                   ; preds = %assign_optional584
+  br label %voiderr601
+
+noerr_block587:                                   ; preds = %after_check585
+  %232 = load i64, ptr %retparam577, align 8
+  store i64 %232, ptr %len571, align 8
+  %233 = call i64 @std.io.File.write_byte(ptr %224, i8 zeroext 10)
+  %not_err589 = icmp eq i64 %233, 0
+  %234 = call i1 @llvm.expect.i1(i1 %not_err589, i1 true)
+  br i1 %234, label %after_check591, label %assign_optional590
+
+assign_optional590:                               ; preds = %noerr_block587
+  store i64 %233, ptr %error_var588, align 8
+  br label %guard_block592
+
+after_check591:                                   ; preds = %noerr_block587
+  br label %noerr_block593
+
+guard_block592:                                   ; preds = %assign_optional590
+  br label %voiderr601
+
+noerr_block593:                                   ; preds = %after_check591
+  %235 = call i64 @std.io.File.flush(ptr %224)
+  %not_err595 = icmp eq i64 %235, 0
+  %236 = call i1 @llvm.expect.i1(i1 %not_err595, i1 true)
+  br i1 %236, label %after_check597, label %assign_optional596
+
+assign_optional596:                               ; preds = %noerr_block593
+  store i64 %235, ptr %error_var594, align 8
+  br label %guard_block598
+
+after_check597:                                   ; preds = %noerr_block593
+  br label %noerr_block599
+
+guard_block598:                                   ; preds = %assign_optional596
+  br label %voiderr601
+
+noerr_block599:                                   ; preds = %after_check597
+  %237 = load i64, ptr %len571, align 8
+  %add600 = add i64 %237, 1
+  br label %voiderr601
+
+voiderr601:                                       ; preds = %noerr_block599, %guard_block598, %guard_block592, %guard_block586
+  store i32 0, ptr %literal602, align 4
+  %ptradd603 = getelementptr inbounds i8, ptr %literal602, i64 4
+  store i32 11, ptr %ptradd603, align 4
+  %ptradd604 = getelementptr inbounds i8, ptr %literal602, i64 8
+  store i32 0, ptr %ptradd604, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x605, ptr align 4 %literal602, i32 12, i1 false)
+  %238 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x606, ptr align 4 %x605, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x609, ptr align 4 %x606, i32 12, i1 false)
+  %239 = insertvalue %any undef, ptr %238, 0
+  %240 = insertvalue %any %239, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %241 = insertvalue %any undef, ptr %x609, 0
+  %242 = insertvalue %any %241, i64 ptrtoint (ptr @"$ct.a3$test.Abc" to i64), 1
+  store %any %242, ptr %varargslots611, align 16
+  %243 = insertvalue %"any[]" undef, ptr %varargslots611, 0
+  %"$$temp612" = insertvalue %"any[]" %243, i64 1, 1
+  store %any %240, ptr %taddr614, align 8
+  %lo615 = load i64, ptr %taddr614, align 8
+  %ptradd616 = getelementptr inbounds i8, ptr %taddr614, i64 8
+  %hi617 = load ptr, ptr %ptradd616, align 8
+  store %"any[]" %"$$temp612", ptr %indirectarg618, align 8
+  %244 = call i64 @std.io.fprintf(ptr %retparam613, i64 %lo615, ptr %hi617, ptr @.str.33, i64 2, ptr byval(%"any[]") align 8 %indirectarg618)
+  %not_err619 = icmp eq i64 %244, 0
+  %245 = call i1 @llvm.expect.i1(i1 %not_err619, i1 true)
+  br i1 %245, label %after_check621, label %assign_optional620
+
+assign_optional620:                               ; preds = %voiderr601
+  store i64 %244, ptr %error_var608, align 8
+  br label %guard_block622
+
+after_check621:                                   ; preds = %voiderr601
+  br label %noerr_block623
+
+guard_block622:                                   ; preds = %assign_optional620
+  br label %voiderr637
+
+noerr_block623:                                   ; preds = %after_check621
+  %246 = load i64, ptr %retparam613, align 8
+  store i64 %246, ptr %len607, align 8
+  %247 = call i64 @std.io.File.write_byte(ptr %238, i8 zeroext 10)
+  %not_err625 = icmp eq i64 %247, 0
+  %248 = call i1 @llvm.expect.i1(i1 %not_err625, i1 true)
+  br i1 %248, label %after_check627, label %assign_optional626
+
+assign_optional626:                               ; preds = %noerr_block623
+  store i64 %247, ptr %error_var624, align 8
+  br label %guard_block628
+
+after_check627:                                   ; preds = %noerr_block623
+  br label %noerr_block629
+
+guard_block628:                                   ; preds = %assign_optional626
+  br label %voiderr637
+
+noerr_block629:                                   ; preds = %after_check627
+  %249 = call i64 @std.io.File.flush(ptr %238)
+  %not_err631 = icmp eq i64 %249, 0
+  %250 = call i1 @llvm.expect.i1(i1 %not_err631, i1 true)
+  br i1 %250, label %after_check633, label %assign_optional632
+
+assign_optional632:                               ; preds = %noerr_block629
+  store i64 %249, ptr %error_var630, align 8
+  br label %guard_block634
+
+after_check633:                                   ; preds = %noerr_block629
+  br label %noerr_block635
+
+guard_block634:                                   ; preds = %assign_optional632
+  br label %voiderr637
+
+noerr_block635:                                   ; preds = %after_check633
+  %251 = load i64, ptr %len607, align 8
+  %add636 = add i64 %251, 1
+  br label %voiderr637
+
+voiderr637:                                       ; preds = %noerr_block635, %guard_block634, %guard_block628, %guard_block622
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const.34, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x638, ptr align 4 %y, i32 4, i1 false)
+  %252 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x639, ptr align 4 %x638, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x642, ptr align 4 %x639, i32 4, i1 false)
+  %253 = insertvalue %any undef, ptr %252, 0
+  %254 = insertvalue %any %253, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %255 = insertvalue %any undef, ptr %x642, 0
+  %256 = insertvalue %any %255, i64 ptrtoint (ptr @"$ct.test.Abc" to i64), 1
+  store %any %256, ptr %varargslots644, align 16
+  %257 = insertvalue %"any[]" undef, ptr %varargslots644, 0
+  %"$$temp645" = insertvalue %"any[]" %257, i64 1, 1
+  store %any %254, ptr %taddr647, align 8
+  %lo648 = load i64, ptr %taddr647, align 8
+  %ptradd649 = getelementptr inbounds i8, ptr %taddr647, i64 8
+  %hi650 = load ptr, ptr %ptradd649, align 8
+  store %"any[]" %"$$temp645", ptr %indirectarg651, align 8
+  %258 = call i64 @std.io.fprintf(ptr %retparam646, i64 %lo648, ptr %hi650, ptr @.str.35, i64 2, ptr byval(%"any[]") align 8 %indirectarg651)
+  %not_err652 = icmp eq i64 %258, 0
+  %259 = call i1 @llvm.expect.i1(i1 %not_err652, i1 true)
+  br i1 %259, label %after_check654, label %assign_optional653
+
+assign_optional653:                               ; preds = %voiderr637
+  store i64 %258, ptr %error_var641, align 8
+  br label %guard_block655
+
+after_check654:                                   ; preds = %voiderr637
+  br label %noerr_block656
+
+guard_block655:                                   ; preds = %assign_optional653
+  br label %voiderr670
+
+noerr_block656:                                   ; preds = %after_check654
+  %260 = load i64, ptr %retparam646, align 8
+  store i64 %260, ptr %len640, align 8
+  %261 = call i64 @std.io.File.write_byte(ptr %252, i8 zeroext 10)
+  %not_err658 = icmp eq i64 %261, 0
+  %262 = call i1 @llvm.expect.i1(i1 %not_err658, i1 true)
+  br i1 %262, label %after_check660, label %assign_optional659
+
+assign_optional659:                               ; preds = %noerr_block656
+  store i64 %261, ptr %error_var657, align 8
+  br label %guard_block661
+
+after_check660:                                   ; preds = %noerr_block656
+  br label %noerr_block662
+
+guard_block661:                                   ; preds = %assign_optional659
+  br label %voiderr670
+
+noerr_block662:                                   ; preds = %after_check660
+  %263 = call i64 @std.io.File.flush(ptr %252)
+  %not_err664 = icmp eq i64 %263, 0
+  %264 = call i1 @llvm.expect.i1(i1 %not_err664, i1 true)
+  br i1 %264, label %after_check666, label %assign_optional665
+
+assign_optional665:                               ; preds = %noerr_block662
+  store i64 %263, ptr %error_var663, align 8
+  br label %guard_block667
+
+after_check666:                                   ; preds = %noerr_block662
+  br label %noerr_block668
+
+guard_block667:                                   ; preds = %assign_optional665
+  br label %voiderr670
+
+noerr_block668:                                   ; preds = %after_check666
+  %265 = load i64, ptr %len640, align 8
+  %add669 = add i64 %265, 1
+  br label %voiderr670
+
+voiderr670:                                       ; preds = %noerr_block668, %guard_block667, %guard_block661, %guard_block655
+  ret i32 0
+}
diff --git a/test/test_suite7/compile_time/concat_const.c3 b/test/test_suite7/compile_time/concat_const.c3
new file mode 100644
index 000000000..88766eeb0
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_const.c3
@@ -0,0 +1,22 @@
+module wi3enrich;
+import std::io;
+import std::os::env;
+
+macro String to_string(uint $num) @const
+{
+    char[] $res;
+    int $i = 0;
+    $for (;$num != 0;)
+        $res = $res +++ (char) ('0' + $num % 10);
+        $num = $num / 10;
+        $i++;
+    $endfor
+    $res = $res +++ '\0';
+    return (String) $res;
+}
+
+fn int main(String[] args)
+{
+	io::printn(to_string(4));
+    return 0;
+}
diff --git a/test/test_suite7/compile_time/concat_slice_array.c3 b/test/test_suite7/compile_time/concat_slice_array.c3
new file mode 100644
index 000000000..07037864e
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_slice_array.c3
@@ -0,0 +1,16 @@
+module test;
+
+const BITS = 8;
+fn int main()
+{
+ String $chars = "Abcd";
+ char $from = 2;
+ char[10] $bitmap = {};
+$foreach ( $c : $chars)
+        int $offset = ($c - $from) / BITS;
+        int $rem = ($c - $from) % BITS;
+        uint128 $value = $bitmap[$offset]; // #error: is out of range
+        $value |= 1u128 << $rem;
+        $bitmap = $bitmap[:$offset] +++ $value +++ $bitmap[$offset+1..]; // #error: End index out of bounds
+$endforeach
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/concat_slice_bytes.c3t b/test/test_suite7/compile_time/concat_slice_bytes.c3t
new file mode 100644
index 000000000..1885c53f7
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_slice_bytes.c3t
@@ -0,0 +1,18 @@
+module test;
+import std;
+
+fn void main()
+{
+	String $a = "hello";
+	char[] $b = { 'a', 'b' };
+	var $c = $a +++ $b;
+	String y = $c;
+	char[3] $bytes = x'0103ff';
+	var $d = $bytes +++ $b;
+	char[5] z = $d;
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [8 x i8] c"helloab\00", align 1
+@.bytes = private unnamed_addr constant [6 x i8] c"\01\03\FFab\00", align 1
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/concat_test.c3t b/test/test_suite7/compile_time/concat_test.c3t
new file mode 100644
index 000000000..97aa5439a
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_test.c3t
@@ -0,0 +1,506 @@
+// #target: macos-x64
+module test;
+import std;
+
+fn void test1()
+{
+	int[] $x = { 1, 2, 3, 4 };
+	var $y = $x +++ 5;
+	io::printn($y);
+}
+
+fn void test2()
+{
+	int[] $x = {  };
+	var $y = $x +++ 5;
+	io::printn($y);
+	$y = $y +++ 1;
+	io::printn($y);
+}
+
+fn void test3()
+{
+	int[] $x = { [5] = 2 };
+	var $y = $x +++ 5;
+	io::printn($y);
+}
+
+fn void test4()
+{
+	int[4] $x = { [1] = 2 };
+	var $y = $x +++ 5;
+	io::printn($y);
+}
+
+fn void test5()
+{
+	int[4] $x = {  };
+	var $y = $x +++ 5;
+	io::printn($y);
+}
+
+fn int main()
+{
+	test1();
+	test2();
+	test3();
+	test4();
+	test5();
+	return 0;
+}
+
+/* #expect: test.ll
+
+@.__const = private unnamed_addr constant [5 x i32] [i32 1, i32 2, i32 3, i32 4, i32 5], align 16
+@.__const.1 = private unnamed_addr constant [1 x i32] [i32 5], align 4
+@.__const.3 = private unnamed_addr constant [2 x i32] [i32 5, i32 1], align 4
+@.__const.5 = private unnamed_addr constant { [5 x i32], i32, i32 } { [5 x i32] zeroinitializer, i32 2, i32 5 }, align 16
+@.__const.7 = private unnamed_addr constant { i32, i32, [2 x i32], i32 } { i32 0, i32 2, [2 x i32] zeroinitializer, i32 5 }, align 16
+@.__const.9 = private unnamed_addr constant { [4 x i32], i32 } { [4 x i32] zeroinitializer, i32 5 }, align 16
+
+define void @test.test1() #0 {
+entry:
+  %literal = alloca [5 x i32], align 16
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca %"int[]", align 8
+  %retparam = alloca i64, align 8
+  %taddr2 = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var3 = alloca i64, align 8
+  %error_var9 = alloca i64, align 8
+
+define void @test.test2() #0 {
+entry:
+  %literal = alloca [1 x i32], align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca %"int[]", align 8
+  %retparam = alloca i64, align 8
+  %taddr2 = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var3 = alloca i64, align 8
+  %error_var9 = alloca i64, align 8
+  %literal15 = alloca [2 x i32], align 4
+  %len16 = alloca i64, align 8
+  %error_var17 = alloca i64, align 8
+  %varargslots19 = alloca [1 x %any], align 16
+  %taddr20 = alloca %"int[]", align 8
+  %retparam22 = alloca i64, align 8
+  %taddr23 = alloca %any, align 8
+  %indirectarg27 = alloca %"any[]", align 8
+  %error_var33 = alloca i64, align 8
+  %error_var39 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.1, i32 4, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[]" %0, i64 1, 1
+  %2 = call ptr @std.io.stdout()
+  %3 = insertvalue %any undef, ptr %2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %"int[]" %1, ptr %taddr, align 8
+  %5 = insertvalue %any undef, ptr %taddr, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %6, ptr %varargslots, align 16
+  %7 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %7, i64 1, 1
+  store %any %4, ptr %taddr2, align 8
+  %lo = load i64, ptr %taddr2, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr2, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %8 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str.2, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err = icmp eq i64 %8, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %9, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %8, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %10 = load i64, ptr %retparam, align 8
+  store i64 %10, ptr %len, align 8
+  %11 = call i64 @std.io.File.write_byte(ptr %2, i8 zeroext 10)
+  %not_err4 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err4, i1 true)
+  br i1 %12, label %after_check6, label %assign_optional5
+
+assign_optional5:                                 ; preds = %noerr_block
+  store i64 %11, ptr %error_var3, align 8
+  br label %guard_block7
+
+after_check6:                                     ; preds = %noerr_block
+  br label %noerr_block8
+
+guard_block7:                                     ; preds = %assign_optional5
+  br label %voiderr
+
+noerr_block8:                                     ; preds = %after_check6
+  %13 = call i64 @std.io.File.flush(ptr %2)
+  %not_err10 = icmp eq i64 %13, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %14, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %noerr_block8
+  store i64 %13, ptr %error_var9, align 8
+  br label %guard_block13
+
+after_check12:                                    ; preds = %noerr_block8
+  br label %noerr_block14
+
+guard_block13:                                    ; preds = %assign_optional11
+  br label %voiderr
+
+noerr_block14:                                    ; preds = %after_check12
+  %15 = load i64, ptr %len, align 8
+  %add = add i64 %15, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block14, %guard_block13, %guard_block7, %guard_block
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal15, ptr align 4 @.__const.3, i32 8, i1 false)
+  %16 = insertvalue %"int[]" undef, ptr %literal15, 0
+  %17 = insertvalue %"int[]" %16, i64 2, 1
+  %18 = call ptr @std.io.stdout()
+  %19 = insertvalue %any undef, ptr %18, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %"int[]" %17, ptr %taddr20, align 8
+  %21 = insertvalue %any undef, ptr %taddr20, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %22, ptr %varargslots19, align 16
+  %23 = insertvalue %"any[]" undef, ptr %varargslots19, 0
+  %"$$temp21" = insertvalue %"any[]" %23, i64 1, 1
+  store %any %20, ptr %taddr23, align 8
+  %lo24 = load i64, ptr %taddr23, align 8
+  %ptradd25 = getelementptr inbounds i8, ptr %taddr23, i64 8
+  %hi26 = load ptr, ptr %ptradd25, align 8
+  store %"any[]" %"$$temp21", ptr %indirectarg27, align 8
+  %24 = call i64 @std.io.fprintf(ptr %retparam22, i64 %lo24, ptr %hi26, ptr @.str.4, i64 2, ptr byval(%"any[]") align 8 %indirectarg27)
+  %not_err28 = icmp eq i64 %24, 0
+  %25 = call i1 @llvm.expect.i1(i1 %not_err28, i1 true)
+  br i1 %25, label %after_check30, label %assign_optional29
+
+assign_optional29:                                ; preds = %voiderr
+  store i64 %24, ptr %error_var17, align 8
+  br label %guard_block31
+
+after_check30:                                    ; preds = %voiderr
+  br label %noerr_block32
+
+guard_block31:                                    ; preds = %assign_optional29
+  br label %voiderr46
+
+noerr_block32:                                    ; preds = %after_check30
+  %26 = load i64, ptr %retparam22, align 8
+  store i64 %26, ptr %len16, align 8
+  %27 = call i64 @std.io.File.write_byte(ptr %18, i8 zeroext 10)
+  %not_err34 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err34, i1 true)
+  br i1 %28, label %after_check36, label %assign_optional35
+
+assign_optional35:                                ; preds = %noerr_block32
+  store i64 %27, ptr %error_var33, align 8
+  br label %guard_block37
+
+after_check36:                                    ; preds = %noerr_block32
+  br label %noerr_block38
+
+guard_block37:                                    ; preds = %assign_optional35
+  br label %voiderr46
+
+noerr_block38:                                    ; preds = %after_check36
+  %29 = call i64 @std.io.File.flush(ptr %18)
+  %not_err40 = icmp eq i64 %29, 0
+  %30 = call i1 @llvm.expect.i1(i1 %not_err40, i1 true)
+  br i1 %30, label %after_check42, label %assign_optional41
+
+assign_optional41:                                ; preds = %noerr_block38
+  store i64 %29, ptr %error_var39, align 8
+  br label %guard_block43
+
+after_check42:                                    ; preds = %noerr_block38
+  br label %noerr_block44
+
+guard_block43:                                    ; preds = %assign_optional41
+  br label %voiderr46
+
+noerr_block44:                                    ; preds = %after_check42
+  %31 = load i64, ptr %len16, align 8
+  %add45 = add i64 %31, 1
+  br label %voiderr46
+
+voiderr46:                                        ; preds = %noerr_block44, %guard_block43, %guard_block37, %guard_block31
+  ret void
+}
+
+define void @test.test3() #0 {
+entry:
+  %literal = alloca [7 x i32], align 16
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca %"int[]", align 8
+  %retparam = alloca i64, align 8
+  %taddr2 = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var3 = alloca i64, align 8
+  %error_var9 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 16 @.__const.5, i32 28, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[]" %0, i64 7, 1
+  %2 = call ptr @std.io.stdout()
+  %3 = insertvalue %any undef, ptr %2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %"int[]" %1, ptr %taddr, align 8
+  %5 = insertvalue %any undef, ptr %taddr, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %6, ptr %varargslots, align 16
+  %7 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %7, i64 1, 1
+  store %any %4, ptr %taddr2, align 8
+  %lo = load i64, ptr %taddr2, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr2, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %8 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str.6, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err = icmp eq i64 %8, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %9, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %8, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %10 = load i64, ptr %retparam, align 8
+  store i64 %10, ptr %len, align 8
+  %11 = call i64 @std.io.File.write_byte(ptr %2, i8 zeroext 10)
+  %not_err4 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err4, i1 true)
+  br i1 %12, label %after_check6, label %assign_optional5
+
+assign_optional5:                                 ; preds = %noerr_block
+  store i64 %11, ptr %error_var3, align 8
+  br label %guard_block7
+
+after_check6:                                     ; preds = %noerr_block
+  br label %noerr_block8
+
+guard_block7:                                     ; preds = %assign_optional5
+  br label %voiderr
+
+noerr_block8:                                     ; preds = %after_check6
+  %13 = call i64 @std.io.File.flush(ptr %2)
+  %not_err10 = icmp eq i64 %13, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %14, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %noerr_block8
+  store i64 %13, ptr %error_var9, align 8
+  br label %guard_block13
+
+after_check12:                                    ; preds = %noerr_block8
+  br label %noerr_block14
+
+guard_block13:                                    ; preds = %assign_optional11
+  br label %voiderr
+
+noerr_block14:                                    ; preds = %after_check12
+  %15 = load i64, ptr %len, align 8
+  %add = add i64 %15, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block14, %guard_block13, %guard_block7, %guard_block
+  ret void
+}
+
+define void @test.test4() #0 {
+entry:
+  %literal = alloca [5 x i32], align 16
+  %x = alloca [5 x i32], align 16
+  %x1 = alloca [5 x i32], align 16
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca [5 x i32], align 16
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var4 = alloca i64, align 8
+  %error_var10 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 16 @.__const.7, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x, ptr align 4 %literal, i32 20, i1 false)
+  %0 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x1, ptr align 16 %x, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x2, ptr align 16 %x1, i32 20, i1 false)
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %3 = insertvalue %any undef, ptr %x2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %4, ptr %varargslots, align 16
+  %5 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %5, i64 1, 1
+  store %any %2, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %6 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str.8, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %6, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %8 = load i64, ptr %retparam, align 8
+  store i64 %8, ptr %len, align 8
+  %9 = call i64 @std.io.File.write_byte(ptr %0, i8 zeroext 10)
+  %not_err5 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %10, label %after_check7, label %assign_optional6
+
+assign_optional6:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var4, align 8
+  br label %guard_block8
+
+after_check7:                                     ; preds = %noerr_block
+  br label %noerr_block9
+
+guard_block8:                                     ; preds = %assign_optional6
+  br label %voiderr
+
+noerr_block9:                                     ; preds = %after_check7
+  %11 = call i64 @std.io.File.flush(ptr %0)
+  %not_err11 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %12, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %noerr_block9
+  store i64 %11, ptr %error_var10, align 8
+  br label %guard_block14
+
+after_check13:                                    ; preds = %noerr_block9
+  br label %noerr_block15
+
+guard_block14:                                    ; preds = %assign_optional12
+  br label %voiderr
+
+noerr_block15:                                    ; preds = %after_check13
+  %13 = load i64, ptr %len, align 8
+  %add = add i64 %13, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block15, %guard_block14, %guard_block8, %guard_block
+  ret void
+}
+
+define void @test.test5() #0 {
+entry:
+  %literal = alloca [5 x i32], align 16
+  %x = alloca [5 x i32], align 16
+  %x1 = alloca [5 x i32], align 16
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca [5 x i32], align 16
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var4 = alloca i64, align 8
+  %error_var10 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 16 @.__const.9, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x, ptr align 4 %literal, i32 20, i1 false)
+  %0 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x1, ptr align 16 %x, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x2, ptr align 16 %x1, i32 20, i1 false)
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %3 = insertvalue %any undef, ptr %x2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.a5$int" to i64), 1
+  store %any %4, ptr %varargslots, align 16
+  %5 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %5, i64 1, 1
+  store %any %2, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %6 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str.10, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %6, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %8 = load i64, ptr %retparam, align 8
+  store i64 %8, ptr %len, align 8
+  %9 = call i64 @std.io.File.write_byte(ptr %0, i8 zeroext 10)
+  %not_err5 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %10, label %after_check7, label %assign_optional6
+
+assign_optional6:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var4, align 8
+  br label %guard_block8
+
+after_check7:                                     ; preds = %noerr_block
+  br label %noerr_block9
+
+guard_block8:                                     ; preds = %assign_optional6
+  br label %voiderr
+
+noerr_block9:                                     ; preds = %after_check7
+  %11 = call i64 @std.io.File.flush(ptr %0)
+  %not_err11 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %12, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %noerr_block9
+  store i64 %11, ptr %error_var10, align 8
+  br label %guard_block14
+
+after_check13:                                    ; preds = %noerr_block9
+  br label %noerr_block15
+
+guard_block14:                                    ; preds = %assign_optional12
+  br label %voiderr
+
+noerr_block15:                                    ; preds = %after_check13
+  %13 = load i64, ptr %len, align 8
+  %add = add i64 %13, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block15, %guard_block14, %guard_block8, %guard_block
+  ret void
+}
diff --git a/test/test_suite7/compile_time/concat_test_cases.c3 b/test/test_suite7/compile_time/concat_test_cases.c3
new file mode 100644
index 000000000..21c291d0f
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_test_cases.c3
@@ -0,0 +1,25 @@
+fn void main(String[] args)
+{
+	var $x = (int[2]){ 1, 2 } +++ (int[2]){ 4, 5 };
+	var $v = "foo" +++ "baz" +++ '!' +++ '?';
+	var $b = x'403322' +++ "baz";
+	var $b2 = x'40334a' +++ 55 +++ 55;
+	var $b3 = x'403322' +++ (char[2]) { 1, 2 };
+	var $b4 = x'403322' +++ (char[2]) { 1, 2 };
+	var $b5 = "foo" +++ { 55, 57 };
+	var $b6 = ((ichar[3])x'403322') +++ (ichar[2]) { 1, 2 };
+	var $b7 = (char[2]) { 1, 2 } +++ "foo";
+	assert($b7 == { 1, 2, 102, 111, 111});
+	assert($b5 == "foo79");
+	assert($b3 == $b4);
+	assert($b6 == { 0x40, 0x33, 0x22, 1, 2 });
+	int[4] $x2 = (int[2]){ 1, 2 }+++ (int[2]){ 4, 5 };
+	int[4] $y = { 1, 2 } +++ { 4, 5 };
+	assert($x == {1, 2, 4, 5});
+	assert($x2 == {1, 2, 4, 5});
+	assert($y == {1, 2, 4, 5});
+	assert($v == "foobaz!?");
+	assert($b == {64, 51, 34, 98, 97, 122});
+	assert($b2 == {64, 51, 74, 55, 55});
+	assert($b3 == {64, 51, 34, 1, 2});
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/concat_zero_slice.c3t b/test/test_suite7/compile_time/concat_zero_slice.c3t
new file mode 100644
index 000000000..aed583c0a
--- /dev/null
+++ b/test/test_suite7/compile_time/concat_zero_slice.c3t
@@ -0,0 +1,6 @@
+fn int main()
+{
+	char[] $res;
+	$res = { '0' } +++ $res;
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_and_or.c3 b/test/test_suite7/compile_time/ct_and_or.c3
new file mode 100644
index 000000000..bd2dc0a12
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_and_or.c3
@@ -0,0 +1,6 @@
+fn void test()
+{
+	$assert false ||| false ||| true ||| hello("");
+	$assert !(false &&& hello(""));
+	$assert !(true &&& true &&& false &&& hello(""));
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_assert_bug.c3 b/test/test_suite7/compile_time/ct_assert_bug.c3
new file mode 100644
index 000000000..5b6582bbc
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_assert_bug.c3
@@ -0,0 +1,25 @@
+// #target: macos-x64
+module testing;
+import std::io;
+
+fn void main()
+{
+    String[] s1;
+    String[] s2;
+    deep_equal(s1, s2);
+}
+
+macro bool deep_equal(a, b)
+{
+    $switch ($typeof(a).kindof)
+        $case SLICE:
+            if (a.len != b.len) return false;
+            foreach (i, x : a)
+            {
+                if (!deep_equal(x, b[i])) return false;
+            }
+            return true;
+        $default:
+            $assert(false); // #error: Compile time assert failed
+    $endswitch
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_builtin_time_date.c3t b/test/test_suite7/compile_time/ct_builtin_time_date.c3t
new file mode 100644
index 000000000..c00b36607
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_builtin_time_date.c3t
@@ -0,0 +1,318 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+macro printline()
+{
+	io::printfn("%d", $$LINE); io::printfn("%d", $$LINE_RAW);
+}
+fn void test(int x)
+{
+	io::printfn("%d", x);
+	if (x > 0) $$FUNCTION(x - 1);
+	io::printn($$TIME);
+	io::printn($$DATE);
+	printline();
+	io::printn($$FILE);
+	io::printn($$MODULE);
+}
+
+bool is_def = $defined($$FUNCTION);
+fn void main()
+{
+	bool is_def2 = $defined($$FUNCTION);
+	test(10);
+}
+
+/* #expect: test.ll
+
+define void @test.test(i32 %0) #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam2 = alloca i64, align 8
+  %error_var3 = alloca i64, align 8
+  %error_var9 = alloca i64, align 8
+  %len15 = alloca i64, align 8
+  %error_var16 = alloca i64, align 8
+  %retparam18 = alloca i64, align 8
+  %error_var24 = alloca i64, align 8
+  %error_var30 = alloca i64, align 8
+  %varargslots38 = alloca [1 x %any], align 16
+  %taddr39 = alloca i64, align 8
+  %retparam40 = alloca i64, align 8
+  %varargslots43 = alloca [1 x %any], align 16
+  %taddr44 = alloca i64, align 8
+  %retparam45 = alloca i64, align 8
+  %len48 = alloca i64, align 8
+  %error_var49 = alloca i64, align 8
+  %retparam51 = alloca i64, align 8
+  %error_var57 = alloca i64, align 8
+  %error_var63 = alloca i64, align 8
+  %len71 = alloca i64, align 8
+  %error_var72 = alloca i64, align 8
+  %retparam74 = alloca i64, align 8
+  %error_var80 = alloca i64, align 8
+  %error_var86 = alloca i64, align 8
+  store i32 %0, ptr %taddr, align 4
+  %1 = insertvalue %any undef, ptr %taddr, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  %gt = icmp sgt i32 %0, 0
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %sub = sub i32 %0, 1
+  call void @test.test(i32 %sub)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  %4 = call ptr @std.io.stdout()
+  %5 = call i64 @std.io.File.write(ptr %retparam2, ptr %4, ptr @.str.1, i64 8)
+  %not_err = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %6, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %if.exit
+  store i64 %5, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %if.exit
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %7 = load i64, ptr %retparam2, align 8
+  store i64 %7, ptr %len, align 8
+  %8 = call i64 @std.io.File.write_byte(ptr %4, i8 zeroext 10)
+  %not_err4 = icmp eq i64 %8, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err4, i1 true)
+  br i1 %9, label %after_check6, label %assign_optional5
+
+assign_optional5:                                 ; preds = %noerr_block
+  store i64 %8, ptr %error_var3, align 8
+  br label %guard_block7
+
+after_check6:                                     ; preds = %noerr_block
+  br label %noerr_block8
+
+guard_block7:                                     ; preds = %assign_optional5
+  br label %voiderr
+
+noerr_block8:                                     ; preds = %after_check6
+  %10 = call i64 @std.io.File.flush(ptr %4)
+  %not_err10 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %11, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %noerr_block8
+  store i64 %10, ptr %error_var9, align 8
+  br label %guard_block13
+
+after_check12:                                    ; preds = %noerr_block8
+  br label %noerr_block14
+
+guard_block13:                                    ; preds = %assign_optional11
+  br label %voiderr
+
+noerr_block14:                                    ; preds = %after_check12
+  %12 = load i64, ptr %len, align 8
+  %add = add i64 %12, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block14, %guard_block13, %guard_block7, %guard_block
+  %13 = call ptr @std.io.stdout()
+  %14 = call i64 @std.io.File.write(ptr %retparam18, ptr %13, ptr @.str.2, i64 10)
+  %not_err19 = icmp eq i64 %14, 0
+  %15 = call i1 @llvm.expect.i1(i1 %not_err19, i1 true)
+  br i1 %15, label %after_check21, label %assign_optional20
+
+assign_optional20:                                ; preds = %voiderr
+  store i64 %14, ptr %error_var16, align 8
+  br label %guard_block22
+
+after_check21:                                    ; preds = %voiderr
+  br label %noerr_block23
+
+guard_block22:                                    ; preds = %assign_optional20
+  br label %voiderr37
+
+noerr_block23:                                    ; preds = %after_check21
+  %16 = load i64, ptr %retparam18, align 8
+  store i64 %16, ptr %len15, align 8
+  %17 = call i64 @std.io.File.write_byte(ptr %13, i8 zeroext 10)
+  %not_err25 = icmp eq i64 %17, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err25, i1 true)
+  br i1 %18, label %after_check27, label %assign_optional26
+
+assign_optional26:                                ; preds = %noerr_block23
+  store i64 %17, ptr %error_var24, align 8
+  br label %guard_block28
+
+after_check27:                                    ; preds = %noerr_block23
+  br label %noerr_block29
+
+guard_block28:                                    ; preds = %assign_optional26
+  br label %voiderr37
+
+noerr_block29:                                    ; preds = %after_check27
+  %19 = call i64 @std.io.File.flush(ptr %13)
+  %not_err31 = icmp eq i64 %19, 0
+  %20 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %20, label %after_check33, label %assign_optional32
+
+assign_optional32:                                ; preds = %noerr_block29
+  store i64 %19, ptr %error_var30, align 8
+  br label %guard_block34
+
+after_check33:                                    ; preds = %noerr_block29
+  br label %noerr_block35
+
+guard_block34:                                    ; preds = %assign_optional32
+  br label %voiderr37
+
+noerr_block35:                                    ; preds = %after_check33
+  %21 = load i64, ptr %len15, align 8
+  %add36 = add i64 %21, 1
+  br label %voiderr37
+
+voiderr37:                                        ; preds = %noerr_block35, %guard_block34, %guard_block28, %guard_block22
+  store i64 14, ptr %taddr39, align 8
+  %22 = insertvalue %any undef, ptr %taddr39, 0
+  %23 = insertvalue %any %22, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %23, ptr %varargslots38, align 16
+  %24 = call i64 @std.io.printfn(ptr %retparam40, ptr @.str.3, i64 2, ptr %varargslots38, i64 1)
+  store i64 6, ptr %taddr44, align 8
+  %25 = insertvalue %any undef, ptr %taddr44, 0
+  %26 = insertvalue %any %25, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %26, ptr %varargslots43, align 16
+  %27 = call i64 @std.io.printfn(ptr %retparam45, ptr @.str.4, i64 2, ptr %varargslots43, i64 1)
+  %28 = call ptr @std.io.stdout()
+  %29 = call i64 @std.io.File.write(ptr %retparam51, ptr %28, ptr @.str.5, i64 23)
+  %not_err52 = icmp eq i64 %29, 0
+  %30 = call i1 @llvm.expect.i1(i1 %not_err52, i1 true)
+  br i1 %30, label %after_check54, label %assign_optional53
+
+assign_optional53:                                ; preds = %voiderr37
+  store i64 %29, ptr %error_var49, align 8
+  br label %guard_block55
+
+after_check54:                                    ; preds = %voiderr37
+  br label %noerr_block56
+
+guard_block55:                                    ; preds = %assign_optional53
+  br label %voiderr70
+
+noerr_block56:                                    ; preds = %after_check54
+  %31 = load i64, ptr %retparam51, align 8
+  store i64 %31, ptr %len48, align 8
+  %32 = call i64 @std.io.File.write_byte(ptr %28, i8 zeroext 10)
+  %not_err58 = icmp eq i64 %32, 0
+  %33 = call i1 @llvm.expect.i1(i1 %not_err58, i1 true)
+  br i1 %33, label %after_check60, label %assign_optional59
+
+assign_optional59:                                ; preds = %noerr_block56
+  store i64 %32, ptr %error_var57, align 8
+  br label %guard_block61
+
+after_check60:                                    ; preds = %noerr_block56
+  br label %noerr_block62
+
+guard_block61:                                    ; preds = %assign_optional59
+  br label %voiderr70
+
+noerr_block62:                                    ; preds = %after_check60
+  %34 = call i64 @std.io.File.flush(ptr %28)
+  %not_err64 = icmp eq i64 %34, 0
+  %35 = call i1 @llvm.expect.i1(i1 %not_err64, i1 true)
+  br i1 %35, label %after_check66, label %assign_optional65
+
+assign_optional65:                                ; preds = %noerr_block62
+  store i64 %34, ptr %error_var63, align 8
+  br label %guard_block67
+
+after_check66:                                    ; preds = %noerr_block62
+  br label %noerr_block68
+
+guard_block67:                                    ; preds = %assign_optional65
+  br label %voiderr70
+
+noerr_block68:                                    ; preds = %after_check66
+  %36 = load i64, ptr %len48, align 8
+  %add69 = add i64 %36, 1
+  br label %voiderr70
+
+voiderr70:                                        ; preds = %noerr_block68, %guard_block67, %guard_block61, %guard_block55
+  %37 = call ptr @std.io.stdout()
+  %38 = call i64 @std.io.File.write(ptr %retparam74, ptr %37, ptr @.str.6, i64 4)
+  %not_err75 = icmp eq i64 %38, 0
+  %39 = call i1 @llvm.expect.i1(i1 %not_err75, i1 true)
+  br i1 %39, label %after_check77, label %assign_optional76
+
+assign_optional76:                                ; preds = %voiderr70
+  store i64 %38, ptr %error_var72, align 8
+  br label %guard_block78
+
+after_check77:                                    ; preds = %voiderr70
+  br label %noerr_block79
+
+guard_block78:                                    ; preds = %assign_optional76
+  br label %voiderr93
+
+noerr_block79:                                    ; preds = %after_check77
+  %40 = load i64, ptr %retparam74, align 8
+  store i64 %40, ptr %len71, align 8
+  %41 = call i64 @std.io.File.write_byte(ptr %37, i8 zeroext 10)
+  %not_err81 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err81, i1 true)
+  br i1 %42, label %after_check83, label %assign_optional82
+
+assign_optional82:                                ; preds = %noerr_block79
+  store i64 %41, ptr %error_var80, align 8
+  br label %guard_block84
+
+after_check83:                                    ; preds = %noerr_block79
+  br label %noerr_block85
+
+guard_block84:                                    ; preds = %assign_optional82
+  br label %voiderr93
+
+noerr_block85:                                    ; preds = %after_check83
+  %43 = call i64 @std.io.File.flush(ptr %37)
+  %not_err87 = icmp eq i64 %43, 0
+  %44 = call i1 @llvm.expect.i1(i1 %not_err87, i1 true)
+  br i1 %44, label %after_check89, label %assign_optional88
+
+assign_optional88:                                ; preds = %noerr_block85
+  store i64 %43, ptr %error_var86, align 8
+  br label %guard_block90
+
+after_check89:                                    ; preds = %noerr_block85
+  br label %noerr_block91
+
+guard_block90:                                    ; preds = %assign_optional88
+  br label %voiderr93
+
+noerr_block91:                                    ; preds = %after_check89
+  %45 = load i64, ptr %len71, align 8
+  %add92 = add i64 %45, 1
+  br label %voiderr93
+
+voiderr93:                                        ; preds = %noerr_block91, %guard_block90, %guard_block84, %guard_block78
+  ret void
+}
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %is_def2 = alloca i8, align 1
+  store i8 1, ptr %is_def2, align 1
+  call void @test.test(i32 10)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_cast_example.c3t b/test/test_suite7/compile_time/ct_cast_example.c3t
new file mode 100644
index 000000000..6d346fefc
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_cast_example.c3t
@@ -0,0 +1,14 @@
+// #target: macos-x64
+module test;
+import std;
+
+fn void main()
+{
+	var $x = { 1, 2 };
+	$x = $x +++ 333;
+	io::printn((int[?])$x);
+}
+
+/* #expect: test.ll
+
+@.__const = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 333], align 4
diff --git a/test/test_suite7/compile_time/ct_declaration_in_if.c3t b/test/test_suite7/compile_time/ct_declaration_in_if.c3t
new file mode 100644
index 000000000..e1b4671cf
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_declaration_in_if.c3t
@@ -0,0 +1,40 @@
+// #target: macos-x64
+module test;
+import std;
+
+struct Vector3
+{
+    float x, y, z;
+}
+
+macro @printVecs(Vector3... vectors)
+{
+    for (int $i = 0; $i < vectors.len; ++$i)
+    {
+        // do something
+    }
+}
+
+fn void main()
+{
+    @printVecs({10, 5, 3}, {9, 6, 4}, {5, 4, 3});
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %literal = alloca [3 x %Vector3], align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 16 @.__const, i32 36, i1 false)
+  %0 = insertvalue %"Vector3[]" undef, ptr %literal, 0
+  %1 = insertvalue %"Vector3[]" %0, i64 3, 1
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.inc, %entry
+  %2 = extractvalue %"Vector3[]" %1, 1
+  %lt = icmp ult i64 0, %2
+  br i1 %lt, label %loop.inc, label %loop.exit
+loop.inc:                                         ; preds = %loop.cond
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_else_else.c3 b/test/test_suite7/compile_time/ct_else_else.c3
new file mode 100644
index 000000000..d6dcd7e23
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_else_else.c3
@@ -0,0 +1,8 @@
+// Issue #1824
+fn void main()
+{
+  $if true:
+  $else
+  $else // #error: Expected '$endif'
+  $endif
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_enum_values.c3t b/test/test_suite7/compile_time/ct_enum_values.c3t
new file mode 100644
index 000000000..c17c69701
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_enum_values.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module test;
+enum Vehicles
+{
+    CAR,
+    PLANE
+}
+
+macro elements($Type)
+{
+	int x;
+    $foreach ($x : $Type.values)
+        x = $x.ordinal;
+    $endforeach;
+}
+
+fn void main()
+{
+    elements(Vehicles);
+}
+
+/* #expect: test.ll
+
+entry:
+  %x = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  store i32 0, ptr %x, align 4
+  store i32 1, ptr %x, align 4
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_eval.c3t b/test/test_suite7/compile_time/ct_eval.c3t
new file mode 100644
index 000000000..e9fea6cb2
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_eval.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+module test;
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+	var $x = "abc";
+	int abc = 20;
+	$eval($x) = 444;
+	printf("Val: %d\n", $eval("abc"));
+}
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %abc = alloca i32, align 4
+  store i32 20, ptr %abc, align 4
+  store i32 444, ptr %abc, align 4
+  %0 = load i32, ptr %abc, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %0)
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_eval_sym.c3 b/test/test_suite7/compile_time/ct_eval_sym.c3
new file mode 100644
index 000000000..d351c8d95
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_eval_sym.c3
@@ -0,0 +1,5 @@
+fn int test()
+{
+	void* x = (void*)&$eval($$FUNC);
+	return 1;
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_eval_wrong.c3 b/test/test_suite7/compile_time/ct_eval_wrong.c3
new file mode 100644
index 000000000..e6a11fdb5
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_eval_wrong.c3
@@ -0,0 +1,10 @@
+import std::io;
+
+fn void main()
+{
+  $eval("foo()");  // #error: with $eval
+}
+fn void foo()
+{
+  io::printfn("foo");
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_for.c3t b/test/test_suite7/compile_time/ct_for.c3t
new file mode 100644
index 000000000..8d58ca058
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_for.c3t
@@ -0,0 +1,32 @@
+// #target: macos-x64
+
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+
+    $for (var $i = 0; $i < 3; $i++)
+       printf("Foo %d\n", $i);
+    $endfor;
+
+    $for ($i = 0, var $j = 100; $i < 4;)
+       printf("Foo %d %d\n", $i++, $j--);
+    $endfor;
+
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  call void (ptr, ...) @printf(ptr @.str, i32 0)
+  call void (ptr, ...) @printf(ptr @.str.1, i32 1)
+  call void (ptr, ...) @printf(ptr @.str.2, i32 2)
+  call void (ptr, ...) @printf(ptr @.str.3, i32 0, i32 100)
+  call void (ptr, ...) @printf(ptr @.str.4, i32 1, i32 99)
+  call void (ptr, ...) @printf(ptr @.str.5, i32 2, i32 98)
+  call void (ptr, ...) @printf(ptr @.str.6, i32 3, i32 97)
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_forach_with_defer.c3t b/test/test_suite7/compile_time/ct_forach_with_defer.c3t
new file mode 100644
index 000000000..a1176febe
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_forach_with_defer.c3t
@@ -0,0 +1,258 @@
+// #target: macos-x64
+module test;
+import std;
+// Issue #1912
+fn void test()
+{
+	defer io::printn("World!");
+	const HELLO = "Hello";
+	$for (var $i = 0; $i < 5; $i++)
+		io::printf("%c", HELLO[$i]);
+	$endfor
+}
+
+fn void main()
+{
+	defer io::printn("World!");
+
+	$foreach ($c : "Hello")
+		io::printf("%c", $c);
+	$endforeach
+	io::printn();
+}
+
+/* #expect: test.ll
+
+define void @test.test() #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i8, align 1
+  %retparam = alloca i64, align 8
+  %varargslots1 = alloca [1 x %any], align 16
+  %taddr2 = alloca i8, align 1
+  %retparam3 = alloca i64, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %taddr5 = alloca i8, align 1
+  %retparam6 = alloca i64, align 8
+  %varargslots7 = alloca [1 x %any], align 16
+  %taddr8 = alloca i8, align 1
+  %retparam9 = alloca i64, align 8
+  %varargslots10 = alloca [1 x %any], align 16
+  %taddr11 = alloca i8, align 1
+  %retparam12 = alloca i64, align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam14 = alloca i64, align 8
+  %error_var15 = alloca i64, align 8
+  %error_var21 = alloca i64, align 8
+  store i8 72, ptr %taddr, align 1
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = call i64 @std.io.printf(ptr %retparam, ptr @.str.1, i64 2, ptr %varargslots, i64 1)
+  store i8 101, ptr %taddr2, align 1
+  %3 = insertvalue %any undef, ptr %taddr2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %4, ptr %varargslots1, align 16
+  %5 = call i64 @std.io.printf(ptr %retparam3, ptr @.str.2, i64 2, ptr %varargslots1, i64 1)
+  store i8 108, ptr %taddr5, align 1
+  %6 = insertvalue %any undef, ptr %taddr5, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %7, ptr %varargslots4, align 16
+  %8 = call i64 @std.io.printf(ptr %retparam6, ptr @.str.3, i64 2, ptr %varargslots4, i64 1)
+  store i8 108, ptr %taddr8, align 1
+  %9 = insertvalue %any undef, ptr %taddr8, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %10, ptr %varargslots7, align 16
+  %11 = call i64 @std.io.printf(ptr %retparam9, ptr @.str.4, i64 2, ptr %varargslots7, i64 1)
+  store i8 111, ptr %taddr11, align 1
+  %12 = insertvalue %any undef, ptr %taddr11, 0
+  %13 = insertvalue %any %12, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %13, ptr %varargslots10, align 16
+  %14 = call i64 @std.io.printf(ptr %retparam12, ptr @.str.5, i64 2, ptr %varargslots10, i64 1)
+  %15 = call ptr @std.io.stdout()
+  %16 = call i64 @std.io.File.write(ptr %retparam14, ptr %15, ptr @.str.6, i64 6)
+  %not_err = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %17, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %16, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %18 = load i64, ptr %retparam14, align 8
+  store i64 %18, ptr %len, align 8
+  %19 = call i64 @std.io.File.write_byte(ptr %15, i8 zeroext 10)
+  %not_err16 = icmp eq i64 %19, 0
+  %20 = call i1 @llvm.expect.i1(i1 %not_err16, i1 true)
+  br i1 %20, label %after_check18, label %assign_optional17
+assign_optional17:                                ; preds = %noerr_block
+  store i64 %19, ptr %error_var15, align 8
+  br label %guard_block19
+after_check18:                                    ; preds = %noerr_block
+  br label %noerr_block20
+guard_block19:                                    ; preds = %assign_optional17
+  br label %voiderr
+noerr_block20:                                    ; preds = %after_check18
+  %21 = call i64 @std.io.File.flush(ptr %15)
+  %not_err22 = icmp eq i64 %21, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err22, i1 true)
+  br i1 %22, label %after_check24, label %assign_optional23
+assign_optional23:                                ; preds = %noerr_block20
+  store i64 %21, ptr %error_var21, align 8
+  br label %guard_block25
+after_check24:                                    ; preds = %noerr_block20
+  br label %noerr_block26
+guard_block25:                                    ; preds = %assign_optional23
+  br label %voiderr
+noerr_block26:                                    ; preds = %after_check24
+  %23 = load i64, ptr %len, align 8
+  %add = add i64 %23, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block26, %guard_block25, %guard_block19, %guard_block
+  ret void
+}
+
+define void @test.main() #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i8, align 1
+  %retparam = alloca i64, align 8
+  %varargslots1 = alloca [1 x %any], align 16
+  %taddr2 = alloca i8, align 1
+  %retparam3 = alloca i64, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %taddr5 = alloca i8, align 1
+  %retparam6 = alloca i64, align 8
+  %varargslots7 = alloca [1 x %any], align 16
+  %taddr8 = alloca i8, align 1
+  %retparam9 = alloca i64, align 8
+  %varargslots10 = alloca [1 x %any], align 16
+  %taddr11 = alloca i8, align 1
+  %retparam12 = alloca i64, align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam14 = alloca i64, align 8
+  %error_var15 = alloca i64, align 8
+  %error_var21 = alloca i64, align 8
+  %len27 = alloca i64, align 8
+  %error_var28 = alloca i64, align 8
+  %retparam30 = alloca i64, align 8
+  %error_var36 = alloca i64, align 8
+  %error_var42 = alloca i64, align 8
+  store i8 72, ptr %taddr, align 1
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = call i64 @std.io.printf(ptr %retparam, ptr @.str.7, i64 2, ptr %varargslots, i64 1)
+  store i8 101, ptr %taddr2, align 1
+  %3 = insertvalue %any undef, ptr %taddr2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %4, ptr %varargslots1, align 16
+  %5 = call i64 @std.io.printf(ptr %retparam3, ptr @.str.8, i64 2, ptr %varargslots1, i64 1)
+  store i8 108, ptr %taddr5, align 1
+  %6 = insertvalue %any undef, ptr %taddr5, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %7, ptr %varargslots4, align 16
+  %8 = call i64 @std.io.printf(ptr %retparam6, ptr @.str.9, i64 2, ptr %varargslots4, i64 1)
+  store i8 108, ptr %taddr8, align 1
+  %9 = insertvalue %any undef, ptr %taddr8, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %10, ptr %varargslots7, align 16
+  %11 = call i64 @std.io.printf(ptr %retparam9, ptr @.str.10, i64 2, ptr %varargslots7, i64 1)
+  store i8 111, ptr %taddr11, align 1
+  %12 = insertvalue %any undef, ptr %taddr11, 0
+  %13 = insertvalue %any %12, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %13, ptr %varargslots10, align 16
+  %14 = call i64 @std.io.printf(ptr %retparam12, ptr @.str.11, i64 2, ptr %varargslots10, i64 1)
+  %15 = call ptr @std.io.stdout()
+  %16 = call i64 @std.io.File.write(ptr %retparam14, ptr %15, ptr null, i64 0)
+  %not_err = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %17, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %16, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %18 = load i64, ptr %retparam14, align 8
+  store i64 %18, ptr %len, align 8
+  %19 = call i64 @std.io.File.write_byte(ptr %15, i8 zeroext 10)
+  %not_err16 = icmp eq i64 %19, 0
+  %20 = call i1 @llvm.expect.i1(i1 %not_err16, i1 true)
+  br i1 %20, label %after_check18, label %assign_optional17
+assign_optional17:                                ; preds = %noerr_block
+  store i64 %19, ptr %error_var15, align 8
+  br label %guard_block19
+after_check18:                                    ; preds = %noerr_block
+  br label %noerr_block20
+guard_block19:                                    ; preds = %assign_optional17
+  br label %voiderr
+noerr_block20:                                    ; preds = %after_check18
+  %21 = call i64 @std.io.File.flush(ptr %15)
+  %not_err22 = icmp eq i64 %21, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err22, i1 true)
+  br i1 %22, label %after_check24, label %assign_optional23
+assign_optional23:                                ; preds = %noerr_block20
+  store i64 %21, ptr %error_var21, align 8
+  br label %guard_block25
+after_check24:                                    ; preds = %noerr_block20
+  br label %noerr_block26
+guard_block25:                                    ; preds = %assign_optional23
+  br label %voiderr
+noerr_block26:                                    ; preds = %after_check24
+  %23 = load i64, ptr %len, align 8
+  %add = add i64 %23, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block26, %guard_block25, %guard_block19, %guard_block
+  %24 = call ptr @std.io.stdout()
+  %25 = call i64 @std.io.File.write(ptr %retparam30, ptr %24, ptr @.str.12, i64 6)
+  %not_err31 = icmp eq i64 %25, 0
+  %26 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %26, label %after_check33, label %assign_optional32
+assign_optional32:                                ; preds = %voiderr
+  store i64 %25, ptr %error_var28, align 8
+  br label %guard_block34
+after_check33:                                    ; preds = %voiderr
+  br label %noerr_block35
+guard_block34:                                    ; preds = %assign_optional32
+  br label %voiderr49
+noerr_block35:                                    ; preds = %after_check33
+  %27 = load i64, ptr %retparam30, align 8
+  store i64 %27, ptr %len27, align 8
+  %28 = call i64 @std.io.File.write_byte(ptr %24, i8 zeroext 10)
+  %not_err37 = icmp eq i64 %28, 0
+  %29 = call i1 @llvm.expect.i1(i1 %not_err37, i1 true)
+  br i1 %29, label %after_check39, label %assign_optional38
+assign_optional38:                                ; preds = %noerr_block35
+  store i64 %28, ptr %error_var36, align 8
+  br label %guard_block40
+after_check39:                                    ; preds = %noerr_block35
+  br label %noerr_block41
+guard_block40:                                    ; preds = %assign_optional38
+  br label %voiderr49
+noerr_block41:                                    ; preds = %after_check39
+  %30 = call i64 @std.io.File.flush(ptr %24)
+  %not_err43 = icmp eq i64 %30, 0
+  %31 = call i1 @llvm.expect.i1(i1 %not_err43, i1 true)
+  br i1 %31, label %after_check45, label %assign_optional44
+assign_optional44:                                ; preds = %noerr_block41
+  store i64 %30, ptr %error_var42, align 8
+  br label %guard_block46
+after_check45:                                    ; preds = %noerr_block41
+  br label %noerr_block47
+guard_block46:                                    ; preds = %assign_optional44
+  br label %voiderr49
+noerr_block47:                                    ; preds = %after_check45
+  %32 = load i64, ptr %len27, align 8
+  %add48 = add i64 %32, 1
+  br label %voiderr49
+voiderr49:                                        ; preds = %noerr_block47, %guard_block46, %guard_block40, %guard_block34
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_foreach.c3t b/test/test_suite7/compile_time/ct_foreach.c3t
new file mode 100644
index 000000000..7298b737a
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_foreach.c3t
@@ -0,0 +1,55 @@
+// #target: macos-x64
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+
+    var $foo = { 1, 10, 34 };
+    $foreach ($i : $foo)
+       printf("Foo %d\n", $i);
+    $endforeach;
+
+    $foreach ($i, $j : $foo)
+        printf("Bar %d %d\n", $i, $j);
+    $endforeach;
+
+    $foreach ($x : { 123, "abc", 1177, "hello" })
+    {
+        $typeof($x) z = $x;
+        $switch ($typeof($x))
+        $case int:
+            printf("Bar %d\n", $x);
+        $default:
+            printf("Bar %s\n", $x);
+        $endswitch
+    }
+    $endforeach;
+
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %z = alloca i32, align 4
+  %z1 = alloca %"char[]", align 8
+  %z2 = alloca i32, align 4
+  %z3 = alloca %"char[]", align 8
+  call void (ptr, ...) @printf(ptr @.str, i32 1)
+  call void (ptr, ...) @printf(ptr @.str.1, i32 10)
+  call void (ptr, ...) @printf(ptr @.str.2, i32 34)
+  call void (ptr, ...) @printf(ptr @.str.3, i32 0, i32 1)
+  call void (ptr, ...) @printf(ptr @.str.4, i32 1, i32 10)
+  call void (ptr, ...) @printf(ptr @.str.5, i32 2, i32 34)
+  store i32 123, ptr %z, align 4
+  call void (ptr, ...) @printf(ptr @.str.6, i32 123)
+  store %"char[]" { ptr @.str.7, i64 3 }, ptr %z1, align 8
+  call void (ptr, ...) @printf(ptr @.str.8, ptr @.str.9)
+  store i32 1177, ptr %z2, align 4
+  call void (ptr, ...) @printf(ptr @.str.10, i32 1177)
+  store %"char[]" { ptr @.str.11, i64 5 }, ptr %z3, align 8
+  call void (ptr, ...) @printf(ptr @.str.12, ptr @.str.13)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_func.c3t b/test/test_suite7/compile_time/ct_func.c3t
new file mode 100644
index 000000000..31c5a82d4
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_func.c3t
@@ -0,0 +1,29 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn int test()
+{
+	io::printn($$FUNC);
+	return 1;
+}
+
+struct Foo
+{ int x; }
+
+fn void Foo.tester(Foo* f)
+{
+	io::printn($$FUNC);
+}
+
+fn void main()
+{
+	Foo f;
+	f.tester();
+	test();
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [5 x i8] c"test\00", align 1
+@.str.1 = private unnamed_addr constant [11 x i8] c"Foo.tester\00", align 1
diff --git a/test/test_suite7/compile_time/ct_funcptr.c3t b/test/test_suite7/compile_time/ct_funcptr.c3t
new file mode 100644
index 000000000..f7203a80b
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_funcptr.c3t
@@ -0,0 +1,42 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn void test(int x)
+{
+	$typeof(&$$FUNCTION) ptr = &$$FUNCTION;
+	io::printfn("%d", x);
+	if (x > 0) ptr(x - 1);
+}
+
+fn void main()
+{
+	test(10);
+}
+
+/* #expect: test.ll
+
+define void @test.test(i32 %0) #0 {
+entry:
+  %ptr = alloca ptr, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  store ptr @test.test, ptr %ptr, align 8
+  store i32 %0, ptr %taddr, align 4
+  %1 = insertvalue %any undef, ptr %taddr, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  %gt = icmp sgt i32 %0, 0
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %4 = load ptr, ptr %ptr, align 8
+  %sub = sub i32 %0, 1
+  call void %4(i32 %sub)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_if.c3t b/test/test_suite7/compile_time/ct_if.c3t
new file mode 100644
index 000000000..fe7b39df6
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_if.c3t
@@ -0,0 +1,8 @@
+// #target: macos-x64
+int x @if(false) = 1;
+
+int d @if(true) = 5;
+
+/* #expect: ct_if.ll
+
+@ct_if.d = local_unnamed_addr global i32 5, align 4
diff --git a/test/test_suite7/compile_time/ct_if_folding.c3t b/test/test_suite7/compile_time/ct_if_folding.c3t
new file mode 100644
index 000000000..97126d475
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_if_folding.c3t
@@ -0,0 +1,32 @@
+// #target: macos-x64
+module test;
+
+macro void @test(bool $skip = false)
+{
+	$if $skip:
+
+	$else
+	int a;
+	int b;
+	defer
+	{
+		a = b;
+	}
+	$endif
+}
+
+fn int main() {
+	@test();
+    return 0;
+}
+/* #expect: test.ll
+
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  store i32 0, ptr %b, align 4
+  %0 = load i32, ptr %b, align 4
+  store i32 %0, ptr %a, align 4
+  ret i32 0
+}
diff --git a/test/test_suite7/compile_time/ct_left_hand_assign.c3t b/test/test_suite7/compile_time/ct_left_hand_assign.c3t
new file mode 100644
index 000000000..6203a92c7
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_left_hand_assign.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module foo;
+import std;
+
+macro @foo(#arg)
+{
+	#arg++;
+}
+
+module bar;
+import foo;
+
+fn void main()
+{
+    int $c = 0;
+    foo::@foo($c);
+}
+
+/* #expect: bar.ll
+
+entry:
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_memberof.c3t b/test/test_suite7/compile_time/ct_memberof.c3t
new file mode 100644
index 000000000..d60e6e732
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_memberof.c3t
@@ -0,0 +1,854 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn int hell() { return 1; }
+
+macro print_args($Type)
+{
+	var $params = $Type.params;
+	$foreach ($param : $params)
+		io::printn($param.nameof);
+	$endforeach;
+}
+
+bitstruct Bark : ulong
+{
+	int x : 1..4;
+	short y : 6..10;
+}
+
+struct Foo
+{
+	int x;
+	union test {
+		int y;
+		double z;
+	}
+	struct {
+		int abc;
+		int bcd;
+	 }
+	 double q;
+}
+macro print_fields($Type)
+{
+	io::printfn("Type: %s", $Type.nameof);
+	var $params = $Type.membersof;
+	$foreach ($param : $params)
+		io::printfn("%s: %s", $param.nameof, $param.typeid.nameof);
+	$endforeach;
+}
+
+fn void hello(int a, double b, int[4] d, args...) {}
+fn void test(int x)
+{
+	print_args($typeof(&test));
+	print_args($typeof(&hell));
+	print_args($typeof(&hello));
+	io::printn($typeof(&test).returns.nameof);
+	io::printn($typeof(&hell).returns.nameof);
+	print_fields(Foo);
+	print_fields(Bar);
+	print_fields(Bark);
+}
+
+struct BarInner
+{
+	char a;
+	char b;
+}
+
+struct Bar
+{
+	char a;
+	short b;
+	struct
+	{
+		union
+		{
+			BarInner y;
+			char z;
+			struct {
+				char z1;
+				char z2;
+			}
+		}
+	}
+	struct baz
+	{
+		int foo;
+	}
+}
+fn void main()
+{
+	var $x = Bar.a;
+
+	io::printfn("len: %d", Bar.membersof.len);
+	io::printfn("len: %d", Bar.baz.membersof.len);
+	io::printfn("a: %d %d", Bar.a.offsetof, Bar.a.alignof);
+	io::printfn("b: %d %d", Bar.b.offsetof, Bar.b.alignof);
+	io::printfn("y: %d %d", Bar.y.offsetof, Bar.y.alignof);
+	io::printfn("z: %d %d", Bar.z.offsetof, Bar.z.alignof);
+	io::printfn("z1: %d %d", Bar.z1.offsetof, Bar.z1.alignof);
+	io::printfn("z2: %d %d", Bar.z2.offsetof, Bar.z2.alignof);
+	io::printfn("baz: %d %d", Bar.baz.offsetof, Bar.baz.alignof);
+	io::printfn("Bar: %d", $x.alignof);
+	io::printfn("foo: %d %d", Bar.baz.foo.offsetof, Bar.baz.foo.alignof);
+
+	test(10);
+}
+
+/* #expect: test.ll
+
+define void @test.hello(i32 %0, double %1, i64 %2, i64 %3, ptr %4, i64 %5) #0 {
+entry:
+  %d = alloca [4 x i32], align 8
+  %args = alloca %"any[]", align 8
+  store i64 %2, ptr %d, align 8
+  %ptradd = getelementptr inbounds i8, ptr %d, i64 8
+  store i64 %3, ptr %ptradd, align 8
+  store ptr %4, ptr %args, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %args, i64 8
+  store i64 %5, ptr %ptradd1, align 8
+  ret void
+}
+
+; Function Attrs:
+define void @test.test(i32 %0) #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %len14 = alloca i64, align 8
+  %error_var15 = alloca i64, align 8
+  %retparam17 = alloca i64, align 8
+  %error_var23 = alloca i64, align 8
+  %error_var29 = alloca i64, align 8
+  %len37 = alloca i64, align 8
+  %error_var38 = alloca i64, align 8
+  %retparam40 = alloca i64, align 8
+  %error_var46 = alloca i64, align 8
+  %error_var52 = alloca i64, align 8
+  %len60 = alloca i64, align 8
+  %error_var61 = alloca i64, align 8
+  %retparam63 = alloca i64, align 8
+  %error_var69 = alloca i64, align 8
+  %error_var75 = alloca i64, align 8
+  %len83 = alloca i64, align 8
+  %error_var84 = alloca i64, align 8
+  %retparam86 = alloca i64, align 8
+  %error_var92 = alloca i64, align 8
+  %error_var98 = alloca i64, align 8
+  %len106 = alloca i64, align 8
+  %error_var107 = alloca i64, align 8
+  %retparam109 = alloca i64, align 8
+  %error_var115 = alloca i64, align 8
+  %error_var121 = alloca i64, align 8
+  %len129 = alloca i64, align 8
+  %error_var130 = alloca i64, align 8
+  %retparam132 = alloca i64, align 8
+  %error_var138 = alloca i64, align 8
+  %error_var144 = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca %"char[]", align 8
+  %retparam152 = alloca i64, align 8
+  %varargslots155 = alloca [2 x %any], align 16
+  %taddr156 = alloca %"char[]", align 8
+  %taddr157 = alloca %"char[]", align 8
+  %retparam158 = alloca i64, align 8
+  %varargslots161 = alloca [2 x %any], align 16
+  %taddr162 = alloca %"char[]", align 8
+  %taddr163 = alloca %"char[]", align 8
+  %retparam165 = alloca i64, align 8
+  %varargslots168 = alloca [2 x %any], align 16
+  %taddr169 = alloca %"char[]", align 8
+  %taddr170 = alloca %"char[]", align 8
+  %retparam172 = alloca i64, align 8
+  %varargslots175 = alloca [2 x %any], align 16
+  %taddr176 = alloca %"char[]", align 8
+  %taddr177 = alloca %"char[]", align 8
+  %retparam179 = alloca i64, align 8
+  %varargslots182 = alloca [1 x %any], align 16
+  %taddr183 = alloca %"char[]", align 8
+  %retparam184 = alloca i64, align 8
+  %varargslots187 = alloca [2 x %any], align 16
+  %taddr188 = alloca %"char[]", align 8
+  %taddr189 = alloca %"char[]", align 8
+  %retparam191 = alloca i64, align 8
+  %varargslots194 = alloca [2 x %any], align 16
+  %taddr195 = alloca %"char[]", align 8
+  %taddr196 = alloca %"char[]", align 8
+  %retparam198 = alloca i64, align 8
+  %varargslots201 = alloca [2 x %any], align 16
+  %taddr202 = alloca %"char[]", align 8
+  %taddr203 = alloca %"char[]", align 8
+  %retparam205 = alloca i64, align 8
+  %varargslots208 = alloca [2 x %any], align 16
+  %taddr209 = alloca %"char[]", align 8
+  %taddr210 = alloca %"char[]", align 8
+  %retparam212 = alloca i64, align 8
+  %varargslots215 = alloca [1 x %any], align 16
+  %taddr216 = alloca %"char[]", align 8
+  %retparam217 = alloca i64, align 8
+  %varargslots220 = alloca [2 x %any], align 16
+  %taddr221 = alloca %"char[]", align 8
+  %taddr222 = alloca %"char[]", align 8
+  %retparam224 = alloca i64, align 8
+  %varargslots227 = alloca [2 x %any], align 16
+  %taddr228 = alloca %"char[]", align 8
+  %taddr229 = alloca %"char[]", align 8
+  %retparam231 = alloca i64, align 8
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str, i64 3)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  %10 = call ptr @std.io.stdout()
+  %11 = call i64 @std.io.File.write(ptr %retparam17, ptr %10, ptr @.str.10, i64 3)
+  %not_err18 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err18, i1 true)
+  br i1 %12, label %after_check20, label %assign_optional19
+assign_optional19:                                ; preds = %voiderr
+  store i64 %11, ptr %error_var15, align 8
+  br label %guard_block21
+after_check20:                                    ; preds = %voiderr
+  br label %noerr_block22
+guard_block21:                                    ; preds = %assign_optional19
+  br label %voiderr36
+noerr_block22:                                    ; preds = %after_check20
+  %13 = load i64, ptr %retparam17, align 8
+  store i64 %13, ptr %len14, align 8
+  %14 = call i64 @std.io.File.write_byte(ptr %10, i8 zeroext 10)
+  %not_err24 = icmp eq i64 %14, 0
+  %15 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %15, label %after_check26, label %assign_optional25
+assign_optional25:                                ; preds = %noerr_block22
+  store i64 %14, ptr %error_var23, align 8
+  br label %guard_block27
+
+after_check26:                                    ; preds = %noerr_block22
+  br label %noerr_block28
+
+guard_block27:                                    ; preds = %assign_optional25
+  br label %voiderr36
+
+noerr_block28:                                    ; preds = %after_check26
+  %16 = call i64 @std.io.File.flush(ptr %10)
+  %not_err30 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err30, i1 true)
+  br i1 %17, label %after_check32, label %assign_optional31
+
+assign_optional31:                                ; preds = %noerr_block28
+  store i64 %16, ptr %error_var29, align 8
+  br label %guard_block33
+
+after_check32:                                    ; preds = %noerr_block28
+  br label %noerr_block34
+
+guard_block33:                                    ; preds = %assign_optional31
+  br label %voiderr36
+
+noerr_block34:                                    ; preds = %after_check32
+  %18 = load i64, ptr %len14, align 8
+  %add35 = add i64 %18, 1
+  br label %voiderr36
+
+voiderr36:                                        ; preds = %noerr_block34, %guard_block33, %guard_block27, %guard_block21
+  %19 = call ptr @std.io.stdout()
+  %20 = call i64 @std.io.File.write(ptr %retparam40, ptr %19, ptr @.str.11, i64 6)
+  %not_err41 = icmp eq i64 %20, 0
+  %21 = call i1 @llvm.expect.i1(i1 %not_err41, i1 true)
+  br i1 %21, label %after_check43, label %assign_optional42
+
+assign_optional42:                                ; preds = %voiderr36
+  store i64 %20, ptr %error_var38, align 8
+  br label %guard_block44
+
+after_check43:                                    ; preds = %voiderr36
+  br label %noerr_block45
+
+guard_block44:                                    ; preds = %assign_optional42
+  br label %voiderr59
+
+noerr_block45:                                    ; preds = %after_check43
+  %22 = load i64, ptr %retparam40, align 8
+  store i64 %22, ptr %len37, align 8
+  %23 = call i64 @std.io.File.write_byte(ptr %19, i8 zeroext 10)
+  %not_err47 = icmp eq i64 %23, 0
+  %24 = call i1 @llvm.expect.i1(i1 %not_err47, i1 true)
+  br i1 %24, label %after_check49, label %assign_optional48
+
+assign_optional48:                                ; preds = %noerr_block45
+  store i64 %23, ptr %error_var46, align 8
+  br label %guard_block50
+
+after_check49:                                    ; preds = %noerr_block45
+  br label %noerr_block51
+
+guard_block50:                                    ; preds = %assign_optional48
+  br label %voiderr59
+
+noerr_block51:                                    ; preds = %after_check49
+  %25 = call i64 @std.io.File.flush(ptr %19)
+  %not_err53 = icmp eq i64 %25, 0
+  %26 = call i1 @llvm.expect.i1(i1 %not_err53, i1 true)
+  br i1 %26, label %after_check55, label %assign_optional54
+
+assign_optional54:                                ; preds = %noerr_block51
+  store i64 %25, ptr %error_var52, align 8
+  br label %guard_block56
+
+after_check55:                                    ; preds = %noerr_block51
+  br label %noerr_block57
+
+guard_block56:                                    ; preds = %assign_optional54
+  br label %voiderr59
+
+noerr_block57:                                    ; preds = %after_check55
+  %27 = load i64, ptr %len37, align 8
+  %add58 = add i64 %27, 1
+  br label %voiderr59
+
+voiderr59:                                        ; preds = %noerr_block57, %guard_block56, %guard_block50, %guard_block44
+  %28 = call ptr @std.io.stdout()
+  %29 = call i64 @std.io.File.write(ptr %retparam63, ptr %28, ptr @.str.12, i64 6)
+  %not_err64 = icmp eq i64 %29, 0
+  %30 = call i1 @llvm.expect.i1(i1 %not_err64, i1 true)
+  br i1 %30, label %after_check66, label %assign_optional65
+
+assign_optional65:                                ; preds = %voiderr59
+  store i64 %29, ptr %error_var61, align 8
+  br label %guard_block67
+
+after_check66:                                    ; preds = %voiderr59
+  br label %noerr_block68
+
+guard_block67:                                    ; preds = %assign_optional65
+  br label %voiderr82
+
+noerr_block68:                                    ; preds = %after_check66
+  %31 = load i64, ptr %retparam63, align 8
+  store i64 %31, ptr %len60, align 8
+  %32 = call i64 @std.io.File.write_byte(ptr %28, i8 zeroext 10)
+  %not_err70 = icmp eq i64 %32, 0
+  %33 = call i1 @llvm.expect.i1(i1 %not_err70, i1 true)
+  br i1 %33, label %after_check72, label %assign_optional71
+
+assign_optional71:                                ; preds = %noerr_block68
+  store i64 %32, ptr %error_var69, align 8
+  br label %guard_block73
+
+after_check72:                                    ; preds = %noerr_block68
+  br label %noerr_block74
+
+guard_block73:                                    ; preds = %assign_optional71
+  br label %voiderr82
+
+noerr_block74:                                    ; preds = %after_check72
+  %34 = call i64 @std.io.File.flush(ptr %28)
+  %not_err76 = icmp eq i64 %34, 0
+  %35 = call i1 @llvm.expect.i1(i1 %not_err76, i1 true)
+  br i1 %35, label %after_check78, label %assign_optional77
+
+assign_optional77:                                ; preds = %noerr_block74
+  store i64 %34, ptr %error_var75, align 8
+  br label %guard_block79
+
+after_check78:                                    ; preds = %noerr_block74
+  br label %noerr_block80
+
+guard_block79:                                    ; preds = %assign_optional77
+  br label %voiderr82
+
+noerr_block80:                                    ; preds = %after_check78
+  %36 = load i64, ptr %len60, align 8
+  %add81 = add i64 %36, 1
+  br label %voiderr82
+
+voiderr82:                                        ; preds = %noerr_block80, %guard_block79, %guard_block73, %guard_block67
+  %37 = call ptr @std.io.stdout()
+  %38 = call i64 @std.io.File.write(ptr %retparam86, ptr %37, ptr @.str.13, i64 5)
+  %not_err87 = icmp eq i64 %38, 0
+  %39 = call i1 @llvm.expect.i1(i1 %not_err87, i1 true)
+  br i1 %39, label %after_check89, label %assign_optional88
+
+assign_optional88:                                ; preds = %voiderr82
+  store i64 %38, ptr %error_var84, align 8
+  br label %guard_block90
+
+after_check89:                                    ; preds = %voiderr82
+  br label %noerr_block91
+
+guard_block90:                                    ; preds = %assign_optional88
+  br label %voiderr105
+
+noerr_block91:                                    ; preds = %after_check89
+  %40 = load i64, ptr %retparam86, align 8
+  store i64 %40, ptr %len83, align 8
+  %41 = call i64 @std.io.File.write_byte(ptr %37, i8 zeroext 10)
+  %not_err93 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err93, i1 true)
+  br i1 %42, label %after_check95, label %assign_optional94
+
+assign_optional94:                                ; preds = %noerr_block91
+  store i64 %41, ptr %error_var92, align 8
+  br label %guard_block96
+
+after_check95:                                    ; preds = %noerr_block91
+  br label %noerr_block97
+
+guard_block96:                                    ; preds = %assign_optional94
+  br label %voiderr105
+
+noerr_block97:                                    ; preds = %after_check95
+  %43 = call i64 @std.io.File.flush(ptr %37)
+  %not_err99 = icmp eq i64 %43, 0
+  %44 = call i1 @llvm.expect.i1(i1 %not_err99, i1 true)
+  br i1 %44, label %after_check101, label %assign_optional100
+
+assign_optional100:                               ; preds = %noerr_block97
+  store i64 %43, ptr %error_var98, align 8
+  br label %guard_block102
+
+after_check101:                                   ; preds = %noerr_block97
+  br label %noerr_block103
+
+guard_block102:                                   ; preds = %assign_optional100
+  br label %voiderr105
+
+noerr_block103:                                   ; preds = %after_check101
+  %45 = load i64, ptr %len83, align 8
+  %add104 = add i64 %45, 1
+  br label %voiderr105
+
+voiderr105:                                       ; preds = %noerr_block103, %guard_block102, %guard_block96, %guard_block90
+  %46 = call ptr @std.io.stdout()
+  %47 = call i64 @std.io.File.write(ptr %retparam109, ptr %46, ptr @.str.14, i64 4)
+  %not_err110 = icmp eq i64 %47, 0
+  %48 = call i1 @llvm.expect.i1(i1 %not_err110, i1 true)
+  br i1 %48, label %after_check112, label %assign_optional111
+
+assign_optional111:                               ; preds = %voiderr105
+  store i64 %47, ptr %error_var107, align 8
+  br label %guard_block113
+
+after_check112:                                   ; preds = %voiderr105
+  br label %noerr_block114
+
+guard_block113:                                   ; preds = %assign_optional111
+  br label %voiderr128
+
+noerr_block114:                                   ; preds = %after_check112
+  %49 = load i64, ptr %retparam109, align 8
+  store i64 %49, ptr %len106, align 8
+  %50 = call i64 @std.io.File.write_byte(ptr %46, i8 zeroext 10)
+  %not_err116 = icmp eq i64 %50, 0
+  %51 = call i1 @llvm.expect.i1(i1 %not_err116, i1 true)
+  br i1 %51, label %after_check118, label %assign_optional117
+
+assign_optional117:                               ; preds = %noerr_block114
+  store i64 %50, ptr %error_var115, align 8
+  br label %guard_block119
+
+after_check118:                                   ; preds = %noerr_block114
+  br label %noerr_block120
+
+guard_block119:                                   ; preds = %assign_optional117
+  br label %voiderr128
+
+noerr_block120:                                   ; preds = %after_check118
+  %52 = call i64 @std.io.File.flush(ptr %46)
+  %not_err122 = icmp eq i64 %52, 0
+  %53 = call i1 @llvm.expect.i1(i1 %not_err122, i1 true)
+  br i1 %53, label %after_check124, label %assign_optional123
+
+assign_optional123:                               ; preds = %noerr_block120
+  store i64 %52, ptr %error_var121, align 8
+  br label %guard_block125
+
+after_check124:                                   ; preds = %noerr_block120
+  br label %noerr_block126
+
+guard_block125:                                   ; preds = %assign_optional123
+  br label %voiderr128
+
+noerr_block126:                                   ; preds = %after_check124
+  %54 = load i64, ptr %len106, align 8
+  %add127 = add i64 %54, 1
+  br label %voiderr128
+
+voiderr128:                                       ; preds = %noerr_block126, %guard_block125, %guard_block119, %guard_block113
+  %55 = call ptr @std.io.stdout()
+  %56 = call i64 @std.io.File.write(ptr %retparam132, ptr %55, ptr @.str.15, i64 3)
+  %not_err133 = icmp eq i64 %56, 0
+  %57 = call i1 @llvm.expect.i1(i1 %not_err133, i1 true)
+  br i1 %57, label %after_check135, label %assign_optional134
+
+assign_optional134:                               ; preds = %voiderr128
+  store i64 %56, ptr %error_var130, align 8
+  br label %guard_block136
+
+after_check135:                                   ; preds = %voiderr128
+  br label %noerr_block137
+
+guard_block136:                                   ; preds = %assign_optional134
+  br label %voiderr151
+
+noerr_block137:                                   ; preds = %after_check135
+  %58 = load i64, ptr %retparam132, align 8
+  store i64 %58, ptr %len129, align 8
+  %59 = call i64 @std.io.File.write_byte(ptr %55, i8 zeroext 10)
+  %not_err139 = icmp eq i64 %59, 0
+  %60 = call i1 @llvm.expect.i1(i1 %not_err139, i1 true)
+  br i1 %60, label %after_check141, label %assign_optional140
+
+assign_optional140:                               ; preds = %noerr_block137
+  store i64 %59, ptr %error_var138, align 8
+  br label %guard_block142
+
+after_check141:                                   ; preds = %noerr_block137
+  br label %noerr_block143
+
+guard_block142:                                   ; preds = %assign_optional140
+  br label %voiderr151
+
+noerr_block143:                                   ; preds = %after_check141
+  %61 = call i64 @std.io.File.flush(ptr %55)
+  %not_err145 = icmp eq i64 %61, 0
+  %62 = call i1 @llvm.expect.i1(i1 %not_err145, i1 true)
+  br i1 %62, label %after_check147, label %assign_optional146
+
+assign_optional146:                               ; preds = %noerr_block143
+  store i64 %61, ptr %error_var144, align 8
+  br label %guard_block148
+
+after_check147:                                   ; preds = %noerr_block143
+  br label %noerr_block149
+
+guard_block148:                                   ; preds = %assign_optional146
+  br label %voiderr151
+
+noerr_block149:                                   ; preds = %after_check147
+  %63 = load i64, ptr %len129, align 8
+  %add150 = add i64 %63, 1
+  br label %voiderr151
+
+voiderr151:                                       ; preds = %noerr_block149, %guard_block148, %guard_block142, %guard_block136
+  store %"char[]" { ptr @.str.17, i64 3 }, ptr %taddr, align 8
+  %64 = insertvalue %any undef, ptr %taddr, 0
+  %65 = insertvalue %any %64, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %65, ptr %varargslots, align 16
+  %66 = call i64 @std.io.printfn(ptr %retparam152, ptr @.str.16, i64 8, ptr %varargslots, i64 1)
+  store %"char[]" { ptr @.str.19, i64 1 }, ptr %taddr156, align 8
+  %67 = insertvalue %any undef, ptr %taddr156, 0
+  %68 = insertvalue %any %67, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %68, ptr %varargslots155, align 16
+  store %"char[]" { ptr @.str.20, i64 3 }, ptr %taddr157, align 8
+  %69 = insertvalue %any undef, ptr %taddr157, 0
+  %70 = insertvalue %any %69, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots155, i64 16
+  store %any %70, ptr %ptradd, align 16
+  %71 = call i64 @std.io.printfn(ptr %retparam158, ptr @.str.18, i64 6, ptr %varargslots155, i64 2)
+  store %"char[]" { ptr @.str.22, i64 4 }, ptr %taddr162, align 8
+  %72 = insertvalue %any undef, ptr %taddr162, 0
+  %73 = insertvalue %any %72, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %73, ptr %varargslots161, align 16
+  store %"char[]" { ptr @.str.23, i64 4 }, ptr %taddr163, align 8
+  %74 = insertvalue %any undef, ptr %taddr163, 0
+  %75 = insertvalue %any %74, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd164 = getelementptr inbounds i8, ptr %varargslots161, i64 16
+  store %any %75, ptr %ptradd164, align 16
+  %76 = call i64 @std.io.printfn(ptr %retparam165, ptr @.str.21, i64 6, ptr %varargslots161, i64 2)
+  store %"char[]" zeroinitializer, ptr %taddr169, align 8
+  %77 = insertvalue %any undef, ptr %taddr169, 0
+  %78 = insertvalue %any %77, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %78, ptr %varargslots168, align 16
+  store %"char[]" { ptr @.str.25, i64 5 }, ptr %taddr170, align 8
+  %79 = insertvalue %any undef, ptr %taddr170, 0
+  %80 = insertvalue %any %79, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd171 = getelementptr inbounds i8, ptr %varargslots168, i64 16
+  store %any %80, ptr %ptradd171, align 16
+  %81 = call i64 @std.io.printfn(ptr %retparam172, ptr @.str.24, i64 6, ptr %varargslots168, i64 2)
+  store %"char[]" { ptr @.str.27, i64 1 }, ptr %taddr176, align 8
+  %82 = insertvalue %any undef, ptr %taddr176, 0
+  %83 = insertvalue %any %82, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %83, ptr %varargslots175, align 16
+  store %"char[]" { ptr @.str.28, i64 6 }, ptr %taddr177, align 8
+  %84 = insertvalue %any undef, ptr %taddr177, 0
+  %85 = insertvalue %any %84, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd178 = getelementptr inbounds i8, ptr %varargslots175, i64 16
+  store %any %85, ptr %ptradd178, align 16
+  %86 = call i64 @std.io.printfn(ptr %retparam179, ptr @.str.26, i64 6, ptr %varargslots175, i64 2)
+  store %"char[]" { ptr @.str.30, i64 3 }, ptr %taddr183, align 8
+  %87 = insertvalue %any undef, ptr %taddr183, 0
+  %88 = insertvalue %any %87, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %88, ptr %varargslots182, align 16
+  %89 = call i64 @std.io.printfn(ptr %retparam184, ptr @.str.29, i64 8, ptr %varargslots182, i64 1)
+  store %"char[]" { ptr @.str.32, i64 1 }, ptr %taddr188, align 8
+  %90 = insertvalue %any undef, ptr %taddr188, 0
+  %91 = insertvalue %any %90, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %91, ptr %varargslots187, align 16
+  store %"char[]" { ptr @.str.33, i64 4 }, ptr %taddr189, align 8
+  %92 = insertvalue %any undef, ptr %taddr189, 0
+  %93 = insertvalue %any %92, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd190 = getelementptr inbounds i8, ptr %varargslots187, i64 16
+  store %any %93, ptr %ptradd190, align 16
+  %94 = call i64 @std.io.printfn(ptr %retparam191, ptr @.str.31, i64 6, ptr %varargslots187, i64 2)
+  store %"char[]" { ptr @.str.35, i64 1 }, ptr %taddr195, align 8
+  %95 = insertvalue %any undef, ptr %taddr195, 0
+  %96 = insertvalue %any %95, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %96, ptr %varargslots194, align 16
+  store %"char[]" { ptr @.str.36, i64 5 }, ptr %taddr196, align 8
+  %97 = insertvalue %any undef, ptr %taddr196, 0
+  %98 = insertvalue %any %97, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd197 = getelementptr inbounds i8, ptr %varargslots194, i64 16
+  store %any %98, ptr %ptradd197, align 16
+  %99 = call i64 @std.io.printfn(ptr %retparam198, ptr @.str.34, i64 6, ptr %varargslots194, i64 2)
+  store %"char[]" zeroinitializer, ptr %taddr202, align 8
+  %100 = insertvalue %any undef, ptr %taddr202, 0
+  %101 = insertvalue %any %100, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %101, ptr %varargslots201, align 16
+  store %"char[]" { ptr @.str.38, i64 5 }, ptr %taddr203, align 8
+  %102 = insertvalue %any undef, ptr %taddr203, 0
+  %103 = insertvalue %any %102, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd204 = getelementptr inbounds i8, ptr %varargslots201, i64 16
+  store %any %103, ptr %ptradd204, align 16
+  %104 = call i64 @std.io.printfn(ptr %retparam205, ptr @.str.37, i64 6, ptr %varargslots201, i64 2)
+  store %"char[]" { ptr @.str.40, i64 3 }, ptr %taddr209, align 8
+  %105 = insertvalue %any undef, ptr %taddr209, 0
+  %106 = insertvalue %any %105, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %106, ptr %varargslots208, align 16
+  store %"char[]" { ptr @.str.41, i64 3 }, ptr %taddr210, align 8
+  %107 = insertvalue %any undef, ptr %taddr210, 0
+  %108 = insertvalue %any %107, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd211 = getelementptr inbounds i8, ptr %varargslots208, i64 16
+  store %any %108, ptr %ptradd211, align 16
+  %109 = call i64 @std.io.printfn(ptr %retparam212, ptr @.str.39, i64 6, ptr %varargslots208, i64 2)
+  store %"char[]" { ptr @.str.43, i64 4 }, ptr %taddr216, align 8
+  %110 = insertvalue %any undef, ptr %taddr216, 0
+  %111 = insertvalue %any %110, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %111, ptr %varargslots215, align 16
+  %112 = call i64 @std.io.printfn(ptr %retparam217, ptr @.str.42, i64 8, ptr %varargslots215, i64 1)
+  store %"char[]" { ptr @.str.45, i64 1 }, ptr %taddr221, align 8
+  %113 = insertvalue %any undef, ptr %taddr221, 0
+  %114 = insertvalue %any %113, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %114, ptr %varargslots220, align 16
+  store %"char[]" { ptr @.str.46, i64 3 }, ptr %taddr222, align 8
+  %115 = insertvalue %any undef, ptr %taddr222, 0
+  %116 = insertvalue %any %115, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd223 = getelementptr inbounds i8, ptr %varargslots220, i64 16
+  store %any %116, ptr %ptradd223, align 16
+  %117 = call i64 @std.io.printfn(ptr %retparam224, ptr @.str.44, i64 6, ptr %varargslots220, i64 2)
+  store %"char[]" { ptr @.str.48, i64 1 }, ptr %taddr228, align 8
+  %118 = insertvalue %any undef, ptr %taddr228, 0
+  %119 = insertvalue %any %118, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %119, ptr %varargslots227, align 16
+  store %"char[]" { ptr @.str.49, i64 5 }, ptr %taddr229, align 8
+  %120 = insertvalue %any undef, ptr %taddr229, 0
+  %121 = insertvalue %any %120, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd230 = getelementptr inbounds i8, ptr %varargslots227, i64 16
+  store %any %121, ptr %ptradd230, align 16
+  %122 = call i64 @std.io.printfn(ptr %retparam231, ptr @.str.47, i64 6, ptr %varargslots227, i64 2)
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define void @test.main() #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %varargslots1 = alloca [1 x %any], align 16
+  %taddr2 = alloca i64, align 8
+  %retparam3 = alloca i64, align 8
+  %varargslots4 = alloca [2 x %any], align 16
+  %taddr5 = alloca i64, align 8
+  %taddr6 = alloca i64, align 8
+  %retparam7 = alloca i64, align 8
+  %varargslots8 = alloca [2 x %any], align 16
+  %taddr9 = alloca i64, align 8
+  %taddr10 = alloca i64, align 8
+  %retparam12 = alloca i64, align 8
+  %varargslots13 = alloca [2 x %any], align 16
+  %taddr14 = alloca i64, align 8
+  %taddr15 = alloca i64, align 8
+  %retparam17 = alloca i64, align 8
+  %varargslots18 = alloca [2 x %any], align 16
+  %taddr19 = alloca i64, align 8
+  %taddr20 = alloca i64, align 8
+  %retparam22 = alloca i64, align 8
+  %varargslots23 = alloca [2 x %any], align 16
+  %taddr24 = alloca i64, align 8
+  %taddr25 = alloca i64, align 8
+  %retparam27 = alloca i64, align 8
+  %varargslots28 = alloca [2 x %any], align 16
+  %taddr29 = alloca i64, align 8
+  %taddr30 = alloca i64, align 8
+  %retparam32 = alloca i64, align 8
+  %varargslots33 = alloca [2 x %any], align 16
+  %taddr34 = alloca i64, align 8
+  %taddr35 = alloca i64, align 8
+  %retparam37 = alloca i64, align 8
+  %varargslots38 = alloca [1 x %any], align 16
+  %taddr39 = alloca i64, align 8
+  %retparam40 = alloca i64, align 8
+  %varargslots41 = alloca [2 x %any], align 16
+  %taddr42 = alloca i64, align 8
+  %taddr43 = alloca i64, align 8
+  %retparam45 = alloca i64, align 8
+  store i64 4, ptr %taddr, align 8
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.50, i64 7, ptr %varargslots, i64 1)
+  store i64 1, ptr %taddr2, align 8
+  %3 = insertvalue %any undef, ptr %taddr2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %4, ptr %varargslots1, align 16
+  %5 = call i64 @std.io.printfn(ptr %retparam3, ptr @.str.51, i64 7, ptr %varargslots1, i64 1)
+  store i64 0, ptr %taddr5, align 8
+  %6 = insertvalue %any undef, ptr %taddr5, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %7, ptr %varargslots4, align 16
+  store i64 4, ptr %taddr6, align 8
+  %8 = insertvalue %any undef, ptr %taddr6, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots4, i64 16
+  store %any %9, ptr %ptradd, align 16
+  %10 = call i64 @std.io.printfn(ptr %retparam7, ptr @.str.52, i64 8, ptr %varargslots4, i64 2)
+  store i64 2, ptr %taddr9, align 8
+  %11 = insertvalue %any undef, ptr %taddr9, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %12, ptr %varargslots8, align 16
+  store i64 2, ptr %taddr10, align 8
+  %13 = insertvalue %any undef, ptr %taddr10, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd11 = getelementptr inbounds i8, ptr %varargslots8, i64 16
+  store %any %14, ptr %ptradd11, align 16
+  %15 = call i64 @std.io.printfn(ptr %retparam12, ptr @.str.53, i64 8, ptr %varargslots8, i64 2)
+  store i64 4, ptr %taddr14, align 8
+  %16 = insertvalue %any undef, ptr %taddr14, 0
+  %17 = insertvalue %any %16, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %17, ptr %varargslots13, align 16
+  store i64 4, ptr %taddr15, align 8
+  %18 = insertvalue %any undef, ptr %taddr15, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd16 = getelementptr inbounds i8, ptr %varargslots13, i64 16
+  store %any %19, ptr %ptradd16, align 16
+  %20 = call i64 @std.io.printfn(ptr %retparam17, ptr @.str.54, i64 8, ptr %varargslots13, i64 2)
+  store i64 4, ptr %taddr19, align 8
+  %21 = insertvalue %any undef, ptr %taddr19, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %22, ptr %varargslots18, align 16
+  store i64 4, ptr %taddr20, align 8
+  %23 = insertvalue %any undef, ptr %taddr20, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd21 = getelementptr inbounds i8, ptr %varargslots18, i64 16
+  store %any %24, ptr %ptradd21, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam22, ptr @.str.55, i64 8, ptr %varargslots18, i64 2)
+  store i64 4, ptr %taddr24, align 8
+  %26 = insertvalue %any undef, ptr %taddr24, 0
+  %27 = insertvalue %any %26, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %27, ptr %varargslots23, align 16
+  store i64 4, ptr %taddr25, align 8
+  %28 = insertvalue %any undef, ptr %taddr25, 0
+  %29 = insertvalue %any %28, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd26 = getelementptr inbounds i8, ptr %varargslots23, i64 16
+  store %any %29, ptr %ptradd26, align 16
+  %30 = call i64 @std.io.printfn(ptr %retparam27, ptr @.str.56, i64 9, ptr %varargslots23, i64 2)
+  store i64 5, ptr %taddr29, align 8
+  %31 = insertvalue %any undef, ptr %taddr29, 0
+  %32 = insertvalue %any %31, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %32, ptr %varargslots28, align 16
+  store i64 1, ptr %taddr30, align 8
+  %33 = insertvalue %any undef, ptr %taddr30, 0
+  %34 = insertvalue %any %33, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd31 = getelementptr inbounds i8, ptr %varargslots28, i64 16
+  store %any %34, ptr %ptradd31, align 16
+  %35 = call i64 @std.io.printfn(ptr %retparam32, ptr @.str.57, i64 9, ptr %varargslots28, i64 2)
+  store i64 8, ptr %taddr34, align 8
+  %36 = insertvalue %any undef, ptr %taddr34, 0
+  %37 = insertvalue %any %36, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %37, ptr %varargslots33, align 16
+  store i64 4, ptr %taddr35, align 8
+  %38 = insertvalue %any undef, ptr %taddr35, 0
+  %39 = insertvalue %any %38, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd36 = getelementptr inbounds i8, ptr %varargslots33, i64 16
+  store %any %39, ptr %ptradd36, align 16
+  %40 = call i64 @std.io.printfn(ptr %retparam37, ptr @.str.58, i64 10, ptr %varargslots33, i64 2)
+  store i64 4, ptr %taddr39, align 8
+  %41 = insertvalue %any undef, ptr %taddr39, 0
+  %42 = insertvalue %any %41, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %42, ptr %varargslots38, align 16
+  %43 = call i64 @std.io.printfn(ptr %retparam40, ptr @.str.59, i64 7, ptr %varargslots38, i64 1)
+  store i64 8, ptr %taddr42, align 8
+  %44 = insertvalue %any undef, ptr %taddr42, 0
+  %45 = insertvalue %any %44, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %45, ptr %varargslots41, align 16
+  store i64 4, ptr %taddr43, align 8
+  %46 = insertvalue %any undef, ptr %taddr43, 0
+  %47 = insertvalue %any %46, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  %ptradd44 = getelementptr inbounds i8, ptr %varargslots41, i64 16
+  store %any %47, ptr %ptradd44, align 16
+  %48 = call i64 @std.io.printfn(ptr %retparam45, ptr @.str.60, i64 10, ptr %varargslots41, i64 2)
+  call void @test.test(i32 10)
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
+
+declare extern_weak ptr @std.io.stdout() #0
+
+declare extern_weak i64 @std.io.File.write(ptr, ptr, ptr, i64) #0
+
+declare extern_weak i64 @std.io.File.write_byte(ptr, i8 zeroext) #0
+
+declare extern_weak i64 @std.io.File.flush(ptr) #0
+
+declare extern_weak i64 @std.io.printfn(ptr, ptr, i64, ptr, i64) #0
diff --git a/test/test_suite7/compile_time/ct_ordered_error.c3t b/test/test_suite7/compile_time/ct_ordered_error.c3t
new file mode 100644
index 000000000..202dc37ab
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_ordered_error.c3t
@@ -0,0 +1,4 @@
+module test;
+const ABC = 1;
+const A @if(ABC == 1) = 100 ;
+int b @if(A == 100); // #error: This @if expression is dependent on
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_string_functions.c3t b/test/test_suite7/compile_time/ct_string_functions.c3t
new file mode 100644
index 000000000..45f9ebb1e
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_string_functions.c3t
@@ -0,0 +1,11 @@
+import std;
+
+fn int main()
+{
+	$assert(@str_upper("Hello World") == "HELLO WORLD");
+	$assert(@str_lower("Hello World") == "hello world");
+	$assert(@str_find("Hello World", "o") == 4);
+	$assert(@str_find("Hello World", "w") == -1);
+	$assert(@str_hash("Hello C3") == 487972447);
+	return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_subscript_inc.c3t b/test/test_suite7/compile_time/ct_subscript_inc.c3t
new file mode 100644
index 000000000..df8114c2f
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_subscript_inc.c3t
@@ -0,0 +1,71 @@
+// #target: macos-x64
+module test;
+import std;
+
+fn void main()
+{
+	String $c = "Abcd";
+	io::printn($c);
+	io::printfn("%c", $c[1]++);
+	io::printfn("%c", $c[2]++);
+	io::printfn("%c", $c[3]--);
+	io::printn($c);
+
+	String $d = "Abcd";
+	io::printn($d);
+	io::printfn("%c", ++$d[1]);
+	io::printfn("%c", ++$d[2]);
+	io::printfn("%c", --$d[3]);
+	io::printn($d);
+
+	var $e = { 1, 2, 3 };
+	io::printn((int[?])$e);
+   	io::printn($e[1]++);
+	io::printn((int[?])$e);
+
+	int[?] $f = { 1, 2, 3 };
+   	io::printn($f);
+   	io::printn($f[1]++);
+   	io::printn($f);
+
+	int[?] $g = { 1, 2, 3 };
+   	io::printn($g);
+   	io::printn(--$g[1]);
+   	io::printn(--$g[0]);
+   	io::printn($g);
+
+}
+
+/* #expect: test.ll
+
+
+@.str = private unnamed_addr constant [5 x i8] c"Abcd\00", align 1
+@.str.1 = private unnamed_addr constant [3 x i8] c"%c\00", align 1
+@"$ct.char" = linkonce global %.introspect { i8 3, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.str.2 = private unnamed_addr constant [3 x i8] c"%c\00", align 1
+@.str.3 = private unnamed_addr constant [3 x i8] c"%c\00", align 1
+@.str.4 = private unnamed_addr constant [5 x i8] c"Acdc\00", align 1
+@.str.5 = private unnamed_addr constant [5 x i8] c"Abcd\00", align 1
+@.str.6 = private unnamed_addr constant [3 x i8] c"%c\00", align 1
+@.str.7 = private unnamed_addr constant [3 x i8] c"%c\00", align 1
+@.str.8 = private unnamed_addr constant [3 x i8] c"%c\00", align 1
+@.str.9 = private unnamed_addr constant [5 x i8] c"Acdc\00", align 1
+@.__const = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@"$ct.std.io.File" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.str.10 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@"$ct.a3$int" = linkonce global %.introspect { i8 15, i64 0, ptr null, i64 12, i64 ptrtoint (ptr @"$ct.int" to i64), i64 3, [0 x i64] zeroinitializer }, align 8
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.str.11 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.__const.12 = private unnamed_addr constant [3 x i32] [i32 1, i32 3, i32 3], align 4
+@.str.13 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.__const.14 = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@.str.15 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.16 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.__const.17 = private unnamed_addr constant [3 x i32] [i32 1, i32 3, i32 3], align 4
+@.str.18 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.__const.19 = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@.str.20 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.21 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.22 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.__const.23 = private unnamed_addr constant [3 x i32] [i32 0, i32 1, i32 3], align 4
+@.str.24 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
diff --git a/test/test_suite7/compile_time/ct_subscript_op.c3t b/test/test_suite7/compile_time/ct_subscript_op.c3t
new file mode 100644
index 000000000..f636a6e11
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_subscript_op.c3t
@@ -0,0 +1,27 @@
+// #target: macos-x64
+module test;
+fn void main()
+{
+	var $x2 = { 1, 2, 4  };
+	int y = $x2[2] += 1;
+	int[3] gh = $x2;
+	$x2[1] <<= 4;
+	int[3] kl = $x2;
+}
+
+/* #expect: test.ll
+
+@.__const = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 5], align 4
+@.__const.1 = private unnamed_addr constant [3 x i32] [i32 1, i32 32, i32 5], align 4
+
+; Function Attrs: nounwind uwtable
+define void @test.main() #0 {
+entry:
+  %y = alloca i32, align 4
+  %gh = alloca [3 x i32], align 4
+  %kl = alloca [3 x i32], align 4
+  store i32 5, ptr %y, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %gh, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %kl, ptr align 4 @.__const.1, i32 12, i1 false)
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_switch.c3t b/test/test_suite7/compile_time/ct_switch.c3t
new file mode 100644
index 000000000..7a625ffa5
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_switch.c3t
@@ -0,0 +1,65 @@
+// #target: macos-x64
+
+module test;
+
+macro getisprime($x)
+{
+    $switch ($x)
+        $case 1:
+        $case 2:
+        $case 3:
+        $case 5:
+        $case 7:
+        $case 11:
+        $case 13:
+            return "prime";
+        $case 4:
+        $case 6:
+        $case 8:
+        $case 9:
+        $case 10:
+        $case 12:
+            return "not_prime";
+        $case 17:
+        $default:
+            return "donnowifprime";
+    $endswitch
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    printf("%s\n", getisprime(3));
+    printf("%s\n", getisprime(12));
+    printf("%s\n", getisprime(4));
+    printf("%s\n", getisprime(100));
+    printf("%s\n", getisprime(17));
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.1 = private unnamed_addr constant [6 x i8] c"prime\00", align 1
+@.str.2 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.3 = private unnamed_addr constant [10 x i8] c"not_prime\00", align 1
+@.str.4 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.5 = private unnamed_addr constant [10 x i8] c"not_prime\00", align 1
+@.str.6 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.7 = private unnamed_addr constant [14 x i8] c"donnowifprime\00", align 1
+@.str.8 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.9 = private unnamed_addr constant [14 x i8] c"donnowifprime\00", align 1
+
+
+declare void @printf(ptr, ...) #0
+
+
+define void @test.main() #0 {
+entry:
+  call void (ptr, ...) @printf(ptr @.str, ptr @.str.1)
+  call void (ptr, ...) @printf(ptr @.str.2, ptr @.str.3)
+  call void (ptr, ...) @printf(ptr @.str.4, ptr @.str.5)
+  call void (ptr, ...) @printf(ptr @.str.6, ptr @.str.7)
+  call void (ptr, ...) @printf(ptr @.str.8, ptr @.str.9)
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_switch_errors.c3 b/test/test_suite7/compile_time/ct_switch_errors.c3
new file mode 100644
index 000000000..bbb85a1a7
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_switch_errors.c3
@@ -0,0 +1,36 @@
+
+fn void test()
+{
+    $switch (3)
+        $case 2:
+            return;
+        $default: // #error: $default must be last in a $switch
+        $default:
+            return;
+    $endswitch
+}
+
+fn void test1()
+{
+    $switch (1)
+        $case -1:
+            return;
+        $case -1: // #error: '-1' appears more than once
+            return;
+        $default:
+            return;
+    $endswitch
+}
+
+
+fn void test3()
+{
+    $switch (3)
+        $case 3:
+            return;
+        $case 123.0: // #error: 'int'
+            return;
+        $default:
+            return;
+    $endswitch
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_switch_more_checks.c3 b/test/test_suite7/compile_time/ct_switch_more_checks.c3
new file mode 100644
index 000000000..34eb21b95
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_switch_more_checks.c3
@@ -0,0 +1,48 @@
+module test;
+import std::io;
+
+fn void foo()
+{
+	int a;
+	$switch ($typeof(a))
+		$case int..float: // #error: $case ranges are only allowed for integers
+			io::printn("Hello");
+		$default:
+			io::printn("World");
+	$endswitch
+}
+
+fn void foo2()
+{
+	int a;
+	$switch ($typeof(a))
+		$case true..false: // #error: $case ranges are only allowed
+			io::printn("Hello");
+		$default:
+			io::printn("World");
+	$endswitch
+}
+
+fn void foo3()
+{
+	int a;
+	$switch ({ 1, 3 }) // #error: Only types, strings, enums, integers, floats and booleans
+		$case 1:
+			io::printn("Hello");
+		$default:
+			io::printn("World");
+	$endswitch
+}
+
+fn void main()
+{
+	int a;
+	$switch ("abc")
+		$case "cde":
+			io::printn("!!!");
+		$case "abc":
+			io::printn("Hello");
+		$default:
+			io::printn("World");
+	$endswitch
+}
diff --git a/test/test_suite7/compile_time/ct_switch_top_level.c3t b/test/test_suite7/compile_time/ct_switch_top_level.c3t
new file mode 100644
index 000000000..922d83d5d
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_switch_top_level.c3t
@@ -0,0 +1,52 @@
+// #target: macos-x64
+module test;
+
+extern fn void printf(char*, ...);
+
+macro tester()
+{
+    var $Type = int;
+    $switch ($Type)
+    $case int:
+        printf("Hello\n");
+        int z = 0;
+    $default:
+        int j = 213;
+    $endswitch
+
+}
+
+const BOOL_TYPEID = bool.typeid;
+int oefke @if(BOOL_TYPEID == int.typeid) = 23;
+int oeoekgokege @if(BOOL_TYPEID != int.typeid) = 343432;
+
+fn int main()
+{
+    tester();
+    tester();
+    int i = 1;
+    return 1;
+}
+
+/* #expect: test.ll
+
+source_filename = "test"
+target datalayout = "e-m:o-p270:32:32-p271:32
+target triple = "x86_64-apple
+
+@test.oeoekgokege = local_unnamed_addr global i32 343432, align 4
+@.str = private unnamed_addr constant [7 x i8] c"Hello\0A\00", align 1
+@.str.2 = private unnamed_addr constant [7 x i8] c"Hello\0A\00", align 1
+
+define i32 @main() #0 {
+entry:
+  %z = alloca i32, align 4
+  %z1 = alloca i32, align 4
+  %i = alloca i32, align 4
+  call void (ptr, ...) @printf(ptr @.str)
+  store i32 0, ptr %z, align 4
+  call void (ptr, ...) @printf(ptr @.str.2)
+  store i32 0, ptr %z1, align 4
+  store i32 1, ptr %i, align 4
+  ret i32 1
+}
diff --git a/test/test_suite7/compile_time/ct_switch_type_check.c3t b/test/test_suite7/compile_time/ct_switch_type_check.c3t
new file mode 100644
index 000000000..4fe4bf14c
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_switch_type_check.c3t
@@ -0,0 +1,46 @@
+// #target: macos-x64
+
+module test;
+
+macro get_type($Type)
+{
+    $switch ($Type.typeid)
+        $case int:
+            return "int";
+        $case double:
+            return "double";
+        $default:
+            return "any other";
+    $endswitch
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    printf("%s\n", get_type(int));
+    printf("%s\n", get_type(double));
+    printf("%s\n", get_type(bool));
+
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.1 = private unnamed_addr constant [4 x i8] c"int\00", align 1
+@.str.2 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.3 = private unnamed_addr constant [7 x i8] c"double\00", align 1
+@.str.4 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.5 = private unnamed_addr constant [10 x i8] c"any other\00", align 1
+
+
+declare void @printf(ptr, ...) #0
+
+
+define void @test.main() #0 {
+entry:
+  call void (ptr, ...) @printf(ptr @.str, ptr @.str.1)
+  call void (ptr, ...) @printf(ptr @.str.2, ptr @.str.3)
+  call void (ptr, ...) @printf(ptr @.str.4, ptr @.str.5)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_switch_type_errors.c3 b/test/test_suite7/compile_time/ct_switch_type_errors.c3
new file mode 100644
index 000000000..27a3df32d
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_switch_type_errors.c3
@@ -0,0 +1,51 @@
+
+fn void test()
+{
+    $switch (int.typeid)
+        $case int:
+            return;
+        $default: // #error: must be last in a $switch
+        $default:
+            return;
+    $endswitch
+}
+
+fn void test1()
+{
+    $switch (int.typeid)
+        $case int:
+            return;
+        $case int: // #error: 'int' appears more than once
+            return;
+        $default:
+            return;
+    $endswitch
+}
+
+def Foo = int;
+def Bar = double;
+fn void test2()
+{
+    $switch (int.typeid)
+        $case Foo:
+            return;
+        $case Bar:
+            return;
+        $case int: // #error: 'int' appears more than once
+            return;
+        $default:
+            return;
+    $endswitch
+}
+
+fn void test3()
+{
+    $switch (int.typeid)
+        $case int:
+            return;
+        $case 123: // #error: A type was expected here not 'int'
+            return;
+        $default:
+            return;
+    $endswitch
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ct_through_constant.c3t b/test/test_suite7/compile_time/ct_through_constant.c3t
new file mode 100644
index 000000000..52bce83ea
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_through_constant.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module test;
+
+const FOO = "123";
+int[FOO.len] x;
+
+fn void main()
+{
+	int z = x[0];
+}
+
+/* #expect: test.ll
+
+@test.FOO = local_unnamed_addr constant %"char[]" { ptr @.str, i64 3 }, align 8
+@test.x = local_unnamed_addr global [3 x i32] zeroinitializer, align 4
+
+define void @test.main() #0 {
+entry:
+  %z = alloca i32, align 4
+  %0 = load i32, ptr @test.x, align 4
+  store i32 %0, ptr %z, align 4
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_vaexpr_assign.c3t b/test/test_suite7/compile_time/ct_vaexpr_assign.c3t
new file mode 100644
index 000000000..670c9d109
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_vaexpr_assign.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module test;
+import std;
+macro foo(...)
+{
+	$vaexpr[0] = 2;
+}
+
+fn void main()
+{
+	int $x;
+	foo($x);
+	int y = $x;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %y = alloca i32, align 4
+  store i32 2, ptr %y, align 4
+  ret void
+}
diff --git a/test/test_suite7/compile_time/ct_value_from_access.c3t b/test/test_suite7/compile_time/ct_value_from_access.c3t
new file mode 100644
index 000000000..390363623
--- /dev/null
+++ b/test/test_suite7/compile_time/ct_value_from_access.c3t
@@ -0,0 +1,40 @@
+// #target: macos-x64
+module test;
+struct Abc
+{
+	int a;
+	int b;
+}
+
+const Abc X = { 2, 3 };
+
+const int Y = X.b;
+const int* Z = &X.b;
+
+fn void main()
+{
+	Abc x = X;
+	int y = Y;
+	int* yy = &Y;
+	int* z = Z;
+}
+
+/* #expect: test.ll
+
+@test.X = constant %Abc { i32 2, i32 3 }, align 4
+@test.Y = constant i32 3, align 4
+@test.Z = local_unnamed_addr constant ptr getelementptr inbounds (i8, ptr @test.X, i64 4), align 8
+
+define void @test.main() #0 {
+entry:
+  %x = alloca %Abc, align 4
+  %y = alloca i32, align 4
+  %yy = alloca ptr, align 8
+  %z = alloca ptr, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @test.X, i32 8, i1 false)
+  store i32 3, ptr %y, align 4
+  store ptr @test.Y, ptr %yy, align 8
+  store ptr getelementptr inbounds (i8, ptr @test.X, i64 4), ptr %z, align 8
+  ret void
+}
+
diff --git a/test/test_suite7/compile_time/cttype_reassign.c3t b/test/test_suite7/compile_time/cttype_reassign.c3t
new file mode 100644
index 000000000..b6819292d
--- /dev/null
+++ b/test/test_suite7/compile_time/cttype_reassign.c3t
@@ -0,0 +1,15 @@
+// #target: macos-x64
+module reassign;
+
+fn void test()
+{
+    var $Foo = double;
+    $Foo = int;
+    $Foo hello;
+}
+
+/* #expect: reassign.ll
+
+  %hello = alloca i32, align 4
+  store i32 0, ptr %hello, align 4
+  ret void
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/deep_stringify.c3t b/test/test_suite7/compile_time/deep_stringify.c3t
new file mode 100644
index 000000000..7cbefe811
--- /dev/null
+++ b/test/test_suite7/compile_time/deep_stringify.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+module test;
+macro @foo(#foo) => @bar(#foo);
+macro @bar(#bar)
+{
+  return "#bar contains " +++ $stringify(#bar);
+}
+
+fn void main()
+{
+  String a = @foo(something);
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [24 x i8] c"#bar contains something\00", align 1
+
+entry:
+  %a = alloca %"char[]", align 8
+  store %"char[]" { ptr @.str, i64 23 }, ptr %a, align 8
+  ret void
+}
diff --git a/test/test_suite7/compile_time/macro_compile_time_pseudo_evaluation.c3t b/test/test_suite7/compile_time/macro_compile_time_pseudo_evaluation.c3t
new file mode 100644
index 000000000..718507204
--- /dev/null
+++ b/test/test_suite7/compile_time/macro_compile_time_pseudo_evaluation.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+module test;
+import std;
+macro foo(int a)
+{
+	int h = a;
+	return a;
+}
+
+$typeof(baz(2)) y;
+const ABC = $sizeof(baz(2));
+
+macro baz(int x) => foo(x);
+
+fn void main()
+{
+	int x = ABC;
+	int a = baz(3);
+}
+
+/* #expect: test.ll
+
+
+@test.y = local_unnamed_addr global i32 0, align 4
+@test.ABC = local_unnamed_addr constant i64 4, align 8
+
+entry:
+  %x = alloca i32, align 4
+  %a = alloca i32, align 4
+  %h = alloca i32, align 4
+  store i32 4, ptr %x, align 4
+  store i32 3, ptr %h, align 4
+  store i32 3, ptr %a, align 4
+  ret void
+}
diff --git a/test/test_suite7/compile_time/mod_ct.c3t b/test/test_suite7/compile_time/mod_ct.c3t
new file mode 100644
index 000000000..3e7212419
--- /dev/null
+++ b/test/test_suite7/compile_time/mod_ct.c3t
@@ -0,0 +1,17 @@
+// #target: macos-x64
+module test;
+fn int main()
+{
+	double a = 4.5 % 5;
+	double b = -4.5 % 5;
+	int ai = 4 % 5;
+	int bi = -4 % 5;
+    return 0;
+}
+
+/* #expect: test.ll
+
+store double 4.500000e+00, ptr %a, align 8
+store double -4.500000e+00, ptr %b, align 8
+store i32 4, ptr %ai, align 4
+store i32 -4, ptr %bi, align 4
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/mod_in_other_scope.c3 b/test/test_suite7/compile_time/mod_in_other_scope.c3
new file mode 100644
index 000000000..a029de6b2
--- /dev/null
+++ b/test/test_suite7/compile_time/mod_in_other_scope.c3
@@ -0,0 +1,23 @@
+module test;
+
+macro void @foo(#a)
+{
+	#a;
+}
+
+macro void @bar(#a)
+{
+	$typeof(#a) x;
+}
+fn int main()
+{
+	int $i;
+	var $Type;
+	@foo($Type = int); // #error: only be modified
+	@foo($i = 2); // #error: only be modified
+	@foo($i += 1); // #error: only be modified
+	@bar($Type = int); // #error: only be modified
+	@bar($i = 2); // #error: only be modified
+	@bar($i += 1); // #error: only be modified
+	return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/more_untyped_conversions.c3t b/test/test_suite7/compile_time/more_untyped_conversions.c3t
new file mode 100644
index 000000000..41c4cf772
--- /dev/null
+++ b/test/test_suite7/compile_time/more_untyped_conversions.c3t
@@ -0,0 +1,47 @@
+// #target: macos-x64
+module test;
+
+struct Foo { int a; struct { int b; int c; }}
+fn int main()
+{
+	var $z = { { 1, 2 }, {  }};
+	int[2][] z = $z;
+	int[2][2] z_slice = $z;
+	var $c = { 1, { 3, 4 }};
+	var $d = { 1, 2 };
+	Foo f = $c;
+	int[?] y = $d;
+	return 0;
+}
+
+/* #expect: test.ll
+
+@.__const = private unnamed_addr constant %Foo { i32 1, %.anon { i32 3, i32 4 } }, align 4
+@.__const.2 = private unnamed_addr constant [2 x i32] [i32 1, i32 2], align 4
+
+entry:
+  %z = alloca %"int[2][]", align 8
+  %literal = alloca [2 x [2 x i32]], align 16
+  %z_slice = alloca [2 x [2 x i32]], align 16
+  %f = alloca %Foo, align 4
+  %y = alloca [2 x i32], align 4
+  store i32 1, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store i32 2, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %ptradd1, i64 4
+  store i32 0, ptr %ptradd2, align 4
+  %0 = insertvalue %"int[2][]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[2][]" %0, i64 2, 1
+  store %"int[2][]" %1, ptr %z, align 8
+  store i32 1, ptr %z_slice, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %z_slice, i64 4
+  store i32 2, ptr %ptradd3, align 4
+  %ptradd4 = getelementptr inbounds i8, ptr %z_slice, i64 8
+  store i32 0, ptr %ptradd4, align 4
+  %ptradd5 = getelementptr inbounds i8, ptr %ptradd4, i64 4
+  store i32 0, ptr %ptradd5, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %f, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const.2, i32 8, i1 false)
+  ret i32 0
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/not_cost.c3 b/test/test_suite7/compile_time/not_cost.c3
new file mode 100644
index 000000000..8b6c5c192
--- /dev/null
+++ b/test/test_suite7/compile_time/not_cost.c3
@@ -0,0 +1,10 @@
+macro foo($a) @const
+{
+	int a = $a;
+	return $a;
+}
+
+fn void test()
+{
+	foo(123); // #error: failed to fold to a constant value
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/not_yet_initialized.c3 b/test/test_suite7/compile_time/not_yet_initialized.c3
new file mode 100644
index 000000000..2fbe0b136
--- /dev/null
+++ b/test/test_suite7/compile_time/not_yet_initialized.c3
@@ -0,0 +1,17 @@
+macro foo($Foo)
+{
+    $Foo a;
+    return a;
+}
+
+fn void test1()
+{
+    var $Bar;
+    foo($Bar); // #error: You need to assign a type to
+}
+
+fn void test2()
+{
+    var $Bar;
+    $Bar z; // #error: You need to assign a type to
+}
diff --git a/test/test_suite7/compile_time/stringify.c3t b/test/test_suite7/compile_time/stringify.c3t
new file mode 100644
index 000000000..12432da13
--- /dev/null
+++ b/test/test_suite7/compile_time/stringify.c3t
@@ -0,0 +1,109 @@
+// #target: macos-x64
+module test;
+import libc;
+import std::io;
+
+macro @timeit(#call)
+{
+    long t = (long)libc::clock();
+    var $Type = $typeof(#call);
+    var $is_void = $Type.typeid == void.typeid;
+	$if $is_void:
+        #call;
+	$else
+        $Type result = #call;
+	$endif
+    long diff = (long)libc::clock() - t;
+    libc::printf("'%s' took %lld us\n", $stringify(#call), diff);
+	$if !$is_void:
+        return result;
+	$endif
+}
+
+fn void test()
+{
+    for (int i = 0; i < 1000; i++) libc::printf("%d\n", i);
+}
+
+fn void main()
+{
+    @timeit(test());
+    int a = 100;
+    int x = @timeit(1 + 3 + a);
+    libc::printf("Result was %d\n", x);
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@.str.1 = private unnamed_addr constant [19 x i8] c"'%s' took %lld us\0A\00", align 1
+@.str.2 = private unnamed_addr constant [7 x i8] c"test()\00", align 1
+@.str.3 = private unnamed_addr constant [19 x i8] c"'%s' took %lld us\0A\00", align 1
+@.str.4 = private unnamed_addr constant [10 x i8] c"1 + 3 + a\00", align 1
+@.str.5 = private unnamed_addr constant [15 x i8] c"Result was %d\0A\00", align 1
+
+define void @test.test() #0 {
+entry:
+  %i = alloca i32, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %0 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %0, 1000
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i32, ptr %i, align 4
+  %2 = call i32 (ptr, ...) @printf(ptr @.str, i32 %1)
+  %3 = load i32, ptr %i, align 4
+  %add = add i32 %3, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
+
+define void @test.main() #0 {
+entry:
+  %t = alloca i64, align 8
+  %diff = alloca i64, align 8
+  %a = alloca i32, align 4
+  %x = alloca i32, align 4
+  %t1 = alloca i64, align 8
+  %result = alloca i32, align 4
+  %diff2 = alloca i64, align 8
+  %0 = call i64 @clock()
+  store i64 %0, ptr %t, align 8
+  call void @test.test()
+  %1 = call i64 @clock()
+  %2 = load i64, ptr %t, align 8
+  %sub = sub i64 %1, %2
+  store i64 %sub, ptr %diff, align 8
+  %3 = load i64, ptr %diff, align 8
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.1, ptr @.str.2, i64 %3)
+  store i32 100, ptr %a, align 4
+  %5 = call i64 @clock()
+  store i64 %5, ptr %t1, align 8
+  %6 = load i32, ptr %a, align 4
+  %add = add i32 4, %6
+  store i32 %add, ptr %result, align 4
+  %7 = call i64 @clock()
+  %8 = load i64, ptr %t1, align 8
+  %sub3 = sub i64 %7, %8
+  store i64 %sub3, ptr %diff2, align 8
+  %9 = load i64, ptr %diff2, align 8
+  %10 = call i32 (ptr, ...) @printf(ptr @.str.3, ptr @.str.4, i64 %9)
+  %11 = load i32, ptr %result, align 4
+  store i32 %11, ptr %x, align 4
+  %12 = load i32, ptr %x, align 4
+  %13 = call i32 (ptr, ...) @printf(ptr @.str.5, i32 %12)
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/compile_time/stringify2.c3t b/test/test_suite7/compile_time/stringify2.c3t
new file mode 100644
index 000000000..f4d2db3ab
--- /dev/null
+++ b/test/test_suite7/compile_time/stringify2.c3t
@@ -0,0 +1,20 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn void main()
+{
+    var $s1 = $stringify(1 + 2);
+    char[?] s2 = $stringify($s1);
+    char[] s3 = $s1;
+
+    io::printfn("$s1 == %s", $s1);
+    io::printfn("s2 == %s", &s2);
+    io::printfn("s3 == %s", s3);
+}
+
+/* #expect: test.ll
+
+c"$s1\00", align 1
+c"1 + 2\00", align 1
+c"1 + 2\00", align 1
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/ternary_folding.c3t b/test/test_suite7/compile_time/ternary_folding.c3t
new file mode 100644
index 000000000..b53487ddb
--- /dev/null
+++ b/test/test_suite7/compile_time/ternary_folding.c3t
@@ -0,0 +1,25 @@
+// #target: macos-x64
+
+int foo = 2.2 ? 1 : 2;
+double bar = false ? 1.0 : 2;
+bool baz = 1 ? false : true;
+
+fn void test()
+{
+    int x = 1 ? 0 : test2();
+}
+
+fn int test2() { return 3; }
+
+/* #expect: ternary_folding.ll
+
+@ternary_folding.foo = local_unnamed_addr global i32 1, align 4
+@ternary_folding.bar = local_unnamed_addr global double 2.000000e+00, align 8
+@ternary_folding.baz = local_unnamed_addr global i8 0, align 1
+
+define void @ternary_folding.test() #0 {
+entry:
+  %x = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/typed_ct_vars.c3t b/test/test_suite7/compile_time/typed_ct_vars.c3t
new file mode 100644
index 000000000..dcfb36bac
--- /dev/null
+++ b/test/test_suite7/compile_time/typed_ct_vars.c3t
@@ -0,0 +1,28 @@
+// #target: macos-x64
+module test;
+
+struct Foo
+{
+	int x, y;
+}
+
+fn void test()
+{
+	Foo $z = { 1, 2 };
+	Foo $y;
+	Foo y = $z;
+	Foo z = $y;
+}
+
+/* #expect: test.ll
+
+define void @test.test() #0 {
+entry:
+  %y = alloca %Foo, align 4
+  %z = alloca %Foo, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const, i32 8, i1 false)
+  store i32 0, ptr %z, align 4
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 4
+  store i32 0, ptr %ptradd, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/typefrom.c3t b/test/test_suite7/compile_time/typefrom.c3t
new file mode 100644
index 000000000..8955f105e
--- /dev/null
+++ b/test/test_suite7/compile_time/typefrom.c3t
@@ -0,0 +1,15 @@
+// #target: macos-x64
+
+module test;
+
+
+fn int main()
+{
+	var $foo = double.typeid;
+	$typefrom($foo) a = 123.0;
+	return (int)a;
+}
+
+/* #expect: test.ll
+
+  %a = alloca double, align 8
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/typefrom_errors.c3t b/test/test_suite7/compile_time/typefrom_errors.c3t
new file mode 100644
index 000000000..37cb68d96
--- /dev/null
+++ b/test/test_suite7/compile_time/typefrom_errors.c3t
@@ -0,0 +1,13 @@
+
+fn void test()
+{
+	typeid x;
+	$typefrom(2 > 1 ? int.typeid : double.typeid) xf;
+	$typefrom(x) a; // #error: Expected a constant
+}
+
+fn void test2()
+{
+	var $x = 1;
+	$typefrom($x) a; // #error: Expected a constant
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/typeof_example.c3t b/test/test_suite7/compile_time/typeof_example.c3t
new file mode 100644
index 000000000..83a555113
--- /dev/null
+++ b/test/test_suite7/compile_time/typeof_example.c3t
@@ -0,0 +1,52 @@
+extern fn void printf(char *, ...);
+
+macro bitcast($Target, value)
+{
+    $typeof(value) temp = value;
+    $Target* result = ($Target*)(&temp);
+    return *result;
+}
+
+fn void main()
+{
+    float f = 100;
+    int i = bitcast(int, f);
+    float f2 = bitcast(float, i);
+    printf("Bitcast %f to %d to %f", f, i, f2);
+}
+
+/* #expect: typeof_example.ll
+
+  %f = alloca float, align 4
+  %i = alloca i32, align 4
+  %value = alloca float, align 4
+  %temp = alloca float, align 4
+  %result = alloca ptr, align 8
+  %f2 = alloca float, align 4
+  %value1 = alloca i32, align 4
+  %temp2 = alloca i32, align 4
+  %result3 = alloca ptr, align 8
+  store float 1.000000e+02, ptr %f, align 4
+  %0 = load float, ptr %f, align 4
+  store float %0, ptr %value, align 4
+  %1 = load float, ptr %value, align 4
+  store float %1, ptr %temp, align 4
+  store ptr %temp, ptr %result, align 8
+  %2 = load ptr, ptr %result, align 8
+  %3 = load i32, ptr %2, align 4
+  store i32 %3, ptr %i, align 4
+  %4 = load i32, ptr %i, align 4
+  store i32 %4, ptr %value1, align 4
+  %5 = load i32, ptr %value1, align 4
+  store i32 %5, ptr %temp2, align 4
+  store ptr %temp2, ptr %result3, align 8
+  %6 = load ptr, ptr %result3, align 8
+  %7 = load float, ptr %6, align 4
+  store float %7, ptr %f2, align 4
+  %8 = load float, ptr %f, align 4
+  %fpfpext = fpext float %8 to double
+  %9 = load float, ptr %f2, align 4
+  %fpfpext4 = fpext float %9 to double
+  %10 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str, double %fpfpext, i32 %10, double %fpfpext4)
+  ret void
\ No newline at end of file
diff --git a/test/test_suite7/compile_time/typeof_from_literal.c3 b/test/test_suite7/compile_time/typeof_from_literal.c3
new file mode 100644
index 000000000..e5deaa514
--- /dev/null
+++ b/test/test_suite7/compile_time/typeof_from_literal.c3
@@ -0,0 +1,14 @@
+module foo;
+
+fn void a()
+{
+    $typeof(9146744073709551615i64) ef;
+    int fffx = ef; // #error: 'long'
+}
+
+fn void b()
+{
+    $typeof(9223372036854775809u64) ef;
+    int fffx = ef; // #error: 'ulong'
+}
+
diff --git a/test/test_suite7/compile_time/untyped_conversions.c3t b/test/test_suite7/compile_time/untyped_conversions.c3t
new file mode 100644
index 000000000..050787316
--- /dev/null
+++ b/test/test_suite7/compile_time/untyped_conversions.c3t
@@ -0,0 +1,133 @@
+// #target: macos-x64
+module test;
+import std::io;
+struct Foo
+{
+	int a; int b;
+}
+fn void test(int[2] a, int[] b, int[<2>] c)
+{
+	io::printfn("%s %s %s", a, b, c);
+}
+fn void main()
+{
+	var $x = { { 1, 2 } };
+	Foo[1] abc = (Foo[1])$x;
+	Foo defg = (Foo)$x[0];
+	int[2][1] y = (int[2][1])$x;
+	double[2][1] y2 = $x;
+	io::printfn("%s %s {%s, %s}", y, y2, defg.a, defg.b);
+	test({ 1, 2 }, { 3, 4}, { 5, 6 });
+	var $a = { 2, 7 };
+	test($a, $a, $a);
+}
+
+/* #expect: test.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%Foo = type { i32, i32 }
+%"int[]" = type { ptr, i64 }
+%any = type { ptr, i64 }
+
+@"$ct.test.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [9 x i8] c"%s %s %s\00", align 1
+@"$ct.a2$int" = linkonce global %.introspect { i8 15, i64 0, ptr null, i64 8, i64 ptrtoint (ptr @"$ct.int" to i64), i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.sa$int" = linkonce global %.introspect { i8 16, i64 0, ptr null, i64 16, i64 ptrtoint (ptr @"$ct.int" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.v2$int" = linkonce global %.introspect { i8 17, i64 0, ptr null, i64 8, i64 ptrtoint (ptr @"$ct.int" to i64), i64 2, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant [1 x %Foo] [%Foo { i32 1, i32 2 }], align 4
+@.__const.1 = private unnamed_addr constant %Foo { i32 1, i32 2 }, align 4
+@.__const.2 = private unnamed_addr constant [1 x [2 x i32]] [[2 x i32] [i32 1, i32 2]], align 4
+@.__const.3 = private unnamed_addr constant [1 x [2 x double]] [[2 x double] [double 1.000000e+00, double 2.000000e+00]], align 16
+@.str.4 = private unnamed_addr constant [15 x i8] c"%s %s {%s, %s}\00", align 1
+@"$ct.a1$a2$int" = linkonce global %.introspect { i8 15, i64 0, ptr null, i64 8, i64 ptrtoint (ptr @"$ct.a2$int" to i64), i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.a1$a2$double" = linkonce global %.introspect { i8 15, i64 0, ptr null, i64 16, i64 ptrtoint (ptr @"$ct.a2$double" to i64), i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.a2$double" = linkonce global %.introspect { i8 15, i64 0, ptr null, i64 16, i64 ptrtoint (ptr @"$ct.double" to i64), i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.double" = linkonce global %.introspect { i8 4, i64 0, ptr null, i64 8, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.__const.5 = private unnamed_addr constant [2 x i32] [i32 1, i32 2], align 4
+@.__const.6 = private unnamed_addr constant [2 x i32] [i32 3, i32 4], align 4
+@.__const.7 = private unnamed_addr constant [2 x i32] [i32 2, i32 7], align 4
+@.__const.8 = private unnamed_addr constant [2 x i32] [i32 2, i32 7], align 4
+
+; Function Attrs:
+define void @test.test(i64 %0, ptr %1, i64 %2, double %3) #0 {
+entry:
+  %a = alloca [2 x i32], align 4
+  %b = alloca %"int[]", align 8
+  %c = alloca <2 x i32>, align 8
+  %varargslots = alloca [3 x %any], align 16
+  %retparam = alloca i64, align 8
+  store i64 %0, ptr %a, align 4
+  store ptr %1, ptr %b, align 8
+  %ptradd = getelementptr inbounds i8, ptr %b, i64 8
+  store i64 %2, ptr %ptradd, align 8
+  store double %3, ptr %c, align 8
+  %4 = insertvalue %any undef, ptr %a, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.a2$int" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %6 = insertvalue %any undef, ptr %b, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  %ptradd1 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %7, ptr %ptradd1, align 16
+  %8 = insertvalue %any undef, ptr %c, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.v2$int" to i64), 1
+  %ptradd2 = getelementptr inbounds i8, ptr %varargslots, i64 32
+  store %any %9, ptr %ptradd2, align 16
+  %10 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 8, ptr %varargslots, i64 3)
+  ret void
+}
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %abc = alloca [1 x %Foo], align 4
+  %defg = alloca %Foo, align 4
+  %y = alloca [1 x [2 x i32]], align 4
+  %y2 = alloca [1 x [2 x double]], align 16
+  %varargslots = alloca [4 x %any], align 16
+  %retparam = alloca i64, align 8
+  %literal = alloca [2 x i32], align 4
+  %literal4 = alloca [2 x i32], align 4
+  %taddr = alloca <2 x i32>, align 8
+  %literal5 = alloca [2 x i32], align 4
+  %literal6 = alloca [2 x i32], align 4
+  %taddr7 = alloca <2 x i32>, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %abc, ptr align 4 @.__const, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %defg, ptr align 4 @.__const.1, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const.2, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %y2, ptr align 16 @.__const.3, i32 16, i1 false)
+  %0 = insertvalue %any undef, ptr %y, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.a1$a2$int" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = insertvalue %any undef, ptr %y2, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.a1$a2$double" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %3, ptr %ptradd, align 16
+  %4 = insertvalue %any undef, ptr %defg, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd1 = getelementptr inbounds i8, ptr %varargslots, i64 32
+  store %any %5, ptr %ptradd1, align 16
+  %ptradd2 = getelementptr inbounds i8, ptr %defg, i64 4
+  %6 = insertvalue %any undef, ptr %ptradd2, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd3 = getelementptr inbounds i8, ptr %varargslots, i64 48
+  store %any %7, ptr %ptradd3, align 16
+  %8 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.4, i64 14, ptr %varargslots, i64 4)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.5, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal4, ptr align 4 @.__const.6, i32 8, i1 false)
+  %9 = insertvalue %"int[]" undef, ptr %literal4, 0
+  %10 = insertvalue %"int[]" %9, i64 2, 1
+  %11 = load i64, ptr %literal, align 4
+  store <2 x i32> <i32 5, i32 6>, ptr %taddr, align 8
+  %12 = load double, ptr %taddr, align 8
+  call void @test.test(i64 %11, ptr %literal4, i64 2, double %12)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal5, ptr align 4 @.__const.7, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal6, ptr align 4 @.__const.8, i32 8, i1 false)
+  %13 = insertvalue %"int[]" undef, ptr %literal6, 0
+  %14 = insertvalue %"int[]" %13, i64 2, 1
+  %15 = load i64, ptr %literal5, align 4
+  store <2 x i32> <i32 2, i32 7>, ptr %taddr7, align 8
+  %16 = load double, ptr %taddr7, align 8
+  call void @test.test(i64 %15, ptr %literal6, i64 2, double %16)
+  ret void
+}
diff --git a/test/test_suite7/compile_time/untyped_with_inferred.c3 b/test/test_suite7/compile_time/untyped_with_inferred.c3
new file mode 100644
index 000000000..5c4ff88ed
--- /dev/null
+++ b/test/test_suite7/compile_time/untyped_with_inferred.c3
@@ -0,0 +1,6 @@
+
+fn void main()
+{
+	var $x = { 1, 1.0 };
+	double[?] z = $x;
+}
diff --git a/test/test_suite7/compile_time_introspection/alignof.c3t b/test/test_suite7/compile_time_introspection/alignof.c3t
new file mode 100644
index 000000000..67931e9e9
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/alignof.c3t
@@ -0,0 +1,65 @@
+// #target: macos-x64
+module foo;
+
+int[100] zfe;
+struct Bob
+{
+    Bob[] x;
+    char[100] y;
+    struct w {
+        int z;
+    }
+}
+
+union Ex
+{
+    char[8] c;
+    int[2] y;
+    double z;
+}
+
+union Br
+{
+    int y;
+    char x;
+}
+struct Ar
+{
+    long z;
+    Br[10] br;
+}
+
+union Foob
+{
+    long a;
+    char[8] c;
+}
+Ar izzy;
+
+long x = $alignof(zfe);
+short y = Bob.y.alignof;
+int z = Bob.w.z.alignof;
+int v = $alignof(v);
+int x1 = Ex.c.alignof;
+int x2 = Ex.y.alignof;
+int x3 = char[8].alignof;
+int x9 = $alignof(izzy.br[1]);
+int x10 = $alignof(izzy.br[1]);
+int x11 = $alignof(izzy.br[1]);
+int z0 = Foob.c.alignof;
+
+
+
+/* #expect: foo.ll
+
+@foo.x = local_unnamed_addr global i64 16, align 8
+@foo.y = local_unnamed_addr global i16 8, align 2
+@foo.z = local_unnamed_addr global i32 4, align 4
+@foo.v = local_unnamed_addr global i32 4, align 4
+@foo.x1 = local_unnamed_addr global i32 8, align 4
+@foo.x2 = local_unnamed_addr global i32 8, align 4
+@foo.x3 = local_unnamed_addr global i32 1, align 4
+@foo.x9 = local_unnamed_addr global i32 4, align 4
+@foo.x10 = local_unnamed_addr global i32 4, align 4
+@foo.x11 = local_unnamed_addr global i32 4, align 4
+@foo.z0 = local_unnamed_addr global i32 8, align 4
diff --git a/test/test_suite7/compile_time_introspection/defined.c3t b/test/test_suite7/compile_time_introspection/defined.c3t
new file mode 100644
index 000000000..79dbb0c6b
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/defined.c3t
@@ -0,0 +1,97 @@
+// #target: macos-x64
+
+module mymodule;
+
+extern fn void printf(char *, ...);
+
+struct Foo
+{
+    int a;
+    int ab;
+    struct bob
+    {
+        int j;
+    }
+}
+fn void main()
+{
+    int x = 0;
+    var $counter = 0;
+    $if $defined(x):
+        x++;
+        $counter++;
+    $endif
+    $if $defined(Foo.ab):
+        int y = 10;
+        $counter++;
+        x++;
+    $endif
+    $if $defined(Foo.ab.x):
+        x = 0;
+        $counter = 0;
+    $endif
+    $if $defined(Foo.bob):
+        x++;
+        $counter++;
+    $endif
+    $if $defined($eval("x")):
+        x++;
+        $counter++;
+    $endif
+    $if $defined($evaltype("Foo").$eval("ab")):
+        x++;
+        $counter++;
+    $endif
+    $if $defined($evaltype("mymodule::Foo").$eval("bob")):
+        x++;
+        $counter++;
+    $endif
+    $if $defined(y):
+        x++;
+        $counter++;
+        y = 1;
+    $endif
+    $if $defined(z):
+        $counter = 0;
+        x = 0;
+    $endif
+    int z = $counter;
+    printf("%d\n", x);
+}
+
+/* #expect: mymodule.ll
+
+define void @mymodule.main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %z = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  %0 = load i32, ptr %x, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr %x, align 4
+  store i32 10, ptr %y, align 4
+  %1 = load i32, ptr %x, align 4
+  %add1 = add i32 %1, 1
+  store i32 %add1, ptr %x, align 4
+  %2 = load i32, ptr %x, align 4
+  %add2 = add i32 %2, 1
+  store i32 %add2, ptr %x, align 4
+  %3 = load i32, ptr %x, align 4
+  %add3 = add i32 %3, 1
+  store i32 %add3, ptr %x, align 4
+  %4 = load i32, ptr %x, align 4
+  %add4 = add i32 %4, 1
+  store i32 %add4, ptr %x, align 4
+  %5 = load i32, ptr %x, align 4
+  %add5 = add i32 %5, 1
+  store i32 %add5, ptr %x, align 4
+  %6 = load i32, ptr %x, align 4
+  %add6 = add i32 %6, 1
+  store i32 %add6, ptr %x, align 4
+  store i32 1, ptr %y, align 4
+  store i32 7, ptr %z, align 4
+  %7 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %7)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/defined2.c3 b/test/test_suite7/compile_time_introspection/defined2.c3
new file mode 100644
index 000000000..36ac00559
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/defined2.c3
@@ -0,0 +1,15 @@
+fn void main()
+{
+	int[<2>] ab = { 11, 22 };
+	$assert !$defined(&1);
+	int! a;
+	$assert $defined(a!!);
+	$assert !$defined(ab!!);
+	$assert $defined(a!);
+	$assert !$defined(ab!);
+	$assert !$defined(*ab);
+	int* z = &&1;
+	$assert $defined(*z);
+	void* g;
+	$assert !$defined(*g);
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/defined_2.c3t b/test/test_suite7/compile_time_introspection/defined_2.c3t
new file mode 100644
index 000000000..fec0f75d8
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/defined_2.c3t
@@ -0,0 +1,40 @@
+// #target: macos-x64
+
+module testing;
+import std::io;
+
+fn void main()
+{
+    Bits b1;
+    Bits b2;
+    bool x = equals(b1, b2);
+}
+
+bitstruct Bits : char
+{
+    bool flag;
+}
+
+fn bool Bits.equals(a, Bits b)
+{
+    return a.flag == b.flag;
+}
+
+/* #expect: testing.ll
+
+entry:
+  %b1 = alloca i8, align 1
+  %b2 = alloca i8, align 1
+  %x = alloca i8, align 1
+  %a = alloca i8, align 1
+  %b = alloca i8, align 1
+  store i8 0, ptr %b1, align 1
+  store i8 0, ptr %b2, align 1
+  %0 = load i8, ptr %b1, align 1
+  store i8 %0, ptr %a, align 1
+  %1 = load i8, ptr %b2, align 1
+  store i8 %1, ptr %b, align 1
+  %2 = load i8, ptr %a, align 1
+  %3 = load i8, ptr %b, align 1
+  %4 = call i8 @testing.Bits.equals(i8 zeroext %2, i8 zeroext %3)
+  store i8 %4, ptr %x, align 1
diff --git a/test/test_suite7/compile_time_introspection/defined_builtin.c3t b/test/test_suite7/compile_time_introspection/defined_builtin.c3t
new file mode 100644
index 000000000..c7dc9d835
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/defined_builtin.c3t
@@ -0,0 +1,18 @@
+// #target: macos-x64
+module foo;
+fn void test()
+{
+    bool a = $defined($$sin);
+    bool b = $defined($$bas);
+}
+
+/* #expect: foo.ll
+
+define void @foo.test() #0 {
+entry:
+  %a = alloca i8, align 1
+  %b = alloca i8, align 1
+  store i8 1, ptr %a, align 1
+  store i8 0, ptr %b, align 1
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/defined_err.c3 b/test/test_suite7/compile_time_introspection/defined_err.c3
new file mode 100644
index 000000000..20b48c75f
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/defined_err.c3
@@ -0,0 +1,25 @@
+fn void test1()
+{
+    bool x = $defined(1);
+}
+
+struct Foo
+{
+    int x;
+}
+
+fn void test2()
+{
+    $assert $defined(int[1]);
+    bool x = $defined(int[y]); // #error: 'y' could not be found, did you spell it right?
+}
+
+fn void test3()
+{
+    $assert $defined(Foo[1]);
+    $assert $defined(Foo*);
+    $assert $defined(Foo[]);
+    $assert $defined(Foo[?]);
+    bool x = $defined(Foo[y]); // #error: 'y' could not be found, did you spell it right?
+}
+
diff --git a/test/test_suite7/compile_time_introspection/defined_index.c3t b/test/test_suite7/compile_time_introspection/defined_index.c3t
new file mode 100644
index 000000000..3e6a3476f
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/defined_index.c3t
@@ -0,0 +1,29 @@
+// #target: macos-x64
+module test;
+struct Abc { int x; }
+fn int* Abc.get(&self, usz index) @operator(&[]) { return &self.x; }
+
+struct Bcd { int x; }
+fn int Bcd.get(&self, usz index) @operator([]) { return 1; }
+
+fn void main()
+{
+	Abc a;
+	Bcd b;
+	int[4] c;
+	bool a1 = $defined(&a[0]);
+	bool a2 = $defined(a[0]);
+	bool b1 = $defined(&b[0]);
+	bool b2 = $defined(b[0]);
+	bool c1 = $defined(&c[0]);
+	bool c2 = $defined(c[0]);
+}
+
+/* #expect: test.ll
+
+  store i8 1, ptr %a1, align 1
+  store i8 0, ptr %a2, align 1
+  store i8 0, ptr %b1, align 1
+  store i8 1, ptr %b2, align 1
+  store i8 1, ptr %c1, align 1
+  store i8 1, ptr %c2, align 1
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/defined_subscript.c3 b/test/test_suite7/compile_time_introspection/defined_subscript.c3
new file mode 100644
index 000000000..a1ccec390
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/defined_subscript.c3
@@ -0,0 +1,7 @@
+fn void main()
+{
+	int[<2>] ab = { 11, 22 };
+	$assert !$defined(ab[3]);
+	$assert $defined(ab[1]);
+	$assert !$defined(ab[0][0]);
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/nameof.c3t b/test/test_suite7/compile_time_introspection/nameof.c3t
new file mode 100644
index 000000000..5246aa0e9
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/nameof.c3t
@@ -0,0 +1,68 @@
+// #target: macos-x64
+module mymodule;
+
+extern fn void printf(char *, ...);
+
+struct Foo { int y; }
+
+int b;
+
+fn void main()
+{
+    printf("%s\n", Foo.qnameof);
+    printf("%s\n", $evaltype("Foo").qnameof);
+    printf("%s\n", Foo.nameof);
+    printf("%s\n", $evaltype("mymodule::Foo").nameof);
+    printf("%s\n", Foo.extnameof);
+    printf("%s\n", $evaltype("Foo").extnameof);
+
+    printf("%s\n", $qnameof(b));
+    printf("%s\n", $qnameof($eval("b")));
+    printf("%s\n", $nameof(b));
+    printf("%s\n", $nameof($eval("mymodule::b")));
+    printf("%s\n", $extnameof(b));
+    printf("%s\n", $extnameof($eval("b")));
+
+    int a;
+
+    printf("%s\n", $qnameof(a));
+    printf("%s\n", $qnameof($eval("a")));
+    printf("%s\n", $nameof(a));
+    printf("%s\n", $nameof($eval("a")));
+
+}
+
+/* #expect: mymodule.ll
+
+@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.1 = private unnamed_addr constant [14 x i8] c"mymodule::Foo\00", align 1
+@.str.2 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.3 = private unnamed_addr constant [14 x i8] c"mymodule::Foo\00", align 1
+@.str.4 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.5 = private unnamed_addr constant [4 x i8] c"Foo\00", align 1
+@.str.6 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.7 = private unnamed_addr constant [4 x i8] c"Foo\00", align 1
+@.str.8 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.9 = private unnamed_addr constant [13 x i8] c"mymodule.Foo\00", align 1
+@.str.10 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.11 = private unnamed_addr constant [13 x i8] c"mymodule.Foo\00", align 1
+@.str.12 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.13 = private unnamed_addr constant [12 x i8] c"mymodule::b\00", align 1
+@.str.14 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.15 = private unnamed_addr constant [12 x i8] c"mymodule::b\00", align 1
+@.str.16 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.17 = private unnamed_addr constant [2 x i8] c"b\00", align 1
+@.str.18 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.19 = private unnamed_addr constant [2 x i8] c"b\00", align 1
+@.str.20 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.21 = private unnamed_addr constant [11 x i8] c"mymodule.b\00", align 1
+@.str.22 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.23 = private unnamed_addr constant [11 x i8] c"mymodule.b\00", align 1
+@.str.24 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.25 = private unnamed_addr constant [2 x i8] c"a\00", align 1
+@.str.26 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.27 = private unnamed_addr constant [2 x i8] c"a\00", align 1
+@.str.28 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.29 = private unnamed_addr constant [2 x i8] c"a\00", align 1
+@.str.30 = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+@.str.31 = private unnamed_addr constant [2 x i8] c"a\00", align 1
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/nameof_err.c3 b/test/test_suite7/compile_time_introspection/nameof_err.c3
new file mode 100644
index 000000000..f04049945
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/nameof_err.c3
@@ -0,0 +1,20 @@
+fn void main()
+{
+    int a;
+    $extnameof(a); // #error: 'a' does not have an external name.
+}
+fn void main2()
+{
+    int a;
+    $extnameof($eval("a")); // #error: 'a' does not have an external name.
+}
+
+fn void main3()
+{
+    $evaltype("int").extnameof; // #error: 'int' does not have a property or method 'extnameof'
+}
+
+fn void main4()
+{
+    $evaltype("foo::int").extnameof; // #error: Only valid types may be resolved with $evaltype.
+}
diff --git a/test/test_suite7/compile_time_introspection/offsetof.c3t b/test/test_suite7/compile_time_introspection/offsetof.c3t
new file mode 100644
index 000000000..920aa1805
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/offsetof.c3t
@@ -0,0 +1,50 @@
+// #target: macos-x64
+module foo;
+
+int[100] zfe;
+struct Bob
+{
+    Bob[] x;
+    char[100] y;
+    struct w {
+        int z;
+    }
+}
+
+union Ex
+{
+    char[8] c;
+    int[2] y;
+    double z;
+}
+
+struct Br
+{
+    int y;
+    char x;
+}
+struct Ar
+{
+    long z;
+    Br[10] br;
+}
+
+union Foob
+{
+    long a;
+    char[8] c;
+}
+
+
+short y = Bob.y.offsetof;
+int z = Bob.w.z.offsetof;
+int w = Bob.w.offsetof;
+int z0 = Foob.c.offsetof;
+int z03 = Foob.a.offsetof;
+
+/* #expect: foo.ll
+@foo.y = local_unnamed_addr global i16 16, align 2
+@foo.z = local_unnamed_addr global i32 116, align 4
+@foo.w = local_unnamed_addr global i32 116, align 4
+@foo.z0 = local_unnamed_addr global i32 0, align 4
+@foo.z03 = local_unnamed_addr global i32 0, align 4
diff --git a/test/test_suite7/compile_time_introspection/paramsof.c3t b/test/test_suite7/compile_time_introspection/paramsof.c3t
new file mode 100644
index 000000000..59c737e30
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/paramsof.c3t
@@ -0,0 +1,391 @@
+// #target: macos-x64
+module test;
+import std;
+fn void testme(int a, double b)
+{}
+
+fn void main()
+{
+	ReflectedParam[?] z = $typeof(testme).paramsof;
+	foreach (r : z)
+	{
+		io::printn(r);
+	}
+	$foreach ($r : $typeof(testme).paramsof)
+		io::printn($r.name);
+		io::printn($r.type.nameof);
+	$endforeach
+}
+
+/* #expect: test.ll
+
+
+; ModuleID = 'test'
+
+%ReflectedParam = type { %"char[]", i64 }
+
+@.str = private unnamed_addr constant [2 x i8] c"a\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.str.1 = private unnamed_addr constant [2 x i8] c"b\00", align 1
+@"$ct.double" = linkonce global %.introspect { i8 4, i64 0, ptr null, i64 8, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant [2 x %ReflectedParam] [%ReflectedParam { %"char[]" { ptr @.str, i64 1 }, i64 ptrtoint (ptr @"$ct.int" to i64) }, %ReflectedParam { %"char[]" { ptr @.str.1, i64 1 }, i64 ptrtoint (ptr @"$ct.double" to i64) }], align 16
+@"$ct.std.io.File" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.str.2 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@"$ct.ReflectedParam" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 24, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.str.3 = private unnamed_addr constant [2 x i8] c"a\00", align 1
+@.str.4 = private unnamed_addr constant [4 x i8] c"int\00", align 1
+@.str.5 = private unnamed_addr constant [2 x i8] c"b\00", align 1
+@.str.6 = private unnamed_addr constant [7 x i8] c"double\00", align 1
+
+define void @test.main() #0 {
+entry:
+  %z = alloca [2 x %ReflectedParam], align 16
+  %.anon = alloca i64, align 8
+  %r = alloca %ReflectedParam, align 8
+  %x = alloca %ReflectedParam, align 8
+  %x1 = alloca %ReflectedParam, align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca %ReflectedParam, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var4 = alloca i64, align 8
+  %error_var10 = alloca i64, align 8
+  %len16 = alloca i64, align 8
+  %error_var17 = alloca i64, align 8
+  %retparam19 = alloca i64, align 8
+  %error_var25 = alloca i64, align 8
+  %error_var31 = alloca i64, align 8
+  %len39 = alloca i64, align 8
+  %error_var40 = alloca i64, align 8
+  %retparam42 = alloca i64, align 8
+  %error_var48 = alloca i64, align 8
+  %error_var54 = alloca i64, align 8
+  %len62 = alloca i64, align 8
+  %error_var63 = alloca i64, align 8
+  %retparam65 = alloca i64, align 8
+  %error_var71 = alloca i64, align 8
+  %error_var77 = alloca i64, align 8
+  %len85 = alloca i64, align 8
+  %error_var86 = alloca i64, align 8
+  %retparam88 = alloca i64, align 8
+  %error_var94 = alloca i64, align 8
+  %error_var100 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %z, ptr align 16 @.__const, i32 48, i1 false)
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %voiderr, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 2, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [24 x i8], ptr %z, i64 %1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %r, ptr align 8 %ptroffset, i32 24, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x, ptr align 8 %r, i32 24, i1 false)
+  %2 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x1, ptr align 8 %x, i32 24, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x2, ptr align 8 %x1, i32 24, i1 false)
+  %3 = insertvalue %any undef, ptr %2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %5 = insertvalue %any undef, ptr %x2, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.ReflectedParam" to i64), 1
+  store %any %6, ptr %varargslots, align 16
+  %7 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %7, i64 1, 1
+  store %any %4, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %8 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str.2, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err = icmp eq i64 %8, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %9, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %loop.body
+  store i64 %8, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %loop.body
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %10 = load i64, ptr %retparam, align 8
+  store i64 %10, ptr %len, align 8
+  %11 = call i64 @std.io.File.write_byte(ptr %2, i8 zeroext 10)
+  %not_err5 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %12, label %after_check7, label %assign_optional6
+
+assign_optional6:                                 ; preds = %noerr_block
+  store i64 %11, ptr %error_var4, align 8
+  br label %guard_block8
+
+after_check7:                                     ; preds = %noerr_block
+  br label %noerr_block9
+
+guard_block8:                                     ; preds = %assign_optional6
+  br label %voiderr
+
+noerr_block9:                                     ; preds = %after_check7
+  %13 = call i64 @std.io.File.flush(ptr %2)
+  %not_err11 = icmp eq i64 %13, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %14, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %noerr_block9
+  store i64 %13, ptr %error_var10, align 8
+  br label %guard_block14
+
+after_check13:                                    ; preds = %noerr_block9
+  br label %noerr_block15
+
+guard_block14:                                    ; preds = %assign_optional12
+  br label %voiderr
+
+noerr_block15:                                    ; preds = %after_check13
+  %15 = load i64, ptr %len, align 8
+  %add = add i64 %15, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block15, %guard_block14, %guard_block8, %guard_block
+  %16 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %16, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %17 = call ptr @std.io.stdout()
+  %18 = call i64 @std.io.File.write(ptr %retparam19, ptr %17, ptr @.str.3, i64 1)
+  %not_err20 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err20, i1 true)
+  br i1 %19, label %after_check22, label %assign_optional21
+
+assign_optional21:                                ; preds = %loop.exit
+  store i64 %18, ptr %error_var17, align 8
+  br label %guard_block23
+
+after_check22:                                    ; preds = %loop.exit
+  br label %noerr_block24
+
+guard_block23:                                    ; preds = %assign_optional21
+  br label %voiderr38
+
+noerr_block24:                                    ; preds = %after_check22
+  %20 = load i64, ptr %retparam19, align 8
+  store i64 %20, ptr %len16, align 8
+  %21 = call i64 @std.io.File.write_byte(ptr %17, i8 zeroext 10)
+  %not_err26 = icmp eq i64 %21, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err26, i1 true)
+  br i1 %22, label %after_check28, label %assign_optional27
+
+assign_optional27:                                ; preds = %noerr_block24
+  store i64 %21, ptr %error_var25, align 8
+  br label %guard_block29
+
+after_check28:                                    ; preds = %noerr_block24
+  br label %noerr_block30
+
+guard_block29:                                    ; preds = %assign_optional27
+  br label %voiderr38
+
+noerr_block30:                                    ; preds = %after_check28
+  %23 = call i64 @std.io.File.flush(ptr %17)
+  %not_err32 = icmp eq i64 %23, 0
+  %24 = call i1 @llvm.expect.i1(i1 %not_err32, i1 true)
+  br i1 %24, label %after_check34, label %assign_optional33
+
+assign_optional33:                                ; preds = %noerr_block30
+  store i64 %23, ptr %error_var31, align 8
+  br label %guard_block35
+
+after_check34:                                    ; preds = %noerr_block30
+  br label %noerr_block36
+
+guard_block35:                                    ; preds = %assign_optional33
+  br label %voiderr38
+
+noerr_block36:                                    ; preds = %after_check34
+  %25 = load i64, ptr %len16, align 8
+  %add37 = add i64 %25, 1
+  br label %voiderr38
+
+voiderr38:                                        ; preds = %noerr_block36, %guard_block35, %guard_block29, %guard_block23
+  %26 = call ptr @std.io.stdout()
+  %27 = call i64 @std.io.File.write(ptr %retparam42, ptr %26, ptr @.str.4, i64 3)
+  %not_err43 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err43, i1 true)
+  br i1 %28, label %after_check45, label %assign_optional44
+
+assign_optional44:                                ; preds = %voiderr38
+  store i64 %27, ptr %error_var40, align 8
+  br label %guard_block46
+
+after_check45:                                    ; preds = %voiderr38
+  br label %noerr_block47
+
+guard_block46:                                    ; preds = %assign_optional44
+  br label %voiderr61
+
+noerr_block47:                                    ; preds = %after_check45
+  %29 = load i64, ptr %retparam42, align 8
+  store i64 %29, ptr %len39, align 8
+  %30 = call i64 @std.io.File.write_byte(ptr %26, i8 zeroext 10)
+  %not_err49 = icmp eq i64 %30, 0
+  %31 = call i1 @llvm.expect.i1(i1 %not_err49, i1 true)
+  br i1 %31, label %after_check51, label %assign_optional50
+
+assign_optional50:                                ; preds = %noerr_block47
+  store i64 %30, ptr %error_var48, align 8
+  br label %guard_block52
+
+after_check51:                                    ; preds = %noerr_block47
+  br label %noerr_block53
+
+guard_block52:                                    ; preds = %assign_optional50
+  br label %voiderr61
+
+noerr_block53:                                    ; preds = %after_check51
+  %32 = call i64 @std.io.File.flush(ptr %26)
+  %not_err55 = icmp eq i64 %32, 0
+  %33 = call i1 @llvm.expect.i1(i1 %not_err55, i1 true)
+  br i1 %33, label %after_check57, label %assign_optional56
+
+assign_optional56:                                ; preds = %noerr_block53
+  store i64 %32, ptr %error_var54, align 8
+  br label %guard_block58
+
+after_check57:                                    ; preds = %noerr_block53
+  br label %noerr_block59
+
+guard_block58:                                    ; preds = %assign_optional56
+  br label %voiderr61
+
+noerr_block59:                                    ; preds = %after_check57
+  %34 = load i64, ptr %len39, align 8
+  %add60 = add i64 %34, 1
+  br label %voiderr61
+
+voiderr61:                                        ; preds = %noerr_block59, %guard_block58, %guard_block52, %guard_block46
+  %35 = call ptr @std.io.stdout()
+  %36 = call i64 @std.io.File.write(ptr %retparam65, ptr %35, ptr @.str.5, i64 1)
+  %not_err66 = icmp eq i64 %36, 0
+  %37 = call i1 @llvm.expect.i1(i1 %not_err66, i1 true)
+  br i1 %37, label %after_check68, label %assign_optional67
+
+assign_optional67:                                ; preds = %voiderr61
+  store i64 %36, ptr %error_var63, align 8
+  br label %guard_block69
+
+after_check68:                                    ; preds = %voiderr61
+  br label %noerr_block70
+
+guard_block69:                                    ; preds = %assign_optional67
+  br label %voiderr84
+
+noerr_block70:                                    ; preds = %after_check68
+  %38 = load i64, ptr %retparam65, align 8
+  store i64 %38, ptr %len62, align 8
+  %39 = call i64 @std.io.File.write_byte(ptr %35, i8 zeroext 10)
+  %not_err72 = icmp eq i64 %39, 0
+  %40 = call i1 @llvm.expect.i1(i1 %not_err72, i1 true)
+  br i1 %40, label %after_check74, label %assign_optional73
+
+assign_optional73:                                ; preds = %noerr_block70
+  store i64 %39, ptr %error_var71, align 8
+  br label %guard_block75
+
+after_check74:                                    ; preds = %noerr_block70
+  br label %noerr_block76
+
+guard_block75:                                    ; preds = %assign_optional73
+  br label %voiderr84
+
+noerr_block76:                                    ; preds = %after_check74
+  %41 = call i64 @std.io.File.flush(ptr %35)
+  %not_err78 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err78, i1 true)
+  br i1 %42, label %after_check80, label %assign_optional79
+
+assign_optional79:                                ; preds = %noerr_block76
+  store i64 %41, ptr %error_var77, align 8
+  br label %guard_block81
+
+after_check80:                                    ; preds = %noerr_block76
+  br label %noerr_block82
+
+guard_block81:                                    ; preds = %assign_optional79
+  br label %voiderr84
+
+noerr_block82:                                    ; preds = %after_check80
+  %43 = load i64, ptr %len62, align 8
+  %add83 = add i64 %43, 1
+  br label %voiderr84
+
+voiderr84:                                        ; preds = %noerr_block82, %guard_block81, %guard_block75, %guard_block69
+  %44 = call ptr @std.io.stdout()
+  %45 = call i64 @std.io.File.write(ptr %retparam88, ptr %44, ptr @.str.6, i64 6)
+  %not_err89 = icmp eq i64 %45, 0
+  %46 = call i1 @llvm.expect.i1(i1 %not_err89, i1 true)
+  br i1 %46, label %after_check91, label %assign_optional90
+
+assign_optional90:                                ; preds = %voiderr84
+  store i64 %45, ptr %error_var86, align 8
+  br label %guard_block92
+
+after_check91:                                    ; preds = %voiderr84
+  br label %noerr_block93
+
+guard_block92:                                    ; preds = %assign_optional90
+  br label %voiderr107
+
+noerr_block93:                                    ; preds = %after_check91
+  %47 = load i64, ptr %retparam88, align 8
+  store i64 %47, ptr %len85, align 8
+  %48 = call i64 @std.io.File.write_byte(ptr %44, i8 zeroext 10)
+  %not_err95 = icmp eq i64 %48, 0
+  %49 = call i1 @llvm.expect.i1(i1 %not_err95, i1 true)
+  br i1 %49, label %after_check97, label %assign_optional96
+
+assign_optional96:                                ; preds = %noerr_block93
+  store i64 %48, ptr %error_var94, align 8
+  br label %guard_block98
+
+after_check97:                                    ; preds = %noerr_block93
+  br label %noerr_block99
+
+guard_block98:                                    ; preds = %assign_optional96
+  br label %voiderr107
+
+noerr_block99:                                    ; preds = %after_check97
+  %50 = call i64 @std.io.File.flush(ptr %44)
+  %not_err101 = icmp eq i64 %50, 0
+  %51 = call i1 @llvm.expect.i1(i1 %not_err101, i1 true)
+  br i1 %51, label %after_check103, label %assign_optional102
+
+assign_optional102:                               ; preds = %noerr_block99
+  store i64 %50, ptr %error_var100, align 8
+  br label %guard_block104
+
+after_check103:                                   ; preds = %noerr_block99
+  br label %noerr_block105
+
+guard_block104:                                   ; preds = %assign_optional102
+  br label %voiderr107
+
+noerr_block105:                                   ; preds = %after_check103
+  %52 = load i64, ptr %len85, align 8
+  %add106 = add i64 %52, 1
+  br label %voiderr107
+
+voiderr107:                                       ; preds = %noerr_block105, %guard_block104, %guard_block98, %guard_block92
+  ret void
+}
diff --git a/test/test_suite7/compile_time_introspection/parentof.c3t b/test/test_suite7/compile_time_introspection/parentof.c3t
new file mode 100644
index 000000000..659b6b266
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/parentof.c3t
@@ -0,0 +1,50 @@
+// #target: macos-x64
+module foo;
+struct Foo
+{
+	int a;
+}
+struct Bar
+{
+	inline Foo f;
+}
+fn void main()
+{
+	assert(Foo.parentof == void.typeid);
+	assert(Bar.parentof == Foo.typeid);
+	typeid x = Foo.typeid;
+	assert(x.parentof == void.typeid);
+	x = Bar.typeid;
+	assert(x.parentof == Foo.typeid);
+}
+
+/* #expect: foo.ll
+
+@"$ct.foo.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.Bar" = linkonce global %.introspect { i8 10, i64 ptrtoint (ptr @"$ct.foo.Foo" to i64), ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.void" = linkonce global %.introspect { i8 0, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %x = alloca i64, align 8
+  store i64 ptrtoint (ptr @"$ct.foo.Foo" to i64), ptr %x, align 8
+  %0 = load i64, ptr %x, align 8
+  %"introspect*" = inttoptr i64 %0 to ptr
+  %ptradd = getelementptr inbounds i8, ptr %"introspect*", i64 8
+  %typeid.parent = load i64, ptr %ptradd, align 8
+  %1 = icmp eq i64 %typeid.parent, 0
+  %2 = select i1 %1, i64 ptrtoint (ptr @"$ct.void" to i64), i64 %typeid.parent
+  %eq = icmp eq i64 %2, ptrtoint (ptr @"$ct.void" to i64)
+  call void @llvm.assume(i1 %eq)
+  store i64 ptrtoint (ptr @"$ct.foo.Bar" to i64), ptr %x, align 8
+  %3 = load i64, ptr %x, align 8
+  %"introspect*1" = inttoptr i64 %3 to ptr
+  %ptradd2 = getelementptr inbounds i8, ptr %"introspect*1", i64 8
+  %typeid.parent3 = load i64, ptr %ptradd2, align 8
+  %4 = icmp eq i64 %typeid.parent3, 0
+  %5 = select i1 %4, i64 ptrtoint (ptr @"$ct.void" to i64), i64 %typeid.parent3
+  %eq4 = icmp eq i64 %5, ptrtoint (ptr @"$ct.foo.Foo" to i64)
+  call void @llvm.assume(i1 %eq4)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/qnameof.c3t b/test/test_suite7/compile_time_introspection/qnameof.c3t
new file mode 100644
index 000000000..cf63a6bbb
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/qnameof.c3t
@@ -0,0 +1,60 @@
+// #target: macos-x64
+module qnametest;
+
+extern fn int printf(char *, ...);
+int x;
+
+struct Blob { int z; int f; }
+
+fn void main()
+{
+    int help;
+    printf("printf: %s\n", $nameof(printf));
+    printf("printfq: %s\n", $qnameof(printf));
+    printf("Blobq: %s\n", Blob.qnameof);
+    printf("Blob: %s\n", Blob.nameof);
+    printf("xq: %s\n", $qnameof(x));
+    printf("x: %s\n", $nameof(x));
+    printf("helpq: %s\n", $qnameof(help));
+    printf("mainq: %s\n", $qnameof(main));
+    printf("Blob**[3]: %s\n", Blob**[3].nameof);
+}
+
+/* #expect: qnametest.ll
+
+@"$ct.qnametest.Blob" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@qnametest.x = local_unnamed_addr global i32 0, align 4
+@.str = private unnamed_addr constant [12 x i8] c"printf: %s\0A\00", align 1
+@.str.1 = private unnamed_addr constant [7 x i8] c"printf\00", align 1
+@.str.2 = private unnamed_addr constant [13 x i8] c"printfq: %s\0A\00", align 1
+@.str.3 = private unnamed_addr constant [18 x i8] c"qnametest::printf\00", align 1
+@.str.4 = private unnamed_addr constant [11 x i8] c"Blobq: %s\0A\00", align 1
+@.str.5 = private unnamed_addr constant [16 x i8] c"qnametest::Blob\00", align 1
+@.str.6 = private unnamed_addr constant [10 x i8] c"Blob: %s\0A\00", align 1
+@.str.7 = private unnamed_addr constant [5 x i8] c"Blob\00", align 1
+@.str.8 = private unnamed_addr constant [8 x i8] c"xq: %s\0A\00", align 1
+@.str.9 = private unnamed_addr constant [13 x i8] c"qnametest::x\00", align 1
+@.str.10 = private unnamed_addr constant [7 x i8] c"x: %s\0A\00", align 1
+@.str.11 = private unnamed_addr constant [2 x i8] c"x\00", align 1
+@.str.12 = private unnamed_addr constant [11 x i8] c"helpq: %s\0A\00", align 1
+@.str.13 = private unnamed_addr constant [5 x i8] c"help\00", align 1
+@.str.14 = private unnamed_addr constant [11 x i8] c"mainq: %s\0A\00", align 1
+@.str.15 = private unnamed_addr constant [16 x i8] c"qnametest::main\00", align 1
+@.str.16 = private unnamed_addr constant [15 x i8] c"Blob**[3]: %s\0A\00", align 1
+@.str.17 = private unnamed_addr constant [10 x i8] c"Blob**[3]\00", align 1
+
+define void @qnametest.main() #0 {
+entry:
+  %help = alloca i32, align 4
+  store i32 0, ptr %help, align 4
+  %0 = call i32 (ptr, ...) @printf(ptr @.str, ptr @.str.1)
+  %1 = call i32 (ptr, ...) @printf(ptr @.str.2, ptr @.str.3)
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.4, ptr @.str.5)
+  %3 = call i32 (ptr, ...) @printf(ptr @.str.6, ptr @.str.7)
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.8, ptr @.str.9)
+  %5 = call i32 (ptr, ...) @printf(ptr @.str.10, ptr @.str.11)
+  %6 = call i32 (ptr, ...) @printf(ptr @.str.12, ptr @.str.13)
+  %7 = call i32 (ptr, ...) @printf(ptr @.str.14, ptr @.str.15)
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.16, ptr @.str.17)
+  ret void
+}
diff --git a/test/test_suite7/compile_time_introspection/recursive_tag.c3 b/test/test_suite7/compile_time_introspection/recursive_tag.c3
new file mode 100644
index 000000000..2189d74d3
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/recursive_tag.c3
@@ -0,0 +1,13 @@
+enum Test @tag("test", Test.FOO) {FOO} // #error: Recursive definition of 'Test'
+
+def @Test(Foo val) = {};
+
+enum Foo @tag("test", Foo.BAR) // #error: Recursive definition of 'Foo'
+{
+  BAR,
+  BAZ
+}
+
+fn void main() @Test(BAR)
+{
+}
diff --git a/test/test_suite7/compile_time_introspection/sizeof.c3t b/test/test_suite7/compile_time_introspection/sizeof.c3t
new file mode 100644
index 000000000..eaf721234
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/sizeof.c3t
@@ -0,0 +1,66 @@
+module foo;
+import bar;
+import bar::abc;
+
+long x = Baz.sizeof;
+short y = $evaltype("Baz").sizeof;
+int z = bar::Baz.sizeof;
+int w = bar::Baz.sizeof;
+int v = bar::abc::Foo.sizeof;
+int x1 = $sizeof(x);
+int y1 = $sizeof($eval("y"));
+int a = Baz.y.sizeof;
+int b = $evaltype("Deep").a.$eval("b").sizeof;
+int c = Deep.a.b.c.sizeof;
+int d = Deep[][100].sizeof;
+int e = $evaltype("Deep")[][100]**[100][]*.sizeof;
+int a2 = Baz.y.sizeof;
+int a3 = Baz.y.sizeof;
+int a4 = Baz.y.sizeof;
+int a5 = Baz.y.sizeof;
+
+module bar;
+
+struct Deep
+{
+    int x;
+    struct a
+    {
+        struct b
+        {
+            char[5] c;
+        }
+    }
+}
+
+struct Baz
+{
+    int x;
+    char[60] y;
+}
+
+module bar::abc;
+
+struct Foo
+{
+    char x;
+}
+
+/* #expect: foo.ll
+
+@foo.x = local_unnamed_addr global i64 64, align 8
+@foo.y = local_unnamed_addr global i16 64, align 2
+@foo.z = local_unnamed_addr global i32 64, align 4
+@foo.w = local_unnamed_addr global i32 64, align 4
+@foo.v = local_unnamed_addr global i32 1, align 4
+@foo.x1 = local_unnamed_addr global i32 8, align 4
+@foo.y1 = local_unnamed_addr global i32 2, align 4
+@foo.a = local_unnamed_addr global i32 60, align 4
+@foo.b = local_unnamed_addr global i32 5, align 4
+@foo.c = local_unnamed_addr global i32 5, align 4
+@foo.d = local_unnamed_addr global i32 1600, align 4
+@foo.e = local_unnamed_addr global i32 8, align 4
+@foo.a2 = local_unnamed_addr global i32 60, align 4
+@foo.a3 = local_unnamed_addr global i32 60, align 4
+@foo.a4 = local_unnamed_addr global i32 60, align 4
+@foo.a5 = local_unnamed_addr global i32 60, align 4
\ No newline at end of file
diff --git a/test/test_suite7/compile_time_introspection/sizeof_errors.c3 b/test/test_suite7/compile_time_introspection/sizeof_errors.c3
new file mode 100644
index 000000000..b07e18623
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/sizeof_errors.c3
@@ -0,0 +1,66 @@
+module foo;
+import bar;
+
+fn void a()
+{
+    int x = Bazy.sizeof; // #error: 'Bazy' could not be found, did you spell it right
+}
+
+fn void b()
+{
+    int x = $evaltype("Bazz").sizeof; // #error: 'Bazz' could not be found, did you spell it rig
+}
+
+
+fn void e()
+{
+    int x = bar::Baze.sizeof; // #error: 'bar::Baze' could not be found, did you spell it right
+}
+
+fn void f()
+{
+    int x = $evaltype("bar::Bazy").sizeof; // #error: 'bar::Bazy' could not be found
+}
+
+fn void g()
+{
+    int x = $evaltype("bar::").sizeof; // #error: Only valid types may be resolved with $evaltype
+}
+
+fn void k()
+{
+    int v = $evaltype("int").x.sizeof; // #error: 'x'.
+}
+
+fn void l()
+{
+    int v = $sizeof(int[].len); // #error: 'len'
+}
+
+fn void m()
+{
+    int v = $sizeof(int[4].len);
+}
+
+fn void n()
+{
+    int v = Baz.x1.sizeof; // #error: No method or inner struct/union 'Baz.x1' found.
+}
+
+
+
+module bar;
+
+struct Baz
+{
+    int x;
+    char[60] y;
+}
+
+module bar::abc;
+
+struct Foo
+{
+    char x;
+}
+
diff --git a/test/test_suite7/compile_time_introspection/tag.c3t b/test/test_suite7/compile_time_introspection/tag.c3t
new file mode 100644
index 000000000..7a0c592a1
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/tag.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+module test;
+struct Foo @tag("foo", 3)
+{
+	int a @tag("foo", "hello");
+}
+bitstruct Bar : int
+{
+	int a: 1..4 @tag("foo", "a");
+}
+fn void main()
+{
+	$if Foo.has_tagof("foo"):
+		int a = Foo.tagof("foo");
+	$endif;
+	String b = Foo.a.tagof("foo");
+	String c = Bar.a.tagof("foo");
+}
+
+/* #expect: test.ll
+
+
+@.str = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@.str.1 = private unnamed_addr constant [2 x i8] c"a\00", align 1
+
+entry:
+  %a = alloca i32, align 4
+  %b = alloca %"char[]", align 8
+  %c = alloca %"char[]", align 8
+  store i32 3, ptr %a, align 4
+  store %"char[]" { ptr @.str, i64 5 }, ptr %b, align 8
+  store %"char[]" { ptr @.str.1, i64 1 }, ptr %c, align 8
+  ret void
+}
diff --git a/test/test_suite7/compile_time_introspection/tag_1343.c3t b/test/test_suite7/compile_time_introspection/tag_1343.c3t
new file mode 100644
index 000000000..91e480f83
--- /dev/null
+++ b/test/test_suite7/compile_time_introspection/tag_1343.c3t
@@ -0,0 +1,17 @@
+struct Foo { int a; }
+struct Bar { int a; }
+fn void Bar.xyz(&self) @tag("footag", 123) {}
+macro void Foo.tags(&self, other)
+{
+    // inner to remove pointer
+    var $Type = $typefrom($typeof(other).inner);
+    var $methodcount = $Type.methodsof.len;
+    $for (var $i = 0; $i < $methodcount; $i++)
+        var $MethodType1 = $typeof($Type.$eval($Type.methodsof[$i]));
+        var $MethodType = $typeof(&$Type.$eval($Type.methodsof[$i]));
+		$MethodType a;
+		$MethodType1 b;
+        var $hasfootag = $MethodType.has_tagof("footag");
+    $endfor
+}
+fn void main() { Bar bar; Foo foo; foo.tags(&bar); }
diff --git a/test/test_suite7/concurrency/atomic_load_store.c3t b/test/test_suite7/concurrency/atomic_load_store.c3t
new file mode 100644
index 000000000..9ddfc40a2
--- /dev/null
+++ b/test/test_suite7/concurrency/atomic_load_store.c3t
@@ -0,0 +1,46 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+struct Ghh
+{
+	int a;
+	int b;
+	int c;
+}
+fn void main()
+{
+	int a = 111;
+	int x = @atomic_load(a);
+	int y = @atomic_load(a, RELAXED, true);
+	@atomic_store(a, 123 + x);
+	@atomic_store(a, 33 + y, RELAXED, true);
+	io::printfn("%d", a);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca i32, align 4
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  store i32 111, ptr %a, align 4
+  %0 = load atomic i32, ptr %a seq_cst, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load atomic volatile i32, ptr %a monotonic, align 4
+  store i32 %1, ptr %y, align 4
+  %2 = load i32, ptr %x, align 4
+  %add = add i32 123, %2
+  store atomic i32 %add, ptr %a seq_cst, align 4
+  %3 = load i32, ptr %y, align 4
+  %add1 = add i32 33, %3
+  store atomic volatile i32 %add1, ptr %a monotonic, align 4
+  %4 = insertvalue %any undef, ptr %a, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %6 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  ret void
+}
diff --git a/test/test_suite7/concurrency/atomic_load_store_debug.c3t b/test/test_suite7/concurrency/atomic_load_store_debug.c3t
new file mode 100644
index 000000000..8fd02ddb9
--- /dev/null
+++ b/test/test_suite7/concurrency/atomic_load_store_debug.c3t
@@ -0,0 +1,135 @@
+// #target: macos-x64
+// #debuginfo: yes
+module test;
+import std::io;
+
+struct Ghh
+{
+	int a;
+	int b;
+	int c;
+}
+fn void main()
+{
+	int a = 111;
+	int x = @atomic_load(a);
+	int y = @atomic_load(a, RELAXED, true);
+	@atomic_store(a, 123 + x);
+	@atomic_store(a, 33 + y, RELAXED, true);
+	io::printfn("%d", a);
+}
+
+/* #expect: test.ll
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%any = type { ptr, i64 }
+
+@"$ct.test.Ghh" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 12, i64 0, i64 3, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [3 x i8] c"%d\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @test.main() #0 !dbg !8 {
+entry:
+  %a = alloca i32, align 4
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %value = alloca i32, align 4
+  %value2 = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  store i32 111, ptr %a, align 4, !dbg !15
+  %0 = load atomic i32, ptr %a seq_cst, align 4, !dbg !18
+  store i32 %0, ptr %x, align 4, !dbg !18
+  %1 = load atomic volatile i32, ptr %a monotonic, align 4, !dbg !24
+  store i32 %1, ptr %y, align 4, !dbg !24
+  %2 = load i32, ptr %x, align 4, !dbg !27
+  %add = add i32 123, %2, !dbg !28
+  store i32 %add, ptr %value, align 4
+  %3 = load i32, ptr %value, align 4, !dbg !29
+  store atomic i32 %3, ptr %a seq_cst, align 4, !dbg !29
+  %4 = load i32, ptr %y, align 4, !dbg !32
+  %add1 = add i32 33, %4, !dbg !33
+  store i32 %add1, ptr %value2, align 4
+  %5 = load i32, ptr %value2, align 4, !dbg !34
+  store atomic volatile i32 %5, ptr %a monotonic, align 4, !dbg !34
+  %6 = insertvalue %any undef, ptr %a, 0, !dbg !37
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1, !dbg !37
+  store %any %7, ptr %varargslots, align 16, !dbg !37
+  %8 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1), !dbg !38
+  ret void, !dbg !38
+}
+
+define i32 @main(i32 %0, ptr %1) #0 !dbg !39 {
+entry:
+  %.anon = alloca i32, align 4
+  %.anon1 = alloca ptr, align 8
+  %.anon2 = alloca i32, align 4
+  %.anon3 = alloca ptr, align 8
+  store i32 %0, ptr %.anon, align 4
+  store ptr %1, ptr %.anon1, align 8
+  %2 = load i32, ptr %.anon, align 4
+  store i32 %2, ptr %.anon2, align 4
+  %3 = load ptr, ptr %.anon1, align 8
+  store ptr %3, ptr %.anon3, align 8
+  call void @test.main(), !dbg !48
+  ret i32 0, !dbg !51
+}
+
+declare extern_weak i64 @std.io.printfn(ptr, ptr, i64, ptr, i64) #0
+
+declare i1 @llvm.expect.i1(i1, i1)
+
+!llvm.module.flags = !{!0, !1, !2, !3, !4, !5}
+!llvm.dbg.cu = !{!6}
+
+!0 = !{i32 2, !"Dwarf Version", i32 4}
+!1 = !{i32 2, !"Debug Info Version", i32 3}
+!2 = !{i32 2, !"wchar_size", i32 4}
+!3 = !{i32 4, !"PIC Level", i32 2}
+!4 = !{i32 1, !"uwtable", i32 2}
+!5 = !{i32 2, !"frame-pointer", i32 2}
+!6 = distinct !DICompileUnit(language: DW_LANG_C11, file: !7, producer: "c3c", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false)
+!7 = !DIFile(filename: "atomic_load_store_debug.c3"
+!8 = distinct !DISubprogram(name: "main", linkageName: "test.main", scope: !7, file: !7, line: 10, type: !9, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !11)
+!9 = !DISubroutineType(types: !10)
+!10 = !{null}
+!11 = !{}
+!12 = !DILocalVariable(name: "a", scope: !8, file: !7, line: 12, type: !13, align: 4)
+!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!14 = !DILocation(line: 12, column: 6, scope: !8)
+!15 = !DILocation(line: 12, column: 10, scope: !8)
+!16 = !DILocalVariable(name: "x", scope: !8, file: !7, line: 13, type: !13, align: 4)
+!17 = !DILocation(line: 13, column: 6, scope: !8)
+!18 = !DILocation(
+!19 = distinct !DISubprogram(name: "@atomic_load",
+!20 = !DIFile(filename: "mem.c3",
+!21 = !DILocation(line: 13, column: 10, scope: !8)
+!22 = !DILocalVariable(name: "y", scope: !8, file: !7, line: 14, type: !13, align: 4)
+!23 = !DILocation(line: 14, column: 6, scope: !8)
+!24 = !DILocation(
+!25 = distinct !DISubprogram(name: "@atomic_load", linkageName: "@atomic_load", scope: !20, file: !20
+!26 = !DILocation(line: 14, column: 10, scope: !8)
+!27 = !DILocation(line: 15, column: 25, scope: !8)
+!28 = !DILocation(line: 15, column: 19, scope: !8)
+!29 = !DILocation(
+!30 = distinct !DISubprogram(name: "@atomic_store", linkageName: "@atomic_store", scope: !20, file: !20
+!31 = !DILocation(line: 15, column: 2, scope: !8)
+!32 = !DILocation(line: 16, column: 24, scope: !8)
+!33 = !DILocation(line: 16, column: 19, scope: !8)
+!34 = !DILocation(
+!35 = distinct !DISubprogram(name: "@atomic_store", linkageName: "@atomic_store", scope: !20, file: !20
+!36 = !DILocation(line: 16, column: 2, scope: !8)
+!37 = !DILocation(line: 17, column: 20, scope: !8)
+!38 = !DILocation(line: 17, column: 2, scope: !8)
+!39 = distinct !DISubprogram(name: "_$main", linkageName: "main", scope: !7, file: !7, line: 10, type: !40, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !11)
+!40 = !DISubroutineType(types: !41)
+!41 = !{!13, !13, !42}
+!42 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "char**", baseType: !43, size: 64, align: 64, dwarfAddressSpace: 0)
+!43 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "char*", baseType: !44, size: 64, align: 64, dwarfAddressSpace: 0)
+!44 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char)
+!45 = !DILocalVariable(name: ".anon", arg: 1, scope: !39, file: !7, line: 10, type: !13)
+!46 = !DILocation(line: 10, column: 9, scope: !39)
+!47 = !DILocalVariable(name: ".anon", arg: 2, scope: !39, file: !7, line: 10, type: !42)
+!48 = !DILocation(
+!49 = distinct !DISubprogram(name: "@main_to_void_main", linkageName: "@main_to_void_main", scope: !50, file: !50, line: 16, scopeLine: 16, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6)
+!50 = !DIFile(filename: "main_stub.c3", directory:
+!51 = !DILocation(
diff --git a/test/test_suite7/constants/assign_to_const.c3 b/test/test_suite7/constants/assign_to_const.c3
new file mode 100644
index 000000000..a5ee70633
--- /dev/null
+++ b/test/test_suite7/constants/assign_to_const.c3
@@ -0,0 +1,8 @@
+module test;
+import std::io;
+
+fn void main()
+{
+	const NUM = 4;
+	NUM += 1; // #error: You cannot assign to a constant
+}
\ No newline at end of file
diff --git a/test/test_suite7/constants/byte_literal_fail_base64.c3 b/test/test_suite7/constants/byte_literal_fail_base64.c3
new file mode 100644
index 000000000..01ddc731f
--- /dev/null
+++ b/test/test_suite7/constants/byte_literal_fail_base64.c3
@@ -0,0 +1 @@
+char[?] foo64 = b64"SGVsbG8g!V29ybGQ="; // #error: '!' is not a valid base64 character
\ No newline at end of file
diff --git a/test/test_suite7/constants/byte_literal_fail_base64_2.c3 b/test/test_suite7/constants/byte_literal_fail_base64_2.c3
new file mode 100644
index 000000000..862f66448
--- /dev/null
+++ b/test/test_suite7/constants/byte_literal_fail_base64_2.c3
@@ -0,0 +1 @@
+char[?] foo64 = b64"SGVsbG8gV29y=bGQ="; // #error: 'b' can't be placed after an ending '='
\ No newline at end of file
diff --git a/test/test_suite7/constants/byte_literal_fail_base64_4.c3 b/test/test_suite7/constants/byte_literal_fail_base64_4.c3
new file mode 100644
index 000000000..2295dab35
--- /dev/null
+++ b/test/test_suite7/constants/byte_literal_fail_base64_4.c3
@@ -0,0 +1 @@
+char[?] foo64 = b64"SGVsbG8gV29ybGQ==="; // #error: There cannot be more than
\ No newline at end of file
diff --git a/test/test_suite7/constants/byte_literal_fail_hex.c3 b/test/test_suite7/constants/byte_literal_fail_hex.c3
new file mode 100644
index 000000000..c2312828a
--- /dev/null
+++ b/test/test_suite7/constants/byte_literal_fail_hex.c3
@@ -0,0 +1 @@
+char[?] foo64 = x"abc def ^"; // #error: '^' isn't a valid hexadecimal digit, all digits should be a-z, A-Z and 0-9.
diff --git a/test/test_suite7/constants/byte_literals.c3t b/test/test_suite7/constants/byte_literals.c3t
new file mode 100644
index 000000000..30b8943df
--- /dev/null
+++ b/test/test_suite7/constants/byte_literals.c3t
@@ -0,0 +1,13 @@
+char[?] foob = x"a0";
+char[?] fooz = x"00aabbccddeeff";
+char[?] fooy = x'dead beef';
+char[?] foow = x"4549234d e d";
+char[?] foo64 = b64"SGVsbG8gV29ybGQ=";
+
+/* #expect: byte_literals.ll
+
+@byte_literals.foob = local_unnamed_addr global [1 x i8] c"\A0", align 1
+@byte_literals.fooz = local_unnamed_addr global [7 x i8] c"\00\AA\BB\CC\DD\EE\FF", align 1
+@byte_literals.fooy = local_unnamed_addr global [4 x i8] c"\DE\AD\BE\EF", align 1
+@byte_literals.foow = local_unnamed_addr global [5 x i8] c"EI#M\ED", align 1
+@byte_literals.foo64 = local_unnamed_addr global [11 x i8] c"Hello World", align 1
diff --git a/test/test_suite7/constants/char_literals.c3t b/test/test_suite7/constants/char_literals.c3t
new file mode 100644
index 000000000..d30028121
--- /dev/null
+++ b/test/test_suite7/constants/char_literals.c3t
@@ -0,0 +1,24 @@
+// #file: file1.c3
+module test;
+
+char a = ' ';
+char b = '\r';
+char c = '\t';
+char d = '\n';
+char e = '\0';
+char f = '\'';
+char g = '"';
+char h = '\\';
+char i = '\e';
+
+/* #expect: test.ll
+
+@test.a = local_unnamed_addr global i8 32, align 1
+@test.b = local_unnamed_addr global i8 13, align 1
+@test.c = local_unnamed_addr global i8 9, align 1
+@test.d = local_unnamed_addr global i8 10, align 1
+@test.e = local_unnamed_addr global i8 0, align 1
+@test.f = local_unnamed_addr global i8 39, align 1
+@test.g = local_unnamed_addr global i8 34, align 1
+@test.h = local_unnamed_addr global i8 92, align 1
+@test.i = local_unnamed_addr global i8 27, align 1
diff --git a/test/test_suite7/constants/const_var_copy.c3t b/test/test_suite7/constants/const_var_copy.c3t
new file mode 100644
index 000000000..f5a1305b9
--- /dev/null
+++ b/test/test_suite7/constants/const_var_copy.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module foo;
+const char[100] FOO = { [50] = 1 };
+const int[<4>] BAR = { 1, 2, 3, 4 };
+
+fn void test(int z)
+{
+    char s = FOO[z];
+    int zd = BAR[z];
+}
+
+/* #expect: foo.ll
+
+@foo.FOO = local_unnamed_addr constant { [50 x i8], i8, [49 x i8] } { [50 x i8] zeroinitializer, i8 1, [49 x i8] zeroinitializer }, align 16
+@foo.BAR = local_unnamed_addr constant <4 x i32> <i32 1, i32 2, i32 3, i32 4>, align 16
+
+; Function Attrs:
+define void @foo.test(i32 %0) #0 {
+entry:
+  %s = alloca i8, align 1
+  %zd = alloca i32, align 4
+  %sext = sext i32 %0 to i64
+  %ptradd = getelementptr inbounds i8, ptr @foo.FOO, i64 %sext
+  %1 = load i8, ptr %ptradd, align 1
+  store i8 %1, ptr %s, align 1
+  %sext1 = sext i32 %0 to i64
+  %2 = extractelement <4 x i32> <i32 1, i32 2, i32 3, i32 4>, i64 %sext1
+  store i32 %2, ptr %zd, align 4
+  ret void
+}
diff --git a/test/test_suite7/constants/constant_struct.c3 b/test/test_suite7/constants/constant_struct.c3
new file mode 100644
index 000000000..2bb0f1190
--- /dev/null
+++ b/test/test_suite7/constants/constant_struct.c3
@@ -0,0 +1,18 @@
+import std::io;
+
+struct Abc
+{
+	int a;
+}
+
+struct Bcd
+{
+	Abc x;
+}
+
+const Abc FOO = { 2 };
+
+fn void main()
+{
+	Bcd a = { FOO };
+}
diff --git a/test/test_suite7/constants/constants.c3t b/test/test_suite7/constants/constants.c3t
new file mode 100644
index 000000000..9afeb8c99
--- /dev/null
+++ b/test/test_suite7/constants/constants.c3t
@@ -0,0 +1,40 @@
+const char AA @private = (char)~(char)(0);
+const char BB = 200 ;
+const uint CC @private = ~(uint)(0);
+const uint DD @private = FOO;
+
+const FOO @private = ~(uint)(0);
+
+uint x @private = AA;
+uint z @private = CC;
+char w @private = (char)(FOO);
+ushort v @private = (ushort)(FOO);
+uint z2 @private = DD;
+
+fn void test()
+{
+    int xx = (int)FOO;
+    uint* yy = &&FOO;
+}
+
+/* #expect: constants.ll
+
+@constants.AA = internal unnamed_addr constant i8 -1, align 1
+@constants.BB = local_unnamed_addr constant i8 -56, align 1
+@constants.CC = internal unnamed_addr constant i32 -1, align 4
+@constants.DD = internal unnamed_addr constant i32 -1, align 4
+@constants.FOO = internal unnamed_addr constant i32 -1, align 4
+@constants.x = internal unnamed_addr global i32 255, align 4
+@constants.z = internal unnamed_addr global i32 -1, align 4
+@constants.w = internal unnamed_addr global i8 -1, align 1
+@constants.v = internal unnamed_addr global i16 -1, align 2
+@constants.z2 = internal unnamed_addr global i32 -1, align 4
+
+entry:
+  %xx = alloca i32, align 4
+  %yy = alloca ptr, align 8
+  %taddr = alloca i32, align 4
+  store i32 -1, ptr %xx, align 4
+  store i32 -1, ptr %taddr, align 4
+  store ptr %taddr, ptr %yy, align 8
+  ret void
\ No newline at end of file
diff --git a/test/test_suite7/constants/empty_byte_literal.c3 b/test/test_suite7/constants/empty_byte_literal.c3
new file mode 100644
index 000000000..6e558ec45
--- /dev/null
+++ b/test/test_suite7/constants/empty_byte_literal.c3
@@ -0,0 +1,8 @@
+import std;
+
+fn void main()
+{
+	char[] cd = {};
+    char[?] b = x""; // #error: must be at least 1 byte
+    io::printfn("%d", b.len);
+}
\ No newline at end of file
diff --git a/test/test_suite7/constants/float_type.c3t b/test/test_suite7/constants/float_type.c3t
new file mode 100644
index 000000000..262fd0652
--- /dev/null
+++ b/test/test_suite7/constants/float_type.c3t
@@ -0,0 +1,11 @@
+// #target: macos-x64
+module test;
+uint f0 = $typeof(1.0f).sizeof;
+uint f32 = $typeof(1.0f32).sizeof;
+uint f64 = $typeof(1.0f64).sizeof;
+
+/* #expect: test.ll
+
+@test.f0 = local_unnamed_addr global i32 4, align 4
+@test.f32 = local_unnamed_addr global i32 4, align 4
+@test.f64 = local_unnamed_addr global i32 8, align 4
\ No newline at end of file
diff --git a/test/test_suite7/constants/init_order.c3t b/test/test_suite7/constants/init_order.c3t
new file mode 100644
index 000000000..c8890c104
--- /dev/null
+++ b/test/test_suite7/constants/init_order.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module test;
+
+macro foo()
+{
+	$if $defined(A):
+        return A + 1;
+    $else
+        return 1;
+    $endif
+}
+
+const Z = foo();
+
+const A @if(!$defined(A) && Z == 1) = 222;
+
+const B = foo();
+
+/* #expect: test.ll
+
+@test.Z = local_unnamed_addr constant i32 1, align 4
+@test.B = local_unnamed_addr constant i32 223, align 4
+@test.A = local_unnamed_addr constant i32 222, align 4
\ No newline at end of file
diff --git a/test/test_suite7/contracts/constant_out.c3 b/test/test_suite7/contracts/constant_out.c3
new file mode 100644
index 000000000..43958ae35
--- /dev/null
+++ b/test/test_suite7/contracts/constant_out.c3
@@ -0,0 +1,36 @@
+module test;
+
+
+struct Abc
+{
+	int a;
+}
+
+fn void Abc.update(Abc* a, int ab)
+{
+	a.a = ab;
+}
+
+<*
+ @param [out] a
+*>
+fn void Abc.update_fail(Abc* a, int ab)
+{
+	a.a = ab;
+}
+
+const Abc X = { 2 };
+
+
+fn int main()
+{
+	const Abc Y = { 3 };
+	int* z = &X.a;
+	*z = 31;
+	X.update(1);
+	X.update_fail(2); // #error: const parameter may not
+	X.a = 32; // #error: cannot assign to a constant
+	Y.a = 34; // #error: cannot assign to a constant
+	return 0;
+}
+
diff --git a/test/test_suite7/contracts/ct_eval_of_ensure.c3 b/test/test_suite7/contracts/ct_eval_of_ensure.c3
new file mode 100644
index 000000000..7ff1956ec
--- /dev/null
+++ b/test/test_suite7/contracts/ct_eval_of_ensure.c3
@@ -0,0 +1,16 @@
+module test;
+<*
+ @ensure return > 100
+ *>
+fn int test(int baz)
+{
+	return 1; // #error: @ensure "return > 100" violated.
+}
+
+extern fn void printf(char*, ...);
+fn void main(String[] args)
+{
+   test(1022);
+   printf("Hello\n");
+}
+
diff --git a/test/test_suite7/contracts/ensure_unsigned.c3 b/test/test_suite7/contracts/ensure_unsigned.c3
new file mode 100644
index 000000000..206524e7b
--- /dev/null
+++ b/test/test_suite7/contracts/ensure_unsigned.c3
@@ -0,0 +1,10 @@
+
+// Check that 0 <= buf is ok.
+<*
+ @ensure return <= buf.len
+ *>
+fn usz foo(char[] buf) {
+  if (buf.len == 0) return 0;
+  // ... return some index into buf
+  return buf.len;
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/in_array.c3 b/test/test_suite7/contracts/in_array.c3
new file mode 100644
index 000000000..4ee8c9929
--- /dev/null
+++ b/test/test_suite7/contracts/in_array.c3
@@ -0,0 +1,12 @@
+<*
+ @param [in] x
+*>
+fn void test(int* x)
+{
+	x[1] = 123; // #error: 'in' parameters may not be assigned to
+}
+fn int main()
+{
+	test(&&int[3]{ 1, 2, 1 });
+	return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/in_out.c3 b/test/test_suite7/contracts/in_out.c3
new file mode 100644
index 000000000..03f81503d
--- /dev/null
+++ b/test/test_suite7/contracts/in_out.c3
@@ -0,0 +1,23 @@
+struct Foo { int x; }
+<* @param [out] f *>
+fn void bar(Foo* f)
+{
+  f.x = 123;
+}
+
+<* @param [in] f *>
+fn void foo(Foo* f)
+{
+  bar(f); // #error: An 'in' parameter may not be passed i
+}
+
+<* @param [in] f *>
+fn void foo2(Foo* f)
+{
+}
+
+<* @param [out] f *>
+fn void baz(Foo *f)
+{
+	foo2(f); // #error: may not be passed into a function
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/inout_in.c3 b/test/test_suite7/contracts/inout_in.c3
new file mode 100644
index 000000000..36ba05aa2
--- /dev/null
+++ b/test/test_suite7/contracts/inout_in.c3
@@ -0,0 +1,21 @@
+<*
+ @param [in] foo
+*>
+fn void test(int* foo)
+{
+	test2(foo); // #error: An 'in' parameter may not be passed into
+}
+
+<*
+ @param [out] foo
+*>
+fn void test3(int* foo)
+{
+	test2(foo); // #error: An 'out' parameter may not be passed into
+}
+<*
+ @param [inout] foo
+*>
+fn void test2(int* foo)
+{
+}
diff --git a/test/test_suite7/contracts/macro_ensure_static.c3 b/test/test_suite7/contracts/macro_ensure_static.c3
new file mode 100644
index 000000000..883f5bb36
--- /dev/null
+++ b/test/test_suite7/contracts/macro_ensure_static.c3
@@ -0,0 +1,14 @@
+module debugstuff;
+
+
+<* @ensure return > 0 *>
+macro check(int a)
+{
+	if (a > 0) return 1;
+	if (a < 0) return -1; // #error: @ensure
+	return 100;
+}
+fn void main()
+{
+	check(43);
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/out_subscript.c3 b/test/test_suite7/contracts/out_subscript.c3
new file mode 100644
index 000000000..9d9e97cbc
--- /dev/null
+++ b/test/test_suite7/contracts/out_subscript.c3
@@ -0,0 +1,12 @@
+<*
+ @param [out] z
+ @param [out] out_data
+ *>
+fn void tes2t(char* z, char[] out_data, char[] in_data) {
+	z[0] = 2;
+	z[0] += 1; // #error: 'out' parameters may not be read
+	out_data[0] = 3;
+	out_data[0] *= 1;  // #error: 'out' parameters may not be read
+	out_data[0..3]; // #error: 'out' parameters may not be read
+	out_data[0..3] = 23;
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/pure.c3 b/test/test_suite7/contracts/pure.c3
new file mode 100644
index 000000000..6c3e8e662
--- /dev/null
+++ b/test/test_suite7/contracts/pure.c3
@@ -0,0 +1,22 @@
+module inlineme;
+
+<*
+ @pure
+ *>
+fn void test()
+{
+	int x = 123;
+	int* y = &x;
+}
+
+int abc;
+fn void test2()
+{
+	abc = 1233;
+}
+
+<* @pure *>
+fn void test3()
+{
+	abc = 1233; // #error: '@pure' functions may not access globals
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/pure_calls.c3 b/test/test_suite7/contracts/pure_calls.c3
new file mode 100644
index 000000000..0430f4887
--- /dev/null
+++ b/test/test_suite7/contracts/pure_calls.c3
@@ -0,0 +1,24 @@
+module inlineme;
+
+<*
+ @pure
+ *>
+fn void test()
+{
+	int x = 123;
+	int* y = &x;
+	test3();
+	test2() @pure;
+	test2(); // #error: Only '@pure' functions may be called, you can override this with an attribute
+}
+
+int abc;
+fn void test2()
+{
+	abc = 1233;
+}
+
+<* @pure *>
+fn void test3()
+{
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/require_contract_loc.c3 b/test/test_suite7/contracts/require_contract_loc.c3
new file mode 100644
index 000000000..59283dde1
--- /dev/null
+++ b/test/test_suite7/contracts/require_contract_loc.c3
@@ -0,0 +1,6 @@
+import std::io;
+fn void main()
+{
+	int a;
+	bitorder::read(a, int); // #error: violated
+}
\ No newline at end of file
diff --git a/test/test_suite7/contracts/simple_test.c3t b/test/test_suite7/contracts/simple_test.c3t
new file mode 100644
index 000000000..88e3863b4
--- /dev/null
+++ b/test/test_suite7/contracts/simple_test.c3t
@@ -0,0 +1,90 @@
+// #target: macos-x64
+
+<*
+ @param [inout] foo `test`
+ @require baz > 100 `whatever`
+ @ensure *foo > 231
+*>
+fn void test(int *foo, int baz)
+{
+	*foo = 444;
+}
+
+<*
+ @param [inout] foo `test`
+ @require baz > 100 `whatever`
+ @ensure return < 200
+*>
+fn int test2(int *foo, int baz)
+{
+	*foo = 444;
+	return baz;
+}
+
+<*
+ @require x > 0
+ @ensure return > 0
+ *>
+fn int test3(int x)
+{
+	return x + 1;
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+	int fooofke;
+	test(&fooofke, 330);
+	test2(&fooofke, 150);
+	test3(123);
+	printf("Foo: %d\n", fooofke);
+}
+
+/* #expect: simple_test.ll
+
+define void @simple_test.test(ptr %0, i32 %1) #0 {
+entry:
+  %gt = icmp sgt i32 %1, 100
+  call void @llvm.assume(i1 %gt)
+  store i32 444, ptr %0, align 4
+  ret void
+}
+
+define i32 @simple_test.test2(ptr %0, i32 %1) #0 {
+entry:
+  %gt = icmp sgt i32 %1, 100
+  call void @llvm.assume(i1 %gt)
+  store i32 444, ptr %0, align 4
+  %lt = icmp slt i32 %1, 200
+  call void @llvm.assume(i1 %lt)
+  ret i32 %1
+}
+
+define i32 @simple_test.test3(i32 %0) #0 {
+entry:
+  %gt = icmp sgt i32 %0, 0
+  call void @llvm.assume(i1 %gt)
+  %add = add i32 %0, 1
+  %gt1 = icmp sgt i32 %add, 0
+  call void @llvm.assume(i1 %gt1)
+  ret i32 %add
+}
+
+define void @simple_test.main() #0 {
+entry:
+  %fooofke = alloca i32, align 4
+  store i32 0, ptr %fooofke, align 4
+  call void @simple_test.test(ptr %fooofke, i32 330)
+  %0 = call i32 @simple_test.test2(ptr %fooofke, i32 150)
+  %1 = call i32 @simple_test.test3(i32 123)
+  %2 = load i32, ptr %fooofke, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %2)
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @simple_test.main()
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/debug_symbols/constants.c3t b/test/test_suite7/debug_symbols/constants.c3t
new file mode 100644
index 000000000..05bff4463
--- /dev/null
+++ b/test/test_suite7/debug_symbols/constants.c3t
@@ -0,0 +1,36 @@
+// #target: macos-x64
+// #debuginfo: yes
+const char AA @private = 1;
+const char BB = 200 ;
+const uint CC @private = ~(uint)(0);
+const FOO @private = ~(uint)(0);
+
+/* #expect: constants.ll
+
+@constants.AA = internal unnamed_addr constant i8 1, align 1, !dbg !0
+@constants.BB = local_unnamed_addr constant i8 -56, align 1, !dbg !4
+@constants.CC = internal unnamed_addr constant i32 -1, align 4, !dbg !6
+@constants.FOO = internal unnamed_addr constant i32 -1, align 4, !dbg !9
+
+!llvm.module.flags = !{!11, !12, !13, !14, !15, !16}
+!llvm.dbg.cu = !{!17}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "AA", linkageName: "constants.AA", scope: !2
+!2 = !DIFile(filename: "constants.c3",
+!3 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char)
+!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
+!5 = distinct !DIGlobalVariable(name: "BB", linkageName: "constants.BB", scope: !2, file: !2, line: 2, type: !3, isLocal: false, isDefinition: true, align: 1)
+!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
+!7 = distinct !DIGlobalVariable(name: "CC", linkageName: "constants.CC", scope: !2, file: !2, line: 3, type: !8, isLocal: true, isDefinition: true, align: 4)
+!8 = !DIBasicType(name: "uint", size: 32, encoding: DW_ATE_unsigned)
+!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression())
+!10 = distinct !DIGlobalVariable(name: "FOO", linkageName: "constants.FOO", scope: !2, file: !2, line: 4, type: !8, isLocal: true, isDefinition: true, align: 4)
+!11 = !{i32 2, !"Dwarf Version", i32 4}
+!12 = !{i32 2, !"Debug Info Version", i32 3}
+!13 = !{i32 2, !"wchar_size", i32 4}
+!14 = !{i32 4, !"PIC Level", i32 2}
+!15 = !{i32 1, !"uwtable", i32 2}
+!16 = !{i32 2, !"frame-pointer", i32 2}
+!17 = distinct !DICompileUnit(language: DW_LANG_C11, file: !2, producer: "c3c", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !18, splitDebugInlining: false)
+!18 = !{!0, !4, !6, !9}
diff --git a/test/test_suite7/debug_symbols/constants_mingw.c3t b/test/test_suite7/debug_symbols/constants_mingw.c3t
new file mode 100644
index 000000000..9c5fedc84
--- /dev/null
+++ b/test/test_suite7/debug_symbols/constants_mingw.c3t
@@ -0,0 +1,38 @@
+// #target: mingw-x64
+// #debuginfo: yes
+const char AA @private = 1;
+const char BB = 200 ;
+const uint CC @private = ~(uint)(0);
+const FOO @private = ~(uint)(0);
+
+/* #expect: constants_mingw.ll
+
+; ModuleID = 'constants_mingw'
+
+@constants_mingw.AA = internal unnamed_addr constant i8 1, align 1, !dbg !0
+@constants_mingw.BB = local_unnamed_addr constant i8 -56, align 1, !dbg !4
+@constants_mingw.CC = internal unnamed_addr constant i32 -1, align 4, !dbg !6
+@constants_mingw.FOO = internal unnamed_addr constant i32 -1, align 4, !dbg !9
+
+!llvm.module.flags = !{!11, !12, !13, !14, !15, !16}
+!llvm.dbg.cu = !{!17}
+
+!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
+!1 = distinct !DIGlobalVariable(name: "AA", linkageName: "constants_mingw.AA", scope: !2, file: !2, line: 1, type: !3, isLocal: true, isDefinition: true, align: 1)
+!2 = !DIFile(filename: "constants_mingw.c3", directory
+!3 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char)
+!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
+!5 = distinct !DIGlobalVariable(name: "BB", linkageName: "constants_mingw.BB", scope: !2, file: !2, line: 2, type: !3, isLocal: false, isDefinition: true, align: 1)
+!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
+!7 = distinct !DIGlobalVariable(name: "CC", linkageName: "constants_mingw.CC", scope: !2, file: !2, line: 3, type: !8, isLocal: true, isDefinition: true, align: 4)
+!8 = !DIBasicType(name: "uint", size: 32, encoding: DW_ATE_unsigned)
+!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression())
+!10 = distinct !DIGlobalVariable(name: "FOO", linkageName: "constants_mingw.FOO", scope: !2, file: !2, line: 4, type: !8, isLocal: true, isDefinition: true, align: 4)
+!11 = !{i32 2, !"Dwarf Version", i32 4}
+!12 = !{i32 2, !"Debug Info Version", i32 3}
+!13 = !{i32 2, !"wchar_size", i32 4}
+!14 = !{i32 4, !"PIC Level", i32 2}
+!15 = !{i32 1, !"uwtable", i32 2}
+!16 = !{i32 2, !"frame-pointer", i32 2}
+!17 = distinct !DICompileUnit(language: DW_LANG_C11, file: !2, producer: "c3c", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !18, splitDebugInlining: false)
+!18 = !{!0, !4, !6, !9}
diff --git a/test/test_suite7/debug_symbols/ct_foreach.c3t b/test/test_suite7/debug_symbols/ct_foreach.c3t
new file mode 100644
index 000000000..6e099306b
--- /dev/null
+++ b/test/test_suite7/debug_symbols/ct_foreach.c3t
@@ -0,0 +1,55 @@
+// #target: macos-x64
+// #debuginfo: yes
+module test;
+struct Flags { bool flag1; }
+
+fn void foo() {
+  int[1] values;
+  $foreach ($i, $member : Flags.membersof)
+    values[$i] = $i;
+  $endforeach
+}
+
+fn void main() {
+  foo();
+}
+
+/* #expect: test.ll
+
+define void @test.foo() #0 !dbg !8 {
+entry:
+  %values = alloca [1 x i32], align 4
+  store i32 0, ptr %values, align 4, !dbg !17
+  store i32 0, ptr %values, align 4, !dbg !18
+  ret void, !dbg !18
+}
+!0 = !{i32 2, !"Dwarf Version", i32 4}
+!1 = !{i32 2, !"Debug Info Version", i32 3}
+!2 = !{i32 2, !"wchar_size", i32 4}
+!3 = !{i32 4, !"PIC Level", i32 2}
+!4 = !{i32 1, !"uwtable", i32 2}
+!5 = !{i32 2, !"frame-pointer", i32 2}
+!6 = distinct !DICompileUnit
+!7 = !DIFile(filename:
+!8 = distinct !DISubprogram(name: "foo", linkageName: "test.foo", scope: !7, file: !7, line: 4, type: !9, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !11)
+!9 = !DISubroutineType(types: !10)
+!10 = !{null}
+!11 = !{}
+!12 = !DILocalVariable(name: "values", scope: !8
+!13 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, size: 32, align: 32, elements: !15)
+!14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!15 = !{!16}
+!16 = !DISubrange(count: 1, lowerBound: 0)
+!17 = !DILocation(line: 5, column: 10, scope: !8)
+!18 = !DILocation(line: 7, column: 18, scope: !8)
+!19 = distinct !DISubprogram(name: "main", linkageName: "test.main", scope: !7, file: !7, line: 11, type: !9, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6)
+!20 = !DILocation(line: 12, column: 3, scope: !19)
+!21 = distinct !DISubprogram(name: "_$main", linkageName: "main", scope: !7, file: !7, line: 11, type: !22, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !11)
+!22 = !DISubroutineType(types: !23)
+!23 = !{!14, !14, !24}
+!24 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "char**", baseType: !25, size: 64, align: 64, dwarfAddressSpace: 0)
+!25 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "char*", baseType: !26, size: 64, align: 64, dwarfAddressSpace: 0)
+!26 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char)
+!27 = !DILocalVariable(name: ".anon", arg: 1, scope: !21, file: !7, line: 11, type: !14)
+!28 = !DILocation(line: 11, column: 9, scope: !21)
+!29 = !DILocalVariable(name: ".anon", arg: 2, scope: !21, file: !7, line: 11, type: !24)
diff --git a/test/test_suite7/debug_symbols/defer_macro.c3t b/test/test_suite7/debug_symbols/defer_macro.c3t
new file mode 100644
index 000000000..c39078338
--- /dev/null
+++ b/test/test_suite7/debug_symbols/defer_macro.c3t
@@ -0,0 +1,811 @@
+// #target: macos-x64
+// #debuginfo: yes
+module test;
+import foo;
+import attach;
+import std::io;
+
+fn void foo(int x)
+{
+	int! a = x;
+	while (try a)
+	{
+		a = 2;
+	}
+}
+
+fn int main(String[] args)
+{
+
+	// Case 1: Jump to create_foo
+	Foo* asdf = create_foo(attach::to_scope(), {.flag1 = true});
+
+	// Case 2: Ternary jump
+	test(args.len != 0 ? foo::BLACK : foo::WHITE);
+
+	test2();
+	return 0;
+}
+
+struct Foo
+{
+	void* asdf;
+}
+
+
+
+fn Foo* create_foo(Attach_Arg attach, Box_Flags flags, String name = {})
+{
+	return mem::new(Foo);
+}
+
+bitstruct Box_Flags : ulong
+{
+	bool flag1;
+}
+
+fn Foo* test(Color color)
+{
+	io::printn(color);
+	return null;
+}
+
+fn void* test2()
+{
+	// Case 3: Trailing macro body exit jump
+	@scratch(; Arena* scratch)
+	{
+	    void* asdf;
+	    return asdf;
+	};
+}
+
+module foo;
+import std::io;
+
+enum ID_Type : char
+{
+	NONE,
+	UNIQUE,
+}
+
+struct Id {
+  ulong value;
+  ID_Type type;
+}
+
+macro Id make(type, value)
+{
+	return (Id){.type = type, .value = value};
+}
+
+macro Id unique()
+{
+	static char x;
+	return make(ID_Type.UNIQUE, (ulong)&x);
+}
+
+
+distinct Color = float[<4>];
+
+const Color BLACK = {0, 0, 0, 1};
+const Color WHITE = {1, 1, 1, 1};
+
+struct Arena @export
+{
+	usz cursor;
+}
+
+struct Arena_Cursor @export
+{
+    Arena* arena;
+    usz cursor;
+}
+
+fn void rewind(Arena* arena, usz pos) @export("arena_rewind")
+{
+	arena.cursor = pos;
+}
+
+fn Arena_Cursor get_cursor(Arena* arena) @inline => (Arena_Cursor) {arena, arena.cursor};
+fn void restore_cursor(Arena_Cursor cursor) @inline => rewind(cursor.arena, cursor.cursor);
+
+
+fn Arena_Cursor scratch_begin(Arena*[] conflicts) @export("arena_scratch_begin")
+{
+	static Arena scratch_arena;
+	Arena* arena = &scratch_arena;
+	return arena ? get_cursor(arena) : {};
+}
+
+fn void scratch_end(Arena_Cursor cursor) @inline @export("arena_scratch_end") => restore_cursor(cursor);
+
+macro void @scratch(Arena*... conflicts; @body(Arena* arena)) @builtin
+{
+	Arena_Cursor scratch = scratch_begin(conflicts);
+	defer scratch_end(scratch);
+	@body(scratch.arena);
+}
+
+module attach;
+enum Attach_Arg_Kind
+{
+	TOP,
+}
+
+struct Attach_Arg
+{
+    Attach_Arg_Kind kind;
+    void* box;
+}
+
+fn Attach_Arg to_scope() @inline
+{
+  return { TOP, null };
+}
+
+/* #expect: test.ll
+
+define void @test.foo(i32 %0) #0 !dbg !18 {
+entry:
+  %x = alloca i32, align 4
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  store i32 %0, ptr %x, align 4
+  !23
+  !25
+  %1 = load i32, ptr %x, align 4, !dbg !26
+  store i32 %1, ptr %a, align 4, !dbg !26
+  store i64 0, ptr %a.f, align 8, !dbg !26
+  br label %loop.cond, !dbg !27
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %load.err = load i64, ptr %a.f, align 8, !dbg !28
+  %result = icmp eq i64 %load.err, 0, !dbg !28
+  br i1 %result, label %loop.body, label %loop.exit, !dbg !28
+
+loop.body:                                        ; preds = %loop.cond
+  store i32 2, ptr %a, align 4, !dbg !30
+  store i64 0, ptr %a.f, align 8, !dbg !30
+  br label %loop.cond, !dbg !30
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void, !dbg !30
+}
+
+; Function Attrs: nounwind uwtable
+define i32 @test.main(ptr %0, i64 %1) #0 !dbg !32 {
+entry:
+  %args = alloca %"char[][]", align 8
+  %asdf = alloca ptr, align 8
+  %result = alloca %Attach_Arg, align 8
+  store ptr %0, ptr %args, align 8
+  %ptradd = getelementptr inbounds i8, ptr %args, i64 8
+  store i64 %1, ptr %ptradd, align 8
+    !50
+    !56
+  %2 = call { i32, ptr } @attach.to_scope()
+  store { i32, ptr } %2, ptr %result, align 8
+  %lo = load i32, ptr %result, align 8, !dbg !58
+  %ptradd1 = getelementptr inbounds i8, ptr %result, i64 8, !dbg !58
+  %hi = load ptr, ptr %ptradd1, align 8, !dbg !58
+  %3 = call ptr @test.create_foo(i32 %lo, ptr %hi, i64 1, ptr null, i64 0), !dbg !60
+  store ptr %3, ptr %asdf, align 8, !dbg !60
+  %ptradd2 = getelementptr inbounds i8, ptr %args, i64 8, !dbg !61
+  %4 = load i64, ptr %ptradd2, align 8, !dbg !61
+  %neq = icmp ne i64 0, %4, !dbg !61
+  %ternary = select i1 %neq, <4 x float> <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, <4 x float>
+  %5 = call ptr @test.test(<4 x float> %ternary), !dbg !63
+  %6 = call ptr @test.test2(), !dbg !64
+  ret i32 0, !dbg !65
+}
+
+
+define ptr @test.create_foo(i32 %0, ptr %1, i64 %2, ptr %3, i64 %4) #0 !dbg !66 {
+entry:
+  %attach = alloca %Attach_Arg, align 8
+  %flags = alloca i64, align 8
+  %name = alloca %"char[]", align 8
+  store i32 %0, ptr %attach, align 8
+  %ptradd = getelementptr inbounds i8, ptr %attach, i64 8
+  store ptr %1, ptr %ptradd, align 8
+  !70
+  store i64 %2, ptr %flags, align 8
+  !72
+  store ptr %3, ptr %name, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %name, i64 8
+  store i64 %4, ptr %ptradd1, align 8
+  !74
+  %5 = call ptr @std.core.mem.calloc(i64 8)
+  ret ptr %5, !dbg !75
+}
+
+define ptr @test.test(<4 x float> %0) #0 !dbg !79 {
+entry:
+  %color = alloca <4 x float>, align 16
+  %x = alloca <4 x float>, align 16
+  %out = alloca ptr, align 8
+  %x1 = alloca <4 x float>, align 16
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %out2 = alloca ptr, align 8
+  %x3 = alloca <4 x float>, align 16
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var5 = alloca i64, align 8
+  %error_var11 = alloca i64, align 8
+  store <4 x float> %0, ptr %color, align 16
+  !88
+  %1 = load <4 x float>, ptr %color, align 16
+  store <4 x float> %1, ptr %x, align 16
+  %2 = call ptr @std.io.stdout(), !dbg !89
+  store ptr %2, ptr %out, align 8
+  %3 = load <4 x float>, ptr %x, align 16
+  store <4 x float> %3, ptr %x1, align 16
+  !95
+  %4 = load ptr, ptr %out, align 8
+  store ptr %4, ptr %out2, align 8
+  %5 = load <4 x float>, ptr %x1, align 16
+  store <4 x float> %5, ptr %x3, align 16
+  %6 = load ptr, ptr %out2, align 8, !dbg !97
+  %7 = insertvalue %any undef, ptr %6, 0, !dbg !97
+  %8 = insertvalue %any %7, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1, !dbg !97
+  %9 = insertvalue %any undef, ptr %x3, 0, !dbg !100
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.foo.Color" to i64), 1, !dbg !100
+  store %any %10, ptr %varargslots, align 16, !dbg !100
+  %11 = insertvalue %"any[]" undef, ptr %varargslots, 0, !dbg !100
+  %"$$temp" = insertvalue %"any[]" %11, i64 1, 1, !dbg !100
+  store %any %8, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %12 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str, i64 2, ptr byval(%"any[]") align 8 %indirectarg), !dbg !101
+  %not_err = icmp eq i64 %12, 0, !dbg !101
+  %13 = call i1 @llvm.expect.i1(i1 %not_err, i1 true), !dbg !101
+  br i1 %13, label %after_check, label %assign_optional, !dbg !101
+
+assign_optional:                                  ; preds = %entry
+  store i64 %12, ptr %error_var, align 8, !dbg !101
+  br label %guard_block, !dbg !101
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block, !dbg !101
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr, !dbg !101
+
+noerr_block:                                      ; preds = %after_check
+  %14 = load i64, ptr %retparam, align 8, !dbg !101
+  store i64 %14, ptr %len, align 8, !dbg !101
+  %15 = load ptr, ptr %out, align 8, !dbg !102
+  %16 = call i64 @std.io.File.write_byte(ptr %15, i8 zeroext 10), !dbg !103
+  %not_err6 = icmp eq i64 %16, 0, !dbg !103
+  %17 = call i1 @llvm.expect.i1(i1 %not_err6, i1 true), !dbg !103
+  br i1 %17, label %after_check8, label %assign_optional7, !dbg !103
+
+assign_optional7:                                 ; preds = %noerr_block
+  store i64 %16, ptr %error_var5, align 8, !dbg !103
+  br label %guard_block9, !dbg !103
+
+after_check8:                                     ; preds = %noerr_block
+  br label %noerr_block10, !dbg !103
+
+guard_block9:                                     ; preds = %assign_optional7
+  br label %voiderr, !dbg !103
+
+noerr_block10:                                    ; preds = %after_check8
+  %18 = load ptr, ptr %out, align 8, !dbg !104
+  %19 = call i64 @std.io.File.flush(ptr %18), !dbg !104
+  %not_err12 = icmp eq i64 %19, 0, !dbg !104
+  %20 = call i1 @llvm.expect.i1(i1 %not_err12, i1 true), !dbg !104
+  br i1 %20, label %after_check14, label %assign_optional13, !dbg !104
+
+assign_optional13:                                ; preds = %noerr_block10
+  store i64 %19, ptr %error_var11, align 8, !dbg !104
+  br label %guard_block15, !dbg !104
+
+after_check14:                                    ; preds = %noerr_block10
+  br label %noerr_block16, !dbg !104
+
+guard_block15:                                    ; preds = %assign_optional13
+  br label %voiderr, !dbg !104
+
+noerr_block16:                                    ; preds = %after_check14
+  %21 = load i64, ptr %len, align 8, !dbg !105
+  %add = add i64 %21, 1, !dbg !105
+  br label %voiderr, !dbg !96
+
+voiderr:                                          ; preds = %noerr_block16, %guard_block15, %guard_block9, %guard_block
+  ret ptr null, !dbg !106
+}
+
+define ptr @test.test2() #0 !dbg !107 {
+entry:
+  %conflicts = alloca %"Arena*[]", align 8
+  %scratch = alloca %Arena_Cursor, align 8
+  %result = alloca %Arena_Cursor, align 8
+  %scratch1 = alloca ptr, align 8
+  %asdf = alloca ptr, align 8
+  store %"Arena*[]" zeroinitializer, ptr %conflicts, align 8
+  !120
+  %lo = load ptr, ptr %conflicts, align 8, !dbg !122
+  %ptradd = getelementptr inbounds i8, ptr %conflicts, i64 8, !dbg !122
+  %hi = load i64, ptr %ptradd, align 8, !dbg !122
+  %0 = call { ptr, i64 } @arena_scratch_begin(ptr %lo, i64 %hi), !dbg !123
+  store { ptr, i64 } %0, ptr %result, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %scratch, ptr align 8 %result, i32 16, i1 false)
+  !125
+  %1 = load ptr, ptr %scratch, align 8, !dbg !126
+  store ptr %1, ptr %scratch1, align 8, !dbg !126
+  !130
+  store ptr null, ptr %asdf, align 8, !dbg !130
+  %2 = load ptr, ptr %asdf, align 8, !dbg !131
+  %lo2 = load ptr, ptr %scratch, align 8, !dbg !132
+  %ptradd3 = getelementptr inbounds i8, ptr %scratch, i64 8, !dbg !132
+  %hi4 = load i64, ptr %ptradd3, align 8, !dbg !132
+  call void @arena_scratch_end(ptr %lo2, i64 %hi4)
+  ret ptr %2, !dbg !134
+}
+
+define i32 @main(i32 %0, ptr %1) #0 !dbg !135 {
+entry:
+  %.anon = alloca i32, align 4
+  %.anon1 = alloca ptr, align 8
+  %argc = alloca i32, align 4
+  %argv = alloca ptr, align 8
+  %blockret = alloca i32, align 4
+  %list = alloca %"char[][]", align 8
+  %argc2 = alloca i32, align 4
+  %argv3 = alloca ptr, align 8
+  %list5 = alloca %"char[][]", align 8
+  %elements = alloca i64, align 8
+  %allocator = alloca %any, align 8
+  %elements6 = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %allocator7 = alloca %any, align 8
+  %elements8 = alloca i64, align 8
+  %allocator10 = alloca %any, align 8
+  %size = alloca i64, align 8
+  %blockret11 = alloca ptr, align 8
+  %.inlinecache = alloca ptr, align 8
+  %.cachedtype = alloca ptr, align 8
+  %retparam = alloca ptr, align 8
+  %taddr = alloca ptr, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %indirectarg = alloca %"any[]", align 8
+  %i = alloca i32, align 4
+  %arg = alloca ptr, align 8
+  %len = alloca i64, align 8
+  %ptr = alloca ptr, align 8
+  %len18 = alloca i64, align 8
+  store ptr null, ptr %.cachedtype, align 8
+  store i32 %0, ptr %.anon, align 4
+  !140
+  store ptr %1, ptr %.anon1, align 8
+  !140
+  %2 = load i32, ptr %.anon, align 4
+  store i32 %2, ptr %argc, align 4
+  %3 = load ptr, ptr %.anon1, align 8
+  store ptr %3, ptr %argv, align 8
+  !145
+  %4 = load i32, ptr %argc, align 4
+  store i32 %4, ptr %argc2, align 4
+  %5 = load ptr, ptr %argv, align 8
+  store ptr %5, ptr %argv3, align 8
+  !148
+  %6 = load i32, ptr %argc2, align 4, !dbg !150
+  %sext = sext i32 %6 to i64, !dbg !150
+  store i64 %sext, ptr %elements, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %allocator, ptr align 8 @std.core.mem.allocator.thread_allocator, i32 16, i1 false)
+  %7 = load i64, ptr %elements, align 8
+  store i64 %7, ptr %elements6, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %allocator7, ptr align 8 %allocator, i32 16, i1 false)
+  %8 = load i64, ptr %elements6, align 8
+  store i64 %8, ptr %elements8, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %allocator10, ptr align 8 %allocator7, i32 16, i1 false)
+  %9 = load i64, ptr %elements8, align 8, !dbg !151
+  %mul = mul i64 16, %9, !dbg !159
+  store i64 %mul, ptr %size, align 8
+  %10 = load i64, ptr %size, align 8, !dbg !160
+  %i2nb = icmp eq i64 %10, 0, !dbg !160
+  br i1 %i2nb, label %if.then, label %if.exit, !dbg !160
+
+if.then:                                          ; preds = %entry
+  store ptr null, ptr %blockret11, align 8, !dbg !163
+  br label %expr_block.exit, !dbg !163
+
+if.exit:                                          ; preds = %entry
+  %ptradd = getelementptr inbounds i8, ptr %allocator10, i64 8, !dbg !164
+  %11 = load i64, ptr %ptradd, align 8, !dbg !164
+  %12 = inttoptr i64 %11 to ptr, !dbg !164
+  %type = load ptr, ptr %.cachedtype, align 8
+  %13 = icmp eq ptr %12, %type
+  br i1 %13, label %cache_hit, label %cache_miss
+
+cache_miss:                                       ; preds = %if.exit
+  %ptradd12 = getelementptr inbounds i8, ptr %12, i64 16
+  %14 = load ptr, ptr %ptradd12, align 8
+  %15 = call ptr @.dyn_search(ptr %14, ptr @"$sel.acquire")
+  store ptr %15, ptr %.inlinecache, align 8
+  store ptr %12, ptr %.cachedtype, align 8
+  br label %16
+
+cache_hit:                                        ; preds = %if.exit
+  %cache_hit_fn = load ptr, ptr %.inlinecache, align 8
+  br label %16
+
+16:                                               ; preds = %cache_hit, %cache_miss
+  %fn_phi = phi ptr [ %cache_hit_fn, %cache_hit ], [ %15, %cache_miss ]
+  %17 = icmp eq ptr %fn_phi, null
+  br i1 %17, label %missing_function, label %match
+
+missing_function:                                 ; preds = %16
+  %18 = load ptr, ptr @std.core.builtin.panic, align 8, !dbg !166
+  call void %18(ptr @.panic_msg, i64 44, ptr @.file, i64 16, ptr @.func, i64 6, i32 68)
+  unreachable, !dbg !166
+
+match:                                            ; preds = %16
+  %19 = load ptr, ptr %allocator10, align 8
+  %20 = load i64, ptr %size, align 8
+  %21 = call i64 %fn_phi(ptr %retparam, ptr %19, i64 %20, i32 0, i64 0), !dbg !166
+  %not_err = icmp eq i64 %21, 0, !dbg !166
+  %22 = call i1 @llvm.expect.i1(i1 %not_err, i1 true), !dbg !166
+  br i1 %22, label %after_check, label %assign_optional, !dbg !166
+
+assign_optional:                                  ; preds = %match
+  store i64 %21, ptr %error_var, align 8, !dbg !166
+  br label %panic_block, !dbg !166
+
+after_check:                                      ; preds = %match
+  %23 = load ptr, ptr %retparam, align 8, !dbg !166
+  store ptr %23, ptr %blockret11, align 8, !dbg !166
+  br label %expr_block.exit, !dbg !166
+
+expr_block.exit:                                  ; preds = %after_check, %if.then
+  %24 = load ptr, ptr %blockret11, align 8, !dbg !166
+  store ptr %24, ptr %taddr, align 8
+  %25 = load ptr, ptr %taddr, align 8
+  %26 = load i64, ptr %elements8, align 8, !dbg !167
+  %add = add i64 0, %26, !dbg !167
+  %size13 = sub i64 %add, 0, !dbg !167
+  %27 = insertvalue %"char[][]" undef, ptr %25, 0, !dbg !167
+  %28 = insertvalue %"char[][]" %27, i64 %size13, 1, !dbg !167
+  br label %noerr_block, !dbg !167
+
+panic_block:                                      ; preds = %assign_optional
+  %29 = insertvalue %any undef, ptr %error_var, 0, !dbg !167
+  %30 = insertvalue %any %29, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1, !dbg !167
+  store %any %30, ptr %varargslots, align 16
+  %31 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %31, i64 1, 1
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg.1
+  unreachable, !dbg !154
+
+noerr_block:                                      ; preds = %expr_block.exit
+  store %"char[][]" %28, ptr %list5, align 8, !dbg !154
+  !170
+  store i32 0, ptr %i, align 4, !dbg !171
+  br label %loop.cond, !dbg !171
+
+loop.cond:                                        ; preds = %loop.exit, %noerr_block
+  %32 = load i32, ptr %i, align 4, !dbg !172
+  %33 = load i32, ptr %argc2, align 4, !dbg !173
+  %lt = icmp slt i32 %32, %33, !dbg !172
+  br i1 %lt, label %loop.body, label %loop.exit26, !dbg !172
+
+loop.body:                                        ; preds = %loop.cond
+  !176
+  %34 = load ptr, ptr %argv3, align 8, !dbg !177
+  %35 = load i32, ptr %i, align 4, !dbg !178
+  %sext14 = sext i32 %35 to i64, !dbg !178
+  %ptroffset = getelementptr inbounds [8 x i8], ptr %34, i64 %sext14, !dbg !178
+  %36 = load ptr, ptr %ptroffset, align 8, !dbg !178
+  store ptr %36, ptr %arg, align 8, !dbg !178
+  !180
+  store i64 0, ptr %len, align 8, !dbg !181
+  %37 = load ptr, ptr %list5, align 8, !dbg !182
+  %38 = load i32, ptr %i, align 4, !dbg !183
+  %sext15 = sext i32 %38 to i64, !dbg !183
+  %ptroffset16 = getelementptr inbounds [16 x i8], ptr %37, i64 %sext15, !dbg !183
+  %39 = load ptr, ptr %arg, align 8, !dbg !184
+  %40 = load ptr, ptr %arg, align 8
+  store ptr %40, ptr %ptr, align 8
+  !187
+  store i64 0, ptr %len18, align 8, !dbg !189
+  br label %loop.cond19, !dbg !190
+
+loop.cond19:                                      ; preds = %loop.body21, %loop.body
+  %41 = load ptr, ptr %ptr, align 8, !dbg !191
+  %42 = load i64, ptr %len18, align 8, !dbg !193
+  %ptradd20 = getelementptr inbounds i8, ptr %41, i64 %42, !dbg !193
+  %43 = load i8, ptr %ptradd20, align 1, !dbg !193
+  %i2b = icmp ne i8 %43, 0, !dbg !193
+  br i1 %i2b, label %loop.body21, label %loop.exit, !dbg !193
+
+loop.body21:                                      ; preds = %loop.cond19
+  %44 = load i64, ptr %len18, align 8, !dbg !194
+  %add22 = add i64 %44, 1, !dbg !194
+  store i64 %add22, ptr %len18, align 8, !dbg !194
+  br label %loop.cond19, !dbg !194
+
+loop.exit:                                        ; preds = %loop.cond19
+  %45 = load i64, ptr %len18, align 8, !dbg !195
+  %add23 = add i64 0, %45, !dbg !195
+  %size24 = sub i64 %add23, 0, !dbg !195
+  %46 = insertvalue %"char[]" undef, ptr %39, 0, !dbg !195
+  %47 = insertvalue %"char[]" %46, i64 %size24, 1, !dbg !195
+  store %"char[]" %47, ptr %ptroffset16, align 8, !dbg !195
+  %48 = load i32, ptr %i, align 4, !dbg !196
+  %add25 = add i32 %48, 1, !dbg !196
+  store i32 %add25, ptr %i, align 4, !dbg !196
+  br label %loop.cond, !dbg !196
+
+loop.exit26:                                      ; preds = %loop.cond
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %list, ptr align 8 %list5, i32 16, i1 false), !dbg !197
+  %lo = load ptr, ptr %list, align 8, !dbg !198
+  %ptradd27 = getelementptr inbounds i8, ptr %list, i64 8, !dbg !198
+  %hi = load i64, ptr %ptradd27, align 8, !dbg !198
+  %49 = call i32 @test.main(ptr %lo, i64 %hi), !dbg !199
+  store i32 %49, ptr %blockret, align 4, !dbg !199
+  %50 = load ptr, ptr %list, align 8, !dbg !200
+  call void @std.core.mem.free(ptr %50)
+  br label %expr_block.exit28, !dbg !202
+
+expr_block.exit28:                                ; preds = %loop.exit26
+  %51 = load i32, ptr %blockret, align 4, !dbg !202
+  ret i32 %51, !dbg !202
+}
+
+declare { i32, ptr } @attach.to_scope() #0
+
+declare extern_weak ptr @std.core.mem.calloc(i64) #0
+
+declare extern_weak ptr @std.io.stdout() #0
+
+declare extern_weak i64 @std.io.fprintf(ptr, i64, ptr, ptr, i64, ptr byval(%"any[]") align 8) #0
+
+declare extern_weak i64 @std.io.File.write_byte(ptr, i8 zeroext) #0
+
+declare extern_weak i64 @std.io.File.flush(ptr) #0
+
+declare { ptr, i64 } @arena_scratch_begin(ptr, i64) #0
+
+declare void @arena_scratch_end(ptr, i64) #0
+
+define weak ptr @.dyn_search(ptr %0, ptr %1) unnamed_addr {
+entry:
+  br label %check
+
+check:                                            ; preds = %no_match, %entry
+  %2 = phi ptr [ %0, %entry ], [ %9, %no_match ]
+  %3 = icmp eq ptr %2, null
+  br i1 %3, label %missing_function, label %compare
+
+missing_function:                                 ; preds = %check
+  ret ptr null
+
+compare:                                          ; preds = %check
+  %4 = getelementptr inbounds
+  %5 = load ptr, ptr %4, align 8
+  %6 = icmp eq ptr %5, %1
+  br i1 %6, label %match, label %no_match
+
+match:                                            ; preds = %compare
+  %7 = load ptr, ptr %2, align 8
+  ret ptr %7
+
+no_match:                                         ; preds = %compare
+  %8 = getelementptr inbounds
+  %9 = load ptr, ptr %8, align 8
+  br label %check
+}
+
+!llvm.dbg.cu = !{!6}
+
+!0 = !{i32 2, !"Dwarf Version", i32 4}
+!1 = !{i32 2, !"Debug Info Version", i32 3}
+!2 = !{i32 2, !"wchar_size", i32 4}
+!3 = !{i32 4, !"PIC Level", i32 2}
+!4 = !{i32 1, !"uwtable", i32 2}
+!5 = !{i32 2, !"frame-pointer", i32 2}
+!6 = distinct !DICompileUnit(language: DW_LANG_C11
+!7 = !DIFile(filename: "defer_macro.c3"
+!8 = !{!9}
+!9 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "Attach_Arg_Kind", scope: !10, file: !7, line: 129, baseType: !15, size: 32, align: 32, elements: !16)
+!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "Attach_Arg", scope: !7, file: !7, line: 134, size: 128, align: 64, elements: !11, identifier: "attach.Attach_Arg")
+!11 = !{!12, !13}
+!12 = !DIDerivedType(tag: DW_TAG_member, name: "kind", scope: !10, file: !7, line: 136, baseType: !9, size: 32, align: 32)
+!13 = !DIDerivedType(tag: DW_TAG_member, name: "box", scope: !10, file: !7, line: 137, baseType: !14, size: 64, align: 64, offset: 64)
+!14 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "void*", baseType: null, size: 64, align: 64, dwarfAddressSpace: 0)
+!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!16 = !{!17}
+!17 = !DIEnumerator(name: "TOP", value: 0)
+!18 = distinct !DISubprogram(name: "foo", linkageName: "test.foo", scope: !7, file: !7, line: 6, type: !19, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!19 = !DISubroutineType(types: !20)
+!20 = !{null, !15}
+!21 = !{}
+!22 = !DILocalVariable(name: "x", arg: 1, scope: !18, file: !7, line: 6, type: !15)
+!23 = !DILocation(line: 6, column: 17, scope: !18)
+!24 = !DILocalVariable(name: "a", scope: !18, file: !7, line: 8, type: !15, align: 4)
+!25 = !DILocation(line: 8, column: 7, scope: !18)
+!26 = !DILocation(line: 8, column: 11, scope: !18)
+!27 = !DILocation(line: 9, column: 2, scope: !18)
+!28 = !DILocation(line: 9, column: 9, scope: !29)
+!29 = distinct !DILexicalBlock(scope: !18, file: !7, line: 9, column: 2)
+!30 = !DILocation(line: 11, column: 7, scope: !31)
+!31 = distinct !DILexicalBlock(scope: !29, file: !7, line: 10, column: 2)
+!32 = distinct !DISubprogram(name: "main", linkageName: "test.main", scope: !7, file: !7, line: 15, type: !33, scopeLine: 15, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!33 = !DISubroutineType(types: !34)
+!34 = !{!15, !35}
+!35 = !DICompositeType(tag: DW_TAG_structure_type, name: "String[]", size: 128, align: 64, elements: !36, identifier: "String[]")
+!36 = !{!37, !48}
+!37 = !DIDerivedType(tag: DW_TAG_member, name: "ptr", scope: !35, baseType: !38, size: 64, align: 64)
+!38 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "String*", baseType: !39, size: 64, align: 64, dwarfAddressSpace: 0)
+!39 = !DIDerivedType(tag: DW_TAG_typedef, name: "String", baseType: !40)
+!40 = !DICompositeType(tag: DW_TAG_structure_type, name: "char[]", size: 128, align: 64, elements: !41, identifier: "char[]")
+!41 = !{!42, !45}
+!42 = !DIDerivedType(tag: DW_TAG_member, name: "ptr", scope: !40, baseType: !43, size: 64, align: 64)
+!43 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "char*", baseType: !44, size: 64, align: 64, dwarfAddressSpace: 0)
+!44 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char)
+!45 = !DIDerivedType(tag: DW_TAG_member, name: "len", scope: !40, baseType: !46, size: 64, align: 64, offset: 64)
+!46 = !DIDerivedType(tag: DW_TAG_typedef, name: "usz", baseType: !47)
+!47 = !DIBasicType(name: "ulong", size: 64, encoding: DW_ATE_unsigned)
+!48 = !DIDerivedType(tag: DW_TAG_member, name: "len", scope: !35, baseType: !46, size: 64, align: 64, offset: 64)
+!49 = !DILocalVariable(name: "args", arg: 1, scope: !32, file: !7, line: 15, type: !35)
+!50 = !DILocation(line: 15, column: 22, scope: !32)
+!51 = !DILocalVariable(name: "asdf", scope: !32, file: !7, line: 19, type: !52, align: 8)
+!52 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "Foo*", baseType: !53, size: 64, align: 64, dwarfAddressSpace: 0)
+!53 = !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", scope: !7, file: !7, line: 28, size: 64, align: 64, elements: !54, identifier: "test.Foo")
+!54 = !{!55}
+!55 = !DIDerivedType(tag: DW_TAG_member, name: "asdf", scope: !53, file: !7, line: 30, baseType: !14, size: 64, align: 64)
+!56 = !DILocation(line: 19, column: 7, scope: !32)
+!57 = !DILocation(line: 19, column: 25, scope: !32)
+!58 = !DILocation
+!59 = distinct !DISubprogram(name: "[DEFAULT INIT]", linkageName: "[DEFAULT INIT]", scope: !7, file: !7, line: 35, scopeLine: 35, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6)
+!60 = !DILocation(line: 19, column: 14, scope: !32)
+!61 = !DILocation(line: 22, column: 7, scope: !32)
+!62 = !DILocation(line: 22, column: 36, scope: !32)
+!63 = !DILocation(line: 22, column: 2, scope: !32)
+!64 = !DILocation(line: 24, column: 2, scope: !32)
+!65 = !DILocation(line: 25, column: 9, scope: !32)
+!66 = distinct !DISubprogram(name: "create_foo", linkageName: "test.create_foo", scope: !7, file: !7, line: 35, type: !67, scopeLine: 35, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!67 = !DISubroutineType(types: !68)
+!68 = !{!52, !10, !47, !39}
+!69 = !DILocalVariable(name: "attach", arg: 1, scope: !66, file: !7, line: 35, type: !10)
+!70 = !DILocation(line: 35, column: 31, scope: !66)
+!71 = !DILocalVariable(name: "flags", arg: 2, scope: !66, file: !7, line: 35, type: !47)
+!72 = !DILocation(line: 35, column: 49, scope: !66)
+!73 = !DILocalVariable(name: "name", arg: 3, scope: !66, file: !7, line: 35, type: !39)
+!74 = !DILocation(line: 35, column: 63, scope: !66)
+!75 = !DILocation(line:
+!76 = distinct !DISubprogram(name: "new", linkageName: "new", scope: !77, file: !77, line:
+!77 = !DIFile(filename: "mem.c3"
+!78 = !DILocation(line: 37, column: 9, scope: !66)
+!79 = distinct !DISubprogram(name: "test", linkageName: "test.test", scope: !7, file: !7, line: 45, type: !80, scopeLine: 45, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!80 = !DISubroutineType(types: !81)
+!81 = !{!52, !82}
+!82 = !DIDerivedType(tag: DW_TAG_typedef, name: "Color", scope: !7, file: !7, line: 87, baseType: !83, align: 16)
+!83 = !DICompositeType(tag: DW_TAG_array_type, baseType: !84, size: 128, align: 32, flags: DIFlagVector, elements: !85)
+!84 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
+!85 = !{!86}
+!86 = !DISubrange(count: 4, lowerBound: 0)
+!87 = !DILocalVariable(name: "color", arg: 1, scope: !79, file: !7, line: 45, type: !82)
+!88 = !DILocation(line: 45, column: 20, scope: !79)
+!89 = !DILocation(
+!90 = distinct !DISubprogram(name: "printn", linkageName: "printn"
+!91 = !DIFile(filename: "io.c3"
+!92 = !DILocation(line: 47, column: 2, scope: !79)
+!93 = !DILocalVariable(name: "len"
+!94 = distinct !DISubprogram(name: "fprintn", linkageName: "fprintn", scope: !91
+!95 = !DILocation
+!96 = !DILocation
+!97 = !DILocation
+!98 = distinct !DISubprogram(name: "fprint", linkageName: "fprint", scope: !91
+!99 = !DILocation
+!100 = !DILocation
+!101 = !DILocation
+!102 = !DILocation
+!103 = !DILocation
+!104 = !DILocation
+!105 = !DILocation
+!106 = !DILocation
+!107 = distinct !DISubprogram(name: "test2", linkageName: "test.test2", scope: !7, file: !7, line: 51, type: !108, scopeLine: 51, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!108 = !DISubroutineType(types: !109)
+!109 = !{!14}
+!110 = !DILocalVariable(name: "scratch", scope: !111, file: !7, line: 123, type: !112, align: 8)
+!111 = distinct !DISubprogram(name: "@scratch", linkageName: "@scratch", scope: !7, file: !7, line: 121, scopeLine: 121, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!112 = !DICompositeType(tag: DW_TAG_structure_type, name: "Arena_Cursor", scope: !7, file: !7, line: 97, size: 128, align: 64, elements: !113, identifier: "foo__Arena_Cursor")
+!113 = !{!114, !119}
+!114 = !DIDerivedType(tag: DW_TAG_member, name: "arena", scope: !112, file: !7, line: 99, baseType: !115, size: 64, align: 64)
+!115 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "Arena*", baseType: !116, size: 64, align: 64, dwarfAddressSpace: 0)
+!116 = !DICompositeType(tag: DW_TAG_structure_type, name: "Arena", scope: !7, file: !7, line: 92, size: 64, align: 64, elements: !117, identifier: "foo__Arena")
+!117 = !{!118}
+!118 = !DIDerivedType(tag: DW_TAG_member, name: "cursor", scope: !116, file: !7, line: 94, baseType: !46, size: 64, align: 64)
+!119 = !DIDerivedType(tag: DW_TAG_member, name: "cursor", scope: !112, file: !7, line: 100, baseType: !46, size: 64, align: 64, offset: 64)
+!120 = !DILocation(line: 123, column: 15, scope: !111, inlinedAt: !121)
+!121 = !DILocation
+!122 = !DILocation
+!123 = !DILocation
+!124 = !DILocalVariable(name: "scratch", scope: !107, file: !7, line: 54, type: !115, align: 8)
+!125 = !DILocation(line: 54, column: 20, scope: !107)
+!126 = !DILocation
+!127 = distinct !DILexicalBlock(scope: !111, file: !7, line: 125, column: 2)
+!128 = !DILocalVariable(name: "asdf", scope: !129, file: !7, line: 56, type: !14, align: 8)
+!129 = distinct !DILexicalBlock(scope: !107, file: !7, line: 55, column: 2)
+!130 = !DILocation(line: 56, column: 12, scope: !129)
+!131 = !DILocation(line: 57, column: 13, scope: !129)
+!132 = !DILocation
+!133 = distinct !DILexicalBlock(scope: !111, file: !7, line: 124, column: 8)
+!134 = !DILocation
+!135 = distinct !DISubprogram(name: "_$main", linkageName: "main", scope: !7, file: !7, line: 15, type: !136, scopeLine: 15, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!136 = !DISubroutineType(types: !137)
+!137 = !{!15, !15, !138}
+!138 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "char**", baseType: !43, size: 64, align: 64, dwarfAddressSpace: 0)
+!139 = !DILocalVariable(name: ".anon", arg: 1, scope: !135, file: !7, line: 15, type: !15)
+!140 = !DILocation(line: 15, column: 8, scope: !135)
+!141 = !DILocalVariable(name: ".anon", arg: 2, scope: !135, file: !7, line: 15, type: !138)
+!142 = !DILocalVariable(name: "list", scope: !143, file: !7, line: 45, type: !35, align: 8)
+!143 = distinct !DISubprogram(name: "@main_to_int_main_args", linkageName: "@main_to_int_main_args", scope: !144, file: !144, line: 43, scopeLine: 43, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!144 = !DIFile(filename: "main_stub.c3"
+!145 = !DILocation
+!146 = !DILocalVariable(name: "list", scope: !147, file: !7, line: 24, type: !35, align: 8)
+!147 = distinct !DISubprogram(name: "args_to_strings", linkageName: "args_to_strings", scope: !144, file: !144, line: 22, scopeLine: 22, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!148 = !DILocation
+!149 = !DILocation
+!150 = !DILocation
+!151 = !DILocation
+!152 = distinct !DISubprogram(name: "alloc_array_try", linkageName: "alloc_array_try", scope: !153, file: !153, line: 284, scopeLine: 284, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6)
+!153 = !DIFile(filename: "mem_allocator.c3"
+!154 = !DILocation
+!155 = distinct !DISubprogram(name: "alloc_array", linkageName: "alloc_array", scope: !153
+!156 = !DILocation
+!157 = distinct !DISubprogram(name: "alloc_array", linkageName: "alloc_array", scope: !77
+!158 = !DILocation
+!159 = !DILocation
+!160 = !DILocation
+!161 = distinct !DISubprogram(name: "malloc_try", linkageName: "malloc_try", scope: !153, file: !153, line: 60, scopeLine: 60, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6)
+!162 = !DILocation
+!163 = !DILocation
+!164 = !DILocation
+!165 = distinct !DISubprogram(name: "[DEFAULT INIT]", linkageName: "[DEFAULT INIT]", scope: !153, file: !153, line: 28, scopeLine: 28, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6)
+!166 = !DILocation
+!167 = !DILocation
+!168 = !DILocalVariable(name: "i", scope: !169, file: !7, line: 25, type: !15, align: 4)
+!169 = distinct !DILexicalBlock(scope: !147, file: !144, line: 25, column: 2)
+!170 = !DILocation
+!171 = !DILocation
+!172 = !DILocation
+!173 = !DILocation
+!174 = !DILocalVariable(name: "arg", scope: !175, file: !7, line: 27, type: !43, align: 8)
+!175 = distinct !DILexicalBlock(scope: !169, file: !144, line: 26, column: 2)
+!176 = !DILocation
+!177 = !DILocation
+!178 = !DILocation
+!179 = !DILocalVariable(name: "len", scope: !175, file: !7, line: 28, type: !46, align: 8)
+!180 = !DILocation
+!181 = !DILocation
+!182 = !DILocation
+!183 = !DILocation
+!184 = !DILocation
+!185 = !DILocalVariable(name: "len", scope: !186, file: !7, line: 5, type: !46, align: 8)
+!186 = distinct !DISubprogram(name: "_strlen", linkageName: "_strlen", scope: !144, file: !144, line: 3, scopeLine: 3, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition, unit: !6, retainedNodes: !21)
+!187 = !DILocation
+!188 = !DILocation
+!189 = !DILocation
+!190 = !DILocation
+!191 = !DILocation
+!192 = distinct !DILexicalBlock(scope: !186, file: !144, line: 6, column: 2)
+!193 = !DILocation
+!194 = !DILocation
+!195 = !DILocation
+!196 = !DILocation
+!197 = !DILocation
+!198 = !DILocation
+!199 = !DILocation
+!200 = !DILocation
+!201 = distinct !DILexicalBlock(scope: !143, file: !144, line: 46, column: 8)
+!202 = !DILocation
\ No newline at end of file
diff --git a/test/test_suite7/debug_symbols/foreach.c3t b/test/test_suite7/debug_symbols/foreach.c3t
new file mode 100644
index 000000000..12b9cd963
--- /dev/null
+++ b/test/test_suite7/debug_symbols/foreach.c3t
@@ -0,0 +1,67 @@
+// #target: macos-x64
+// #debuginfo: yes
+module test;
+
+fn void foo(String[] args)
+{
+	foreach (a : args)
+	{
+		int x = a.len;
+	}
+}
+
+/* #expect: test.ll
+
+define void @test.foo(ptr %0, i64 %1) #0 !dbg !8 {
+entry:
+  %args = alloca %"char[][]", align 8
+  %.anon = alloca i64, align 8
+  %a = alloca %"char[]", align 8
+  %x = alloca i32, align 4
+  store ptr %0, ptr %args, align 8
+  %ptradd = getelementptr inbounds i8, ptr %args, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %args, i64 8, !dbg !28
+  %2 = load i64, ptr %ptradd1, align 8, !dbg !28
+  store i64 0, ptr %.anon, align 8, !dbg !28
+  br label %loop.cond, !dbg !28
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %3 = load i64, ptr %.anon, align 8, !dbg !28
+  %lt = icmp ult i64 %3, %2, !dbg !28
+  br i1 %lt, label %loop.body, label %loop.exit, !dbg !28
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load ptr, ptr %args, align 8, !dbg !34
+  %5 = load i64, ptr %.anon, align 8, !dbg !34
+  %ptroffset = getelementptr inbounds [16 x i8], ptr %4, i64 %5, !dbg !34
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %a, ptr align 8 %ptroffset, i32 16, i1 false), !dbg !34
+  %ptradd2 = getelementptr inbounds i8, ptr %a, i64 8, !dbg !39
+  %6 = load i64, ptr %ptradd2, align 8, !dbg !39
+  %trunc = trunc i64 %6 to i32, !dbg !39
+  store i32 %trunc, ptr %x, align 4, !dbg !39
+  %7 = load i64, ptr %.anon, align 8, !dbg !28
+  %addnuw = add nuw i64 %7, 1, !dbg !28
+  store i64 %addnuw, ptr %.anon, align 8, !dbg !28
+  br label %loop.cond, !dbg !28
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void, !dbg !28
+}
+
+!24 = !DIDerivedType(tag: DW_TAG_member, name: "len", scope: !11, baseType: !22, size: 64, align: 64, offset: 64)
+!25 = !{}
+!26 = !DILocalVariable(name: "args", arg: 1, scope: !8, file: !7, line: 3, type: !11)
+!27 = !DILocation(line: 3, column: 22, scope: !8)
+!28 = !DILocation(line: 5, column: 15, scope: !29)
+!29 = distinct !DILexicalBlock(scope: !8, file: !7, line: 5, column: 2)
+!30 = !DILocalVariable(name: ".temp", scope: !29, file: !7, line: 5, type: !22, align: 8)
+!31 = !DILocalVariable(name: "a", scope: !32, file: !7, line: 5, type: !15, align: 8)
+!32 = distinct !DILexicalBlock(scope: !29, file: !7, line: 6, column: 2)
+!33 = !DILocation(line: 5, column: 11, scope: !32)
+!34 = !DILocation(line: 5, column: 15, scope: !32)
+!35 = !DILocalVariable(name: "x", scope: !36, file: !7, line: 7, type: !37, align: 4)
+!36 = distinct !DILexicalBlock(scope: !32, file: !7, line: 6, column: 2)
+!37 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!38 = !DILocation(line: 7, column: 7, scope: !36)
+!39 = !DILocation(line: 7, column: 11, scope: !36)
\ No newline at end of file
diff --git a/test/test_suite7/defer/defer_and_expr_block.c3t b/test/test_suite7/defer/defer_and_expr_block.c3t
new file mode 100644
index 000000000..ad9c6c30a
--- /dev/null
+++ b/test/test_suite7/defer/defer_and_expr_block.c3t
@@ -0,0 +1,39 @@
+// #target: macos-x64
+// #deprecation: no
+module foo;
+extern fn void printf(char*,...);
+
+fn void main()
+{
+	defer printf("On exit\n");
+	{|
+		defer printf("Baz\n");
+		defer (void){|
+			defer printf("Hello!\n");
+			defer printf("1\n");
+			if (true) return 12;
+			defer printf("2\n");
+			return 34;
+		|};
+	|};
+	defer printf("On 2\n");
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %blockret = alloca i32, align 4
+  br label %if.then
+if.then:                                          ; preds = %entry
+  store i32 12, ptr %blockret, align 4
+  call void (ptr, ...) @printf(ptr @.str)
+  call void (ptr, ...) @printf(ptr @.str.1)
+  br label %expr_block.exit
+expr_block.exit:                                  ; preds = %if.then
+  call void (ptr, ...) @printf(ptr @.str.2)
+  call void (ptr, ...) @printf(ptr @.str.3)
+  call void (ptr, ...) @printf(ptr @.str.4)
+  ret void
+}
+
diff --git a/test/test_suite7/defer/defer_catch_direct_error.c3t b/test/test_suite7/defer/defer_catch_direct_error.c3t
new file mode 100644
index 000000000..98c0d06be
--- /dev/null
+++ b/test/test_suite7/defer/defer_catch_direct_error.c3t
@@ -0,0 +1,29 @@
+// #target: macos-x64
+module test;
+import std::io;
+fn void! example_fn()
+{
+    defer try {
+        int a = 1;
+    }
+
+    defer (catch err) {
+        anyfault f = err;
+    }
+    return io::IoError.FILE_NOT_FOUND?;
+}
+
+/* #expect: test.ll
+
+define i64 @test.example_fn() #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %err = alloca i64, align 8
+  %f = alloca i64, align 8
+  store i64 ptrtoint (ptr @"std.io.IoError$FILE_NOT_FOUND" to i64), ptr %reterr, align 8
+  %0 = load i64, ptr %reterr, align 8
+  store i64 %0, ptr %err, align 8
+  %1 = load i64, ptr %err, align 8
+  store i64 %1, ptr %f, align 8
+  ret i64 ptrtoint (ptr @"std.io.IoError$FILE_NOT_FOUND" to i64)
+}
diff --git a/test/test_suite7/defer/defer_catch_err.c3t b/test/test_suite7/defer/defer_catch_err.c3t
new file mode 100644
index 000000000..c13c2c084
--- /dev/null
+++ b/test/test_suite7/defer/defer_catch_err.c3t
@@ -0,0 +1,156 @@
+// #target: macos-x64
+// #deprecation: no
+module foo;
+import std::io;
+
+fault Test { FOO }
+
+fn void! test2()
+{
+	defer (catch err) {};
+	test()!;
+}
+
+fn int! test()
+{
+	int! z = {|
+		const ABC = 4;
+		int! x = SearchResult.MISSING?;
+		defer (catch err) io::printfn("Hello %s", err);
+		defer (catch err) { io::printfn("Bye %s", err); err = Test.FOO; }
+		return x;
+	|};
+	const ABC = 4;
+	int! x = SearchResult.MISSING?;
+	defer (catch err) io::printfn("Hello %s", err);
+	defer (catch err) { io::printfn("Bye %s", err); err = Test.FOO; }
+	return x;
+}
+
+fn void main()
+{
+	(void)test();
+}
+
+
+/* #expect: foo.ll
+
+define i64 @foo.test2() #0 {
+entry:
+  %error_var = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %err = alloca i64, align 8
+  %0 = call i64 @foo.test(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %0, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %2 = load i64, ptr %error_var, align 8
+  store i64 %2, ptr %err, align 8
+  %3 = load i64, ptr %error_var, align 8
+  ret i64 %3
+
+noerr_block:                                      ; preds = %after_check
+  ret i64 0
+}
+
+define i64 @foo.test(ptr %0) #0 {
+entry:
+  %z = alloca i32, align 4
+  %z.f = alloca i64, align 8
+  %blockret = alloca i32, align 4
+  %x = alloca i32, align 4
+  %x.f = alloca i64, align 8
+  %err = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %err3 = alloca i64, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %retparam5 = alloca i64, align 8
+  %x8 = alloca i32, align 4
+  %x.f9 = alloca i64, align 8
+  %reterr = alloca i64, align 8
+  %err14 = alloca i64, align 8
+  %varargslots15 = alloca [1 x %any], align 16
+  %retparam16 = alloca i64, align 8
+  %err19 = alloca i64, align 8
+  %varargslots20 = alloca [1 x %any], align 16
+  %retparam21 = alloca i64, align 8
+  store i64 ptrtoint (ptr @"std.core.builtin.SearchResult$MISSING" to i64), ptr %x.f, align 8
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %z.f, align 8
+  br label %opt_block_cleanup
+
+after_check:                                      ; preds = %entry
+  %2 = load i32, ptr %x, align 4
+  store i32 %2, ptr %blockret, align 4
+  br label %expr_block.exit
+
+opt_block_cleanup:                                ; preds = %assign_optional
+  %3 = load i64, ptr %z.f, align 8
+  store i64 %3, ptr %err, align 8
+  %4 = insertvalue %any undef, ptr %err, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %6 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 6, ptr %varargslots, i64 1)
+  store i64 ptrtoint (ptr @"foo.Test$FOO" to i64), ptr %err, align 8
+  %7 = load i64, ptr %z.f, align 8
+  store i64 %7, ptr %err3, align 8
+  %8 = insertvalue %any undef, ptr %err3, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %9, ptr %varargslots4, align 16
+  %10 = call i64 @std.io.printfn(ptr %retparam5, ptr @.str.2, i64 8, ptr %varargslots4, i64 1)
+  br label %after_assign
+
+expr_block.exit:                                  ; preds = %after_check
+  %11 = load i32, ptr %blockret, align 4
+  store i32 %11, ptr %z, align 4
+  store i64 0, ptr %z.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %expr_block.exit, %opt_block_cleanup
+  store i64 ptrtoint (ptr @"std.core.builtin.SearchResult$MISSING" to i64), ptr %x.f9, align 8
+  %optval10 = load i64, ptr %x.f9, align 8
+  %not_err11 = icmp eq i64 %optval10, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %12, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %after_assign
+  store i64 %optval10, ptr %reterr, align 8
+  br label %err_retblock
+
+after_check13:                                    ; preds = %after_assign
+  %13 = load i32, ptr %x8, align 4
+  store i32 %13, ptr %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %assign_optional12
+  %14 = load i64, ptr %reterr, align 8
+  store i64 %14, ptr %err14, align 8
+  %15 = insertvalue %any undef, ptr %err14, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %16, ptr %varargslots15, align 16
+  %17 = call i64 @std.io.printfn(ptr %retparam16, ptr @.str.4, i64 6, ptr %varargslots15, i64 1)
+  store i64 ptrtoint (ptr @"foo.Test$FOO" to i64), ptr %err14, align 8
+  %18 = load i64, ptr %reterr, align 8
+  store i64 %18, ptr %err19, align 8
+  %19 = insertvalue %any undef, ptr %err19, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %20, ptr %varargslots20, align 16
+  %21 = call i64 @std.io.printfn(ptr %retparam21, ptr @.str.5, i64 8, ptr %varargslots20, i64 1)
+  %22 = load i64, ptr %reterr, align 8
+  ret i64 %22
+}
\ No newline at end of file
diff --git a/test/test_suite7/defer/defer_catch_mix.c3t b/test/test_suite7/defer/defer_catch_mix.c3t
new file mode 100644
index 000000000..20402f275
--- /dev/null
+++ b/test/test_suite7/defer/defer_catch_mix.c3t
@@ -0,0 +1,358 @@
+// #target: macos-aarch64
+module test;
+import std::io;
+
+fn char[]! fileReader(String filename, char[] buffer)
+{
+    io::File! file = io::file::open(filename, "r");
+    defer (catch foo) io::printn("something on fail with the file");
+    defer io::printn("always close the file");
+
+    file.read(buffer)!;
+    return buffer;
+}
+
+fn void main()
+{
+    char[] !buffer = mem::new_array(char, 12);
+    buffer = fileReader("not_found.txt", buffer);
+    return;
+}
+
+/* #expect: test.ll
+
+define i64 @test.fileReader(ptr %0, [2 x i64] %1, [2 x i64] %2) #0 {
+entry:
+  %filename = alloca %"char[]", align 8
+  %buffer = alloca %"char[]", align 8
+  %file = alloca %File, align 8
+  %file.f = alloca i64, align 8
+  %retparam = alloca %File, align 8
+  %taddr = alloca %"char[]", align 8
+  %error_var = alloca i64, align 8
+  %retparam4 = alloca i64, align 8
+  %len = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %retparam10 = alloca i64, align 8
+  %taddr11 = alloca %"char[]", align 8
+  %error_var16 = alloca i64, align 8
+  %error_var22 = alloca i64, align 8
+  %foo = alloca i64, align 8
+  %len28 = alloca i64, align 8
+  %error_var29 = alloca i64, align 8
+  %retparam31 = alloca i64, align 8
+  %taddr32 = alloca %"char[]", align 8
+  %error_var38 = alloca i64, align 8
+  %error_var44 = alloca i64, align 8
+  %reterr = alloca i64, align 8
+  %len53 = alloca i64, align 8
+  %error_var54 = alloca i64, align 8
+  %retparam56 = alloca i64, align 8
+  %taddr57 = alloca %"char[]", align 8
+  %error_var63 = alloca i64, align 8
+  %error_var69 = alloca i64, align 8
+  store [2 x i64] %1, ptr %filename, align 8
+  store [2 x i64] %2, ptr %buffer, align 8
+  %3 = load [2 x i64], ptr %filename, align 8
+  store %"char[]" { ptr @.str, i64 1 }, ptr %taddr, align 8
+  %4 = load [2 x i64], ptr %taddr, align 8
+  %5 = call i64 @std.io.file.open(ptr %retparam, [2 x i64] %3, [2 x i64] %4)
+  %not_err = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %6, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %5, ptr %file.f, align 8
+  br label %after_assign
+after_check:                                      ; preds = %entry
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %file, ptr align 8 %retparam, i32 8, i1 false)
+  store i64 0, ptr %file.f, align 8
+  br label %after_assign
+after_assign:                                     ; preds = %after_check, %assign_optional
+  %optval = load i64, ptr %file.f, align 8
+  %not_err1 = icmp eq i64 %optval, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err1, i1 true)
+  br i1 %7, label %after_check3, label %assign_optional2
+assign_optional2:                                 ; preds = %after_assign
+  store i64 %optval, ptr %error_var, align 8
+  br label %guard_block
+after_check3:                                     ; preds = %after_assign
+  %8 = load [2 x i64], ptr %buffer, align 8
+  %9 = call i64 @std.io.File.read(ptr %retparam4, ptr %file, [2 x i64] %8)
+  %not_err5 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %10, label %after_check7, label %assign_optional6
+assign_optional6:                                 ; preds = %after_check3
+  store i64 %9, ptr %error_var, align 8
+  br label %guard_block
+after_check7:                                     ; preds = %after_check3
+  br label %noerr_block52
+guard_block:                                      ; preds = %assign_optional6, %assign_optional2
+  %11 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.1, i64 21 }, ptr %taddr11, align 8
+  %12 = load [2 x i64], ptr %taddr11, align 8
+  %13 = call i64 @std.io.File.write(ptr %retparam10, ptr %11, [2 x i64] %12)
+  %not_err12 = icmp eq i64 %13, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err12, i1 true)
+  br i1 %14, label %after_check14, label %assign_optional13
+assign_optional13:                                ; preds = %guard_block
+  store i64 %13, ptr %error_var8, align 8
+  br label %guard_block15
+after_check14:                                    ; preds = %guard_block
+  br label %noerr_block
+guard_block15:                                    ; preds = %assign_optional13
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check14
+  %15 = load i64, ptr %retparam10, align 8
+  store i64 %15, ptr %len, align 8
+  %16 = call i64 @std.io.File.write_byte(ptr %11, i8 10)
+  %not_err17 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err17, i1 true)
+  br i1 %17, label %after_check19, label %assign_optional18
+assign_optional18:                                ; preds = %noerr_block
+  store i64 %16, ptr %error_var16, align 8
+  br label %guard_block20
+after_check19:                                    ; preds = %noerr_block
+  br label %noerr_block21
+guard_block20:                                    ; preds = %assign_optional18
+  br label %voiderr
+noerr_block21:                                    ; preds = %after_check19
+  %18 = call i64 @std.io.File.flush(ptr %11)
+  %not_err23 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err23, i1 true)
+  br i1 %19, label %after_check25, label %assign_optional24
+assign_optional24:                                ; preds = %noerr_block21
+  store i64 %18, ptr %error_var22, align 8
+  br label %guard_block26
+after_check25:                                    ; preds = %noerr_block21
+  br label %noerr_block27
+guard_block26:                                    ; preds = %assign_optional24
+  br label %voiderr
+noerr_block27:                                    ; preds = %after_check25
+  %20 = load i64, ptr %len, align 8
+  %add = add i64 %20, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block27, %guard_block26, %guard_block20, %guard_block15
+  %21 = load i64, ptr %error_var, align 8
+  store i64 %21, ptr %foo, align 8
+  %22 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.2, i64 31 }, ptr %taddr32, align 8
+  %23 = load [2 x i64], ptr %taddr32, align 8
+  %24 = call i64 @std.io.File.write(ptr %retparam31, ptr %22, [2 x i64] %23)
+  %not_err33 = icmp eq i64 %24, 0
+  %25 = call i1 @llvm.expect.i1(i1 %not_err33, i1 true)
+  br i1 %25, label %after_check35, label %assign_optional34
+assign_optional34:                                ; preds = %voiderr
+  store i64 %24, ptr %error_var29, align 8
+  br label %guard_block36
+after_check35:                                    ; preds = %voiderr
+  br label %noerr_block37
+guard_block36:                                    ; preds = %assign_optional34
+  br label %voiderr51
+noerr_block37:                                    ; preds = %after_check35
+  %26 = load i64, ptr %retparam31, align 8
+  store i64 %26, ptr %len28, align 8
+  %27 = call i64 @std.io.File.write_byte(ptr %22, i8 10)
+  %not_err39 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err39, i1 true)
+  br i1 %28, label %after_check41, label %assign_optional40
+assign_optional40:                                ; preds = %noerr_block37
+  store i64 %27, ptr %error_var38, align 8
+  br label %guard_block42
+after_check41:                                    ; preds = %noerr_block37
+  br label %noerr_block43
+guard_block42:                                    ; preds = %assign_optional40
+  br label %voiderr51
+noerr_block43:                                    ; preds = %after_check41
+  %29 = call i64 @std.io.File.flush(ptr %22)
+  %not_err45 = icmp eq i64 %29, 0
+  %30 = call i1 @llvm.expect.i1(i1 %not_err45, i1 true)
+  br i1 %30, label %after_check47, label %assign_optional46
+assign_optional46:                                ; preds = %noerr_block43
+  store i64 %29, ptr %error_var44, align 8
+  br label %guard_block48
+after_check47:                                    ; preds = %noerr_block43
+  br label %noerr_block49
+guard_block48:                                    ; preds = %assign_optional46
+  br label %voiderr51
+noerr_block49:                                    ; preds = %after_check47
+  %31 = load i64, ptr %len28, align 8
+  %add50 = add i64 %31, 1
+  br label %voiderr51
+voiderr51:                                        ; preds = %noerr_block49, %guard_block48, %guard_block42, %guard_block36
+  %32 = load i64, ptr %error_var, align 8
+  ret i64 %32
+noerr_block52:                                    ; preds = %after_check7
+  %33 = load %"char[]", ptr %buffer, align 8
+  %34 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.3, i64 21 }, ptr %taddr57, align 8
+  %35 = load [2 x i64], ptr %taddr57, align 8
+  %36 = call i64 @std.io.File.write(ptr %retparam56, ptr %34, [2 x i64] %35)
+  %not_err58 = icmp eq i64 %36, 0
+  %37 = call i1 @llvm.expect.i1(i1 %not_err58, i1 true)
+  br i1 %37, label %after_check60, label %assign_optional59
+assign_optional59:                                ; preds = %noerr_block52
+  store i64 %36, ptr %error_var54, align 8
+  br label %guard_block61
+after_check60:                                    ; preds = %noerr_block52
+  br label %noerr_block62
+guard_block61:                                    ; preds = %assign_optional59
+  br label %voiderr76
+noerr_block62:                                    ; preds = %after_check60
+  %38 = load i64, ptr %retparam56, align 8
+  store i64 %38, ptr %len53, align 8
+  %39 = call i64 @std.io.File.write_byte(ptr %34, i8 10)
+  %not_err64 = icmp eq i64 %39, 0
+  %40 = call i1 @llvm.expect.i1(i1 %not_err64, i1 true)
+  br i1 %40, label %after_check66, label %assign_optional65
+assign_optional65:                                ; preds = %noerr_block62
+  store i64 %39, ptr %error_var63, align 8
+  br label %guard_block67
+after_check66:                                    ; preds = %noerr_block62
+  br label %noerr_block68
+guard_block67:                                    ; preds = %assign_optional65
+  br label %voiderr76
+noerr_block68:                                    ; preds = %after_check66
+  %41 = call i64 @std.io.File.flush(ptr %34)
+  %not_err70 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err70, i1 true)
+  br i1 %42, label %after_check72, label %assign_optional71
+assign_optional71:                                ; preds = %noerr_block68
+  store i64 %41, ptr %error_var69, align 8
+  br label %guard_block73
+after_check72:                                    ; preds = %noerr_block68
+  br label %noerr_block74
+guard_block73:                                    ; preds = %assign_optional71
+  br label %voiderr76
+noerr_block74:                                    ; preds = %after_check72
+  %43 = load i64, ptr %len53, align 8
+  %add75 = add i64 %43, 1
+  br label %voiderr76
+voiderr76:                                        ; preds = %noerr_block74, %guard_block73, %guard_block67, %guard_block61
+  store %"char[]" %33, ptr %0, align 8
+  ret i64 0
+}
+; Function Attrs: nounwind uwtable(sync)
+define void @test.main() #0 {
+entry:
+  %buffer = alloca %"char[]", align 8
+  %buffer.f = alloca i64, align 8
+  %allocator = alloca %any, align 8
+  %error_var = alloca i64, align 8
+  %allocator1 = alloca %any, align 8
+  %allocator2 = alloca %any, align 8
+  %.inlinecache = alloca ptr, align 8
+  %.cachedtype = alloca ptr, align 8
+  %taddr = alloca %"char[]", align 8
+  %taddr4 = alloca %"char[]", align 8
+  %taddr5 = alloca %"char[]", align 8
+  %retparam = alloca ptr, align 8
+  %taddr6 = alloca ptr, align 8
+  %taddr7 = alloca %"char[]", align 8
+  %taddr8 = alloca %"char[]", align 8
+  %taddr9 = alloca %"char[]", align 8
+  %varargslots = alloca [1 x %any], align 8
+  %taddr10 = alloca %"any[]", align 8
+  %retparam14 = alloca %"char[]", align 8
+  %taddr15 = alloca %"char[]", align 8
+  store ptr null, ptr %.cachedtype, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %allocator, ptr align 8 @std.core.mem.allocator.thread_allocator, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %allocator1, ptr align 8 %allocator, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %allocator2, ptr align 8 %allocator1, i32 16, i1 false)
+  br label %if.exit
+if.exit:                                          ; preds = %entry
+  %ptradd = getelementptr inbounds i8, ptr %allocator2, i64 8
+  %0 = load i64, ptr %ptradd, align 8
+  %1 = inttoptr i64 %0 to ptr
+  %type = load ptr, ptr %.cachedtype, align 8
+  %2 = icmp eq ptr %1, %type
+  br i1 %2, label %cache_hit, label %cache_miss
+cache_miss:                                       ; preds = %if.exit
+  %ptradd3 = getelementptr inbounds i8, ptr %1, i64 16
+  %3 = load ptr, ptr %ptradd3, align 8
+  %4 = call ptr @.dyn_search(ptr %3, ptr @"$sel.acquire")
+  store ptr %4, ptr %.inlinecache, align 8
+  store ptr %1, ptr %.cachedtype, align 8
+  br label %5
+cache_hit:                                        ; preds = %if.exit
+  %cache_hit_fn = load ptr, ptr %.inlinecache, align 8
+  br label %5
+5:                                                ; preds = %cache_hit, %cache_miss
+  %fn_phi = phi ptr [ %cache_hit_fn, %cache_hit ], [ %4, %cache_miss ]
+  %6 = icmp eq ptr %fn_phi, null
+  br i1 %6, label %missing_function, label %match
+missing_function:                                 ; preds = %5
+  store %"char[]" { ptr @.panic_msg, i64 44 }, ptr %taddr, align 8
+  %7 = load [2 x i64], ptr %taddr, align 8
+  store %"char[]" { ptr @.file, i64 16 }, ptr %taddr4, align 8
+  %8 = load [2 x i64], ptr %taddr4, align 8
+  store %"char[]" { ptr @.func, i64 4 }, ptr %taddr5, align 8
+  %9 = load [2 x i64], ptr %taddr5, align 8
+  %10 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %10([2 x i64] %7, [2 x i64] %8, [2 x i64] %9, i32 80)
+  unreachable
+match:                                            ; preds = %5
+  %11 = load ptr, ptr %allocator2, align 8
+  %12 = call i64 %fn_phi(ptr %retparam, ptr %11, i64 12, i32 1, i64 0)
+  %not_err = icmp eq i64 %12, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %13, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %match
+  store i64 %12, ptr %error_var, align 8
+  br label %panic_block
+after_check:                                      ; preds = %match
+  %14 = load ptr, ptr %retparam, align 8
+  store ptr %14, ptr %taddr6, align 8
+  %15 = load ptr, ptr %taddr6, align 8
+  %16 = insertvalue %"char[]" undef, ptr %15, 0
+  %17 = insertvalue %"char[]" %16, i64 12, 1
+  br label %noerr_block
+panic_block:                                      ; preds = %assign_optional
+  %18 = insertvalue %any undef, ptr %error_var, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %"char[]" { ptr @.panic_msg.4, i64 36 }, ptr %taddr7, align 8
+  %20 = load [2 x i64], ptr %taddr7, align 8
+  store %"char[]" { ptr @.file, i64 16 }, ptr %taddr8, align 8
+  %21 = load [2 x i64], ptr %taddr8, align 8
+  store %"char[]" { ptr @.func, i64 4 }, ptr %taddr9, align 8
+  %22 = load [2 x i64], ptr %taddr9, align 8
+  store %any %19, ptr %varargslots, align 8
+  %23 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %23, i64 1, 1
+  store %"any[]" %"$$temp", ptr %taddr10, align 8
+  %24 = load [2 x i64], ptr %taddr10, align 8
+  call void @std.core.builtin.panicf([2 x i64] %20, [2 x i64] %21, [2 x i64] %22, i32 244, [2 x i64] %24)
+  unreachable
+noerr_block:                                      ; preds = %after_check
+  store %"char[]" %17, ptr %buffer, align 8
+  store i64 0, ptr %buffer.f, align 8
+  %optval = load i64, ptr %buffer.f, align 8
+  %not_err11 = icmp eq i64 %optval, 0
+  %25 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %25, label %after_check13, label %assign_optional12
+assign_optional12:                                ; preds = %noerr_block
+  store i64 %optval, ptr %buffer.f, align 8
+  br label %after_assign
+after_check13:                                    ; preds = %noerr_block
+  store %"char[]" { ptr @.str.5, i64 13 }, ptr %taddr15, align 8
+  %26 = load [2 x i64], ptr %taddr15, align 8
+  %27 = load [2 x i64], ptr %buffer, align 8
+  %28 = call i64 @test.fileReader(ptr %retparam14, [2 x i64] %26, [2 x i64] %27)
+  %not_err16 = icmp eq i64 %28, 0
+  %29 = call i1 @llvm.expect.i1(i1 %not_err16, i1 true)
+  br i1 %29, label %after_check18, label %assign_optional17
+assign_optional17:                                ; preds = %after_check13
+  store i64 %28, ptr %buffer.f, align 8
+  br label %after_assign
+after_check18:                                    ; preds = %after_check13
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %buffer, ptr align 8 %retparam14, i32 16, i1 false)
+  store i64 0, ptr %buffer.f, align 8
+  br label %after_assign
+after_assign:                                     ; preds = %after_check18, %assign_optional17, %assign_optional12
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/defer/defer_catch_try.c3t b/test/test_suite7/defer/defer_catch_try.c3t
new file mode 100644
index 000000000..ff4c3e1ab
--- /dev/null
+++ b/test/test_suite7/defer/defer_catch_try.c3t
@@ -0,0 +1,148 @@
+// #target: macos-x64
+module test;
+extern fn void printf(char*, ...);
+
+fault Abc
+{
+	FOO
+}
+fn int! abc(int x)
+{
+	printf("Enter abc\n");
+	defer catch printf("Abc catch %d\n", x);
+	defer try printf("Abc try %d\n", x);
+	defer printf("Abc normal %d\n", x);
+	return x > 0 ? Abc.FOO? : 0;
+}
+fn int! bcd(int x)
+{
+	printf("Enter bcd\n");
+	for (int i = 0; i < 10; i++)
+	{
+		printf("bcd loop\n");
+		defer catch printf("Bcd %d catch %d\n", i, x);
+		defer try printf("Bcd %d try %d\n", i, x);
+		defer printf("Bcd %d normal %d\n", i, x);
+		if (i == 1) continue;
+		printf("bcd check\n");
+		if (i == 2) return x > 0 ? Abc.FOO? : 0;
+	}
+	return 0;
+}
+
+fn int main()
+{
+	(void)abc(3);
+	(void)abc(-1);
+	(void)bcd(3);
+	(void)bcd(-1);
+	return 1;
+}
+
+
+/* #expect: test.ll
+
+define i64 @test.abc(ptr %0, i32 %1) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  call void (ptr, ...) @printf(ptr @.str)
+  %gt = icmp sgt i32 %1, 0
+  br i1 %gt, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  store i64 ptrtoint (ptr @"test.Abc$FOO" to i64), ptr %reterr, align 8
+  br label %err_retblock
+
+cond.rhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %1)
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %1)
+  store i32 0, ptr %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.lhs
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %1)
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %1)
+  %2 = load i64, ptr %reterr, align 8
+  ret i64 %2
+}
+
+define i64 @test.bcd(ptr %0, i32 %1) #0 {
+entry:
+  %i = alloca i32, align 4
+  %reterr = alloca i64, align 8
+  %reterr4 = alloca i64, align 8
+  call void (ptr, ...) @printf(ptr @.str.5)
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.inc, %entry
+  %2 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %2, 10
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  call void (ptr, ...) @printf(ptr @.str.6)
+  %3 = load i32, ptr %i, align 4
+  %eq = icmp eq i32 %3, 1
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  %4 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.7, i32 %4, i32 %1)
+  %5 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.8, i32 %5, i32 %1)
+  br label %loop.inc
+
+if.exit:                                          ; preds = %loop.body
+  call void (ptr, ...) @printf(ptr @.str.9)
+  %6 = load i32, ptr %i, align 4
+  %eq1 = icmp eq i32 %6, 2
+  br i1 %eq1, label %if.then2, label %if.exit3
+
+if.then2:                                         ; preds = %if.exit
+  %gt = icmp sgt i32 %1, 0
+  br i1 %gt, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %if.then2
+  store i64 ptrtoint (ptr @"test.Abc$FOO" to i64), ptr %reterr, align 8
+  br label %err_retblock
+
+cond.rhs:                                         ; preds = %if.then2
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs
+  %7 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.10, i32 %7, i32 %1)
+  %8 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.11, i32 %8, i32 %1)
+  store i32 0, ptr %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.lhs
+  %9 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.12, i32 %9, i32 %1)
+  %10 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.13, i32 %10, i32 %1)
+  %11 = load i64, ptr %reterr, align 8
+  ret i64 %11
+
+if.exit3:                                         ; preds = %if.exit
+  %12 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.14, i32 %12, i32 %1)
+  %13 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.15, i32 %13, i32 %1)
+  br label %loop.inc
+
+loop.inc:                                         ; preds = %if.exit3, %if.then
+  %14 = load i32, ptr %i, align 4
+  %add = add i32 %14, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  store i32 0, ptr %0, align 4
+  ret i64 0
+}
diff --git a/test/test_suite7/defer/defer_nextcase.c3t b/test/test_suite7/defer/defer_nextcase.c3t
new file mode 100644
index 000000000..277dc6688
--- /dev/null
+++ b/test/test_suite7/defer/defer_nextcase.c3t
@@ -0,0 +1,182 @@
+// #target: macos-aarch64
+module test;
+import std;
+
+fn void print(String y)
+{
+	io::printn(y);
+}
+
+fn void foo(int x)
+{
+	print("---");
+	switch FOO: (x)
+	{
+		case 0:
+			defer print("0.0");
+			switch (x)
+			{
+				case 0:
+					defer print("0");
+					nextcase FOO: 3;
+			}
+			print("Err");
+		case 3:
+			x = 3;
+			defer print("3.0");
+			switch (x)
+			{
+				case 3:
+					defer print("3");
+					int j = 2;
+					nextcase FOO: j;
+			}
+			print("Err");
+		case 2:
+			x = 2;
+			defer print("2.0");
+			switch (x)
+			{
+				case 2:
+					defer print("2");
+					break FOO;
+			}
+			break;
+	}
+}
+fn int main()
+{
+	foo(0);
+	foo(2);
+	return 0;
+}
+/* #expect: test.ll
+
+define void @test.foo(i32 %0) #0 {
+entry:
+  %x = alloca i32, align 4
+  %taddr = alloca %"char[]", align 8
+  %switch = alloca i32, align 4
+  %switch1 = alloca i32, align 4
+  %taddr4 = alloca %"char[]", align 8
+  %taddr5 = alloca %"char[]", align 8
+  %taddr6 = alloca %"char[]", align 8
+  %taddr7 = alloca %"char[]", align 8
+  %switch9 = alloca i32, align 4
+  %j = alloca i32, align 4
+  %taddr12 = alloca %"char[]", align 8
+  %taddr13 = alloca %"char[]", align 8
+  %taddr15 = alloca %"char[]", align 8
+  %taddr16 = alloca %"char[]", align 8
+  %switch18 = alloca i32, align 4
+  %taddr21 = alloca %"char[]", align 8
+  %taddr22 = alloca %"char[]", align 8
+  %taddr24 = alloca %"char[]", align 8
+  store i32 %0, ptr %x, align 4
+  store %"char[]" { ptr @.str, i64 3 }, ptr %taddr, align 8
+  %1 = load [2 x i64], ptr %taddr, align 8
+  call void @test.print([2 x i64] %1)
+  %2 = load i32, ptr %x, align 4
+  store i32 %2, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %switch.case11, %entry
+  %3 = load i32, ptr %switch, align 4
+  switch i32 %3, label %switch.exit25 [
+    i32 0, label %switch.case
+    i32 3, label %switch.case8
+    i32 2, label %switch.case17
+  ]
+
+switch.case:                                      ; preds = %switch.entry
+  %4 = load i32, ptr %x, align 4
+  store i32 %4, ptr %switch1, align 4
+  br label %switch.entry2
+
+switch.entry2:                                    ; preds = %switch.case
+  %5 = load i32, ptr %switch1, align 4
+  switch i32 %5, label %switch.exit [
+    i32 0, label %switch.case3
+  ]
+
+switch.case3:                                     ; preds = %switch.entry2
+  store %"char[]" { ptr @.str.1, i64 1 }, ptr %taddr4, align 8
+  %6 = load [2 x i64], ptr %taddr4, align 8
+  call void @test.print([2 x i64] %6)
+  store %"char[]" { ptr @.str.2, i64 3 }, ptr %taddr5, align 8
+  %7 = load [2 x i64], ptr %taddr5, align 8
+  call void @test.print([2 x i64] %7)
+  br label %switch.case8
+
+switch.exit:                                      ; preds = %switch.entry2
+  store %"char[]" { ptr @.str.3, i64 3 }, ptr %taddr6, align 8
+  %8 = load [2 x i64], ptr %taddr6, align 8
+  call void @test.print([2 x i64] %8)
+  store %"char[]" { ptr @.str.4, i64 3 }, ptr %taddr7, align 8
+  %9 = load [2 x i64], ptr %taddr7, align 8
+  call void @test.print([2 x i64] %9)
+  br label %switch.exit25
+
+switch.case8:                                     ; preds = %switch.entry, %switch.case3
+  store i32 3, ptr %x, align 4
+  %10 = load i32, ptr %x, align 4
+  store i32 %10, ptr %switch9, align 4
+  br label %switch.entry10
+
+switch.entry10:                                   ; preds = %switch.case8
+  %11 = load i32, ptr %switch9, align 4
+  switch i32 %11, label %switch.exit14 [
+    i32 3, label %switch.case11
+  ]
+
+switch.case11:                                    ; preds = %switch.entry10
+  store i32 2, ptr %j, align 4
+  %12 = load i32, ptr %j, align 4
+  store i32 %12, ptr %switch, align 4
+  store %"char[]" { ptr @.str.5, i64 1 }, ptr %taddr12, align 8
+  %13 = load [2 x i64], ptr %taddr12, align 8
+  call void @test.print([2 x i64] %13)
+  store %"char[]" { ptr @.str.6, i64 3 }, ptr %taddr13, align 8
+  %14 = load [2 x i64], ptr %taddr13, align 8
+  call void @test.print([2 x i64] %14)
+  br label %switch.entry
+
+switch.exit14:                                    ; preds = %switch.entry10
+  store %"char[]" { ptr @.str.7, i64 3 }, ptr %taddr15, align 8
+  %15 = load [2 x i64], ptr %taddr15, align 8
+  call void @test.print([2 x i64] %15)
+  store %"char[]" { ptr @.str.8, i64 3 }, ptr %taddr16, align 8
+  %16 = load [2 x i64], ptr %taddr16, align 8
+  call void @test.print([2 x i64] %16)
+  br label %switch.exit25
+
+switch.case17:                                    ; preds = %switch.entry
+  store i32 2, ptr %x, align 4
+  %17 = load i32, ptr %x, align 4
+  store i32 %17, ptr %switch18, align 4
+  br label %switch.entry19
+
+switch.entry19:                                   ; preds = %switch.case17
+  %18 = load i32, ptr %switch18, align 4
+  switch i32 %18, label %switch.exit23 [
+    i32 2, label %switch.case20
+  ]
+
+switch.case20:                                    ; preds = %switch.entry19
+  store %"char[]" { ptr @.str.9, i64 1 }, ptr %taddr21, align 8
+  %19 = load [2 x i64], ptr %taddr21, align 8
+  call void @test.print([2 x i64] %19)
+  store %"char[]" { ptr @.str.10, i64 3 }, ptr %taddr22, align 8
+  %20 = load [2 x i64], ptr %taddr22, align 8
+  call void @test.print([2 x i64] %20)
+  br label %switch.exit25
+
+switch.exit23:                                    ; preds = %switch.entry19
+  store %"char[]" { ptr @.str.11, i64 3 }, ptr %taddr24, align 8
+  %21 = load [2 x i64], ptr %taddr24, align 8
+  call void @test.print([2 x i64] %21)
+  br label %switch.exit25
+
+switch.exit25:                                    ; preds = %switch.exit23, %switch.case20, %switch.exit14, %switch.exit, %switch.entry
+  ret void
+}
diff --git a/test/test_suite7/defer/defer_single_stmt.c3 b/test/test_suite7/defer/defer_single_stmt.c3
new file mode 100644
index 000000000..d6bb0cffc
--- /dev/null
+++ b/test/test_suite7/defer/defer_single_stmt.c3
@@ -0,0 +1,41 @@
+fn void test1()
+{
+	while (1) defer foo(); // #error: Looping over a raw 'defer'
+}
+
+fn void test1a()
+{
+	while (1) { defer foo(); }
+}
+
+fn void test2()
+{
+	if (1) defer foo(); // #error: An 'if' statement may not be followed by a raw 'defer'
+}
+
+fn void test2a()
+{
+	if (1) { defer foo(); }
+}
+
+fn void test3()
+{
+	defer defer foo(); // #error: A defer may not have a body consisting of a raw 'defer'
+}
+
+fn void test3a()
+{
+	defer { defer foo(); }
+}
+
+fn void test4()
+{
+	for (;;) defer foo(); // #error: Looping over a raw 'defer'
+}
+
+fn void test4a()
+{
+	for(;;) { defer foo(); }
+}
+
+fn void foo() {}
diff --git a/test/test_suite7/defer/defer_static_var.c3t b/test/test_suite7/defer/defer_static_var.c3t
new file mode 100644
index 000000000..d2f3c456d
--- /dev/null
+++ b/test/test_suite7/defer/defer_static_var.c3t
@@ -0,0 +1,175 @@
+// #target: macos-x64
+module foo;
+extern fn void printf(char*,...);
+
+fn int foo(int x)
+{
+	defer
+	{
+		static int y = 0;
+		y++;
+		printf("Here we go %d\n", y);
+	}
+	if (x > 0) return 2;
+	return x;
+}
+
+macro void foo2(int x)
+{
+	printf("->%d\n", x);
+	for (int i = 0; i < 100; i++)
+	{
+		defer
+        {
+            static int y = 0;
+        	y++;
+        	printf(">%d--%d\n", i, y);
+        }
+        if (i == x) break;
+        printf("--");
+	}
+}
+
+fn void main()
+{
+	foo(1);
+	foo(2);
+	foo(-2);
+	foo2(0);
+	foo2(1);
+	foo2(2);
+}
+
+/* #expect: foo.ll
+
+@foo.y = internal unnamed_addr global i32 0, align 4
+@main.y = internal unnamed_addr global i32 0, align 4
+@main.y.7 = internal unnamed_addr global i32 0, align 4
+@main.y.12 = internal unnamed_addr global i32 0, align 4
+
+define i32 @foo.foo(i32 %0) #0 {
+entry:
+  %gt = icmp sgt i32 %0, 0
+  br i1 %gt, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  %1 = load i32, ptr @foo.y, align 4
+  %add = add i32 %1, 1
+  store i32 %add, ptr @foo.y, align 4
+  %2 = load i32, ptr @foo.y, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %2)
+  ret i32 2
+if.exit:                                          ; preds = %entry
+  %3 = load i32, ptr @foo.y, align 4
+  %add1 = add i32 %3, 1
+  store i32 %add1, ptr @foo.y, align 4
+  %4 = load i32, ptr @foo.y, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %4)
+  ret i32 %0
+}
+
+define void @foo.main() #0 {
+entry:
+  %i = alloca i32, align 4
+  %i3 = alloca i32, align 4
+  %i14 = alloca i32, align 4
+  %0 = call i32 @foo.foo(i32 1)
+  %1 = call i32 @foo.foo(i32 2)
+  %2 = call i32 @foo.foo(i32 -2)
+  call void (ptr, ...) @printf(ptr @.str.2, i32 0)
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %if.exit, %entry
+  %3 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %3, 100
+  br i1 %lt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %4 = load i32, ptr %i, align 4
+  %eq = icmp eq i32 %4, 0
+  br i1 %eq, label %if.then, label %if.exit
+if.then:                                          ; preds = %loop.body
+  %5 = load i32, ptr @main.y, align 4
+  %add = add i32 %5, 1
+  store i32 %add, ptr @main.y, align 4
+  %6 = load i32, ptr %i, align 4
+  %7 = load i32, ptr @main.y, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %6, i32 %7)
+  br label %loop.exit
+if.exit:                                          ; preds = %loop.body
+  call void (ptr, ...) @printf(ptr @.str.4)
+  %8 = load i32, ptr @main.y, align 4
+  %add1 = add i32 %8, 1
+  store i32 %add1, ptr @main.y, align 4
+  %9 = load i32, ptr %i, align 4
+  %10 = load i32, ptr @main.y, align 4
+  call void (ptr, ...) @printf(ptr @.str.5, i32 %9, i32 %10)
+  %11 = load i32, ptr %i, align 4
+  %add2 = add i32 %11, 1
+  store i32 %add2, ptr %i, align 4
+  br label %loop.cond
+loop.exit:                                        ; preds = %if.then, %loop.cond
+  call void (ptr, ...) @printf(ptr @.str.6, i32 1)
+  store i32 0, ptr %i3, align 4
+  br label %loop.cond4
+loop.cond4:                                       ; preds = %if.exit10, %loop.exit
+  %12 = load i32, ptr %i3, align 4
+  %lt5 = icmp slt i32 %12, 100
+  br i1 %lt5, label %loop.body6, label %loop.exit13
+loop.body6:                                       ; preds = %loop.cond4
+  %13 = load i32, ptr %i3, align 4
+  %eq7 = icmp eq i32 %13, 1
+  br i1 %eq7, label %if.then8, label %if.exit10
+if.then8:                                         ; preds = %loop.body6
+  %14 = load i32, ptr @main.y.7, align 4
+  %add9 = add i32 %14, 1
+  store i32 %add9, ptr @main.y.7, align 4
+  %15 = load i32, ptr %i3, align 4
+  %16 = load i32, ptr @main.y.7, align 4
+  call void (ptr, ...) @printf(ptr @.str.8, i32 %15, i32 %16)
+  br label %loop.exit13
+if.exit10:                                        ; preds = %loop.body6
+  call void (ptr, ...) @printf(ptr @.str.9)
+  %17 = load i32, ptr @main.y.7, align 4
+  %add11 = add i32 %17, 1
+  store i32 %add11, ptr @main.y.7, align 4
+  %18 = load i32, ptr %i3, align 4
+  %19 = load i32, ptr @main.y.7, align 4
+  call void (ptr, ...) @printf(ptr @.str.10, i32 %18, i32 %19)
+  %20 = load i32, ptr %i3, align 4
+  %add12 = add i32 %20, 1
+  store i32 %add12, ptr %i3, align 4
+  br label %loop.cond4
+loop.exit13:                                      ; preds = %if.then8, %loop.cond4
+  call void (ptr, ...) @printf(ptr @.str.11, i32 2)
+  store i32 0, ptr %i14, align 4
+  br label %loop.cond15
+loop.cond15:                                      ; preds = %if.exit21, %loop.exit13
+  %21 = load i32, ptr %i14, align 4
+  %lt16 = icmp slt i32 %21, 100
+  br i1 %lt16, label %loop.body17, label %loop.exit24
+loop.body17:                                      ; preds = %loop.cond15
+  %22 = load i32, ptr %i14, align 4
+  %eq18 = icmp eq i32 %22, 2
+  br i1 %eq18, label %if.then19, label %if.exit21
+if.then19:                                        ; preds = %loop.body17
+  %23 = load i32, ptr @main.y.12, align 4
+  %add20 = add i32 %23, 1
+  store i32 %add20, ptr @main.y.12, align 4
+  %24 = load i32, ptr %i14, align 4
+  %25 = load i32, ptr @main.y.12, align 4
+  call void (ptr, ...) @printf(ptr @.str.13, i32 %24, i32 %25)
+  br label %loop.exit24
+if.exit21:                                        ; preds = %loop.body17
+  call void (ptr, ...) @printf(ptr @.str.14)
+  %26 = load i32, ptr @main.y.12, align 4
+  %add22 = add i32 %26, 1
+  store i32 %add22, ptr @main.y.12, align 4
+  %27 = load i32, ptr %i14, align 4
+  %28 = load i32, ptr @main.y.12, align 4
+  call void (ptr, ...) @printf(ptr @.str.15, i32 %27, i32 %28)
+  %29 = load i32, ptr %i14, align 4
+  %add23 = add i32 %29, 1
+  store i32 %add23, ptr %i14, align 4
+  br label %loop.cond15
+loop.exit24:                                      ; preds = %if.then19, %loop.cond15
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/defer/defer_try_catch.c3t b/test/test_suite7/defer/defer_try_catch.c3t
new file mode 100644
index 000000000..c3e1c2f61
--- /dev/null
+++ b/test/test_suite7/defer/defer_try_catch.c3t
@@ -0,0 +1,10 @@
+// Check that this work.
+import std::net;
+
+fn void main() {
+    Socket s;
+    defer {
+        char[1024] buf;
+        while (try s.read(&buf));
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/defer/defer_with_catch.c3t b/test/test_suite7/defer/defer_with_catch.c3t
new file mode 100644
index 000000000..88ed0c416
--- /dev/null
+++ b/test/test_suite7/defer/defer_with_catch.c3t
@@ -0,0 +1,88 @@
+// #target: macos-x64
+module test;
+
+fn void! test() {}
+fn void main()
+{
+	int a;
+	defer { if (catch e = test()) {} }
+	defer { if (catch b = test()) {} }
+	if (a > 0) return;
+}
+/* #expect: test.ll
+
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i64, align 8
+  %e = alloca i64, align 8
+  %b7 = alloca i64, align 8
+  %e14 = alloca i64, align 8
+  store i32 0, ptr %a, align 4
+  %0 = load i32, ptr %a, align 4
+  %gt = icmp sgt i32 %0, 0
+  br i1 %gt, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  br label %testblock
+testblock:                                        ; preds = %if.then
+  %1 = call i64 @test.test()
+  %not_err = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %testblock
+  store i64 %1, ptr %b, align 8
+  br label %end_block
+after_check:                                      ; preds = %testblock
+  store i64 0, ptr %b, align 8
+  br label %end_block
+end_block:                                        ; preds = %after_check, %assign_optional
+  %3 = load i64, ptr %b, align 8
+  %i2b = icmp ne i64 %3, 0
+  br label %testblock1
+testblock1:                                       ; preds = %end_block
+  %4 = call i64 @test.test()
+  %not_err2 = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %5, label %after_check4, label %assign_optional3
+assign_optional3:                                 ; preds = %testblock1
+  store i64 %4, ptr %e, align 8
+  br label %end_block5
+after_check4:                                     ; preds = %testblock1
+  store i64 0, ptr %e, align 8
+  br label %end_block5
+end_block5:                                       ; preds = %after_check4, %assign_optional3
+  %6 = load i64, ptr %e, align 8
+  %i2b6 = icmp ne i64 %6, 0
+  ret void
+if.exit:                                          ; preds = %entry
+  br label %testblock8
+testblock8:                                       ; preds = %if.exit
+  %7 = call i64 @test.test()
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %testblock8
+  store i64 %7, ptr %b7, align 8
+  br label %end_block12
+after_check11:                                    ; preds = %testblock8
+  store i64 0, ptr %b7, align 8
+  br label %end_block12
+end_block12:                                      ; preds = %after_check11, %assign_optional10
+  %9 = load i64, ptr %b7, align 8
+  %i2b13 = icmp ne i64 %9, 0
+  br label %testblock15
+testblock15:                                      ; preds = %end_block12
+  %10 = call i64 @test.test()
+  %not_err16 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err16, i1 true)
+  br i1 %11, label %after_check18, label %assign_optional17
+assign_optional17:                                ; preds = %testblock15
+  store i64 %10, ptr %e14, align 8
+  br label %end_block19
+after_check18:                                    ; preds = %testblock15
+  store i64 0, ptr %e14, align 8
+  br label %end_block19
+end_block19:                                      ; preds = %after_check18, %assign_optional17
+  %12 = load i64, ptr %e14, align 8
+  %i2b20 = icmp ne i64 %12, 0
+  ret void
+}
diff --git a/test/test_suite7/defer/defer_with_rethrow.c3 b/test/test_suite7/defer/defer_with_rethrow.c3
new file mode 100644
index 000000000..f107bc3be
--- /dev/null
+++ b/test/test_suite7/defer/defer_with_rethrow.c3
@@ -0,0 +1,15 @@
+// #deprecation: no
+fn int! foo()
+{ return 1; }
+
+
+fn int! bar()
+{
+	defer {
+		{|
+			foo()!;
+		|}!!;
+	}
+	defer foo()!; // #error: Rethrows are not allowed inside of defers.
+	return 1;
+}
\ No newline at end of file
diff --git a/test/test_suite7/defer/defer_with_return.c3 b/test/test_suite7/defer/defer_with_return.c3
new file mode 100644
index 000000000..a0ec5c368
--- /dev/null
+++ b/test/test_suite7/defer/defer_with_return.c3
@@ -0,0 +1,11 @@
+// #deprecation: no
+fn int! bar()
+{
+	defer {
+		(void){|
+			return 4;
+		|};
+	}
+	defer return 3; // #error: Return is not allowed inside of a defer
+	return 1;
+}
\ No newline at end of file
diff --git a/test/test_suite7/defer/defer_with_unwrapped.c3t b/test/test_suite7/defer/defer_with_unwrapped.c3t
new file mode 100644
index 000000000..365c86a9a
--- /dev/null
+++ b/test/test_suite7/defer/defer_with_unwrapped.c3t
@@ -0,0 +1,53 @@
+// #target: macos-x64
+module test;
+import std::io;
+// Issue 1982
+fn int main()
+{
+	defer
+	{
+		int! x = 1;
+		if (catch err = x) unreachable();
+		int y = x;
+	}
+	return 0;
+}
+/* #expect: test.ll
+
+define i32 @main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %x.f = alloca i64, align 8
+  %err = alloca i64, align 8
+  %y = alloca i32, align 4
+  store i32 1, ptr %x, align 4
+  store i64 0, ptr %x.f, align 8
+  br label %testblock
+
+testblock:                                        ; preds = %entry
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %optval, ptr %err, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check, %assign_optional
+  %1 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %1, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  unreachable
+
+if.exit:                                          ; preds = %end_block
+  %2 = load i32, ptr %x, align 4
+  store i32 %2, ptr %y, align 4
+  ret i32 0
+}
diff --git a/test/test_suite7/define/alias_typename.c3 b/test/test_suite7/define/alias_typename.c3
new file mode 100644
index 000000000..dd659fbbe
--- /dev/null
+++ b/test/test_suite7/define/alias_typename.c3
@@ -0,0 +1,2 @@
+def ShouldNotBeUppercase = FOO; // #error: A constant may not have a type name
+def ShouldNotBeUppercase2 = abc; // #error: An identifier may not be aliased
\ No newline at end of file
diff --git a/test/test_suite7/define/aliased_consts.c3t b/test/test_suite7/define/aliased_consts.c3t
new file mode 100644
index 000000000..943a690d2
--- /dev/null
+++ b/test/test_suite7/define/aliased_consts.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module foo;
+import std::io;
+import std::math;
+Matrix4f[2] data @export = {MATRIX4F_IDENTITY, MATRIX4F_IDENTITY};
+Matrix4f x = MATRIX4F_IDENTITY;
+fn int main()
+{
+	io::printfn("%s", x.m00);
+	return 0;
+}
+
+/* #expect: foo.ll
+
+@foo__data = local_unnamed_addr global <{ { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } }, { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } } }> <{ { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } } { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } { { float, [4 x float], float, [4 x float], float, [4 x float], float } { float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00 } } }, { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } } { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } { { float, [4 x float], float, [4 x float], float, [4 x float], float } { float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00 } } } }>, align 16
+@foo.x = local_unnamed_addr global { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } } { { { float, [4 x float], float, [4 x float], float, [4 x float], float } } { { float, [4 x float], float, [4 x float], float, [4 x float], float } { float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00, [4 x float] zeroinitializer, float 1.000000e+00 } } }, align 4
+
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  store %any { ptr @foo.x, i64 ptrtoint (ptr @"$ct.float" to i64) }, ptr %varargslots, align 16
+  %0 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  ret i32 0
+}
diff --git a/test/test_suite7/define/common.c3 b/test/test_suite7/define/common.c3
new file mode 100644
index 000000000..d510b562f
--- /dev/null
+++ b/test/test_suite7/define/common.c3
@@ -0,0 +1,15 @@
+module foo;
+
+// def <name> = <name>
+def standard_foo = __stdin;
+def someFunctionIntBool = someFunction(<int, bool>);
+def FooInt = Foo(<int>);
+def A_CONST_INT = A_CONST(<int>);
+
+def standard_foo(<int>) = ofke; // #error: Expected '='
+def fn foo = fef; // #error: A type, variable, constant or attribute name was expected here
+def feokfe = fn void(int); // #error: This looks like you're declaring a function type alias
+def Helo = helo; // #error: An identifier may not be aliased
+def Helo = OFKE; // #error: A constant may not have a type name alias
+def int = int; // #error: 'int' is a reserved keyword, try another name
+def main = foo; // #error: 'main' is reserved and cannot be used as an alias.
diff --git a/test/test_suite7/define/common2.c3 b/test/test_suite7/define/common2.c3
new file mode 100644
index 000000000..0e130c5ee
--- /dev/null
+++ b/test/test_suite7/define/common2.c3
@@ -0,0 +1,10 @@
+int ofek;
+const OFKEOK = 2;
+distinct Helo = int;
+fn void Helo.test(&self) {}
+
+def hupp = Helo.test;
+def AOFKE = ofek; // #error: An uppercase alias is expected
+def okfoe = OFKEOK; // #error: An alias starting with a lower
+def helo = Helo; // #error: To alias a type
+def HELO = Helo; // #error: To alias a type
diff --git a/test/test_suite7/define/define_name_errors.c3 b/test/test_suite7/define/define_name_errors.c3
new file mode 100644
index 000000000..cd1a3ea00
--- /dev/null
+++ b/test/test_suite7/define/define_name_errors.c3
@@ -0,0 +1,8 @@
+
+def Foo = int;
+
+def hello1 = int; // #error: To alias a type, the alias
+def hello2 = Foo; // #error: To alias a type, the alias
+
+def HELLO1 = int; // #error: To alias a type, the alias
+def HELLO2 = Foo; // #error: To alias a type, the alias
\ No newline at end of file
diff --git a/test/test_suite7/define/forbidden_defines.c3 b/test/test_suite7/define/forbidden_defines.c3
new file mode 100644
index 000000000..82c82f2df
--- /dev/null
+++ b/test/test_suite7/define/forbidden_defines.c3
@@ -0,0 +1,3 @@
+def Abc = int[?]; // #error: Inferred array types can only
+def Bcd = anyfault;
+def Efd = any;
diff --git a/test/test_suite7/define/test_at.c3 b/test/test_suite7/define/test_at.c3
new file mode 100644
index 000000000..071caf6cf
--- /dev/null
+++ b/test/test_suite7/define/test_at.c3
@@ -0,0 +1,24 @@
+module foo(<Type>);
+import std::io;
+
+macro @hello(Type thing) {
+    io::printfn("%d", $sizeof(thing));
+}
+fn void hello() {}
+
+module bar;
+
+import foo @public;
+
+distinct Int = int;
+macro Int.@test(self) {}
+
+def intHello = foo::@hello(<int>); // #error: An at-macro like
+def @intHello = foo::hello(<int>);
+def @intTest = Int.@test;
+def intTest = Int.@test;           // #error: An at-macro like
+
+
+fn void main(String[] args) {
+    @intHello(42);
+}
\ No newline at end of file
diff --git a/test/test_suite7/define/test_at_alias.c3 b/test/test_suite7/define/test_at_alias.c3
new file mode 100644
index 000000000..d3b2f7586
--- /dev/null
+++ b/test/test_suite7/define/test_at_alias.c3
@@ -0,0 +1,16 @@
+module foo(<Type>);
+import std::io;
+
+macro @hello(Type thing) {
+    io::printfn("%d", $sizeof(thing));
+}
+
+module bar;
+
+import foo @public;
+
+def @intHello = foo::@hello(<int>);
+
+fn void main(String[] args) {
+    @intHello(42);
+}
\ No newline at end of file
diff --git a/test/test_suite7/define/weak_alias_fails.c3 b/test/test_suite7/define/weak_alias_fails.c3
new file mode 100644
index 000000000..522da97e6
--- /dev/null
+++ b/test/test_suite7/define/weak_alias_fails.c3
@@ -0,0 +1,32 @@
+module abc;
+import std::math;
+def Vec2f = std::math::vector::Vec2f @weak;
+fn Vec2f foo(Vec2f a) { return a * 2; }
+
+module gog;
+import std::math;
+def Vec2f = std::math::vector::Vec2f;
+
+module deef;
+import gog;
+
+def Vec2f = gog::Vec2f @weak;
+fn Vec2f foo(Vec2f a) { return a * 2; }
+
+module test;
+import abc;
+import std::math;
+fn void test()
+{
+	Vec2f a;
+	abc::foo(a);
+}
+
+module test2;
+import abc;
+import deef;
+fn void test2()
+{
+	Vec2f a; // #error: abc::Vec2f or deef::Vec2f
+	abc::foo(a);
+}
\ No newline at end of file
diff --git a/test/test_suite7/define/weak_aliases.c3 b/test/test_suite7/define/weak_aliases.c3
new file mode 100644
index 000000000..591b8c029
--- /dev/null
+++ b/test/test_suite7/define/weak_aliases.c3
@@ -0,0 +1,32 @@
+module abc;
+import std::math;
+def Vec2f = std::math::vector::Vec2f @weak;
+fn Vec2f foo(Vec2f a) { return a * 2; }
+
+module gog;
+import std::math;
+def Vec2f = std::math::vector::Vec2f @weak;
+
+module deef;
+import gog;
+
+def Vec2f = gog::Vec2f @weak;
+fn Vec2f foo(Vec2f a) { return a * 2; }
+
+module test;
+import abc;
+import std::math;
+fn void test()
+{
+	Vec2f a;
+	abc::foo(a);
+}
+
+module test2;
+import abc;
+import deef;
+fn void test2()
+{
+	Vec2f a;
+	abc::foo(a);
+}
\ No newline at end of file
diff --git a/test/test_suite7/distinct/disntinct_add_fail.c3 b/test/test_suite7/distinct/disntinct_add_fail.c3
new file mode 100644
index 000000000..d90e42d62
--- /dev/null
+++ b/test/test_suite7/distinct/disntinct_add_fail.c3
@@ -0,0 +1,12 @@
+// #target: macos-x64
+module test;
+import std;
+
+fn void main()
+{
+	DString y;
+
+	y ^= 1; // #error: Expected an integer here
+	y += 1.0; // #error: A value of type 'DString'
+	y += 1; // #error: A value of type 'DString'
+}
diff --git a/test/test_suite7/distinct/distinct_add.c3 b/test/test_suite7/distinct/distinct_add.c3
new file mode 100644
index 000000000..2481e9e50
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_add.c3
@@ -0,0 +1,7 @@
+import std;
+fn void main()
+{
+	ZString a = "abc";
+	ZString b = a + 1;
+	io::printfn("%s", b);
+}
diff --git a/test/test_suite7/distinct/distinct_function.c3t b/test/test_suite7/distinct/distinct_function.c3t
new file mode 100644
index 000000000..f5669fc27
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_function.c3t
@@ -0,0 +1,33 @@
+module test;
+
+def FnA = fn void(int*);
+distinct FnB = FnA;
+distinct FnC = inline FnA;
+
+fn void func(int*) {}
+
+fn void main()
+{
+    FnA a = &func;
+    FnB b = (FnB)&func;
+    FnB b2 = &func;
+    FnB b3 = fn (int* x) {};
+    FnC c = &func;
+    c(null);
+}
+
+/* #expect: test.ll
+
+  %a = alloca ptr, align 8
+  %b = alloca ptr, align 8
+  %b2 = alloca ptr, align 8
+  %b3 = alloca ptr, align 8
+  %c = alloca ptr, align 8
+  store ptr @test.func, ptr %a, align 8
+  store ptr @test.func, ptr %b, align 8
+  store ptr @test.func, ptr %b2, align 8
+  store ptr @"test.main$lambda1", ptr %b3, align 8
+  store ptr @test.func, ptr %c, align 8
+  %0 = load ptr, ptr %c, align 8
+  call void %0(ptr null)
+  ret void
diff --git a/test/test_suite7/distinct/distinct_function_call.c3 b/test/test_suite7/distinct/distinct_function_call.c3
new file mode 100644
index 000000000..23e5eabc3
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_function_call.c3
@@ -0,0 +1,16 @@
+def Abc = fn void();
+distinct Foo = inline Abc;
+struct Bar
+{
+	inline Abc a;
+}
+fn void test()
+{
+}
+fn void main()
+{
+	Foo f = &test;
+	Bar b = { &test };
+	f();
+	b(); // #error: may be invoked
+}
\ No newline at end of file
diff --git a/test/test_suite7/distinct/distinct_inline_access.c3 b/test/test_suite7/distinct/distinct_inline_access.c3
new file mode 100644
index 000000000..617ff2c63
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_inline_access.c3
@@ -0,0 +1,32 @@
+module testing;
+import std::io;
+import foo;
+
+fn void main()
+{
+    FooInt foo;
+}
+
+distinct FooInt = inline Foo;
+
+struct Bar
+{
+    FooInt list;
+}
+
+fn void Bar.set(&self, int x)
+{
+    self.list.set(x);
+}
+
+module foo;
+
+struct Foo
+{
+    int x;
+}
+
+fn void Foo.set(&self, int x)
+{
+    self.x = x;
+}
\ No newline at end of file
diff --git a/test/test_suite7/distinct/distinct_invalid.c3 b/test/test_suite7/distinct/distinct_invalid.c3
new file mode 100644
index 000000000..0e5759dfb
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_invalid.c3
@@ -0,0 +1,12 @@
+fault Error
+{
+	ABC
+}
+
+distinct Foo1 = Error;
+
+distinct Foo3 = void;
+
+distinct Foo4 = typeid;
+
+distinct Foo = fn void(Foo** x); // #error: cannot define a new function type
\ No newline at end of file
diff --git a/test/test_suite7/distinct/distinct_max.c3t b/test/test_suite7/distinct/distinct_max.c3t
new file mode 100644
index 000000000..cd48b09e0
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_max.c3t
@@ -0,0 +1,8 @@
+module test;
+distinct Time = long;
+
+fn void main(String[] args)
+{
+	Time.min;
+	Time.max;
+}
\ No newline at end of file
diff --git a/test/test_suite7/distinct/distinct_shift.c3t b/test/test_suite7/distinct/distinct_shift.c3t
new file mode 100644
index 000000000..61fdaeb5a
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_shift.c3t
@@ -0,0 +1,47 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+const ODD_PHI16 @local = 0x9e37;
+
+distinct Lcg16_8 = ushort;
+
+fn void Lcg16_8.seed(Lcg16_8* lcg, char[2] seed)
+{
+    *lcg = bitcast(seed, Lcg16_8);
+}
+
+fn char Lcg16_8.next(Lcg16_8* lcg)
+{
+    Lcg16_8 s = *lcg;
+    char result = (char)(s >> 8);
+    *lcg = s * 0x915d + ODD_PHI16;
+    return result;
+}
+
+fn void main()
+{
+    Lcg16_8 s;
+    io::printfn("Point: %d", s.next());
+}
+
+/* #expect: test.ll
+
+define zeroext i8 @test.Lcg16_8.next(ptr %0) #0 {
+entry:
+  %s = alloca i16, align 2
+  %result = alloca i8, align 1
+  %1 = load i16, ptr %0, align 2
+  store i16 %1, ptr %s, align 2
+  %2 = load i16, ptr %s, align 2
+  %lshr = lshr i16 %2, 8
+  %3 = freeze i16 %lshr
+  %trunc = trunc i16 %3 to i8
+  store i8 %trunc, ptr %result, align 1
+  %4 = load i16, ptr %s, align 2
+  %mul = mul i16 %4, -28323
+  %add = add i16 %mul, -25033
+  store i16 %add, ptr %0, align 2
+  %5 = load i8, ptr %result, align 1
+  ret i8 %5
+}
diff --git a/test/test_suite7/distinct/distinct_slicing.c3 b/test/test_suite7/distinct/distinct_slicing.c3
new file mode 100644
index 000000000..0bc172857
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_slicing.c3
@@ -0,0 +1,10 @@
+distinct Foo = double[];
+
+fn void main()
+{
+	Foo x = { 1.0, 4.5, 7.123 };
+	Foo y = x;
+	Foo z = x[0:2];
+	Foo w = x[1..2];
+	double[] yekf = x[1..1]; // #error: 'Foo' to 'double[]'
+}
diff --git a/test/test_suite7/distinct/distinct_struct.c3 b/test/test_suite7/distinct/distinct_struct.c3
new file mode 100644
index 000000000..11a18d1f5
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_struct.c3
@@ -0,0 +1,28 @@
+
+struct Struct
+{
+    int x;
+    double y;
+}
+
+distinct Foo = Struct;
+
+struct Struct2
+{
+    Foo f;
+    int d;
+    struct bar
+    {
+        Foo x;
+    }
+}
+Foo f = { 1, 1.0 };
+
+fn void test(int x)
+{
+    Struct s = { 1, 2.0 };
+    Foo f2 = (Foo)(s);
+    Foo f3 = { .x = 1 };
+    Struct2 s2 = { .f = { 1, 2.0 } };
+    Struct2 s3 = { .bar.x.y = 3.0 };
+}
\ No newline at end of file
diff --git a/test/test_suite7/distinct/distinct_struct_array.c3 b/test/test_suite7/distinct/distinct_struct_array.c3
new file mode 100644
index 000000000..a8b1dee82
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_struct_array.c3
@@ -0,0 +1,19 @@
+module test;
+
+distinct Foo = int;
+
+struct Struct
+{
+    Foo x;
+    int y;
+}
+
+distinct Struct2 = Struct;
+distinct StructArr = Struct2[3];
+
+fn void test(int x)
+{
+    StructArr z = { { .x = 1 }, { .y = x }, { 1, 2 }};
+    usz len = z.len;
+    Foo zz = z[2].x;
+}
diff --git a/test/test_suite7/distinct/distinct_sub.c3t b/test/test_suite7/distinct/distinct_sub.c3t
new file mode 100644
index 000000000..3e15c283c
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_sub.c3t
@@ -0,0 +1,58 @@
+distinct Foo = uint;
+
+macro @test($abc)
+{
+    return 1u << ($abc - 1);
+}
+
+const Foo TEST = 5;
+const Foo TEST_1 = @test(TEST);
+
+macro @test2($abc)
+{
+    return 1u << ($abc + 1);
+}
+
+const Foo TEST_2 = @test2(TEST);
+
+macro @test3($abc)
+{
+    return 1u << ($abc * 2);
+}
+
+const Foo TEST_3 = @test3(TEST);
+
+macro @test4($abc)
+{
+    return 1u << ($abc / 2);
+}
+
+const Foo TEST_4 = @test4(TEST);
+
+macro @test5($abc)
+{
+    return 1u << ($abc % 2);
+}
+
+const Foo TEST_5 = @test5(TEST);
+
+macro @test6($abc)
+{
+    return 1u << ($abc >> 1);
+}
+
+const Foo TEST_6 = @test6(TEST);
+
+macro @test7($abc)
+{
+    return 1u << ($abc >> 1);
+}
+
+const Foo TEST_7 = @test7(TEST);
+
+macro @test8($abc)
+{
+    return 1u << ($abc ^ 1);
+}
+
+const Foo TEST_8 = @test8(TEST);
diff --git a/test/test_suite7/distinct/distinct_union.c3 b/test/test_suite7/distinct/distinct_union.c3
new file mode 100644
index 000000000..855d509ff
--- /dev/null
+++ b/test/test_suite7/distinct/distinct_union.c3
@@ -0,0 +1,34 @@
+module test;
+
+union Union
+{
+    int x;
+    double y;
+}
+
+distinct Foo = Union;
+
+union Union2
+{
+    Foo f;
+    int d;
+    struct bar
+    {
+        Foo x;
+    }
+}
+Foo f = { .x = 1 };
+
+distinct Union3 = Union2;
+
+distinct UnionArr = Union3[3];
+
+fn void test(int x)
+{
+    Union s = { .y = 2.0 };
+    Foo f2 = (Foo)(s);
+    Foo f3 = { .x = 1 };
+    Union2 s2 = { .f = { .y = 1 } };
+    Union2 s3 = { .bar.x.y = 3.0 };
+    UnionArr a = { [0].bar.x.x = 100 };
+}
diff --git a/test/test_suite7/distinct/test_errors.c3 b/test/test_suite7/distinct/test_errors.c3
new file mode 100644
index 000000000..c98887c28
--- /dev/null
+++ b/test/test_suite7/distinct/test_errors.c3
@@ -0,0 +1,11 @@
+module test;
+
+distinct Int2 = int;
+
+fn void test()
+{
+    Int2 a = 1;
+    a = a + 1;
+    int b;
+    a = b; // #error: 'Int2'
+}
\ No newline at end of file
diff --git a/test/test_suite7/distinct/test_ops_on_int.c3 b/test/test_suite7/distinct/test_ops_on_int.c3
new file mode 100644
index 000000000..4013b7c92
--- /dev/null
+++ b/test/test_suite7/distinct/test_ops_on_int.c3
@@ -0,0 +1,29 @@
+module test;
+
+distinct Foo = int;
+
+fn int test1()
+{
+    Foo x = 1;
+    x += 2;
+    Foo y = 3;
+    y = x + y;
+    int z = 4;
+    y += (Foo)(z);
+    y = y << z;
+    y = y >> z;
+    y = y + y;
+    y = y - y;
+    y = y * y;
+    y = y / y;
+    y = y & y;
+    y = y ^ y;
+    y = y | y;
+    bool a1 = y != y;
+    bool a2 = y < y;
+    bool a3 = y <= y;
+    bool a4 = y == y;
+    y = y == 1 ? 1 : y;
+    y = y < (y + 1) ? 1 : y;
+    return (int)(y);
+}
diff --git a/test/test_suite7/distinct/test_ops_on_struct.c3 b/test/test_suite7/distinct/test_ops_on_struct.c3
new file mode 100644
index 000000000..ddd8255da
--- /dev/null
+++ b/test/test_suite7/distinct/test_ops_on_struct.c3
@@ -0,0 +1,24 @@
+module test;
+
+struct Struct
+{
+    int x;
+    double y;
+}
+
+distinct Foo = Struct;
+
+struct Struct2
+{
+    Foo f;
+    int d;
+}
+Foo f = { 1, 1.0 };
+
+fn void test(int x)
+{
+    Struct s = { 1, 2.0 };
+    Foo f2 = (Foo)(s);
+    Foo f3 = { .x = 1 };
+    Struct2 s2 = { .f = { 1, 2.0 } };
+}
\ No newline at end of file
diff --git a/test/test_suite7/dynamic/any_cast.c3 b/test/test_suite7/dynamic/any_cast.c3
new file mode 100644
index 000000000..85727eac8
--- /dev/null
+++ b/test/test_suite7/dynamic/any_cast.c3
@@ -0,0 +1,22 @@
+module test;
+
+interface Abc : Def
+{}
+
+interface Def
+{}
+
+fn void! test()
+{
+	any x;
+	Abc d = x; // #error: cannot implicitly be converted to 'Abc'
+}
+
+
+fn void! test2()
+{
+	Abc x;
+	any d = x;
+	Def e = x;
+	x = e; // #error: is not a parent interface of 'Def'
+}
diff --git a/test/test_suite7/dynamic/duplicate_definition.c3 b/test/test_suite7/dynamic/duplicate_definition.c3
new file mode 100644
index 000000000..5d0e5583e
--- /dev/null
+++ b/test/test_suite7/dynamic/duplicate_definition.c3
@@ -0,0 +1,12 @@
+module test;
+
+interface Abc
+{
+	fn void abc();
+	fn void abc(); // #error: Duplicate definition
+}
+fn void main()
+{
+	Abc* g;
+	g.abc();
+}
diff --git a/test/test_suite7/dynamic/dynamic_inherit_deep.c3t b/test/test_suite7/dynamic/dynamic_inherit_deep.c3t
new file mode 100644
index 000000000..7c2890401
--- /dev/null
+++ b/test/test_suite7/dynamic/dynamic_inherit_deep.c3t
@@ -0,0 +1,18 @@
+module abc;
+interface AstNode {
+    fn void free();
+    fn double get_span();
+    fn void dump(int depth);
+}
+
+interface AstBodyStatement : AstNode {
+}
+
+interface AstExpression : /* AstNode,*/ AstBodyStatement {
+}
+
+fn void main()
+{
+	AstExpression a = null;
+	a.dump(100);
+}
\ No newline at end of file
diff --git a/test/test_suite7/dynamic/dynamic_mismatch.c3 b/test/test_suite7/dynamic/dynamic_mismatch.c3
new file mode 100644
index 000000000..b259a872a
--- /dev/null
+++ b/test/test_suite7/dynamic/dynamic_mismatch.c3
@@ -0,0 +1,25 @@
+interface TestProto
+{
+	fn int test(int ag);
+}
+
+
+struct Foo (TestProto) { int a; }
+
+fn int! Foo.test(Foo* f) @dynamic { return 1; } // #error: The prototype method has a return type 'int'
+
+struct Foo1 (TestProto) { int a; }
+
+fn int Foo1.test(Foo1* f, int a) @dynamic { return 1; }
+
+struct Foo2 (TestProto) { int a; }
+
+fn int Foo2.test(Foo2* f) @dynamic { return 1; } // #error: This function is missing parameters, 2
+
+struct Foo3 (TestProto) { int a; }
+
+fn int Foo3.test(Foo3* f, double a) @dynamic { return 1; } // #error: The prototype argument has type 'int'
+
+struct Foo4 (TestProto) { int a; }
+
+fn int Foo4.test(Foo4* f, double a, int x) @dynamic { return 1; } // #error: This function has too many parameters
diff --git a/test/test_suite7/dynamic/dynamic_tracing.c3t b/test/test_suite7/dynamic/dynamic_tracing.c3t
new file mode 100644
index 000000000..c1f0482e1
--- /dev/null
+++ b/test/test_suite7/dynamic/dynamic_tracing.c3t
@@ -0,0 +1,66 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+interface IFoo {
+  fn void foo();
+}
+
+struct Aa(IFoo) {
+    int dummy;
+}
+
+fn void Aa.foo(&this) @dynamic {
+    io::printfn("@dynamic: Aa.foo");
+}
+
+struct Ba(IFoo) {
+    int dummy;
+}
+
+fn void Ba.foo(&this) @dynamic {
+    io::printfn("@dynamic: Ba.foo");
+}
+
+struct Ca(IFoo) {
+    int dummy;
+}
+
+fn void Ca.foo(&this) @dynamic {
+    io::printfn("@dynamic: Ca.foo");
+}
+
+
+macro @patch(IFoo *x, $Type) {
+    usz *y = (usz *) x;
+    y[1] = (usz) $Type.typeid;
+}
+
+fn void main() {
+    IFoo foo = @clone((Ba){});
+
+    io::printfn("Aa.typeid: %p, Ba.typeid: %p", (usz) Aa.typeid, (usz) Ba.typeid);
+    io::printfn("foo.type: %p", (usz) foo.type);
+
+	@patch(&foo, Aa);
+
+    io::printfn("foo.type: %p", (usz) foo.type);
+
+    foo.foo();
+
+	foo = (IFoo)any_make(foo.ptr, Ca.typeid);
+
+    io::printfn("foo.type: %p", (usz) foo.type);
+
+    foo.foo();
+
+}
+
+/* #expect: test.ll
+
+@"$ct.test.Aa" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Ba" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Ca" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$sel.foo" = linkonce_odr constant [4 x i8] c"foo\00", align 1
+@"$c3_dynamic" = internal global [3 x { ptr, ptr, i64 }] [{ ptr, ptr, i64 } { ptr @test.Aa.foo, ptr @"$sel.foo", i64 ptrtoint (ptr @"$ct.test.Aa" to i64) }, { ptr, ptr, i64 } { ptr @test.Ba.foo, ptr @"$sel.foo", i64 ptrtoint (ptr @"$ct.test.Ba" to i64) }, { ptr, ptr, i64 } { ptr @test.Ca.foo, ptr @"$sel.foo", i64 ptrtoint (ptr @"$ct.test.Ca" to i64) }], section "__DATA,__c3_dynamic", align 8
+@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 1, ptr @.c3_dynamic_retain, ptr null }]
diff --git a/test/test_suite7/dynamic/inherit_linux.c3t b/test/test_suite7/dynamic/inherit_linux.c3t
new file mode 100644
index 000000000..3ce011da0
--- /dev/null
+++ b/test/test_suite7/dynamic/inherit_linux.c3t
@@ -0,0 +1,197 @@
+// #target: linux-x64
+module inherit;
+import std::io;
+
+interface Base
+{
+	fn void tesT();
+}
+
+interface TestProto2 : Base
+{
+}
+
+interface TestProto : Base
+{
+	fn void hello();
+}
+
+fn void Test.tesT(&self) @dynamic
+{
+}
+
+fn void Test.hello(&self) @dynamic
+{
+}
+
+struct Test (TestProto, TestProto2)
+{
+	void* abc;
+}
+
+fn void main()
+{
+	TestProto z = mem::alloc(Test);
+	z.tesT();
+	Base w = z;
+	w.tesT();
+}
+
+/* #expect: inherit.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%any = type { ptr, i64 }
+$.dyn_search = comdat any
+$"$ct.inherit.Test" = comdat any
+$"$sel.tesT" = comdat any
+$"$sel.hello" = comdat any
+@"$ct.inherit.Test" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, comdat, align 8
+@"$sel.tesT" = linkonce_odr constant [5 x i8] c"tesT\00", comdat, align 1
+@.panic_msg = internal constant [42 x i8] c"No method 'tesT' could be found on target\00", align 1
+@.func = internal constant [5 x i8] c"main\00", align 1
+@std.core.builtin.panic = extern_weak global ptr, align 8
+@"$ct.dyn.inherit.Test.tesT" = weak global { ptr, ptr, ptr } { ptr @inherit.Test.tesT, ptr @"$sel.tesT", ptr inttoptr (i64 -1 to ptr) }, comdat, align 8
+@"$ct.dyn.inherit.Test.hello" = weak global { ptr, ptr, ptr } { ptr @inherit.Test.hello, ptr @"$sel.hello", ptr inttoptr (i64 -1 to ptr) }, comdat, align 8
+@"$sel.hello" = linkonce_odr constant [6 x i8] c"hello\00", comdat, align 1
+@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 1, ptr @.c3_dynamic_register, ptr null }]
+define void @inherit.Test.tesT(ptr %0) #0 {
+entry:
+  ret void
+}
+define void @inherit.Test.hello(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @inherit.main() #0 {
+entry:
+  %z = alloca %any, align 8
+  %.inlinecache = alloca ptr, align 8
+  %.cachedtype = alloca ptr, align 8
+  %w = alloca %any, align 8
+  %.inlinecache3 = alloca ptr, align 8
+  %.cachedtype4 = alloca ptr, align 8
+  store ptr null, ptr %.cachedtype4, align 8
+  store ptr null, ptr %.cachedtype, align 8
+  %0 = call ptr @std.core.mem.malloc(i64 8) #1
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.inherit.Test" to i64), 1
+  store %any %2, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  %3 = load i64, ptr %ptradd, align 8
+  %4 = inttoptr i64 %3 to ptr
+  %type = load ptr, ptr %.cachedtype, align 8
+  %5 = icmp eq ptr %4, %type
+  br i1 %5, label %cache_hit, label %cache_miss
+cache_miss:                                       ; preds = %entry
+  %ptradd1 = getelementptr inbounds i8, ptr %4, i64 16
+  %6 = load ptr, ptr %ptradd1, align 8
+  %7 = call ptr @.dyn_search(ptr %6, ptr @"$sel.tesT")
+  store ptr %7, ptr %.inlinecache, align 8
+  store ptr %4, ptr %.cachedtype, align 8
+  br label %8
+cache_hit:                                        ; preds = %entry
+  %cache_hit_fn = load ptr, ptr %.inlinecache, align 8
+  br label %8
+8:                                                ; preds = %cache_hit, %cache_miss
+  %fn_phi = phi ptr [ %cache_hit_fn, %cache_hit ], [ %7, %cache_miss ]
+  %9 = icmp eq ptr %fn_phi, null
+  br i1 %9, label %missing_function, label %match
+missing_function:                                 ; preds = %8
+  %10 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %10(ptr @.panic_msg, i64 41, ptr @.file
+  unreachable
+match:                                            ; preds = %8
+  %11 = load ptr, ptr %z, align 8
+  call void %fn_phi(ptr %11)
+  %12 = load %any, ptr %z, align 8
+  store %any %12, ptr %w, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %w, i64 8
+  %13 = load i64, ptr %ptradd2, align 8
+  %14 = inttoptr i64 %13 to ptr
+  %type5 = load ptr, ptr %.cachedtype4, align 8
+  %15 = icmp eq ptr %14, %type5
+  br i1 %15, label %cache_hit8, label %cache_miss6
+cache_miss6:                                      ; preds = %match
+  %ptradd7 = getelementptr inbounds i8, ptr %14, i64 16
+  %16 = load ptr, ptr %ptradd7, align 8
+  %17 = call ptr @.dyn_search(ptr %16, ptr @"$sel.tesT")
+  store ptr %17, ptr %.inlinecache3, align 8
+  store ptr %14, ptr %.cachedtype4, align 8
+  br label %18
+cache_hit8:                                       ; preds = %match
+  %cache_hit_fn9 = load ptr, ptr %.inlinecache3, align 8
+  br label %18
+18:                                               ; preds = %cache_hit8, %cache_miss6
+  %fn_phi10 = phi ptr [ %cache_hit_fn9, %cache_hit8 ], [ %17, %cache_miss6 ]
+  %19 = icmp eq ptr %fn_phi10, null
+  br i1 %19, label %missing_function11, label %match12
+missing_function11:                               ; preds = %18
+  %20 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %20(ptr @.panic_msg, i64 41, ptr @.file, i64 16, ptr @.func, i64 4, i32 36)
+  unreachable
+match12:                                          ; preds = %18
+  %21 = load ptr, ptr %w, align 8
+  call void %fn_phi10(ptr %21)
+  ret void
+}
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @inherit.main()
+  ret i32 0
+}
+
+define weak ptr @.dyn_search(ptr %0, ptr %1) unnamed_addr comdat {
+entry:
+  br label %check
+check:                                            ; preds = %no_match, %entry
+  %2 = phi ptr [ %0, %entry ], [ %9, %no_match ]
+  %3 = icmp eq ptr %2, null
+  br i1 %3, label %missing_function, label %compare
+missing_function:                                 ; preds = %check
+  ret ptr null
+compare:                                          ; preds = %check
+  %4 = getelementptr inbounds
+  %5 = load ptr, ptr %4, align 8
+  %6 = icmp eq ptr %5, %1
+  br i1 %6, label %match, label %no_match
+match:                                            ; preds = %compare
+  %7 = load ptr, ptr %2, align 8
+  ret ptr %7
+no_match:                                         ; preds = %compare
+  %8 = getelementptr inbounds
+  %9 = load ptr, ptr %8, align 8
+  br label %check
+}
+define internal void @.c3_dynamic_register() align 8 {
+entry:
+  %next_val = load ptr, ptr getelementptr inbounds
+  %0 = icmp eq ptr %next_val, inttoptr (i64 -1 to ptr)
+  br i1 %0, label %dtable_check, label %dtable_skip
+dtable_check:                                     ; preds = %dtable_check, %entry
+  %dtable_ref = phi ptr [ getelementptr inbounds
+  %dtable_ptr = load ptr, ptr %dtable_ref, align 8
+  %1 = icmp eq ptr %dtable_ptr, null
+  %next_dtable_ref = getelementptr inbounds
+  br i1 %1, label %dtable_found, label %dtable_check
+dtable_found:                                     ; preds = %dtable_check
+  store ptr @"$ct.dyn.inherit.Test.tesT", ptr %dtable_ref, align 8
+  store ptr null, ptr getelementptr inbounds
+  br label %dtable_skip
+dtable_skip:                                      ; preds = %dtable_found, %entry
+  %next_val1 = load ptr, ptr getelementptr inbounds
+  %2 = icmp eq ptr %next_val1, inttoptr (i64 -1 to ptr)
+  br i1 %2, label %dtable_check2, label %dtable_skip7
+dtable_check2:                                    ; preds = %dtable_check2, %dtable_skip
+  %dtable_ref3 = phi ptr [ getelementptr inbounds
+  %dtable_ptr4 = load ptr, ptr %dtable_ref3, align 8
+  %3 = icmp eq ptr %dtable_ptr4, null
+  %next_dtable_ref5 = getelementptr inbounds
+  br i1 %3, label %dtable_found6, label %dtable_check2
+dtable_found6:                                    ; preds = %dtable_check2
+  store ptr @"$ct.dyn.inherit.Test.hello", ptr %dtable_ref3, align 8
+  store ptr null, ptr getelementptr inbounds
+  br label %dtable_skip7
+dtable_skip7:                                     ; preds = %dtable_found6, %dtable_skip
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/dynamic/inherit_macos.c3t b/test/test_suite7/dynamic/inherit_macos.c3t
new file mode 100644
index 000000000..cb62b34df
--- /dev/null
+++ b/test/test_suite7/dynamic/inherit_macos.c3t
@@ -0,0 +1,176 @@
+// #target: macos-x64
+module inherit;
+import std::io;
+
+interface Base
+{
+	fn void tesT();
+}
+
+interface TestProto2 : Base
+{
+}
+
+interface TestProto : Base
+{
+	fn void hello();
+}
+
+fn void Test.tesT(&self) @dynamic
+{
+}
+
+fn void Test.hello(&self) @dynamic
+{
+}
+
+struct Test (TestProto, TestProto2)
+{
+	void* abc;
+}
+
+fn void main()
+{
+	TestProto z = mem::alloc(Test);
+	z.tesT();
+	Base w = z;
+	w.tesT();
+}
+
+/* #expect: inherit.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%any = type { ptr, i64 }
+
+@"$ct.inherit.Test" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$sel.tesT" = linkonce_odr constant [5 x i8] c"tesT\00", align 1
+@.panic_msg = internal constant [42 x i8] c"No method 'tesT' could be found on target\00", align 1
+@.func = internal constant [5 x i8] c"main\00", align 1
+@std.core.builtin.panic = extern_weak global ptr, align 8
+@"$sel.hello" = linkonce_odr constant [6 x i8] c"hello\00", align 1
+@"$c3_dynamic" = internal global [2 x { ptr, ptr, i64 }] [{ ptr, ptr, i64 } { ptr @inherit.Test.tesT, ptr @"$sel.tesT", i64 ptrtoint (ptr @"$ct.inherit.Test" to i64) }, { ptr, ptr, i64 } { ptr @inherit.Test.hello, ptr @"$sel.hello", i64 ptrtoint (ptr @"$ct.inherit.Test" to i64) }], section "__DATA,__c3_dynamic", align 8
+
+define void @inherit.Test.tesT(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @inherit.Test.hello(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @inherit.main() #0 {
+entry:
+  %z = alloca %any, align 8
+  %.inlinecache = alloca ptr, align 8
+  %.cachedtype = alloca ptr, align 8
+  %w = alloca %any, align 8
+  %.inlinecache3 = alloca ptr, align 8
+  %.cachedtype4 = alloca ptr, align 8
+  store ptr null, ptr %.cachedtype4, align 8
+  store ptr null, ptr %.cachedtype, align 8
+  %0 = call ptr @std.core.mem.malloc(i64 8) #1
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.inherit.Test" to i64), 1
+  store %any %2, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  %3 = load i64, ptr %ptradd, align 8
+  %4 = inttoptr i64 %3 to ptr
+  %type = load ptr, ptr %.cachedtype, align 8
+  %5 = icmp eq ptr %4, %type
+  br i1 %5, label %cache_hit, label %cache_miss
+
+cache_miss:                                       ; preds = %entry
+  %ptradd1 = getelementptr inbounds i8, ptr %4, i64 16
+  %6 = load ptr, ptr %ptradd1, align 8
+  %7 = call ptr @.dyn_search(ptr %6, ptr @"$sel.tesT")
+  store ptr %7, ptr %.inlinecache, align 8
+  store ptr %4, ptr %.cachedtype, align 8
+  br label %8
+
+cache_hit:                                        ; preds = %entry
+  %cache_hit_fn = load ptr, ptr %.inlinecache, align 8
+  br label %8
+
+8:                                                ; preds = %cache_hit, %cache_miss
+  %fn_phi = phi ptr [ %cache_hit_fn, %cache_hit ], [ %7, %cache_miss ]
+  %9 = icmp eq ptr %fn_phi, null
+  br i1 %9, label %missing_function, label %match
+
+missing_function:                                 ; preds = %8
+  %10 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %10(ptr @.panic_msg, i64 41,
+  unreachable
+
+match:                                            ; preds = %8
+  %11 = load ptr, ptr %z, align 8
+  call void %fn_phi(ptr %11)
+  %12 = load %any, ptr %z, align 8
+  store %any %12, ptr %w, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %w, i64 8
+  %13 = load i64, ptr %ptradd2, align 8
+  %14 = inttoptr i64 %13 to ptr
+  %type5 = load ptr, ptr %.cachedtype4, align 8
+  %15 = icmp eq ptr %14, %type5
+  br i1 %15, label %cache_hit8, label %cache_miss6
+
+cache_miss6:                                      ; preds = %match
+  %ptradd7 = getelementptr inbounds i8, ptr %14, i64 16
+  %16 = load ptr, ptr %ptradd7, align 8
+  %17 = call ptr @.dyn_search(ptr %16, ptr @"$sel.tesT")
+  store ptr %17, ptr %.inlinecache3, align 8
+  store ptr %14, ptr %.cachedtype4, align 8
+  br label %18
+
+cache_hit8:                                       ; preds = %match
+  %cache_hit_fn9 = load ptr, ptr %.inlinecache3, align 8
+  br label %18
+
+18:                                               ; preds = %cache_hit8, %cache_miss6
+  %fn_phi10 = phi ptr [ %cache_hit_fn9, %cache_hit8 ], [ %17, %cache_miss6 ]
+  %19 = icmp eq ptr %fn_phi10, null
+  br i1 %19, label %missing_function11, label %match12
+
+missing_function11:                               ; preds = %18
+  %20 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %20(ptr @.panic_msg, i64 41
+  unreachable
+
+match12:                                          ; preds = %18
+  %21 = load ptr, ptr %w, align 8
+  call void %fn_phi10(ptr %21)
+  ret void
+}
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @inherit.main()
+  ret i32 0
+}
+define weak ptr @.dyn_search(ptr %0, ptr %1) unnamed_addr {
+entry:
+  br label %check
+
+check:                                            ; preds = %no_match, %entry
+  %2 = phi ptr [ %0, %entry ], [ %9, %no_match ]
+  %3 = icmp eq ptr %2, null
+  br i1 %3, label %missing_function, label %compare
+
+missing_function:                                 ; preds = %check
+  ret ptr null
+
+compare:                                          ; preds = %check
+  %4 = getelementptr inbounds
+  %5 = load ptr, ptr %4, align 8
+  %6 = icmp eq ptr %5, %1
+  br i1 %6, label %match, label %no_match
+
+match:                                            ; preds = %compare
+  %7 = load ptr, ptr %2, align 8
+  ret ptr %7
+
+no_match:                                         ; preds = %compare
+  %8 = getelementptr inbounds
+  %9 = load ptr, ptr %8, align 8
+  br label %check
+}
diff --git a/test/test_suite7/dynamic/inline_protocol.c3 b/test/test_suite7/dynamic/inline_protocol.c3
new file mode 100644
index 000000000..76494b27b
--- /dev/null
+++ b/test/test_suite7/dynamic/inline_protocol.c3
@@ -0,0 +1,35 @@
+interface Foo
+{
+	fn int foo();
+}
+
+struct Abc (Foo)
+{
+	int a;
+}
+
+struct Bcd
+{
+	inline Abc a;
+}
+
+struct Def
+{
+	Abc a;
+}
+
+fn int Abc.foo(&self) @dynamic => 1;
+
+distinct Foob = inline Abc;
+
+fn void test1()
+{
+	Foob b;
+	Abc x;
+	Bcd y;
+	Def d;
+	Foo f = &x;
+	f = &b;
+	f = &y;
+	f = &d; // #error: assume the interface is implemented
+}
\ No newline at end of file
diff --git a/test/test_suite7/dynamic/null_and_protocol.c3t b/test/test_suite7/dynamic/null_and_protocol.c3t
new file mode 100644
index 000000000..fed630259
--- /dev/null
+++ b/test/test_suite7/dynamic/null_and_protocol.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+module test;
+
+interface Test {}
+
+fn void main()
+{
+	Test a;
+	bool x = a == null;
+	a = null;
+	any z = a;
+	z = null;
+}
+
+/* #expect: test.ll
+
+%any = type { ptr, i64 }
+@"$ct.void" = linkonce global %.introspect { i8 0, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @test.main() #0 {
+entry:
+  %a = alloca %any, align 8
+  %x = alloca i8, align 1
+  %z = alloca %any, align 8
+  store %any zeroinitializer, ptr %a, align 8
+  %0 = load ptr, ptr %a, align 8
+  %eq = icmp eq ptr %0, null
+  %1 = zext i1 %eq to i8
+  store i8 %1, ptr %x, align 1
+  store %any { ptr null, i64 ptrtoint (ptr @"$ct.void" to i64) }, ptr %a, align 8
+  %2 = load %any, ptr %a, align 8
+  store %any %2, ptr %z, align 8
+  store %any { ptr null, i64 ptrtoint (ptr @"$ct.void" to i64) }, ptr %z, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/dynamic/overlapping_function_linux.c3t b/test/test_suite7/dynamic/overlapping_function_linux.c3t
new file mode 100644
index 000000000..05c63b4df
--- /dev/null
+++ b/test/test_suite7/dynamic/overlapping_function_linux.c3t
@@ -0,0 +1,190 @@
+// #target: linux-x64
+module overlap;
+import std::io;
+
+interface TestProto
+{
+	fn void tesT();
+}
+
+interface TestProto2
+{
+	fn void tesT();
+}
+
+fn void Test.tesT(&self) @dynamic
+{
+}
+
+fn void Test.foo(&self) @dynamic {}
+
+struct Test (TestProto, TestProto2)
+{
+	void* abc;
+}
+
+fn void main()
+{
+	TestProto z = mem::alloc(Test);
+	z.tesT();
+	TestProto2 w = (TestProto2)z;
+	w.tesT();
+}
+
+/* #expect: overlap.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%any = type { ptr, i64 }
+@"$ct.overlap.Test" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, comdat, align 8
+@"$sel.tesT" = linkonce_odr constant [5 x i8] c"tesT\00", comdat, align 1
+@.panic_msg = internal constant [42 x i8] c"No method 'tesT' could be found on target\00", align 1
+@.file = internal constant [30 x i8] c"overlapping_function_linux.c3\00", align 1
+@.func = internal constant [5 x i8] c"main\00", align 1
+@std.core.builtin.panic = extern_weak global ptr, align 8
+@"$ct.dyn.overlap.Test.tesT" = weak global { ptr, ptr, ptr } { ptr @overlap.Test.tesT, ptr @"$sel.tesT", ptr inttoptr (i64 -1 to ptr) }, comdat, align 8
+@"$ct.dyn.overlap.Test.foo" = weak global { ptr, ptr, ptr } { ptr @overlap.Test.foo, ptr @"$sel.foo", ptr inttoptr (i64 -1 to ptr) }, comdat, align 8
+@"$sel.foo" = linkonce_odr constant [4 x i8] c"foo\00", comdat, align 1
+@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 1, ptr @.c3_dynamic_register, ptr null }]
+; Function Attrs: nounwind uwtable
+define void @overlap.Test.tesT(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @overlap.Test.foo(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @overlap.main() #0 {
+entry:
+  %z = alloca %any, align 8
+  %.inlinecache = alloca ptr, align 8
+  %.cachedtype = alloca ptr, align 8
+  %w = alloca %any, align 8
+  %.inlinecache3 = alloca ptr, align 8
+  %.cachedtype4 = alloca ptr, align 8
+  store ptr null, ptr %.cachedtype4, align 8
+  store ptr null, ptr %.cachedtype, align 8
+  %0 = call ptr @std.core.mem.malloc(i64 8) #1
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.overlap.Test" to i64), 1
+  store %any %2, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  %3 = load i64, ptr %ptradd, align 8
+  %4 = inttoptr i64 %3 to ptr
+  %type = load ptr, ptr %.cachedtype, align 8
+  %5 = icmp eq ptr %4, %type
+  br i1 %5, label %cache_hit, label %cache_miss
+cache_miss:                                       ; preds = %entry
+  %ptradd1 = getelementptr inbounds i8, ptr %4, i64 16
+  %6 = load ptr, ptr %ptradd1, align 8
+  %7 = call ptr @.dyn_search(ptr %6, ptr @"$sel.tesT")
+  store ptr %7, ptr %.inlinecache, align 8
+  store ptr %4, ptr %.cachedtype, align 8
+  br label %8
+cache_hit:                                        ; preds = %entry
+  %cache_hit_fn = load ptr, ptr %.inlinecache, align 8
+  br label %8
+8:                                                ; preds = %cache_hit, %cache_miss
+  %fn_phi = phi ptr [ %cache_hit_fn, %cache_hit ], [ %7, %cache_miss ]
+  %9 = icmp eq ptr %fn_phi, null
+  br i1 %9, label %missing_function, label %match
+missing_function:                                 ; preds = %8
+  %10 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %10(ptr @.panic_msg, i64 41, ptr @.file
+  unreachable
+match:                                            ; preds = %8
+  %11 = load ptr, ptr %z, align 8
+  call void %fn_phi(ptr %11)
+  %12 = load %any, ptr %z, align 8
+  store %any %12, ptr %w, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %w, i64 8
+  %13 = load i64, ptr %ptradd2, align 8
+  %14 = inttoptr i64 %13 to ptr
+  %type5 = load ptr, ptr %.cachedtype4, align 8
+  %15 = icmp eq ptr %14, %type5
+  br i1 %15, label %cache_hit8, label %cache_miss6
+cache_miss6:                                      ; preds = %match
+  %ptradd7 = getelementptr inbounds i8, ptr %14, i64 16
+  %16 = load ptr, ptr %ptradd7, align 8
+  %17 = call ptr @.dyn_search(ptr %16, ptr @"$sel.tesT")
+  store ptr %17, ptr %.inlinecache3, align 8
+  store ptr %14, ptr %.cachedtype4, align 8
+  br label %18
+cache_hit8:                                       ; preds = %match
+  %cache_hit_fn9 = load ptr, ptr %.inlinecache3, align 8
+  br label %18
+18:                                               ; preds = %cache_hit8, %cache_miss6
+  %fn_phi10 = phi ptr [ %cache_hit_fn9, %cache_hit8 ], [ %17, %cache_miss6 ]
+  %19 = icmp eq ptr %fn_phi10, null
+  br i1 %19, label %missing_function11, label %match12
+missing_function11:                               ; preds = %18
+  %20 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %20(ptr @.panic_msg, i64 41, ptr @.file
+  unreachable
+match12:                                          ; preds = %18
+  %21 = load ptr, ptr %w, align 8
+  call void %fn_phi10(ptr %21)
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @overlap.main()
+  ret i32 0
+}
+define weak ptr @.dyn_search(ptr %0, ptr %1) unnamed_addr comdat {
+entry:
+  br label %check
+check:                                            ; preds = %no_match, %entry
+  %2 = phi ptr [ %0, %entry ], [ %9, %no_match ]
+  %3 = icmp eq ptr %2, null
+  br i1 %3, label %missing_function, label %compare
+missing_function:                                 ; preds = %check
+  ret ptr null
+compare:                                          ; preds = %check
+  %4 = getelementptr inbounds
+  %5 = load ptr, ptr %4, align 8
+  %6 = icmp eq ptr %5, %1
+  br i1 %6, label %match, label %no_match
+match:                                            ; preds = %compare
+  %7 = load ptr, ptr %2, align 8
+  ret ptr %7
+no_match:                                         ; preds = %compare
+  %8 = getelementptr inbounds
+  %9 = load ptr, ptr %8, align 8
+  br label %check
+}
+define internal void @.c3_dynamic_register() align 8 {
+entry:
+  %next_val = load ptr, ptr getelementptr inbounds
+  %0 = icmp eq ptr %next_val, inttoptr (i64 -1 to ptr)
+  br i1 %0, label %dtable_check, label %dtable_skip
+dtable_check:                                     ; preds = %dtable_check, %entry
+  %dtable_ref = phi ptr [ getelementptr inbounds
+  %dtable_ptr = load ptr, ptr %dtable_ref, align 8
+  %1 = icmp eq ptr %dtable_ptr, null
+  %next_dtable_ref = getelementptr inbounds
+  br i1 %1, label %dtable_found, label %dtable_check
+dtable_found:                                     ; preds = %dtable_check
+  store ptr @"$ct.dyn.overlap.Test.tesT", ptr %dtable_ref, align 8
+  store ptr null, ptr getelementptr inbounds
+  br label %dtable_skip
+dtable_skip:                                      ; preds = %dtable_found, %entry
+  %next_val1 = load ptr, ptr getelementptr inbounds
+  %2 = icmp eq ptr %next_val1, inttoptr (i64 -1 to ptr)
+  br i1 %2, label %dtable_check2, label %dtable_skip7
+dtable_check2:                                    ; preds = %dtable_check2, %dtable_skip
+  %dtable_ref3 = phi ptr [ getelementptr inbounds
+  %dtable_ptr4 = load ptr, ptr %dtable_ref3, align 8
+  %3 = icmp eq ptr %dtable_ptr4, null
+  %next_dtable_ref5 = getelementptr inbounds
+  br i1 %3, label %dtable_found6, label %dtable_check2
+dtable_found6:                                    ; preds = %dtable_check2
+  store ptr @"$ct.dyn.overlap.Test.foo", ptr %dtable_ref3, align 8
+  store ptr null, ptr getelementptr inbounds
+  br label %dtable_skip7
+dtable_skip7:                                     ; preds = %dtable_found6, %dtable_skip
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/dynamic/overlapping_function_macos.c3t b/test/test_suite7/dynamic/overlapping_function_macos.c3t
new file mode 100644
index 000000000..a49c8a18a
--- /dev/null
+++ b/test/test_suite7/dynamic/overlapping_function_macos.c3t
@@ -0,0 +1,174 @@
+// #target: macos-x64
+module overlap;
+import std::io;
+
+interface TestProto
+{
+	fn void tesT();
+}
+
+interface TestProto2
+{
+	fn void tesT();
+}
+
+fn void Test.tesT(&self) @dynamic
+{
+}
+
+fn void Test.foo(&self) @dynamic {}
+
+struct Test (TestProto, TestProto2)
+{
+	void* abc;
+}
+
+fn void main()
+{
+	TestProto z = mem::alloc(Test);
+	z.tesT();
+	TestProto2 w = (TestProto2)z;
+	w.tesT();
+}
+
+/* #expect: overlap.ll
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%any = type { ptr, i64 }
+
+@"$ct.overlap.Test" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$sel.tesT" = linkonce_odr constant [5 x i8] c"tesT\00", align 1
+@.panic_msg = internal constant [42 x i8] c"No method 'tesT' could be found on target\00", align 1
+@.file = internal constant [30 x i8] c"overlapping_function_macos.c3\00", align 1
+@.func = internal constant [5 x i8] c"main\00", align 1
+@std.core.builtin.panic = extern_weak global ptr, align 8
+@"$sel.foo" = linkonce_odr constant [4 x i8] c"foo\00", align 1
+@"$c3_dynamic" = internal global [2 x { ptr, ptr, i64 }] [{ ptr, ptr, i64 } { ptr @overlap.Test.tesT, ptr @"$sel.tesT", i64 ptrtoint (ptr @"$ct.overlap.Test" to i64) }, { ptr, ptr, i64 } { ptr @overlap.Test.foo, ptr @"$sel.foo", i64 ptrtoint (ptr @"$ct.overlap.Test" to i64) }], section "__DATA,__c3_dynamic", align 8
+
+; Function Attrs: nounwind uwtable
+define void @overlap.Test.tesT(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @overlap.Test.foo(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @overlap.main() #0 {
+entry:
+  %z = alloca %any, align 8
+  %.inlinecache = alloca ptr, align 8
+  %.cachedtype = alloca ptr, align 8
+  %w = alloca %any, align 8
+  %.inlinecache3 = alloca ptr, align 8
+  %.cachedtype4 = alloca ptr, align 8
+  store ptr null, ptr %.cachedtype4, align 8
+  store ptr null, ptr %.cachedtype, align 8
+  %0 = call ptr @std.core.mem.malloc(i64 8) #1
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.overlap.Test" to i64), 1
+  store %any %2, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  %3 = load i64, ptr %ptradd, align 8
+  %4 = inttoptr i64 %3 to ptr
+  %type = load ptr, ptr %.cachedtype, align 8
+  %5 = icmp eq ptr %4, %type
+  br i1 %5, label %cache_hit, label %cache_miss
+
+cache_miss:                                       ; preds = %entry
+  %ptradd1 = getelementptr inbounds i8, ptr %4, i64 16
+  %6 = load ptr, ptr %ptradd1, align 8
+  %7 = call ptr @.dyn_search(ptr %6, ptr @"$sel.tesT")
+  store ptr %7, ptr %.inlinecache, align 8
+  store ptr %4, ptr %.cachedtype, align 8
+  br label %8
+
+cache_hit:                                        ; preds = %entry
+  %cache_hit_fn = load ptr, ptr %.inlinecache, align 8
+  br label %8
+
+8:                                                ; preds = %cache_hit, %cache_miss
+  %fn_phi = phi ptr [ %cache_hit_fn, %cache_hit ], [ %7, %cache_miss ]
+  %9 = icmp eq ptr %fn_phi, null
+  br i1 %9, label %missing_function, label %match
+
+missing_function:                                 ; preds = %8
+  %10 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %10(ptr @.panic_msg, i64 41, ptr @.file
+  unreachable
+
+match:                                            ; preds = %8
+  %11 = load ptr, ptr %z, align 8
+  call void %fn_phi(ptr %11)
+  %12 = load %any, ptr %z, align 8
+  store %any %12, ptr %w, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %w, i64 8
+  %13 = load i64, ptr %ptradd2, align 8
+  %14 = inttoptr i64 %13 to ptr
+  %type5 = load ptr, ptr %.cachedtype4, align 8
+  %15 = icmp eq ptr %14, %type5
+  br i1 %15, label %cache_hit8, label %cache_miss6
+
+cache_miss6:                                      ; preds = %match
+  %ptradd7 = getelementptr inbounds i8, ptr %14, i64 16
+  %16 = load ptr, ptr %ptradd7, align 8
+  %17 = call ptr @.dyn_search(ptr %16, ptr @"$sel.tesT")
+  store ptr %17, ptr %.inlinecache3, align 8
+  store ptr %14, ptr %.cachedtype4, align 8
+  br label %18
+
+cache_hit8:                                       ; preds = %match
+  %cache_hit_fn9 = load ptr, ptr %.inlinecache3, align 8
+  br label %18
+
+18:                                               ; preds = %cache_hit8, %cache_miss6
+  %fn_phi10 = phi ptr [ %cache_hit_fn9, %cache_hit8 ], [ %17, %cache_miss6 ]
+  %19 = icmp eq ptr %fn_phi10, null
+  br i1 %19, label %missing_function11, label %match12
+
+missing_function11:                               ; preds = %18
+  %20 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %20(ptr @.panic_msg, i64 41, ptr @.file
+  unreachable
+
+match12:                                          ; preds = %18
+  %21 = load ptr, ptr %w, align 8
+  call void %fn_phi10(ptr %21)
+  ret void
+}
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @overlap.main()
+  ret i32 0
+}
+
+define weak ptr @.dyn_search(ptr %0, ptr %1) unnamed_addr {
+entry:
+  br label %check
+
+check:                                            ; preds = %no_match, %entry
+  %2 = phi ptr [ %0, %entry ], [ %9, %no_match ]
+  %3 = icmp eq ptr %2, null
+  br i1 %3, label %missing_function, label %compare
+
+missing_function:                                 ; preds = %check
+  ret ptr null
+
+compare:                                          ; preds = %check
+  %4 = getelementptr inbounds
+  %5 = load ptr, ptr %4, align 8
+  %6 = icmp eq ptr %5, %1
+  br i1 %6, label %match, label %no_match
+
+match:                                            ; preds = %compare
+  %7 = load ptr, ptr %2, align 8
+  ret ptr %7
+
+no_match:                                         ; preds = %compare
+  %8 = getelementptr inbounds
+  %9 = load ptr, ptr %8, align 8
+  br label %check
+}
diff --git a/test/test_suite7/dynamic/same_method_twice.c3 b/test/test_suite7/dynamic/same_method_twice.c3
new file mode 100644
index 000000000..e8061986f
--- /dev/null
+++ b/test/test_suite7/dynamic/same_method_twice.c3
@@ -0,0 +1,12 @@
+module test;
+import std::io;
+
+interface Abc
+{
+	fn void test();
+}
+
+fn void Abc.hello(&self) {}
+fn void Abc.hello(&self) {} // #error: This method is already defined
+
+fn void main() {}
\ No newline at end of file
diff --git a/test/test_suite7/embed/embed_basic.c3t b/test/test_suite7/embed/embed_basic.c3t
new file mode 100644
index 000000000..c8a182f0a
--- /dev/null
+++ b/test/test_suite7/embed/embed_basic.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+module testing;
+
+fn void main()
+{
+	char[?] data = $embed("embed_basic.c3");
+	char* data2 = $embed("embed_basic.c3");
+	char[] data3 = $embed("embed_basic.c3");
+	char* data4 = $embed("fiek") ?? null;
+	char*! data5 = $embed("fiek");
+}
+
+/* #expect: testing.ll
+
+
+@.bytes = private unnamed_addr constant [234 x i8] c"module testing;\0A\0Afn void main()\0A{\0A\09char[?] data = $embed(\22embed_basic.c3\22);\0A\09char* data2 = $embed(\22embed_basic.c3\22);\0A\09char[] data3 = $embed(\22embed_basic.c3\22);\0A\09char* data4 = $embed(\22fiek\22) ?? null;\0A\09char*! data5 = $embed(\22fiek\22);\0A}\0A\0A\00", align 1
+@.bytes.1 = private unnamed_addr constant [234 x i8] c"module testing;\0A\0Afn void main()\0A{\0A\09char[?] data = $embed(\22embed_basic.c3\22);\0A\09char* data2 = $embed(\22embed_basic.c3\22);\0A\09char[] data3 = $embed(\22embed_basic.c3\22);\0A\09char* data4 = $embed(\22fiek\22) ?? null;\0A\09char*! data5 = $embed(\22fiek\22);\0A}\0A\0A\00", align 1
+@.bytes.2 = private unnamed_addr constant [234 x i8] c"module testing;\0A\0Afn void main()\0A{\0A\09char[?] data = $embed(\22embed_basic.c3\22);\0A\09char* data2 = $embed(\22embed_basic.c3\22);\0A\09char[] data3 = $embed(\22embed_basic.c3\22);\0A\09char* data4 = $embed(\22fiek\22) ?? null;\0A\09char*! data5 = $embed(\22fiek\22);\0A}\0A\0A\00", align 1
+
+define void @testing.main() #0 {
+entry:
+  %data = alloca
+  %data2 = alloca ptr, align 8
+  %data3 = alloca %"char[]", align 8
+  %data4 = alloca ptr, align 8
+  %data5 = alloca ptr, align 8
+  %data5.f = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %data, ptr align 1 @.bytes
+  store ptr @.bytes.1, ptr %data2, align 8
+  store %"char[]" { ptr @.bytes.2
+  store ptr null, ptr %data4, align 8
+  store i64 ptrtoint (ptr @"std.io.IoError$FILE_NOT_FOUND" to i64), ptr %data5.f, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/compile_time.c3t b/test/test_suite7/enumerations/compile_time.c3t
new file mode 100644
index 000000000..ccea48d73
--- /dev/null
+++ b/test/test_suite7/enumerations/compile_time.c3t
@@ -0,0 +1,17 @@
+// #target: macos-x64
+enum MyEnum : short
+{
+    HELO,
+    WORLD,
+    BYE
+}
+
+int myenum_elements = MyEnum.elements;
+int myenum_alignof = MyEnum.alignof;
+int myenum_sizeof = MyEnum.sizeof;
+
+/* #expect: compile_time.ll
+
+@compile_time.myenum_elements = local_unnamed_addr global i32 3, align 4
+@compile_time.myenum_alignof = local_unnamed_addr global i32 2, align 4
+@compile_time.myenum_sizeof = local_unnamed_addr global i32 2, align 4
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/enum_add_sub.c3t b/test/test_suite7/enumerations/enum_add_sub.c3t
new file mode 100644
index 000000000..20772f44a
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_add_sub.c3t
@@ -0,0 +1,48 @@
+// #target: macos-x64
+module test;
+enum Foo
+{
+	ABC
+}
+distinct Abc = inline Foo;
+distinct BarInt = int;
+enum Bar : BarInt
+{
+	ABC
+}
+fn int main()
+{
+	Foo a;
+	a += 1;
+	$assert $typeof(a++).typeid == Foo.typeid;
+	$assert $typeof(a += 1).typeid == Foo.typeid;
+	Abc b;
+	b += 1;
+	$assert $typeof(b++).typeid == Abc.typeid;
+	$assert $typeof(b += 1).typeid == Abc.typeid;
+	Bar c;
+	c += 1;
+	$assert $typeof(c++).typeid == Bar.typeid;
+	$assert $typeof(c += 1).typeid == Bar.typeid;
+	return 0;
+}
+
+
+/* #expect: test.ll
+
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %c = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  %0 = load i32, ptr %a, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr %a, align 4
+  store i32 0, ptr %b, align 4
+  %1 = load i32, ptr %b, align 4
+  %add1 = add i32 %1, 1
+  store i32 %add1, ptr %b, align 4
+  store i32 0, ptr %c, align 4
+  %2 = load i32, ptr %c, align 4
+  %add2 = add i32 %2, 1
+  store i32 %add2, ptr %c, align 4
+  ret i32 0
diff --git a/test/test_suite7/enumerations/enum_associated_value.c3t b/test/test_suite7/enumerations/enum_associated_value.c3t
new file mode 100644
index 000000000..5c5054874
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_associated_value.c3t
@@ -0,0 +1,61 @@
+// #target: macos-x64
+module test;
+import libc;
+
+enum Foo : uint (int val, char* testme)
+{
+	A = { 123, "Number A" },
+	B = { 333, "Number B" },
+}
+
+fn void main()
+{
+	int x = Foo.A.val;
+	Foo f = Foo.B;
+	Foo g = Foo.A;
+	libc::printf("%d (%s) %d (%s)\n", f.val, f.testme, g.val, g.testme);
+}
+
+/* #expect: test.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%"char[]" = type { ptr, i64 }
+
+@.enum.A = internal constant [2 x i8] c"A\00", align 1
+@.enum.B = internal constant [2 x i8] c"B\00", align 1
+@"$ct.uint" = linkonce global %.introspect { i8 3, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Foo" = linkonce global { i8, i64, ptr, i64, i64, i64, [2 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.uint" to i64), i64 2, [2 x %"char[]"] [%"char[]" { ptr @.enum.A, i64 1 }, %"char[]" { ptr @.enum.B, i64 1 }] }, align 8
+@"test.Foo$val" = linkonce constant [2 x i32] [i32 123, i32 333], align 4
+@.str = private unnamed_addr constant [9 x i8] c"Number A\00", align 1
+@.str.1 = private unnamed_addr constant [9 x i8] c"Number B\00", align 1
+@"test.Foo$testme" = linkonce constant [2 x ptr] [ptr @.str, ptr @.str.1], align 8
+@.str.2 = private unnamed_addr constant [17 x i8] c"%d (%s) %d (%s)\0A\00", align 1
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %f = alloca i32, align 4
+  %g = alloca i32, align 4
+  store i32 123, ptr %x, align 4
+  store i32 1, ptr %f, align 4
+  store i32 0, ptr %g, align 4
+  %0 = load i32, ptr %f, align 4
+  %zext = zext i32 %0 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr @"test.Foo$val", i64 %zext
+  %1 = load i32, ptr %f, align 4
+  %zext1 = zext i32 %1 to i64
+  %ptroffset2 = getelementptr inbounds [8 x i8], ptr @"test.Foo$testme", i64 %zext1
+  %2 = load i32, ptr %g, align 4
+  %zext3 = zext i32 %2 to i64
+  %ptroffset4 = getelementptr inbounds [4 x i8], ptr @"test.Foo$val", i64 %zext3
+  %3 = load i32, ptr %g, align 4
+  %zext5 = zext i32 %3 to i64
+  %ptroffset6 = getelementptr inbounds [8 x i8], ptr @"test.Foo$testme", i64 %zext5
+  %4 = load i32, ptr %ptroffset, align 4
+  %5 = load ptr, ptr %ptroffset2, align 8
+  %6 = load i32, ptr %ptroffset4, align 4
+  %7 = load ptr, ptr %ptroffset6, align 8
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.2, i32 %4, ptr %5, i32 %6, ptr %7)
+  ret void
+}
diff --git a/test/test_suite7/enumerations/enum_associated_values_other.c3t b/test/test_suite7/enumerations/enum_associated_values_other.c3t
new file mode 100644
index 000000000..02fe8fe60
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_associated_values_other.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module test;
+import std::io;
+import abc;
+
+fn void main(String[] args)
+{
+	typeid y = Abc.typeid;
+	int* x = &abc::dabc;
+	Foo a = Foo.DEF;
+	String z = a.val;
+	io::printfn("%s", z);
+}
+
+module abc;
+int dabc;
+
+struct Abc { int x; }
+enum Foo : int (String val)
+{
+	ABC = "hello" ,
+	DEF = "world"
+}
+
+/* #expect: abc.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%"char[]" = type { ptr, i64 }
+@"$ct.abc.Abc" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.enum.ABC = internal constant [4 x i8] c"ABC\00", align 1
+@.enum.DEF = internal constant [4 x i8] c"DEF\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.abc.Foo" = linkonce global { i8, i64, ptr, i64, i64, i64, [2 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.int" to i64), i64 2, [2 x %"char[]"] [%"char[]" { ptr @.enum.ABC, i64 3 }, %"char[]" { ptr @.enum.DEF, i64 3 }] }, align 8
+@.str = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@.str.1 = private unnamed_addr constant [6 x i8] c"world\00", align 1
+@"abc.Foo$val" = linkonce constant [2 x %"char[]"] [%"char[]" { ptr @.str, i64 5 }, %"char[]" { ptr @.str.1, i64 5 }], align 8
+@abc.dabc = global i32 0, align 4
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/enum_cast.c3t b/test/test_suite7/enumerations/enum_cast.c3t
new file mode 100644
index 000000000..ff076c2f5
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_cast.c3t
@@ -0,0 +1,97 @@
+// #target: macos-x64
+module test;
+
+enum MyEnum : char
+{
+    FOO,
+    BAR
+}
+
+fn void test2()
+{
+	char ww = MyEnum.FOO.ordinal;
+	MyEnum x = MyEnum.BAR;
+	char zz = x.ordinal;
+}
+
+fn void test()
+{
+    char b = (char)MyEnum.FOO.ordinal;
+    int z = (int)MyEnum.BAR.ordinal;
+    var $foo = (int)MyEnum.FOO.ordinal;
+    var $baz = MyEnum.BAR;
+    MyEnum x = MyEnum.BAR;
+    char b2 = x.ordinal;
+    int z2 = (int)x.ordinal;
+    float d = (float)MyEnum.FOO.ordinal;
+    bool hello = (bool)MyEnum.FOO.ordinal;
+    var $d = (float)MyEnum.FOO.ordinal;
+    var $hello = (bool)MyEnum.FOO.ordinal;
+    MyEnum! xf = MyEnum.BAR;
+    float! e = (float)x.ordinal;
+    e = (float)xf.ordinal;
+
+}
+
+/* #expect: test.ll
+
+define void @test.test2() #0 {
+entry:
+  %ww = alloca i8, align 1
+  %x = alloca i8, align 1
+  %zz = alloca i8, align 1
+  store i8 0, ptr %ww, align 1
+  store i8 1, ptr %x, align 1
+  %0 = load i8, ptr %x, align 1
+  store i8 %0, ptr %zz, align 1
+  ret void
+}
+
+define void @test.test() #0 {
+entry:
+  %b = alloca i8, align 1
+  %z = alloca i32, align 4
+  %x = alloca i8, align 1
+  %b2 = alloca i8, align 1
+  %z2 = alloca i32, align 4
+  %d = alloca float, align 4
+  %hello = alloca i8, align 1
+  %xf = alloca i8, align 1
+  %xf.f = alloca i64, align 8
+  %e = alloca float, align 4
+  %e.f = alloca i64, align 8
+  store i8 0, ptr %b, align 1
+  store i32 1, ptr %z, align 4
+  store i8 1, ptr %x, align 1
+  %0 = load i8, ptr %x, align 1
+  store i8 %0, ptr %b2, align 1
+  %1 = load i8, ptr %x, align 1
+  %zext = zext i8 %1 to i32
+  store i32 %zext, ptr %z2, align 4
+  store float 0.000000e+00, ptr %d, align 4
+  store i8 0, ptr %hello, align 1
+  store i8 1, ptr %xf, align 1
+  store i64 0, ptr %xf.f, align 8
+  %2 = load i8, ptr %x, align 1
+  %uifp = uitofp i8 %2 to float
+  store float %uifp, ptr %e, align 4
+  store i64 0, ptr %e.f, align 8
+  %optval = load i64, ptr %xf.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %e.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %entry
+  %4 = load i8, ptr %xf, align 1
+  %uifp1 = uitofp i8 %4 to float
+  store float %uifp1, ptr %e, align 4
+  store i64 0, ptr %e.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check, %assign_optional
+  ret void
+}
diff --git a/test/test_suite7/enumerations/enum_cast_error.c3 b/test/test_suite7/enumerations/enum_cast_error.c3
new file mode 100644
index 000000000..3f8615e7f
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_cast_error.c3
@@ -0,0 +1,24 @@
+enum Abc : char { ABC }
+
+fn void foo()
+{
+	Abc x = Abc.from_ordinal(10); // #error: exceeds the max
+}
+
+fn void bar()
+{
+	int a;
+	Abc x = Abc.from_ordinal(a);
+}
+
+fn void baz()
+{
+	int a;
+	Abc x = Abc.from_ordinal(0);
+}
+
+fn void abc()
+{
+	int a;
+	Abc x = Abc.from_ordinal(-1); // #error: negative number
+}
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/enum_conversions.c3t b/test/test_suite7/enumerations/enum_conversions.c3t
new file mode 100644
index 000000000..9922feec3
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_conversions.c3t
@@ -0,0 +1,155 @@
+// #safe: yes
+// #target: macos-x64
+module test;
+enum Abc : char { ABC }
+
+fn void main()
+{
+	int a;
+	Abc x = Abc.from_ordinal(a);
+	long z;
+	Abc y = Abc.from_ordinal(z);
+	a = 256;
+	y = Abc.from_ordinal(a);
+	a = -1;
+	y = Abc.from_ordinal(a);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca i32, align 4
+  %x = alloca i8, align 1
+  %z = alloca i64, align 8
+  %y = alloca i8, align 1
+  store i32 0, ptr %a, align 4
+  %0 = load i32, ptr %a, align 4
+  %lt = icmp slt i32 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %lt, i1 false)
+  br i1 %1, label %panic, label %checkok
+checkok:                                          ; preds = %entry
+  %ge = icmp sge i32 %0, 1
+  %2 = call i1 @llvm.expect.i1(i1 %ge, i1 false)
+  br i1 %2, label %panic1, label %checkok6
+checkok6:                                         ; preds = %checkok
+  %trunc = trunc i32 %0 to i8
+  store i8 %trunc, ptr %x, align 1
+  store i64 0, ptr %z, align 8
+  %3 = load i64, ptr %z, align 8
+  %lt7 = icmp slt i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %lt7, i1 false)
+  br i1 %4, label %panic8, label %checkok13
+checkok13:                                        ; preds = %checkok6
+  %ge14 = icmp sge i64 %3, 1
+  %5 = call i1 @llvm.expect.i1(i1 %ge14, i1 false)
+  br i1 %5, label %panic15, label %checkok20
+checkok20:                                        ; preds = %checkok13
+  %trunc21 = trunc i64 %3 to i8
+  store i8 %trunc21, ptr %y, align 1
+  store i32 256, ptr %a, align 4
+  %6 = load i32, ptr %a, align 4
+  %lt22 = icmp slt i32 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %lt22, i1 false)
+  br i1 %7, label %panic23, label %checkok28
+checkok28:                                        ; preds = %checkok20
+  %ge29 = icmp sge i32 %6, 1
+  %8 = call i1 @llvm.expect.i1(i1 %ge29, i1 false)
+  br i1 %8, label %panic30, label %checkok35
+checkok35:                                        ; preds = %checkok28
+  %trunc36 = trunc i32 %6 to i8
+  store i8 %trunc36, ptr %y, align 1
+  store i32 -1, ptr %a, align 4
+  %9 = load i32, ptr %a, align 4
+  %lt37 = icmp slt i32 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %lt37, i1 false)
+  br i1 %10, label %panic38, label %checkok43
+checkok43:                                        ; preds = %checkok35
+  %ge44 = icmp sge i32 %9, 1
+  %11 = call i1 @llvm.expect.i1(i1 %ge44, i1 false)
+  br i1 %11, label %panic45, label %checkok50
+checkok50:                                        ; preds = %checkok43
+  %trunc51 = trunc i32 %9 to i8
+  store i8 %trunc51, ptr %y, align 1
+  ret void
+panic:                                            ; preds = %entry
+  store i32 %0, ptr %taddr, align 4
+  %12 = insertvalue %any undef, ptr %taddr, 0
+  %13 = insertvalue %any %12, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %13, ptr %varargslots, align 16
+  %14 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %14, i64 1, 1
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg
+  unreachable
+panic1:                                           ; preds = %checkok
+  store i32 %0, ptr %taddr2, align 4
+  %15 = insertvalue %any undef, ptr %taddr2, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %16, ptr %varargslots3, align 16
+  %17 = insertvalue %"any[]" undef, ptr %varargslots3, 0
+  %"$$temp4" = insertvalue %"any[]" %17, i64 1, 1
+  store %"any[]" %"$$temp4", ptr %indirectarg5, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg.1, i64 87, ptr @.file, i64 19, ptr @.func, i64 4, i32 7, ptr byval(%"any[]") align 8 %indirectarg5)
+  unreachable
+panic8:                                           ; preds = %checkok6
+  store i64 %3, ptr %taddr9, align 8
+  %18 = insertvalue %any undef, ptr %taddr9, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %19, ptr %varargslots10, align 16
+  %20 = insertvalue %"any[]" undef, ptr %varargslots10, 0
+  %"$$temp11" = insertvalue %"any[]" %20, i64 1, 1
+  store %"any[]" %"$$temp11", ptr %indirectarg12, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg,
+  unreachable
+panic15:                                          ; preds = %checkok13
+  store i64 %3, ptr %taddr16, align 8
+  %21 = insertvalue %any undef, ptr %taddr16, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %22, ptr %varargslots17, align 16
+  %23 = insertvalue %"any[]" undef, ptr %varargslots17, 0
+  %"$$temp18" = insertvalue %"any[]" %23, i64 1, 1
+  store %"any[]" %"$$temp18", ptr %indirectarg19, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg.1, i64 87, ptr @.file, i64 19, ptr @.func, i64 4, i32 9, ptr byval(%"any[]") align 8 %indirectarg19)
+  unreachable
+panic23:                                          ; preds = %checkok20
+  store i32 %6, ptr %taddr24, align 4
+  %24 = insertvalue %any undef, ptr %taddr24, 0
+  %25 = insertvalue %any %24, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %25, ptr %varargslots25, align 16
+  %26 = insertvalue %"any[]" undef, ptr %varargslots25, 0
+  %"$$temp26" = insertvalue %"any[]" %26, i64 1, 1
+  store %"any[]" %"$$temp26", ptr %indirectarg27, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg,
+  unreachable
+panic30:                                          ; preds = %checkok28
+  store i32 %6, ptr %taddr31, align 4
+  %27 = insertvalue %any undef, ptr %taddr31, 0
+  %28 = insertvalue %any %27, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %28, ptr %varargslots32, align 16
+  %29 = insertvalue %"any[]" undef, ptr %varargslots32, 0
+  %"$$temp33" = insertvalue %"any[]" %29, i64 1, 1
+  store %"any[]" %"$$temp33", ptr %indirectarg34, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg.1, i64 87, ptr @.file, i64 19, ptr @.func, i64 4, i32 11, ptr byval(%"any[]") align 8 %indirectarg34)
+  unreachable
+panic38:                                          ; preds = %checkok35
+  store i32 %9, ptr %taddr39, align 4
+  %30 = insertvalue %any undef, ptr %taddr39, 0
+  %31 = insertvalue %any %30, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %31, ptr %varargslots40, align 16
+  %32 = insertvalue %"any[]" undef, ptr %varargslots40, 0
+  %"$$temp41" = insertvalue %"any[]" %32, i64 1, 1
+  store %"any[]" %"$$temp41", ptr %indirectarg42, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg,
+  unreachable
+panic45:                                          ; preds = %checkok43
+  store i32 %9, ptr %taddr46, align 4
+  %33 = insertvalue %any undef, ptr %taddr46, 0
+  %34 = insertvalue %any %33, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %34, ptr %varargslots47, align 16
+  %35 = insertvalue %"any[]" undef, ptr %varargslots47, 0
+  %"$$temp48" = insertvalue %"any[]" %35, i64 1, 1
+  store %"any[]" %"$$temp48", ptr %indirectarg49, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg.1, i64 87, ptr @.file, i64 19, ptr @.func, i64 4, i32 13, ptr byval(%"any[]") align 8 %indirectarg49)
+  unreachable
+}
diff --git a/test/test_suite7/enumerations/enum_invalid_param.c3 b/test/test_suite7/enumerations/enum_invalid_param.c3
new file mode 100644
index 000000000..3c49e174b
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_invalid_param.c3
@@ -0,0 +1,14 @@
+enum Test : int (int kindof, int qnameof)
+{
+	FOO = {1, 2}
+}
+
+enum Test2 : (int a, int nameof)  // #error: 'nameof' is not a valid parameter name for enums
+{
+	FOO = {1, 2}
+}
+
+enum Test3 : (int a, int ordinal)  // #error: 'ordinal' is not a valid parameter name for enums
+{
+	FOO = {1, 2}
+}
diff --git a/test/test_suite7/enumerations/enum_missing_comma.c3 b/test/test_suite7/enumerations/enum_missing_comma.c3
new file mode 100644
index 000000000..d03e3e7cc
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_missing_comma.c3
@@ -0,0 +1,5 @@
+enum Abc
+{
+	FOO
+	BAR // #error: It looks like you forgot a comma
+}
diff --git a/test/test_suite7/enumerations/enum_reflect_associated.c3t b/test/test_suite7/enumerations/enum_reflect_associated.c3t
new file mode 100644
index 000000000..f39258d7f
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_reflect_associated.c3t
@@ -0,0 +1,51 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+enum Abc : int (int x, double y, String z)
+{
+	OFEKFE = { 1, 2.0, "foek" },
+}
+
+fn int main()
+{
+	$foreach ($type : Abc.associated)
+		io::printfn("%s", $type.qnameof);
+	$endforeach
+	return 0;
+}
+/* #expect: test.ll
+
+@.str.2 = private unnamed_addr constant [4 x i8] c"int\00", align 1
+@.str.4 = private unnamed_addr constant [7 x i8] c"double\00", align 1
+@.str.6 = private unnamed_addr constant [7 x i8] c"String\00", align 1
+
+; Function Attrs:
+define i32 @main() #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca %"char[]", align 8
+  %retparam = alloca i64, align 8
+  %varargslots1 = alloca [1 x %any], align 16
+  %taddr2 = alloca %"char[]", align 8
+  %retparam3 = alloca i64, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %taddr5 = alloca %"char[]", align 8
+  %retparam6 = alloca i64, align 8
+  store %"char[]" { ptr @.str.2, i64 3 }, ptr %taddr, align 8
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.1, i64 2, ptr %varargslots, i64 1)
+  store %"char[]" { ptr @.str.4, i64 6 }, ptr %taddr2, align 8
+  %3 = insertvalue %any undef, ptr %taddr2, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %4, ptr %varargslots1, align 16
+  %5 = call i64 @std.io.printfn(ptr %retparam3, ptr @.str.3, i64 2, ptr %varargslots1, i64 1)
+  store %"char[]" { ptr @.str.6, i64 6 }, ptr %taddr5, align 8
+  %6 = insertvalue %any undef, ptr %taddr5, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %7, ptr %varargslots4, align 16
+  %8 = call i64 @std.io.printfn(ptr %retparam6, ptr @.str.5, i64 2, ptr %varargslots4, i64 1)
+  ret i32 0
+}
diff --git a/test/test_suite7/enumerations/enum_same_param.c3 b/test/test_suite7/enumerations/enum_same_param.c3
new file mode 100644
index 000000000..4f1a928fb
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_same_param.c3
@@ -0,0 +1,9 @@
+enum Test : (int a, int b)
+{
+	FOO = { 1, 2 }
+}
+
+enum Test2 : int (int a, int a)  // #error: Duplicate parameter name 'a'
+{
+	FOO = { 1, 2 }
+}
diff --git a/test/test_suite7/enumerations/enum_signed_cast_swap.c3t b/test/test_suite7/enumerations/enum_signed_cast_swap.c3t
new file mode 100644
index 000000000..f88545e7b
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_signed_cast_swap.c3t
@@ -0,0 +1,27 @@
+// #target: macos-x64
+module test;
+enum Abc : char { ABC }
+
+enum Mouse_Button {
+  LEFT,
+  RIGHT,
+  MIDDLE,
+}
+
+fn void foo(Mouse_Button button)
+{
+}
+
+fn int main() {
+  uint x = 1;
+  foo(Mouse_Button.from_ordinal(x));
+  return 0;
+}
+
+/* #expect: test.ll
+
+  %x = alloca i32, align 4
+  store i32 1, ptr %x, align 4
+  %0 = load i32, ptr %x, align 4
+  call void @test.foo(i32 %0)
+  ret i32 0
diff --git a/test/test_suite7/enumerations/enum_values.c3t b/test/test_suite7/enumerations/enum_values.c3t
new file mode 100644
index 000000000..fb6b6172f
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_values.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+
+module test;
+
+enum Foo
+{
+    ABC,
+    BCD
+}
+
+Foo zfok = Foo.values[0];
+Foo[] zw = &&Foo.values;
+
+fn void test(int x)
+{
+    Foo zonk = Foo.values[x];
+}
+
+/* #expect: test.ll
+
+@test.zfok = local_unnamed_addr global i32 0, align 4
+@.taddr = private unnamed_addr global [2 x i32] [i32 0, i32 1], align 4
+@test.zw = local_unnamed_addr global %"int[]" { ptr @.taddr, i64 2 }, align 8
+
+define void @test.test(i32 %0) #0 {
+entry:
+  %zonk = alloca i32, align 4
+  %literal = alloca [2 x i32], align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 8, i1 false)
+  %sext = sext i32 %0 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %literal, i64 %sext
+  %1 = load i32, ptr %ptroffset, align 4
+  store i32 %1, ptr %zonk, align 4
+  ret void
+}
diff --git a/test/test_suite7/enumerations/enum_with_associated_value_decl.c3 b/test/test_suite7/enumerations/enum_with_associated_value_decl.c3
new file mode 100644
index 000000000..485fc9489
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_with_associated_value_decl.c3
@@ -0,0 +1,7 @@
+enum Test2 : (usz a, usz b) {
+  FOO = {4, 5, },
+}
+
+enum Test : (usz a, usz b) {
+  FOO = {a: 1, b: 1}, // #error: This looks like
+}
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/enum_with_const.c3t b/test/test_suite7/enumerations/enum_with_const.c3t
new file mode 100644
index 000000000..3474872a7
--- /dev/null
+++ b/test/test_suite7/enumerations/enum_with_const.c3t
@@ -0,0 +1,55 @@
+// #target: macos-x64
+module test;
+
+const FG_YELLOW = "\e[0;38;2;255;240;128m";
+const FG_GREEN  = "\e[0;38;2;192;255;192m";
+const FG_RED    = "\e[0;38;2;255;40;40m";
+
+enum SeverityTag : int (String fg, String label) {
+   INFO  = { FG_GREEN,  "info"  },
+   WARN  = { FG_YELLOW, "warn"  },
+   FATAL = { FG_RED,    "fatal" },
+   FATAL2 = { FG_RED,    "fatal2" },
+}
+
+fn void main()
+{
+	SeverityTag tag = WARN;
+	String a = tag.fg;
+}
+
+/* #expect: test.ll
+
+@.enum.INFO = internal constant [5 x i8] c"INFO\00", align 1
+@.enum.WARN = internal constant [5 x i8] c"WARN\00", align 1
+@.enum.FATAL = internal constant [6 x i8] c"FATAL\00", align 1
+@.enum.FATAL2 = internal constant [7 x i8] c"FATAL2\00", align 1
+@"$ct.test.SeverityTag" = linkonce global { i8, i64, ptr, i64, i64, i64, [4 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.int" to i64), i64 4, [4 x %"char[]"] [%"char[]" { ptr @.enum.INFO, i64 4 }, %"char[]" { ptr @.enum.WARN, i64 4 }, %"char[]" { ptr @.enum.FATAL, i64 5 }, %"char[]" { ptr @.enum.FATAL2, i64 6 }] }, align 8
+@.str = private unnamed_addr constant [22 x i8] c"\1B[0;38;2;192;255;192m\00", align 1
+@.str.1 = private unnamed_addr constant [22 x i8] c"\1B[0;38;2;255;240;128m\00", align 1
+@.str.2 = private unnamed_addr constant [20 x i8] c"\1B[0;38;2;255;40;40m\00", align 1
+@.str.3 = private unnamed_addr constant [20 x i8] c"\1B[0;38;2;255;40;40m\00", align 1
+@"test.SeverityTag$fg" = linkonce constant [4 x %"char[]"] [%"char[]" { ptr @.str, i64 21 }, %"char[]" { ptr @.str.1, i64 21 }, %"char[]" { ptr @.str.2, i64 19 }, %"char[]" { ptr @.str.3, i64 19 }], align 8
+@.str.4 = private unnamed_addr constant [5 x i8] c"info\00", align 1
+@.str.5 = private unnamed_addr constant [5 x i8] c"warn\00", align 1
+@.str.6 = private unnamed_addr constant [6 x i8] c"fatal\00", align 1
+@.str.7 = private unnamed_addr constant [7 x i8] c"fatal2\00", align 1
+@"test.SeverityTag$label" = linkonce constant [4 x %"char[]"] [%"char[]" { ptr @.str.4, i64 4 }, %"char[]" { ptr @.str.5, i64 4 }, %"char[]" { ptr @.str.6, i64 5 }, %"char[]" { ptr @.str.7, i64 6 }], align 8
+@.str.10 = private unnamed_addr constant [22 x i8] c"\1B[0;38;2;255;240;128m\00", align 1
+@test.FG_YELLOW = local_unnamed_addr constant %"char[]" { ptr @.str.10, i64 21 }, align 8
+@.str.11 = private unnamed_addr constant [22 x i8] c"\1B[0;38;2;192;255;192m\00", align 1
+@test.FG_GREEN = local_unnamed_addr constant %"char[]" { ptr @.str.11, i64 21 }, align 8
+@.str.12 = private unnamed_addr constant [20 x i8] c"\1B[0;38;2;255;40;40m\00", align 1
+@test.FG_RED = local_unnamed_addr constant %"char[]" { ptr @.str.12, i64 19 }, align 8
+
+define void @test.main() #0 {
+entry:
+  %tag = alloca i32, align 4
+  %a = alloca %"char[]", align 8
+  store i32 1, ptr %tag, align 4
+  %0 = load i32, ptr %tag, align 4
+  %ptroffset = getelementptr inbounds [16 x i8], ptr @"test.SeverityTag$fg", i32 %0
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %a, ptr align 8 %ptroffset, i32 16, i1 false)
+  ret void
+}
+
diff --git a/test/test_suite7/enumerations/inc_assign.c3t b/test/test_suite7/enumerations/inc_assign.c3t
new file mode 100644
index 000000000..88c71105a
--- /dev/null
+++ b/test/test_suite7/enumerations/inc_assign.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+module test;
+import std;
+
+enum Abc
+{
+	ABCD,
+	OKFEOFKE,
+	OFKEOFK
+}
+
+distinct Bob = inline Abc;
+fn void main()
+{
+	Abc y;
+	y += 1;
+	Bob gh;
+	gh += 1;
+}
+
+/* #expect: test.ll
+
+entry:
+  %y = alloca i32, align 4
+  %gh = alloca i32, align 4
+  store i32 0, ptr %y, align 4
+  %0 = load i32, ptr %y, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr %y, align 4
+  store i32 0, ptr %gh, align 4
+  %1 = load i32, ptr %gh, align 4
+  %add1 = add i32 %1, 1
+  store i32 %add1, ptr %gh, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/inc_assign_fail.c3 b/test/test_suite7/enumerations/inc_assign_fail.c3
new file mode 100644
index 000000000..f31877c7e
--- /dev/null
+++ b/test/test_suite7/enumerations/inc_assign_fail.c3
@@ -0,0 +1,20 @@
+// #target: macos-x64
+module test;
+import std;
+
+enum Abc
+{
+	ABCD,
+	OKFEOFKE,
+	OFKEOFK
+}
+
+distinct Bob = Abc;
+fn void main()
+{
+	Abc y;
+	y ^= 1; // #error: Expected an integer here, not a value of type
+	y += 1.0; // #error: The right side was 'double'
+	Bob gh;
+	gh += 1; // #error: A value of type 'Bob'
+}
diff --git a/test/test_suite7/enumerations/inline_enum_size.c3 b/test/test_suite7/enumerations/inline_enum_size.c3
new file mode 100644
index 000000000..916628b59
--- /dev/null
+++ b/test/test_suite7/enumerations/inline_enum_size.c3
@@ -0,0 +1,19 @@
+enum Bar : inline usz
+{
+  FOO,
+  BAR,
+}
+
+enum Bar2 : usz (inline int x)
+{
+  FOO = 1,
+  BAR = 4,
+}
+
+int[Bar.BAR] x;
+
+fn int main()
+{
+	char[Bar2.BAR] a;
+	return 0;
+}
diff --git a/test/test_suite7/enumerations/inline_enums.c3t b/test/test_suite7/enumerations/inline_enums.c3t
new file mode 100644
index 000000000..56da02b1e
--- /dev/null
+++ b/test/test_suite7/enumerations/inline_enums.c3t
@@ -0,0 +1,38 @@
+// #target: macos-x64
+module test;
+
+enum Abc : inline int
+{
+	ABC,
+	DEF,
+}
+
+enum Foo : int (inline String name, int y, int z)
+{
+	ABC = { "Hello", 1, 2 },
+	DEF = { "World", 2, 3 },
+}
+fn void main()
+{
+	int a = Abc.DEF;
+	Foo x = ABC;
+	Foo y = DEF;
+	String hello = Foo.ABC;
+	String world = Foo.DEF;
+}
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca i32, align 4
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %hello = alloca %"char[]", align 8
+  %world = alloca %"char[]", align 8
+  store i32 1, ptr %a, align 4
+  store i32 0, ptr %x, align 4
+  store i32 1, ptr %y, align 4
+  store %"char[]" { ptr @.str.2, i64 5 }, ptr %hello, align 8
+  store %"char[]" { ptr @.str.3, i64 5 }, ptr %world, align 8
+  ret void
+}
diff --git a/test/test_suite7/enumerations/introspection_data_error.c3t b/test/test_suite7/enumerations/introspection_data_error.c3t
new file mode 100644
index 000000000..6d642f7f2
--- /dev/null
+++ b/test/test_suite7/enumerations/introspection_data_error.c3t
@@ -0,0 +1,19 @@
+// #target: macos-x64
+module boom;
+enum Boom: int (String a) {
+    BOOM = {0}
+}
+
+module app;
+import std::io, boom;
+fn void main(String[] args) {
+	io::printn(Boom.BOOM);
+}
+/* #expect: boom.ll
+
+@.enum.BOOM = internal constant [5 x i8] c"BOOM\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.boom.Boom" = linkonce global { i8, i64, ptr, i64, i64, i64, [1 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.int" to i64), i64 1, [1 x %"char[]"] [%"char[]" { ptr @.enum.BOOM, i64 4 }] }, align 8
+@.__const_slice = private unnamed_addr global [1 x i8] zeroinitializer, align 1
+@"boom.Boom$a" = linkonce constant [1 x %"char[]"] [%"char[]" { ptr @.__const_slice, i64 1 }], align 8
+
diff --git a/test/test_suite7/enumerations/missing_type.c3 b/test/test_suite7/enumerations/missing_type.c3
new file mode 100644
index 000000000..6f65fdc25
--- /dev/null
+++ b/test/test_suite7/enumerations/missing_type.c3
@@ -0,0 +1,4 @@
+enum Kind : (x) // #error: A type name
+{
+	FOO (10),
+}
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/simple_inference.c3t b/test/test_suite7/enumerations/simple_inference.c3t
new file mode 100644
index 000000000..018c82eda
--- /dev/null
+++ b/test/test_suite7/enumerations/simple_inference.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+
+enum HelloEnum
+{
+    HELLO,
+    WORLD,
+    ELLOWORLD,
+}
+fn void test()
+{
+    HelloEnum h = WORLD;
+    h = ELLOWORLD;
+}
+
+/* #expect: simple_inference.ll
+
+define void @simple_inference.test() #0 {
+entry:
+  %h = alloca i32, align 4
+  store i32 1, ptr %h, align 4
+  store i32 2, ptr %h, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/enumerations/too_many_associated.c3 b/test/test_suite7/enumerations/too_many_associated.c3
new file mode 100644
index 000000000..cab918c8c
--- /dev/null
+++ b/test/test_suite7/enumerations/too_many_associated.c3
@@ -0,0 +1,9 @@
+enum Baz : (String a, int z)
+{
+  BAR = { "123", 1, 3 }, // #error: You're adding too many values, only 2 associated
+}
+
+enum Baz2 : (String a, int z)
+{
+  BAR = { "123" }, // #error: Expected 2 associated values for this enum value
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/anyfault_void.c3t b/test/test_suite7/errors/anyfault_void.c3t
new file mode 100644
index 000000000..0925f1b23
--- /dev/null
+++ b/test/test_suite7/errors/anyfault_void.c3t
@@ -0,0 +1,108 @@
+fault MyError
+{
+    FOO,
+    BAR
+}
+fn void! errorThing()
+{
+    return MyError.BAR?;
+}
+
+fn void! errorThing2()
+{
+    return;
+}
+
+extern fn void printf(char*, ...);
+fn void main()
+{
+    anyfault z = @catch(errorThing());
+    printf("Z;   %llx\n", (iptr)(z));
+    printf("BAR: %llx\n", (iptr)(MyError.BAR));
+    printf("FOO: %llx\n", (iptr)(MyError.FOO));
+    z = @catch(errorThing2());
+    printf("Z2:  %llx\n", (iptr)(z));
+}
+
+/* #expect: anyfault_void.ll
+
+define i64 @anyfault_void.errorThing() #0 {
+entry:
+  ret i64 ptrtoint (ptr @"anyfault_void.MyError$BAR" to i64)
+}
+
+define i64 @anyfault_void.errorThing2() #0 {
+entry:
+  %reterr = alloca i64, align 8
+  ret i64 0
+}
+
+declare void @printf(ptr, ...) #0
+
+define void @anyfault_void.main() #0 {
+entry:
+  %z = alloca i64, align 8
+  %blockret = alloca i64, align 8
+  %f = alloca i64, align 8
+  %blockret1 = alloca i64, align 8
+  %f2 = alloca i64, align 8
+  br label %testblock
+testblock:                                        ; preds = %entry
+  %0 = call i64 @anyfault_void.errorThing()
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %testblock
+  store i64 %0, ptr %f, align 8
+  br label %end_block
+after_check:                                      ; preds = %testblock
+  store i64 0, ptr %f, align 8
+  br label %end_block
+end_block:                                        ; preds = %after_check, %assign_optional
+  %2 = load i64, ptr %f, align 8
+  %i2b = icmp ne i64 %2, 0
+  br i1 %i2b, label %if.then, label %if.exit
+if.then:                                          ; preds = %end_block
+  %3 = load i64, ptr %f, align 8
+  store i64 %3, ptr %blockret, align 8
+  br label %expr_block.exit
+if.exit:                                          ; preds = %end_block
+  store i64 0, ptr %blockret, align 8
+  br label %expr_block.exit
+expr_block.exit:                                  ; preds = %if.exit, %if.then
+  %4 = load i64, ptr %blockret, align 8
+  store i64 %4, ptr %z, align 8
+  %5 = load i64, ptr %z, align 8
+  call void (ptr, ...) @printf(ptr @.str, i64 %5)
+  call void (ptr, ...) @printf(ptr @.str.2, i64 ptrtoint (ptr @"anyfault_void.MyError$BAR" to i64))
+  call void (ptr, ...) @printf(ptr @.str.3, i64 ptrtoint (ptr @"anyfault_void.MyError$FOO" to i64))
+  br label %testblock3
+testblock3:                                       ; preds = %expr_block.exit
+  %6 = call i64 @anyfault_void.errorThing2()
+  %not_err4 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err4, i1 true)
+  br i1 %7, label %after_check6, label %assign_optional5
+assign_optional5:                                 ; preds = %testblock3
+  store i64 %6, ptr %f2, align 8
+  br label %end_block7
+after_check6:                                     ; preds = %testblock3
+  store i64 0, ptr %f2, align 8
+  br label %end_block7
+end_block7:                                       ; preds = %after_check6, %assign_optional5
+  %8 = load i64, ptr %f2, align 8
+  %i2b8 = icmp ne i64 %8, 0
+  br i1 %i2b8, label %if.then9, label %if.exit10
+if.then9:                                         ; preds = %end_block7
+  %9 = load i64, ptr %f2, align 8
+  store i64 %9, ptr %blockret1, align 8
+  br label %expr_block.exit11
+if.exit10:                                        ; preds = %end_block7
+  store i64 0, ptr %blockret1, align 8
+  br label %expr_block.exit11
+expr_block.exit11:                                ; preds = %if.exit10, %if.then9
+  %10 = load i64, ptr %blockret1, align 8
+  store i64 %10, ptr %z, align 8
+  %11 = load i64, ptr %z, align 8
+  call void (ptr, ...) @printf(ptr @.str.4, i64 %11)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/bitshift_failable.c3 b/test/test_suite7/errors/bitshift_failable.c3
new file mode 100644
index 000000000..61ab084c9
--- /dev/null
+++ b/test/test_suite7/errors/bitshift_failable.c3
@@ -0,0 +1,5 @@
+fn void test()
+{
+    int! x = 0;
+    int! z = x << 100; // #error: the bitsize of 'int'
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/else_checks.c3t b/test/test_suite7/errors/else_checks.c3t
new file mode 100644
index 000000000..26a4e405d
--- /dev/null
+++ b/test/test_suite7/errors/else_checks.c3t
@@ -0,0 +1,119 @@
+// #target: macos-x64
+
+extern fn int! testError();
+
+fn void test()
+{
+
+    double x = ((double)testError() + testError()) ?? 100;
+    double y = (1 << testError()) ?? 100;
+    double z = testError() >> 1 ?? 100;
+    double w = (double)testError() * testError() ?? 100;
+}
+
+/* #expect: else_checks.ll
+
+
+declare i64 @testError(ptr) #0
+
+
+define void @else_checks.test() #0 {
+entry:
+  %x = alloca double, align 8
+  %retparam = alloca i32, align 4
+  %retparam1 = alloca i32, align 4
+  %y = alloca double, align 8
+  %retparam5 = alloca i32, align 4
+  %z = alloca double, align 8
+  %retparam12 = alloca i32, align 4
+  %w = alloca double, align 8
+  %retparam19 = alloca i32, align 4
+  %retparam23 = alloca i32, align 4
+  %0 = call i64 @testError(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %2 = load i32, ptr %retparam, align 4
+  %sifp = sitofp i32 %2 to double
+  %3 = call i64 @testError(ptr %retparam1)
+  %not_err2 = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %4, label %after_check3, label %else_block
+
+after_check3:                                     ; preds = %after_check
+  %5 = load i32, ptr %retparam1, align 4
+  %sifp4 = sitofp i32 %5 to double
+  %fadd = fadd double %sifp, %sifp4
+  br label %phi_block
+
+else_block:                                       ; preds = %after_check, %entry
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %after_check3
+  %val = phi double [ %fadd, %after_check3 ], [ 1.000000e+02, %else_block ]
+  store double %val, ptr %x, align 8
+  %6 = call i64 @testError(ptr %retparam5)
+  %not_err6 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err6, i1 true)
+  br i1 %7, label %after_check7, label %else_block9
+
+after_check7:                                     ; preds = %phi_block
+  %8 = load i32, ptr %retparam5, align 4
+  %shl = shl i32 1, %8
+  %9 = freeze i32 %shl
+  %sifp8 = sitofp i32 %9 to double
+  br label %phi_block10
+
+else_block9:                                      ; preds = %phi_block
+  br label %phi_block10
+
+phi_block10:                                      ; preds = %else_block9, %after_check7
+  %val11 = phi double [ %sifp8, %after_check7 ], [ 1.000000e+02, %else_block9 ]
+  store double %val11, ptr %y, align 8
+  %10 = call i64 @testError(ptr %retparam12)
+  %not_err13 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
+  br i1 %11, label %after_check14, label %else_block16
+
+after_check14:                                    ; preds = %phi_block10
+  %12 = load i32, ptr %retparam12, align 4
+  %ashr = ashr i32 %12, 1
+  %13 = freeze i32 %ashr
+  %sifp15 = sitofp i32 %13 to double
+  br label %phi_block17
+
+else_block16:                                     ; preds = %phi_block10
+  br label %phi_block17
+
+phi_block17:                                      ; preds = %else_block16, %after_check14
+  %val18 = phi double [ %sifp15, %after_check14 ], [ 1.000000e+02, %else_block16 ]
+  store double %val18, ptr %z, align 8
+  %14 = call i64 @testError(ptr %retparam19)
+  %not_err20 = icmp eq i64 %14, 0
+  %15 = call i1 @llvm.expect.i1(i1 %not_err20, i1 true)
+  br i1 %15, label %after_check21, label %else_block27
+
+after_check21:                                    ; preds = %phi_block17
+  %16 = load i32, ptr %retparam19, align 4
+  %sifp22 = sitofp i32 %16 to double
+  %17 = call i64 @testError(ptr %retparam23)
+  %not_err24 = icmp eq i64 %17, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %18, label %after_check25, label %else_block27
+
+after_check25:                                    ; preds = %after_check21
+  %19 = load i32, ptr %retparam23, align 4
+  %sifp26 = sitofp i32 %19 to double
+  %fmul = fmul double %sifp22, %sifp26
+  br label %phi_block28
+
+else_block27:                                     ; preds = %after_check21, %phi_block17
+  br label %phi_block28
+
+phi_block28:                                      ; preds = %else_block27, %after_check25
+  %val29 = phi double [ %fmul, %after_check25 ], [ 1.000000e+02, %else_block27 ]
+  store double %val29, ptr %w, align 8
+  ret void
+}
diff --git a/test/test_suite7/errors/else_struct.c3t b/test/test_suite7/errors/else_struct.c3t
new file mode 100644
index 000000000..b12f4513d
--- /dev/null
+++ b/test/test_suite7/errors/else_struct.c3t
@@ -0,0 +1,65 @@
+// #target: macos-x64
+module test;
+struct Foo
+{
+	int[30] a;
+}
+
+fn void test()
+{
+	int! a = 0;
+	Foo! b = {};
+	Foo c;
+
+	int e = a ?? 1;
+	Foo d = b ?? c;
+	return;
+}
+
+/* #expect: test.ll
+
+define void @test.test() #0 {
+entry:
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %b = alloca %Foo, align 4
+  %b.f = alloca i64, align 8
+  %c = alloca %Foo, align 4
+  %e = alloca i32, align 4
+  %d = alloca %Foo, align 4
+  store i32 0, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  call void @llvm.memset.p0.i64(ptr align 4 %b, i8 0, i64 120, i1 false)
+  store i64 0, ptr %b.f, align 8
+  call void @llvm.memset.p0.i64(ptr align 4 %c, i8 0, i64 120, i1 false)
+  %optval = load i64, ptr %a.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %a, align 4
+  br label %phi_block
+
+else_block:                                       ; preds = %entry
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %after_check
+  %val = phi i32 [ %1, %after_check ], [ 1, %else_block ]
+  store i32 %val, ptr %e, align 4
+  %optval1 = load i64, ptr %b.f, align 8
+  %not_err2 = icmp eq i64 %optval1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %2, label %after_check3, label %else_block4
+
+after_check3:                                     ; preds = %phi_block
+  br label %phi_block5
+
+else_block4:                                      ; preds = %phi_block
+  br label %phi_block5
+
+phi_block5:                                       ; preds = %else_block4, %after_check3
+  %val6 = phi ptr [ %b, %after_check3 ], [ %c, %else_block4 ]
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %d, ptr align 8 %val6, i32 120, i1 false)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/else_unreachable.c3t b/test/test_suite7/errors/else_unreachable.c3t
new file mode 100644
index 000000000..6e9cb3199
--- /dev/null
+++ b/test/test_suite7/errors/else_unreachable.c3t
@@ -0,0 +1,39 @@
+// #target: macos-x64
+module test;
+import std;
+// Issue #1913
+fn void main()
+{
+	char[] bytes = file::load_temp("config.json") ?? abort("Unable to open config.json file");
+	int hello;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %bytes = alloca %"char[]", align 8
+  %retparam = alloca %"char[]", align 8
+  %blockret = alloca %"char[]", align 8
+  %indirectarg = alloca %"any[]", align 8
+  %hello = alloca i32, align 4
+  %0 = call i64 @std.io.file.load_temp(ptr %retparam, ptr @.str, i64 11)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %2 = load %"char[]", ptr %retparam, align 8
+  br label %phi_block
+
+else_block:                                       ; preds = %entry
+  store %"any[]" zeroinitializer, ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(ptr @.str.1, i64 31, ptr @.str.2, i64 19, ptr @.str.3, i64 4, i32 6, ptr byval(%"any[]") align 8 %indirectarg)
+  call void @llvm.trap()
+  unreachable
+
+phi_block:                                        ; preds = %after_check
+  store %"char[]" %2, ptr %bytes, align 8
+  store i32 0, ptr %hello, align 4
+  ret void
+}
diff --git a/test/test_suite7/errors/else_unreachable_in_block.c3 b/test/test_suite7/errors/else_unreachable_in_block.c3
new file mode 100644
index 000000000..b0d0ac5d9
--- /dev/null
+++ b/test/test_suite7/errors/else_unreachable_in_block.c3
@@ -0,0 +1,9 @@
+// #deprecation: no
+module test;
+import std;
+fn void main()
+{
+	char[] bytes = file::load_temp("config.json") ?? {| abort("Unable to open config.json file"); // #error: Cannot find a common type for 'char[]' and 'void'
+		return {}; |}; // #warning: This code will never execute.
+	char[] bytes2;
+}
diff --git a/test/test_suite7/errors/empty_fault.c3 b/test/test_suite7/errors/empty_fault.c3
new file mode 100644
index 000000000..855ecfbb5
--- /dev/null
+++ b/test/test_suite7/errors/empty_fault.c3
@@ -0,0 +1,4 @@
+module test;
+fault Foo
+{
+}  // #error: no values
\ No newline at end of file
diff --git a/test/test_suite7/errors/error_decl_ok.c3 b/test/test_suite7/errors/error_decl_ok.c3
new file mode 100644
index 000000000..a17338068
--- /dev/null
+++ b/test/test_suite7/errors/error_decl_ok.c3
@@ -0,0 +1,19 @@
+module errors;
+
+fault TheError
+{
+    A
+}
+
+fault TheError2
+{
+    A,
+    B
+}
+
+fault TheError3
+{
+    C, D
+}
+
+
diff --git a/test/test_suite7/errors/error_else.c3t b/test/test_suite7/errors/error_else.c3t
new file mode 100644
index 000000000..c818323fd
--- /dev/null
+++ b/test/test_suite7/errors/error_else.c3t
@@ -0,0 +1,22 @@
+module foo;
+
+fault Baz
+{
+	TEST
+}
+
+module bar;
+import foo;
+
+fn int! abc()
+{
+	return Baz.TEST?;
+}
+
+module baz;
+import foo;
+
+fn int! abc()
+{
+	return Baz.TEST?;
+}
diff --git a/test/test_suite7/errors/error_introspect.c3t b/test/test_suite7/errors/error_introspect.c3t
new file mode 100644
index 000000000..9dd2e1bf6
--- /dev/null
+++ b/test/test_suite7/errors/error_introspect.c3t
@@ -0,0 +1,72 @@
+// #target: macos-x64
+module foo;
+import std::io;
+
+fault Foo
+{
+    BAR,
+    BAZ
+}
+
+fn void main()
+{
+  String[] x = Foo.names;
+  io::printfn("Foo.names: %s", x);
+  io::printfn("Foo.values: %s", Foo.values);
+  io::printfn("Foo.elements: %s", Foo.elements);
+}
+
+/* #expect: foo.ll
+
+@"foo.Foo$BAR" = linkonce constant %.fault { i64 ptrtoint (ptr @"$ct.foo.Foo" to i64), %"char[]" { ptr @.fault, i64 3 }, i64 1 }, align 8
+@.fault = internal constant [4 x i8] c"BAR\00", align 1
+@"foo.Foo$BAZ" = linkonce constant %.fault { i64 ptrtoint (ptr @"$ct.foo.Foo" to i64), %"char[]" { ptr @.fault.1, i64 3 }, i64 2 }, align 8
+@.fault.1 = internal constant [4 x i8] c"BAZ\00", align 1
+@"$ct.foo.Foo" = linkonce global %.introspect { i8 9, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [4 x i8] c"BAR\00", align 1
+@.str.2 = private unnamed_addr constant [4 x i8] c"BAZ\00", align 1
+@.__const = private unnamed_addr constant [2 x %"char[]"] [%"char[]" { ptr @.str, i64 3 }, %"char[]" { ptr @.str.2, i64 3 }], align 16
+@.str.3 = private unnamed_addr constant [14 x i8] c"Foo.names: %s\00", align 1
+@"$ct.sa$String" = linkonce global %.introspect { i8 16, i64 0, ptr null, i64 16, i64 ptrtoint (ptr @"$ct.String" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.String" = linkonce global %.introspect { i8 18, i64 ptrtoint (ptr @"$ct.sa$char" to i64), ptr null, i64 16, i64 ptrtoint (ptr @"$ct.sa$char" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.sa$char" = linkonce global %.introspect { i8 16, i64 0, ptr null, i64 16, i64 ptrtoint (ptr @"$ct.char" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.char" = linkonce global %.introspect { i8 3, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.str.4 = private unnamed_addr constant [15 x i8] c"Foo.values: %s\00", align 1
+@.__const.5 = private unnamed_addr constant [2 x i64] [i64 ptrtoint (ptr @"foo.Foo$BAR" to i64), i64 ptrtoint (ptr @"foo.Foo$BAZ" to i64)], align 16
+@"$ct.a2$foo.Foo" = linkonce global %.introspect { i8 15, i64 0, ptr null, i64 16, i64 ptrtoint (ptr @"$ct.foo.Foo" to i64), i64 2, [0 x i64] zeroinitializer }, align 8
+@.str.6 = private unnamed_addr constant [17 x i8] c"Foo.elements: %s\00", align 1
+@"$ct.long" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 8, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %x = alloca %"char[][]", align 8
+  %literal = alloca [2 x %"char[]"], align 16
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %varargslots1 = alloca [1 x %any], align 16
+  %literal2 = alloca [2 x i64], align 16
+  %retparam3 = alloca i64, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %taddr = alloca i64, align 8
+  %retparam5 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 16 @.__const, i32 32, i1 false)
+  %0 = insertvalue %"char[][]" undef, ptr %literal, 0
+  %1 = insertvalue %"char[][]" %0, i64 2, 1
+  store %"char[][]" %1, ptr %x, align 8
+  %2 = insertvalue %any undef, ptr %x, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.sa$String" to i64), 1
+  store %any %3, ptr %varargslots, align 16
+  %4 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.3, i64 13, ptr %varargslots, i64 1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal2, ptr align 16 @.__const.5, i32 16, i1 false)
+  %5 = insertvalue %any undef, ptr %literal2, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.a2$foo.Foo" to i64), 1
+  store %any %6, ptr %varargslots1, align 16
+  %7 = call i64 @std.io.printfn(ptr %retparam3, ptr @.str.4, i64 14, ptr %varargslots1, i64 1)
+  store i64 2, ptr %taddr, align 8
+  %8 = insertvalue %any undef, ptr %taddr, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %9, ptr %varargslots4, align 16
+  %10 = call i64 @std.io.printfn(ptr %retparam5, ptr @.str.6, i64 16, ptr %varargslots4, i64 1)
+  ret void
+}
diff --git a/test/test_suite7/errors/error_regression_2.c3t b/test/test_suite7/errors/error_regression_2.c3t
new file mode 100644
index 000000000..12649f621
--- /dev/null
+++ b/test/test_suite7/errors/error_regression_2.c3t
@@ -0,0 +1,835 @@
+// #target: macos-x64
+module test;
+import std;
+import libc;
+
+struct Doc { Head *head; }
+struct Head { char[]* title; }
+
+struct Summary
+{
+	char[]* title;
+	bool ok;
+}
+
+fn void Summary.print(Summary *s, CFile out)
+{
+	// We don't have a native printf in C3 yet, so use libc,
+	// which is not all that nice for the strings but...
+	char[] title = s.title ? *s.title : "missing";
+	libc::fprintf(out, "Summary({ .title = %.*s, .ok = %s})", (int)title.len, title.ptr, s.ok ? (char*)"true" : (char*)"false");
+}
+
+fn bool contains(char[] haystack, char[] needle)
+{
+	usz len = haystack.len;
+	usz needle_len = needle.len;
+	if (len < needle_len) return false;
+	if (!needle_len) return true;
+	len -= needle_len - 1;
+	for (usz i = 0; i < len; i++)
+	{
+		if (libc::memcmp(&haystack[i], needle.ptr, needle_len) == 0)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
+macro dupe(value)
+{
+	$typeof(&value) temp = malloc($sizeof(value));
+	if (!temp) return ReadError.OUT_OF_MEMORY?;
+	*temp = value;
+	return temp;
+}
+
+fault ReadError
+{
+	BAD_READ,
+	OUT_OF_MEMORY
+}
+
+fn Doc! readDoc(char[] url)
+{
+	if (contains(url, "fail")) return ReadError.BAD_READ?;
+	if (contains(url, "head-missing")) return { .head = null };
+	if (contains(url, "title-missing")) return { dupe((Head) { .title = null })! };
+	if (contains(url, "title-empty")) return { dupe((Head) { .title = dupe((char[])"")! })! };
+	// Not particularly elegant due to missing string functions.
+	isz len = libc::snprintf(null, 0, "Title of %.*s", (int)url.len, url.ptr);
+	char* str = malloc(len + 1);
+	if (!str) return ReadError.OUT_OF_MEMORY?;
+	libc::snprintf(str, len + 1, "Title of %.*s", (int)url.len, url.ptr);
+	return { dupe((Head) { .title = dupe(str[..len - 1])! })! };
+}
+
+fn Summary buildSummary(Doc doc)
+{
+    return {
+        .title = doc.head ? doc.head.title : null,
+        .ok = true,
+    };
+}
+
+fn Summary readAndBuildSummary(char[] url)
+{
+	return buildSummary(readDoc(url)) ?? (Summary) { .title = null, .ok = false };
+	/*
+	// or
+	Summary summary = buildSummary(readDoc(url));
+	if (catch summary) return Summary { .title = null, .ok = false };
+	return summary;
+	// or
+	Summary summary = buildSummary(readDoc(url));
+	if (try summary) return summary;
+	return Summary { .title = null, .ok = false };
+	*/
+}
+
+
+fault TitleResult
+{
+	TITLE_MISSING
+}
+
+fn bool! isTitleNonEmpty(Doc doc)
+{
+	if (!doc.head) return TitleResult.TITLE_MISSING?;
+	char[]* head = doc.head.title;
+	if (!head) return TitleResult.TITLE_MISSING?;
+	return (*head).len > 0;
+}
+
+
+fn bool! readWhetherTitleNonEmpty(char[] url)
+{
+    return isTitleNonEmpty(readDoc(url));
+}
+
+fn char* bool_to_string(bool b)
+{
+	return b ? "true" : "false";
+}
+fn char* nameFromError(anyfault e)
+{
+	switch (e)
+	{
+		case TitleResult.TITLE_MISSING:
+			return "no title";
+		case ReadError.BAD_READ:
+			return "bad read";
+		case ReadError.OUT_OF_MEMORY:
+			return "out of memory";
+		default:
+			return "unknown error";
+	}
+}
+
+
+fn void main()
+{
+    const char[][] URLS = { "good", "title-empty", "title-missing", "head-missing", "fail" };
+    foreach (char[] url : URLS)
+    {
+        // Yes, it's pretty onerous to print strings for the moment in C3
+        libc::printf(`Checking "https://%.*s/":` "\n", (int)url.len, url.ptr);
+        Summary summary = readAndBuildSummary(url);
+        libc::printf("  Summary: ");
+        summary.print(libc::stdout());
+        libc::printf("\n");
+        char[] title_sure = summary.title ? *summary.title : "";
+        libc::printf("  Title: %.*s\n", (int)title_sure.len, title_sure.ptr);
+        bool! has_title = readWhetherTitleNonEmpty(url);
+        // This looks a bit less than elegant, but as you see it's mostly due to having to
+        // use printf here.
+        libc::printf("  Has title: %s vs %s\n", bool_to_string(has_title) ?? nameFromError(@catch(has_title)), (has_title ?? false) ? (char*)"true" : (char*)"false");
+    }
+}
+
+/* #expect: test.ll
+
+define void @test.Summary.print(ptr %0, ptr %1) #0 {
+entry:
+  %title = alloca %"char[]", align 8
+  %2 = load ptr, ptr %0, align 8
+  %i2b = icmp ne ptr %2, null
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  %3 = load ptr, ptr %0, align 8
+  %4 = load %"char[]", ptr %3, align 8
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi %"char[]" [ %4, %cond.lhs ], [ { ptr @.str.28, i64 7 }, %cond.rhs ]
+  store %"char[]" %val, ptr %title, align 8
+  %ptradd = getelementptr inbounds i8, ptr %title, i64 8
+  %5 = load i64, ptr %ptradd, align 8
+  %trunc = trunc i64 %5 to i32
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 8
+  %6 = load i8, ptr %ptradd1, align 8
+  %7 = trunc i8 %6 to i1
+  %ternary = select i1 %7, ptr @.str.30, ptr @.str.31
+  %8 = load ptr, ptr %title, align 8
+  %9 = call i32 (ptr, ptr, ...) @fprintf(ptr %1, ptr @.str.29, i32 %trunc, ptr %8, ptr %ternary)
+  ret void
+}
+
+; Function Attrs:
+define zeroext i8 @test.contains(ptr %0, i64 %1, ptr %2, i64 %3) #0 {
+entry:
+  %haystack = alloca %"char[]", align 8
+  %needle = alloca %"char[]", align 8
+  %len = alloca i64, align 8
+  %needle_len = alloca i64, align 8
+  %i = alloca i64, align 8
+  store ptr %0, ptr %haystack, align 8
+  %ptradd = getelementptr inbounds i8, ptr %haystack, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  store ptr %2, ptr %needle, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %needle, i64 8
+  store i64 %3, ptr %ptradd1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %haystack, i64 8
+  %4 = load i64, ptr %ptradd2, align 8
+  store i64 %4, ptr %len, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %needle, i64 8
+  %5 = load i64, ptr %ptradd3, align 8
+  store i64 %5, ptr %needle_len, align 8
+  %6 = load i64, ptr %len, align 8
+  %7 = load i64, ptr %needle_len, align 8
+  %lt = icmp ult i64 %6, %7
+  br i1 %lt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i8 0
+
+if.exit:                                          ; preds = %entry
+  %8 = load i64, ptr %needle_len, align 8
+  %i2nb = icmp eq i64 %8, 0
+  br i1 %i2nb, label %if.then4, label %if.exit5
+
+if.then4:                                         ; preds = %if.exit
+  ret i8 1
+
+if.exit5:                                         ; preds = %if.exit
+  %9 = load i64, ptr %len, align 8
+  %10 = load i64, ptr %needle_len, align 8
+  %sub = sub i64 %10, 1
+  %sub6 = sub i64 %9, %sub
+  store i64 %sub6, ptr %len, align 8
+  store i64 0, ptr %i, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %if.exit10, %if.exit5
+  %11 = load i64, ptr %i, align 8
+  %12 = load i64, ptr %len, align 8
+  %lt7 = icmp ult i64 %11, %12
+  br i1 %lt7, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %13 = load ptr, ptr %haystack, align 8
+  %14 = load i64, ptr %i, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %13, i64 %14
+  %15 = load ptr, ptr %needle, align 8
+  %16 = load i64, ptr %needle_len, align 8
+  %17 = call i32 @memcmp(ptr %ptradd8, ptr %15, i64 %16)
+  %eq = icmp eq i32 %17, 0
+  br i1 %eq, label %if.then9, label %if.exit10
+
+if.then9:                                         ; preds = %loop.body
+  ret i8 1
+
+if.exit10:                                        ; preds = %loop.body
+  %18 = load i64, ptr %i, align 8
+  %add = add i64 %18, 1
+  store i64 %add, ptr %i, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret i8 0
+}
+
+; Function Attrs:
+define i64 @test.readDoc(ptr %0, ptr %1, i64 %2) #0 {
+entry:
+  %url = alloca %"char[]", align 8
+  %reterr = alloca i64, align 8
+  %literal = alloca %Doc, align 8
+  %reterr11 = alloca i64, align 8
+  %literal12 = alloca %Doc, align 8
+  %error_var = alloca i64, align 8
+  %literal13 = alloca %Head, align 8
+  %value = alloca %Head, align 8
+  %temp = alloca ptr, align 8
+  %reterr21 = alloca i64, align 8
+  %literal22 = alloca %Doc, align 8
+  %error_var23 = alloca i64, align 8
+  %literal24 = alloca %Head, align 8
+  %error_var25 = alloca i64, align 8
+  %value26 = alloca %"char[]", align 8
+  %temp27 = alloca ptr, align 8
+  %value33 = alloca %Head, align 8
+  %temp34 = alloca ptr, align 8
+  %len = alloca i64, align 8
+  %str = alloca ptr, align 8
+  %reterr48 = alloca i64, align 8
+  %literal49 = alloca %Doc, align 8
+  %error_var50 = alloca i64, align 8
+  %literal51 = alloca %Head, align 8
+  %error_var52 = alloca i64, align 8
+  %value53 = alloca %"char[]", align 8
+  %temp54 = alloca ptr, align 8
+  %value60 = alloca %Head, align 8
+  %temp61 = alloca ptr, align 8
+  store ptr %1, ptr %url, align 8
+  %ptradd = getelementptr inbounds i8, ptr %url, i64 8
+  store i64 %2, ptr %ptradd, align 8
+  %lo = load ptr, ptr %url, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi = load i64, ptr %ptradd1, align 8
+  %3 = call i8 @test.contains(ptr %lo, i64 %hi, ptr @.str, i64 4)
+  %4 = trunc i8 %3 to i1
+  br i1 %4, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i64 ptrtoint (ptr @"test.ReadError$BAD_READ" to i64)
+
+if.exit:                                          ; preds = %entry
+  %lo2 = load ptr, ptr %url, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi4 = load i64, ptr %ptradd3, align 8
+  %5 = call i8 @test.contains(ptr %lo2, i64 %hi4, ptr @.str.3, i64 12)
+  %6 = trunc i8 %5 to i1
+  br i1 %6, label %if.then5, label %if.exit6
+
+if.then5:                                         ; preds = %if.exit
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 8, i1 false)
+  ret i64 0
+
+if.exit6:                                         ; preds = %if.exit
+  %lo7 = load ptr, ptr %url, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi9 = load i64, ptr %ptradd8, align 8
+  %7 = call i8 @test.contains(ptr %lo7, i64 %hi9, ptr @.str.4, i64 13)
+  %8 = trunc i8 %7 to i1
+  br i1 %8, label %if.then10, label %if.exit16
+
+if.then10:                                        ; preds = %if.exit6
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal13, ptr align 8 @.__const.5, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value, ptr align 8 %literal13, i32 8, i1 false)
+  %9 = call ptr @std.core.mem.malloc(i64 8) #3
+  store ptr %9, ptr %temp, align 8
+  %10 = load ptr, ptr %temp, align 8
+  %i2nb = icmp eq ptr %10, null
+  br i1 %i2nb, label %if.then14, label %if.exit15
+
+if.then14:                                        ; preds = %if.then10
+  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var, align 8
+  br label %guard_block
+
+if.exit15:                                        ; preds = %if.then10
+  %11 = load ptr, ptr %temp, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %11, ptr align 8 %value, i32 8, i1 false)
+  br label %noerr_block
+
+guard_block:                                      ; preds = %if.then14
+  %12 = load i64, ptr %error_var, align 8
+  ret i64 %12
+
+noerr_block:                                      ; preds = %if.exit15
+  %13 = load ptr, ptr %temp, align 8
+  store ptr %13, ptr %literal12, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal12, i32 8, i1 false)
+  ret i64 0
+
+if.exit16:                                        ; preds = %if.exit6
+  %lo17 = load ptr, ptr %url, align 8
+  %ptradd18 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi19 = load i64, ptr %ptradd18, align 8
+  %14 = call i8 @test.contains(ptr %lo17, i64 %hi19, ptr @.str.6, i64 11)
+  %15 = trunc i8 %14 to i1
+  br i1 %15, label %if.then20, label %if.exit40
+
+if.then20:                                        ; preds = %if.exit16
+  store ptr null, ptr %literal24, align 8
+  store %"char[]" zeroinitializer, ptr %value26, align 8
+  %16 = call ptr @std.core.mem.malloc(i64 16) #3
+  store ptr %16, ptr %temp27, align 8
+  %17 = load ptr, ptr %temp27, align 8
+  %i2nb28 = icmp eq ptr %17, null
+  br i1 %i2nb28, label %if.then29, label %if.exit30
+
+if.then29:                                        ; preds = %if.then20
+  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var25, align 8
+  br label %guard_block31
+
+if.exit30:                                        ; preds = %if.then20
+  %18 = load ptr, ptr %temp27, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %18, ptr align 8 %value26, i32 16, i1 false)
+  br label %noerr_block32
+
+guard_block31:                                    ; preds = %if.then29
+  %19 = load i64, ptr %error_var25, align 8
+  ret i64 %19
+
+noerr_block32:                                    ; preds = %if.exit30
+  %20 = load ptr, ptr %temp27, align 8
+  store ptr %20, ptr %literal24, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value33, ptr align 8 %literal24, i32 8, i1 false)
+  %21 = call ptr @std.core.mem.malloc(i64 8) #3
+  store ptr %21, ptr %temp34, align 8
+  %22 = load ptr, ptr %temp34, align 8
+  %i2nb35 = icmp eq ptr %22, null
+  br i1 %i2nb35, label %if.then36, label %if.exit37
+
+if.then36:                                        ; preds = %noerr_block32
+  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var23, align 8
+  br label %guard_block38
+
+if.exit37:                                        ; preds = %noerr_block32
+  %23 = load ptr, ptr %temp34, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %23, ptr align 8 %value33, i32 8, i1 false)
+  br label %noerr_block39
+
+guard_block38:                                    ; preds = %if.then36
+  %24 = load i64, ptr %error_var23, align 8
+  ret i64 %24
+
+noerr_block39:                                    ; preds = %if.exit37
+  %25 = load ptr, ptr %temp34, align 8
+  store ptr %25, ptr %literal22, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal22, i32 8, i1 false)
+  ret i64 0
+
+if.exit40:                                        ; preds = %if.exit16
+  %ptradd41 = getelementptr inbounds i8, ptr %url, i64 8
+  %26 = load i64, ptr %ptradd41, align 8
+  %trunc = trunc i64 %26 to i32
+  %27 = load ptr, ptr %url, align 8
+  %28 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr null, i64 0, ptr @.str.7, i32 %trunc, ptr %27)
+  %sext = sext i32 %28 to i64
+  store i64 %sext, ptr %len, align 8
+  %29 = load i64, ptr %len, align 8
+  %add = add i64 %29, 1
+  %30 = call ptr @std.core.mem.malloc(i64 %add) #3
+  store ptr %30, ptr %str, align 8
+  %31 = load ptr, ptr %str, align 8
+  %i2nb42 = icmp eq ptr %31, null
+  br i1 %i2nb42, label %if.then43, label %if.exit44
+
+if.then43:                                        ; preds = %if.exit40
+  ret i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64)
+
+if.exit44:                                        ; preds = %if.exit40
+  %32 = load i64, ptr %len, align 8
+  %add45 = add i64 %32, 1
+  %ptradd46 = getelementptr inbounds i8, ptr %url, i64 8
+  %33 = load i64, ptr %ptradd46, align 8
+  %trunc47 = trunc i64 %33 to i32
+  %34 = load ptr, ptr %str, align 8
+  %35 = load ptr, ptr %url, align 8
+  %36 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr %34, i64 %add45, ptr @.str.8, i32 %trunc47, ptr %35)
+  store ptr null, ptr %literal51, align 8
+  %37 = load ptr, ptr %str, align 8
+  %38 = load i64, ptr %len, align 8
+  %sub = sub i64 %38, 1
+  %39 = add i64 %sub, 1
+  %size = sub i64 %39, 0
+  %40 = insertvalue %"char[]" undef, ptr %37, 0
+  %41 = insertvalue %"char[]" %40, i64 %size, 1
+  store %"char[]" %41, ptr %value53, align 8
+  %42 = call ptr @std.core.mem.malloc(i64 16) #3
+  store ptr %42, ptr %temp54, align 8
+  %43 = load ptr, ptr %temp54, align 8
+  %i2nb55 = icmp eq ptr %43, null
+  br i1 %i2nb55, label %if.then56, label %if.exit57
+
+if.then56:                                        ; preds = %if.exit44
+  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var52, align 8
+  br label %guard_block58
+
+if.exit57:                                        ; preds = %if.exit44
+  %44 = load ptr, ptr %temp54, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %44, ptr align 8 %value53, i32 16, i1 false)
+  br label %noerr_block59
+
+guard_block58:                                    ; preds = %if.then56
+  %45 = load i64, ptr %error_var52, align 8
+  ret i64 %45
+
+noerr_block59:                                    ; preds = %if.exit57
+  %46 = load ptr, ptr %temp54, align 8
+  store ptr %46, ptr %literal51, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value60, ptr align 8 %literal51, i32 8, i1 false)
+  %47 = call ptr @std.core.mem.malloc(i64 8) #3
+  store ptr %47, ptr %temp61, align 8
+  %48 = load ptr, ptr %temp61, align 8
+  %i2nb62 = icmp eq ptr %48, null
+  br i1 %i2nb62, label %if.then63, label %if.exit64
+
+if.then63:                                        ; preds = %noerr_block59
+  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var50, align 8
+  br label %guard_block65
+
+if.exit64:                                        ; preds = %noerr_block59
+  %49 = load ptr, ptr %temp61, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %49, ptr align 8 %value60, i32 8, i1 false)
+  br label %noerr_block66
+
+guard_block65:                                    ; preds = %if.then63
+  %50 = load i64, ptr %error_var50, align 8
+  ret i64 %50
+
+noerr_block66:                                    ; preds = %if.exit64
+  %51 = load ptr, ptr %temp61, align 8
+  store ptr %51, ptr %literal49, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal49, i32 8, i1 false)
+  ret i64 0
+}
+
+; Function Attrs:
+define { ptr, i8 } @test.buildSummary(ptr %0) #0 {
+entry:
+  %doc = alloca %Doc, align 8
+  %literal = alloca %Summary, align 8
+  store ptr %0, ptr %doc, align 8
+  store ptr null, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 8
+  store i8 0, ptr %ptradd, align 8
+  %1 = load ptr, ptr %doc, align 8
+  %i2b = icmp ne ptr %1, null
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  %2 = load ptr, ptr %doc, align 8
+  %3 = load ptr, ptr %2, align 8
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi ptr [ %3, %cond.lhs ], [ null, %cond.rhs ]
+  store ptr %val, ptr %literal, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %literal, i64 8
+  store i8 1, ptr %ptradd1, align 8
+  %4 = load { ptr, i8 }, ptr %literal, align 8
+  ret { ptr, i8 } %4
+}
+
+; Function Attrs:
+define { ptr, i8 } @test.readAndBuildSummary(ptr %0, i64 %1) #0 {
+entry:
+  %url = alloca %"char[]", align 8
+  %retparam = alloca %Doc, align 8
+  %result = alloca %Summary, align 8
+  %literal = alloca %Summary, align 8
+  store ptr %0, ptr %url, align 8
+  %ptradd = getelementptr inbounds i8, ptr %url, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %lo = load ptr, ptr %url, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi = load i64, ptr %ptradd1, align 8
+  %2 = call i64 @test.readDoc(ptr %retparam, ptr %lo, i64 %hi)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %4 = load ptr, ptr %retparam, align 8
+  %5 = call { ptr, i8 } @test.buildSummary(ptr %4)
+  store { ptr, i8 } %5, ptr %result, align 8
+  br label %phi_block
+
+else_block:                                       ; preds = %entry
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.9, i32 16, i1 false)
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %after_check
+  %val = phi ptr [ %result, %after_check ], [ %literal, %else_block ]
+  %6 = load { ptr, i8 }, ptr %val, align 8
+  ret { ptr, i8 } %6
+}
+
+; Function Attrs:
+define i64 @test.isTitleNonEmpty(ptr %0, ptr %1) #0 {
+entry:
+  %doc = alloca %Doc, align 8
+  %head = alloca ptr, align 8
+  %reterr = alloca i64, align 8
+  store ptr %1, ptr %doc, align 8
+  %2 = load ptr, ptr %doc, align 8
+  %i2nb = icmp eq ptr %2, null
+  br i1 %i2nb, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i64 ptrtoint (ptr @"test.TitleResult$TITLE_MISSING" to i64)
+
+if.exit:                                          ; preds = %entry
+  %3 = load ptr, ptr %doc, align 8
+  %4 = load ptr, ptr %3, align 8
+  store ptr %4, ptr %head, align 8
+  %5 = load ptr, ptr %head, align 8
+  %i2nb1 = icmp eq ptr %5, null
+  br i1 %i2nb1, label %if.then2, label %if.exit3
+
+if.then2:                                         ; preds = %if.exit
+  ret i64 ptrtoint (ptr @"test.TitleResult$TITLE_MISSING" to i64)
+
+if.exit3:                                         ; preds = %if.exit
+  %6 = load ptr, ptr %head, align 8
+  %ptradd = getelementptr inbounds i8, ptr %6, i64 8
+  %7 = load i64, ptr %ptradd, align 8
+  %lt = icmp ult i64 0, %7
+  %8 = zext i1 %lt to i8
+  store i8 %8, ptr %0, align 1
+  ret i64 0
+}
+
+; Function Attrs:
+define i64 @test.readWhetherTitleNonEmpty(ptr %0, ptr %1, i64 %2) #0 {
+entry:
+  %url = alloca %"char[]", align 8
+  %reterr = alloca i64, align 8
+  %retparam = alloca %Doc, align 8
+  %retparam2 = alloca i8, align 1
+  store ptr %1, ptr %url, align 8
+  %ptradd = getelementptr inbounds i8, ptr %url, i64 8
+  store i64 %2, ptr %ptradd, align 8
+  %lo = load ptr, ptr %url, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi = load i64, ptr %ptradd1, align 8
+  %3 = call i64 @test.readDoc(ptr %retparam, ptr %lo, i64 %hi)
+  %not_err = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %4, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %3, ptr %reterr, align 8
+  br label %err_retblock
+
+after_check:                                      ; preds = %entry
+  %5 = load ptr, ptr %retparam, align 8
+  %6 = call i64 @test.isTitleNonEmpty(ptr %retparam2, ptr %5)
+  %not_err3 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %7, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %after_check
+  store i64 %6, ptr %reterr, align 8
+  br label %err_retblock
+
+after_check5:                                     ; preds = %after_check
+  %8 = load i8, ptr %retparam2, align 1
+  store i8 %8, ptr %0, align 1
+  ret i64 0
+
+err_retblock:                                     ; preds = %assign_optional4, %assign_optional
+  %9 = load i64, ptr %reterr, align 8
+  ret i64 %9
+}
+
+; Function Attrs:
+define ptr @test.bool_to_string(i8 zeroext %0) #0 {
+entry:
+  %1 = trunc i8 %0 to i1
+  %ternary = select i1 %1, ptr @.str.10, ptr @.str.11
+  ret ptr %ternary
+}
+
+; Function Attrs:
+define ptr @test.nameFromError(i64 %0) #0 {
+entry:
+  %switch = alloca i64, align 8
+  store i64 %0, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i64, ptr %switch, align 8
+  %eq = icmp eq i64 ptrtoint (ptr @"test.TitleResult$TITLE_MISSING" to i64), %1
+  br i1 %eq, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %switch.entry
+  ret ptr @.str.12
+
+next_if:                                          ; preds = %switch.entry
+  %eq1 = icmp eq i64 ptrtoint (ptr @"test.ReadError$BAD_READ" to i64), %1
+  br i1 %eq1, label %switch.case2, label %next_if3
+
+switch.case2:                                     ; preds = %next_if
+  ret ptr @.str.13
+
+next_if3:                                         ; preds = %next_if
+  %eq4 = icmp eq i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), %1
+  br i1 %eq4, label %switch.case5, label %next_if6
+
+switch.case5:                                     ; preds = %next_if3
+  ret ptr @.str.14
+
+next_if6:                                         ; preds = %next_if3
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if6
+  ret ptr @.str.15
+}
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %.anon = alloca i64, align 8
+  %url = alloca %"char[]", align 8
+  %summary = alloca %Summary, align 8
+  %result = alloca %Summary, align 8
+  %title_sure = alloca %"char[]", align 8
+  %has_title = alloca i8, align 1
+  %has_title.f = alloca i64, align 8
+  %retparam = alloca i8, align 1
+  %blockret = alloca i64, align 8
+  %f = alloca i64, align 8
+  %0 = load i64, ptr getelementptr inbounds (i8, ptr @main.URLS, i64 8), align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %phi_block19, %entry
+  %1 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %1, %0
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load ptr, ptr @main.URLS, align 8
+  %3 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [16 x i8], ptr %2, i64 %3
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %url, ptr align 8 %ptroffset, i32 16, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %url, i64 8
+  %4 = load i64, ptr %ptradd, align 8
+  %trunc = trunc i64 %4 to i32
+  %5 = load ptr, ptr %url, align 8
+  %6 = call i32 (ptr, ...) @printf(ptr @.str.21, i32 %trunc, ptr %5)
+  %lo = load ptr, ptr %url, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi = load i64, ptr %ptradd1, align 8
+  %7 = call { ptr, i8 } @test.readAndBuildSummary(ptr %lo, i64 %hi)
+  store { ptr, i8 } %7, ptr %result, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %summary, ptr align 8 %result, i32 16, i1 false)
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.22)
+  %9 = load ptr, ptr @__stdoutp, align 8
+  call void @test.Summary.print(ptr %summary, ptr %9)
+  %10 = call i32 (ptr, ...) @printf(ptr @.str.23)
+  %11 = load ptr, ptr %summary, align 8
+  %i2b = icmp ne ptr %11, null
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %loop.body
+  %12 = load ptr, ptr %summary, align 8
+  %13 = load %"char[]", ptr %12, align 8
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %loop.body
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi %"char[]" [ %13, %cond.lhs ], [ zeroinitializer, %cond.rhs ]
+  store %"char[]" %val, ptr %title_sure, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %title_sure, i64 8
+  %14 = load i64, ptr %ptradd2, align 8
+  %trunc3 = trunc i64 %14 to i32
+  %15 = load ptr, ptr %title_sure, align 8
+  %16 = call i32 (ptr, ...) @printf(ptr @.str.24, i32 %trunc3, ptr %15)
+  %lo4 = load ptr, ptr %url, align 8
+  %ptradd5 = getelementptr inbounds i8, ptr %url, i64 8
+  %hi6 = load i64, ptr %ptradd5, align 8
+  %17 = call i64 @test.readWhetherTitleNonEmpty(ptr %retparam, ptr %lo4, i64 %hi6)
+  %not_err = icmp eq i64 %17, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %18, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %cond.phi
+  store i64 %17, ptr %has_title.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %cond.phi
+  %19 = load i8, ptr %retparam, align 1
+  store i8 %19, ptr %has_title, align 1
+  store i64 0, ptr %has_title.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check, %assign_optional
+  %optval = load i64, ptr %has_title.f, align 8
+  %not_err7 = icmp eq i64 %optval, 0
+  %20 = call i1 @llvm.expect.i1(i1 %not_err7, i1 true)
+  br i1 %20, label %after_check8, label %else_block
+
+after_check8:                                     ; preds = %after_assign
+  %21 = load i8, ptr %has_title, align 1
+  %22 = call ptr @test.bool_to_string(i8 zeroext %21)
+  br label %phi_block
+
+else_block:                                       ; preds = %after_assign
+  br label %testblock
+
+testblock:                                        ; preds = %else_block
+  %optval9 = load i64, ptr %has_title.f, align 8
+  %not_err10 = icmp eq i64 %optval9, 0
+  %23 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %23, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %testblock
+  store i64 %optval9, ptr %f, align 8
+  br label %end_block
+
+after_check12:                                    ; preds = %testblock
+  store i64 0, ptr %f, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check12, %assign_optional11
+  %24 = load i64, ptr %f, align 8
+  %i2b13 = icmp ne i64 %24, 0
+  br i1 %i2b13, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %25 = load i64, ptr %f, align 8
+  store i64 %25, ptr %blockret, align 8
+  br label %expr_block.exit
+
+if.exit:                                          ; preds = %end_block
+  store i64 0, ptr %blockret, align 8
+  br label %expr_block.exit
+
+expr_block.exit:                                  ; preds = %if.exit, %if.then
+  %26 = load i64, ptr %blockret, align 8
+  %27 = call ptr @test.nameFromError(i64 %26)
+  br label %phi_block
+
+phi_block:                                        ; preds = %expr_block.exit, %after_check8
+  %val14 = phi ptr [ %22, %after_check8 ], [ %27, %expr_block.exit ]
+  %optval15 = load i64, ptr %has_title.f, align 8
+  %not_err16 = icmp eq i64 %optval15, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err16, i1 true)
+  br i1 %28, label %after_check17, label %else_block18
+
+after_check17:                                    ; preds = %phi_block
+  %29 = load i8, ptr %has_title, align 1
+  %30 = trunc i8 %29 to i1
+  br label %phi_block19
+
+else_block18:                                     ; preds = %phi_block
+  br label %phi_block19
+
+phi_block19:                                      ; preds = %else_block18, %after_check17
+  %val20 = phi i1 [ %30, %after_check17 ], [ false, %else_block18 ]
+  %ternary = select i1 %val20, ptr @.str.26, ptr @.str.27
+  %31 = call i32 (ptr, ...) @printf(ptr @.str.25, ptr %val14, ptr %ternary)
+  %32 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %32, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
diff --git a/test/test_suite7/errors/error_semantic_fails.c3 b/test/test_suite7/errors/error_semantic_fails.c3
new file mode 100644
index 000000000..bfafa510f
--- /dev/null
+++ b/test/test_suite7/errors/error_semantic_fails.c3
@@ -0,0 +1,5 @@
+fault Repeater
+{
+    A,
+    A // #error: This fault value was declared twice.
+}
diff --git a/test/test_suite7/errors/error_throw.c3 b/test/test_suite7/errors/error_throw.c3
new file mode 100644
index 000000000..e540cb29f
--- /dev/null
+++ b/test/test_suite7/errors/error_throw.c3
@@ -0,0 +1,12 @@
+module foo;
+
+fault Blurg
+{
+    Z
+}
+
+fn void main()
+{
+    int! i = Blurg.Z?;
+    int! j = Blurg.Z?;
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/error_union.c3 b/test/test_suite7/errors/error_union.c3
new file mode 100644
index 000000000..9996b2c2a
--- /dev/null
+++ b/test/test_suite7/errors/error_union.c3
@@ -0,0 +1,11 @@
+module foo;
+
+fault Blurg
+{
+    X, Y, Z
+}
+
+fn void main()
+{
+    anyfault foo;
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/failable_catch.c3t b/test/test_suite7/errors/failable_catch.c3t
new file mode 100644
index 000000000..b8b827ad3
--- /dev/null
+++ b/test/test_suite7/errors/failable_catch.c3t
@@ -0,0 +1,185 @@
+// #target: macos-x64
+
+fault MyErr
+{
+    TEST
+}
+
+macro foo(int x)
+{
+    if (x) return x;
+    return MyErr.TEST?;
+}
+
+extern fn void printf(char*, ...);
+
+fn int main()
+{
+    int! a = foo(1);
+
+    int! b = foo((a + 3) ?? 2);
+    int! c = foo(0);
+    (void)printf("a = %d\n", a);
+    (void)printf("b = %d\n", b);
+    (void)printf("c = %d\n", c);
+    if (@catch(c)) printf("c had error\n");
+    c = 3;
+    (void)printf("c = %d\n", c);
+    return 0;
+}
+
+/* #expect: failable_catch.ll
+
+define i32 @main() #0 {
+entry:
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %blockret = alloca i32, align 4
+  %b = alloca i32, align 4
+  %b.f = alloca i64, align 8
+  %blockret1 = alloca i32, align 4
+  %c = alloca i32, align 4
+  %c.f = alloca i64, align 8
+  %blockret19 = alloca i64, align 8
+  %f = alloca i64, align 8
+  br label %if.then
+
+if.then:                                          ; preds = %entry
+  store i32 1, ptr %blockret, align 4
+  br label %expr_block.exit
+
+expr_block.exit:                                  ; preds = %if.then
+  %0 = load i32, ptr %blockret, align 4
+  store i32 %0, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %expr_block.exit
+  %optval = load i64, ptr %a.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %else_block
+
+after_check:                                      ; preds = %after_assign
+  %2 = load i32, ptr %a, align 4
+  %add = add i32 %2, 3
+  br label %phi_block
+
+else_block:                                       ; preds = %after_assign
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %after_check
+  %val = phi i32 [ %add, %after_check ], [ 2, %else_block ]
+  %i2b = icmp ne i32 %val, 0
+  br i1 %i2b, label %if.then2, label %if.exit
+
+if.then2:                                         ; preds = %phi_block
+  store i32 %val, ptr %blockret1, align 4
+  br label %expr_block.exit3
+
+if.exit:                                          ; preds = %phi_block
+  store i64 ptrtoint (ptr @"failable_catch.MyErr$TEST" to i64), ptr %b.f, align 8
+  br label %after_assign4
+
+expr_block.exit3:                                 ; preds = %if.then2
+  %3 = load i32, ptr %blockret1, align 4
+  store i32 %3, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  br label %after_assign4
+
+after_assign4:                                    ; preds = %expr_block.exit3, %if.exit
+  br label %if.exit6
+
+if.exit6:                                         ; preds = %after_assign4
+  store i64 ptrtoint (ptr @"failable_catch.MyErr$TEST" to i64), ptr %c.f, align 8
+  br label %after_assign7
+
+after_assign7:                                    ; preds = %if.exit6
+  %optval8 = load i64, ptr %a.f, align 8
+  %not_err9 = icmp eq i64 %optval8, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %4, label %after_check10, label %voiderr
+
+after_check10:                                    ; preds = %after_assign7
+  %5 = load i32, ptr %a, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %5)
+  br label %voiderr
+
+voiderr:                                          ; preds = %after_check10, %after_assign7
+  %optval11 = load i64, ptr %b.f, align 8
+  %not_err12 = icmp eq i64 %optval11, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err12, i1 true)
+  br i1 %6, label %after_check13, label %voiderr14
+
+after_check13:                                    ; preds = %voiderr
+  %7 = load i32, ptr %b, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %7)
+  br label %voiderr14
+
+voiderr14:                                        ; preds = %after_check13, %voiderr
+  %optval15 = load i64, ptr %c.f, align 8
+  %not_err16 = icmp eq i64 %optval15, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err16, i1 true)
+  br i1 %8, label %after_check17, label %voiderr18
+
+after_check17:                                    ; preds = %voiderr14
+  %9 = load i32, ptr %c, align 4
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %9)
+  br label %voiderr18
+
+voiderr18:                                        ; preds = %after_check17, %voiderr14
+  br label %testblock
+
+testblock:                                        ; preds = %voiderr18
+  %optval20 = load i64, ptr %c.f, align 8
+  %not_err21 = icmp eq i64 %optval20, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err21, i1 true)
+  br i1 %10, label %after_check22, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %optval20, ptr %f, align 8
+  br label %end_block
+
+after_check22:                                    ; preds = %testblock
+  store i64 0, ptr %f, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check22, %assign_optional
+  %11 = load i64, ptr %f, align 8
+  %i2b23 = icmp ne i64 %11, 0
+  br i1 %i2b23, label %if.then24, label %if.exit25
+
+if.then24:                                        ; preds = %end_block
+  %12 = load i64, ptr %f, align 8
+  store i64 %12, ptr %blockret19, align 8
+  br label %expr_block.exit26
+
+if.exit25:                                        ; preds = %end_block
+  store i64 0, ptr %blockret19, align 8
+  br label %expr_block.exit26
+
+expr_block.exit26:                                ; preds = %if.exit25, %if.then24
+  %13 = load i64, ptr %blockret19, align 8
+  %i2b27 = icmp ne i64 %13, 0
+  br i1 %i2b27, label %if.then28, label %if.exit29
+
+if.then28:                                        ; preds = %expr_block.exit26
+  call void (ptr, ...) @printf(ptr @.str.3)
+  br label %if.exit29
+
+if.exit29:                                        ; preds = %if.then28, %expr_block.exit26
+  store i32 3, ptr %c, align 4
+  store i64 0, ptr %c.f, align 8
+  %optval30 = load i64, ptr %c.f, align 8
+  %not_err31 = icmp eq i64 %optval30, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %14, label %after_check32, label %voiderr33
+
+after_check32:                                    ; preds = %if.exit29
+  %15 = load i32, ptr %c, align 4
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %15)
+  br label %voiderr33
+
+voiderr33:                                        ; preds = %after_check32, %if.exit29
+  ret i32 0
+}
diff --git a/test/test_suite7/errors/fault_conv.c3t b/test/test_suite7/errors/fault_conv.c3t
new file mode 100644
index 000000000..e900b0aec
--- /dev/null
+++ b/test/test_suite7/errors/fault_conv.c3t
@@ -0,0 +1,123 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fault HadError
+{
+    BAD_STUFF,
+    WORSE_STUFF,
+    THE_WORST_STUFF
+}
+
+fn int exitcode(anyfault error)
+{
+    switch ((HadError)error)
+    {
+        case BAD_STUFF: return 64;
+        case WORSE_STUFF: return 65;
+        case THE_WORST_STUFF: return 66;
+        default: return 70;
+    }
+}
+
+fn void! canFail()
+{
+    if (34 + 35 == 69)
+    {
+        return HadError.BAD_STUFF?;
+    }
+}
+
+fn int main(String[] args)
+{
+    if (catch err = canFail())
+    {
+        return exitcode(err);
+    }
+
+	return 0;
+}
+
+/* #expect: test.ll
+
+
+define i32 @test.exitcode(i64 %0) #0 {
+entry:
+  %switch = alloca i64, align 8
+  store i64 %0, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i64, ptr %switch, align 8
+  %eq = icmp eq i64 ptrtoint (ptr @"test.HadError$BAD_STUFF" to i64), %1
+  br i1 %eq, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %switch.entry
+  ret i32 64
+
+next_if:                                          ; preds = %switch.entry
+  %eq1 = icmp eq i64 ptrtoint (ptr @"test.HadError$WORSE_STUFF" to i64), %1
+  br i1 %eq1, label %switch.case2, label %next_if3
+
+switch.case2:                                     ; preds = %next_if
+  ret i32 65
+
+next_if3:                                         ; preds = %next_if
+  %eq4 = icmp eq i64 ptrtoint (ptr @"test.HadError$THE_WORST_STUFF" to i64), %1
+  br i1 %eq4, label %switch.case5, label %next_if6
+
+switch.case5:                                     ; preds = %next_if3
+  ret i32 66
+
+next_if6:                                         ; preds = %next_if3
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if6
+  ret i32 70
+}
+
+define i64 @test.canFail() #0 {
+entry:
+  br label %if.then
+
+if.then:                                          ; preds = %entry
+  ret i64 ptrtoint (ptr @"test.HadError$BAD_STUFF" to i64)
+}
+
+define i32 @test.main(ptr %0, i64 %1) #0 {
+entry:
+  %args = alloca %"char[][]", align 8
+  %err = alloca i64, align 8
+  store ptr %0, ptr %args, align 8
+  %ptradd = getelementptr inbounds i8, ptr %args, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  br label %testblock
+
+testblock:                                        ; preds = %entry
+  %2 = call i64 @test.canFail()
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %2, ptr %err, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check, %assign_optional
+  %4 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %4, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %5 = load i64, ptr %err, align 8
+  %6 = call i32 @test.exitcode(i64 %5)
+  ret i32 %6
+
+if.exit:                                          ; preds = %end_block
+  ret i32 0
+}
+
diff --git a/test/test_suite7/errors/general_error_regression.c3t b/test/test_suite7/errors/general_error_regression.c3t
new file mode 100644
index 000000000..521baacaf
--- /dev/null
+++ b/test/test_suite7/errors/general_error_regression.c3t
@@ -0,0 +1,324 @@
+// #target: macos-x64
+module foo;
+import std::io;
+import libc;
+fault Foo
+{
+    X,
+    Y,
+    Z,
+    W,
+    W1
+
+
+}
+
+fault Foob
+{
+    X1,
+    Y2
+}
+
+distinct Bar = int;
+
+enum MyEnum
+{
+    A,
+    B
+}
+
+fn void Foo.hello(Foo *f)
+{
+    io::printn("Hello from Foo");
+}
+
+fn void Bar.hello(Bar *b)
+{
+    io::printn("Hello from Bar");
+}
+
+fn void MyEnum.hello(MyEnum *myenum)
+{
+    io::printn("Hello from MyEnum");
+}
+fn void main()
+{
+    Foo f = Foo.X;
+    Foo ef = Foo.Y;
+    anyfault x = f;
+    ulong z = (ulong)(x);
+    libc::printf("1: %p\n", z);
+    x = ef;
+    z = (ulong)(x);
+    libc::printf("2: %p\n", z);
+    x = Foo.W;
+    z = (ulong)(x);
+    libc::printf("21: %p\n", z);
+    x = Foo.W1;
+    z = (ulong)(x);
+    libc::printf("22: %p\n", z);
+    x = Foob.X1;
+    z = (ulong)(x);
+    libc::printf("3: %p\n", z);
+    x = Foob.Y2;
+    z = (ulong)(x);
+    libc::printf("4: %p\n", z);
+    Bar b;
+    MyEnum a = MyEnum.A;
+    f.hello();
+    b.hello();
+    a.hello();
+}
+
+/* #expect: foo.ll
+
+define void @foo.Foo.hello(ptr %0) #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str.12, i64 14)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  ret void
+}
+
+
+define void @foo.Bar.hello(ptr %0) #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str.13, i64 14)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  ret void
+}
+
+
+define void @foo.MyEnum.hello(ptr %0) #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str.14, i64 17)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  ret void
+}
+
+
+define void @foo.main() #0 {
+entry:
+  %f = alloca i64, align 8
+  %ef = alloca i64, align 8
+  %x = alloca i64, align 8
+  %z = alloca i64, align 8
+  %b = alloca i32, align 4
+  %a = alloca i32, align 4
+  store i64 ptrtoint (ptr @"foo.Foo$X" to i64), ptr %f, align 8
+  store i64 ptrtoint (ptr @"foo.Foo$Y" to i64), ptr %ef, align 8
+  %0 = load i64, ptr %f, align 8
+  store i64 %0, ptr %x, align 8
+  %1 = load i64, ptr %x, align 8
+  store i64 %1, ptr %z, align 8
+  %2 = load i64, ptr %z, align 8
+  %3 = call i32 (ptr, ...) @printf(ptr @.str, i64 %2)
+  %4 = load i64, ptr %ef, align 8
+  store i64 %4, ptr %x, align 8
+  %5 = load i64, ptr %x, align 8
+  store i64 %5, ptr %z, align 8
+  %6 = load i64, ptr %z, align 8
+  %7 = call i32 (ptr, ...) @printf(ptr @.str.7, i64 %6)
+  store i64 ptrtoint (ptr @"foo.Foo$W" to i64), ptr %x, align 8
+  %8 = load i64, ptr %x, align 8
+  store i64 %8, ptr %z, align 8
+  %9 = load i64, ptr %z, align 8
+  %10 = call i32 (ptr, ...) @printf(ptr @.str.8, i64 %9)
+  store i64 ptrtoint (ptr @"foo.Foo$W1" to i64), ptr %x, align 8
+  %11 = load i64, ptr %x, align 8
+  store i64 %11, ptr %z, align 8
+  %12 = load i64, ptr %z, align 8
+  %13 = call i32 (ptr, ...) @printf(ptr @.str.9, i64 %12)
+  store i64 ptrtoint (ptr @"foo.Foob$X1" to i64), ptr %x, align 8
+  %14 = load i64, ptr %x, align 8
+  store i64 %14, ptr %z, align 8
+  %15 = load i64, ptr %z, align 8
+  %16 = call i32 (ptr, ...) @printf(ptr @.str.10, i64 %15)
+  store i64 ptrtoint (ptr @"foo.Foob$Y2" to i64), ptr %x, align 8
+  %17 = load i64, ptr %x, align 8
+  store i64 %17, ptr %z, align 8
+  %18 = load i64, ptr %z, align 8
+  %19 = call i32 (ptr, ...) @printf(ptr @.str.11, i64 %18)
+  store i32 0, ptr %b, align 4
+  store i32 0, ptr %a, align 4
+  call void @foo.Foo.hello(ptr %f)
+  call void @foo.Bar.hello(ptr %b)
+  call void @foo.MyEnum.hello(ptr %a)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/illegal_use_of_optional.c3 b/test/test_suite7/errors/illegal_use_of_optional.c3
new file mode 100644
index 000000000..6d33a20ee
--- /dev/null
+++ b/test/test_suite7/errors/illegal_use_of_optional.c3
@@ -0,0 +1,14 @@
+fn void syntaxErrors()
+{
+    int! i = 0;
+    while (i + 1) {} // #error: optional, but was 'int!'
+    if (i + 1) {} // #error: optional, but was 'int!'
+    for (int x = i;;) {} // #error: 'int!' to 'int'
+    for (int x = 0; x < i + 1;) {} // #error: optional, but was 'bool!'.
+    for (int x = 0; x < 10; x += i + 1) {} // #error: Cannot assign an optional value to a non-optional
+    switch (i + 1) // #error: optional, but was 'int!'
+    {
+        default:
+            i + 1;
+    }
+}
diff --git a/test/test_suite7/errors/invalid_cast_ct.c3 b/test/test_suite7/errors/invalid_cast_ct.c3
new file mode 100644
index 000000000..55c14ebb2
--- /dev/null
+++ b/test/test_suite7/errors/invalid_cast_ct.c3
@@ -0,0 +1,16 @@
+module exitcodes;
+import std::io;
+
+fault HadError
+{
+    BAD_STUFF,
+    WORSE_STUFF,
+    THE_WORST_STUFF
+}
+
+fn int main(String[] args)
+{
+	HadError err = HadError.BAD_STUFF;
+	SearchResult res = (SearchResult)(anyfault)HadError.BAD_STUFF; // #error: This expression is known at compile time
+	return 0;
+}
diff --git a/test/test_suite7/errors/lone_try.c3 b/test/test_suite7/errors/lone_try.c3
new file mode 100644
index 000000000..e1cd036f3
--- /dev/null
+++ b/test/test_suite7/errors/lone_try.c3
@@ -0,0 +1,11 @@
+module test;
+
+fn void main()
+{
+	try a; // #error: try?
+}
+
+fn void hello()
+{
+	catch a; // #error: catch?
+}
diff --git a/test/test_suite7/errors/macro_err.c3t b/test/test_suite7/errors/macro_err.c3t
new file mode 100644
index 000000000..23e6ff617
--- /dev/null
+++ b/test/test_suite7/errors/macro_err.c3t
@@ -0,0 +1,58 @@
+// #target: macos-x64
+module test;
+import libc;
+fn int! abc()
+{
+	return 1;
+}
+macro test()
+{
+	return abc()!;
+}
+
+fn void main()
+{
+	libc::printf("%d\n", test() ?? 2);
+}
+
+/* #expect: test.ll
+
+define i64 @test.abc(ptr %0) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  store i32 1, ptr %0, align 4
+  ret i64 0
+}
+
+
+define void @test.main() #0 {
+entry:
+  %error_var = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %0 = call i64 @test.abc(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %0, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %else_block
+
+noerr_block:                                      ; preds = %after_check
+  %2 = load i32, ptr %retparam, align 4
+  br label %phi_block
+
+else_block:                                       ; preds = %guard_block
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %noerr_block
+  %val = phi i32 [ %2, %noerr_block ], [ 2, %else_block ]
+  %3 = call i32 (ptr, ...) @printf(ptr @.str, i32 %val)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/macro_err2.c3t b/test/test_suite7/errors/macro_err2.c3t
new file mode 100644
index 000000000..da045fa3f
--- /dev/null
+++ b/test/test_suite7/errors/macro_err2.c3t
@@ -0,0 +1,60 @@
+// #target: macos-x64
+module test;
+import libc;
+fault Tester { FOO }
+
+fn int! abc()
+{
+	return Tester.FOO?;
+}
+macro test()
+{
+	defer libc::printf("Test2\n");
+	return abc();
+}
+
+fn void main()
+{
+	defer libc::printf("Test1\n");
+	libc::printf("%d\n", test() ?? 2);
+}
+
+/* #expect: test.ll
+
+define i64 @test.abc(ptr %0) #0 {
+entry:
+  ret i64 ptrtoint (ptr @"test.Tester$FOO" to i64)
+}
+
+define void @test.main() #0 {
+entry:
+  %blockret = alloca i32, align 4
+  %retparam = alloca i32, align 4
+  %0 = call i64 @test.abc(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %opt_block_cleanup
+
+after_check:                                      ; preds = %entry
+  %2 = load i32, ptr %retparam, align 4
+  store i32 %2, ptr %blockret, align 4
+  %3 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  br label %expr_block.exit
+
+opt_block_cleanup:                                ; preds = %entry
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.2)
+  br label %else_block
+
+expr_block.exit:                                  ; preds = %after_check
+  %5 = load i32, ptr %blockret, align 4
+  br label %phi_block
+
+else_block:                                       ; preds = %opt_block_cleanup
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %expr_block.exit
+  %val = phi i32 [ %5, %expr_block.exit ], [ 2, %else_block ]
+  %6 = call i32 (ptr, ...) @printf(ptr @.str, i32 %val)
+  %7 = call i32 (ptr, ...) @printf(ptr @.str.3)
+  ret void
+}
diff --git a/test/test_suite7/errors/macro_err3.c3t b/test/test_suite7/errors/macro_err3.c3t
new file mode 100644
index 000000000..3cff92b0e
--- /dev/null
+++ b/test/test_suite7/errors/macro_err3.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module test;
+import libc;
+fault Tester { FOO }
+
+
+macro test()
+{
+	defer libc::printf("Test2\n");
+	return Tester.FOO?;
+}
+
+fn void main()
+{
+	defer libc::printf("Test1\n");
+	libc::printf("%d\n", test() ?? 2);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %blockret = alloca i32, align 4
+  br label %opt_block_cleanup
+
+opt_block_cleanup:                                ; preds = %entry
+  %0 = call i32 (ptr, ...) @printf(ptr @.str.2)
+  br label %else_block
+
+else_block:                                       ; preds = %opt_block_cleanup
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block
+  %1 = call i32 (ptr, ...) @printf(ptr @.str, i32 2)
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.3)
+  ret void
+}
diff --git a/test/test_suite7/errors/macro_recurse_twice.c3 b/test/test_suite7/errors/macro_recurse_twice.c3
new file mode 100644
index 000000000..88a768c9d
--- /dev/null
+++ b/test/test_suite7/errors/macro_recurse_twice.c3
@@ -0,0 +1,13 @@
+module oups;
+import std::io;
+
+fn void main()
+{
+    recm(1);
+}
+
+macro recm(x)
+{
+    recm(x + 1); // #error: Failure
+    recm(x + 1);
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/missing_bang.c3 b/test/test_suite7/errors/missing_bang.c3
new file mode 100644
index 000000000..93d41fa64
--- /dev/null
+++ b/test/test_suite7/errors/missing_bang.c3
@@ -0,0 +1,7 @@
+
+fault Bob { FOO }
+
+fn int! test()
+{
+	return Bob.FOO; // #error: You need to add a trailing
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/mixed_decl.c3 b/test/test_suite7/errors/mixed_decl.c3
new file mode 100644
index 000000000..4231638a9
--- /dev/null
+++ b/test/test_suite7/errors/mixed_decl.c3
@@ -0,0 +1,10 @@
+import std::io;
+
+fn void main()
+{
+	int a, $b;
+	int $c, $d;
+	a++;
+	$b++;
+	$d++;
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/more_optional_discard.c3 b/test/test_suite7/errors/more_optional_discard.c3
new file mode 100644
index 000000000..c2472cb1d
--- /dev/null
+++ b/test/test_suite7/errors/more_optional_discard.c3
@@ -0,0 +1,15 @@
+module abc;
+
+macro int mtest1(int a) @nodiscard { return 0; }
+macro int! mtest2(int a) { return 0; }
+fn int ftest1(int a) @nodiscard { return 0; }
+fn int! ftest2(int a) { return 0; }
+
+
+fn void main()
+{
+	mtest1(3); // #error: The called macro is marked `@nodiscard`
+	mtest2(3); // #error: The macro returns 'int!', which is an optional
+	ftest1(3); // #error: The called function is marked `@nodiscard`
+	ftest2(3); // #error: The function returns 'int!'
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/more_optional_tests.c3 b/test/test_suite7/errors/more_optional_tests.c3
new file mode 100644
index 000000000..226c57303
--- /dev/null
+++ b/test/test_suite7/errors/more_optional_tests.c3
@@ -0,0 +1,13 @@
+module foo;
+
+fault Foo { ABC }
+
+fn void test()
+{
+	int x = Foo.ABC? ?? 123;
+}
+
+fn void test2()
+{
+	int! y = Foo.ABC? ?? Foo.ABC?;
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/multiple_catch.c3t b/test/test_suite7/errors/multiple_catch.c3t
new file mode 100644
index 000000000..2be69c69d
--- /dev/null
+++ b/test/test_suite7/errors/multiple_catch.c3t
@@ -0,0 +1,287 @@
+// #target: macos-x64
+
+module demo1;
+import std::io;
+
+fault CheckError
+{
+	ABC,
+	DEF
+}
+
+fn int! hello(int a)
+{
+	io::printn("hello");
+	return a < 0 ? CheckError.ABC? : a;
+}
+
+fn void! bye()
+{
+	io::printn("bye");
+	return CheckError.DEF?;
+}
+fn void main()
+{
+	if (catch err = hello(-1), bye())
+	{
+		io::printfn("1 Got %s", err);
+	}
+	if (catch err = hello(0), bye())
+	{
+		io::printfn("2 Got %s", err);
+	}
+	if (catch hello(0), bye())
+    {
+    	io::printn("3 Ok");
+    }
+	if (catch anyfault err = hello(0), bye())
+    {
+		io::printfn("4 Got %s", err);
+    }
+}
+
+/* #expect: demo1.ll
+
+define void @demo1.main() #0 {
+entry:
+  %err = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %retparam5 = alloca i64, align 8
+  %err8 = alloca i64, align 8
+  %retparam10 = alloca i32, align 4
+  %varargslots21 = alloca [1 x %any], align 16
+  %retparam22 = alloca i64, align 8
+  %temp_err = alloca i64, align 8
+  %retparam27 = alloca i32, align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam39 = alloca i64, align 8
+  %error_var43 = alloca i64, align 8
+  %error_var49 = alloca i64, align 8
+  %err56 = alloca i64, align 8
+  %retparam58 = alloca i32, align 4
+  %varargslots69 = alloca [1 x %any], align 16
+  %retparam70 = alloca i64, align 8
+  br label %testblock
+
+testblock:                                        ; preds = %entry
+  %0 = call i64 @demo1.hello(ptr %retparam, i32 -1)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %0, ptr %err, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %testblock
+  br label %testblock1
+
+testblock1:                                       ; preds = %after_check
+  %2 = call i64 @demo1.bye()
+  %not_err2 = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %3, label %after_check4, label %assign_optional3
+
+assign_optional3:                                 ; preds = %testblock1
+  store i64 %2, ptr %err, align 8
+  br label %end_block
+
+after_check4:                                     ; preds = %testblock1
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check4, %assign_optional3, %assign_optional
+  %4 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %4, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %5 = insertvalue %any undef, ptr %err, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %6, ptr %varargslots, align 16
+  %7 = call i64 @std.io.printfn(ptr %retparam5, ptr @.str.3, i64 8, ptr %varargslots, i64 1)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %end_block
+  br label %testblock9
+
+testblock9:                                       ; preds = %if.exit
+  %8 = call i64 @demo1.hello(ptr %retparam10, i32 0)
+  %not_err11 = icmp eq i64 %8, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %9, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %testblock9
+  store i64 %8, ptr %err8, align 8
+  br label %end_block18
+
+after_check13:                                    ; preds = %testblock9
+  br label %testblock14
+
+testblock14:                                      ; preds = %after_check13
+  %10 = call i64 @demo1.bye()
+  %not_err15 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err15, i1 true)
+  br i1 %11, label %after_check17, label %assign_optional16
+
+assign_optional16:                                ; preds = %testblock14
+  store i64 %10, ptr %err8, align 8
+  br label %end_block18
+
+after_check17:                                    ; preds = %testblock14
+  store i64 0, ptr %err8, align 8
+  br label %end_block18
+
+end_block18:                                      ; preds = %after_check17, %assign_optional16, %assign_optional12
+  %12 = load i64, ptr %err8, align 8
+  %i2b19 = icmp ne i64 %12, 0
+  br i1 %i2b19, label %if.then20, label %if.exit25
+
+if.then20:                                        ; preds = %end_block18
+  %13 = insertvalue %any undef, ptr %err8, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %14, ptr %varargslots21, align 16
+  %15 = call i64 @std.io.printfn(ptr %retparam22, ptr @.str.4, i64 8, ptr %varargslots21, i64 1)
+  br label %if.exit25
+
+if.exit25:                                        ; preds = %if.then20, %end_block18
+  br label %testblock26
+
+testblock26:                                      ; preds = %if.exit25
+  %16 = call i64 @demo1.hello(ptr %retparam27, i32 0)
+  %not_err28 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err28, i1 true)
+  br i1 %17, label %after_check30, label %assign_optional29
+
+assign_optional29:                                ; preds = %testblock26
+  store i64 %16, ptr %temp_err, align 8
+  br label %end_block35
+
+after_check30:                                    ; preds = %testblock26
+  br label %testblock31
+
+testblock31:                                      ; preds = %after_check30
+  %18 = call i64 @demo1.bye()
+  %not_err32 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err32, i1 true)
+  br i1 %19, label %after_check34, label %assign_optional33
+
+assign_optional33:                                ; preds = %testblock31
+  store i64 %18, ptr %temp_err, align 8
+  br label %end_block35
+
+after_check34:                                    ; preds = %testblock31
+  store i64 0, ptr %temp_err, align 8
+  br label %end_block35
+
+end_block35:                                      ; preds = %after_check34, %assign_optional33, %assign_optional29
+  %20 = load i64, ptr %temp_err, align 8
+  %i2b36 = icmp ne i64 %20, 0
+  br i1 %i2b36, label %if.then37, label %if.exit55
+
+if.then37:                                        ; preds = %end_block35
+  %21 = call ptr @std.io.stdout()
+  %22 = call i64 @std.io.File.write(ptr %retparam39, ptr %21, ptr @.str.5, i64 4)
+  %not_err40 = icmp eq i64 %22, 0
+  %23 = call i1 @llvm.expect.i1(i1 %not_err40, i1 true)
+  br i1 %23, label %after_check42, label %assign_optional41
+
+assign_optional41:                                ; preds = %if.then37
+  store i64 %22, ptr %error_var, align 8
+  br label %guard_block
+
+after_check42:                                    ; preds = %if.then37
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional41
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check42
+  %24 = load i64, ptr %retparam39, align 8
+  store i64 %24, ptr %len, align 8
+  %25 = call i64 @std.io.File.write_byte(ptr %21, i8 zeroext 10)
+  %not_err44 = icmp eq i64 %25, 0
+  %26 = call i1 @llvm.expect.i1(i1 %not_err44, i1 true)
+  br i1 %26, label %after_check46, label %assign_optional45
+
+assign_optional45:                                ; preds = %noerr_block
+  store i64 %25, ptr %error_var43, align 8
+  br label %guard_block47
+
+after_check46:                                    ; preds = %noerr_block
+  br label %noerr_block48
+
+guard_block47:                                    ; preds = %assign_optional45
+  br label %voiderr
+
+noerr_block48:                                    ; preds = %after_check46
+  %27 = call i64 @std.io.File.flush(ptr %21)
+  %not_err50 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err50, i1 true)
+  br i1 %28, label %after_check52, label %assign_optional51
+
+assign_optional51:                                ; preds = %noerr_block48
+  store i64 %27, ptr %error_var49, align 8
+  br label %guard_block53
+
+after_check52:                                    ; preds = %noerr_block48
+  br label %noerr_block54
+
+guard_block53:                                    ; preds = %assign_optional51
+  br label %voiderr
+
+noerr_block54:                                    ; preds = %after_check52
+  %29 = load i64, ptr %len, align 8
+  %add = add i64 %29, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block54, %guard_block53, %guard_block47, %guard_block
+  br label %if.exit55
+
+if.exit55:                                        ; preds = %voiderr, %end_block35
+  br label %testblock57
+
+testblock57:                                      ; preds = %if.exit55
+  %30 = call i64 @demo1.hello(ptr %retparam58, i32 0)
+  %not_err59 = icmp eq i64 %30, 0
+  %31 = call i1 @llvm.expect.i1(i1 %not_err59, i1 true)
+  br i1 %31, label %after_check61, label %assign_optional60
+
+assign_optional60:                                ; preds = %testblock57
+  store i64 %30, ptr %err56, align 8
+  br label %end_block66
+
+after_check61:                                    ; preds = %testblock57
+  br label %testblock62
+
+testblock62:                                      ; preds = %after_check61
+  %32 = call i64 @demo1.bye()
+  %not_err63 = icmp eq i64 %32, 0
+  %33 = call i1 @llvm.expect.i1(i1 %not_err63, i1 true)
+  br i1 %33, label %after_check65, label %assign_optional64
+
+assign_optional64:                                ; preds = %testblock62
+  store i64 %32, ptr %err56, align 8
+  br label %end_block66
+
+after_check65:                                    ; preds = %testblock62
+  store i64 0, ptr %err56, align 8
+  br label %end_block66
+
+end_block66:                                      ; preds = %after_check65, %assign_optional64, %assign_optional60
+  %34 = load i64, ptr %err56, align 8
+  %i2b67 = icmp ne i64 %34, 0
+  br i1 %i2b67, label %if.then68, label %if.exit73
+
+if.then68:                                        ; preds = %end_block66
+  %35 = insertvalue %any undef, ptr %err56, 0
+  %36 = insertvalue %any %35, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %36, ptr %varargslots69, align 16
+  %37 = call i64 @std.io.printfn(ptr %retparam70, ptr @.str.6, i64 8, ptr %varargslots69, i64 1)
+  br label %if.exit73
+
+if.exit73:                                        ; preds = %if.then68, %end_block66
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/no_common.c3 b/test/test_suite7/errors/no_common.c3
new file mode 100644
index 000000000..2c26ee9f2
--- /dev/null
+++ b/test/test_suite7/errors/no_common.c3
@@ -0,0 +1,13 @@
+fn int! abc()
+{
+	return 1;
+}
+macro test()
+{
+	return @catch(abc())?;
+}
+
+fn void main()
+{
+	test() ?? 2; // No longer an error!
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/optional_chained_init.c3t b/test/test_suite7/errors/optional_chained_init.c3t
new file mode 100644
index 000000000..beec02d17
--- /dev/null
+++ b/test/test_suite7/errors/optional_chained_init.c3t
@@ -0,0 +1,440 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fault Test { FOO }
+
+fn void test1()
+{
+	int! a = 1;
+	int! b = a = Test.FOO?;
+	if (catch err = a) io::printfn("A err was: %s", err);
+	if (catch err = b) io::printfn("B err was: %s", err);
+	(void)io::printfn("A was: %s", a);
+	(void)io::printfn("B was: %s", b);
+}
+
+fn void test2()
+{
+	int! x = Test.FOO?;
+	int! a = 1;
+	int! b = a = x;
+	if (catch err = a) io::printfn("A err was: %s", err);
+	if (catch err = b) io::printfn("B err was: %s", err);
+	(void)io::printfn("A was: %s", a);
+	(void)io::printfn("B was: %s", b);
+}
+
+
+fn void test3()
+{
+	int! x = 23;
+	int! a = 1;
+	int! b = a = x;
+	if (catch err = a) io::printfn("A err was: %s", err);
+	if (catch err = b) io::printfn("B err was: %s", err);
+	(void)io::printfn("A was: %s", a);
+	(void)io::printfn("B was: %s", b);
+}
+
+fn void main()
+{
+	test1();
+	test2();
+	test3();
+}
+
+/* #expect: test.ll
+
+define void @test.test1() #0 {
+entry:
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %b = alloca i32, align 4
+  %b.f = alloca i64, align 8
+  %err = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %err3 = alloca i64, align 8
+  %varargslots12 = alloca [1 x %any], align 16
+  %retparam13 = alloca i64, align 8
+  %varargslots17 = alloca [1 x %any], align 16
+  %retparam21 = alloca i64, align 8
+  %varargslots24 = alloca [1 x %any], align 16
+  %retparam28 = alloca i64, align 8
+  store i32 1, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  store i64 ptrtoint (ptr @"test.Test$FOO" to i64), ptr %a.f, align 8
+  store i64 ptrtoint (ptr @"test.Test$FOO" to i64), ptr %b.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %entry
+  br label %testblock
+
+testblock:                                        ; preds = %after_assign
+  %optval = load i64, ptr %a.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %optval, ptr %err, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check, %assign_optional
+  %1 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %1, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %2 = insertvalue %any undef, ptr %err, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %3, ptr %varargslots, align 16
+  %4 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 13, ptr %varargslots, i64 1)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %end_block
+  br label %testblock4
+
+testblock4:                                       ; preds = %if.exit
+  %optval5 = load i64, ptr %b.f, align 8
+  %not_err6 = icmp eq i64 %optval5, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err6, i1 true)
+  br i1 %5, label %after_check8, label %assign_optional7
+
+assign_optional7:                                 ; preds = %testblock4
+  store i64 %optval5, ptr %err3, align 8
+  br label %end_block9
+
+after_check8:                                     ; preds = %testblock4
+  store i64 0, ptr %err3, align 8
+  br label %end_block9
+
+end_block9:                                       ; preds = %after_check8, %assign_optional7
+  %6 = load i64, ptr %err3, align 8
+  %i2b10 = icmp ne i64 %6, 0
+  br i1 %i2b10, label %if.then11, label %if.exit16
+
+if.then11:                                        ; preds = %end_block9
+  %7 = insertvalue %any undef, ptr %err3, 0
+  %8 = insertvalue %any %7, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %8, ptr %varargslots12, align 16
+  %9 = call i64 @std.io.printfn(ptr %retparam13, ptr @.str.1, i64 13, ptr %varargslots12, i64 1)
+  br label %if.exit16
+
+if.exit16:                                        ; preds = %if.then11, %end_block9
+  %optval18 = load i64, ptr %a.f, align 8
+  %not_err19 = icmp eq i64 %optval18, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err19, i1 true)
+  br i1 %10, label %after_check20, label %after_check23
+
+after_check20:                                    ; preds = %if.exit16
+  %11 = insertvalue %any undef, ptr %a, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %12, ptr %varargslots17, align 16
+  %13 = call i64 @std.io.printfn(ptr %retparam21, ptr @.str.2, i64 9, ptr %varargslots17, i64 1)
+  %not_err22 = icmp eq i64 %13, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err22, i1 true)
+  br i1 %14, label %after_check23, label %after_check23
+
+after_check23:                                    ; preds = %if.exit16, %after_check20, %after_check20
+  %optval25 = load i64, ptr %b.f, align 8
+  %not_err26 = icmp eq i64 %optval25, 0
+  %15 = call i1 @llvm.expect.i1(i1 %not_err26, i1 true)
+  br i1 %15, label %after_check27, label %after_check30
+
+after_check27:                                    ; preds = %after_check23
+  %16 = insertvalue %any undef, ptr %b, 0
+  %17 = insertvalue %any %16, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %17, ptr %varargslots24, align 16
+  %18 = call i64 @std.io.printfn(ptr %retparam28, ptr @.str.3, i64 9, ptr %varargslots24, i64 1)
+  %not_err29 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err29, i1 true)
+  br i1 %19, label %after_check30, label %after_check30
+
+after_check30:                                    ; preds = %after_check23, %after_check27, %after_check27
+  ret void
+}
+
+; Function Attrs:
+define void @test.test2() #0 {
+entry:
+  %x = alloca i32, align 4
+  %x.f = alloca i64, align 8
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %b = alloca i32, align 4
+  %b.f = alloca i64, align 8
+  %err = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %err8 = alloca i64, align 8
+  %varargslots17 = alloca [1 x %any], align 16
+  %retparam18 = alloca i64, align 8
+  %varargslots22 = alloca [1 x %any], align 16
+  %retparam26 = alloca i64, align 8
+  %varargslots29 = alloca [1 x %any], align 16
+  %retparam33 = alloca i64, align 8
+  store i64 ptrtoint (ptr @"test.Test$FOO" to i64), ptr %x.f, align 8
+  store i32 1, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %a.f, align 8
+  br label %optional_assign_jump
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %x, align 4
+  store i32 %1, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  br label %after_assign
+
+optional_assign_jump:                             ; preds = %assign_optional
+  %reload_err = load i64, ptr %a.f, align 8
+  store i64 %reload_err, ptr %b.f, align 8
+  br label %after_assign1
+
+after_assign:                                     ; preds = %after_check
+  store i32 %1, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  br label %after_assign1
+
+after_assign1:                                    ; preds = %after_assign, %optional_assign_jump
+  br label %testblock
+
+testblock:                                        ; preds = %after_assign1
+  %optval2 = load i64, ptr %a.f, align 8
+  %not_err3 = icmp eq i64 %optval2, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %2, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %testblock
+  store i64 %optval2, ptr %err, align 8
+  br label %end_block
+
+after_check5:                                     ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check5, %assign_optional4
+  %3 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %3, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %4 = insertvalue %any undef, ptr %err, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %6 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.4, i64 13, ptr %varargslots, i64 1)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %end_block
+  br label %testblock9
+
+testblock9:                                       ; preds = %if.exit
+  %optval10 = load i64, ptr %b.f, align 8
+  %not_err11 = icmp eq i64 %optval10, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %7, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %testblock9
+  store i64 %optval10, ptr %err8, align 8
+  br label %end_block14
+
+after_check13:                                    ; preds = %testblock9
+  store i64 0, ptr %err8, align 8
+  br label %end_block14
+
+end_block14:                                      ; preds = %after_check13, %assign_optional12
+  %8 = load i64, ptr %err8, align 8
+  %i2b15 = icmp ne i64 %8, 0
+  br i1 %i2b15, label %if.then16, label %if.exit21
+
+if.then16:                                        ; preds = %end_block14
+  %9 = insertvalue %any undef, ptr %err8, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %10, ptr %varargslots17, align 16
+  %11 = call i64 @std.io.printfn(ptr %retparam18, ptr @.str.5, i64 13, ptr %varargslots17, i64 1)
+  br label %if.exit21
+
+if.exit21:                                        ; preds = %if.then16, %end_block14
+  %optval23 = load i64, ptr %a.f, align 8
+  %not_err24 = icmp eq i64 %optval23, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %12, label %after_check25, label %after_check28
+
+after_check25:                                    ; preds = %if.exit21
+  %13 = insertvalue %any undef, ptr %a, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %14, ptr %varargslots22, align 16
+  %15 = call i64 @std.io.printfn(ptr %retparam26, ptr @.str.6, i64 9, ptr %varargslots22, i64 1)
+  %not_err27 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err27, i1 true)
+  br i1 %16, label %after_check28, label %after_check28
+
+after_check28:                                    ; preds = %if.exit21, %after_check25, %after_check25
+  %optval30 = load i64, ptr %b.f, align 8
+  %not_err31 = icmp eq i64 %optval30, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %17, label %after_check32, label %after_check35
+
+after_check32:                                    ; preds = %after_check28
+  %18 = insertvalue %any undef, ptr %b, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %19, ptr %varargslots29, align 16
+  %20 = call i64 @std.io.printfn(ptr %retparam33, ptr @.str.7, i64 9, ptr %varargslots29, i64 1)
+  %not_err34 = icmp eq i64 %20, 0
+  %21 = call i1 @llvm.expect.i1(i1 %not_err34, i1 true)
+  br i1 %21, label %after_check35, label %after_check35
+
+after_check35:                                    ; preds = %after_check28, %after_check32, %after_check32
+  ret void
+}
+
+; Function Attrs:
+define void @test.test3() #0 {
+entry:
+  %x = alloca i32, align 4
+  %x.f = alloca i64, align 8
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %b = alloca i32, align 4
+  %b.f = alloca i64, align 8
+  %err = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %err8 = alloca i64, align 8
+  %varargslots17 = alloca [1 x %any], align 16
+  %retparam18 = alloca i64, align 8
+  %varargslots22 = alloca [1 x %any], align 16
+  %retparam26 = alloca i64, align 8
+  %varargslots29 = alloca [1 x %any], align 16
+  %retparam33 = alloca i64, align 8
+  store i32 23, ptr %x, align 4
+  store i64 0, ptr %x.f, align 8
+  store i32 1, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %a.f, align 8
+  br label %optional_assign_jump
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %x, align 4
+  store i32 %1, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  br label %after_assign
+
+optional_assign_jump:                             ; preds = %assign_optional
+  %reload_err = load i64, ptr %a.f, align 8
+  store i64 %reload_err, ptr %b.f, align 8
+  br label %after_assign1
+
+after_assign:                                     ; preds = %after_check
+  store i32 %1, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  br label %after_assign1
+
+after_assign1:                                    ; preds = %after_assign, %optional_assign_jump
+  br label %testblock
+
+testblock:                                        ; preds = %after_assign1
+  %optval2 = load i64, ptr %a.f, align 8
+  %not_err3 = icmp eq i64 %optval2, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %2, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %testblock
+  store i64 %optval2, ptr %err, align 8
+  br label %end_block
+
+after_check5:                                     ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check5, %assign_optional4
+  %3 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %3, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %4 = insertvalue %any undef, ptr %err, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %6 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.8, i64 13, ptr %varargslots, i64 1)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %end_block
+  br label %testblock9
+
+testblock9:                                       ; preds = %if.exit
+  %optval10 = load i64, ptr %b.f, align 8
+  %not_err11 = icmp eq i64 %optval10, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %7, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %testblock9
+  store i64 %optval10, ptr %err8, align 8
+  br label %end_block14
+
+after_check13:                                    ; preds = %testblock9
+  store i64 0, ptr %err8, align 8
+  br label %end_block14
+
+end_block14:                                      ; preds = %after_check13, %assign_optional12
+  %8 = load i64, ptr %err8, align 8
+  %i2b15 = icmp ne i64 %8, 0
+  br i1 %i2b15, label %if.then16, label %if.exit21
+
+if.then16:                                        ; preds = %end_block14
+  %9 = insertvalue %any undef, ptr %err8, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %10, ptr %varargslots17, align 16
+  %11 = call i64 @std.io.printfn(ptr %retparam18, ptr @.str.9, i64 13, ptr %varargslots17, i64 1)
+  br label %if.exit21
+
+if.exit21:                                        ; preds = %if.then16, %end_block14
+  %optval23 = load i64, ptr %a.f, align 8
+  %not_err24 = icmp eq i64 %optval23, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %12, label %after_check25, label %after_check28
+
+after_check25:                                    ; preds = %if.exit21
+  %13 = insertvalue %any undef, ptr %a, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %14, ptr %varargslots22, align 16
+  %15 = call i64 @std.io.printfn(ptr %retparam26, ptr @.str.10, i64 9, ptr %varargslots22, i64 1)
+  %not_err27 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err27, i1 true)
+  br i1 %16, label %after_check28, label %after_check28
+
+after_check28:                                    ; preds = %if.exit21, %after_check25, %after_check25
+  %optval30 = load i64, ptr %b.f, align 8
+  %not_err31 = icmp eq i64 %optval30, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %17, label %after_check32, label %after_check35
+
+after_check32:                                    ; preds = %after_check28
+  %18 = insertvalue %any undef, ptr %b, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %19, ptr %varargslots29, align 16
+  %20 = call i64 @std.io.printfn(ptr %retparam33, ptr @.str.11, i64 9, ptr %varargslots29, i64 1)
+  %not_err34 = icmp eq i64 %20, 0
+  %21 = call i1 @llvm.expect.i1(i1 %not_err34, i1 true)
+  br i1 %21, label %after_check35, label %after_check35
+
+after_check35:                                    ; preds = %after_check28, %after_check32, %after_check32
+  ret void
+}
diff --git a/test/test_suite7/errors/optional_contracts.c3 b/test/test_suite7/errors/optional_contracts.c3
new file mode 100644
index 000000000..7540d47b2
--- /dev/null
+++ b/test/test_suite7/errors/optional_contracts.c3
@@ -0,0 +1,35 @@
+fault Abc
+{
+	ABC,
+	DEF,
+	ZED
+}
+
+
+fault Foo
+{
+	XYZ
+}
+<*
+
+ hello world
+ @return! Foo, Abc.ABC
+ *>
+fn void! abc(int a, int b, int z)
+{
+	return Abc.ZED?; // #error: This value does not match declared optional returns
+}
+
+<*
+hello world
+ @return! Foo, Abc.ABC
+ *>
+macro void! @abc(int a, int b, int z)
+{
+	return Abc.ZED?; // #error: This value does not match declared optional returns
+}
+
+fn void main()
+{
+	@abc(2,3,3)!!;
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/optional_designated.c3 b/test/test_suite7/errors/optional_designated.c3
new file mode 100644
index 000000000..e141767e6
--- /dev/null
+++ b/test/test_suite7/errors/optional_designated.c3
@@ -0,0 +1,10 @@
+module foo;
+
+struct Foo { int a; }
+struct Bar { int b; Foo f; }
+fn void main()
+{
+	(Bar) { .f = (Foo) { foo() } }; // #error: not be discarded
+}
+
+fn int! foo() => 1;
\ No newline at end of file
diff --git a/test/test_suite7/errors/optional_discarded_func.c3 b/test/test_suite7/errors/optional_discarded_func.c3
new file mode 100644
index 000000000..871ba7ecb
--- /dev/null
+++ b/test/test_suite7/errors/optional_discarded_func.c3
@@ -0,0 +1,54 @@
+
+fn int abc(int x) { return 1; }
+fn int! def2(int y) @maydiscard { return 1; }
+fn int! def3(int z) { return 1; }
+
+fn void test1()
+{
+	int! x;
+	abc(x); // #error: The result of this call is optional due to its argumen
+}
+
+fn void test2()
+{
+	int! x;
+	int y;
+	abc(y);
+	abc(x) + 4; // #error: An optional value may not be discarded
+}
+
+fn void test3()
+{
+	int! x;
+	int y;
+	def2(1);
+	def2(x); // #error: The result of this call is optional due to its argumen
+}
+
+fn void test4()
+{
+	int! x;
+	int y;
+	def2(1);
+	def2(x) + 4; // #error: An optional value may not be discarded
+}
+
+fn void test5()
+{
+	int! x;
+	int y;
+	def3(y); // #error: The function returns 'int!'
+}
+
+fn void test6()
+{
+	int! x;
+	int y;
+	def3(x); // #error: The function returns 'int!'
+}
+
+fn void test7()
+{
+	int y;
+	def3(y) + 4; // #error: An optional value may not be discarded
+}
diff --git a/test/test_suite7/errors/optional_discarded_macro.c3 b/test/test_suite7/errors/optional_discarded_macro.c3
new file mode 100644
index 000000000..4dcc61e50
--- /dev/null
+++ b/test/test_suite7/errors/optional_discarded_macro.c3
@@ -0,0 +1,54 @@
+
+macro int abc(int x) { return 1; }
+macro int! def2(int y) @maydiscard { return 1; }
+macro int! def3(int z) { return 1; }
+
+fn void test1()
+{
+	int! x;
+	abc(x); // #error: The result of this call is optional due to its argumen
+}
+
+fn void test2()
+{
+	int! x;
+	int y;
+	abc(y);
+	abc(x) + 4; // #error: An optional value may not be discarded
+}
+
+fn void test3()
+{
+	int! x;
+	int y;
+	def2(1);
+	def2(x); // #error: The result of this call is optional due to its argumen
+}
+
+fn void test4()
+{
+	int! x;
+	int y;
+	def2(1);
+	def2(x) + 4; // #error: An optional value may not be discarded
+}
+
+fn void test5()
+{
+	int! x;
+	int y;
+	def3(y); // #error: The macro returns 'int!'
+}
+
+fn void test6()
+{
+	int! x;
+	int y;
+	def3(x); // #error: The macro returns 'int!'
+}
+
+fn void test7()
+{
+	int y;
+	def3(y) + 4; // #error: An optional value may not be discarded
+}
diff --git a/test/test_suite7/errors/optional_inits.c3t b/test/test_suite7/errors/optional_inits.c3t
new file mode 100644
index 000000000..54ac32e9c
--- /dev/null
+++ b/test/test_suite7/errors/optional_inits.c3t
@@ -0,0 +1,100 @@
+// #target: macos-x64
+
+module test;
+import std::io;
+fault Foo
+{
+    MY_VAL1,
+    MY_VAL2,
+}
+
+struct Bar
+{
+    int x;
+}
+
+fn void! test1() @maydiscard
+{
+    Bar! x = Foo.MY_VAL1?;
+    Bar y = x!;
+}
+
+fn void! test2() @maydiscard
+{
+    Bar! x = {};
+    Bar y = x!;
+}
+
+fn void main()
+{
+    test1();
+    test2();
+}
+
+/* #expect: test.ll
+
+define i64 @test.test1() #0 {
+entry:
+  %x = alloca %Bar, align 4
+  %x.f = alloca i64, align 8
+  %y = alloca %Bar, align 4
+  %error_var = alloca i64, align 8
+  store i64 ptrtoint (ptr @"test.Foo$MY_VAL1" to i64), ptr %x.f, align 8
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %1 = load i64, ptr %error_var, align 8
+  ret i64 %1
+
+noerr_block:                                      ; preds = %after_check
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 %x, i32 4, i1 false)
+  ret i64 0
+}
+
+
+define i64 @test.test2() #0 {
+entry:
+  %x = alloca %Bar, align 4
+  %x.f = alloca i64, align 8
+  %y = alloca %Bar, align 4
+  %error_var = alloca i64, align 8
+  store i32 0, ptr %x, align 4
+  store i64 0, ptr %x.f, align 8
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %1 = load i64, ptr %error_var, align 8
+  ret i64 %1
+
+noerr_block:                                      ; preds = %after_check
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 %x, i32 4, i1 false)
+  ret i64 0
+}
+
+
+define void @test.main() #0 {
+entry:
+  %0 = call i64 @test.test1()
+  %1 = call i64 @test.test2()
+  ret void
+}
diff --git a/test/test_suite7/errors/optional_sizeof.c3 b/test/test_suite7/errors/optional_sizeof.c3
new file mode 100644
index 000000000..e8455b594
--- /dev/null
+++ b/test/test_suite7/errors/optional_sizeof.c3
@@ -0,0 +1,43 @@
+fn int! abc()
+{
+	return 1;
+}
+macro test()
+{
+	return @catch(abc())?!!;
+}
+
+macro test2()
+{
+	return @catch(abc())?;
+}
+
+fn void a()
+{
+	String s = $typeof(test()).qnameof; // #error: This expression lacks
+}
+
+fn void b()
+{
+	$sizeof(test()); // #error: This expression lacks
+}
+
+fn void c()
+{
+	$sizeof(test2() ?? 1);
+}
+
+fn void! d()
+{
+	$typeof(test2()!) g; // #error: This expression lacks a concrete type
+}
+
+macro e()
+{
+	var g = test2()!; // #error: No type can be inferred from the optional result
+}
+
+fn void! h()
+{
+	e();
+}
diff --git a/test/test_suite7/errors/optional_taddr_and_access.c3t b/test/test_suite7/errors/optional_taddr_and_access.c3t
new file mode 100644
index 000000000..95bfbbd2f
--- /dev/null
+++ b/test/test_suite7/errors/optional_taddr_and_access.c3t
@@ -0,0 +1,118 @@
+// #target: macos-x64
+
+module test;
+struct Foo
+{
+    int x, y;
+}
+
+fault MyErr
+{
+    FOO
+}
+
+extern fn int printf(char *c, ...);
+
+fn void main()
+{
+    int! z = 2;
+    Foo*! w = &&(Foo){ z, 0 };
+    (void)printf("%d\n", w.x);
+    z = MyErr.FOO?;
+    w = &&(Foo){ z, 0 };
+    (void)printf("Not visible: %d\n", w.x);
+}
+
+/* #expect: test.ll
+
+%Foo = type { i32, i32 }
+
+@"$ct.test.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"test.MyErr$FOO" = linkonce constant %.fault { i64 ptrtoint (ptr @"$ct.test.MyErr" to i64), %"char[]" { ptr @.fault, i64 3 }, i64 1 }, align 8
+@.fault = internal constant [4 x i8] c"FOO\00", align 1
+@"$ct.test.MyErr" = linkonce global %.introspect { i8 9, i64 0, ptr null, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@.str.1 = private unnamed_addr constant [17 x i8] c"Not visible: %d\0A\00", align 1
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %z = alloca i32, align 4
+  %z.f = alloca i64, align 8
+  %w = alloca ptr, align 8
+  %w.f = alloca i64, align 8
+  %literal = alloca %Foo, align 4
+  %literal5 = alloca %Foo, align 4
+  store i32 2, ptr %z, align 4
+  store i64 0, ptr %z.f, align 8
+  %optval = load i64, ptr %z.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %w.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %z, align 4
+  store i32 %1, ptr %literal, align 4
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 4
+  store i32 0, ptr %ptradd, align 4
+  store ptr %literal, ptr %w, align 8
+  store i64 0, ptr %w.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check, %assign_optional
+  %optval1 = load i64, ptr %w.f, align 8
+  %not_err2 = icmp eq i64 %optval1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %2, label %after_check3, label %voiderr
+
+after_check3:                                     ; preds = %after_assign
+  %3 = load ptr, ptr %w, align 8
+  %4 = load i32, ptr %3, align 4
+  %5 = call i32 (ptr, ...) @printf(ptr @.str, i32 %4)
+  br label %voiderr
+
+voiderr:                                          ; preds = %after_check3, %after_assign
+  store i64 ptrtoint (ptr @"test.MyErr$FOO" to i64), ptr %z.f, align 8
+  br label %after_check4
+
+after_check4:                                     ; preds = %voiderr
+  %optval6 = load i64, ptr %z.f, align 8
+  %not_err7 = icmp eq i64 %optval6, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err7, i1 true)
+  br i1 %6, label %after_check9, label %assign_optional8
+
+assign_optional8:                                 ; preds = %after_check4
+  store i64 %optval6, ptr %w.f, align 8
+  br label %after_assign11
+
+after_check9:                                     ; preds = %after_check4
+  %7 = load i32, ptr %z, align 4
+  store i32 %7, ptr %literal5, align 4
+  %ptradd10 = getelementptr inbounds i8, ptr %literal5, i64 4
+  store i32 0, ptr %ptradd10, align 4
+  store ptr %literal5, ptr %w, align 8
+  store i64 0, ptr %w.f, align 8
+  br label %after_assign11
+
+after_assign11:                                   ; preds = %after_check9, %assign_optional8
+  %optval12 = load i64, ptr %w.f, align 8
+  %not_err13 = icmp eq i64 %optval12, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
+  br i1 %8, label %after_check14, label %voiderr15
+
+after_check14:                                    ; preds = %after_assign11
+  %9 = load ptr, ptr %w, align 8
+  %10 = load i32, ptr %9, align 4
+  %11 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %10)
+  br label %voiderr15
+
+voiderr15:                                        ; preds = %after_check14, %after_assign11
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/optional_untyped_list.c3 b/test/test_suite7/errors/optional_untyped_list.c3
new file mode 100644
index 000000000..c4c2f9581
--- /dev/null
+++ b/test/test_suite7/errors/optional_untyped_list.c3
@@ -0,0 +1,30 @@
+module test;
+struct Foo
+{
+    int x, y;
+}
+
+fault MyErr
+{
+    FOO
+}
+
+extern fn int printf(char *c, ...);
+
+fn void foo()
+{
+    int z = 2;
+    Foo*! w = &&{ z, 0 }; // #error: An untyped list can only have constant elements
+}
+
+fn void foo2()
+{
+    int! z = 2;
+    Foo*! w = &&{ z, 0 }; // #error: An untyped list can only have constant elements
+}
+
+fn void test()
+{
+    int! z = 2;
+    Foo*! w = &&Foo!{ z, 0 }; // #error: please remove the '!'
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/optional_with_optional.c3t b/test/test_suite7/errors/optional_with_optional.c3t
new file mode 100644
index 000000000..94e32b413
--- /dev/null
+++ b/test/test_suite7/errors/optional_with_optional.c3t
@@ -0,0 +1,295 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fault Foo { ABC, DEF }
+
+fn void main()
+{
+	io::printfn("1:%d", get_a(1) ?? get_b(4) ?? -1);
+	io::printfn("2:%d", get_a(2) ?? get_b(4) ?? -1);
+	io::printfn("3:%d", get_a(1) ?? get_b(5) ?? -1);
+	io::printfn("4:%s", @catch(Foo.ABC? ?? Foo.DEF?));
+	io::printfn("5:%s", Foo.ABC? ?? 3);
+	io::printfn("6:%s", @catch((3 > 2 ? Foo.ABC? : 4) ?? Foo.DEF?));
+	io::printfn("7:%s", @catch((3 < 2 ? Foo.ABC? : 4) ?? Foo.DEF?));
+	long x = Foo.DEF? ?? 3;
+	io::printfn("8:%s", x);
+	int! xy = Foo.ABC? ?? Foo.DEF?;
+}
+
+fn int! get_a(int x)
+{
+	if (x % 2) return Foo.ABC?;
+	return x * 2;
+}
+
+fn int! get_b(int x)
+{
+	if (x % 2 == 0) return Foo.ABC?;
+	return x * 2;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i32, align 4
+  %retparam1 = alloca i32, align 4
+  %taddr = alloca i32, align 4
+  %retparam7 = alloca i64, align 8
+  %varargslots10 = alloca [1 x %any], align 16
+  %retparam11 = alloca i32, align 4
+  %retparam15 = alloca i32, align 4
+  %taddr23 = alloca i32, align 4
+  %retparam24 = alloca i64, align 8
+  %varargslots27 = alloca [1 x %any], align 16
+  %retparam28 = alloca i32, align 4
+  %retparam32 = alloca i32, align 4
+  %taddr40 = alloca i32, align 4
+  %retparam41 = alloca i64, align 8
+  %varargslots44 = alloca [1 x %any], align 16
+  %blockret = alloca i64, align 8
+  %f = alloca i64, align 8
+  %retparam45 = alloca i64, align 8
+  %varargslots48 = alloca [1 x %any], align 16
+  %taddr49 = alloca i32, align 4
+  %retparam50 = alloca i64, align 8
+  %varargslots53 = alloca [1 x %any], align 16
+  %blockret54 = alloca i64, align 8
+  %f55 = alloca i64, align 8
+  %retparam62 = alloca i64, align 8
+  %varargslots65 = alloca [1 x %any], align 16
+  %blockret66 = alloca i64, align 8
+  %f67 = alloca i64, align 8
+  %retparam76 = alloca i64, align 8
+  %x = alloca i64, align 8
+  %varargslots79 = alloca [1 x %any], align 16
+  %retparam80 = alloca i64, align 8
+  %xy = alloca i32, align 4
+  %xy.f = alloca i64, align 8
+  %0 = call i64 @test.get_a(ptr %retparam, i32 1)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %2 = load i32, ptr %retparam, align 4
+  br label %phi_block5
+
+else_block:                                       ; preds = %entry
+  %3 = call i64 @test.get_b(ptr %retparam1, i32 4)
+  %not_err2 = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %4, label %after_check3, label %else_block4
+
+after_check3:                                     ; preds = %else_block
+  %5 = load i32, ptr %retparam1, align 4
+  br label %phi_block
+
+else_block4:                                      ; preds = %else_block
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block4, %after_check3
+  %val = phi i32 [ %5, %after_check3 ], [ -1, %else_block4 ]
+  br label %phi_block5
+
+phi_block5:                                       ; preds = %phi_block, %after_check
+  %val6 = phi i32 [ %2, %after_check ], [ %val, %phi_block ]
+  store i32 %val6, ptr %taddr, align 4
+  %6 = insertvalue %any undef, ptr %taddr, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %7, ptr %varargslots, align 16
+  %8 = call i64 @std.io.printfn(ptr %retparam7, ptr @.str, i64 4, ptr %varargslots, i64 1)
+  %9 = call i64 @test.get_a(ptr %retparam11, i32 2)
+  %not_err12 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err12, i1 true)
+  br i1 %10, label %after_check13, label %else_block14
+
+after_check13:                                    ; preds = %phi_block5
+  %11 = load i32, ptr %retparam11, align 4
+  br label %phi_block21
+
+else_block14:                                     ; preds = %phi_block5
+  %12 = call i64 @test.get_b(ptr %retparam15, i32 4)
+  %not_err16 = icmp eq i64 %12, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err16, i1 true)
+  br i1 %13, label %after_check17, label %else_block18
+
+after_check17:                                    ; preds = %else_block14
+  %14 = load i32, ptr %retparam15, align 4
+  br label %phi_block19
+
+else_block18:                                     ; preds = %else_block14
+  br label %phi_block19
+
+phi_block19:                                      ; preds = %else_block18, %after_check17
+  %val20 = phi i32 [ %14, %after_check17 ], [ -1, %else_block18 ]
+  br label %phi_block21
+
+phi_block21:                                      ; preds = %phi_block19, %after_check13
+  %val22 = phi i32 [ %11, %after_check13 ], [ %val20, %phi_block19 ]
+  store i32 %val22, ptr %taddr23, align 4
+  %15 = insertvalue %any undef, ptr %taddr23, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %16, ptr %varargslots10, align 16
+  %17 = call i64 @std.io.printfn(ptr %retparam24, ptr @.str.2, i64 4, ptr %varargslots10, i64 1)
+  %18 = call i64 @test.get_a(ptr %retparam28, i32 1)
+  %not_err29 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err29, i1 true)
+  br i1 %19, label %after_check30, label %else_block31
+
+after_check30:                                    ; preds = %phi_block21
+  %20 = load i32, ptr %retparam28, align 4
+  br label %phi_block38
+
+else_block31:                                     ; preds = %phi_block21
+  %21 = call i64 @test.get_b(ptr %retparam32, i32 5)
+  %not_err33 = icmp eq i64 %21, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err33, i1 true)
+  br i1 %22, label %after_check34, label %else_block35
+
+after_check34:                                    ; preds = %else_block31
+  %23 = load i32, ptr %retparam32, align 4
+  br label %phi_block36
+
+else_block35:                                     ; preds = %else_block31
+  br label %phi_block36
+
+phi_block36:                                      ; preds = %else_block35, %after_check34
+  %val37 = phi i32 [ %23, %after_check34 ], [ -1, %else_block35 ]
+  br label %phi_block38
+
+phi_block38:                                      ; preds = %phi_block36, %after_check30
+  %val39 = phi i32 [ %20, %after_check30 ], [ %val37, %phi_block36 ]
+  store i32 %val39, ptr %taddr40, align 4
+  %24 = insertvalue %any undef, ptr %taddr40, 0
+  %25 = insertvalue %any %24, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %25, ptr %varargslots27, align 16
+  %26 = call i64 @std.io.printfn(ptr %retparam41, ptr @.str.3, i64 4, ptr %varargslots27, i64 1)
+  br label %testblock
+
+testblock:                                        ; preds = %phi_block38
+  store i64 ptrtoint (ptr @"test.Foo$DEF" to i64), ptr %f, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %testblock
+  %27 = load i64, ptr %f, align 8
+  %i2b = icmp ne i64 %27, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %28 = load i64, ptr %f, align 8
+  store i64 %28, ptr %blockret, align 8
+  br label %expr_block.exit
+
+if.exit:                                          ; preds = %end_block
+  store i64 0, ptr %blockret, align 8
+  br label %expr_block.exit
+
+expr_block.exit:                                  ; preds = %if.exit, %if.then
+  %29 = insertvalue %any undef, ptr %blockret, 0
+  %30 = insertvalue %any %29, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %30, ptr %varargslots44, align 16
+  %31 = call i64 @std.io.printfn(ptr %retparam45, ptr @.str.4, i64 4, ptr %varargslots44, i64 1)
+  store i32 3, ptr %taddr49, align 4
+  %32 = insertvalue %any undef, ptr %taddr49, 0
+  %33 = insertvalue %any %32, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %33, ptr %varargslots48, align 16
+  %34 = call i64 @std.io.printfn(ptr %retparam50, ptr @.str.5, i64 4, ptr %varargslots48, i64 1)
+  br label %testblock56
+
+testblock56:                                      ; preds = %expr_block.exit
+  store i64 ptrtoint (ptr @"test.Foo$DEF" to i64), ptr %f55, align 8
+  br label %end_block57
+
+end_block57:                                      ; preds = %testblock56
+  %35 = load i64, ptr %f55, align 8
+  %i2b58 = icmp ne i64 %35, 0
+  br i1 %i2b58, label %if.then59, label %if.exit60
+
+if.then59:                                        ; preds = %end_block57
+  %36 = load i64, ptr %f55, align 8
+  store i64 %36, ptr %blockret54, align 8
+  br label %expr_block.exit61
+
+if.exit60:                                        ; preds = %end_block57
+  store i64 0, ptr %blockret54, align 8
+  br label %expr_block.exit61
+
+expr_block.exit61:                                ; preds = %if.exit60, %if.then59
+  %37 = insertvalue %any undef, ptr %blockret54, 0
+  %38 = insertvalue %any %37, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %38, ptr %varargslots53, align 16
+  %39 = call i64 @std.io.printfn(ptr %retparam62, ptr @.str.6, i64 4, ptr %varargslots53, i64 1)
+  br label %testblock68
+
+testblock68:                                      ; preds = %expr_block.exit61
+  br label %phi_block70
+
+phi_block70:                                      ; preds = %testblock68
+  store i64 0, ptr %f67, align 8
+  br label %end_block71
+
+end_block71:                                      ; preds = %phi_block70
+  %40 = load i64, ptr %f67, align 8
+  %i2b72 = icmp ne i64 %40, 0
+  br i1 %i2b72, label %if.then73, label %if.exit74
+
+if.then73:                                        ; preds = %end_block71
+  %41 = load i64, ptr %f67, align 8
+  store i64 %41, ptr %blockret66, align 8
+  br label %expr_block.exit75
+
+if.exit74:                                        ; preds = %end_block71
+  store i64 0, ptr %blockret66, align 8
+  br label %expr_block.exit75
+
+expr_block.exit75:                                ; preds = %if.exit74, %if.then73
+  %42 = insertvalue %any undef, ptr %blockret66, 0
+  %43 = insertvalue %any %42, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %43, ptr %varargslots65, align 16
+  %44 = call i64 @std.io.printfn(ptr %retparam76, ptr @.str.7, i64 4, ptr %varargslots65, i64 1)
+  store i64 3, ptr %x, align 8
+  %45 = insertvalue %any undef, ptr %x, 0
+  %46 = insertvalue %any %45, i64 ptrtoint (ptr @"$ct.long" to i64), 1
+  store %any %46, ptr %varargslots79, align 16
+  %47 = call i64 @std.io.printfn(ptr %retparam80, ptr @.str.8, i64 4, ptr %varargslots79, i64 1)
+  store i64 ptrtoint (ptr @"test.Foo$DEF" to i64), ptr %xy.f, align 8
+  ret void
+}
+
+; Function Attrs:
+define i64 @test.get_a(ptr %0, i32 %1) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %smod = srem i32 %1, 2
+  %i2b = icmp ne i32 %smod, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i64 ptrtoint (ptr @"test.Foo$ABC" to i64)
+
+if.exit:                                          ; preds = %entry
+  %mul = mul i32 %1, 2
+  store i32 %mul, ptr %0, align 4
+  ret i64 0
+}
+
+; Function Attrs:
+define i64 @test.get_b(ptr %0, i32 %1) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %smod = srem i32 %1, 2
+  %eq = icmp eq i32 %smod, 0
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i64 ptrtoint (ptr @"test.Foo$ABC" to i64)
+
+if.exit:                                          ; preds = %entry
+  %mul = mul i32 %1, 2
+  store i32 %mul, ptr %0, align 4
+  ret i64 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/or_and_rethrow.c3t b/test/test_suite7/errors/or_and_rethrow.c3t
new file mode 100644
index 000000000..cdfad2bb4
--- /dev/null
+++ b/test/test_suite7/errors/or_and_rethrow.c3t
@@ -0,0 +1,474 @@
+// #target: macos-x64
+module foo;
+import std::io;
+
+fault Foo { ABC }
+
+fn void blurb() { io::printn("Blurb");}
+
+macro int! tester()
+{
+	defer blurb();
+	return Foo.ABC?;
+}
+fn void! test(int x)
+{
+	io::printfn("test(%d)", x);
+	if (x || (tester()!)) io::printn("Ok1");
+	io::printn("Test next");
+	if (tester()! || x) io::printn("Ok?");
+	io::printn("Test ok");
+}
+
+fn void! test2(int x)
+{
+	io::printfn("test2(%d)", x);
+	if (x && (tester()!)) io::printn("Ok1");
+	io::printn("Test next");
+	if ((tester()!) && x) io::printn("Ok?");
+	io::printn("Test ok");
+}
+
+fn void main()
+{
+	anyfault a = @catch(test(0));
+	anyfault b = @catch(test(1));
+	anyfault c = @catch(test2(0));
+	anyfault d = @catch(test2(1));
+}
+
+/* #expect: foo.ll
+
+define i64 @foo.test(i32 %0) #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %blockret = alloca i32, align 4
+  %len = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %retparam4 = alloca i64, align 8
+  %error_var6 = alloca i64, align 8
+  %error_var12 = alloca i64, align 8
+  %len19 = alloca i64, align 8
+  %error_var20 = alloca i64, align 8
+  %retparam22 = alloca i64, align 8
+  %error_var28 = alloca i64, align 8
+  %error_var34 = alloca i64, align 8
+  %error_var42 = alloca i64, align 8
+  %blockret43 = alloca i32, align 4
+  store i32 %0, ptr %taddr, align 4
+  %1 = insertvalue %any undef, ptr %taddr, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.1, i64 8, ptr %varargslots, i64 1)
+  %i2b = icmp ne i32 %0, 0
+  br i1 %i2b, label %or.phi, label %or.rhs
+
+or.rhs:                                           ; preds = %entry
+  store i64 ptrtoint (ptr @"foo.Foo$ABC" to i64), ptr %error_var, align 8
+  br label %opt_block_cleanup
+
+opt_block_cleanup:                                ; preds = %or.rhs
+  call void @foo.blurb()
+  br label %guard_block
+
+guard_block:                                      ; preds = %opt_block_cleanup
+  %4 = load i64, ptr %error_var, align 8
+  ret i64 %4
+
+or.phi:                                           ; preds = %entry
+  br label %if.then
+
+if.then:                                          ; preds = %or.phi
+  %5 = call ptr @std.io.stdout()
+  %6 = call i64 @std.io.File.write(ptr %retparam4, ptr %5, ptr @.str.2, i64 3)
+  %not_err = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %if.then
+  store i64 %6, ptr %error_var2, align 8
+  br label %guard_block5
+
+after_check:                                      ; preds = %if.then
+  br label %noerr_block
+
+guard_block5:                                     ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %8 = load i64, ptr %retparam4, align 8
+  store i64 %8, ptr %len, align 8
+  %9 = call i64 @std.io.File.write_byte(ptr %5, i8 zeroext 10)
+  %not_err7 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err7, i1 true)
+  br i1 %10, label %after_check9, label %assign_optional8
+
+assign_optional8:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var6, align 8
+  br label %guard_block10
+
+after_check9:                                     ; preds = %noerr_block
+  br label %noerr_block11
+
+guard_block10:                                    ; preds = %assign_optional8
+  br label %voiderr
+
+noerr_block11:                                    ; preds = %after_check9
+  %11 = call i64 @std.io.File.flush(ptr %5)
+  %not_err13 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
+  br i1 %12, label %after_check15, label %assign_optional14
+
+assign_optional14:                                ; preds = %noerr_block11
+  store i64 %11, ptr %error_var12, align 8
+  br label %guard_block16
+
+after_check15:                                    ; preds = %noerr_block11
+  br label %noerr_block17
+
+guard_block16:                                    ; preds = %assign_optional14
+  br label %voiderr
+
+noerr_block17:                                    ; preds = %after_check15
+  %13 = load i64, ptr %len, align 8
+  %add = add i64 %13, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block17, %guard_block16, %guard_block10, %guard_block5
+  br label %if.exit
+
+if.exit:                                          ; preds = %voiderr
+  %14 = call ptr @std.io.stdout()
+  %15 = call i64 @std.io.File.write(ptr %retparam22, ptr %14, ptr @.str.3, i64 9)
+  %not_err23 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err23, i1 true)
+  br i1 %16, label %after_check25, label %assign_optional24
+
+assign_optional24:                                ; preds = %if.exit
+  store i64 %15, ptr %error_var20, align 8
+  br label %guard_block26
+
+after_check25:                                    ; preds = %if.exit
+  br label %noerr_block27
+
+guard_block26:                                    ; preds = %assign_optional24
+  br label %voiderr41
+
+noerr_block27:                                    ; preds = %after_check25
+  %17 = load i64, ptr %retparam22, align 8
+  store i64 %17, ptr %len19, align 8
+  %18 = call i64 @std.io.File.write_byte(ptr %14, i8 zeroext 10)
+  %not_err29 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err29, i1 true)
+  br i1 %19, label %after_check31, label %assign_optional30
+
+assign_optional30:                                ; preds = %noerr_block27
+  store i64 %18, ptr %error_var28, align 8
+  br label %guard_block32
+
+after_check31:                                    ; preds = %noerr_block27
+  br label %noerr_block33
+
+guard_block32:                                    ; preds = %assign_optional30
+  br label %voiderr41
+
+noerr_block33:                                    ; preds = %after_check31
+  %20 = call i64 @std.io.File.flush(ptr %14)
+  %not_err35 = icmp eq i64 %20, 0
+  %21 = call i1 @llvm.expect.i1(i1 %not_err35, i1 true)
+  br i1 %21, label %after_check37, label %assign_optional36
+
+assign_optional36:                                ; preds = %noerr_block33
+  store i64 %20, ptr %error_var34, align 8
+  br label %guard_block38
+
+after_check37:                                    ; preds = %noerr_block33
+  br label %noerr_block39
+
+guard_block38:                                    ; preds = %assign_optional36
+  br label %voiderr41
+
+noerr_block39:                                    ; preds = %after_check37
+  %22 = load i64, ptr %len19, align 8
+  %add40 = add i64 %22, 1
+  br label %voiderr41
+
+voiderr41:                                        ; preds = %noerr_block39, %guard_block38, %guard_block32, %guard_block26
+  store i64 ptrtoint (ptr @"foo.Foo$ABC" to i64), ptr %error_var42, align 8
+  br label %opt_block_cleanup44
+
+opt_block_cleanup44:                              ; preds = %voiderr41
+  call void @foo.blurb()
+  br label %guard_block45
+
+guard_block45:                                    ; preds = %opt_block_cleanup44
+  %23 = load i64, ptr %error_var42, align 8
+  ret i64 %23
+}
+
+; Function Attrs:
+define i64 @foo.test2(i32 %0) #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %blockret = alloca i32, align 4
+  %len = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %retparam4 = alloca i64, align 8
+  %error_var6 = alloca i64, align 8
+  %error_var12 = alloca i64, align 8
+  %error_var18 = alloca i64, align 8
+  %blockret19 = alloca i32, align 4
+  store i32 %0, ptr %taddr, align 4
+  %1 = insertvalue %any undef, ptr %taddr, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.4, i64 9, ptr %varargslots, i64 1)
+  %i2b = icmp ne i32 %0, 0
+  br i1 %i2b, label %and.rhs, label %and.phi
+
+and.rhs:                                          ; preds = %entry
+  store i64 ptrtoint (ptr @"foo.Foo$ABC" to i64), ptr %error_var, align 8
+  br label %opt_block_cleanup
+
+opt_block_cleanup:                                ; preds = %and.rhs
+  call void @foo.blurb()
+  br label %guard_block
+
+guard_block:                                      ; preds = %opt_block_cleanup
+  %4 = load i64, ptr %error_var, align 8
+  ret i64 %4
+
+and.phi:                                          ; preds = %entry
+  br label %if.exit
+
+if.exit:                                          ; preds = %and.phi
+  %5 = call ptr @std.io.stdout()
+  %6 = call i64 @std.io.File.write(ptr %retparam4, ptr %5, ptr @.str.5, i64 9)
+  %not_err = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %if.exit
+  store i64 %6, ptr %error_var2, align 8
+  br label %guard_block5
+
+after_check:                                      ; preds = %if.exit
+  br label %noerr_block
+
+guard_block5:                                     ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %8 = load i64, ptr %retparam4, align 8
+  store i64 %8, ptr %len, align 8
+  %9 = call i64 @std.io.File.write_byte(ptr %5, i8 zeroext 10)
+  %not_err7 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err7, i1 true)
+  br i1 %10, label %after_check9, label %assign_optional8
+
+assign_optional8:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var6, align 8
+  br label %guard_block10
+
+after_check9:                                     ; preds = %noerr_block
+  br label %noerr_block11
+
+guard_block10:                                    ; preds = %assign_optional8
+  br label %voiderr
+
+noerr_block11:                                    ; preds = %after_check9
+  %11 = call i64 @std.io.File.flush(ptr %5)
+  %not_err13 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
+  br i1 %12, label %after_check15, label %assign_optional14
+
+assign_optional14:                                ; preds = %noerr_block11
+  store i64 %11, ptr %error_var12, align 8
+  br label %guard_block16
+
+after_check15:                                    ; preds = %noerr_block11
+  br label %noerr_block17
+
+guard_block16:                                    ; preds = %assign_optional14
+  br label %voiderr
+
+noerr_block17:                                    ; preds = %after_check15
+  %13 = load i64, ptr %len, align 8
+  %add = add i64 %13, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block17, %guard_block16, %guard_block10, %guard_block5
+  store i64 ptrtoint (ptr @"foo.Foo$ABC" to i64), ptr %error_var18, align 8
+  br label %opt_block_cleanup20
+
+opt_block_cleanup20:                              ; preds = %voiderr
+  call void @foo.blurb()
+  br label %guard_block21
+
+guard_block21:                                    ; preds = %opt_block_cleanup20
+  %14 = load i64, ptr %error_var18, align 8
+  ret i64 %14
+}
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %a = alloca i64, align 8
+  %blockret = alloca i64, align 8
+  %f = alloca i64, align 8
+  %b = alloca i64, align 8
+  %blockret1 = alloca i64, align 8
+  %f2 = alloca i64, align 8
+  %c = alloca i64, align 8
+  %blockret12 = alloca i64, align 8
+  %f13 = alloca i64, align 8
+  %d = alloca i64, align 8
+  %blockret23 = alloca i64, align 8
+  %f24 = alloca i64, align 8
+  br label %testblock
+
+testblock:                                        ; preds = %entry
+  %0 = call i64 @foo.test(i32 0)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %0, ptr %f, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %testblock
+  store i64 0, ptr %f, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check, %assign_optional
+  %2 = load i64, ptr %f, align 8
+  %i2b = icmp ne i64 %2, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %3 = load i64, ptr %f, align 8
+  store i64 %3, ptr %blockret, align 8
+  br label %expr_block.exit
+
+if.exit:                                          ; preds = %end_block
+  store i64 0, ptr %blockret, align 8
+  br label %expr_block.exit
+
+expr_block.exit:                                  ; preds = %if.exit, %if.then
+  %4 = load i64, ptr %blockret, align 8
+  store i64 %4, ptr %a, align 8
+  br label %testblock3
+
+testblock3:                                       ; preds = %expr_block.exit
+  %5 = call i64 @foo.test(i32 1)
+  %not_err4 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err4, i1 true)
+  br i1 %6, label %after_check6, label %assign_optional5
+
+assign_optional5:                                 ; preds = %testblock3
+  store i64 %5, ptr %f2, align 8
+  br label %end_block7
+
+after_check6:                                     ; preds = %testblock3
+  store i64 0, ptr %f2, align 8
+  br label %end_block7
+
+end_block7:                                       ; preds = %after_check6, %assign_optional5
+  %7 = load i64, ptr %f2, align 8
+  %i2b8 = icmp ne i64 %7, 0
+  br i1 %i2b8, label %if.then9, label %if.exit10
+
+if.then9:                                         ; preds = %end_block7
+  %8 = load i64, ptr %f2, align 8
+  store i64 %8, ptr %blockret1, align 8
+  br label %expr_block.exit11
+
+if.exit10:                                        ; preds = %end_block7
+  store i64 0, ptr %blockret1, align 8
+  br label %expr_block.exit11
+
+expr_block.exit11:                                ; preds = %if.exit10, %if.then9
+  %9 = load i64, ptr %blockret1, align 8
+  store i64 %9, ptr %b, align 8
+  br label %testblock14
+
+testblock14:                                      ; preds = %expr_block.exit11
+  %10 = call i64 @foo.test2(i32 0)
+  %not_err15 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err15, i1 true)
+  br i1 %11, label %after_check17, label %assign_optional16
+
+assign_optional16:                                ; preds = %testblock14
+  store i64 %10, ptr %f13, align 8
+  br label %end_block18
+
+after_check17:                                    ; preds = %testblock14
+  store i64 0, ptr %f13, align 8
+  br label %end_block18
+
+end_block18:                                      ; preds = %after_check17, %assign_optional16
+  %12 = load i64, ptr %f13, align 8
+  %i2b19 = icmp ne i64 %12, 0
+  br i1 %i2b19, label %if.then20, label %if.exit21
+
+if.then20:                                        ; preds = %end_block18
+  %13 = load i64, ptr %f13, align 8
+  store i64 %13, ptr %blockret12, align 8
+  br label %expr_block.exit22
+
+if.exit21:                                        ; preds = %end_block18
+  store i64 0, ptr %blockret12, align 8
+  br label %expr_block.exit22
+
+expr_block.exit22:                                ; preds = %if.exit21, %if.then20
+  %14 = load i64, ptr %blockret12, align 8
+  store i64 %14, ptr %c, align 8
+  br label %testblock25
+
+testblock25:                                      ; preds = %expr_block.exit22
+  %15 = call i64 @foo.test2(i32 1)
+  %not_err26 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err26, i1 true)
+  br i1 %16, label %after_check28, label %assign_optional27
+
+assign_optional27:                                ; preds = %testblock25
+  store i64 %15, ptr %f24, align 8
+  br label %end_block29
+
+after_check28:                                    ; preds = %testblock25
+  store i64 0, ptr %f24, align 8
+  br label %end_block29
+
+end_block29:                                      ; preds = %after_check28, %assign_optional27
+  %17 = load i64, ptr %f24, align 8
+  %i2b30 = icmp ne i64 %17, 0
+  br i1 %i2b30, label %if.then31, label %if.exit32
+
+if.then31:                                        ; preds = %end_block29
+  %18 = load i64, ptr %f24, align 8
+  store i64 %18, ptr %blockret23, align 8
+  br label %expr_block.exit33
+
+if.exit32:                                        ; preds = %end_block29
+  store i64 0, ptr %blockret23, align 8
+  br label %expr_block.exit33
+
+expr_block.exit33:                                ; preds = %if.exit32, %if.then31
+  %19 = load i64, ptr %blockret23, align 8
+  store i64 %19, ptr %d, align 8
+  ret void
+}
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @foo.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/errors/or_err_bool.c3t b/test/test_suite7/errors/or_err_bool.c3t
new file mode 100644
index 000000000..4a0b48e15
--- /dev/null
+++ b/test/test_suite7/errors/or_err_bool.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+
+module test;
+
+fn void tester()
+{
+	bool! x = false;
+	x ?? true;
+}
+
+/* #expect: test.ll
+
+define void @test.tester() #0 {
+entry:
+  %x = alloca i8, align 1
+  %x.f = alloca i64, align 8
+  store i8 0, ptr %x, align 1
+  store i64 0, ptr %x.f, align 8
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %1 = load i8, ptr %x, align 1
+  %2 = trunc i8 %1 to i1
+  br label %phi_block
+
+else_block:                                       ; preds = %entry
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %after_check
+  %val = phi i1 [ %2, %after_check ], [ true, %else_block ]
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/or_err_infer.c3t b/test/test_suite7/errors/or_err_infer.c3t
new file mode 100644
index 000000000..cda307534
--- /dev/null
+++ b/test/test_suite7/errors/or_err_infer.c3t
@@ -0,0 +1,96 @@
+// #target: macos-x64
+enum Foo
+{
+	ABC,
+	DEF
+}
+
+fn int main()
+{
+	int a;
+	Foo! x = ABC;
+	Foo f = x ?? DEF;
+	return 0;
+}
+
+/* expect: test.ll
+
+define void @top_down_casts.test() #0 {
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %z = alloca i64, align 8
+  %w = alloca i32, align 4
+  %w.f = alloca i64, align 8
+  store i32 0, ptr %x, align 4
+  store i32 0, ptr %y, align 4
+  %0 = load i32, ptr %x, align 4
+  %sext = sext i32 %0 to i64
+  %1 = load i32, ptr %y, align 4
+  %sext1 = sext i32 %1 to i64
+  %mul = mul i64 %sext, %sext1
+  store i64 %mul, ptr %z, align 8
+  %2 = load i32, ptr %x, align 4
+  %3 = load i32, ptr %y, align 4
+  %sdiv = sdiv i32 %2, %3
+  %sext2 = sext i32 %sdiv to i64
+  store i64 %sext2, ptr %z, align 8
+  %4 = load i32, ptr %x, align 4
+  %sext3 = sext i32 %4 to i64
+  %5 = load i32, ptr %y, align 4
+  %sext4 = sext i32 %5 to i64
+  %add = add i64 %sext3, %sext4
+  store i64 %add, ptr %z, align 8
+  %6 = load i32, ptr %x, align 4
+  %sext5 = sext i32 %6 to i64
+  %7 = load i32, ptr %y, align 4
+  %sext6 = sext i32 %7 to i64
+  %sub = sub i64 %sext5, %sext6
+  store i64 %sub, ptr %z, align 8
+  %8 = load i32, ptr %x, align 4
+  %9 = load i32, ptr %y, align 4
+  %smod = srem i32 %8, %9
+  %sext7 = sext i32 %smod to i64
+  store i64 %sext7, ptr %z, align 8
+  %10 = load i32, ptr %x, align 4
+  %sext8 = sext i32 %10 to i64
+  %11 = load i32, ptr %y, align 4
+  %zext = zext i32 %11 to i64
+  %shl = shl i64 %sext8, %zext
+  %12 = freeze i64 %shl
+  store i64 %12, ptr %z, align 8
+  %13 = load i32, ptr %x, align 4
+  %sext9 = sext i32 %13 to i64
+  %14 = load i32, ptr %y, align 4
+  %zext10 = zext i32 %14 to i64
+  %ashr = ashr i64 %sext9, %zext10
+  %15 = freeze i64 %ashr
+  store i64 %15, ptr %z, align 8
+  %16 = load i32, ptr %x, align 4
+  %bnot = xor i32 %16, -1
+  %sext11 = sext i32 %bnot to i64
+  store i64 %sext11, ptr %z, align 8
+  %17 = load i32, ptr %x, align 4
+  %neg = sub i32 0, %17
+  %sext12 = sext i32 %neg to i64
+  store i64 %sext12, ptr %z, align 8
+  store i64 0, ptr %w.f, align 8
+  store i32 0, ptr %w, align 4
+  %optval = load i64, ptr %w.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %18, label %after_check, label %else_block
+
+after_check:                                      ; preds = %entry
+  %19 = load i32, ptr %w, align 4
+  %sext13 = sext i32 %19 to i64
+  br label %phi_block
+
+else_block:                                       ; preds = %entry
+  br label %phi_block
+
+phi_block:                                        ; preds = %else_block, %after_check
+  %val = phi i64 [ %sext13, %after_check ], [ 1, %else_block ]
+  store i64 %val, ptr %z, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/precedence_err.c3 b/test/test_suite7/errors/precedence_err.c3
new file mode 100644
index 000000000..0d80271cb
--- /dev/null
+++ b/test/test_suite7/errors/precedence_err.c3
@@ -0,0 +1,5 @@
+
+fn void test()
+{
+    int x = 3 ^ 5 & 6; // #error: You need to add explicit parentheses to clarify precedence
+}
diff --git a/test/test_suite7/errors/printing_errors.c3t b/test/test_suite7/errors/printing_errors.c3t
new file mode 100644
index 000000000..4472a92c2
--- /dev/null
+++ b/test/test_suite7/errors/printing_errors.c3t
@@ -0,0 +1,59 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fault Cde
+{
+	HELLO,
+	WORLD,
+}
+fn void main()
+{
+	anyfault x = Cde.WORLD;
+	io::printf("%s %s\n", Cde.HELLO.nameof, x.nameof);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %x = alloca i64, align 8
+  %varargslots = alloca [2 x %any], align 16
+  %taddr = alloca %"char[]", align 8
+  %faultname_zero = alloca %"char[]", align 8
+  %retparam = alloca i64, align 8
+  store i64 ptrtoint (ptr @"test.Cde$WORLD" to i64), ptr %x, align 8
+  store %"char[]" { ptr @.str.2, i64 5 }, ptr %taddr, align 8
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = load i64, ptr %x, align 8
+  %eq = icmp eq i64 %2, 0
+  br i1 %eq, label %faultname_no, label %faultname_ok
+
+faultname_no:                                     ; preds = %entry
+  call void @llvm.memset.p0.i64(ptr align 8 %faultname_zero, i8 0, i64 16, i1 false)
+  br label %faultname_exit
+
+faultname_ok:                                     ; preds = %entry
+  %3 = inttoptr i64 %2 to ptr
+  %4 = getelementptr inbounds
+  br label %faultname_exit
+
+faultname_exit:                                   ; preds = %faultname_ok, %faultname_no
+  %faultname = phi ptr [ %faultname_zero, %faultname_no ], [ %4, %faultname_ok ]
+  %5 = insertvalue %any undef, ptr %faultname, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %6, ptr %ptradd, align 16
+  %7 = call i64 @std.io.printf(ptr %retparam, ptr @.str, i64 6, ptr %varargslots, i64 2)
+  ret void
+}
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
+
diff --git a/test/test_suite7/errors/rethrow.c3t b/test/test_suite7/errors/rethrow.c3t
new file mode 100644
index 000000000..c94875567
--- /dev/null
+++ b/test/test_suite7/errors/rethrow.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+
+fn void! test()
+{
+    int! i;
+    i!;
+}
+
+/* #expect: rethrow.ll
+
+  %i = alloca i32, align 4
+  %i.f = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  store i64 0, ptr %i.f, align 8
+  store i32 0, ptr %i, align 4
+  %optval = load i64, ptr %i.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %1 = load i64, ptr %error_var, align 8
+  ret i64 %1
+
+noerr_block:                                      ; preds = %after_check
+  ret i64 0
+}
diff --git a/test/test_suite7/errors/rethrow_macro.c3 b/test/test_suite7/errors/rethrow_macro.c3
new file mode 100644
index 000000000..2e9f12a46
--- /dev/null
+++ b/test/test_suite7/errors/rethrow_macro.c3
@@ -0,0 +1,14 @@
+module testing;
+import std::io;
+
+macro char[] read(src, Allocator allocator, n)
+{
+    char* data = allocator::malloc_try(allocator, n)!; // #error: Rethrow is only allowed in macros
+    io::read_all(src, data[:n])!;
+}
+
+fn void main()
+{
+    ByteReader br;
+    read(&br, allocator::temp(), 10);
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/rethrow_mingw.c3t b/test/test_suite7/errors/rethrow_mingw.c3t
new file mode 100644
index 000000000..9713916ee
--- /dev/null
+++ b/test/test_suite7/errors/rethrow_mingw.c3t
@@ -0,0 +1,40 @@
+// #target: mingw-x64
+
+module rethrow;
+
+fn void! test()
+{
+    int! i;
+    i!;
+}
+
+/* #expect: rethrow.ll
+
+define i64 @rethrow.test() #0 {
+entry:
+  %i = alloca i32, align 4
+  %i.f = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  store i64 0, ptr %i.f, align 8
+  store i32 0, ptr %i, align 4
+  %optval = load i64, ptr %i.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %1 = load i64, ptr %error_var, align 8
+  ret i64 %1
+
+noerr_block:                                      ; preds = %after_check
+  ret i64 0
+}
+
+
diff --git a/test/test_suite7/errors/rethrow_no_err.c3 b/test/test_suite7/errors/rethrow_no_err.c3
new file mode 100644
index 000000000..0a86ff526
--- /dev/null
+++ b/test/test_suite7/errors/rethrow_no_err.c3
@@ -0,0 +1,17 @@
+
+fn void test()
+{
+    test()!; // #error: No optional to rethrow before '!' in the expression, please remove '!'
+    int i = 0;
+    if (i!) return; // #error: No optional to rethrow before '!' in the expression, please remove '!'
+    int! j = 0;
+    if (j!) return; // #error: This expression implicitly returns with an optional result, but the function
+    if ((j!)!) return; // #error: This expression implicitly returns with an optional result, but the function
+}
+
+fn void! test2()
+{
+    int! j = 0;
+    if (j!) return;
+    if ((j!)!) return; // #error: No optional to rethrow before '!' in the expression, please remove '!'
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/simple_static_failable.c3t b/test/test_suite7/errors/simple_static_failable.c3t
new file mode 100644
index 000000000..d284b40cb
--- /dev/null
+++ b/test/test_suite7/errors/simple_static_failable.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+
+module foo;
+
+fault Blurg
+{
+    Y
+}
+
+fn void main()
+{
+    static int! x = 120;
+    int! i = Blurg.Y?;
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %i = alloca i32, align 4
+  %i.f = alloca i64, align 8
+  store i64 ptrtoint (ptr @"foo.Blurg$Y" to i64), ptr %i.f, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/switch_default_catch.c3 b/test/test_suite7/errors/switch_default_catch.c3
new file mode 100644
index 000000000..81b7ac8e2
--- /dev/null
+++ b/test/test_suite7/errors/switch_default_catch.c3
@@ -0,0 +1,10 @@
+fn void main()
+{
+	int! x;
+	if (catch err = x)
+	{
+		default: // #warning: 'if-catch'
+			return;
+	}
+	return;
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/ternary_void_fault.c3t b/test/test_suite7/errors/ternary_void_fault.c3t
new file mode 100644
index 000000000..d8a279213
--- /dev/null
+++ b/test/test_suite7/errors/ternary_void_fault.c3t
@@ -0,0 +1,71 @@
+// #target: macos-x64
+module test;
+fn void! x() {}
+fn void main()
+{
+	int a;
+	@catch(a > 0 ? x() : x());
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca i32, align 4
+  %blockret = alloca i64, align 8
+  %f = alloca i64, align 8
+  store i32 0, ptr %a, align 4
+  br label %testblock
+
+testblock:                                        ; preds = %entry
+  %0 = load i32, ptr %a, align 4
+  %gt = icmp sgt i32 %0, 0
+  br i1 %gt, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %testblock
+  %1 = call i64 @test.x()
+  %not_err = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %cond.lhs
+  store i64 %1, ptr %f, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %cond.lhs
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %testblock
+  %3 = call i64 @test.x()
+  %not_err1 = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err1, i1 true)
+  br i1 %4, label %after_check3, label %assign_optional2
+
+assign_optional2:                                 ; preds = %cond.rhs
+  store i64 %3, ptr %f, align 8
+  br label %end_block
+
+after_check3:                                     ; preds = %cond.rhs
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %after_check3, %after_check
+  store i64 0, ptr %f, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %cond.phi, %assign_optional2, %assign_optional
+  %5 = load i64, ptr %f, align 8
+  %i2b = icmp ne i64 %5, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  %6 = load i64, ptr %f, align 8
+  store i64 %6, ptr %blockret, align 8
+  br label %expr_block.exit
+
+if.exit:                                          ; preds = %end_block
+  store i64 0, ptr %blockret, align 8
+  br label %expr_block.exit
+
+expr_block.exit:                                  ; preds = %if.exit, %if.then
+  ret void
+}
diff --git a/test/test_suite7/errors/try_assign.c3t b/test/test_suite7/errors/try_assign.c3t
new file mode 100644
index 000000000..eafbee252
--- /dev/null
+++ b/test/test_suite7/errors/try_assign.c3t
@@ -0,0 +1,154 @@
+// #target: macos-x64
+
+extern fn int! err();
+fault FooErr { QBERT }
+extern fn int printf(char* fmt, ...);
+
+fn void main()
+{
+    int! z = 234;
+    int! w;
+    if (try x = z && try gh = w)
+    {
+        printf("Success %d && %d!\n", x, gh);
+    }
+    if (try x = z + w)
+    {
+       printf("Test\n");
+    }
+    if (catch e = z)
+    {
+        printf("Oh noes!\n");
+    }
+}
+
+/* #expect: try_assign.ll
+
+define void @try_assign.main() #0 {
+entry:
+  %z = alloca i32, align 4
+  %z.f = alloca i64, align 8
+  %w = alloca i32, align 4
+  %w.f = alloca i64, align 8
+  %x = alloca i32, align 4
+  %gh = alloca i32, align 4
+  %x8 = alloca i32, align 4
+  %e = alloca i64, align 8
+  store i32 234, ptr %z, align 4
+  store i64 0, ptr %z.f, align 8
+  store i64 0, ptr %w.f, align 8
+  store i32 0, ptr %w, align 4
+  store i32 0, ptr %x, align 4
+  %optval = load i64, ptr %z.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %catch_landing
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %z, align 4
+  store i32 %1, ptr %x, align 4
+  br label %phi_try_catch
+
+catch_landing:                                    ; preds = %entry
+  br label %phi_try_catch
+
+phi_try_catch:                                    ; preds = %catch_landing, %after_check
+  %val = phi i1 [ true, %after_check ], [ false, %catch_landing ]
+  br i1 %val, label %chain_next, label %fail_chain
+
+chain_next:                                       ; preds = %phi_try_catch
+  store i32 0, ptr %gh, align 4
+  %optval1 = load i64, ptr %w.f, align 8
+  %not_err2 = icmp eq i64 %optval1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %2, label %after_check3, label %catch_landing4
+
+after_check3:                                     ; preds = %chain_next
+  %3 = load i32, ptr %w, align 4
+  store i32 %3, ptr %gh, align 4
+  br label %phi_try_catch5
+
+catch_landing4:                                   ; preds = %chain_next
+  br label %phi_try_catch5
+
+phi_try_catch5:                                   ; preds = %catch_landing4, %after_check3
+  %val6 = phi i1 [ true, %after_check3 ], [ false, %catch_landing4 ]
+  br i1 %val6, label %chain_next7, label %fail_chain
+
+chain_next7:                                      ; preds = %phi_try_catch5
+  br label %end_chain
+
+fail_chain:                                       ; preds = %phi_try_catch5, %phi_try_catch
+  br label %end_chain
+
+end_chain:                                        ; preds = %fail_chain, %chain_next7
+  %chain.phi = phi i1 [ true, %chain_next7 ], [ false, %fail_chain ]
+  br i1 %chain.phi, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_chain
+  %4 = load i32, ptr %x, align 4
+  %5 = load i32, ptr %gh, align 4
+  %6 = call i32 (ptr, ...) @printf(ptr @.str, i32 %4, i32 %5)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %end_chain
+  store i32 0, ptr %x8, align 4
+  %optval9 = load i64, ptr %z.f, align 8
+  %not_err10 = icmp eq i64 %optval9, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %7, label %after_check11, label %catch_landing15
+
+after_check11:                                    ; preds = %if.exit
+  %8 = load i32, ptr %z, align 4
+  %optval12 = load i64, ptr %w.f, align 8
+  %not_err13 = icmp eq i64 %optval12, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
+  br i1 %9, label %after_check14, label %catch_landing15
+
+after_check14:                                    ; preds = %after_check11
+  %10 = load i32, ptr %w, align 4
+  %add = add i32 %8, %10
+  store i32 %add, ptr %x8, align 4
+  br label %phi_try_catch16
+
+catch_landing15:                                  ; preds = %after_check11, %if.exit
+  br label %phi_try_catch16
+
+phi_try_catch16:                                  ; preds = %catch_landing15, %after_check14
+  %val17 = phi i1 [ true, %after_check14 ], [ false, %catch_landing15 ]
+  br i1 %val17, label %if.then18, label %if.exit19
+
+if.then18:                                        ; preds = %phi_try_catch16
+  %11 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  br label %if.exit19
+
+if.exit19:                                        ; preds = %if.then18, %phi_try_catch16
+  br label %testblock
+
+testblock:                                        ; preds = %if.exit19
+  %optval20 = load i64, ptr %z.f, align 8
+  %not_err21 = icmp eq i64 %optval20, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err21, i1 true)
+  br i1 %12, label %after_check22, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %optval20, ptr %e, align 8
+  br label %end_block
+
+after_check22:                                    ; preds = %testblock
+  store i64 0, ptr %e, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check22, %assign_optional
+  %13 = load i64, ptr %e, align 8
+  %i2b = icmp ne i64 %13, 0
+  br i1 %i2b, label %if.then23, label %if.exit24
+
+if.then23:                                        ; preds = %end_block
+  %14 = call i32 (ptr, ...) @printf(ptr @.str.2)
+  br label %if.exit24
+
+if.exit24:                                        ; preds = %if.then23, %end_block
+  ret void
+}
+
diff --git a/test/test_suite7/errors/try_catch_if.c3t b/test/test_suite7/errors/try_catch_if.c3t
new file mode 100644
index 000000000..10479e060
--- /dev/null
+++ b/test/test_suite7/errors/try_catch_if.c3t
@@ -0,0 +1,101 @@
+// #target: macos-x64
+
+fn int hello(int x)
+{
+    return x + 1;
+}
+
+extern fn int printf(char *c, ...);
+
+fn int! tester()
+{
+    printf("In tester\n");
+    return 222;
+}
+
+fault Foo
+{
+    A
+}
+fn void test1()
+{
+    int! a = 123;
+    if (catch err = a, tester())
+    {
+        printf("Err\n");
+    }
+    else
+    {
+        printf("Noerr %d\n", a);
+    }
+}
+fn void main()
+{
+    test1();
+}
+
+/* #expect: try_catch_if.ll
+
+
+define i64 @try_catch_if.tester(ptr %0) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %1 = call i32 (ptr, ...) @printf(ptr @.str)
+  store i32 222, ptr %0, align 4
+  ret i64 0
+}
+
+define void @try_catch_if.test1() #0 {
+entry:
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %err = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  store i32 123, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  br label %testblock
+
+testblock:                                        ; preds = %entry
+  %optval = load i64, ptr %a.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %optval, ptr %err, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %testblock
+  br label %testblock1
+
+testblock1:                                       ; preds = %after_check
+  %1 = call i64 @try_catch_if.tester(ptr %retparam)
+  %not_err2 = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %2, label %after_check4, label %assign_optional3
+
+assign_optional3:                                 ; preds = %testblock1
+  store i64 %1, ptr %err, align 8
+  br label %end_block
+
+after_check4:                                     ; preds = %testblock1
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check4, %assign_optional3, %assign_optional
+  %3 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %3, 0
+  br i1 %i2b, label %if.then, label %if.else
+
+if.then:                                          ; preds = %end_block
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  br label %if.exit
+
+if.else:                                          ; preds = %end_block
+  %5 = load i32, ptr %a, align 4
+  %6 = call i32 (ptr, ...) @printf(ptr @.str.2, i32 %5)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.else, %if.then
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/try_catch_unwrapping_while_if.c3 b/test/test_suite7/errors/try_catch_unwrapping_while_if.c3
new file mode 100644
index 000000000..2153a110f
--- /dev/null
+++ b/test/test_suite7/errors/try_catch_unwrapping_while_if.c3
@@ -0,0 +1,97 @@
+extern fn int printf(char* fmt, ...);
+
+extern fn int! err();
+fault FooErr
+{
+    X
+}
+fn void test1()
+{
+    int! z = 234;
+    if (try z)
+    {
+        int y = z;
+        z = 12;
+        z = FooErr.X?; // #error: The variable is unwrapped in this context
+    }
+}
+
+
+fn void test4()
+{
+    int! z = 234;
+    int! w = 123;
+    if (try z && try w && 1)
+    {
+        int y = z;
+        y = w;
+    }
+}
+
+fn void test5()
+{
+    int! z = 234;
+    int! w = 123;
+    if (try z && try w)
+    {
+        int y = z;
+    }
+}
+fn void test5b()
+{
+    int! z = 234;
+    int! w = 123;
+    if (try z && try z) // #error: This variable is already unwrapped, so you cannot use 'try' on it again, please remove the 'try'.
+    {
+        int y = z;
+    }
+}
+
+fn void test6()
+{
+    int! z = 234;
+    int! w = 123;
+    while (try z)
+    {
+        int y = z;
+        break;
+    }
+}
+
+fn void test7()
+{
+    int! z = 234;
+    int! w = 123;
+    if (catch z)
+    {
+    }
+    else
+    {
+        int y = z;
+    }
+}
+
+fn void test8()
+{
+    int! z = 234;
+    int! w = 123;
+    if (catch z)
+    {
+    }
+    else
+    {
+        int y = z;
+    }
+}
+fn void test9()
+{
+    int! z = 234;
+    int! w = 123;
+    if (catch e = z)
+    {
+    }
+    else
+    {
+        int y = z;
+    }
+}
diff --git a/test/test_suite7/errors/try_expr.c3t b/test/test_suite7/errors/try_expr.c3t
new file mode 100644
index 000000000..9ca8de6f2
--- /dev/null
+++ b/test/test_suite7/errors/try_expr.c3t
@@ -0,0 +1,49 @@
+// #target: macos-x64
+module foo;
+import std::io;
+
+fn void main()
+{
+	int a;
+	if (try foo())
+	{
+		a--;
+	}
+	else
+	{
+		a++;
+	}
+}
+
+fn void! foo() {}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %a = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  %0 = call i64 @foo.foo()
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %catch_landing
+after_check:                                      ; preds = %entry
+  br label %phi_try_catch
+catch_landing:                                    ; preds = %entry
+  br label %phi_try_catch
+phi_try_catch:                                    ; preds = %catch_landing, %after_check
+  %val = phi i1 [ true, %after_check ], [ false, %catch_landing ]
+  br i1 %val, label %if.then, label %if.else
+if.then:                                          ; preds = %phi_try_catch
+  %2 = load i32, ptr %a, align 4
+  %sub = sub i32 %2, 1
+  store i32 %sub, ptr %a, align 4
+  br label %if.exit
+if.else:                                          ; preds = %phi_try_catch
+  %3 = load i32, ptr %a, align 4
+  %add = add i32 %3, 1
+  store i32 %add, ptr %a, align 4
+  br label %if.exit
+if.exit:                                          ; preds = %if.else, %if.then
+  ret void
+}
diff --git a/test/test_suite7/errors/try_unwrap_using_assert.c3 b/test/test_suite7/errors/try_unwrap_using_assert.c3
new file mode 100644
index 000000000..3d6738861
--- /dev/null
+++ b/test/test_suite7/errors/try_unwrap_using_assert.c3
@@ -0,0 +1,11 @@
+module test;
+
+extern fn int! maybe();
+
+fn int tester(int n)
+{
+    int! num = maybe();
+    assert(try num, "Hello"); // #error: An expression was expected
+    int x = num;
+    return num;
+}
diff --git a/test/test_suite7/errors/try_with_assign_to_failable.c3 b/test/test_suite7/errors/try_with_assign_to_failable.c3
new file mode 100644
index 000000000..57c054fcd
--- /dev/null
+++ b/test/test_suite7/errors/try_with_assign_to_failable.c3
@@ -0,0 +1,6 @@
+fn void test()
+{
+    int! z;
+    int! w;
+    try w = z; // #error: can only be used when unwrapping an optional
+}
diff --git a/test/test_suite7/errors/try_with_chained_unwrap.c3t b/test/test_suite7/errors/try_with_chained_unwrap.c3t
new file mode 100644
index 000000000..5a34b82b8
--- /dev/null
+++ b/test/test_suite7/errors/try_with_chained_unwrap.c3t
@@ -0,0 +1,59 @@
+// #target: macos-x64
+
+extern fn char*! readLine();
+extern fn int! atoi(char*);
+
+extern fn int printf(char* fmt, ...);
+
+fn void main()
+{
+    if (try val = atoi(readLine()))
+    {
+            printf("You typed the number %d\n", val);
+            return;
+    }
+    printf("You didn't type an integer :(\n");
+}
+
+/* #expect: try_with_chained_unwrap.ll
+
+
+define void @try_with_chained_unwrap.main() #0 {
+entry:
+  %val = alloca i32, align 4
+  %retparam = alloca ptr, align 8
+  %retparam1 = alloca i32, align 4
+  store i32 0, ptr %val, align 4
+  %0 = call i64 @readLine(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %catch_landing
+
+after_check:                                      ; preds = %entry
+  %2 = load ptr, ptr %retparam, align 8
+  %3 = call i64 @atoi(ptr %retparam1, ptr %2)
+  %not_err2 = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %4, label %after_check3, label %catch_landing
+
+after_check3:                                     ; preds = %after_check
+  %5 = load i32, ptr %retparam1, align 4
+  store i32 %5, ptr %val, align 4
+  br label %phi_try_catch
+
+catch_landing:                                    ; preds = %after_check, %entry
+  br label %phi_try_catch
+
+phi_try_catch:                                    ; preds = %catch_landing, %after_check3
+  %val4 = phi i1 [ true, %after_check3 ], [ false, %catch_landing ]
+  br i1 %val4, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %phi_try_catch
+  %6 = load i32, ptr %val, align 4
+  %7 = call i32 (ptr, ...) @printf(ptr @.str, i32 %6)
+  ret void
+
+if.exit:                                          ; preds = %phi_try_catch
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/try_with_chained_unwrap_errors.c3 b/test/test_suite7/errors/try_with_chained_unwrap_errors.c3
new file mode 100644
index 000000000..29b71f47d
--- /dev/null
+++ b/test/test_suite7/errors/try_with_chained_unwrap_errors.c3
@@ -0,0 +1,91 @@
+fn void test()
+{
+    int! a;
+    int b;
+    if (try int b = a) {} // #error: 'b' would shadow a previous declaration.
+}
+fn void test2()
+{
+    int! a;
+    if (try b = a) {}
+    if (try test2 = a) {}
+}
+
+const int BAZ = 1;
+
+fn void test3()
+{
+
+    int! a;
+    int b;
+    if (try BAZ = a) {} // #error: lower case
+}
+
+
+fn void test4()
+{
+
+    int! a;
+    if (try b = 1) {} // #error: remove 'try'
+}
+
+fn void test5()
+{
+
+    int! a;
+    int b;
+    if (try a = a) {} // #error: if (try a)
+}
+
+fn void test6()
+{
+
+    int! a;
+    int b;
+    int*! x;
+    if (try *x = a) {} // #error: variable name
+}
+
+
+fn void test7()
+{
+    int! a;
+    int b;
+    int*! x;
+    if (try foo::z = a) {} // #error: The variable may not have a path.
+}
+
+fn void test8()
+{
+    int! a;
+    int e;
+    if (e == 0, try c = a && try d = a && e > 0) {}
+    if (try b = a && try c = a && e > 0) {}
+    if (try c = a && try d = a) { c++; }
+}
+
+fn void test9()
+{
+    int! a = 11;
+    if (try z = a)
+    {
+        int g = z++;
+    }
+    else
+    {
+        z++; // #error: 'z' could not be found, did you spell it right?
+    }
+}
+
+fn void test10()
+{
+    int! a = 11;
+    if (try a)
+    {
+        int g = a;
+    }
+    else
+    {
+        int g = a; // #error: 'int!' to 'int'
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/try_with_unwrap.c3t b/test/test_suite7/errors/try_with_unwrap.c3t
new file mode 100644
index 000000000..46379c269
--- /dev/null
+++ b/test/test_suite7/errors/try_with_unwrap.c3t
@@ -0,0 +1,86 @@
+// #target: macos-x64
+extern fn char*! readLine();
+extern fn int! atoi(char*);
+
+extern fn int printf(char* fmt, ...);
+
+fn void main()
+{
+    char*! line = readLine();
+    if (try line)
+    {
+        int! val = atoi(line);
+        if (try val)
+        {
+            printf("You typed the number %d\n", val);
+            return;
+        }
+    }
+    printf("You didn't type an integer :(\n");
+}
+
+/* #expect: try_with_unwrap.ll
+
+define void @try_with_unwrap.main() #0 {
+entry:
+  %line = alloca ptr, align 8
+  %line.f = alloca i64, align 8
+  %retparam = alloca ptr, align 8
+  %val = alloca i32, align 4
+  %val.f = alloca i64, align 8
+  %retparam1 = alloca i32, align 4
+  %0 = call i64 @readLine(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %0, ptr %line.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %entry
+  %2 = load ptr, ptr %retparam, align 8
+  store ptr %2, ptr %line, align 8
+  store i64 0, ptr %line.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check, %assign_optional
+  %load.err = load i64, ptr %line.f, align 8
+  %result = icmp eq i64 %load.err, 0
+  br i1 %result, label %if.then, label %if.exit9
+
+if.then:                                          ; preds = %after_assign
+  %3 = load ptr, ptr %line, align 8
+  %4 = call i64 @atoi(ptr %retparam1, ptr %3)
+  %not_err2 = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %5, label %after_check4, label %assign_optional3
+
+assign_optional3:                                 ; preds = %if.then
+  store i64 %4, ptr %val.f, align 8
+  br label %after_assign5
+
+after_check4:                                     ; preds = %if.then
+  %6 = load i32, ptr %retparam1, align 4
+  store i32 %6, ptr %val, align 4
+  store i64 0, ptr %val.f, align 8
+  br label %after_assign5
+
+after_assign5:                                    ; preds = %after_check4, %assign_optional3
+  %load.err6 = load i64, ptr %val.f, align 8
+  %result7 = icmp eq i64 %load.err6, 0
+  br i1 %result7, label %if.then8, label %if.exit
+
+if.then8:                                         ; preds = %after_assign5
+  %7 = load i32, ptr %val, align 4
+  %8 = call i32 (ptr, ...) @printf(ptr @.str, i32 %7)
+  ret void
+
+if.exit:                                          ; preds = %after_assign5
+  br label %if.exit9
+
+if.exit9:                                         ; preds = %if.exit, %after_assign
+  %9 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  ret void
+}
+
diff --git a/test/test_suite7/errors/try_with_unwrapper.c3t b/test/test_suite7/errors/try_with_unwrapper.c3t
new file mode 100644
index 000000000..bdc5f79da
--- /dev/null
+++ b/test/test_suite7/errors/try_with_unwrapper.c3t
@@ -0,0 +1,185 @@
+// #target: macos-x64
+
+fn int hello(int x)
+{
+    return x + 1;
+}
+
+extern fn int printf(char *c, ...);
+
+fn int! tester()
+{
+    printf("In tester\n");
+    return 222;
+}
+
+fault Foo
+{
+    A
+}
+fn void test1()
+{
+    int! a = 11;
+    if (try int b = a && try int c = tester())
+    {
+        printf("%d\n", hello(b));
+        printf("%d\n", c);
+    }
+}
+fn void main()
+{
+    test1();
+}
+
+fn void test2()
+{
+    int! a;
+    if (try int b = a && hello(b))
+    {
+        hello(b + 1);
+    }
+}
+
+/* #expect: try_with_unwrapper.ll
+
+
+define i32 @try_with_unwrapper.hello(i32 %0) #0 {
+entry:
+  %add = add i32 %0, 1
+  ret i32 %add
+}
+
+
+declare i32 @printf(ptr, ...) #0
+
+
+define i64 @try_with_unwrapper.tester(ptr %0) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %1 = call i32 (ptr, ...) @printf(ptr @.str)
+  store i32 222, ptr %0, align 4
+  ret i64 0
+}
+
+
+define void @try_with_unwrapper.test1() #0 {
+entry:
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %b = alloca i32, align 4
+  %c = alloca i32, align 4
+  %retparam = alloca i32, align 4
+  store i32 11, ptr %a, align 4
+  store i64 0, ptr %a.f, align 8
+  store i32 0, ptr %b, align 4
+  %optval = load i64, ptr %a.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %catch_landing
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %a, align 4
+  store i32 %1, ptr %b, align 4
+  br label %phi_try_catch
+
+catch_landing:                                    ; preds = %entry
+  br label %phi_try_catch
+
+phi_try_catch:                                    ; preds = %catch_landing, %after_check
+  %val = phi i1 [ true, %after_check ], [ false, %catch_landing ]
+  br i1 %val, label %chain_next, label %fail_chain
+
+chain_next:                                       ; preds = %phi_try_catch
+  store i32 0, ptr %c, align 4
+  %2 = call i64 @try_with_unwrapper.tester(ptr %retparam)
+  %not_err1 = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err1, i1 true)
+  br i1 %3, label %after_check2, label %catch_landing3
+
+after_check2:                                     ; preds = %chain_next
+  %4 = load i32, ptr %retparam, align 4
+  store i32 %4, ptr %c, align 4
+  br label %phi_try_catch4
+
+catch_landing3:                                   ; preds = %chain_next
+  br label %phi_try_catch4
+
+phi_try_catch4:                                   ; preds = %catch_landing3, %after_check2
+  %val5 = phi i1 [ true, %after_check2 ], [ false, %catch_landing3 ]
+  br i1 %val5, label %chain_next6, label %fail_chain
+
+chain_next6:                                      ; preds = %phi_try_catch4
+  br label %end_chain
+
+fail_chain:                                       ; preds = %phi_try_catch4, %phi_try_catch
+  br label %end_chain
+
+end_chain:                                        ; preds = %fail_chain, %chain_next6
+  %chain.phi = phi i1 [ true, %chain_next6 ], [ false, %fail_chain ]
+  br i1 %chain.phi, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_chain
+  %5 = load i32, ptr %b, align 4
+  %6 = call i32 @try_with_unwrapper.hello(i32 %5)
+  %7 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %6)
+  %8 = load i32, ptr %c, align 4
+  %9 = call i32 (ptr, ...) @printf(ptr @.str.2, i32 %8)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %end_chain
+  ret void
+}
+
+
+
+define void @try_with_unwrapper.test2() #0 {
+entry:
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %b = alloca i32, align 4
+  store i64 0, ptr %a.f, align 8
+  store i32 0, ptr %a, align 4
+  store i32 0, ptr %b, align 4
+  %optval = load i64, ptr %a.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %catch_landing
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %a, align 4
+  store i32 %1, ptr %b, align 4
+  br label %phi_try_catch
+
+catch_landing:                                    ; preds = %entry
+  br label %phi_try_catch
+
+phi_try_catch:                                    ; preds = %catch_landing, %after_check
+  %val = phi i1 [ true, %after_check ], [ false, %catch_landing ]
+  br i1 %val, label %chain_next, label %fail_chain
+
+chain_next:                                       ; preds = %phi_try_catch
+  %2 = load i32, ptr %b, align 4
+  %3 = call i32 @try_with_unwrapper.hello(i32 %2)
+  %i2b = icmp ne i32 %3, 0
+  br i1 %i2b, label %chain_next1, label %fail_chain
+
+chain_next1:                                      ; preds = %chain_next
+  br label %end_chain
+
+fail_chain:                                       ; preds = %chain_next, %phi_try_catch
+  br label %end_chain
+
+end_chain:                                        ; preds = %fail_chain, %chain_next1
+  %chain.phi = phi i1 [ true, %chain_next1 ], [ false, %fail_chain ]
+  br i1 %chain.phi, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_chain
+  %4 = load i32, ptr %b, align 4
+  %add = add i32 %4, 1
+  %5 = call i32 @try_with_unwrapper.hello(i32 %add)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %end_chain
+  ret void
+}
+
diff --git a/test/test_suite7/errors/try_with_weird_stuff.c3 b/test/test_suite7/errors/try_with_weird_stuff.c3
new file mode 100644
index 000000000..2cf0bdf0f
--- /dev/null
+++ b/test/test_suite7/errors/try_with_weird_stuff.c3
@@ -0,0 +1,16 @@
+fn void test1()
+{
+
+    int! a;
+    int b;
+    int*! x;
+    if (try int 1 = a) {} // #error: A new variable was expected.
+}
+
+fn void test2()
+{
+    int! a;
+    int b;
+    int*! x;
+    if (try foo::z = a, b += 1) {} // #error: The 'try' must be placed last, can you change it?
+}
\ No newline at end of file
diff --git a/test/test_suite7/errors/type_optional_declaration_order.c3 b/test/test_suite7/errors/type_optional_declaration_order.c3
new file mode 100644
index 000000000..1ea98e202
--- /dev/null
+++ b/test/test_suite7/errors/type_optional_declaration_order.c3
@@ -0,0 +1,27 @@
+import std::io;
+
+fn void! test1()
+{
+	CallbackResult![] result = 123; // #error: Foo[]!
+}
+
+fn void! test2()
+{
+	CallbackResult![?] result = 123; // #error: Foo[?]!
+}
+
+fn void! test3()
+{
+	CallbackResult![4 + 5] result = 123; // #error: Foo[4]!
+}
+
+fn void! test4()
+{
+	CallbackResult![<?>] result = 123; // #error: Foo[<?>]!
+}
+
+fn void! test5()
+{
+	CallbackResult![<FOO>] result = 123; // #error: Foo[<4>]!
+}
+
diff --git a/test/test_suite7/examples/gameoflife.c3 b/test/test_suite7/examples/gameoflife.c3
new file mode 100644
index 000000000..623399150
--- /dev/null
+++ b/test/test_suite7/examples/gameoflife.c3
@@ -0,0 +1,90 @@
+module game_of_life;
+
+extern fn void printf(char *fmt, ...);
+extern fn int atoi(char *val);
+extern void *__stdoutp;
+extern fn void fflush(void *std);
+extern fn int rand();
+extern fn void* malloc(usz size);
+extern fn void usleep(int time);
+
+
+struct GameBoard
+{
+    int h;
+    int w;
+    char* world;
+    char* temp;
+}
+
+fn void GameBoard.show(GameBoard *board)
+{
+
+	printf("\e[H");
+	char* current = board.world;
+	for (int y = 0; y < board.h; y++)
+	{
+	    for (int x = 0; x < board.w; x++)
+	    {
+	        printf(*current ? "\e[07m  \e[m" : "  ");
+	        current++;
+	    }
+		printf("\e[E");
+	}
+	fflush(__stdoutp);
+}
+
+fn void GameBoard.evolve(GameBoard *board)
+{
+	for (int y = 0; y < board.h; y++)
+	{
+	    for (int x = 0; x < board.w; x++)
+	    {
+    		int n = 0;
+    		for (int y1 = y - 1; y1 <= y + 1; y1++)
+	    	{
+		        for (int x1 = x - 1; x1 <= x + 1; x1++)
+		        {
+		            int actualX = (x1 + board.w) % board.w;
+		            int actualY = (y1 + board.h) % board.h;
+		            if (board.world[actualX + actualY * board.w]) n++;
+		        }
+		    }
+		    if (board.world[x + y * board.w]) n--;
+            board.temp[x + y * board.w] = (char)(n == 3 || (n == 2 && board.world[x + y * board.w]));
+	    }
+	}
+	for (int i = 0; i < board.w * board.h; i++)
+	{
+	    board.world[i] = board.temp[i];
+	}
+}
+
+
+fn int main(int c, char** v)
+{
+	int w = 0;
+	int h = 0;
+	if (c > 1) w = atoi(v[1]);
+	if (c > 2) h = atoi(v[2]);
+	if (w <= 0) w = 30;
+	if (h <= 0) h = 30;
+
+    GameBoard board;
+    board.w = w;
+    board.h = h;
+    board.world = malloc((isz)h * w);
+    board.temp = malloc((isz)h * w);
+
+    for (int i = h * w - 1; i >= 0; i--)
+    {
+        board.world[i] = rand() % 10 == 0 ? 1 : 0;
+    }
+    for (int j = 0; j < 1000; j++)
+	{
+		board.show();
+		board.evolve();
+		usleep(200000);
+	}
+	return 1;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expression_block/expr_block_labelled_break.c3 b/test/test_suite7/expression_block/expr_block_labelled_break.c3
new file mode 100644
index 000000000..08c01fee4
--- /dev/null
+++ b/test/test_suite7/expression_block/expr_block_labelled_break.c3
@@ -0,0 +1,10 @@
+// #deprecation: no
+fn void test()
+{
+	for FOO: (int i = 0; i < 100; i++)
+	{
+		{|
+			if (i == 10) break FOO; // #error: You cannot break out of an expression block
+		|};
+	}
+}
\ No newline at end of file
diff --git a/test/test_suite7/expression_block/expr_block_no_assign.c3 b/test/test_suite7/expression_block/expr_block_no_assign.c3
new file mode 100644
index 000000000..98aaea52a
--- /dev/null
+++ b/test/test_suite7/expression_block/expr_block_no_assign.c3
@@ -0,0 +1,7 @@
+// #deprecation: no
+module helloworld;
+
+fn void main()
+{
+	{| return 1; |}; // #error: which must be handled
+}
\ No newline at end of file
diff --git a/test/test_suite7/expression_block/expression_block_break.c3 b/test/test_suite7/expression_block/expression_block_break.c3
new file mode 100644
index 000000000..0412bfc60
--- /dev/null
+++ b/test/test_suite7/expression_block/expression_block_break.c3
@@ -0,0 +1,12 @@
+// #deprecation: no
+module fe;
+import std::io;
+extern fn int printf(char *str, ...);
+
+fn int main()
+{
+    while(true)
+    {
+        return {| break; return 0; |}; // #error: There is no valid target for 'break', did you make a mistake
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/expression_block/expression_block_no_end_return.c3 b/test/test_suite7/expression_block/expression_block_no_end_return.c3
new file mode 100644
index 000000000..2a2905a40
--- /dev/null
+++ b/test/test_suite7/expression_block/expression_block_no_end_return.c3
@@ -0,0 +1,9 @@
+// #deprecation: no
+module foob;
+
+fn void main()
+{
+	{|
+		if (1) return 1; // #error: Expected a return statement following this statement
+	|};
+}
diff --git a/test/test_suite7/expressions/2002-02-13-ConditionalInCall.c3t b/test/test_suite7/expressions/2002-02-13-ConditionalInCall.c3t
new file mode 100644
index 000000000..ddb947ff9
--- /dev/null
+++ b/test/test_suite7/expressions/2002-02-13-ConditionalInCall.c3t
@@ -0,0 +1,16 @@
+// #target: macos-x64
+
+module test;
+
+extern fn void foo(int, double, float);
+
+fn void bar(int x)
+{
+  foo(x, x ? 1.0 : 12.5, 1.0);
+}
+
+/* #expect: test.ll
+
+  %i2b = icmp ne i32 %0, 0
+  %ternary = select i1 %i2b, double 1.000000e+00, double 1.250000e+01
+  call void @foo(i32 %0, double %ternary, float 1.000000e+00)
diff --git a/test/test_suite7/expressions/addr_compiles.c3t b/test/test_suite7/expressions/addr_compiles.c3t
new file mode 100644
index 000000000..db8049d92
--- /dev/null
+++ b/test/test_suite7/expressions/addr_compiles.c3t
@@ -0,0 +1,138 @@
+// #target: macos-x64
+
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    test();
+    test2();
+    test3();
+}
+
+fn void test()
+{
+    int f = 3;
+    int* x = &(((f)));
+    int* h = &&(f++);
+    printf("x = %d (4), h = %d (3)\n", *x, *h);
+}
+
+
+const int XX = 314;
+fn void test2()
+{
+    int* w = &XX;
+    printf("w = %d (314)\n", *w);
+}
+
+struct Foo
+{
+    int x;
+    int y;
+}
+fn void test3()
+{
+    Foo h = { 345, 555 };
+    int* zx = &h.x;
+    int* zy = &h.y;
+    int[3] arr = { 333, 444, 999 };
+    printf("zx = %d (345) zy = %d (555)\n", *zx, *zy);
+    arr[0]--;
+    arr[1]--;
+    arr[2]--;
+    int* d = &arr[2];
+    int[]* e = &&arr[1..2];
+    printf("d = %d (998) e = %d (443)\n", *d, (*e)[0]);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  call void @test.test()
+  call void @test.test2()
+  call void @test.test3()
+  ret void
+}
+
+; Function Attrs:
+define void @test.test() #0 {
+entry:
+  %f = alloca i32, align 4
+  %x = alloca ptr, align 8
+  %h = alloca ptr, align 8
+  %taddr = alloca i32, align 4
+  store i32 3, ptr %f, align 4
+  store ptr %f, ptr %x, align 8
+  %0 = load i32, ptr %f, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr %f, align 4
+  store i32 %0, ptr %taddr, align 4
+  store ptr %taddr, ptr %h, align 8
+  %1 = load ptr, ptr %x, align 8
+  %2 = load ptr, ptr %h, align 8
+  %3 = load i32, ptr %1, align 4
+  %4 = load i32, ptr %2, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %3, i32 %4)
+  ret void
+}
+
+; Function Attrs:
+define void @test.test2() #0 {
+entry:
+  %w = alloca ptr, align 8
+  store ptr @test.XX, ptr %w, align 8
+  %0 = load ptr, ptr %w, align 8
+  %1 = load i32, ptr %0, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %1)
+  ret void
+}
+
+; Function Attrs:
+define void @test.test3() #0 {
+entry:
+  %h = alloca %Foo, align 4
+  %zx = alloca ptr, align 8
+  %zy = alloca ptr, align 8
+  %arr = alloca [3 x i32], align 4
+  %d = alloca ptr, align 8
+  %e = alloca ptr, align 8
+  %taddr = alloca %"int[]", align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %h, ptr align 4 @.__const, i32 8, i1 false)
+  store ptr %h, ptr %zx, align 8
+  %ptradd = getelementptr inbounds i8, ptr %h, i64 4
+  store ptr %ptradd, ptr %zy, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %arr, ptr align 4 @.__const.2, i32 12, i1 false)
+  %0 = load ptr, ptr %zx, align 8
+  %1 = load ptr, ptr %zy, align 8
+  %2 = load i32, ptr %0, align 4
+  %3 = load i32, ptr %1, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %2, i32 %3)
+  %4 = load i32, ptr %arr, align 4
+  %sub = sub i32 %4, 1
+  store i32 %sub, ptr %arr, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %arr, i64 4
+  %5 = load i32, ptr %ptradd1, align 4
+  %sub2 = sub i32 %5, 1
+  store i32 %sub2, ptr %ptradd1, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %arr, i64 8
+  %6 = load i32, ptr %ptradd3, align 4
+  %sub4 = sub i32 %6, 1
+  store i32 %sub4, ptr %ptradd3, align 4
+  %ptradd5 = getelementptr inbounds i8, ptr %arr, i64 8
+  store ptr %ptradd5, ptr %d, align 8
+  %ptradd6 = getelementptr inbounds i8, ptr %arr, i64 4
+  %7 = insertvalue %"int[]" undef, ptr %ptradd6, 0
+  %8 = insertvalue %"int[]" %7, i64 2, 1
+  store %"int[]" %8, ptr %taddr, align 8
+  store ptr %taddr, ptr %e, align 8
+  %9 = load ptr, ptr %d, align 8
+  %10 = load ptr, ptr %e, align 8
+  %11 = load ptr, ptr %10, align 8
+  %12 = load i32, ptr %9, align 4
+  %13 = load i32, ptr %11, align 4
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %12, i32 %13)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/addr_of_fails.c3 b/test/test_suite7/expressions/addr_of_fails.c3
new file mode 100644
index 000000000..f8c1fcbb3
--- /dev/null
+++ b/test/test_suite7/expressions/addr_of_fails.c3
@@ -0,0 +1,78 @@
+fn void test()
+{
+    int f;
+    int* x = &(((f)));
+    int* h = &&(f++);
+    int* z = &(f++); // #error: To take the address of a temporary value, use '&&' instead of '&'
+}
+
+
+fn void test2()
+{
+    int f;
+    var $foo;
+    int* x = &$foo;    // #error: It's not possible to take the address of a compile time value
+}
+
+int he;
+macro int hello()
+{
+    return he;
+}
+
+fn void test3()
+{
+    int* x = &hello();    // #error: To take the address of a temporary value, use '&&' instead of '&'
+}
+
+fn void test3b()
+{
+    int* x = &hello;    // #error: It is not possible to take the address of a macro.
+}
+
+const X = 2;
+const int XX = 3;
+fn void test4()
+{
+    int* w = &XX;
+}
+
+fn void test5()
+{
+    int* z = &X;    // #error: The constant is not typed, either type it or use && to take the reference to a temporary.
+}
+
+struct Foo
+{
+    int x;
+    int y;
+}
+
+def heh = he;
+
+fn void test6()
+{
+    int* hee = &heh;
+    Foo h;
+    int* z = &h.x;
+    int[3] arr;
+    int* d = &arr[2];
+    int[]* e = &arr[1..2]; // #error: To take the address of a temporary value, use '&&' instead of '&'
+}
+
+def Baz = Foo;
+distinct Bar = int;
+fault Err { FOO }
+union Un { int x; }
+enum MyEnum { BAR }
+
+fn void test7()
+{
+    &Baz; // #error: It is not possible to take the address of a type.
+    &Bar; // #error: It is not possible to take the address of a type.
+    &Err; // #error: It is not possible to take the address of a type.
+    &Un; // #error: It is not possible to take the address of a type.
+    &Err.FOO; // #error: To take the address of a temporary value, use '&&' instead of '&'
+    &MyEnum; // #error: It is not possible to take the address of a type.
+    &MyEnum.BAR; // #error: To take the address of a temporary value, use '&&' instead of '&'
+}
diff --git a/test/test_suite7/expressions/arithmetics.c3 b/test/test_suite7/expressions/arithmetics.c3
new file mode 100644
index 000000000..3644ed17e
--- /dev/null
+++ b/test/test_suite7/expressions/arithmetics.c3
@@ -0,0 +1,40 @@
+module arithmetics;
+
+fn void testAdd(int a, int b)
+{
+    a = a + b;
+    a += b;
+    a += 1;
+}
+
+fn void testSub(int a, int b)
+{
+    a = a - b;
+    a -= b;
+    a -= 1;
+}
+
+fn void testMult(int a, int b)
+{
+    a = a * b;
+    a *= b;
+    a *= 1;
+}
+
+fn void testDiv(int a, int b)
+{
+    a = a / b;
+    a /= b;
+    a /= 1;
+}
+
+fn void testAssignment()
+{
+    ichar x = -3 - 5;
+    ichar c = -128;
+}
+
+fn char test22()
+{
+    return 100;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/arithmetics_sema_fail.c3 b/test/test_suite7/expressions/arithmetics_sema_fail.c3
new file mode 100644
index 000000000..5612ed71e
--- /dev/null
+++ b/test/test_suite7/expressions/arithmetics_sema_fail.c3
@@ -0,0 +1,91 @@
+
+fn void test7()
+{
+    double x = 1.2 / 0; // This is ok! NaN
+}
+
+fn void test8()
+{
+    int y = 0 / 0; // #error: division by zero is not allowed
+}
+
+fn void test9()
+{
+    int y = 0;
+    int x = y / 0; // #error: division by zero is not allowed
+}
+
+fn void test10()
+{
+    10 = 20;        // #error: to a constant expression
+}
+
+fn void test11()
+{
+    '10' = '20';        // #error: to a constant expression
+}
+
+fn void test12()
+{
+    true = false;        // #error: to a constant expression
+}
+
+fn void test13()
+{
+    "a" = "b";        // #error: to a constant expression
+}
+
+fn void test14()
+{
+    1.2 = 1.3;        // #error: to a constant expression
+}
+
+fn void test15()
+{
+    null = null;      // #error: to a constant expression
+}
+
+fn void test16()
+{
+    int a = 0;
+    uint b = 2;
+    ushort c = 3;
+    a = a + c;
+    int g = a + b;
+}
+
+fn void test17()
+{
+    char a = 100 + 300; // #error: '400' is out of range for 'char'
+}
+
+fn void test18()
+{
+    char b = 100 + 156; // #error: '256' is out of range for 'char'
+}
+
+fn void test19()
+{
+    ichar b = (-40) - 126; // #error: '-166' is out of range for 'ichar'
+}
+
+
+
+fn void test20()
+{
+    ichar d = ((-128 - 10) + 10) - 2; // #error: '-130' is out of range for 'ichar'
+    ichar c = 100 * 100; // #error: '10000' is out of range for 'ichar'
+    ichar e = (-138 + 30);
+    ichar f = -138 + 30;
+    ichar g = -(128);
+    check(128); // #error: '128' is out of range for 'ichar'
+}
+
+fn void check(ichar x) {}
+
+
+fn char test22()
+{
+    return 300;     // #error: '300' is out of range for 'char'
+}
+
diff --git a/test/test_suite7/expressions/assign.c3 b/test/test_suite7/expressions/assign.c3
new file mode 100644
index 000000000..046ae8a8d
--- /dev/null
+++ b/test/test_suite7/expressions/assign.c3
@@ -0,0 +1,5 @@
+fn void test1()
+{
+    int* p;
+    *p = 10;
+}
diff --git a/test/test_suite7/expressions/assign_deref_opt.c3 b/test/test_suite7/expressions/assign_deref_opt.c3
new file mode 100644
index 000000000..5f4584533
--- /dev/null
+++ b/test/test_suite7/expressions/assign_deref_opt.c3
@@ -0,0 +1,9 @@
+module test;
+
+fn void main()
+{
+	int! a;
+	int*! b;
+	*b = a; // #error: You cannot assign to a dereferenced optional
+}
+
diff --git a/test/test_suite7/expressions/assign_optional.c3t b/test/test_suite7/expressions/assign_optional.c3t
new file mode 100644
index 000000000..d61fcf34d
--- /dev/null
+++ b/test/test_suite7/expressions/assign_optional.c3t
@@ -0,0 +1,69 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+	anyfault x = SearchResult.MISSING;
+	int! a = x?;
+	int! b = a = x?;
+	int! c = b = a;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %x = alloca i64, align 8
+  %a = alloca i32, align 4
+  %a.f = alloca i64, align 8
+  %b = alloca i32, align 4
+  %b.f = alloca i64, align 8
+  %c = alloca i32, align 4
+  %c.f = alloca i64, align 8
+  store i64 ptrtoint (ptr @"std.core.builtin.SearchResult$MISSING" to i64), ptr %x, align 8
+  %0 = load i64, ptr %x, align 8
+  store i64 %0, ptr %a.f, align 8
+  %1 = load i64, ptr %x, align 8
+  store i64 %1, ptr %a.f, align 8
+  %not_err = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %1, ptr %b.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %entry
+  store i32 undef, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check, %assign_optional
+  %optval = load i64, ptr %a.f, align 8
+  %not_err1 = icmp eq i64 %optval, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err1, i1 true)
+  br i1 %3, label %after_check3, label %assign_optional2
+
+assign_optional2:                                 ; preds = %after_assign
+  store i64 %optval, ptr %b.f, align 8
+  br label %optional_assign_jump
+
+after_check3:                                     ; preds = %after_assign
+  %4 = load i32, ptr %a, align 4
+  store i32 %4, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  br label %after_assign4
+
+optional_assign_jump:                             ; preds = %assign_optional2
+  %reload_err = load i64, ptr %b.f, align 8
+  store i64 %reload_err, ptr %c.f, align 8
+  br label %after_assign5
+
+after_assign4:                                    ; preds = %after_check3
+  store i32 %4, ptr %c, align 4
+  store i64 0, ptr %c.f, align 8
+  br label %after_assign5
+
+after_assign5:                                    ; preds = %after_assign4, %optional_assign_jump
+  ret void
+}
diff --git a/test/test_suite7/expressions/assign_to_address.c3 b/test/test_suite7/expressions/assign_to_address.c3
new file mode 100644
index 000000000..77150c3a2
--- /dev/null
+++ b/test/test_suite7/expressions/assign_to_address.c3
@@ -0,0 +1,7 @@
+// Issue #1833
+fn int main()
+{
+    int* i;
+    &i[0] = null; // #error: An assignable expression
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/assignability.c3 b/test/test_suite7/expressions/assignability.c3
new file mode 100644
index 000000000..4f8825393
--- /dev/null
+++ b/test/test_suite7/expressions/assignability.c3
@@ -0,0 +1,39 @@
+def Number = int;
+
+fn void test1()
+{
+    10 = 20;        // #error: to a constant expression
+}
+
+fn void test2()
+{
+    "foo" = "bar";  // #error: to a constant expression
+}
+
+fn void test3()
+{
+    true = false;   // #error: to a constant expression
+}
+
+fn void test4()
+{
+    'c' = 'd';      // #error: to a constant expression
+}
+
+fn void test5()
+{
+    3.14 = 2.14;    // #error: to a constant expression
+}
+
+fn void test21()
+{
+    int a = 0;
+    int b = 2;
+    a++ = b++;      // #error: An assignable expression
+}
+
+fn void test22()
+{
+    var $Type = void;
+    $Type = int;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/assignment_precedence.c3t b/test/test_suite7/expressions/assignment_precedence.c3t
new file mode 100644
index 000000000..e484d1a88
--- /dev/null
+++ b/test/test_suite7/expressions/assignment_precedence.c3t
@@ -0,0 +1,23 @@
+module prec;
+
+fn void test()
+{
+    int i = 1;
+    int j = 2;
+    int k = 3;
+    int l = i = j = k;
+}
+
+/* #expect: prec.ll
+
+  %i = alloca i32, align 4
+  %j = alloca i32, align 4
+  %k = alloca i32, align 4
+  %l = alloca i32, align 4
+  store i32 1, ptr %i, align 4
+  store i32 2, ptr %j, align 4
+  store i32 3, ptr %k, align 4
+  %0 = load i32, ptr %k, align 4
+  store i32 %0, ptr %j, align 4
+  store i32 %0, ptr %i, align 4
+  store i32 %0, ptr %l, align 4
\ No newline at end of file
diff --git a/test/test_suite7/expressions/bit_op_on_bool.c3t b/test/test_suite7/expressions/bit_op_on_bool.c3t
new file mode 100644
index 000000000..cd084d32c
--- /dev/null
+++ b/test/test_suite7/expressions/bit_op_on_bool.c3t
@@ -0,0 +1,14 @@
+// #target: macos-x64
+module bitop;
+
+fn bool is_newline_codepoint(uint codepoint) {
+    return (bool)((codepoint == 0x00_00_24_24) | (codepoint == 0x00_00_2B_92));
+}
+
+/* #expect: bitop.ll
+
+  %eq = icmp eq i32 %0, 9252
+  %eq1 = icmp eq i32 %0, 11154
+  %or = or i1 %eq, %eq1
+  %1 = zext i1 %or to i8
+  ret i8 %1
diff --git a/test/test_suite7/expressions/bool_conversions.c3t b/test/test_suite7/expressions/bool_conversions.c3t
new file mode 100644
index 000000000..972be92db
--- /dev/null
+++ b/test/test_suite7/expressions/bool_conversions.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+// #deprecation: no
+
+fn bool f0_0(void* a0) @private {  return (bool)a0; }
+
+fn int f0() { return (int)f0_0((void*)0x2); }
+
+def Test = fn void();
+
+fn bool f1() { return (bool){| Test x @noinit; return x = (Test)0; |}; }
+
+/* #expect: bool_conversions.ll
+
+define internal zeroext i8 @bool_conversions.f0_0(ptr %0) #0 {
+entry:
+  %i2b = icmp ne ptr %0, null
+  %1 = zext i1 %i2b to i8
+  ret i8 %1
+}
+
+define i32 @bool_conversions.f0() #0 {
+entry:
+  %0 = call i8 @bool_conversions.f0_0(ptr inttoptr (i64 2 to ptr))
+  %1 = trunc i8 %0 to i1
+  %zext = zext i1 %1 to i32
+  ret i32 %zext
+}
+
+define zeroext i8 @bool_conversions.f1() #0 {
+entry:
+  %x = alloca ptr, align 8
+  store ptr null, ptr %x, align 8
+  ret i8 0
+}
diff --git a/test/test_suite7/expressions/call_arg_types.c3 b/test/test_suite7/expressions/call_arg_types.c3
new file mode 100644
index 000000000..405b175be
--- /dev/null
+++ b/test/test_suite7/expressions/call_arg_types.c3
@@ -0,0 +1,19 @@
+fn void test2(ichar a)
+{}
+
+fn void test1()
+{
+    test2(100);
+    ichar c = 1;
+    test2(c);
+
+    int a = 1;
+    test2(a);           // #error: 'ichar'
+    test2(100 + a);     // #error: 'ichar'
+
+    const int X = 120;
+    test2(X);
+
+    test2(100 + 100);   // #error: '200' is out of range for 'ichar'
+}
+
diff --git a/test/test_suite7/expressions/call_inline.c3t b/test/test_suite7/expressions/call_inline.c3t
new file mode 100644
index 000000000..4a2311bee
--- /dev/null
+++ b/test/test_suite7/expressions/call_inline.c3t
@@ -0,0 +1,48 @@
+// #target: macos-x64
+module inlineme;
+import std::io;
+
+fn void test1() @inline
+{
+    io::printn("Inline!");
+}
+
+fn void test2() @noinline
+{
+    io::printn("No inline!");
+}
+
+fn void test3()
+{
+    io::printn("Plain");
+}
+
+fn void main()
+{
+    test1() @inline;
+    test2() @inline;
+    test3() @inline;
+    test1() @noinline;
+    test2() @noinline;
+    test3() @noinline;
+    test1();
+    test2();
+    test3();
+}
+/* #expect: inlineme.ll
+
+entry:
+  call void @inlineme.test1() #3
+  call void @inlineme.test2() #3
+  call void @inlineme.test3() #3
+  call void @inlineme.test1() #4
+  call void @inlineme.test2() #4
+  call void @inlineme.test3() #4
+  call void @inlineme.test1() #3
+  call void @inlineme.test2()
+  call void @inlineme.test3()
+  ret void
+}
+
+attributes #3 = { alwaysinline }
+attributes #4 = { noinline }
diff --git a/test/test_suite7/expressions/casts/cast_const.c3 b/test/test_suite7/expressions/casts/cast_const.c3
new file mode 100644
index 000000000..1e9f68455
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_const.c3
@@ -0,0 +1,6 @@
+fn void test1()
+{
+    ichar  a = (ichar)(256 + 1);
+    ushort b = (ushort)(65536+1);
+    ichar c = (ushort)(65536+400);  // #error: truncate the value
+}
diff --git a/test/test_suite7/expressions/casts/cast_enum_const_to_distinct.c3 b/test/test_suite7/expressions/casts/cast_enum_const_to_distinct.c3
new file mode 100644
index 000000000..3d2b4fd8a
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_enum_const_to_distinct.c3
@@ -0,0 +1,9 @@
+enum Foo
+{
+	ABC
+}
+distinct Abc = int;
+fn void main()
+{
+	Abc d = Foo.ABC; // #error: to 'Abc'
+}
diff --git a/test/test_suite7/expressions/casts/cast_enum_to_various.c3 b/test/test_suite7/expressions/casts/cast_enum_to_various.c3
new file mode 100644
index 000000000..0a75c1eb2
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_enum_to_various.c3
@@ -0,0 +1,37 @@
+struct Struct
+{
+    int x;
+}
+
+enum Enum : uint
+{
+    A, B
+}
+
+enum EnumB : char
+{
+    C, D
+}
+
+def Func = fn void(Enum);
+
+fn void test1(Enum e)
+{
+    bool a = (bool)e; // #error: bool
+    char b = (char)e.ordinal;
+    uint c = (uint)e.ordinal;
+    float d = (float)e; // #error: float
+    uint* f = (uint*)e;         // #error: 'uint*'
+}
+
+fn void test2(Enum e)
+{
+    Struct* g = (Struct*)(e);     // #error: 'Struct*'
+}
+
+fn void test3(Enum e)
+{
+    EnumB h = (EnumB)(e);         // #error: 'EnumB'
+    Func i = (Func)(e);           // #error: 'Func'
+}
+
diff --git a/test/test_suite7/expressions/casts/cast_expr.c3t b/test/test_suite7/expressions/casts/cast_expr.c3t
new file mode 100644
index 000000000..c888e320c
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_expr.c3t
@@ -0,0 +1,28 @@
+// #target: macos-x64
+module cast_expr;
+
+fn int main(int argc, char** argv)
+{
+    int a = 10;
+
+    int b = (ichar)(20);
+    int c = (ichar)(a);
+    return 0;
+}
+
+/* #expect: cast_expr.ll
+
+define i32 @main
+
+    %a = alloca i32
+    %b = alloca i32
+    %c = alloca i32
+
+    store i32 10, ptr %a
+    store i32 20, ptr %b
+    %2 = load i32, ptr %a
+    trunc i32 %2 to i8
+    sext i8 %trunc to i32
+    store i32 %sext, ptr %c
+    ret i32 0
+}
diff --git a/test/test_suite7/expressions/casts/cast_failable.c3 b/test/test_suite7/expressions/casts/cast_failable.c3
new file mode 100644
index 000000000..fdfaa6954
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_failable.c3
@@ -0,0 +1,10 @@
+fault MyErr
+{
+    FOO
+}
+
+fn void test()
+{
+    int! x = (int!)(MyErr.FOO?); // #error: Casting to an optional type is not
+    int! y = MyErr.FOO?;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/casts/cast_func_to_various.c3 b/test/test_suite7/expressions/casts/cast_func_to_various.c3
new file mode 100644
index 000000000..3c3989eb6
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_func_to_various.c3
@@ -0,0 +1,45 @@
+struct Struct
+{
+    int x;
+}
+
+enum Enum : uptr
+{
+    A, B
+}
+
+def Func = fn void(int);
+def FuncOther = fn bool(char*);
+def FuncSame = fn void(int);
+
+
+fn void test1(Func arg)
+{
+    bool a = (bool)(arg);
+    bool b = arg;                          // #error: to 'bool'
+}
+
+fn void test2(Func arg)
+{
+    ichar b = (ichar)(arg);               // #error: 'Func' (fn void(int)) to 'ichar'
+}
+
+fn void test3(Func arg)
+{
+    uint c = (uint)(arg);                 // #error: 'Func' (fn void(int)) to 'uint'
+}
+
+fn void test4(Func arg)
+{
+    float d = (float)(arg);               // #error: 'Func' (fn void(int)) to 'float'
+}
+
+fn void test7(Func arg)
+{
+    usz g = (usz)(arg);
+    FuncOther k = (FuncOther)(arg);
+    FuncSame l = (FuncSame)(arg);
+    FuncOther ke = arg;                         // #error: 'Func' (fn void(int)) to 'FuncOther' (fn bool(char*))
+    FuncSame fe = arg;
+    Enum j = (Enum)(arg);                 // #error: 'Func' (fn void(int)) to 'Enum'
+}
diff --git a/test/test_suite7/expressions/casts/cast_implicit_inline_distinct.c3 b/test/test_suite7/expressions/casts/cast_implicit_inline_distinct.c3
new file mode 100644
index 000000000..7dce84d2b
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_implicit_inline_distinct.c3
@@ -0,0 +1,9 @@
+distinct DistinctInt = inline int;
+distinct DistinctInt2 = inline DistinctInt;
+
+fn void test()
+{
+	DistinctInt2 y;
+	DistinctInt x = y;
+	DistinctInt2 z = x; // #error: Implicitly casting
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/casts/cast_to_nonscalar.c3 b/test/test_suite7/expressions/casts/cast_to_nonscalar.c3
new file mode 100644
index 000000000..6a43d7a4c
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_to_nonscalar.c3
@@ -0,0 +1,9 @@
+struct Struct
+{
+    int x;
+}
+
+fn void test1()
+{
+    int a = (Struct)(200);    // #error: 'int' to 'Struct'
+}
diff --git a/test/test_suite7/expressions/casts/cast_unknown.c3 b/test/test_suite7/expressions/casts/cast_unknown.c3
new file mode 100644
index 000000000..17ca4995b
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_unknown.c3
@@ -0,0 +1,21 @@
+def Number = int;
+
+fn void test1()
+{
+    int a = 10;
+
+    int b = (Number)(a);
+
+    int c = (Foo)(a);         // #error: 'Foo' could not be found
+}
+
+fn void test2()
+{
+    int d = (Number)(bar);;    // #error: 'bar' could not be found
+}
+
+fn void test3()
+{
+    int e = (Bar)( // #error: 'Bar' could not be found
+        faa);             // #error:  'faa' could not be found
+}
diff --git a/test/test_suite7/expressions/casts/cast_vector_fail.c3 b/test/test_suite7/expressions/casts/cast_vector_fail.c3
new file mode 100644
index 000000000..df92120ff
--- /dev/null
+++ b/test/test_suite7/expressions/casts/cast_vector_fail.c3
@@ -0,0 +1,17 @@
+module foo;
+import std;
+fn void test(float[<4>]* x)
+{}
+fn void test2(float[4]* x)
+{}
+
+fn int main(String[] args)
+{
+	float[4] a;
+	float[<4>] b;
+	test(&a); // #error: Implicitly casting
+	test(&b);
+	test2(&a);
+	test2(&b);
+	return 1;
+}
diff --git a/test/test_suite7/expressions/casts/enum_plus_minus.c3t b/test/test_suite7/expressions/casts/enum_plus_minus.c3t
new file mode 100644
index 000000000..1770a5cc0
--- /dev/null
+++ b/test/test_suite7/expressions/casts/enum_plus_minus.c3t
@@ -0,0 +1,72 @@
+// #target: macos-x64
+module test;
+import std;
+enum Foo : ichar
+{
+	ABC,
+	BCD,
+	BAR,
+	BAZ
+}
+
+fn void main()
+{
+	Foo x = 1 + Foo.ABC;
+	ichar i = 1;
+	assert(x == BCD);
+	x = i + Foo.ABC;
+	assert(x == BCD);
+	x++;
+	assert(x == BAR);
+	x = -1 + x;
+	assert(x == BCD);
+	x = -i + x;
+	assert(x == ABC);
+	x = -1 + Foo.BAR;
+	assert(x == BCD);
+}
+
+/* #expect: test.ll
+
+entry:
+  %x = alloca i8, align 1
+  %i = alloca i8, align 1
+  store i8 1, ptr %x, align 1
+  store i8 1, ptr %i, align 1
+  %0 = load i8, ptr %x, align 1
+  %eq = icmp eq i8 %0, 1
+  call void @llvm.assume(i1 %eq)
+  %1 = load i8, ptr %i, align 1
+  %add = add i8 %1, 0
+  store i8 %add, ptr %x, align 1
+  %2 = load i8, ptr %x, align 1
+  %eq1 = icmp eq i8 %2, 1
+  call void @llvm.assume(i1 %eq1)
+  %3 = load i8, ptr %x, align 1
+  %add2 = add i8 %3, 1
+  store i8 %add2, ptr %x, align 1
+  %4 = load i8, ptr %x, align 1
+  %eq3 = icmp eq i8 %4, 2
+  call void @llvm.assume(i1 %eq3)
+  %5 = load i8, ptr %x, align 1
+  %add4 = add i8 -1, %5
+  store i8 %add4, ptr %x, align 1
+  %6 = load i8, ptr %x, align 1
+  %eq5 = icmp eq i8 %6, 1
+  call void @llvm.assume(i1 %eq5)
+  %7 = load i8, ptr %i, align 1
+  %sext = sext i8 %7 to i32
+  %neg = sub i32 0, %sext
+  %trunc = trunc i32 %neg to i8
+  %8 = load i8, ptr %x, align 1
+  %add6 = add i8 %trunc, %8
+  store i8 %add6, ptr %x, align 1
+  %9 = load i8, ptr %x, align 1
+  %eq7 = icmp eq i8 %9, 0
+  call void @llvm.assume(i1 %eq7)
+  store i8 1, ptr %x, align 1
+  %10 = load i8, ptr %x, align 1
+  %eq8 = icmp eq i8 %10, 1
+  call void @llvm.assume(i1 %eq8)
+  ret void
+}
diff --git a/test/test_suite7/expressions/casts/explicit_cast.c3 b/test/test_suite7/expressions/casts/explicit_cast.c3
new file mode 100644
index 000000000..9839e33e6
--- /dev/null
+++ b/test/test_suite7/expressions/casts/explicit_cast.c3
@@ -0,0 +1,16 @@
+def Number8 = char;
+def Number32 = int;
+distinct DNumber32 = int;
+fn void test1()
+{
+    int a = (ichar)(10);
+    int b = (ichar)(200);
+    int c = (int)(200);
+    ichar d = (int)(200);     // #error: truncate the value
+}
+
+fn void test2()
+{
+    char e = (Number32)(200);
+    char f = (DNumber32)(200); // #error: DNumber32
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/casts/failed_distinct_float_conversions.c3 b/test/test_suite7/expressions/casts/failed_distinct_float_conversions.c3
new file mode 100644
index 000000000..ba1d99002
--- /dev/null
+++ b/test/test_suite7/expressions/casts/failed_distinct_float_conversions.c3
@@ -0,0 +1,9 @@
+distinct Foo = double;
+distinct Bar = void*;
+fn int main()
+{
+	float f = 1;
+	Foo foo = f; // #error: explicit cast
+	Bar bar = f; // #error: 'float' to 'Bar'
+	return 1;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/casts/narrowing.c3 b/test/test_suite7/expressions/casts/narrowing.c3
new file mode 100644
index 000000000..983d0af78
--- /dev/null
+++ b/test/test_suite7/expressions/casts/narrowing.c3
@@ -0,0 +1,7 @@
+fn int main()
+{
+    ushort x;
+    uint y;
+    ushort z = x + (ushort)(0x12);
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/casts/narrowing_through_casts.c3 b/test/test_suite7/expressions/casts/narrowing_through_casts.c3
new file mode 100644
index 000000000..9b4e3c6f7
--- /dev/null
+++ b/test/test_suite7/expressions/casts/narrowing_through_casts.c3
@@ -0,0 +1,9 @@
+fn void main()
+{
+	long x;
+
+	int i = (char)x; // Ok
+	char c;
+	short s1 = (long)c; // Ok
+	short s2 = (long)i; // #error: 'int' cannot implicitly be converted
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/casts/struct_cast_and_distinct.c3 b/test/test_suite7/expressions/casts/struct_cast_and_distinct.c3
new file mode 100644
index 000000000..a4864337c
--- /dev/null
+++ b/test/test_suite7/expressions/casts/struct_cast_and_distinct.c3
@@ -0,0 +1,32 @@
+module test;
+
+distinct Foo = int;
+
+fn void test1()
+{
+	int[2][?] x = { { 2, 3}, { 5, 6 }};
+	Foo[2][2] y = x; // #error: explicit cast
+}
+
+fn void test2()
+{
+	int[2][?] x = { { 2, 3}, { 5, 6 }};
+	Foo[2][2] y = (Foo[2][2])x;
+}
+
+
+fn void test3()
+{
+	int[2][?] x = { { 2, 3}, { 5, 6 }};
+	Foo[2][2]* y = &x; // #error: explicit cast
+}
+
+struct Bar { int x; }
+
+struct Baz { int x; }
+
+fn void test4()
+{
+	Baz[2][?] x = { { { 2 } , { 3 } }, {{5}, {6} }};
+	Bar[?][?] y = (Bar[2][2])x;
+}
diff --git a/test/test_suite7/expressions/casts/void_casting.c3t b/test/test_suite7/expressions/casts/void_casting.c3t
new file mode 100644
index 000000000..8cdcff296
--- /dev/null
+++ b/test/test_suite7/expressions/casts/void_casting.c3t
@@ -0,0 +1,62 @@
+// #target: macos-x64
+module test;
+
+fn void! foo()
+{}
+
+fault Abc { AAA }
+
+macro int! bar()
+{
+	return Abc.AAA?;
+}
+
+fn int! baz()
+{
+	return 2;
+}
+
+fn int main()
+{
+	int x;
+	int! y;
+	(void)x;
+	(void)y;
+	(void)foo();
+	(void)bar();
+	(void)(bar() + 1);
+	(void)baz();
+	(void)(baz() + 1);
+	return 1;
+}
+
+/* #expect: test.ll
+
+define i32 @main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %y.f = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %retparam2 = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  store i64 0, ptr %y.f, align 8
+  store i32 0, ptr %y, align 4
+  %optval = load i64, ptr %y.f, align 8
+  %0 = call i64 @test.foo()
+  br label %postfailed
+postfailed:                                       ; preds = %entry
+  br label %postfailed1
+postfailed1:                                      ; preds = %postfailed
+  %1 = call i64 @test.baz(ptr %retparam)
+  %2 = call i64 @test.baz(ptr %retparam2)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %voiderr
+after_check:                                      ; preds = %postfailed1
+  %4 = load i32, ptr %retparam2, align 4
+  %add = add i32 %4, 1
+  br label %voiderr
+voiderr:                                          ; preds = %after_check, %postfailed1
+  ret i32 1
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/chained_conditional.c3t b/test/test_suite7/expressions/chained_conditional.c3t
new file mode 100644
index 000000000..58ead758b
--- /dev/null
+++ b/test/test_suite7/expressions/chained_conditional.c3t
@@ -0,0 +1,70 @@
+// #target: macos-x64
+module chained;
+
+fn int foo()
+{
+    return 1;
+}
+
+fn void test()
+{
+    int x = foo();
+    int y = foo();
+    int z = foo();
+    if (x > 0 && y > 0 && z > 0)
+    {
+        foo();
+    }
+    else
+    {
+        x++;
+    }
+}
+
+/* #expect: chained.ll
+
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %z = alloca i32, align 4
+  %0 = call i32 @chained.foo()
+  store i32 %0, ptr %x, align 4
+  %1 = call i32 @chained.foo()
+  store i32 %1, ptr %y, align 4
+  %2 = call i32 @chained.foo()
+  store i32 %2, ptr %z, align 4
+  %3 = load i32, ptr %x, align 4
+  %gt = icmp sgt i32 %3, 0
+  br i1 %gt, label %and.rhs, label %and.phi
+
+and.rhs:
+  %4 = load i32, ptr %y, align 4
+  %gt1 = icmp sgt i32 %4, 0
+  br label %and.phi
+
+and.phi:
+  %val = phi i1 [ false, %entry ], [ %gt1, %and.rhs ]
+  br i1 %val, label %and.rhs2, label %and.phi4
+
+and.rhs2:
+  %5 = load i32, ptr %z, align 4
+  %gt3 = icmp sgt i32 %5, 0
+  br label %and.phi4
+
+and.phi4:
+  %val5 = phi i1 [ false, %and.phi ], [ %gt3, %and.rhs2 ]
+  br i1 %val5, label %if.then, label %if.else
+
+if.then:
+  %6 = call i32 @chained.foo()
+  br label %if.exit
+
+if.else:
+  %7 = load i32, ptr %x, align 4
+  %add = add i32 %7, 1
+  store i32 %add, ptr %x, align 4
+  br label %if.exit
+
+if.exit:
+  ret void
+}
diff --git a/test/test_suite7/expressions/chained_ternary.c3t b/test/test_suite7/expressions/chained_ternary.c3t
new file mode 100644
index 000000000..28bf22952
--- /dev/null
+++ b/test/test_suite7/expressions/chained_ternary.c3t
@@ -0,0 +1,220 @@
+// #target: macos-x64
+module test;
+
+fault Test { FOO, BAR }
+
+fn void test()
+{
+	void* a;
+	void* b;
+	void* c;
+	a = !a ? a : !a ? b : c;
+	void*! x;
+	void*! y = !a ? x : b;
+	y = !a ? b : x;
+	y = !a ? x : x;
+	y = !a ? x : Test.FOO?;
+	y = !a ? Test.FOO? : x;
+	y = !a ? Test.FOO? : Test.BAR?;
+}
+
+/* #expect: test.ll
+
+  %0 = load ptr, ptr %a, align 8
+  %i2nb = icmp eq ptr %0, null
+  br i1 %i2nb, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  %1 = load ptr, ptr %a, align 8
+  br label %cond.phi4
+
+cond.rhs:                                         ; preds = %entry
+  %2 = load ptr, ptr %a, align 8
+  %i2nb1 = icmp eq ptr %2, null
+  br i1 %i2nb1, label %cond.lhs2, label %cond.rhs3
+
+cond.lhs2:                                        ; preds = %cond.rhs
+  %3 = load ptr, ptr %b, align 8
+  br label %cond.phi
+
+cond.rhs3:                                        ; preds = %cond.rhs
+  %4 = load ptr, ptr %c, align 8
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs3, %cond.lhs2
+  %val = phi ptr [ %3, %cond.lhs2 ], [ %4, %cond.rhs3 ]
+  br label %cond.phi4
+
+cond.phi4:                                        ; preds = %cond.phi, %cond.lhs
+  %val5 = phi ptr [ %1, %cond.lhs ], [ %val, %cond.phi ]
+  store ptr %val5, ptr %a, align 8
+  store i64 0, ptr %x.f, align 8
+  store ptr null, ptr %x, align 8
+  %5 = load ptr, ptr %a, align 8
+  %i2nb6 = icmp eq ptr %5, null
+  br i1 %i2nb6, label %cond.lhs7, label %cond.rhs8
+
+cond.lhs7:                                        ; preds = %cond.phi4
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %6, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %cond.lhs7
+  store i64 %optval, ptr %y.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %cond.lhs7
+  %7 = load ptr, ptr %x, align 8
+  br label %cond.phi9
+
+cond.rhs8:                                        ; preds = %cond.phi4
+  %8 = load ptr, ptr %b, align 8
+  br label %cond.phi9
+
+cond.phi9:                                        ; preds = %cond.rhs8, %after_check
+  %val10 = phi ptr [ %7, %after_check ], [ %8, %cond.rhs8 ]
+  store ptr %val10, ptr %y, align 8
+  store i64 0, ptr %y.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %cond.phi9, %assign_optional
+  %9 = load ptr, ptr %a, align 8
+  %i2nb11 = icmp eq ptr %9, null
+  br i1 %i2nb11, label %cond.lhs12, label %cond.rhs13
+
+cond.lhs12:                                       ; preds = %after_assign
+  %10 = load ptr, ptr %b, align 8
+  br label %cond.phi18
+
+cond.rhs13:                                       ; preds = %after_assign
+  %optval14 = load i64, ptr %x.f, align 8
+  %not_err15 = icmp eq i64 %optval14, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err15, i1 true)
+  br i1 %11, label %after_check17, label %assign_optional16
+
+assign_optional16:                                ; preds = %cond.rhs13
+  store i64 %optval14, ptr %y.f, align 8
+  br label %after_assign20
+
+after_check17:                                    ; preds = %cond.rhs13
+  %12 = load ptr, ptr %x, align 8
+  br label %cond.phi18
+
+cond.phi18:                                       ; preds = %after_check17, %cond.lhs12
+  %val19 = phi ptr [ %10, %cond.lhs12 ], [ %12, %after_check17 ]
+  store ptr %val19, ptr %y, align 8
+  store i64 0, ptr %y.f, align 8
+  br label %after_assign20
+
+after_assign20:                                   ; preds = %cond.phi18, %assign_optional16
+  %13 = load ptr, ptr %a, align 8
+  %i2nb21 = icmp eq ptr %13, null
+  br i1 %i2nb21, label %cond.lhs22, label %cond.rhs27
+
+cond.lhs22:                                       ; preds = %after_assign20
+  %optval23 = load i64, ptr %x.f, align 8
+  %not_err24 = icmp eq i64 %optval23, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %14, label %after_check26, label %assign_optional25
+
+assign_optional25:                                ; preds = %cond.lhs22
+  store i64 %optval23, ptr %y.f, align 8
+  br label %after_assign34
+
+after_check26:                                    ; preds = %cond.lhs22
+  %15 = load ptr, ptr %x, align 8
+  br label %cond.phi32
+
+cond.rhs27:                                       ; preds = %after_assign20
+  %optval28 = load i64, ptr %x.f, align 8
+  %not_err29 = icmp eq i64 %optval28, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err29, i1 true)
+  br i1 %16, label %after_check31, label %assign_optional30
+
+assign_optional30:                                ; preds = %cond.rhs27
+  store i64 %optval28, ptr %y.f, align 8
+  br label %after_assign34
+
+after_check31:                                    ; preds = %cond.rhs27
+  %17 = load ptr, ptr %x, align 8
+  br label %cond.phi32
+
+cond.phi32:                                       ; preds = %after_check31, %after_check26
+  %val33 = phi ptr [ %15, %after_check26 ], [ %17, %after_check31 ]
+  store ptr %val33, ptr %y, align 8
+  store i64 0, ptr %y.f, align 8
+  br label %after_assign34
+
+after_assign34:                                   ; preds = %cond.phi32, %assign_optional30, %assign_optional25
+  %18 = load ptr, ptr %a, align 8
+  %i2nb35 = icmp eq ptr %18, null
+  br i1 %i2nb35, label %cond.lhs36, label %cond.rhs41
+
+cond.lhs36:                                       ; preds = %after_assign34
+  %optval37 = load i64, ptr %x.f, align 8
+  %not_err38 = icmp eq i64 %optval37, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err38, i1 true)
+  br i1 %19, label %after_check40, label %assign_optional39
+
+assign_optional39:                                ; preds = %cond.lhs36
+  store i64 %optval37, ptr %y.f, align 8
+  br label %after_assign43
+
+after_check40:                                    ; preds = %cond.lhs36
+  %20 = load ptr, ptr %x, align 8
+  br label %cond.phi42
+
+cond.rhs41:                                       ; preds = %after_assign34
+  store i64 ptrtoint (ptr @"test.Test$FOO" to i64), ptr %y.f, align 8
+  br label %after_assign43
+
+cond.phi42:                                       ; preds = %after_check40
+  store ptr %20, ptr %y, align 8
+  store i64 0, ptr %y.f, align 8
+  br label %after_assign43
+
+after_assign43:                                   ; preds = %cond.phi42, %cond.rhs41, %assign_optional39
+  %21 = load ptr, ptr %a, align 8
+  %i2nb44 = icmp eq ptr %21, null
+  br i1 %i2nb44, label %cond.lhs45, label %cond.rhs46
+
+cond.lhs45:                                       ; preds = %after_assign43
+  store i64 ptrtoint (ptr @"test.Test$FOO" to i64), ptr %y.f, align 8
+  br label %after_assign52
+
+cond.rhs46:                                       ; preds = %after_assign43
+  %optval47 = load i64, ptr %x.f, align 8
+  %not_err48 = icmp eq i64 %optval47, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err48, i1 true)
+  br i1 %22, label %after_check50, label %assign_optional49
+
+assign_optional49:                                ; preds = %cond.rhs46
+  store i64 %optval47, ptr %y.f, align 8
+  br label %after_assign52
+
+after_check50:                                    ; preds = %cond.rhs46
+  %23 = load ptr, ptr %x, align 8
+  br label %cond.phi51
+
+cond.phi51:                                       ; preds = %after_check50
+  store ptr %23, ptr %y, align 8
+  store i64 0, ptr %y.f, align 8
+  br label %after_assign52
+
+after_assign52:                                   ; preds = %cond.phi51, %assign_optional49, %cond.lhs45
+  %24 = load ptr, ptr %a, align 8
+  %i2nb53 = icmp eq ptr %24, null
+  br i1 %i2nb53, label %cond.lhs54, label %cond.rhs55
+
+cond.lhs54:                                       ; preds = %after_assign52
+  store i64 ptrtoint (ptr @"test.Test$FOO" to i64), ptr %y.f, align 8
+  br label %after_assign57
+
+cond.rhs55:                                       ; preds = %after_assign52
+  store i64 ptrtoint (ptr @"test.Test$BAR" to i64), ptr %y.f, align 8
+  br label %after_assign57
+
+after_assign57:                                   ; preds = %cond.rhs55, %cond.lhs54
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/check_implict_conversion_signed_unsigned.c3t b/test/test_suite7/expressions/check_implict_conversion_signed_unsigned.c3t
new file mode 100644
index 000000000..cbc68d0cd
--- /dev/null
+++ b/test/test_suite7/expressions/check_implict_conversion_signed_unsigned.c3t
@@ -0,0 +1,23 @@
+module check;
+
+fn int main()
+{
+    int a = 0;
+    ulong b = 3;
+    b - a;
+    return 1;
+}
+
+/* #expect: check.ll
+
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i64, align 8
+  store i32 0, ptr %a, align 4
+  store i64 3, ptr %b, align 8
+  %0 = load i64, ptr %b, align 8
+  %1 = load i32, ptr %a, align 4
+  %sext = sext i32 %1 to i64
+  %sub = sub i64 %0, %sext
+  ret i32 1
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/deref_access_null.c3t b/test/test_suite7/expressions/deref_access_null.c3t
new file mode 100644
index 000000000..2ebe621b1
--- /dev/null
+++ b/test/test_suite7/expressions/deref_access_null.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+// #safe: yes
+module test;
+
+struct Foo
+{
+    int a;
+    float b;
+}
+
+macro @offset_buggy($Type, #member)
+{
+    $Type *t = null;
+    return (usz)(uptr)&t.#member;
+}
+
+fn int main()
+{
+	usz a = @offset_buggy(Foo, b);
+	return (int)a;
+}
+
+/* #expect: test.ll
+
+define i32 @main() #0 {
+entry:
+  %a = alloca i64, align 8
+  %t = alloca ptr, align 8
+  store ptr null, ptr %t, align 8
+  %0 = load ptr, ptr %t, align 8
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 4
+  %ptrxi = ptrtoint ptr %ptradd to i64
+  store i64 %ptrxi, ptr %a, align 8
+  %1 = load i64, ptr %a, align 8
+  %trunc = trunc i64 %1 to i32
+  ret i32 %trunc
+}
diff --git a/test/test_suite7/expressions/deref_const_string.c3t b/test/test_suite7/expressions/deref_const_string.c3t
new file mode 100644
index 000000000..84a889211
--- /dev/null
+++ b/test/test_suite7/expressions/deref_const_string.c3t
@@ -0,0 +1,29 @@
+// #target: macos-x64
+module test;
+import std;
+
+const char *VOWS = "aeiou";
+const char *CONS = "bcdfghjklmnpqrstvwxyz";
+const char *TEST = "";
+
+fn int main (String[] args)
+{
+	char a = *VOWS;
+	char b = *CONS;
+	char c = *TEST;
+	return 0;
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [6 x i8] c"aeiou\00", align 1
+@test.VOWS = local_unnamed_addr constant ptr @.str, align 8
+@.str.3 = private unnamed_addr constant [22 x i8] c"bcdfghjklmnpqrstvwxyz\00", align 1
+@test.CONS = local_unnamed_addr constant ptr @.str.3, align 8
+@.str.4 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
+@test.TEST = local_unnamed_addr constant ptr @.str.4, align 8
+
+  store i8 97, ptr %a, align 1
+  store i8 98, ptr %b, align 1
+  store i8 0, ptr %c, align 1
+  ret i32 0
diff --git a/test/test_suite7/expressions/elvis.c3t b/test/test_suite7/expressions/elvis.c3t
new file mode 100644
index 000000000..aad8390f9
--- /dev/null
+++ b/test/test_suite7/expressions/elvis.c3t
@@ -0,0 +1,81 @@
+// #target: macos-x64
+fn int* elvis(int *x, int *y)
+{
+    return x ?: y;
+}
+
+
+fn int* elvis2(int *x, int *y)
+{
+    return x ?: (y ?: x);
+}
+
+fn bool elvis3(bool x, bool y)
+{
+    return x ?: y;
+}
+
+
+/* #expect: elvis.ll
+
+define ptr @elvis.elvis(ptr %0, ptr %1) #0 {
+entry:
+  %i2b = icmp ne ptr %0, null
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi ptr [ %0, %cond.lhs ], [ %1, %cond.rhs ]
+  ret ptr %val
+}
+
+; Function Attrs: nounwind uwtable
+define ptr @elvis.elvis2(ptr %0, ptr %1) #0 {
+entry:
+  %i2b = icmp ne ptr %0, null
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  br label %cond.phi4
+
+cond.rhs:                                         ; preds = %entry
+  %i2b1 = icmp ne ptr %1, null
+  br i1 %i2b1, label %cond.lhs2, label %cond.rhs3
+
+cond.lhs2:                                        ; preds = %cond.rhs
+  br label %cond.phi
+
+cond.rhs3:                                        ; preds = %cond.rhs
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs3, %cond.lhs2
+  %val = phi ptr [ %1, %cond.lhs2 ], [ %0, %cond.rhs3 ]
+  br label %cond.phi4
+
+cond.phi4:                                        ; preds = %cond.phi, %cond.lhs
+  %val5 = phi ptr [ %0, %cond.lhs ], [ %val, %cond.phi ]
+  ret ptr %val5
+}
+
+define zeroext i8 @elvis.elvis3(i8 zeroext %0, i8 zeroext %1) #0 {
+entry:
+  %2 = trunc i8 %0 to i1
+  br i1 %2, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  %3 = trunc i8 %1 to i1
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi i1 [ %2, %cond.lhs ], [ %3, %cond.rhs ]
+  %4 = zext i1 %val to i8
+  ret i8 %4
+}
diff --git a/test/test_suite7/expressions/enum_ct_sub.c3t b/test/test_suite7/expressions/enum_ct_sub.c3t
new file mode 100644
index 000000000..50deb9772
--- /dev/null
+++ b/test/test_suite7/expressions/enum_ct_sub.c3t
@@ -0,0 +1,20 @@
+enum Foo : char
+{
+	ABC,
+	BCD
+}
+distinct Abc = int;
+fn void main()
+{
+	$assert (Foo.ABC - Foo.BCD) == 255;
+	char c = Foo.ABC - Foo.BCD;
+	$assert $typeof(Foo.ABC - Foo.BCD).typeid == char.typeid;
+	$assert Foo.BCD - 1 == Foo.ABC;
+	$assert Foo.ABC + 1 == Foo.BCD;
+	$assert $typeof(Foo.BCD - 1).typeid == Foo.typeid;
+	$assert $typeof(Foo.ABC + 1).typeid == Foo.typeid;
+	Foo x = Foo.BCD;
+	$assert $typeof(x - 1).typeid == Foo.typeid;
+	x = x - 1;
+	$assert $typeof(x + 1).typeid == Foo.typeid;
+}
diff --git a/test/test_suite7/expressions/fail_index_usize.c3 b/test/test_suite7/expressions/fail_index_usize.c3
new file mode 100644
index 000000000..438d83cde
--- /dev/null
+++ b/test/test_suite7/expressions/fail_index_usize.c3
@@ -0,0 +1,5 @@
+fn void test(int* array, usz n)
+{
+    array[n] = 33;
+    n[array] = 33; // #error: Indexing a value of type
+}
diff --git a/test/test_suite7/expressions/fmuladd.c3t b/test/test_suite7/expressions/fmuladd.c3t
new file mode 100644
index 000000000..c1fe384de
--- /dev/null
+++ b/test/test_suite7/expressions/fmuladd.c3t
@@ -0,0 +1,82 @@
+// #target: macos-x64
+// #opt: --fp-math=relaxed
+module test;
+import std::io;
+
+fn float tester1(float a, float b, float c)
+{
+	return a * b + c;
+}
+fn float tester2(float a, float b, float c)
+{
+	return c + a * b;
+}
+fn float tester3(float a, float b, float c)
+{
+	c = -c;
+	return a * b - c;
+}
+fn float tester4(float a, float b, float c)
+{
+	c = -c;
+	return -c + a * b;
+}
+
+fn float tester5(float a, float b, float c)
+{
+	c = -c;
+	return -(c - a * b);
+}
+fn float tester6(float a, float b, float c)
+{
+	c = -c;
+	return -(-a * b + c);
+}
+
+fn void main()
+{
+	float a = 3.1;
+	float b = 1.4;
+	float c = 0.1;
+	io::printfn("%f", tester1(a, b, c));
+	io::printfn("%f", tester2(a, b, c));
+	io::printfn("%f", tester3(a, b, c));
+	io::printfn("%f", tester4(a, b, c));
+	io::printfn("%f", tester5(a, b, c));
+	io::printfn("%f", tester6(a, b, c));
+}
+
+/* #expect: test.ll
+
+   %3 = call reassoc arcp contract float @llvm.fmuladd.f32(float %0, float %1, float %2)
+
+   %3 = call reassoc arcp contract float @llvm.fmuladd.f32(float %0, float %1, float %2)
+
+   %3 = load float, ptr %c, align 4
+   %fneg = fneg reassoc arcp contract float %3
+   store float %fneg, ptr %c, align 4
+   %4 = load float, ptr %c, align 4
+   %5 = fneg reassoc arcp contract float %4
+   %6 = call reassoc arcp contract float @llvm.fmuladd.f32(float %0, float %1, float %5)
+
+   %fneg = fneg reassoc arcp contract float %3
+   store float %fneg, ptr %c, align 4
+   %4 = load float, ptr %c, align 4
+   %fneg1 = fneg reassoc arcp contract float %4
+   %5 = call reassoc arcp contract float @llvm.fmuladd.f32(float %0, float %1, float %fneg1)
+
+   %3 = load float, ptr %c, align 4
+   %fneg = fneg reassoc arcp contract float %3
+   store float %fneg, ptr %c, align 4
+   %4 = load float, ptr %c, align 4
+   %5 = fneg reassoc arcp contract float %1
+   %6 = call reassoc arcp contract float @llvm.fmuladd.f32(float %0, float %5, float %4)
+   %fneg1 = fneg reassoc arcp contract float %6
+
+   %3 = load float, ptr %c, align 4
+   %fneg = fneg reassoc arcp contract float %3
+   store float %fneg, ptr %c, align 4
+   %fneg1 = fneg reassoc arcp contract float %0
+   %4 = load float, ptr %c, align 4
+   %5 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fneg1, float %1, float %4)
+   %fneg2 = fneg reassoc arcp contract float %5
diff --git a/test/test_suite7/expressions/fmuladd_err.c3t b/test/test_suite7/expressions/fmuladd_err.c3t
new file mode 100644
index 000000000..9f4569eac
--- /dev/null
+++ b/test/test_suite7/expressions/fmuladd_err.c3t
@@ -0,0 +1,71 @@
+// #target: macos-x64
+// #opt: --fp-math=relaxed
+module test;
+
+fn float easeElasticIn(float t, float b, float c, float d) @inline // Ease: Elastic In
+{
+    if (t == 0.0f) return b;
+    if ((t/=d) == 1.0f) return (b + c);
+
+    float p = d*0.3f;
+    float a = c;
+    float s = p/4.0f;
+    float postFix = a*$$pow(2.0f, 10.0f*(t-=1.0f));
+
+    return (-(postFix*$$sin((t*d-s)*(2.0f*3.14f)/p )) + b);
+}
+
+/* #expect: test.ll
+
+
+define float @test.easeElasticIn(float %0, float %1, float %2, float %3) #0 {
+entry:
+  %t = alloca float, align 4
+  %p = alloca float, align 4
+  %a = alloca float, align 4
+  %s = alloca float, align 4
+  %postFix = alloca float, align 4
+  store float %0, ptr %t, align 4
+  %4 = load float, ptr %t, align 4
+  %eq = fcmp reassoc arcp contract oeq float %4, 0.000000e+00
+  br i1 %eq, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  ret float %1
+if.exit:                                          ; preds = %entry
+  %5 = load float, ptr %t, align 4
+  %fdiv = fdiv reassoc arcp contract float %5, %3
+  store float %fdiv, ptr %t, align 4
+  %eq1 = fcmp reassoc arcp contract oeq float %fdiv, 1.000000e+00
+  br i1 %eq1, label %if.then2, label %if.exit3
+if.then2:                                         ; preds = %if.exit
+  %fadd = fadd reassoc arcp contract float %1, %2
+  ret float %fadd
+if.exit3:                                         ; preds = %if.exit
+  %fmul = fmul reassoc arcp contract float %3, 0x3FD3333340000000
+  store float %fmul, ptr %p, align 4
+  store float %2, ptr %a, align 4
+  %6 = load float, ptr %p, align 4
+  %fdiv4 = fdiv reassoc arcp contract float %6, 4.000000e+00
+  store float %fdiv4, ptr %s, align 4
+  %7 = load float, ptr %a, align 4
+  %8 = load float, ptr %t, align 4
+  %fsub = fsub reassoc arcp contract float %8, 1.000000e+00
+  store float %fsub, ptr %t, align 4
+  %fmul5 = fmul reassoc arcp contract float 1.000000e+01, %fsub
+  %9 = call reassoc arcp contract float @llvm.pow.f32(float 2.000000e+00, float %fmul5)
+  %fmul6 = fmul reassoc arcp contract float %7, %9
+  store float %fmul6, ptr %postFix, align 4
+  %10 = load float, ptr %postFix, align 4
+  %11 = load float, ptr %t, align 4
+  %12 = load float, ptr %s, align 4
+  %13 = fneg reassoc arcp contract float %12
+  %14 = call reassoc arcp contract float @llvm.fmuladd.f32(float %11, float %3, float %13)
+  %fmul7 = fmul reassoc arcp contract float %14, 0x40191EB860000000
+  %15 = load float, ptr %p, align 4
+  %fdiv8 = fdiv reassoc arcp contract float %fmul7, %15
+  %16 = call reassoc arcp contract float @llvm.sin.f32(float %fdiv8)
+  %17 = fneg reassoc arcp contract float %1
+  %18 = call reassoc arcp contract float @llvm.fmuladd.f32(float %10, float %16, float %17)
+  %19 = fneg reassoc arcp contract float %18
+  ret float %19
+}
diff --git a/test/test_suite7/expressions/folding_ptr.c3t b/test/test_suite7/expressions/folding_ptr.c3t
new file mode 100644
index 000000000..579b99b65
--- /dev/null
+++ b/test/test_suite7/expressions/folding_ptr.c3t
@@ -0,0 +1,32 @@
+// #target: macos-x64
+module test;
+struct Test
+{
+    int x;
+}
+
+extern Test *cfun;
+
+fn int f()
+{
+  if (!(cfun + 0)) return 0;
+  return cfun.x;
+}
+
+
+/* #expect: test.ll
+
+define i32 @test.f() #0 {
+entry:
+  %0 = load ptr, ptr @cfun, align 8
+  %i2nb = icmp eq ptr %0, null
+  br i1 %i2nb, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i32 0
+
+if.exit:                                          ; preds = %entry
+  %1 = load ptr, ptr @cfun, align 8
+  %2 = load i32, ptr %1, align 4
+  ret i32 %2
+}
diff --git a/test/test_suite7/expressions/incdec.c3t b/test/test_suite7/expressions/incdec.c3t
new file mode 100644
index 000000000..04fc6b6c9
--- /dev/null
+++ b/test/test_suite7/expressions/incdec.c3t
@@ -0,0 +1,45 @@
+// #target: macos-x64
+fn void test(int* foo)
+{
+    foo++;
+    foo--;
+    int y = 10;
+    y++;
+    y--;
+    float z = 2.0;
+    z++;
+    ++z;
+    z--;
+}
+
+/* #expect: incdec.ll
+
+
+  %foo = alloca ptr, align 8
+  %y = alloca i32, align 4
+  %z = alloca float, align 4
+  store ptr %0, ptr %foo, align 8
+  %1 = load ptr, ptr %foo, align 8
+  %ptradd_any = getelementptr i8, ptr %1, i8 4
+  store ptr %ptradd_any, ptr %foo, align 8
+  %2 = load ptr, ptr %foo, align 8
+  %ptradd_any1 = getelementptr i8, ptr %2, i8 -4
+  store ptr %ptradd_any1, ptr %foo, align 8
+  store i32 10, ptr %y, align 4
+  %3 = load i32, ptr %y, align 4
+  %add = add i32 %3, 1
+  store i32 %add, ptr %y, align 4
+  %4 = load i32, ptr %y, align 4
+  %sub = sub i32 %4, 1
+  store i32 %sub, ptr %y, align 4
+  store float 2.000000e+00, ptr %z, align 4
+  %5 = load float, ptr %z, align 4
+  %fincdec = fadd float %5, 1.000000e+00
+  store float %fincdec, ptr %z, align 4
+  %6 = load float, ptr %z, align 4
+  %fincdec2 = fadd float %6, 1.000000e+00
+  store float %fincdec2, ptr %z, align 4
+  %7 = load float, ptr %z, align 4
+  %fincdec3 = fadd float %7, -1.000000e+00
+  store float %fincdec3, ptr %z, align 4
+  ret void
diff --git a/test/test_suite7/expressions/incdec_overload.c3t b/test/test_suite7/expressions/incdec_overload.c3t
new file mode 100644
index 000000000..fefc8c27b
--- /dev/null
+++ b/test/test_suite7/expressions/incdec_overload.c3t
@@ -0,0 +1,179 @@
+// #target: macos-x64
+module test;
+import std;
+
+def Abc = HashMap(<int, int>);
+Abc m;
+fn void main()
+{
+	m[3] = 100;
+	int! x = m[3]--;
+	assert(m[3]!! == 99);
+	assert(x!! == 100);
+	x = ++m[3];
+	assert(m[3]!! == 100);
+	assert(x!! == 100);
+}
+
+/* #expect: test.ll
+
+entry:
+  %x = alloca i32, align 4
+  %x.f = alloca i64, align 8
+  %.anon = alloca i32, align 4
+  %anon.f = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %.anon1 = alloca i32, align 4
+  %anon.f2 = alloca i64, align 8
+  %.anon18 = alloca i32, align 4
+  %anon.f19 = alloca i64, align 8
+  %retparam20 = alloca i32, align 4
+  %.anon27 = alloca i32, align 4
+  %anon.f28 = alloca i64, align 8
+  %0 = call i8 @"std_collections_map$int$int$.HashMap.set"(ptr @test.m, i32 3, i32 100)
+  %1 = call i64 @"std_collections_map$int$int$.HashMap.get"(ptr %retparam, ptr @test.m, i32 3)
+  %not_err = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %1, ptr %anon.f, align 8
+  br label %optional_assign_jump
+
+after_check:                                      ; preds = %entry
+  %3 = load i32, ptr %retparam, align 4
+  store i32 %3, ptr %.anon, align 4
+  store i64 0, ptr %anon.f, align 8
+  br label %after_assign
+
+optional_assign_jump:                             ; preds = %assign_optional
+  %reload_err = load i64, ptr %anon.f, align 8
+  store i64 %reload_err, ptr %x.f, align 8
+  br label %after_assign17
+
+after_assign:                                     ; preds = %after_check
+  %optval = load i64, ptr %anon.f, align 8
+  %not_err3 = icmp eq i64 %optval, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %4, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %after_assign
+  store i64 %optval, ptr %anon.f2, align 8
+  br label %optional_assign_jump6
+
+after_check5:                                     ; preds = %after_assign
+  %5 = load i32, ptr %.anon, align 4
+  %sub = sub i32 %5, 1
+  store i32 %sub, ptr %.anon, align 4
+  store i32 %5, ptr %.anon1, align 4
+  store i64 0, ptr %anon.f2, align 8
+  br label %after_assign8
+
+optional_assign_jump6:                            ; preds = %assign_optional4
+  %reload_err7 = load i64, ptr %anon.f2, align 8
+  store i64 %reload_err7, ptr %x.f, align 8
+  br label %after_assign17
+
+after_assign8:                                    ; preds = %after_check5
+  %optval9 = load i64, ptr %anon.f, align 8
+  %not_err10 = icmp eq i64 %optval9, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %6, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %after_assign8
+  store i64 %optval9, ptr %x.f, align 8
+  br label %after_assign17
+
+after_check12:                                    ; preds = %after_assign8
+  %7 = load i32, ptr %.anon, align 4
+  %8 = call i8 @"std_collections_map$int$int$.HashMap.set"(ptr @test.m, i32 3, i32 %7)
+  %optval13 = load i64, ptr %anon.f2, align 8
+  %not_err14 = icmp eq i64 %optval13, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err14, i1 true)
+  br i1 %9, label %after_check16, label %assign_optional15
+
+assign_optional15:                                ; preds = %after_check12
+  store i64 %optval13, ptr %x.f, align 8
+  br label %after_assign17
+
+after_check16:                                    ; preds = %after_check12
+  %10 = load i32, ptr %.anon1, align 4
+  store i32 %10, ptr %x, align 4
+  store i64 0, ptr %x.f, align 8
+  br label %after_assign17
+
+after_assign17:                                   ; preds = %after_check16, %assign_optional15, %assign_optional11, %optional_assign_jump6, %optional_assign_jump
+  %11 = call i64 @"std_collections_map$int$int$.HashMap.get"(ptr %retparam20, ptr @test.m, i32 3)
+  %not_err21 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err21, i1 true)
+  br i1 %12, label %after_check23, label %assign_optional22
+
+assign_optional22:                                ; preds = %after_assign17
+  store i64 %11, ptr %anon.f19, align 8
+  br label %optional_assign_jump24
+
+after_check23:                                    ; preds = %after_assign17
+  %13 = load i32, ptr %retparam20, align 4
+  store i32 %13, ptr %.anon18, align 4
+  store i64 0, ptr %anon.f19, align 8
+  br label %after_assign26
+
+optional_assign_jump24:                           ; preds = %assign_optional22
+  %reload_err25 = load i64, ptr %anon.f19, align 8
+  store i64 %reload_err25, ptr %x.f, align 8
+  br label %after_assign44
+
+after_assign26:                                   ; preds = %after_check23
+  %optval29 = load i64, ptr %anon.f19, align 8
+  %not_err30 = icmp eq i64 %optval29, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err30, i1 true)
+  br i1 %14, label %after_check32, label %assign_optional31
+
+assign_optional31:                                ; preds = %after_assign26
+  store i64 %optval29, ptr %anon.f28, align 8
+  br label %optional_assign_jump33
+
+after_check32:                                    ; preds = %after_assign26
+  %15 = load i32, ptr %.anon18, align 4
+  %add = add i32 %15, 1
+  store i32 %add, ptr %.anon18, align 4
+  store i32 %add, ptr %.anon27, align 4
+  store i64 0, ptr %anon.f28, align 8
+  br label %after_assign35
+
+optional_assign_jump33:                           ; preds = %assign_optional31
+  %reload_err34 = load i64, ptr %anon.f28, align 8
+  store i64 %reload_err34, ptr %x.f, align 8
+  br label %after_assign44
+
+after_assign35:                                   ; preds = %after_check32
+  %optval36 = load i64, ptr %anon.f19, align 8
+  %not_err37 = icmp eq i64 %optval36, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err37, i1 true)
+  br i1 %16, label %after_check39, label %assign_optional38
+
+assign_optional38:                                ; preds = %after_assign35
+  store i64 %optval36, ptr %x.f, align 8
+  br label %after_assign44
+
+after_check39:                                    ; preds = %after_assign35
+  %17 = load i32, ptr %.anon18, align 4
+  %18 = call i8 @"std_collections_map$int$int$.HashMap.set"(ptr @test.m, i32 3, i32 %17)
+  %optval40 = load i64, ptr %anon.f28, align 8
+  %not_err41 = icmp eq i64 %optval40, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err41, i1 true)
+  br i1 %19, label %after_check43, label %assign_optional42
+
+assign_optional42:                                ; preds = %after_check39
+  store i64 %optval40, ptr %x.f, align 8
+  br label %after_assign44
+
+after_check43:                                    ; preds = %after_check39
+  %20 = load i32, ptr %.anon27, align 4
+  store i32 %20, ptr %x, align 4
+  store i64 0, ptr %x.f, align 8
+  br label %after_assign44
+
+after_assign44:                                   ; preds = %after_check43, %assign_optional42, %assign_optional38, %optional_assign_jump33, %optional_assign_jump24
+  ret void
+}
diff --git a/test/test_suite7/expressions/negate_int.c3 b/test/test_suite7/expressions/negate_int.c3
new file mode 100644
index 000000000..cf7c367d8
--- /dev/null
+++ b/test/test_suite7/expressions/negate_int.c3
@@ -0,0 +1,41 @@
+fn void test1()
+{
+    short! a = 1;
+    @ok(-a);
+    short b = -a; // #error: 'short!' to 'short'.
+}
+
+fn void test2()
+{
+    int! a = 1;
+    @ok(-a);
+    int b = -a; // #error: 'int!' to 'int'
+}
+
+fn void test3()
+{
+    long! a = 1;
+    @ok(-a);
+    long b = -a; // #error: 'long!' to 'long'
+}
+
+fn void test4()
+{
+    short! a = 1;
+    @ok(~a);
+    short b = ~a; // #error: 'short!' to 'short'
+}
+
+fn void test5()
+{
+    int! a = 1;
+    @ok(~a);
+    int b = ~a; // #error: 'int!' to 'int'
+}
+
+fn void test6()
+{
+    long! a = 1;
+    @ok(~a);
+    long b = ~a; // #error: 'long!' to 'long'
+}
diff --git a/test/test_suite7/expressions/negated_macro.c3t b/test/test_suite7/expressions/negated_macro.c3t
new file mode 100644
index 000000000..3f7e8e8b3
--- /dev/null
+++ b/test/test_suite7/expressions/negated_macro.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module test;
+struct Foo
+{
+	int hello;
+	int bar;
+}
+
+macro usz @offsetof($Type) {
+  $Type* x;
+  return x.bar;
+}
+
+
+fn void main(String[] argv)
+{
+	Foo x;
+	(Foo*)((void*)&x - @offsetof(Foo));
+}
+
+
+/* #expect: test.ll
+
+
+entry:
+  store i32 0, ptr %x, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 0, ptr %ptradd1, align 4
+  store ptr null, ptr %x2, align 8
+  %2 = load ptr, ptr %x2, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %2, i64 4
+  %3 = load i32, ptr %ptradd3, align 4
+  %sext = sext i32 %3 to i64
+  %neg = sub i64 0, %sext
+  %ptradd_any = getelementptr i8, ptr %x, i64 %neg
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/no_valid_conversion_minus.c3 b/test/test_suite7/expressions/no_valid_conversion_minus.c3
new file mode 100644
index 000000000..68ad6a1c1
--- /dev/null
+++ b/test/test_suite7/expressions/no_valid_conversion_minus.c3
@@ -0,0 +1,10 @@
+struct Foo
+{ int j; }
+
+fn int main()
+{
+    int a = 0;
+    Foo f;
+    f - a; // #error: The subtraction 'Foo' - 'int' is not possible
+    return 1;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/not_in_wrong_position.c3 b/test/test_suite7/expressions/not_in_wrong_position.c3
new file mode 100644
index 000000000..a0e68c976
--- /dev/null
+++ b/test/test_suite7/expressions/not_in_wrong_position.c3
@@ -0,0 +1,4 @@
+fn void main()
+{
+	x = (a ~ a); // #error: can't appear
+}
diff --git a/test/test_suite7/expressions/opt_in_conv.c3 b/test/test_suite7/expressions/opt_in_conv.c3
new file mode 100644
index 000000000..3989ac32b
--- /dev/null
+++ b/test/test_suite7/expressions/opt_in_conv.c3
@@ -0,0 +1,9 @@
+module test;
+import std;
+fn void main()
+{
+	String s = "Hello";
+	Char16* title = String.to_new_utf16(s).ptr; // #error: It is not possible to cast from
+	int! a;
+	float b = (float)a; // #error: It is not possible to cast from
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/optional_and_error.c3 b/test/test_suite7/expressions/optional_and_error.c3
new file mode 100644
index 000000000..aa9ce69ed
--- /dev/null
+++ b/test/test_suite7/expressions/optional_and_error.c3
@@ -0,0 +1,13 @@
+module testing;
+import std::io;
+
+fn void main()
+{
+    bool ok;
+    if (ok && !foo()) io::printfn("nok"); // #error: The expression may not be an optional
+}
+
+fn bool! foo()
+{
+    return false;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/optional_ternary.c3t b/test/test_suite7/expressions/optional_ternary.c3t
new file mode 100644
index 000000000..f29a7876b
--- /dev/null
+++ b/test/test_suite7/expressions/optional_ternary.c3t
@@ -0,0 +1,415 @@
+// #target: macos-x64
+
+module test;
+
+fault Foo
+{
+	X
+}
+
+fn int! test(int i)
+{
+	return i ?: Foo.X?;
+}
+
+fn int! test2(int i)
+{
+	return i ? Foo.X? : Foo.X?;
+}
+
+
+fn int! test3(int i)
+{
+	return i ? 2 : Foo.X?;
+}
+
+
+fn int! test4(int i)
+{
+	int! y = i;
+	return (y!) ?: Foo.X?;
+}
+fn int! test5(int i)
+{
+	int! y = i;
+	return (y!) ? Foo.X? : Foo.X?;
+}
+
+fn int! test6(int i)
+{
+	int! y = i;
+	return (y!) ? 2 : Foo.X?;
+}
+
+fn int! test7(int i)
+{
+	int! y = i;
+    return (y!) ? Foo.X? : 2;
+}
+
+fn void main()
+{
+	test(1)!!;
+	test7(0)!!;
+	test6(1)!!;
+	int! i = test2(3);
+}
+
+/* expect: test.ll
+source_filename = "test"
+target datalayout = "e-m:o-p270:32:32-p271:32
+target triple = "x86_64-apple
+
+%.fault = type { i64, %"char[]" }
+%"char[]" = type { i8*, i64 }
+%.introspect = type { i8, i64, i64, i64, [0 x i64] }
+
+@"test.Foo$X" = linkonce constant %.fault { i64 ptrtoint (%.introspect* @"$ct.test.Foo" to i64), %"char[]" { i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.fault, i64 0, i64 0), i64 1 } }, align 8
+@.fault = internal constant [2 x i8] c"X\00", align 1
+@"$ct.test.Foo" = linkonce constant %.introspect { i8 9, i64 8, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.zstr = internal constant [28 x i8] c"Runtime error force unwrap!\00", align 1
+@.zstr.1 = internal constant [20 x i8] c"optional_ternary.c3\00", align 1
+@.zstr.2 = internal constant [5 x i8] c"main\00", align 1
+@.zstr.3 = internal constant [28 x i8] c"Runtime error force unwrap!\00", align 1
+@.zstr.4 = internal constant [20 x i8] c"optional_ternary.c3\00", align 1
+@.zstr.5 = internal constant [5 x i8] c"main\00", align 1
+@.zstr.6 = internal constant [28 x i8] c"Runtime error force unwrap!\00", align 1
+@.zstr.7 = internal constant [20 x i8] c"optional_ternary.c3\00", align 1
+@.zstr.8 = internal constant [5 x i8] c"main\00", align 1
+
+
+define i64 @test.test(i32* %0, i32 %1) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %i2b = icmp ne i32 %1, 0
+  br i1 %i2b, label %cond.phi, label %cond.rhs
+
+cond.rhs:                                         ; preds = %entry
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.phi:                                         ; preds = %entry
+  store i32 %1, i32* %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.rhs
+  %2 = load i64, i64* %reterr, align 8
+  ret i64 %2
+}
+
+
+define i64 @test.test2(i32* %0, i32 %1) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %i2b = icmp ne i32 %1, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.rhs:                                         ; preds = %entry
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.phi:                                         ; No predecessors!
+  store i32 undef, i32* %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.rhs, %cond.lhs
+  %2 = load i64, i64* %reterr, align 8
+  ret i64 %2
+}
+
+
+define i64 @test.test3(i32* %0, i32 %1) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %i2b = icmp ne i32 %1, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.phi:                                         ; preds = %cond.lhs
+  store i32 2, i32* %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.rhs
+  %2 = load i64, i64* %reterr, align 8
+  ret i64 %2
+}
+
+
+define i64 @test.test4(i32* %0, i32 %1) #0 {
+entry:
+  %y = alloca i32, align 4
+  %y.f = alloca i64, align 8
+  %reterr = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  store i32 %1, i32* %y, align 4
+  store i64 0, i64* %y.f, align 8
+  %optval = load i64, i64* %y.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  br i1 %not_err, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, i64* %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %2 = load i64, i64* %error_var, align 8
+  ret i64 %2
+
+noerr_block:                                      ; preds = %after_check
+  %3 = load i32, i32* %y, align 4
+  %i2b = icmp ne i32 %3, 0
+  br i1 %i2b, label %cond.phi, label %cond.rhs
+
+cond.rhs:                                         ; preds = %noerr_block
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.phi:                                         ; preds = %noerr_block
+  store i32 %3, i32* %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.rhs
+  %4 = load i64, i64* %reterr, align 8
+  ret i64 %4
+}
+
+
+define i64 @test.test5(i32* %0, i32 %1) #0 {
+entry:
+  %y = alloca i32, align 4
+  %y.f = alloca i64, align 8
+  %reterr = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  store i32 %1, i32* %y, align 4
+  store i64 0, i64* %y.f, align 8
+  %optval = load i64, i64* %y.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  br i1 %not_err, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, i64* %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %2 = load i64, i64* %error_var, align 8
+  ret i64 %2
+
+noerr_block:                                      ; preds = %after_check
+  %3 = load i32, i32* %y, align 4
+  %i2b = icmp ne i32 %3, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %noerr_block
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.rhs:                                         ; preds = %noerr_block
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.phi:                                         ; No predecessors!
+  store i32 undef, i32* %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.rhs, %cond.lhs
+  %4 = load i64, i64* %reterr, align 8
+  ret i64 %4
+}
+
+
+define i64 @test.test6(i32* %0, i32 %1) #0 {
+entry:
+  %y = alloca i32, align 4
+  %y.f = alloca i64, align 8
+  %reterr = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  store i32 %1, i32* %y, align 4
+  store i64 0, i64* %y.f, align 8
+  %optval = load i64, i64* %y.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  br i1 %not_err, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, i64* %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %2 = load i64, i64* %error_var, align 8
+  ret i64 %2
+
+noerr_block:                                      ; preds = %after_check
+  %3 = load i32, i32* %y, align 4
+  %i2b = icmp ne i32 %3, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %noerr_block
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %noerr_block
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.phi:                                         ; preds = %cond.lhs
+  store i32 2, i32* %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.rhs
+  %4 = load i64, i64* %reterr, align 8
+  ret i64 %4
+}
+
+
+define i64 @test.test7(i32* %0, i32 %1) #0 {
+entry:
+  %y = alloca i32, align 4
+  %y.f = alloca i64, align 8
+  %reterr = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  store i32 %1, i32* %y, align 4
+  store i64 0, i64* %y.f, align 8
+  %optval = load i64, i64* %y.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  br i1 %not_err, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, i64* %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %2 = load i64, i64* %error_var, align 8
+  ret i64 %2
+
+noerr_block:                                      ; preds = %after_check
+  %3 = load i32, i32* %y, align 4
+  %i2b = icmp ne i32 %3, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %noerr_block
+  store i64 ptrtoint (%.fault* @"test.Foo$X" to i64), i64* %reterr, align 8
+  br label %err_retblock
+
+cond.rhs:                                         ; preds = %noerr_block
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs
+  store i32 2, i32* %0, align 4
+  ret i64 0
+
+err_retblock:                                     ; preds = %cond.lhs
+  %4 = load i64, i64* %reterr, align 8
+  ret i64 %4
+}
+
+
+define void @test.main() #0 {
+entry:
+  %error_var = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %error_var1 = alloca i64, align 8
+  %retparam2 = alloca i32, align 4
+  %error_var8 = alloca i64, align 8
+  %retparam9 = alloca i32, align 4
+  %i = alloca i32, align 4
+  %i.f = alloca i64, align 8
+  %retparam15 = alloca i32, align 4
+  %0 = call i64 @test.test(i32* %retparam, i32 1)
+  %not_err = icmp eq i64 %0, 0
+  br i1 %not_err, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %0, i64* %error_var, align 8
+  br label %panic_block
+
+after_check:                                      ; preds = %entry
+  %1 = load i32, i32* %retparam, align 4
+  br label %noerr_block
+
+panic_block:                                      ; preds = %assign_optional
+  call void @std.core.builtin.panic(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.zstr, i64 0, i64 0), i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.zstr.1, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.zstr.2, i64 0, i64 0), i32 51)
+  unreachable
+
+noerr_block:                                      ; preds = %after_check
+  %2 = call i64 @test.test7(i32* %retparam2, i32 0)
+  %not_err3 = icmp eq i64 %2, 0
+  br i1 %not_err3, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %2, i64* %error_var1, align 8
+  br label %panic_block6
+
+after_check5:                                     ; preds = %noerr_block
+  %3 = load i32, i32* %retparam2, align 4
+  br label %noerr_block7
+
+panic_block6:                                     ; preds = %assign_optional4
+  call void @std.core.builtin.panic(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.zstr.3, i64 0, i64 0), i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.zstr.4, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.zstr.5, i64 0, i64 0), i32 52)
+  unreachable
+
+noerr_block7:                                     ; preds = %after_check5
+  %4 = call i64 @test.test6(i32* %retparam9, i32 1)
+  %not_err10 = icmp eq i64 %4, 0
+  br i1 %not_err10, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %noerr_block7
+  store i64 %4, i64* %error_var8, align 8
+  br label %panic_block13
+
+after_check12:                                    ; preds = %noerr_block7
+  %5 = load i32, i32* %retparam9, align 4
+  br label %noerr_block14
+
+panic_block13:                                    ; preds = %assign_optional11
+  call void @std.core.builtin.panic(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.zstr.6, i64 0, i64 0), i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.zstr.7, i64 0, i64 0), i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.zstr.8, i64 0, i64 0), i32 53)
+  unreachable
+
+noerr_block14:                                    ; preds = %after_check12
+  %6 = call i64 @test.test2(i32* %retparam15, i32 3)
+  %not_err16 = icmp eq i64 %6, 0
+  br i1 %not_err16, label %after_check18, label %assign_optional17
+
+assign_optional17:                                ; preds = %noerr_block14
+  store i64 %6, i64* %i.f, align 8
+  br label %after_assign
+
+after_check18:                                    ; preds = %noerr_block14
+  %7 = load i32, i32* %retparam15, align 4
+  store i32 %7, i32* %i, align 4
+  store i64 0, i64* %i.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check18, %assign_optional17
+  ret void
+}
+
+
+define i32 @main(i32 %0, i8** %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
+
+declare void @std.core.builtin.panic(i8*, i8*, i8*, i32)
+
+attributes #0 = { nounwind }
\ No newline at end of file
diff --git a/test/test_suite7/expressions/parsed_numbers.c3t b/test/test_suite7/expressions/parsed_numbers.c3t
new file mode 100644
index 000000000..07d14a802
--- /dev/null
+++ b/test/test_suite7/expressions/parsed_numbers.c3t
@@ -0,0 +1,14 @@
+// #target: macos-x64
+module numbers;
+
+double a = 0x1.1p+1;
+double b = -12.3e-12;
+double c = 0x1.1p-1;
+double d = 12.3e+12;
+
+/* #expect: numbers.ll
+
+@numbers.a = local_unnamed_addr global double 2.125000e+00, align 8
+@numbers.b = local_unnamed_addr global double -1.230000e-11, align 8
+@numbers.c = local_unnamed_addr global double 5.312500e-01, align 8
+@numbers.d = local_unnamed_addr global double 1.230000e+13, align 8
\ No newline at end of file
diff --git a/test/test_suite7/expressions/plus_int.c3 b/test/test_suite7/expressions/plus_int.c3
new file mode 100644
index 000000000..7ebebcf46
--- /dev/null
+++ b/test/test_suite7/expressions/plus_int.c3
@@ -0,0 +1,27 @@
+fn void test1()
+{
+    short! a = 1;
+    @ok(+a);
+    short b = +a; // #error: 'short!' to 'short'.
+}
+
+fn void test2()
+{
+    int! a = 1;
+    @ok(+a);
+    int b = +a; // #error: 'int!' to 'int'
+}
+
+fn void test3()
+{
+    long! a = 1;
+    @ok(+a);
+    long b = +a; // #error: 'long!' to 'long'
+}
+
+
+fn void test4()
+{
+	int a = 1;
+	+a = 3; // #error: An assignable expression
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/pointer_access.c3t b/test/test_suite7/expressions/pointer_access.c3t
new file mode 100644
index 000000000..27f3746cb
--- /dev/null
+++ b/test/test_suite7/expressions/pointer_access.c3t
@@ -0,0 +1,98 @@
+// #target: macos-x64
+extern fn void printf(char* c, ...);
+
+struct ExtraSimple
+{
+    int a;
+    int b;
+    struct c
+    {
+        double e;
+        double f0;
+        double f1;
+        double f;
+        double j;
+    }
+    struct
+    {
+        int r;
+        int s;
+    }
+    union
+    {
+        double o0;
+        int o1;
+    }
+    int g;
+}
+
+
+fn void testSimple()
+{
+    ExtraSimple a = { .c.j = 3.3 };
+    a.c.j = 3.4;
+    printf("a = %d, c.e = %f, c.f = %f, c.j = %f, g = %d, o0 = %f, r = %d, s = %d\n", a.a, a.c.e, a.c.f, a.c.j, a.g, a.o0, a.r, a.s);
+}
+
+// TODO these may be wrong.
+/* #expect: pointer_access.ll
+
+%ExtraSimple = type { i32, i32, %c, %.anon, %.anon.0, i32 }
+%c = type { double, double, double, double, double }
+%.anon = type { i32, i32 }
+%.anon.0 = type { double }
+
+@"$ct.pointer_access.c" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 40, i64 0, i64 5, [0 x i64] zeroinitializer }, align 8
+@"$ct.pointer_access.$anon" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.pointer_access.$anon.4" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.pointer_access.ExtraSimple" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 72, i64 0, i64 6, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [71 x i8] c"a = %d, c.e = %f, c.f = %f, c.j = %f, g = %d, o0 = %f, r = %d, s = %d\0A\00", align 1
+
+define void @pointer_access.testSimple() #0 {
+entry:
+  %a = alloca %ExtraSimple, align 8
+  store i32 0, ptr %a, align 8
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %a, i64 8
+  store double 0.000000e+00, ptr %ptradd1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %ptradd1, i64 8
+  store double 0.000000e+00, ptr %ptradd2, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %ptradd1, i64 16
+  store double 0.000000e+00, ptr %ptradd3, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %ptradd1, i64 24
+  store double 0.000000e+00, ptr %ptradd4, align 8
+  %ptradd5 = getelementptr inbounds i8, ptr %ptradd1, i64 32
+  store double 3.300000e+00, ptr %ptradd5, align 8
+  %ptradd6 = getelementptr inbounds i8, ptr %a, i64 48
+  store i32 0, ptr %ptradd6, align 8
+  %ptradd7 = getelementptr inbounds i8, ptr %ptradd6, i64 4
+  store i32 0, ptr %ptradd7, align 4
+  %ptradd8 = getelementptr inbounds i8, ptr %a, i64 56
+  call void @llvm.memset.p0.i64(ptr align 8 %ptradd8, i8 0, i64 8, i1 false)
+  %ptradd9 = getelementptr inbounds i8, ptr %a, i64 64
+  store i32 0, ptr %ptradd9, align 8
+  %ptradd10 = getelementptr inbounds i8, ptr %a, i64 8
+  %ptradd11 = getelementptr inbounds i8, ptr %ptradd10, i64 32
+  store double 3.400000e+00, ptr %ptradd11, align 8
+  %ptradd12 = getelementptr inbounds i8, ptr %a, i64 8
+  %ptradd13 = getelementptr inbounds i8, ptr %a, i64 8
+  %ptradd14 = getelementptr inbounds i8, ptr %ptradd13, i64 24
+  %ptradd15 = getelementptr inbounds i8, ptr %a, i64 8
+  %ptradd16 = getelementptr inbounds i8, ptr %ptradd15, i64 32
+  %ptradd17 = getelementptr inbounds i8, ptr %a, i64 64
+  %ptradd18 = getelementptr inbounds i8, ptr %a, i64 56
+  %ptradd19 = getelementptr inbounds i8, ptr %a, i64 48
+  %ptradd20 = getelementptr inbounds i8, ptr %a, i64 48
+  %ptradd21 = getelementptr inbounds i8, ptr %ptradd20, i64 4
+  %0 = load i32, ptr %a, align 8
+  %1 = load double, ptr %ptradd12, align 8
+  %2 = load double, ptr %ptradd14, align 8
+  %3 = load double, ptr %ptradd16, align 8
+  %4 = load i32, ptr %ptradd17, align 8
+  %5 = load double, ptr %ptradd18, align 8
+  %6 = load i32, ptr %ptradd19, align 8
+  %7 = load i32, ptr %ptradd21, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %0, double %1, double %2, double %3, i32 %4, double %5, i32 %6, i32 %7)
+  ret void
+}
diff --git a/test/test_suite7/expressions/pointer_arith.c3 b/test/test_suite7/expressions/pointer_arith.c3
new file mode 100644
index 000000000..2338aa493
--- /dev/null
+++ b/test/test_suite7/expressions/pointer_arith.c3
@@ -0,0 +1,18 @@
+fn void test1(ichar* cp)
+{
+    int a = 10;
+
+    ichar* cp2 = cp - 10;
+    ichar* cp3 = cp + 10;
+    cp2 -= 10;
+    cp2 -= a;
+    cp3 += 10;
+    cp3 += a;
+    ichar* cp4 = cp - a;
+    cp2 - cp3;
+}
+fn void test2(ichar* cp)
+{
+    cp + 1;
+    cp * 1.0; // #error: 'ichar*' by 'double'
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/pointer_conv_error.c3 b/test/test_suite7/expressions/pointer_conv_error.c3
new file mode 100644
index 000000000..c742f8dde
--- /dev/null
+++ b/test/test_suite7/expressions/pointer_conv_error.c3
@@ -0,0 +1,18 @@
+fn void test1()
+{
+    int myInt = 1;
+    int* p1 = myInt;                    // #error: integer smaller
+}
+
+fn void test2()
+{
+    uint myUInt = 1;
+    int* p2 = myUInt;                   // #error: integer smaller
+}
+
+fn void test3()
+{
+    uint myUInt = 1;
+    int* p2 = (int*)(myUInt);       // #error: integer smaller
+}
+
diff --git a/test/test_suite7/expressions/pointer_to_bool.c3 b/test/test_suite7/expressions/pointer_to_bool.c3
new file mode 100644
index 000000000..fcdf1292d
--- /dev/null
+++ b/test/test_suite7/expressions/pointer_to_bool.c3
@@ -0,0 +1,9 @@
+struct Struct
+{
+    char* ptr;
+}
+
+fn void test1(Struct* s)
+{
+    if (s.ptr) {}
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/rvalues.c3 b/test/test_suite7/expressions/rvalues.c3
new file mode 100644
index 000000000..fd4d9c237
--- /dev/null
+++ b/test/test_suite7/expressions/rvalues.c3
@@ -0,0 +1,16 @@
+macro void hello($bar)
+{
+    $bar;
+}
+const FOO = 1 + 2;
+fn void test()
+{
+    var $Foo = int;
+    var $Bar = $Foo;
+    $Bar x;
+    hello(1);
+    var $foo = 1;
+    $foo;
+    FOO;
+}
+
diff --git a/test/test_suite7/expressions/simple_float_sub_neg.c3t b/test/test_suite7/expressions/simple_float_sub_neg.c3t
new file mode 100644
index 000000000..42dd58228
--- /dev/null
+++ b/test/test_suite7/expressions/simple_float_sub_neg.c3t
@@ -0,0 +1,18 @@
+// #target: macos-x64
+module simple_float_sub_neg;
+
+fn double test(double a, double b, double c, double d)
+{
+  return -(a-b) - (c-d);
+}
+
+/* #expect: simple_float_sub_neg.ll
+
+define double @simple_float_sub_neg.test(double %0, double %1, double %2, double %3) #0 {
+entry:
+  %fsub = fsub double %0, %1
+  %fneg = fneg double %fsub
+  %fsub1 = fsub double %2, %3
+  %fsub2 = fsub double %fneg, %fsub1
+  ret double %fsub2
+}
diff --git a/test/test_suite7/expressions/strings.c3t b/test/test_suite7/expressions/strings.c3t
new file mode 100644
index 000000000..5443c01bd
--- /dev/null
+++ b/test/test_suite7/expressions/strings.c3t
@@ -0,0 +1,11 @@
+// #target: macos-x64
+module test;
+
+fn char* foo()
+{
+  return "*** Word \"%s\" on line %d is not" "" "";
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [32 x i8] c"*** Word \22%s\22 on line %d is not\00"
\ No newline at end of file
diff --git a/test/test_suite7/expressions/take_address.c3t b/test/test_suite7/expressions/take_address.c3t
new file mode 100644
index 000000000..920a9c6b5
--- /dev/null
+++ b/test/test_suite7/expressions/take_address.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module testing;
+import blurb;
+import foo;
+
+def hello_int = foo::hello(<int>);
+
+fn void main()
+{
+	blurb::test(&hello_int);
+}
+
+module foo(<Type>);
+
+fn void hello() {}
+
+module blurb;
+
+def Foo = fn void();
+def Bar = fn void();
+
+fn void test(Foo x) {}
+
+/* #expect: testing.ll
+
+define void @testing.main() #0 {
+entry:
+  call void @blurb.test(ptr @"foo$int$.hello")
+  ret void
+}
diff --git a/test/test_suite7/expressions/ternary_bool.c3t b/test/test_suite7/expressions/ternary_bool.c3t
new file mode 100644
index 000000000..568f46535
--- /dev/null
+++ b/test/test_suite7/expressions/ternary_bool.c3t
@@ -0,0 +1,103 @@
+// #target: macos-x64
+
+extern fn void printf(char *, ...);
+
+fn void main()
+{
+
+    bool b = true;
+    bool* c = &b;
+    if (*c ? *c : *c) printf("Woa!\n");
+    if (b ? b : b) printf("Woa!\n");
+    if (*c ?: *c) printf("Woa!\n");
+    if (b ?: b) printf("Woa!\n");
+}
+
+/* #expect: ternary_bool.ll
+
+define void @ternary_bool.main() #0 {
+entry:
+  %b = alloca i8, align 1
+  %c = alloca ptr, align 8
+  store i8 1, ptr %b, align 1
+  store ptr %b, ptr %c, align 8
+  %0 = load ptr, ptr %c, align 8
+  %1 = load i8, ptr %0, align 1
+  %2 = trunc i8 %1 to i1
+  br i1 %2, label %cond.lhs, label %cond.rhs
+cond.lhs:                                         ; preds = %entry
+  %3 = load ptr, ptr %c, align 8
+  %4 = load i8, ptr %3, align 1
+  %5 = trunc i8 %4 to i1
+  br label %cond.phi
+cond.rhs:                                         ; preds = %entry
+  %6 = load ptr, ptr %c, align 8
+  %7 = load i8, ptr %6, align 1
+  %8 = trunc i8 %7 to i1
+  br label %cond.phi
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi i1 [ %5, %cond.lhs ], [ %8, %cond.rhs ]
+  br i1 %val, label %if.then, label %if.exit
+if.then:                                          ; preds = %cond.phi
+  call void (ptr, ...) @printf(ptr @.str)
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %cond.phi
+  %9 = load i8, ptr %b, align 1
+  %10 = trunc i8 %9 to i1
+  br i1 %10, label %cond.lhs1, label %cond.rhs2
+cond.lhs1:                                        ; preds = %if.exit
+  %11 = load i8, ptr %b, align 1
+  %12 = trunc i8 %11 to i1
+  br label %cond.phi3
+cond.rhs2:                                        ; preds = %if.exit
+  %13 = load i8, ptr %b, align 1
+  %14 = trunc i8 %13 to i1
+  br label %cond.phi3
+cond.phi3:                                        ; preds = %cond.rhs2, %cond.lhs1
+  %val4 = phi i1 [ %12, %cond.lhs1 ], [ %14, %cond.rhs2 ]
+  br i1 %val4, label %if.then5, label %if.exit6
+if.then5:                                         ; preds = %cond.phi3
+  call void (ptr, ...) @printf(ptr @.str.1)
+  br label %if.exit6
+if.exit6:                                         ; preds = %if.then5, %cond.phi3
+  %15 = load ptr, ptr %c, align 8
+  %16 = load i8, ptr %15, align 1
+  %17 = trunc i8 %16 to i1
+  br i1 %17, label %cond.lhs7, label %cond.rhs8
+cond.lhs7:                                        ; preds = %if.exit6
+  br label %cond.phi9
+cond.rhs8:                                        ; preds = %if.exit6
+  %18 = load ptr, ptr %c, align 8
+  %19 = load i8, ptr %18, align 1
+  %20 = trunc i8 %19 to i1
+  br label %cond.phi9
+cond.phi9:                                        ; preds = %cond.rhs8, %cond.lhs7
+  %val10 = phi i1 [ %17, %cond.lhs7 ], [ %20, %cond.rhs8 ]
+  br i1 %val10, label %if.then11, label %if.exit12
+if.then11:                                        ; preds = %cond.phi9
+  call void (ptr, ...) @printf(ptr @.str.2)
+  br label %if.exit12
+if.exit12:                                        ; preds = %if.then11, %cond.phi9
+  %21 = load i8, ptr %b, align 1
+  %22 = trunc i8 %21 to i1
+  br i1 %22, label %cond.lhs13, label %cond.rhs14
+
+cond.lhs13:                                       ; preds = %if.exit12
+  br label %cond.phi15
+
+cond.rhs14:                                       ; preds = %if.exit12
+  %23 = load i8, ptr %b, align 1
+  %24 = trunc i8 %23 to i1
+  br label %cond.phi15
+
+cond.phi15:                                       ; preds = %cond.rhs14, %cond.lhs13
+  %val16 = phi i1 [ %22, %cond.lhs13 ], [ %24, %cond.rhs14 ]
+  br i1 %val16, label %if.then17, label %if.exit18
+
+if.then17:                                        ; preds = %cond.phi15
+  call void (ptr, ...) @printf(ptr @.str.3)
+  br label %if.exit18
+
+if.exit18:                                        ; preds = %if.then17, %cond.phi15
+  ret void
+}
diff --git a/test/test_suite7/expressions/ternary_infer.c3t b/test/test_suite7/expressions/ternary_infer.c3t
new file mode 100644
index 000000000..f29b7dde6
--- /dev/null
+++ b/test/test_suite7/expressions/ternary_infer.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module test;
+fn int[<2>] foo(int x)
+{
+  return x > 0 ? {0, 0} : {255, 255};
+}
+
+
+fn int main()
+{
+  return 0;
+}
+/* #expect: test.ll
+
+define double @test.foo(i32 %0) #0 {
+entry:
+  %taddr = alloca <2 x i32>, align 8
+  %gt = icmp sgt i32 %0, 0
+  %ternary = select i1 %gt, <2 x i32> zeroinitializer, <2 x i32>
+  store <2 x i32> %ternary, ptr %taddr, align 8
+  %1 = load double, ptr %taddr, align 8
+  ret double %1
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/ternary_no_ident.c3 b/test/test_suite7/expressions/ternary_no_ident.c3
new file mode 100644
index 000000000..dbd2e7457
--- /dev/null
+++ b/test/test_suite7/expressions/ternary_no_ident.c3
@@ -0,0 +1,14 @@
+fn void test1()
+{
+    int a = (i ? 1 : 1); // #error: 'i' could not be found, did you spell it right
+}
+
+fn void test2()
+{
+    int a = (1 ? i : 2); // #error: 'i' could not be found, did you spell it right
+}
+
+fn void test3()
+{
+    int a = (1 ? 2 : i); // #error: 'i' could not be found, did you spell it right
+}
diff --git a/test/test_suite7/expressions/ternary_void.c3t b/test/test_suite7/expressions/ternary_void.c3t
new file mode 100644
index 000000000..91f1d60f8
--- /dev/null
+++ b/test/test_suite7/expressions/ternary_void.c3t
@@ -0,0 +1,31 @@
+// #target: macos-x64
+module test;
+
+fn void foo() {  }
+fn void bar() {}
+
+fn void main()
+{
+    bool b = true;
+    true ? foo() : bar(); // ok
+    b ? foo() : bar(); // segfault
+}
+
+/* #expect: test.ll
+
+entry:
+  %b = alloca i8, align 1
+  store i8 1, ptr %b, align 1
+  call void @test.foo()
+  %0 = load i8, ptr %b, align 1
+  %1 = trunc i8 %0 to i1
+  br i1 %1, label %cond.lhs, label %cond.rhs
+cond.lhs:                                         ; preds = %entry
+  call void @test.foo()
+  br label %cond.phi
+cond.rhs:                                         ; preds = %entry
+  call void @test.bar()
+  br label %cond.phi
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  ret void
+}
diff --git a/test/test_suite7/expressions/test_ct_param_bug.c3 b/test/test_suite7/expressions/test_ct_param_bug.c3
new file mode 100644
index 000000000..c8c19cf25
--- /dev/null
+++ b/test/test_suite7/expressions/test_ct_param_bug.c3
@@ -0,0 +1,7 @@
+module test;
+macro @foo($aaa) {}
+fn int main(String[] args)
+{
+    @foo(int); // #error: must be followed by either
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/type_support.c3t b/test/test_suite7/expressions/type_support.c3t
new file mode 100644
index 000000000..3c7e130c4
--- /dev/null
+++ b/test/test_suite7/expressions/type_support.c3t
@@ -0,0 +1,76 @@
+// #target: macos-x64
+
+module test;
+import std::io;
+
+macro print_type_info(...)
+{
+    $for (var $i = 0; $i < $vacount; $i++)
+        io::printfn("type: %s", $vatype[$i].nameof);
+        io::printfn("%s.sizeof = %d", $vatype[$i].nameof, $vatype[$i].sizeof);
+        io::printfn("%s.min = %s", $vatype[$i].nameof, $vatype[$i].min);
+        io::printfn("%s.max = %s\n", $vatype[$i].nameof, $vatype[$i].max);
+    $endfor;
+}
+
+fn void main()
+{
+    io::printfn("Unsigned integers:");
+    print_type_info(char, ushort, uint, ulong, uptr, usz, usz);
+    io::printfn("Signed integers:");
+    print_type_info(ichar, short, int, long, iptr, isz, isz);
+    io::printfn("Floats:");
+    print_type_info(float, double);
+}
+
+/* #expect: test.ll
+
+  i64 0
+  i64 1
+  i8 0
+  i8 -1
+  i16 0
+  i16 -1
+  i64 4
+  i64 2
+  i32 0
+  i32 -1
+  i64 8
+  i64 0
+  i64 -1
+  i64 8
+  i64 0
+  i64 -1
+  i64 8
+  i64 0
+  i64 -1
+  i64 8
+  i64 0
+  i64 -1
+  i64 1
+  i8 -128
+  i8 127
+  i64 2
+  i16 -32768
+  i16 32767
+  i64 4
+  i32 -2147483648
+  i32 2147483647
+  i64 8
+  i64 -9223372036854775808
+  i64 9223372036854775807
+  i64 8
+  i64 -9223372036854775808
+  i64 9223372036854775807
+  i64 8
+  i64 -9223372036854775808
+  i64 9223372036854775807
+  i64 8
+  i64 -9223372036854775808
+  i64 9223372036854775807
+  i64 4
+  float 0xC7EFFFFFE0000000
+  float 0x47EFFFFFE0000000
+  i64 8
+  double 0xFFEFFFFFFFFFFFFF
+  double 0x7FEFFFFFFFFFFFFF
\ No newline at end of file
diff --git a/test/test_suite7/expressions/underscore_errors.c3 b/test/test_suite7/expressions/underscore_errors.c3
new file mode 100644
index 000000000..e9038815c
--- /dev/null
+++ b/test/test_suite7/expressions/underscore_errors.c3
@@ -0,0 +1,15 @@
+fn void main()
+{
+	int a = 1___0; // #error: consecutive
+	int a = 1_0;
+	float b = 1_0.3__4; // #error: consecutive
+	float b = 1_0.3_4;
+	int a2 = 0x1___0; // #error: consecutive
+	int a2 = 0x1_0;
+	float b2 = 0x1_0.3__4; // #error: consecutive
+	float b2 = 0x1_0.3_4;
+	int a3 = 0b1___0; // #error: consecutive
+	int a3 = 0b1_0;
+	int a3 = 0o1___0; // #error: consecutive
+	int a3 = 0o1_0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/unsafe_comparisons.c3 b/test/test_suite7/expressions/unsafe_comparisons.c3
new file mode 100644
index 000000000..8f4bad071
--- /dev/null
+++ b/test/test_suite7/expressions/unsafe_comparisons.c3
@@ -0,0 +1,51 @@
+module test;
+
+fn bool test1(uint x)
+{
+    return x < 0; // #error: Comparing 'unsigned expression < 0' can never be true
+}
+
+fn bool test2(uint x)
+{
+    return x <= 0; // #error: 'unsigned expression <= 0' is the same as expr == 0
+}
+
+fn bool test22(uint x)
+{
+    return x >= 0; // #error: 'unsigned expression >= 0'
+}
+
+fn bool test3(uint x)
+{
+    return x == -1; // #error: Comparing an unsigned value with a negative constant
+}
+
+fn bool test4(uint x)
+{
+    return 0 > x ; // #error: '0 > unsigned expression' can never be true
+}
+
+fn bool test5(uint x)
+{
+    return 0 >= x; // #error: '0 >= unsigned expression' is the same as 0 == expr
+}
+
+fn bool test55(uint x)
+{
+    return 0 <= x; // #error: '0 <= unsigned expression'
+}
+
+fn bool test6(uint x)
+{
+    return -1 == x; // #error: an unsigned value with a negative constant
+}
+
+macro obfuscate(x, $foo)
+{
+    return $foo == x;
+}
+
+fn bool test7(uint x)
+{
+    return obfuscate(x, -1);
+}
\ No newline at end of file
diff --git a/test/test_suite7/expressions/void_arg.c3 b/test/test_suite7/expressions/void_arg.c3
new file mode 100644
index 000000000..b6f7b474f
--- /dev/null
+++ b/test/test_suite7/expressions/void_arg.c3
@@ -0,0 +1,33 @@
+import std::io;
+
+fn void test1()
+{
+	foo(test1()); // #error: A 'void' value cannot be passed as a parameter
+}
+
+fn void test2()
+{
+	bar(test2()); // #error: You cannot cast 'void' to 'int'
+}
+
+fn void test3()
+{
+	baz(test3()); // #error: A value of type 'void' cannot be passed as a raw variadic argumen
+}
+
+fn void test4()
+{
+	abc(test4());
+}
+
+macro void abc(...) {}
+
+extern fn void baz(...);
+
+macro void foo(x)
+{
+}
+
+fn void bar(int x)
+{}
+
diff --git a/test/test_suite7/floats/convert_float.c3t b/test/test_suite7/floats/convert_float.c3t
new file mode 100644
index 000000000..cb06a173e
--- /dev/null
+++ b/test/test_suite7/floats/convert_float.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module foo;
+
+fn void test()
+{
+	float x = 12;
+	x *= -1;
+	double y = x;
+}
+
+/* #expect: foo.ll
+define void @foo.test() #0 {
+entry:
+  %x = alloca float, align 4
+  %y = alloca double, align 8
+  store float 1.200000e+01, ptr %x, align 4
+  %0 = load float, ptr %x, align 4
+  %fmul = fmul float %0, -1.000000e+00
+  store float %fmul, ptr %x, align 4
+  %1 = load float, ptr %x, align 4
+  %fpfpext = fpext float %1 to double
+  store double %fpfpext, ptr %y, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/floats/explicit_float_truncation_needed.c3 b/test/test_suite7/floats/explicit_float_truncation_needed.c3
new file mode 100644
index 000000000..72774ec8c
--- /dev/null
+++ b/test/test_suite7/floats/explicit_float_truncation_needed.c3
@@ -0,0 +1,4 @@
+fn void test()
+{
+    float x = 0x7FFFFFFFFFFF.0p+400; // #error: The value '3.63419e+134' is out of range for 'float'
+}
\ No newline at end of file
diff --git a/test/test_suite7/floats/float_exceeding_size.c3 b/test/test_suite7/floats/float_exceeding_size.c3
new file mode 100644
index 000000000..88867f28f
--- /dev/null
+++ b/test/test_suite7/floats/float_exceeding_size.c3
@@ -0,0 +1,5 @@
+fn void test()
+{
+    float x = 0x7FFFFFFFFFFF.0p+40000; // #error: The float value is out of range.
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/floats/inf_nan.c3t b/test/test_suite7/floats/inf_nan.c3t
new file mode 100644
index 000000000..a0c712bc7
--- /dev/null
+++ b/test/test_suite7/floats/inf_nan.c3t
@@ -0,0 +1,26 @@
+module fe;
+
+fn void main()
+{
+    float z = float.inf + 100;
+    double z2 = double.inf;
+    float g = float.nan;
+    double g2 = double.nan;
+    double x = (double)(z);
+}
+
+/* #expect: fe.ll
+
+  %z = alloca float, align 4
+  %z2 = alloca double, align 8
+  %g = alloca float, align 4
+  %g2 = alloca double, align 8
+  %x = alloca double, align 8
+  store float 0x7FF0000000000000, ptr %z, align 4
+  store double 0x7FF0000000000000, ptr %z2, align 8
+  store float 0x7FF8000000000000, ptr %g, align 4
+  store double 0x7FF8000000000000, ptr %g2, align 8
+  %0 = load float, ptr %z, align 4
+  %fpfpext = fpext float %0 to double
+  store double %fpfpext, ptr %x, align 8
+  ret void
\ No newline at end of file
diff --git a/test/test_suite7/floats/mod.c3t b/test/test_suite7/floats/mod.c3t
new file mode 100644
index 000000000..54762f05a
--- /dev/null
+++ b/test/test_suite7/floats/mod.c3t
@@ -0,0 +1,14 @@
+// #target: macos-x64
+
+fn double x(double a, double b)
+{
+	return a % b;
+}
+
+/* #expect: mod.ll
+
+define double @mod.x(double %0, double %1) #0 {
+entry:
+  %fmod = frem double %0, %1
+  ret double %fmod
+}
\ No newline at end of file
diff --git a/test/test_suite7/from_docs/examples_defer.c3t b/test/test_suite7/from_docs/examples_defer.c3t
new file mode 100644
index 000000000..d634771af
--- /dev/null
+++ b/test/test_suite7/from_docs/examples_defer.c3t
@@ -0,0 +1,253 @@
+// #target: macos-x64
+module defer1;
+import std::io;
+
+fn void test(int x)
+{
+    defer io::printn();
+    defer io::print("A");
+    if (x == 1) return;
+    {
+        defer io::print("B");
+        if (x == 0) return;
+    }
+    io::print("!");
+}
+
+fn void main()
+{
+    test(1); // Prints "A"
+    test(0); // Prints "BA"
+    test(10); // Prints "B!A"
+}
+
+/* #expect: defer1.ll
+
+define void @defer1.test(i32 %0) #0 {
+entry:
+  %retparam = alloca i64, align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam2 = alloca i64, align 8
+  %error_var3 = alloca i64, align 8
+  %error_var9 = alloca i64, align 8
+  %retparam17 = alloca i64, align 8
+  %retparam20 = alloca i64, align 8
+  %len23 = alloca i64, align 8
+  %error_var24 = alloca i64, align 8
+  %retparam26 = alloca i64, align 8
+  %error_var32 = alloca i64, align 8
+  %error_var38 = alloca i64, align 8
+  %retparam47 = alloca i64, align 8
+  %retparam50 = alloca i64, align 8
+  %retparam53 = alloca i64, align 8
+  %len56 = alloca i64, align 8
+  %error_var57 = alloca i64, align 8
+  %retparam59 = alloca i64, align 8
+  %error_var65 = alloca i64, align 8
+  %error_var71 = alloca i64, align 8
+  %eq = icmp eq i32 %0, 1
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str, i64 1)
+  %3 = call ptr @std.io.stdout()
+  %4 = call i64 @std.io.File.write(ptr %retparam2, ptr %3, ptr null, i64 0)
+  %not_err = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %5, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %if.then
+  store i64 %4, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %if.then
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %6 = load i64, ptr %retparam2, align 8
+  store i64 %6, ptr %len, align 8
+  %7 = call i64 @std.io.File.write_byte(ptr %3, i8 zeroext 10)
+  %not_err4 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err4, i1 true)
+  br i1 %8, label %after_check6, label %assign_optional5
+
+assign_optional5:                                 ; preds = %noerr_block
+  store i64 %7, ptr %error_var3, align 8
+  br label %guard_block7
+
+after_check6:                                     ; preds = %noerr_block
+  br label %noerr_block8
+
+guard_block7:                                     ; preds = %assign_optional5
+  br label %voiderr
+
+noerr_block8:                                     ; preds = %after_check6
+  %9 = call i64 @std.io.File.flush(ptr %3)
+  %not_err10 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %10, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %noerr_block8
+  store i64 %9, ptr %error_var9, align 8
+  br label %guard_block13
+
+after_check12:                                    ; preds = %noerr_block8
+  br label %noerr_block14
+
+guard_block13:                                    ; preds = %assign_optional11
+  br label %voiderr
+
+noerr_block14:                                    ; preds = %after_check12
+  %11 = load i64, ptr %len, align 8
+  %add = add i64 %11, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block14, %guard_block13, %guard_block7, %guard_block
+  ret void
+
+if.exit:                                          ; preds = %entry
+  %eq15 = icmp eq i32 %0, 0
+  br i1 %eq15, label %if.then16, label %if.exit46
+
+if.then16:                                        ; preds = %if.exit
+  %12 = call ptr @std.io.stdout()
+  %13 = call i64 @std.io.File.write(ptr %retparam17, ptr %12, ptr @.str.1, i64 1)
+  %14 = call ptr @std.io.stdout()
+  %15 = call i64 @std.io.File.write(ptr %retparam20, ptr %14, ptr @.str.2, i64 1)
+  %16 = call ptr @std.io.stdout()
+  %17 = call i64 @std.io.File.write(ptr %retparam26, ptr %16, ptr null, i64 0)
+  %not_err27 = icmp eq i64 %17, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err27, i1 true)
+  br i1 %18, label %after_check29, label %assign_optional28
+
+assign_optional28:                                ; preds = %if.then16
+  store i64 %17, ptr %error_var24, align 8
+  br label %guard_block30
+
+after_check29:                                    ; preds = %if.then16
+  br label %noerr_block31
+
+guard_block30:                                    ; preds = %assign_optional28
+  br label %voiderr45
+
+noerr_block31:                                    ; preds = %after_check29
+  %19 = load i64, ptr %retparam26, align 8
+  store i64 %19, ptr %len23, align 8
+  %20 = call i64 @std.io.File.write_byte(ptr %16, i8 zeroext 10)
+  %not_err33 = icmp eq i64 %20, 0
+  %21 = call i1 @llvm.expect.i1(i1 %not_err33, i1 true)
+  br i1 %21, label %after_check35, label %assign_optional34
+
+assign_optional34:                                ; preds = %noerr_block31
+  store i64 %20, ptr %error_var32, align 8
+  br label %guard_block36
+
+after_check35:                                    ; preds = %noerr_block31
+  br label %noerr_block37
+
+guard_block36:                                    ; preds = %assign_optional34
+  br label %voiderr45
+
+noerr_block37:                                    ; preds = %after_check35
+  %22 = call i64 @std.io.File.flush(ptr %16)
+  %not_err39 = icmp eq i64 %22, 0
+  %23 = call i1 @llvm.expect.i1(i1 %not_err39, i1 true)
+  br i1 %23, label %after_check41, label %assign_optional40
+
+assign_optional40:                                ; preds = %noerr_block37
+  store i64 %22, ptr %error_var38, align 8
+  br label %guard_block42
+
+after_check41:                                    ; preds = %noerr_block37
+  br label %noerr_block43
+
+guard_block42:                                    ; preds = %assign_optional40
+  br label %voiderr45
+
+noerr_block43:                                    ; preds = %after_check41
+  %24 = load i64, ptr %len23, align 8
+  %add44 = add i64 %24, 1
+  br label %voiderr45
+
+voiderr45:                                        ; preds = %noerr_block43, %guard_block42, %guard_block36, %guard_block30
+  ret void
+
+if.exit46:                                        ; preds = %if.exit
+  %25 = call ptr @std.io.stdout()
+  %26 = call i64 @std.io.File.write(ptr %retparam47, ptr %25, ptr @.str.3, i64 1)
+  %27 = call ptr @std.io.stdout()
+  %28 = call i64 @std.io.File.write(ptr %retparam50, ptr %27, ptr @.str.4, i64 1)
+  %29 = call ptr @std.io.stdout()
+  %30 = call i64 @std.io.File.write(ptr %retparam53, ptr %29, ptr @.str.5, i64 1)
+  %31 = call ptr @std.io.stdout()
+  %32 = call i64 @std.io.File.write(ptr %retparam59, ptr %31, ptr null, i64 0)
+  %not_err60 = icmp eq i64 %32, 0
+  %33 = call i1 @llvm.expect.i1(i1 %not_err60, i1 true)
+  br i1 %33, label %after_check62, label %assign_optional61
+
+assign_optional61:                                ; preds = %if.exit46
+  store i64 %32, ptr %error_var57, align 8
+  br label %guard_block63
+
+after_check62:                                    ; preds = %if.exit46
+  br label %noerr_block64
+
+guard_block63:                                    ; preds = %assign_optional61
+  br label %voiderr78
+
+noerr_block64:                                    ; preds = %after_check62
+  %34 = load i64, ptr %retparam59, align 8
+  store i64 %34, ptr %len56, align 8
+  %35 = call i64 @std.io.File.write_byte(ptr %31, i8 zeroext 10)
+  %not_err66 = icmp eq i64 %35, 0
+  %36 = call i1 @llvm.expect.i1(i1 %not_err66, i1 true)
+  br i1 %36, label %after_check68, label %assign_optional67
+
+assign_optional67:                                ; preds = %noerr_block64
+  store i64 %35, ptr %error_var65, align 8
+  br label %guard_block69
+
+after_check68:                                    ; preds = %noerr_block64
+  br label %noerr_block70
+
+guard_block69:                                    ; preds = %assign_optional67
+  br label %voiderr78
+
+noerr_block70:                                    ; preds = %after_check68
+  %37 = call i64 @std.io.File.flush(ptr %31)
+  %not_err72 = icmp eq i64 %37, 0
+  %38 = call i1 @llvm.expect.i1(i1 %not_err72, i1 true)
+  br i1 %38, label %after_check74, label %assign_optional73
+
+assign_optional73:                                ; preds = %noerr_block70
+  store i64 %37, ptr %error_var71, align 8
+  br label %guard_block75
+
+after_check74:                                    ; preds = %noerr_block70
+  br label %noerr_block76
+
+guard_block75:                                    ; preds = %assign_optional73
+  br label %voiderr78
+
+noerr_block76:                                    ; preds = %after_check74
+  %39 = load i64, ptr %len56, align 8
+  %add77 = add i64 %39, 1
+  br label %voiderr78
+
+voiderr78:                                        ; preds = %noerr_block76, %guard_block75, %guard_block69, %guard_block63
+  ret void
+}
+
+
+define void @defer1.main() #0 {
+entry:
+  call void @defer1.test(i32 1)
+  call void @defer1.test(i32 0)
+  call void @defer1.test(i32 10)
+  ret void
+}
diff --git a/test/test_suite7/from_docs/examples_forswitch.c3t b/test/test_suite7/from_docs/examples_forswitch.c3t
new file mode 100644
index 000000000..24ce59f90
--- /dev/null
+++ b/test/test_suite7/from_docs/examples_forswitch.c3t
@@ -0,0 +1,714 @@
+// #target: macos-x64
+module examples;
+import libc;
+import std::io;
+
+fn void example_for()
+{
+    // the for-loop is the same as C99.
+    for (int i = 0; i < 10; i++)
+    {
+        libc::printf("%d\n", i);
+    }
+
+    // also equal
+    for (;;)
+    {
+        // ..
+    }
+}
+
+enum Height : uint
+{
+    LOW,
+    MEDIUM,
+    HIGH,
+}
+
+fn void demo_enum(Height h)
+{
+    switch (h)
+    {
+        case LOW:
+        case MEDIUM:
+            io::printn("Not high");
+            // Implicit break.
+        case HIGH:
+            io::printn("High");
+    }
+
+    // This also works
+    switch (h)
+    {
+        case LOW:
+        case MEDIUM:
+            io::printn("Not high");
+            // Implicit break.
+        case Height.HIGH:
+            io::printn("High");
+    }
+
+    // Completely empty cases are not allowed.
+    switch (h)
+    {
+        case LOW:
+            break; // Explicit break required, since switches can't be empty.
+        case MEDIUM:
+            io::printn("Medium");
+        case HIGH:
+            break;
+    }
+
+    // special checking of switching on enum types
+    switch (h)
+    {
+        case LOW:
+        case MEDIUM:
+        case HIGH:
+            break;
+        default:    // warning: default label in switch which covers all enumeration value
+            break;
+    }
+
+    // Using "nextcase" will fallthrough to the next case statement,
+    // and each case statement starts its own scope.
+    switch (h)
+    {
+        case LOW:
+            int a = 1;
+            io::printn("A");
+            nextcase;
+        case MEDIUM:
+            int a = 2;
+            io::printn("B");
+            nextcase;
+        case HIGH:
+            // a is not defined here
+            io::printn("C");
+    }
+}
+/* #expect: examples.ll
+
+define void @examples.example_for() #0 {
+entry:
+  %i = alloca i32, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %0 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %0, 10
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i32, ptr %i, align 4
+  %2 = call i32 (ptr, ...) @printf(ptr @.str, i32 %1)
+  %3 = load i32, ptr %i, align 4
+  %add = add i32 %3, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %4 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %4(ptr @.panic_msg, i64 19, ptr @.file, i64 21, ptr @.func, i64 11, i32 14)
+  unreachable
+}
+
+
+define void @examples.demo_enum(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %len15 = alloca i64, align 8
+  %error_var16 = alloca i64, align 8
+  %retparam18 = alloca i64, align 8
+  %error_var24 = alloca i64, align 8
+  %error_var30 = alloca i64, align 8
+  %switch38 = alloca i32, align 4
+  %len41 = alloca i64, align 8
+  %error_var42 = alloca i64, align 8
+  %retparam44 = alloca i64, align 8
+  %error_var50 = alloca i64, align 8
+  %error_var56 = alloca i64, align 8
+  %len65 = alloca i64, align 8
+  %error_var66 = alloca i64, align 8
+  %retparam68 = alloca i64, align 8
+  %error_var74 = alloca i64, align 8
+  %error_var80 = alloca i64, align 8
+  %switch89 = alloca i32, align 4
+  %len93 = alloca i64, align 8
+  %error_var94 = alloca i64, align 8
+  %retparam96 = alloca i64, align 8
+  %error_var102 = alloca i64, align 8
+  %error_var108 = alloca i64, align 8
+  %switch118 = alloca i32, align 4
+  %switch122 = alloca i32, align 4
+  %a = alloca i32, align 4
+  %len125 = alloca i64, align 8
+  %error_var126 = alloca i64, align 8
+  %retparam128 = alloca i64, align 8
+  %error_var134 = alloca i64, align 8
+  %error_var140 = alloca i64, align 8
+  %a149 = alloca i32, align 4
+  %len150 = alloca i64, align 8
+  %error_var151 = alloca i64, align 8
+  %retparam153 = alloca i64, align 8
+  %error_var159 = alloca i64, align 8
+  %error_var165 = alloca i64, align 8
+  %len174 = alloca i64, align 8
+  %error_var175 = alloca i64, align 8
+  %retparam177 = alloca i64, align 8
+  %error_var183 = alloca i64, align 8
+  %error_var189 = alloca i64, align 8
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  switch i32 %1, label %switch.exit [
+    i32 0, label %switch.case
+    i32 1, label %switch.case
+    i32 2, label %switch.case14
+  ]
+
+switch.case:                                      ; preds = %switch.entry, %switch.entry
+  %2 = call ptr @std.io.stdout()
+  %3 = call i64 @std.io.File.write(ptr %retparam, ptr %2, ptr @.str.1, i64 8)
+  %not_err = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %4, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %switch.case
+  store i64 %3, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %switch.case
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %5 = load i64, ptr %retparam, align 8
+  store i64 %5, ptr %len, align 8
+  %6 = call i64 @std.io.File.write_byte(ptr %2, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %7, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %6, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %8 = call i64 @std.io.File.flush(ptr %2)
+  %not_err9 = icmp eq i64 %8, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %9, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %8, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %10 = load i64, ptr %len, align 8
+  %add = add i64 %10, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  br label %switch.exit
+
+switch.case14:                                    ; preds = %switch.entry
+  %11 = call ptr @std.io.stdout()
+  %12 = call i64 @std.io.File.write(ptr %retparam18, ptr %11, ptr @.str.2, i64 4)
+  %not_err19 = icmp eq i64 %12, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err19, i1 true)
+  br i1 %13, label %after_check21, label %assign_optional20
+
+assign_optional20:                                ; preds = %switch.case14
+  store i64 %12, ptr %error_var16, align 8
+  br label %guard_block22
+
+after_check21:                                    ; preds = %switch.case14
+  br label %noerr_block23
+
+guard_block22:                                    ; preds = %assign_optional20
+  br label %voiderr37
+
+noerr_block23:                                    ; preds = %after_check21
+  %14 = load i64, ptr %retparam18, align 8
+  store i64 %14, ptr %len15, align 8
+  %15 = call i64 @std.io.File.write_byte(ptr %11, i8 zeroext 10)
+  %not_err25 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err25, i1 true)
+  br i1 %16, label %after_check27, label %assign_optional26
+
+assign_optional26:                                ; preds = %noerr_block23
+  store i64 %15, ptr %error_var24, align 8
+  br label %guard_block28
+
+after_check27:                                    ; preds = %noerr_block23
+  br label %noerr_block29
+
+guard_block28:                                    ; preds = %assign_optional26
+  br label %voiderr37
+
+noerr_block29:                                    ; preds = %after_check27
+  %17 = call i64 @std.io.File.flush(ptr %11)
+  %not_err31 = icmp eq i64 %17, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %18, label %after_check33, label %assign_optional32
+
+assign_optional32:                                ; preds = %noerr_block29
+  store i64 %17, ptr %error_var30, align 8
+  br label %guard_block34
+
+after_check33:                                    ; preds = %noerr_block29
+  br label %noerr_block35
+
+guard_block34:                                    ; preds = %assign_optional32
+  br label %voiderr37
+
+noerr_block35:                                    ; preds = %after_check33
+  %19 = load i64, ptr %len15, align 8
+  %add36 = add i64 %19, 1
+  br label %voiderr37
+
+voiderr37:                                        ; preds = %noerr_block35, %guard_block34, %guard_block28, %guard_block22
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %voiderr37, %voiderr, %switch.entry
+  store i32 %0, ptr %switch38, align 4
+  br label %switch.entry39
+
+switch.entry39:                                   ; preds = %switch.exit
+  %20 = load i32, ptr %switch38, align 4
+  switch i32 %20, label %switch.exit88 [
+    i32 0, label %switch.case40
+    i32 1, label %switch.case40
+    i32 2, label %switch.case64
+  ]
+
+switch.case40:                                    ; preds = %switch.entry39, %switch.entry39
+  %21 = call ptr @std.io.stdout()
+  %22 = call i64 @std.io.File.write(ptr %retparam44, ptr %21, ptr @.str.3, i64 8)
+  %not_err45 = icmp eq i64 %22, 0
+  %23 = call i1 @llvm.expect.i1(i1 %not_err45, i1 true)
+  br i1 %23, label %after_check47, label %assign_optional46
+
+assign_optional46:                                ; preds = %switch.case40
+  store i64 %22, ptr %error_var42, align 8
+  br label %guard_block48
+
+after_check47:                                    ; preds = %switch.case40
+  br label %noerr_block49
+
+guard_block48:                                    ; preds = %assign_optional46
+  br label %voiderr63
+
+noerr_block49:                                    ; preds = %after_check47
+  %24 = load i64, ptr %retparam44, align 8
+  store i64 %24, ptr %len41, align 8
+  %25 = call i64 @std.io.File.write_byte(ptr %21, i8 zeroext 10)
+  %not_err51 = icmp eq i64 %25, 0
+  %26 = call i1 @llvm.expect.i1(i1 %not_err51, i1 true)
+  br i1 %26, label %after_check53, label %assign_optional52
+
+assign_optional52:                                ; preds = %noerr_block49
+  store i64 %25, ptr %error_var50, align 8
+  br label %guard_block54
+
+after_check53:                                    ; preds = %noerr_block49
+  br label %noerr_block55
+
+guard_block54:                                    ; preds = %assign_optional52
+  br label %voiderr63
+
+noerr_block55:                                    ; preds = %after_check53
+  %27 = call i64 @std.io.File.flush(ptr %21)
+  %not_err57 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err57, i1 true)
+  br i1 %28, label %after_check59, label %assign_optional58
+
+assign_optional58:                                ; preds = %noerr_block55
+  store i64 %27, ptr %error_var56, align 8
+  br label %guard_block60
+
+after_check59:                                    ; preds = %noerr_block55
+  br label %noerr_block61
+
+guard_block60:                                    ; preds = %assign_optional58
+  br label %voiderr63
+
+noerr_block61:                                    ; preds = %after_check59
+  %29 = load i64, ptr %len41, align 8
+  %add62 = add i64 %29, 1
+  br label %voiderr63
+
+voiderr63:                                        ; preds = %noerr_block61, %guard_block60, %guard_block54, %guard_block48
+  br label %switch.exit88
+
+switch.case64:                                    ; preds = %switch.entry39
+  %30 = call ptr @std.io.stdout()
+  %31 = call i64 @std.io.File.write(ptr %retparam68, ptr %30, ptr @.str.4, i64 4)
+  %not_err69 = icmp eq i64 %31, 0
+  %32 = call i1 @llvm.expect.i1(i1 %not_err69, i1 true)
+  br i1 %32, label %after_check71, label %assign_optional70
+
+assign_optional70:                                ; preds = %switch.case64
+  store i64 %31, ptr %error_var66, align 8
+  br label %guard_block72
+
+after_check71:                                    ; preds = %switch.case64
+  br label %noerr_block73
+
+guard_block72:                                    ; preds = %assign_optional70
+  br label %voiderr87
+
+noerr_block73:                                    ; preds = %after_check71
+  %33 = load i64, ptr %retparam68, align 8
+  store i64 %33, ptr %len65, align 8
+  %34 = call i64 @std.io.File.write_byte(ptr %30, i8 zeroext 10)
+  %not_err75 = icmp eq i64 %34, 0
+  %35 = call i1 @llvm.expect.i1(i1 %not_err75, i1 true)
+  br i1 %35, label %after_check77, label %assign_optional76
+
+assign_optional76:                                ; preds = %noerr_block73
+  store i64 %34, ptr %error_var74, align 8
+  br label %guard_block78
+
+after_check77:                                    ; preds = %noerr_block73
+  br label %noerr_block79
+
+guard_block78:                                    ; preds = %assign_optional76
+  br label %voiderr87
+
+noerr_block79:                                    ; preds = %after_check77
+  %36 = call i64 @std.io.File.flush(ptr %30)
+  %not_err81 = icmp eq i64 %36, 0
+  %37 = call i1 @llvm.expect.i1(i1 %not_err81, i1 true)
+  br i1 %37, label %after_check83, label %assign_optional82
+
+assign_optional82:                                ; preds = %noerr_block79
+  store i64 %36, ptr %error_var80, align 8
+  br label %guard_block84
+
+after_check83:                                    ; preds = %noerr_block79
+  br label %noerr_block85
+
+guard_block84:                                    ; preds = %assign_optional82
+  br label %voiderr87
+
+noerr_block85:                                    ; preds = %after_check83
+  %38 = load i64, ptr %len65, align 8
+  %add86 = add i64 %38, 1
+  br label %voiderr87
+
+voiderr87:                                        ; preds = %noerr_block85, %guard_block84, %guard_block78, %guard_block72
+  br label %switch.exit88
+
+switch.exit88:                                    ; preds = %voiderr87, %voiderr63, %switch.entry39
+  store i32 %0, ptr %switch89, align 4
+  br label %switch.entry90
+
+switch.entry90:                                   ; preds = %switch.exit88
+  %39 = load i32, ptr %switch89, align 4
+  switch i32 %39, label %switch.exit117 [
+    i32 0, label %switch.case91
+    i32 1, label %switch.case92
+    i32 2, label %switch.case116
+  ]
+
+switch.case91:                                    ; preds = %switch.entry90
+  br label %switch.exit117
+
+switch.case92:                                    ; preds = %switch.entry90
+  %40 = call ptr @std.io.stdout()
+  %41 = call i64 @std.io.File.write(ptr %retparam96, ptr %40, ptr @.str.5, i64 6)
+  %not_err97 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err97, i1 true)
+  br i1 %42, label %after_check99, label %assign_optional98
+
+assign_optional98:                                ; preds = %switch.case92
+  store i64 %41, ptr %error_var94, align 8
+  br label %guard_block100
+
+after_check99:                                    ; preds = %switch.case92
+  br label %noerr_block101
+
+guard_block100:                                   ; preds = %assign_optional98
+  br label %voiderr115
+
+noerr_block101:                                   ; preds = %after_check99
+  %43 = load i64, ptr %retparam96, align 8
+  store i64 %43, ptr %len93, align 8
+  %44 = call i64 @std.io.File.write_byte(ptr %40, i8 zeroext 10)
+  %not_err103 = icmp eq i64 %44, 0
+  %45 = call i1 @llvm.expect.i1(i1 %not_err103, i1 true)
+  br i1 %45, label %after_check105, label %assign_optional104
+
+assign_optional104:                               ; preds = %noerr_block101
+  store i64 %44, ptr %error_var102, align 8
+  br label %guard_block106
+
+after_check105:                                   ; preds = %noerr_block101
+  br label %noerr_block107
+
+guard_block106:                                   ; preds = %assign_optional104
+  br label %voiderr115
+
+noerr_block107:                                   ; preds = %after_check105
+  %46 = call i64 @std.io.File.flush(ptr %40)
+  %not_err109 = icmp eq i64 %46, 0
+  %47 = call i1 @llvm.expect.i1(i1 %not_err109, i1 true)
+  br i1 %47, label %after_check111, label %assign_optional110
+
+assign_optional110:                               ; preds = %noerr_block107
+  store i64 %46, ptr %error_var108, align 8
+  br label %guard_block112
+
+after_check111:                                   ; preds = %noerr_block107
+  br label %noerr_block113
+
+guard_block112:                                   ; preds = %assign_optional110
+  br label %voiderr115
+
+noerr_block113:                                   ; preds = %after_check111
+  %48 = load i64, ptr %len93, align 8
+  %add114 = add i64 %48, 1
+  br label %voiderr115
+
+voiderr115:                                       ; preds = %noerr_block113, %guard_block112, %guard_block106, %guard_block100
+  br label %switch.exit117
+
+switch.case116:                                   ; preds = %switch.entry90
+  br label %switch.exit117
+
+switch.exit117:                                   ; preds = %switch.case116, %voiderr115, %switch.case91, %switch.entry90
+  store i32 %0, ptr %switch118, align 4
+  br label %switch.entry119
+
+switch.entry119:                                  ; preds = %switch.exit117
+  %49 = load i32, ptr %switch118, align 4
+  switch i32 %49, label %switch.default [
+    i32 0, label %switch.case120
+    i32 1, label %switch.case120
+    i32 2, label %switch.case120
+  ]
+
+switch.case120:                                   ; preds = %switch.entry119, %switch.entry119, %switch.entry119
+  br label %switch.exit121
+
+switch.default:                                   ; preds = %switch.entry119
+  br label %switch.exit121
+
+switch.exit121:                                   ; preds = %switch.default, %switch.case120
+  store i32 %0, ptr %switch122, align 4
+  br label %switch.entry123
+
+switch.entry123:                                  ; preds = %switch.exit121
+  %50 = load i32, ptr %switch122, align 4
+  switch i32 %50, label %switch.exit197 [
+    i32 0, label %switch.case124
+    i32 1, label %switch.case148
+    i32 2, label %switch.case173
+  ]
+
+switch.case124:                                   ; preds = %switch.entry123
+  store i32 1, ptr %a, align 4
+  %51 = call ptr @std.io.stdout()
+  %52 = call i64 @std.io.File.write(ptr %retparam128, ptr %51, ptr @.str.6, i64 1)
+  %not_err129 = icmp eq i64 %52, 0
+  %53 = call i1 @llvm.expect.i1(i1 %not_err129, i1 true)
+  br i1 %53, label %after_check131, label %assign_optional130
+
+assign_optional130:                               ; preds = %switch.case124
+  store i64 %52, ptr %error_var126, align 8
+  br label %guard_block132
+
+after_check131:                                   ; preds = %switch.case124
+  br label %noerr_block133
+
+guard_block132:                                   ; preds = %assign_optional130
+  br label %voiderr147
+
+noerr_block133:                                   ; preds = %after_check131
+  %54 = load i64, ptr %retparam128, align 8
+  store i64 %54, ptr %len125, align 8
+  %55 = call i64 @std.io.File.write_byte(ptr %51, i8 zeroext 10)
+  %not_err135 = icmp eq i64 %55, 0
+  %56 = call i1 @llvm.expect.i1(i1 %not_err135, i1 true)
+  br i1 %56, label %after_check137, label %assign_optional136
+
+assign_optional136:                               ; preds = %noerr_block133
+  store i64 %55, ptr %error_var134, align 8
+  br label %guard_block138
+
+after_check137:                                   ; preds = %noerr_block133
+  br label %noerr_block139
+
+guard_block138:                                   ; preds = %assign_optional136
+  br label %voiderr147
+
+noerr_block139:                                   ; preds = %after_check137
+  %57 = call i64 @std.io.File.flush(ptr %51)
+  %not_err141 = icmp eq i64 %57, 0
+  %58 = call i1 @llvm.expect.i1(i1 %not_err141, i1 true)
+  br i1 %58, label %after_check143, label %assign_optional142
+
+assign_optional142:                               ; preds = %noerr_block139
+  store i64 %57, ptr %error_var140, align 8
+  br label %guard_block144
+
+after_check143:                                   ; preds = %noerr_block139
+  br label %noerr_block145
+
+guard_block144:                                   ; preds = %assign_optional142
+  br label %voiderr147
+
+noerr_block145:                                   ; preds = %after_check143
+  %59 = load i64, ptr %len125, align 8
+  %add146 = add i64 %59, 1
+  br label %voiderr147
+
+voiderr147:                                       ; preds = %noerr_block145, %guard_block144, %guard_block138, %guard_block132
+  br label %switch.case148
+
+switch.case148:                                   ; preds = %switch.entry123, %voiderr147
+  store i32 2, ptr %a149, align 4
+  %60 = call ptr @std.io.stdout()
+  %61 = call i64 @std.io.File.write(ptr %retparam153, ptr %60, ptr @.str.7, i64 1)
+  %not_err154 = icmp eq i64 %61, 0
+  %62 = call i1 @llvm.expect.i1(i1 %not_err154, i1 true)
+  br i1 %62, label %after_check156, label %assign_optional155
+
+assign_optional155:                               ; preds = %switch.case148
+  store i64 %61, ptr %error_var151, align 8
+  br label %guard_block157
+
+after_check156:                                   ; preds = %switch.case148
+  br label %noerr_block158
+
+guard_block157:                                   ; preds = %assign_optional155
+  br label %voiderr172
+
+noerr_block158:                                   ; preds = %after_check156
+  %63 = load i64, ptr %retparam153, align 8
+  store i64 %63, ptr %len150, align 8
+  %64 = call i64 @std.io.File.write_byte(ptr %60, i8 zeroext 10)
+  %not_err160 = icmp eq i64 %64, 0
+  %65 = call i1 @llvm.expect.i1(i1 %not_err160, i1 true)
+  br i1 %65, label %after_check162, label %assign_optional161
+
+assign_optional161:                               ; preds = %noerr_block158
+  store i64 %64, ptr %error_var159, align 8
+  br label %guard_block163
+
+after_check162:                                   ; preds = %noerr_block158
+  br label %noerr_block164
+
+guard_block163:                                   ; preds = %assign_optional161
+  br label %voiderr172
+
+noerr_block164:                                   ; preds = %after_check162
+  %66 = call i64 @std.io.File.flush(ptr %60)
+  %not_err166 = icmp eq i64 %66, 0
+  %67 = call i1 @llvm.expect.i1(i1 %not_err166, i1 true)
+  br i1 %67, label %after_check168, label %assign_optional167
+
+assign_optional167:                               ; preds = %noerr_block164
+  store i64 %66, ptr %error_var165, align 8
+  br label %guard_block169
+
+after_check168:                                   ; preds = %noerr_block164
+  br label %noerr_block170
+
+guard_block169:                                   ; preds = %assign_optional167
+  br label %voiderr172
+
+noerr_block170:                                   ; preds = %after_check168
+  %68 = load i64, ptr %len150, align 8
+  %add171 = add i64 %68, 1
+  br label %voiderr172
+
+voiderr172:                                       ; preds = %noerr_block170, %guard_block169, %guard_block163, %guard_block157
+  br label %switch.case173
+
+switch.case173:                                   ; preds = %switch.entry123, %voiderr172
+  %69 = call ptr @std.io.stdout()
+  %70 = call i64 @std.io.File.write(ptr %retparam177, ptr %69, ptr @.str.8, i64 1)
+  %not_err178 = icmp eq i64 %70, 0
+  %71 = call i1 @llvm.expect.i1(i1 %not_err178, i1 true)
+  br i1 %71, label %after_check180, label %assign_optional179
+
+assign_optional179:                               ; preds = %switch.case173
+  store i64 %70, ptr %error_var175, align 8
+  br label %guard_block181
+
+after_check180:                                   ; preds = %switch.case173
+  br label %noerr_block182
+
+guard_block181:                                   ; preds = %assign_optional179
+  br label %voiderr196
+
+noerr_block182:                                   ; preds = %after_check180
+  %72 = load i64, ptr %retparam177, align 8
+  store i64 %72, ptr %len174, align 8
+  %73 = call i64 @std.io.File.write_byte(ptr %69, i8 zeroext 10)
+  %not_err184 = icmp eq i64 %73, 0
+  %74 = call i1 @llvm.expect.i1(i1 %not_err184, i1 true)
+  br i1 %74, label %after_check186, label %assign_optional185
+
+assign_optional185:                               ; preds = %noerr_block182
+  store i64 %73, ptr %error_var183, align 8
+  br label %guard_block187
+
+after_check186:                                   ; preds = %noerr_block182
+  br label %noerr_block188
+
+guard_block187:                                   ; preds = %assign_optional185
+  br label %voiderr196
+
+noerr_block188:                                   ; preds = %after_check186
+  %75 = call i64 @std.io.File.flush(ptr %69)
+  %not_err190 = icmp eq i64 %75, 0
+  %76 = call i1 @llvm.expect.i1(i1 %not_err190, i1 true)
+  br i1 %76, label %after_check192, label %assign_optional191
+
+assign_optional191:                               ; preds = %noerr_block188
+  store i64 %75, ptr %error_var189, align 8
+  br label %guard_block193
+
+after_check192:                                   ; preds = %noerr_block188
+  br label %noerr_block194
+
+guard_block193:                                   ; preds = %assign_optional191
+  br label %voiderr196
+
+noerr_block194:                                   ; preds = %after_check192
+  %77 = load i64, ptr %len174, align 8
+  %add195 = add i64 %77, 1
+  br label %voiderr196
+
+voiderr196:                                       ; preds = %noerr_block194, %guard_block193, %guard_block187, %guard_block181
+  br label %switch.exit197
+
+switch.exit197:                                   ; preds = %voiderr196, %switch.entry123
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/from_docs/examples_functionpointer.c3t b/test/test_suite7/from_docs/examples_functionpointer.c3t
new file mode 100644
index 000000000..83eabb787
--- /dev/null
+++ b/test/test_suite7/from_docs/examples_functionpointer.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+
+module demo;
+def Callback = fn int(char* text, int value);
+
+fn int my_callback(char* text, int value)
+{
+    return 0;
+}
+
+Callback cb = &my_callback;
+
+fn void main()
+{
+    int result = cb("demo", 123);
+    // ..
+}
+
+/* #expect: demo.ll
+
+
+define i32 @demo.my_callback(ptr %0, i32 %1) #0 {
+entry:
+  ret i32 0
+}
+
+define void @demo.main() #0 {
+entry:
+  %result = alloca i32, align 4
+  %0 = load ptr, ptr @demo.cb, align 8
+  %1 = call i32 %0(ptr @.str, i32 123)
+  store i32 %1, ptr %result, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/from_docs/examples_if_catch.c3t b/test/test_suite7/from_docs/examples_if_catch.c3t
new file mode 100644
index 000000000..6ddf4ddc4
--- /dev/null
+++ b/test/test_suite7/from_docs/examples_if_catch.c3t
@@ -0,0 +1,163 @@
+// #target: macos-x64
+module demo;
+import libc;
+import std::io;
+
+fault MathError
+{
+    DIVISION_BY_ZERO
+}
+
+fn int foo() { return 123; }
+fn int bar() { return 0; }
+
+fn double! divide(int a, int b)
+{
+    if (b == 0) return MathError.DIVISION_BY_ZERO?;
+    return (double)(a) / (double)(b);
+
+}
+
+// Rethrowing an error uses "?" suffix
+fn void! testMayError()
+{
+    divide(foo(), bar())!;
+}
+
+fn void main()
+{
+    // ratio has an optional type.
+    double! ratio = divide(foo(), bar());
+
+    // Handle the error
+    if (catch err = ratio)
+    {
+        case MathError.DIVISION_BY_ZERO:
+            libc::printf("Division by zero\n");
+            return;
+        default:
+            libc::printf("Unexpected error!");
+            return;
+    }
+    // Flow typing makes "ratio"
+    // have the type double here.
+    libc::printf("Ratio was %f\n", ratio);
+}
+
+/* #expect: demo.ll
+
+
+define i64 @demo.divide(ptr %0, i32 %1, i32 %2) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  %eq = icmp eq i32 %2, 0
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i64 ptrtoint (ptr @"demo.MathError$DIVISION_BY_ZERO" to i64)
+
+if.exit:                                          ; preds = %entry
+  %sifp = sitofp i32 %1 to double
+  %sifp1 = sitofp i32 %2 to double
+  %fdiv = fdiv double %sifp, %sifp1
+  store double %fdiv, ptr %0, align 8
+  ret i64 0
+}
+
+define i64 @demo.testMayError() #0 {
+entry:
+  %error_var = alloca i64, align 8
+  %retparam = alloca double, align 8
+  %0 = call i32 @demo.foo()
+  %1 = call i32 @demo.bar()
+  %2 = call i64 @demo.divide(ptr %retparam, i32 %0, i32 %1)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %4 = load i64, ptr %error_var, align 8
+  ret i64 %4
+
+noerr_block:                                      ; preds = %after_check
+  ret i64 0
+}
+
+define void @demo.main() #0 {
+entry:
+  %ratio = alloca double, align 8
+  %ratio.f = alloca i64, align 8
+  %retparam = alloca double, align 8
+  %err = alloca i64, align 8
+  %switch = alloca i64, align 8
+  %0 = call i32 @demo.foo()
+  %1 = call i32 @demo.bar()
+  %2 = call i64 @demo.divide(ptr %retparam, i32 %0, i32 %1)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %ratio.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %entry
+  %4 = load double, ptr %retparam, align 8
+  store double %4, ptr %ratio, align 8
+  store i64 0, ptr %ratio.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check, %assign_optional
+  br label %testblock
+
+testblock:                                        ; preds = %after_assign
+  %optval = load i64, ptr %ratio.f, align 8
+  %not_err1 = icmp eq i64 %optval, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err1, i1 true)
+  br i1 %5, label %after_check3, label %assign_optional2
+
+assign_optional2:                                 ; preds = %testblock
+  store i64 %optval, ptr %err, align 8
+  br label %end_block
+
+after_check3:                                     ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check3, %assign_optional2
+  %6 = load i64, ptr %err, align 8
+  %neq = icmp ne i64 %6, 0
+  br i1 %neq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  store i64 %6, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %if.then
+  %7 = load i64, ptr %switch, align 8
+  %eq = icmp eq i64 ptrtoint (ptr @"demo.MathError$DIVISION_BY_ZERO" to i64), %7
+  br i1 %eq, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %switch.entry
+  %8 = call i32 (ptr, ...) @printf(ptr @.str)
+  ret void
+
+next_if:                                          ; preds = %switch.entry
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if
+  %9 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  ret void
+
+if.exit:                                          ; preds = %end_block
+  %10 = load double, ptr %ratio, align 8
+  %11 = call i32 (ptr, ...) @printf(ptr @.str.2, double %10)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/from_docs/examples_macro_function.c3t b/test/test_suite7/from_docs/examples_macro_function.c3t
new file mode 100644
index 000000000..70202ea71
--- /dev/null
+++ b/test/test_suite7/from_docs/examples_macro_function.c3t
@@ -0,0 +1,44 @@
+// #target: macos-x64
+module example;
+import std::io;
+
+macro foo(a, b)
+{
+    return a(b);
+}
+
+fn int square(int x)
+{
+    return x * x;
+}
+
+fn int test()
+{
+    int a = 2;
+    int b = 3;
+    return foo(&square, 2) + a + b; // 9
+    // return foo(square, 2) + a + b;
+    // Error the symbol "square" cannot be used as an argument.
+}
+
+/* #expect: example.ll
+
+define i32 @example.square(i32 %0) #0 {
+entry:
+  %mul = mul i32 %0, %0
+  ret i32 %mul
+}
+
+define i32 @example.test() #0 {
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  store i32 2, ptr %a, align 4
+  store i32 3, ptr %b, align 4
+  %0 = call i32 @example.square(i32 2)
+  %1 = load i32, ptr %a, align 4
+  %add = add i32 %0, %1
+  %2 = load i32, ptr %b, align 4
+  %add1 = add i32 %add, %2
+  ret i32 %add1
+}
\ No newline at end of file
diff --git a/test/test_suite7/from_docs/examples_struct.c3 b/test/test_suite7/from_docs/examples_struct.c3
new file mode 100644
index 000000000..2e0dee843
--- /dev/null
+++ b/test/test_suite7/from_docs/examples_struct.c3
@@ -0,0 +1,46 @@
+def Callback = fn int(char c);
+struct Person { int i; }
+struct Company { int j; }
+enum Status : int
+{
+    IDLE,
+    BUSY,
+    DONE,
+}
+
+struct MyData
+{
+    char* name;
+    Callback open;
+    Callback close;
+    //Status status;
+
+    // named sub-structs (x.other.value)
+    struct other
+    {
+        int value;
+        int status;   // ok, no name clash with other status
+    }
+
+    // anonymous sub-structs (x.value)
+    struct
+    {
+        int value;
+        int status;   // error, name clash with other status in MyData
+    }
+
+    // anonymous union (x.person)
+    union
+    {
+        Person* person;
+        Company company;
+    }
+
+    // named sub-unions (x.either.this)
+    union either
+    {
+        int this;
+        bool or;
+        char* that;
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/accidental_method_1448.c3 b/test/test_suite7/functions/accidental_method_1448.c3
new file mode 100644
index 000000000..8afbcd726
--- /dev/null
+++ b/test/test_suite7/functions/accidental_method_1448.c3
@@ -0,0 +1,11 @@
+import std;
+def MaybeInt = maybe::Maybe(<int>);
+
+def Func = fn void (args...);
+
+fn int main() {
+	Func t;
+	MaybeInt m = maybe::EMPTY(<int>);
+	io::printfn("%s %s", m.value, m.has_value);
+	return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/after_vararg.c3 b/test/test_suite7/functions/after_vararg.c3
new file mode 100644
index 000000000..8fee2a86b
--- /dev/null
+++ b/test/test_suite7/functions/after_vararg.c3
@@ -0,0 +1,3 @@
+fn void test1(int... x, int) { } // #error: A parameter name was expected
+fn void test2(x..., int) { } // #error: A parameter name was expected
+extern fn void test3(int a, ..., int y); // #error: C-style varargs cannot be followed by regular parameters.
\ No newline at end of file
diff --git a/test/test_suite7/functions/assorted_tests.c3t b/test/test_suite7/functions/assorted_tests.c3t
new file mode 100644
index 000000000..8abef35f5
--- /dev/null
+++ b/test/test_suite7/functions/assorted_tests.c3t
@@ -0,0 +1,113 @@
+// #target: macos-x64
+module test;
+
+fn int foo1()
+{
+  char *pp @noinit;
+  uint w_cnt @noinit;
+
+  w_cnt += *pp;
+
+  return (int)(w_cnt);
+}
+
+extern fn void test2(int, double, float);
+
+fn void foo2(int x)
+{
+    test2(x, x ? 1.0 : 12.5, 1.0);
+}
+
+fn int trys(ichar* s, int x)
+{
+    int asa @noinit;
+    double val @noinit;
+    int lls @noinit;
+    if (x)
+    {
+        asa = lls + asa;
+    }
+    else
+    {
+    }
+    return asa + (int)(val);
+}
+
+struct InternalFPF
+{
+    char type;
+}
+
+fn void setInternalFPFZero(InternalFPF* dest) @noinline
+{
+    dest.type = 0;
+}
+
+fn void denormalize(InternalFPF* ptr)
+{
+    setInternalFPFZero(ptr);
+}
+
+
+/* #expect: test.ll
+
+
+define i32 @test.foo1() #0 {
+entry:
+  %pp = alloca ptr, align 8
+  %w_cnt = alloca i32, align 4
+  %0 = load i32, ptr %w_cnt, align 4
+  %1 = load ptr, ptr %pp, align 8
+  %2 = load i8, ptr %1, align 1
+  %zext = zext i8 %2 to i32
+  %add = add i32 %0, %zext
+  store i32 %add, ptr %w_cnt, align 4
+  %3 = load i32, ptr %w_cnt, align 4
+  ret i32 %3
+}
+
+; Function Attrs:
+define void @test.foo2(i32 %0) #0 {
+entry:
+  %i2b = icmp ne i32 %0, 0
+  %ternary = select i1 %i2b, double 1.000000e+00, double 1.250000e+01
+  call void @test2(i32 %0, double %ternary, float 1.000000e+00)
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.trys(ptr %0, i32 %1) #0 {
+entry:
+  %asa = alloca i32, align 4
+  %val = alloca double, align 8
+  %lls = alloca i32, align 4
+  %i2b = icmp ne i32 %1, 0
+  br i1 %i2b, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %2 = load i32, ptr %lls, align 4
+  %3 = load i32, ptr %asa, align 4
+  %add = add i32 %2, %3
+  store i32 %add, ptr %asa, align 4
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  %4 = load i32, ptr %asa, align 4
+  %5 = load double, ptr %val, align 8
+  %fpsi = fptosi double %5 to i32
+  %add1 = add i32 %4, %fpsi
+  ret i32 %add1
+}
+
+define void @test.setInternalFPFZero(ptr %0) #1 {
+entry:
+  store i8 0, ptr %0, align 1
+  ret void
+}
+
+; Function Attrs:
+define void @test.denormalize(ptr %0) #0 {
+entry:
+  call void @test.setInternalFPFZero(ptr %0)
+  ret void
+}
diff --git a/test/test_suite7/functions/body_argument_fail.c3 b/test/test_suite7/functions/body_argument_fail.c3
new file mode 100644
index 000000000..7af99bcf5
--- /dev/null
+++ b/test/test_suite7/functions/body_argument_fail.c3
@@ -0,0 +1,5 @@
+fn void foo1(int... x;) {} // #error: Expected ')'
+fn void foo2(... x;) {} // #error: Expected ')'
+fn void foo3(... x;) {} // #error: Expected ')'
+fn void foo4(;) {} // #error: Expected ')'
+fn void foo5(int x;) {} // #error: Expected ')'
\ No newline at end of file
diff --git a/test/test_suite7/functions/c_vararg_expansion.c3t b/test/test_suite7/functions/c_vararg_expansion.c3t
new file mode 100644
index 000000000..650a79681
--- /dev/null
+++ b/test/test_suite7/functions/c_vararg_expansion.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module test;
+extern fn void printf(char*,...);
+distinct Foo = float;
+fn void main()
+{
+	Foo a = 12.3;
+	Foo! b = 33.5;
+	(void)printf("%f %f %f", (float)a, a, b);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca float, align 4
+  %b = alloca float, align 4
+  %b.f = alloca i64, align 8
+  store float 0x40289999A0000000, ptr %a, align 4
+  store float 3.350000e+01, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  %0 = load float, ptr %a, align 4
+  %fpfpext = fpext float %0 to double
+  %1 = load float, ptr %a, align 4
+  %fpfpext1 = fpext float %1 to double
+  %optval = load i64, ptr %b.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %voiderr
+after_check:                                      ; preds = %entry
+  %3 = load float, ptr %b, align 4
+  %fpfpext2 = fpext float %3 to double
+  call void (ptr, ...) @printf(ptr @.str, double %fpfpext, double %fpfpext1, double %fpfpext2)
+  br label %voiderr
+voiderr:                                          ; preds = %after_check, %entry
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/call_conv_fntype.c3 b/test/test_suite7/functions/call_conv_fntype.c3
new file mode 100644
index 000000000..58f40a3b9
--- /dev/null
+++ b/test/test_suite7/functions/call_conv_fntype.c3
@@ -0,0 +1,6 @@
+def Foo = fn int(String x, int z) @callconv("veccall");
+
+fn int v(String x, int z) @callconv("veccall")
+{
+	return 1;
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/ct_named_params.c3t b/test/test_suite7/functions/ct_named_params.c3t
new file mode 100644
index 000000000..286b8d58f
--- /dev/null
+++ b/test/test_suite7/functions/ct_named_params.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module test;
+
+macro foo($bar, $Type)
+{
+	$Type a = $bar;
+	return $bar;
+}
+
+fn void bar()
+{
+  int x = foo($bar: 167, $Type: int);
+}
+
+/* #expect: test.ll
+
+define void @test.bar() #0 {
+entry:
+  %x = alloca i32, align 4
+  %a = alloca i32, align 4
+  store i32 167, ptr %a, align 4
+  store i32 167, ptr %x, align 4
+  ret void
\ No newline at end of file
diff --git a/test/test_suite7/functions/default_param_fail.c3 b/test/test_suite7/functions/default_param_fail.c3
new file mode 100644
index 000000000..aeac261a8
--- /dev/null
+++ b/test/test_suite7/functions/default_param_fail.c3
@@ -0,0 +1,11 @@
+
+int z;
+
+fault MyError
+{
+    FOO,
+}
+
+fn void test(int a = z) {}
+
+fn void test2(int b = MyError.FOO?) {}
\ No newline at end of file
diff --git a/test/test_suite7/functions/defered_default_arguments.c3t b/test/test_suite7/functions/defered_default_arguments.c3t
new file mode 100644
index 000000000..baabb7beb
--- /dev/null
+++ b/test/test_suite7/functions/defered_default_arguments.c3t
@@ -0,0 +1,56 @@
+// #target: macos-x64
+module test;
+import std::io;
+import test2;
+
+fn void test(int a = test2::bar(), int b = test2::foo())
+{
+	io::printf("%d %d\n", a, b);
+}
+
+module test2;
+
+fn int foo()
+{
+	static int x = 0;
+	return ++x;
+}
+
+macro int bar()
+{
+	static int x = 0;
+	return ++x;
+}
+
+module test3;
+import test;
+import std::io;
+
+fn void main()
+{
+	test::test(1, 2);
+	test::test(a: 3);
+	test::test(1, b: 32);
+	test::test();
+	test::test();
+}
+
+/* #expect: test3.ll
+
+entry:
+  call void @test.test(i32 1, i32 2)
+  %0 = call i32 @test2.foo()
+  call void @test.test(i32 3, i32 %0)
+  call void @test.test(i32 1, i32 32)
+  %1 = load i32, ptr @main.x, align 4
+  %add = add i32 %1, 1
+  store i32 %add, ptr @main.x, align 4
+  %2 = call i32 @test2.foo()
+  call void @test.test(i32 %add, i32 %2)
+  %3 = load i32, ptr @main.x.1, align 4
+  %add1 = add i32 %3, 1
+  store i32 %add1, ptr @main.x.1, align 4
+  %4 = call i32 @test2.foo()
+  call void @test.test(i32 %add1, i32 %4)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/distinct_fn_ptr_and_lambda.c3t b/test/test_suite7/functions/distinct_fn_ptr_and_lambda.c3t
new file mode 100644
index 000000000..c3e58a7da
--- /dev/null
+++ b/test/test_suite7/functions/distinct_fn_ptr_and_lambda.c3t
@@ -0,0 +1,8 @@
+def Foo = fn void(int x);
+
+distinct Bar = Foo;
+
+fn void main()
+{
+    Bar t = fn (x) { };
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/double_return.c3 b/test/test_suite7/functions/double_return.c3
new file mode 100644
index 000000000..29ea27780
--- /dev/null
+++ b/test/test_suite7/functions/double_return.c3
@@ -0,0 +1,8 @@
+module double_return;
+
+fn int test(bool pos, bool color)
+{
+  return 0;
+  return (int)(pos && color); // #warning: never execute
+}
+
diff --git a/test/test_suite7/functions/failable_param.c3 b/test/test_suite7/functions/failable_param.c3
new file mode 100644
index 000000000..40633fcaf
--- /dev/null
+++ b/test/test_suite7/functions/failable_param.c3
@@ -0,0 +1,3 @@
+module test;
+
+fn void test4(void!); // #error: Parameters may not be optional.
diff --git a/test/test_suite7/functions/func_ptr_conversion_alias.c3t b/test/test_suite7/functions/func_ptr_conversion_alias.c3t
new file mode 100644
index 000000000..f9434f330
--- /dev/null
+++ b/test/test_suite7/functions/func_ptr_conversion_alias.c3t
@@ -0,0 +1,21 @@
+// #target: macos-x64
+module test;
+
+def Callback = fn void();
+def Callback2 = fn void();
+
+def GetCallback = fn Callback2**[][123]*();
+
+fn Callback**[][123]* tester()
+{
+	return null;
+}
+
+GetCallback x = &tester;
+
+
+def GetCallbackOpt = fn Callback2!();
+
+fn Callback2! tester2() => null;
+
+GetCallbackOpt y = &tester2;
\ No newline at end of file
diff --git a/test/test_suite7/functions/func_ptr_conversions_and_names.c3t b/test/test_suite7/functions/func_ptr_conversions_and_names.c3t
new file mode 100644
index 000000000..57cf0d55e
--- /dev/null
+++ b/test/test_suite7/functions/func_ptr_conversions_and_names.c3t
@@ -0,0 +1,135 @@
+// #target: macos-x64
+module test;
+import std::io;
+def Func = fn int(int y);
+def FuncOther = fn bool(char*);
+def FuncSame = fn int(int z = 444);
+
+fn int test(int a) { return a; }
+fn int test2(int b = 3) { return b; }
+
+fn int! test3(int b = 3) { return b; }
+fn int! test4(int b = 3) { return b; }
+
+fn void main()
+{
+	Func a = &test;
+	Func b = &test2;
+	io::printfn("%d", a(y: 123));
+	io::printfn("%d", (&test2)());
+	FuncSame z = &test2;
+	io::printfn("%d", z());
+	io::printfn("%s", $typeof(b ? &test2 : &test).qnameof);
+	io::printfn("%s", $typeof(b ? &test2 : &test).nameof);
+	io::printfn("%s", $typeof(&test2).qnameof);
+	io::printfn("%s", $typeof(&test2).nameof);
+	io::printfn("%s", $typeof(b ? &test4 : &test3).nameof);
+
+	$typeof(b ? &test2 : &test) y = &test2;
+	typeid zfoke = $typeof(y).typeid;
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [3 x i8] c"%d\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.str.1 = private unnamed_addr constant [3 x i8] c"%d\00", align 1
+@.str.2 = private unnamed_addr constant [3 x i8] c"%d\00", align 1
+@.str.3 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.4 = private unnamed_addr constant [12 x i8] c"fn int(int)\00", align 1
+@"$ct.String" = linkonce global %.introspect { i8 18, i64 ptrtoint (ptr @"$ct.sa$char" to i64), ptr null, i64 16, i64 ptrtoint (ptr @"$ct.sa$char" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.sa$char" = linkonce global %.introspect { i8 16, i64 0, ptr null, i64 16, i64 ptrtoint (ptr @"$ct.char" to i64), i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.char" = linkonce global %.introspect { i8 3, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@.str.5 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.6 = private unnamed_addr constant [12 x i8] c"fn int(int)\00", align 1
+@.str.7 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.8 = private unnamed_addr constant [12 x i8] c"fn int(int)\00", align 1
+@.str.9 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.10 = private unnamed_addr constant [12 x i8] c"fn int(int)\00", align 1
+@.str.11 = private unnamed_addr constant [3 x i8] c"%s\00", align 1
+@.str.12 = private unnamed_addr constant [13 x i8] c"fn int!(int)\00", align 1
+@"$ct.fn$int$int$" = linkonce global %.introspect { i8 13, i64 0, ptr null, i64 8, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @test.main() #0 {
+entry:
+  %a = alloca ptr, align 8
+  %b = alloca ptr, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  %varargslots1 = alloca [1 x %any], align 16
+  %taddr2 = alloca i32, align 4
+  %retparam3 = alloca i64, align 8
+  %z = alloca ptr, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %taddr5 = alloca i32, align 4
+  %retparam6 = alloca i64, align 8
+  %varargslots7 = alloca [1 x %any], align 16
+  %taddr8 = alloca %"char[]", align 8
+  %retparam9 = alloca i64, align 8
+  %varargslots10 = alloca [1 x %any], align 16
+  %taddr11 = alloca %"char[]", align 8
+  %retparam12 = alloca i64, align 8
+  %varargslots13 = alloca [1 x %any], align 16
+  %taddr14 = alloca %"char[]", align 8
+  %retparam15 = alloca i64, align 8
+  %varargslots16 = alloca [1 x %any], align 16
+  %taddr17 = alloca %"char[]", align 8
+  %retparam18 = alloca i64, align 8
+  %varargslots19 = alloca [1 x %any], align 16
+  %taddr20 = alloca %"char[]", align 8
+  %retparam21 = alloca i64, align 8
+  %y = alloca ptr, align 8
+  %zfoke = alloca i64, align 8
+  store ptr @test.test, ptr %a, align 8
+  store ptr @test.test2, ptr %b, align 8
+  %0 = load ptr, ptr %a, align 8
+  %1 = call i32 %0(i32 123)
+  store i32 %1, ptr %taddr, align 4
+  %2 = insertvalue %any undef, ptr %taddr, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %3, ptr %varargslots, align 16
+  %4 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  %5 = call i32 @test.test2(i32 3)
+  store i32 %5, ptr %taddr2, align 4
+  %6 = insertvalue %any undef, ptr %taddr2, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %7, ptr %varargslots1, align 16
+  %8 = call i64 @std.io.printfn(ptr %retparam3, ptr @.str.1, i64 2, ptr %varargslots1, i64 1)
+  store ptr @test.test2, ptr %z, align 8
+  %9 = load ptr, ptr %z, align 8
+  %10 = call i32 %9(i32 444)
+  store i32 %10, ptr %taddr5, align 4
+  %11 = insertvalue %any undef, ptr %taddr5, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %12, ptr %varargslots4, align 16
+  %13 = call i64 @std.io.printfn(ptr %retparam6, ptr @.str.2, i64 2, ptr %varargslots4, i64 1)
+  store %"char[]" { ptr @.str.4, i64 11 }, ptr %taddr8, align 8
+  %14 = insertvalue %any undef, ptr %taddr8, 0
+  %15 = insertvalue %any %14, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %15, ptr %varargslots7, align 16
+  %16 = call i64 @std.io.printfn(ptr %retparam9, ptr @.str.3, i64 2, ptr %varargslots7, i64 1)
+  store %"char[]" { ptr @.str.6, i64 11 }, ptr %taddr11, align 8
+  %17 = insertvalue %any undef, ptr %taddr11, 0
+  %18 = insertvalue %any %17, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %18, ptr %varargslots10, align 16
+  %19 = call i64 @std.io.printfn(ptr %retparam12, ptr @.str.5, i64 2, ptr %varargslots10, i64 1)
+  store %"char[]" { ptr @.str.8, i64 11 }, ptr %taddr14, align 8
+  %20 = insertvalue %any undef, ptr %taddr14, 0
+  %21 = insertvalue %any %20, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %21, ptr %varargslots13, align 16
+  %22 = call i64 @std.io.printfn(ptr %retparam15, ptr @.str.7, i64 2, ptr %varargslots13, i64 1)
+  store %"char[]" { ptr @.str.10, i64 11 }, ptr %taddr17, align 8
+  %23 = insertvalue %any undef, ptr %taddr17, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %24, ptr %varargslots16, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam18, ptr @.str.9, i64 2, ptr %varargslots16, i64 1)
+  store %"char[]" { ptr @.str.12, i64 12 }, ptr %taddr20, align 8
+  %26 = insertvalue %any undef, ptr %taddr20, 0
+  %27 = insertvalue %any %26, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %27, ptr %varargslots19, align 16
+  %28 = call i64 @std.io.printfn(ptr %retparam21, ptr @.str.11, i64 2, ptr %varargslots19, i64 1)
+  store ptr @test.test2, ptr %y, align 8
+  store i64 ptrtoint (ptr @"$ct.fn$int$int$" to i64), ptr %zfoke, align 8
+  ret void
+}
diff --git a/test/test_suite7/functions/func_ptr_null.check.c3t b/test/test_suite7/functions/func_ptr_null.check.c3t
new file mode 100644
index 000000000..5b30e0e23
--- /dev/null
+++ b/test/test_suite7/functions/func_ptr_null.check.c3t
@@ -0,0 +1,43 @@
+// #target: macos-aarch64
+// #safe: yes
+module test;
+def TestFn = fn void();
+
+fn int main()
+{
+  TestFn foo;
+  foo();
+  return 0;
+}
+
+/* #expect: test.ll
+
+
+define i32 @main() #0 {
+entry:
+  %foo = alloca ptr, align 8
+  %taddr = alloca %"char[]", align 8
+  %taddr1 = alloca %"char[]", align 8
+  %taddr2 = alloca %"char[]", align 8
+  store ptr null, ptr %foo, align 8
+  %0 = load ptr, ptr %foo, align 8
+  %checknull = icmp eq ptr %0, null
+  %1 = call i1 @llvm.expect.i1(i1 %checknull, i1 false)
+  br i1 %1, label %panic, label %checkok
+
+checkok:                                          ; preds = %entry
+  call void %0()
+  ret i32 0
+
+panic:                                            ; preds = %entry
+  store %"char[]" { ptr @.panic_msg, i64 46 }, ptr %taddr, align 8
+  %2 = load [2 x i64], ptr %taddr, align 8
+  store %"char[]" { ptr @.file, i64 22 }, ptr %taddr1, align 8
+  %3 = load [2 x i64], ptr %taddr1, align 8
+  store %"char[]" { ptr @.func, i64 4 }, ptr %taddr2, align 8
+  %4 = load [2 x i64], ptr %taddr2, align 8
+  %5 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %5([2 x i64] %2, [2 x i64] %3, [2 x i64] %4, i32 7)
+  unreachable
+}
+
diff --git a/test/test_suite7/functions/function_alias_llvm_check.c3t b/test/test_suite7/functions/function_alias_llvm_check.c3t
new file mode 100644
index 000000000..bc95ffdb8
--- /dev/null
+++ b/test/test_suite7/functions/function_alias_llvm_check.c3t
@@ -0,0 +1,51 @@
+// #target: macos-x64
+module repro;
+
+import std::collections::list;
+
+def FnA = fn void(Foo*);
+def FnB = fn void(Foo*);
+
+struct Foo
+{
+    List(<FnA>) aFuncs;
+    List(<FnB>) bFuncs;
+}
+
+fn void! Foo.deinit(&self)
+{
+    self.aFuncs.free();
+    self.bFuncs.free();
+}
+
+fn void Foo.add_fn_a(&self, FnA f) => self.aFuncs.push(f);
+fn void Foo.add_fn_b(&self, FnB f) => self.bFuncs.push(f);
+
+fn void a_func(Foo* foo) {}
+fn void b_func(Foo* foo) {}
+
+fn void main()
+{
+    Foo foo;
+    defer foo.deinit()!!;
+    foo.add_fn_a(&a_func);
+    foo.add_fn_b(&b_func);
+}
+
+/* #expect: repro.ll
+
+
+define void @repro.main() #0 {
+entry:
+  %foo = alloca %Foo, align 8
+  %error_var = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %indirectarg = alloca %"any[]", align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %foo, i8 0, i64 80, i1 false)
+  call void @repro.Foo.add_fn_a(ptr %foo, ptr @repro.a_func)
+  call void @repro.Foo.add_fn_b(ptr %foo, ptr @repro.b_func)
+  %0 = call i64 @repro.Foo.deinit(ptr %foo)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
diff --git a/test/test_suite7/functions/function_reserved_name.c3 b/test/test_suite7/functions/function_reserved_name.c3
new file mode 100644
index 000000000..129f3f821
--- /dev/null
+++ b/test/test_suite7/functions/function_reserved_name.c3
@@ -0,0 +1,7 @@
+module arrays;
+
+import std::io;
+
+fn void double() {} // #error: reserved type name like 'double'
+
+fn void main() {}
\ No newline at end of file
diff --git a/test/test_suite7/functions/invalid_param.c3 b/test/test_suite7/functions/invalid_param.c3
new file mode 100644
index 000000000..7a75e9586
--- /dev/null
+++ b/test/test_suite7/functions/invalid_param.c3
@@ -0,0 +1 @@
+fn void foo(int ABC) { } // #error: Parameter names may not be all uppercase.
diff --git a/test/test_suite7/functions/macro_arguments.c3 b/test/test_suite7/functions/macro_arguments.c3
new file mode 100644
index 000000000..10b217897
--- /dev/null
+++ b/test/test_suite7/functions/macro_arguments.c3
@@ -0,0 +1,12 @@
+
+fn void foo1(int #foo) { } // #error: Only regular parameters are allowed for functions.
+
+fn void foo2(int $foo) { } // #error: Only regular parameters are allowed for functions.
+
+fn void foo3(bar) { } // #error: Only typed parameters are allowed for functions
+
+fn void foo4($Type) { } // #error: Only regular parameters are allowed for functions.
+
+fn void foo9(int x, int x) {} // #error: Duplicate parameter name 'x'.
+
+macro @foo($a, $b, $c, ...) {}
\ No newline at end of file
diff --git a/test/test_suite7/functions/macro_expr_type.c3 b/test/test_suite7/functions/macro_expr_type.c3
new file mode 100644
index 000000000..bc9d666ca
--- /dev/null
+++ b/test/test_suite7/functions/macro_expr_type.c3
@@ -0,0 +1,7 @@
+macro void @foo(int #a)
+{
+}
+fn void main()
+{
+	@foo(1.0); // #error: cannot implicitly be converted
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/missing_first_paren.c3 b/test/test_suite7/functions/missing_first_paren.c3
new file mode 100644
index 000000000..384625bd2
--- /dev/null
+++ b/test/test_suite7/functions/missing_first_paren.c3
@@ -0,0 +1,3 @@
+fn void foo)     // #error: Expected '('
+{
+}
diff --git a/test/test_suite7/functions/missing_fn.c3 b/test/test_suite7/functions/missing_fn.c3
new file mode 100644
index 000000000..29f684c8c
--- /dev/null
+++ b/test/test_suite7/functions/missing_fn.c3
@@ -0,0 +1 @@
+void foo(int x) {} // #error: This looks like the beginning of a function declaration
\ No newline at end of file
diff --git a/test/test_suite7/functions/missing_return.c3 b/test/test_suite7/functions/missing_return.c3
new file mode 100644
index 000000000..d1028c19b
--- /dev/null
+++ b/test/test_suite7/functions/missing_return.c3
@@ -0,0 +1,3 @@
+fn int test1() // #error: Missing return statement at the end of
+{
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/missing_return_lambda.c3 b/test/test_suite7/functions/missing_return_lambda.c3
new file mode 100644
index 000000000..c3f897e43
--- /dev/null
+++ b/test/test_suite7/functions/missing_return_lambda.c3
@@ -0,0 +1,9 @@
+import std::io::path;
+
+fn void! process_dir(String dir_name)
+{
+	path::Path p = path::temp_new(dir_name)!;
+	path::PathWalker fnwalk = fn bool!(Path p, bool is_dir, void*) { // #error: issing return statement at the end
+		io::printfn("path is %s", p);
+    };
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/multisplat.c3t b/test/test_suite7/functions/multisplat.c3t
new file mode 100644
index 000000000..313a72b08
--- /dev/null
+++ b/test/test_suite7/functions/multisplat.c3t
@@ -0,0 +1,112 @@
+// #target: macos-x64
+module test;
+extern fn void foo(args...);
+
+fn void main()
+{
+	int[3] y = { 33, 44, 55 };
+	foo(...y);
+	foo(1, ...y);
+	int[] z = &y;
+	foo(...z[1..2]);
+	foo(1, ...z[1..2], 5);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %y = alloca [3 x i32], align 4
+  %varargslots = alloca [3 x %any], align 16
+  %.anon = alloca [3 x i32], align 4
+  %varargslots4 = alloca [4 x %any], align 16
+  %taddr = alloca i32, align 4
+  %.anon5 = alloca [3 x i32], align 4
+  %z = alloca %"int[]", align 8
+  %varargslots11 = alloca [2 x %any], align 16
+  %varargslots15 = alloca [4 x %any], align 16
+  %taddr16 = alloca i32, align 4
+  %taddr21 = alloca i32, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %.anon, ptr align 4 %y, i32 12, i1 false)
+  %0 = insertvalue %any undef, ptr %.anon, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %ptradd = getelementptr inbounds i8, ptr %.anon, i64 4
+  %2 = insertvalue %any undef, ptr %ptradd, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd1 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %3, ptr %ptradd1, align 16
+  %ptradd2 = getelementptr inbounds i8, ptr %.anon, i64 8
+  %4 = insertvalue %any undef, ptr %ptradd2, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd3 = getelementptr inbounds i8, ptr %varargslots, i64 32
+  store %any %5, ptr %ptradd3, align 16
+  call void @foo(ptr %varargslots, i64 3)
+  store i32 1, ptr %taddr, align 4
+  %6 = insertvalue %any undef, ptr %taddr, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %7, ptr %varargslots4, align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %.anon5, ptr align 4 %y, i32 12, i1 false)
+  %8 = insertvalue %any undef, ptr %.anon5, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd6 = getelementptr inbounds i8, ptr %varargslots4, i64 16
+  store %any %9, ptr %ptradd6, align 16
+  %ptradd7 = getelementptr inbounds i8, ptr %.anon5, i64 4
+  %10 = insertvalue %any undef, ptr %ptradd7, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd8 = getelementptr inbounds i8, ptr %varargslots4, i64 32
+  store %any %11, ptr %ptradd8, align 16
+  %ptradd9 = getelementptr inbounds i8, ptr %.anon5, i64 8
+  %12 = insertvalue %any undef, ptr %ptradd9, 0
+  %13 = insertvalue %any %12, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd10 = getelementptr inbounds i8, ptr %varargslots4, i64 48
+  store %any %13, ptr %ptradd10, align 16
+  call void @foo(ptr %varargslots4, i64 4)
+  %14 = insertvalue %"int[]" undef, ptr %y, 0
+  %15 = insertvalue %"int[]" %14, i64 3, 1
+  store %"int[]" %15, ptr %z, align 8
+  %16 = load %"int[]", ptr %z, align 8
+  %17 = extractvalue %"int[]" %16, 0
+  %ptradd12 = getelementptr inbounds i8, ptr %17, i64 4
+  %18 = insertvalue %"int[]" undef, ptr %ptradd12, 0
+  %19 = insertvalue %"int[]" %18, i64 2, 1
+  %20 = extractvalue %"int[]" %19, 0
+  %21 = insertvalue %any undef, ptr %20, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %22, ptr %varargslots11, align 16
+  %23 = extractvalue %"int[]" %19, 0
+  %ptradd13 = getelementptr inbounds i8, ptr %23, i64 4
+  %24 = insertvalue %any undef, ptr %ptradd13, 0
+  %25 = insertvalue %any %24, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd14 = getelementptr inbounds i8, ptr %varargslots11, i64 16
+  store %any %25, ptr %ptradd14, align 16
+  call void @foo(ptr %varargslots11, i64 2)
+  store i32 1, ptr %taddr16, align 4
+  %26 = insertvalue %any undef, ptr %taddr16, 0
+  %27 = insertvalue %any %26, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %27, ptr %varargslots15, align 16
+  %28 = load %"int[]", ptr %z, align 8
+  %29 = extractvalue %"int[]" %28, 0
+  %ptradd17 = getelementptr inbounds i8, ptr %29, i64 4
+  %30 = insertvalue %"int[]" undef, ptr %ptradd17, 0
+  %31 = insertvalue %"int[]" %30, i64 2, 1
+  %32 = extractvalue %"int[]" %31, 0
+  %33 = insertvalue %any undef, ptr %32, 0
+  %34 = insertvalue %any %33, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd18 = getelementptr inbounds i8, ptr %varargslots15, i64 16
+  store %any %34, ptr %ptradd18, align 16
+  %35 = extractvalue %"int[]" %31, 0
+  %ptradd19 = getelementptr inbounds i8, ptr %35, i64 4
+  %36 = insertvalue %any undef, ptr %ptradd19, 0
+  %37 = insertvalue %any %36, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd20 = getelementptr inbounds i8, ptr %varargslots15, i64 32
+  store %any %37, ptr %ptradd20, align 16
+  store i32 5, ptr %taddr21, align 4
+  %38 = insertvalue %any undef, ptr %taddr21, 0
+  %39 = insertvalue %any %38, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd22 = getelementptr inbounds i8, ptr %varargslots15, i64 48
+  store %any %39, ptr %ptradd22, align 16
+  call void @foo(ptr %varargslots15, i64 4)
+  ret void
+}
diff --git a/test/test_suite7/functions/naked_function.c3t b/test/test_suite7/functions/naked_function.c3t
new file mode 100644
index 000000000..91c545b61
--- /dev/null
+++ b/test/test_suite7/functions/naked_function.c3t
@@ -0,0 +1,15 @@
+// #target: macos-x64
+
+fn void test(int i) @naked
+{
+
+}
+
+/* #expect: naked_function.ll
+
+define void @naked_function.test(i32 %0) #0 {
+entry:
+  ret void
+}
+
+attributes #0 = { naked nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
diff --git a/test/test_suite7/functions/named_arg_order.c3 b/test/test_suite7/functions/named_arg_order.c3
new file mode 100644
index 000000000..6186df429
--- /dev/null
+++ b/test/test_suite7/functions/named_arg_order.c3
@@ -0,0 +1,10 @@
+import std;
+macro void test(int a, int $baz)
+{
+	io::printn(a + $baz);
+}
+
+fn void main()
+{
+	test($baz: 1, a: 4); // #error: Named arguments must always
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/param_doc_error.c3 b/test/test_suite7/functions/param_doc_error.c3
new file mode 100644
index 000000000..3dd09dbb5
--- /dev/null
+++ b/test/test_suite7/functions/param_doc_error.c3
@@ -0,0 +1,13 @@
+<*
+@param some 1      *> // #error: parameter name
+
+fn int foo(int some){
+    return some + 1;
+}
+
+<*
+@param some stuff *>  // #error: did you forget enclosing the description in
+
+fn int foo(int some){
+    return some + 1;
+}
diff --git a/test/test_suite7/functions/param_with_comma_at_end.c3 b/test/test_suite7/functions/param_with_comma_at_end.c3
new file mode 100644
index 000000000..a83cde8b3
--- /dev/null
+++ b/test/test_suite7/functions/param_with_comma_at_end.c3
@@ -0,0 +1,6 @@
+import std::io;
+
+fn void foo(int a,)
+{
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/pointer_escape.c3 b/test/test_suite7/functions/pointer_escape.c3
new file mode 100644
index 000000000..bdfc3144f
--- /dev/null
+++ b/test/test_suite7/functions/pointer_escape.c3
@@ -0,0 +1,24 @@
+int[?] foo = {1,2,3};
+fn int* bar(int index)
+{
+	int* array = &foo;
+	return &array[index];
+}
+
+fn int* baz(int index)
+{
+	int[] array = &foo;
+	return &array[index];
+}
+
+fn int* abc(int index)
+{
+	int[3] array;
+	return &array[1]; // #error: invalid once the function returns
+}
+
+fn int* abc2(int index)
+{
+	int val;
+	return &val; // #error: invalid once the function returns
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/raw_splat.c3t b/test/test_suite7/functions/raw_splat.c3t
new file mode 100644
index 000000000..ccd1b8959
--- /dev/null
+++ b/test/test_suite7/functions/raw_splat.c3t
@@ -0,0 +1,146 @@
+// #target: macos-x64
+module rawsplat;
+
+int x;
+macro void foo(...)
+{
+	$for (var $i = 0; $i < $vacount; $i++)
+		x += $vaarg[$i] * $i;
+	$endfor
+}
+
+fn void main()
+{
+	int[3] y = { 33, 44, 55 };
+	foo(...y);
+	foo(1, ...y);
+	int[] z = &y;
+	foo(...z[1..2]);
+	foo(1, ...z[1..2], 5);
+}
+
+/* #expect: rawsplat.ll
+
+define void @rawsplat.main() #0 {
+entry:
+  %y = alloca [3 x i32], align 4
+  %.anon = alloca [3 x i32], align 4
+  %.anon1 = alloca i32, align 4
+  %.anon2 = alloca i32, align 4
+  %.anon4 = alloca i32, align 4
+  %.anon9 = alloca [3 x i32], align 4
+  %.anon10 = alloca i32, align 4
+  %.anon12 = alloca i32, align 4
+  %.anon14 = alloca i32, align 4
+  %z = alloca %"int[]", align 8
+  %.anon23 = alloca i32, align 4
+  %.anon25 = alloca i32, align 4
+  %.anon31 = alloca i32, align 4
+  %.anon33 = alloca i32, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %.anon, ptr align 4 %y, i32 12, i1 false)
+  %0 = load i32, ptr %.anon, align 4
+  store i32 %0, ptr %.anon1, align 4
+  %ptradd = getelementptr inbounds i8, ptr %.anon, i64 4
+  %1 = load i32, ptr %ptradd, align 4
+  store i32 %1, ptr %.anon2, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %.anon, i64 8
+  %2 = load i32, ptr %ptradd3, align 4
+  store i32 %2, ptr %.anon4, align 4
+  %3 = load i32, ptr @rawsplat.x, align 4
+  %4 = load i32, ptr %.anon1, align 4
+  %mul = mul i32 %4, 0
+  %add = add i32 %3, %mul
+  store i32 %add, ptr @rawsplat.x, align 4
+  %5 = load i32, ptr @rawsplat.x, align 4
+  %6 = load i32, ptr %.anon2, align 4
+  %mul5 = mul i32 %6, 1
+  %add6 = add i32 %5, %mul5
+  store i32 %add6, ptr @rawsplat.x, align 4
+  %7 = load i32, ptr @rawsplat.x, align 4
+  %8 = load i32, ptr %.anon4, align 4
+  %mul7 = mul i32 %8, 2
+  %add8 = add i32 %7, %mul7
+  store i32 %add8, ptr @rawsplat.x, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %.anon9, ptr align 4 %y, i32 12, i1 false)
+  %9 = load i32, ptr %.anon9, align 4
+  store i32 %9, ptr %.anon10, align 4
+  %ptradd11 = getelementptr inbounds i8, ptr %.anon9, i64 4
+  %10 = load i32, ptr %ptradd11, align 4
+  store i32 %10, ptr %.anon12, align 4
+  %ptradd13 = getelementptr inbounds i8, ptr %.anon9, i64 8
+  %11 = load i32, ptr %ptradd13, align 4
+  store i32 %11, ptr %.anon14, align 4
+  %12 = load i32, ptr @rawsplat.x, align 4
+  %add15 = add i32 %12, 0
+  store i32 %add15, ptr @rawsplat.x, align 4
+  %13 = load i32, ptr @rawsplat.x, align 4
+  %14 = load i32, ptr %.anon10, align 4
+  %mul16 = mul i32 %14, 1
+  %add17 = add i32 %13, %mul16
+  store i32 %add17, ptr @rawsplat.x, align 4
+  %15 = load i32, ptr @rawsplat.x, align 4
+  %16 = load i32, ptr %.anon12, align 4
+  %mul18 = mul i32 %16, 2
+  %add19 = add i32 %15, %mul18
+  store i32 %add19, ptr @rawsplat.x, align 4
+  %17 = load i32, ptr @rawsplat.x, align 4
+  %18 = load i32, ptr %.anon14, align 4
+  %mul20 = mul i32 %18, 3
+  %add21 = add i32 %17, %mul20
+  store i32 %add21, ptr @rawsplat.x, align 4
+  %19 = insertvalue %"int[]" undef, ptr %y, 0
+  %20 = insertvalue %"int[]" %19, i64 3, 1
+  store %"int[]" %20, ptr %z, align 8
+  %21 = load %"int[]", ptr %z, align 8
+  %22 = extractvalue %"int[]" %21, 0
+  %ptradd22 = getelementptr inbounds i8, ptr %22, i64 4
+  %23 = insertvalue %"int[]" undef, ptr %ptradd22, 0
+  %24 = insertvalue %"int[]" %23, i64 2, 1
+  %25 = extractvalue %"int[]" %24, 0
+  %26 = load i32, ptr %25, align 4
+  store i32 %26, ptr %.anon23, align 4
+  %27 = extractvalue %"int[]" %24, 0
+  %ptradd24 = getelementptr inbounds i8, ptr %27, i64 4
+  %28 = load i32, ptr %ptradd24, align 4
+  store i32 %28, ptr %.anon25, align 4
+  %29 = load i32, ptr @rawsplat.x, align 4
+  %30 = load i32, ptr %.anon23, align 4
+  %mul26 = mul i32 %30, 0
+  %add27 = add i32 %29, %mul26
+  store i32 %add27, ptr @rawsplat.x, align 4
+  %31 = load i32, ptr @rawsplat.x, align 4
+  %32 = load i32, ptr %.anon25, align 4
+  %mul28 = mul i32 %32, 1
+  %add29 = add i32 %31, %mul28
+  store i32 %add29, ptr @rawsplat.x, align 4
+  %33 = load %"int[]", ptr %z, align 8
+  %34 = extractvalue %"int[]" %33, 0
+  %ptradd30 = getelementptr inbounds i8, ptr %34, i64 4
+  %35 = insertvalue %"int[]" undef, ptr %ptradd30, 0
+  %36 = insertvalue %"int[]" %35, i64 2, 1
+  %37 = extractvalue %"int[]" %36, 0
+  %38 = load i32, ptr %37, align 4
+  store i32 %38, ptr %.anon31, align 4
+  %39 = extractvalue %"int[]" %36, 0
+  %ptradd32 = getelementptr inbounds i8, ptr %39, i64 4
+  %40 = load i32, ptr %ptradd32, align 4
+  store i32 %40, ptr %.anon33, align 4
+  %41 = load i32, ptr @rawsplat.x, align 4
+  %add34 = add i32 %41, 0
+  store i32 %add34, ptr @rawsplat.x, align 4
+  %42 = load i32, ptr @rawsplat.x, align 4
+  %43 = load i32, ptr %.anon31, align 4
+  %mul35 = mul i32 %43, 1
+  %add36 = add i32 %42, %mul35
+  store i32 %add36, ptr @rawsplat.x, align 4
+  %44 = load i32, ptr @rawsplat.x, align 4
+  %45 = load i32, ptr %.anon33, align 4
+  %mul37 = mul i32 %45, 2
+  %add38 = add i32 %44, %mul37
+  store i32 %add38, ptr @rawsplat.x, align 4
+  %46 = load i32, ptr @rawsplat.x, align 4
+  %add39 = add i32 %46, 15
+  store i32 %add39, ptr @rawsplat.x, align 4
+  ret void
+}
diff --git a/test/test_suite7/functions/recursive_fn.c3 b/test/test_suite7/functions/recursive_fn.c3
new file mode 100644
index 000000000..a4f1b95b5
--- /dev/null
+++ b/test/test_suite7/functions/recursive_fn.c3
@@ -0,0 +1,2 @@
+
+def Foo = fn void(Foo* x); // #error: Recursive definition
diff --git a/test/test_suite7/functions/recursive_through_generic.c3 b/test/test_suite7/functions/recursive_through_generic.c3
new file mode 100644
index 000000000..ebdb41ff8
--- /dev/null
+++ b/test/test_suite7/functions/recursive_through_generic.c3
@@ -0,0 +1,14 @@
+module oups;
+import std::collections::map;
+
+fn void main()
+{
+}
+
+def FooFunc = fn void! (Bar); // #error: Recursive definition
+def Foo = HashMap(<String, FooFunc>);
+
+struct Bar
+{
+	Foo foo;
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/returning_void.c3t b/test/test_suite7/functions/returning_void.c3t
new file mode 100644
index 000000000..7e1a7732d
--- /dev/null
+++ b/test/test_suite7/functions/returning_void.c3t
@@ -0,0 +1,20 @@
+fn void test1()
+{
+    int x;
+    if (x == 0) return;
+    return test1();
+}
+/* #expect: returning_void.ll
+
+  %x = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  %0 = load i32, ptr %x, align 4
+  %eq = icmp eq i32 %0, 0
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:
+  ret void
+
+if.exit:
+  call void @returning_void.test1()
+  ret void
diff --git a/test/test_suite7/functions/simple_test.c3t b/test/test_suite7/functions/simple_test.c3t
new file mode 100644
index 000000000..2949cc5b1
--- /dev/null
+++ b/test/test_suite7/functions/simple_test.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+
+fn int foo()
+{
+  char *pp;
+  uint w_cnt;
+
+  w_cnt += *pp;
+
+  return w_cnt;
+}
+
+/* #expect: simple_test.ll
+
+
+define i32 @simple_test.foo() #0 {
+entry:
+  %pp = alloca ptr, align 8
+  %w_cnt = alloca i32, align 4
+  store ptr null, ptr %pp, align 8
+  store i32 0, ptr %w_cnt, align 4
+  %0 = load i32, ptr %w_cnt, align 4
+  %1 = load ptr, ptr %pp, align 8
+  %2 = load i8, ptr %1, align 1
+  %zext = zext i8 %2 to i32
+  %add = add i32 %0, %zext
+  store i32 %add, ptr %w_cnt, align 4
+  %3 = load i32, ptr %w_cnt, align 4
+  ret i32 %3
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/splat.c3t b/test/test_suite7/functions/splat.c3t
new file mode 100644
index 000000000..dbd9710ab
--- /dev/null
+++ b/test/test_suite7/functions/splat.c3t
@@ -0,0 +1,43 @@
+// #target: macos-x64
+module splat;
+
+extern fn int sum_us(int... x);
+
+fn void test()
+{
+    sum_us(1, 2, 3);
+    int[3] x = { 1, 2, 3 };
+    int[] z = &x;
+    sum_us(...x);
+    sum_us(...z);
+    sum_us();
+}
+
+/* #expect: splat.ll
+
+
+declare i32 @sum_us(ptr, i64) #0
+
+  %varargslots = alloca [3 x i32], align 4
+  %x = alloca [3 x i32], align 4
+  %z = alloca %"int[]", align 8
+  store i32 1, ptr %varargslots, align 4
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 4
+  store i32 2, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %varargslots, i64 8
+  store i32 3, ptr %ptradd1, align 4
+  %0 = call i32 @sum_us(ptr %varargslots, i64 3)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 12, i1 false)
+  %1 = insertvalue %"int[]" undef, ptr %x, 0
+  %2 = insertvalue %"int[]" %1, i64 3, 1
+  store %"int[]" %2, ptr %z, align 8
+  %3 = insertvalue %"int[]" undef, ptr %x, 0
+  %4 = insertvalue %"int[]" %3, i64 3, 1
+  %5 = call i32 @sum_us(ptr %x, i64 3)
+  %lo = load ptr, ptr %z, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %z, i64 8
+  %hi = load i64, ptr %ptradd2, align 8
+  %6 = call i32 @sum_us(ptr %lo, i64 %hi)
+  %7 = call i32 @sum_us(ptr null, i64 0)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/splat_aarch64.c3t b/test/test_suite7/functions/splat_aarch64.c3t
new file mode 100644
index 000000000..70bd6e039
--- /dev/null
+++ b/test/test_suite7/functions/splat_aarch64.c3t
@@ -0,0 +1,57 @@
+// #target: linux-aarch64
+module splat;
+
+extern fn int sum_us(int... x);
+
+fn void test()
+{
+    sum_us(1, 2, 3);
+    int[3] x = { 1, 2, 3 };
+    int[] z = &x;
+    sum_us(...x);
+    sum_us(...z);
+    sum_us();
+}
+
+/* #expect: splat.ll
+
+
+%"int[]" = type { ptr, i64 }
+
+declare i32 @sum_us([2 x i64]) #0
+
+; Function Attrs:
+define void @splat.test() #0 {
+entry:
+  %varargslots = alloca [3 x i32], align 4
+  %taddr = alloca %"int[]", align 8
+  %x = alloca [3 x i32], align 4
+  %z = alloca %"int[]", align 8
+  %taddr2 = alloca %"int[]", align 8
+  %taddr3 = alloca %"int[]", align 8
+  store i32 1, ptr %varargslots, align 4
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 4
+  store i32 2, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %varargslots, i64 8
+  store i32 3, ptr %ptradd1, align 4
+  %0 = insertvalue %"int[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %"$$temp", ptr %taddr, align 8
+  %1 = load [2 x i64], ptr %taddr, align 8
+  %2 = call i32 @sum_us([2 x i64] %1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 12, i1 false)
+  %3 = insertvalue %"int[]" undef, ptr %x, 0
+  %4 = insertvalue %"int[]" %3, i64 3, 1
+  store %"int[]" %4, ptr %z, align 8
+  %5 = insertvalue %"int[]" undef, ptr %x, 0
+  %6 = insertvalue %"int[]" %5, i64 3, 1
+  store %"int[]" %6, ptr %taddr2, align 8
+  %7 = load [2 x i64], ptr %taddr2, align 8
+  %8 = call i32 @sum_us([2 x i64] %7)
+  %9 = load [2 x i64], ptr %z, align 8
+  %10 = call i32 @sum_us([2 x i64] %9)
+  store %"int[]" zeroinitializer, ptr %taddr3, align 8
+  %11 = load [2 x i64], ptr %taddr3, align 8
+  %12 = call i32 @sum_us([2 x i64] %11)
+  ret void
+}
diff --git a/test/test_suite7/functions/splat_empty.c3t b/test/test_suite7/functions/splat_empty.c3t
new file mode 100644
index 000000000..414b3f98d
--- /dev/null
+++ b/test/test_suite7/functions/splat_empty.c3t
@@ -0,0 +1,12 @@
+import std::io;
+
+macro foo($Type, a, ..., bool b = true, float f = 123.f) { io::printfn("%s %s %s %s", $Type.nameof, a, b, f); }
+macro bar($Type, a, ..., bool b, float f) { io::printfn("%s %s %s %s", $Type.nameof, a, b, f); }
+
+fn void main()
+{
+    foo(void*, 99, 0, b: false, f: 456.f); // OK
+    foo(void*, 99, /*0,*/ b: false, f: 456.f); // SEGFAULT
+    foo(void*, 99, 0, b: false, f: 456.f); // OK
+    bar(void*, 99, /*0,*/ b: false, f: 456.f);  // SEGFAULT
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/splat_init.c3t b/test/test_suite7/functions/splat_init.c3t
new file mode 100644
index 000000000..13d82a87f
--- /dev/null
+++ b/test/test_suite7/functions/splat_init.c3t
@@ -0,0 +1,40 @@
+// #target: macos-x64
+module splat;
+import std;
+
+int a = 0;
+
+fn int[2] test()
+{
+	a++;
+	return { 2, 3 };
+}
+fn void main()
+{
+	int[4] z = { a, ...test(), a };
+}
+
+/* #expect: splat.ll
+
+define void @splat.main() #0 {
+entry:
+  %z = alloca [4 x i32], align 16
+  %.anon = alloca [2 x i32], align 4
+  %result = alloca [2 x i32], align 4
+  %0 = load i32, ptr @splat.a, align 4
+  store i32 %0, ptr %z, align 4
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 4
+  %1 = call i64 @splat.test()
+  store i64 %1, ptr %result, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %.anon, ptr align 4 %result, i32 8, i1 false)
+  %2 = load i32, ptr %.anon, align 4
+  store i32 %2, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %z, i64 8
+  %ptradd2 = getelementptr inbounds i8, ptr %.anon, i64 4
+  %3 = load i32, ptr %ptradd2, align 4
+  store i32 %3, ptr %ptradd1, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %z, i64 12
+  %4 = load i32, ptr @splat.a, align 4
+  store i32 %4, ptr %ptradd3, align 4
+  ret void
+}
diff --git a/test/test_suite7/functions/splat_mingw.c3t b/test/test_suite7/functions/splat_mingw.c3t
new file mode 100644
index 000000000..4b49c2f44
--- /dev/null
+++ b/test/test_suite7/functions/splat_mingw.c3t
@@ -0,0 +1,51 @@
+// #target: mingw-x64
+module splat;
+
+extern fn int sum_us(int... x);
+
+fn void test()
+{
+    sum_us(1, 2, 3);
+    int[3] x = { 1, 2, 3 };
+    int[] z = &x;
+    sum_us(...x);
+    sum_us(...z);
+    sum_us();
+}
+
+/* #expect: splat.ll
+
+declare i32 @sum_us(ptr align 8) #0
+
+; Function Attrs:
+define void @splat.test() #0 {
+entry:
+  %varargslots = alloca [3 x i32], align 4
+  %indirectarg = alloca %"int[]", align 8
+  %x = alloca [3 x i32], align 4
+  %z = alloca %"int[]", align 8
+  %indirectarg2 = alloca %"int[]", align 8
+  %indirectarg3 = alloca %"int[]", align 8
+  %indirectarg4 = alloca %"int[]", align 8
+  store i32 1, ptr %varargslots, align 4
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 4
+  store i32 2, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %varargslots, i64 8
+  store i32 3, ptr %ptradd1, align 4
+  %0 = insertvalue %"int[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %"$$temp", ptr %indirectarg, align 8
+  %1 = call i32 @sum_us(ptr align 8 %indirectarg)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 12, i1 false)
+  %2 = insertvalue %"int[]" undef, ptr %x, 0
+  %3 = insertvalue %"int[]" %2, i64 3, 1
+  store %"int[]" %3, ptr %z, align 8
+  %4 = insertvalue %"int[]" undef, ptr %x, 0
+  %5 = insertvalue %"int[]" %4, i64 3, 1
+  store %"int[]" %5, ptr %indirectarg2, align 8
+  %6 = call i32 @sum_us(ptr align 8 %indirectarg2)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg3, ptr align 8 %z, i32 16, i1 false)
+  %7 = call i32 @sum_us(ptr align 8 %indirectarg3)
+  store %"int[]" zeroinitializer, ptr %indirectarg4, align 8
+  %8 = call i32 @sum_us(ptr align 8 %indirectarg4)
+  ret void
diff --git a/test/test_suite7/functions/splat_post_order.c3t b/test/test_suite7/functions/splat_post_order.c3t
new file mode 100644
index 000000000..c5d2803cd
--- /dev/null
+++ b/test/test_suite7/functions/splat_post_order.c3t
@@ -0,0 +1,12 @@
+macro @foo(..., bool a = true, bool b = false)
+{
+    return @foo2((void*)null, $vasplat, a: a, b: b);
+}
+
+macro @foo2(x, ..., bool a = true, bool b = false)
+{ }
+
+fn void main()
+{
+    @foo(1, 2, 3, 4, a: true, b: false);
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/splat_raw.c3 b/test/test_suite7/functions/splat_raw.c3
new file mode 100644
index 000000000..6fd5fbed0
--- /dev/null
+++ b/test/test_suite7/functions/splat_raw.c3
@@ -0,0 +1,8 @@
+
+
+extern fn void foo(int x, ...);
+
+fn void test(void*... y)
+{
+	foo(1, ...y); // #error: raw varargs
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/splat_untyped.c3t b/test/test_suite7/functions/splat_untyped.c3t
new file mode 100644
index 000000000..ab196aca6
--- /dev/null
+++ b/test/test_suite7/functions/splat_untyped.c3t
@@ -0,0 +1,39 @@
+// #target: macos-x64
+module test;
+import std;
+fn void main()
+{
+	var $a = { 1, 2, "abc" };
+	io::printfn("Hello %s %s %s %s", 1, ...$a);
+}
+
+/* #expect: test.ll
+
+  %varargslots = alloca [4 x %any], align 16
+  %taddr = alloca i32, align 4
+  %taddr1 = alloca i32, align 4
+  %taddr2 = alloca i32, align 4
+  %taddr4 = alloca %"char[]", align 8
+  %retparam = alloca i64, align 8
+  store i32 1, ptr %taddr, align 4
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  store i32 1, ptr %taddr1, align 4
+  %2 = insertvalue %any undef, ptr %taddr1, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %3, ptr %ptradd, align 16
+  store i32 2, ptr %taddr2, align 4
+  %4 = insertvalue %any undef, ptr %taddr2, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd3 = getelementptr inbounds i8, ptr %varargslots, i64 32
+  store %any %5, ptr %ptradd3, align 16
+  store %"char[]" { ptr @.str.1, i64 3 }, ptr %taddr4, align 8
+  %6 = insertvalue %any undef, ptr %taddr4, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  %ptradd5 = getelementptr inbounds i8, ptr %varargslots, i64 48
+  store %any %7, ptr %ptradd5, align 16
+  %8 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 17, ptr %varargslots, i64 4)
+  ret void
+}
diff --git a/test/test_suite7/functions/static_vars.c3t b/test/test_suite7/functions/static_vars.c3t
new file mode 100644
index 000000000..fdb68c98c
--- /dev/null
+++ b/test/test_suite7/functions/static_vars.c3t
@@ -0,0 +1,23 @@
+module foo;
+
+fn int test()
+{
+    static int x = 1;
+    tlocal int y = 2;
+    x++;
+    return x;
+}
+
+/* #expect: foo.ll
+
+@test.x = internal unnamed_addr global i32 1, align 4
+@test.y = internal thread_local(localdynamic) unnamed_addr global i32 2, align 4
+
+define i32 @foo.test() #0 {
+entry:
+  %0 = load i32, ptr @test.x, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr @test.x, align 4
+  %1 = load i32, ptr @test.x, align 4
+  ret i32 %1
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/test_regression.c3t b/test/test_suite7/functions/test_regression.c3t
new file mode 100644
index 000000000..1ce3dda56
--- /dev/null
+++ b/test/test_suite7/functions/test_regression.c3t
@@ -0,0 +1,582 @@
+// #target: macos-x64
+
+module test;
+import test2;
+import std::collections::list;
+import std::collections::linkedlist;
+import hello_world;
+
+
+extern fn int printf(char *, ...);
+
+fn void helloWorld()
+{
+    printf("helloWorld!\n");
+}
+fn int test_static()
+{
+    static int x = 1;
+    x++;
+    printf("Test static %d\n", x);
+    return x;
+}
+
+struct Bobo { short b; float c; short d; short e; float f; short g; }
+
+
+struct Blob { int z; int f; }
+
+union Foor
+{
+    long a;
+    char[12] b;
+}
+
+
+fn int helo(double d, Bobo b)
+{
+    int[3] de = { 1, 2, 3 };
+    Bobo c = b;
+    helo(1.0, c);
+    return 1;
+}
+
+
+fn int test1(int a, int b)
+{
+    a = a >> b;
+    if (b > 128) return -1;
+    return a;
+}
+
+struct Foo2
+{
+    int x;
+}
+
+fn void Foo2.printme(Foo2 *foo)
+{
+    printf("Foo is: %d\n", foo.x);
+}
+
+fn int Foo2.mutate(Foo2 *foo)
+{
+    printf("Mutating");
+    return ++foo.x;
+}
+
+def oopsInt = test2::argh(<int>);
+def oopsDouble = test2::argh(<int>);
+def Argh = fn int(double, Bobo);
+def Argh2 = fn int(double, Bobo);
+
+
+
+fn int sum_us(int... x)
+{
+    int sum = 0;
+    if (x.len == 0) return 0;
+    sum += x[0] + sum_us(...x[1..^1]);
+    return sum;
+}
+
+def Frob = long;
+
+fn int sumd(int[] x)
+{
+    int sum = 0;
+    for (int i = 0; i < x.len; i++) sum += x[i];
+    return sum;
+}
+
+struct Foo
+{
+    int a;
+    int b;
+}
+
+def getValueInt = test2::getValue(<int>);
+def getValueDouble = test2::getValue(<double>);
+def IntBlob = test2::Blob(<int>);
+def DoubleBlob = Blob(<double>);
+def getMultInt = test2::getMult(<int>);
+def getMultDouble = test2::getMult(<double>);
+
+def IntArray = List(<int>);
+def IntList = LinkedList(<int>);
+
+enum MyEnum : int
+{
+    HELO,
+    WORLD,
+    BYE
+}
+
+
+fn void main()
+{
+    test_static();
+    test_static();
+    test_static();
+    hello_world::hello();
+    IntList list;
+    list.push(10);
+    list.push(15);
+    list.push(30);
+    for (int i = 0; i < (int)(list.len()); i++)
+    {
+        printf("Element[%d]: %d\n", i, list.get(i));
+    }
+    list.free();
+
+    printf("Elements: %d\n", (int)(MyEnum.elements));
+
+    int elements = MyEnum.elements;
+    printf("Hello\n");
+    IntArray array;
+    array.push(100);
+    array.push(200);
+    array.push(400);
+    array.push(600);
+    array.insert_at(2, 300);
+    for (int i = 0; i < (int)(array.len()); i++)
+    {
+        printf("Element[%d]: %d\n", i, array.get(i));
+    }
+    array.free();
+    IntBlob a = { 42 };
+    DoubleBlob b = { 33.3 };
+    printf("a was %d\n", getValueInt(a));
+    printf("b was %f\n", getValueDouble(b));
+    printf("Mult int was %d\n", getMultInt(25));
+    printf("Mult double was %f\n", getMultDouble(3.3));
+
+
+    helloWorld();
+    Foo ddx;
+    int fro = 3;
+    int[4] x = { 1, 2, 3, 3 };
+    fro += printf("1Vararg4splatA: %d\n", sum_us(...x));
+    printf("%d\n", fro);
+    int[] z = &x;
+    int[3] de = { 1, 2, 3 };
+    printf("Vararg4splatB: %d\n", sum_us(...&x));
+    printf("Vararg4splatC: %d\n", sum_us(...z));
+    printf("Vararg4: %d\n", sum_us(1, 2, 4, 5));
+    printf("Vararg1: %d\n", sum_us(1));
+    printf("Vararg0: %d\n", sum_us());
+    Argh a1;
+    Argh2 b2;
+}
+
+module hello_world;
+import foo;
+
+extern fn int printf(char *, ...);
+def doubleMult = foo::check(<double>);
+
+fn void hello()
+{
+    printf("Hello baby\n");
+    printf("Mult %f\n", doubleMult(11.1));
+}
+
+module foo(<Type>);
+
+fn Type check(Type i)
+{
+    return i * i;
+}
+
+module test2(<Type>);
+
+struct Blob
+{
+    Type a;
+}
+
+fn Type getMult(Type a)
+{
+    return a * a;
+}
+Type argh = 234;
+
+fault MyErr
+{
+    X,
+    Y
+}
+
+enum Hello : int
+{
+    FOO,
+    BAR,
+}
+
+macro Hello wut()
+{
+    return Hello.FOO;
+}
+
+def Bye = Hello;
+def wat = wut;
+def byebye = hello;
+
+fn int hello()
+{
+    return 1;
+}
+
+fn Type getValue(Blob blob)
+{
+    return blob.a;
+}
+
+/* #expect: test.ll
+
+%Blob = type { i32 }
+%Blob.0 = type { double }
+%Bobo = type { i16, float, i16, i16, float, i16 }
+%"int[]" = type { ptr, i64 }
+%LinkedList = type { %any, i64, ptr, ptr }
+%any = type { ptr, i64 }
+%List = type { i64, i64, %any, ptr }
+%Foo = type { i32, i32 }
+
+@"$ct.test.Bobo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 20, i64 0, i64 6, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Blob" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Foor" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Foo2" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.MyEnum" = linkonce global { i8, i64, ptr, i64, i64, i64, [3 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.int" to i64), i64 3, [3 x %"char[]"] [%"char[]" { ptr @.enum.HELO, i64 4 }, %"char[]" { ptr @.enum.WORLD, i64 5 }, %"char[]" { ptr @.enum.BYE, i64 3 }] }, align 8
+@test_static.x = internal unnamed_addr global i32 1, align 4
+
+define void @test.Foo2.printme(ptr %0) #0 {
+entry:
+  %1 = load i32, ptr %0, align 4
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.21, i32 %1)
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.Foo2.mutate(ptr %0) #0 {
+entry:
+  %1 = call i32 (ptr, ...) @printf(ptr @.str.22)
+  %2 = load i32, ptr %0, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %0, align 4
+  ret i32 %add
+}
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+define void @test.helloWorld() #0 {
+entry:
+  %0 = call i32 (ptr, ...) @printf(ptr @.str)
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.test_static() #0 {
+entry:
+  %0 = load i32, ptr @test_static.x, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr @test_static.x, align 4
+  %1 = load i32, ptr @test_static.x, align 4
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %1)
+  %3 = load i32, ptr @test_static.x, align 4
+  ret i32 %3
+}
+
+; Function Attrs:
+define i32 @test.helo(double %0, ptr byval(%Bobo) align 8 %1) #0 {
+entry:
+  %de = alloca [3 x i32], align 4
+  %c = alloca %Bobo, align 4
+  %indirectarg = alloca %Bobo, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %de, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %c, ptr align 4 %1, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 4 %c, i32 20, i1 false)
+  %2 = call i32 @test.helo(double 1.000000e+00, ptr byval(%Bobo) align 8 %indirectarg)
+  ret i32 1
+}
+
+; Function Attrs:
+define i32 @test.test1(i32 %0, i32 %1) #0 {
+entry:
+  %a = alloca i32, align 4
+  store i32 %0, ptr %a, align 4
+  %2 = load i32, ptr %a, align 4
+  %ashr = ashr i32 %2, %1
+  %3 = freeze i32 %ashr
+  store i32 %3, ptr %a, align 4
+  %gt = icmp sgt i32 %1, 128
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i32 -1
+
+if.exit:                                          ; preds = %entry
+  %4 = load i32, ptr %a, align 4
+  ret i32 %4
+}
+
+; Function Attrs:
+define i32 @test.sum_us(ptr %0, i64 %1) #0 {
+entry:
+  %x = alloca %"int[]", align 8
+  %sum = alloca i32, align 4
+  store ptr %0, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  store i32 0, ptr %sum, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  %2 = load i64, ptr %ptradd1, align 8
+  %eq = icmp eq i64 0, %2
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i32 0
+
+if.exit:                                          ; preds = %entry
+  %3 = load i32, ptr %sum, align 4
+  %4 = load ptr, ptr %x, align 8
+  %5 = load i32, ptr %4, align 4
+  %6 = load %"int[]", ptr %x, align 8
+  %7 = extractvalue %"int[]" %6, 0
+  %8 = extractvalue %"int[]" %6, 1
+  %sub = sub i64 %8, 1
+  %9 = add i64 %sub, 1
+  %size = sub i64 %9, 1
+  %ptradd2 = getelementptr inbounds i8, ptr %7, i64 4
+  %10 = insertvalue %"int[]" undef, ptr %ptradd2, 0
+  %11 = insertvalue %"int[]" %10, i64 %size, 1
+  %12 = call i32 @test.sum_us(ptr %ptradd2, i64 %size)
+  %add = add i32 %5, %12
+  %add3 = add i32 %3, %add
+  store i32 %add3, ptr %sum, align 4
+  %13 = load i32, ptr %sum, align 4
+  ret i32 %13
+}
+
+; Function Attrs:
+define i32 @test.sumd(ptr %0, i64 %1) #0 {
+entry:
+  %x = alloca %"int[]", align 8
+  %sum = alloca i32, align 4
+  %i = alloca i32, align 4
+  store ptr %0, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  store i32 0, ptr %sum, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %2 = load i32, ptr %i, align 4
+  %sext = sext i32 %2 to i64
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  %3 = load i64, ptr %ptradd1, align 8
+  %lt = icmp slt i64 %sext, %3
+  %check = icmp slt i64 %3, 0
+  %siui-lt = or i1 %check, %lt
+  br i1 %siui-lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load i32, ptr %sum, align 4
+  %5 = load ptr, ptr %x, align 8
+  %6 = load i32, ptr %i, align 4
+  %sext2 = sext i32 %6 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %5, i64 %sext2
+  %7 = load i32, ptr %ptroffset, align 4
+  %add = add i32 %4, %7
+  store i32 %add, ptr %sum, align 4
+  %8 = load i32, ptr %i, align 4
+  %add3 = add i32 %8, 1
+  store i32 %add3, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %9 = load i32, ptr %sum, align 4
+  ret i32 %9
+}
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %list = alloca %LinkedList, align 8
+  %i = alloca i32, align 4
+  %elements = alloca i32, align 4
+  %array = alloca %List, align 8
+  %i1 = alloca i32, align 4
+  %a = alloca %Blob, align 4
+  %b = alloca %Blob.0, align 8
+  %ddx = alloca %Foo, align 4
+  %fro = alloca i32, align 4
+  %x = alloca [4 x i32], align 16
+  %z = alloca %"int[]", align 8
+  %de = alloca [3 x i32], align 4
+  %varargslots = alloca [4 x i32], align 16
+  %varargslots14 = alloca [1 x i32], align 4
+  %a1 = alloca ptr, align 8
+  %b2 = alloca ptr, align 8
+  %0 = call i32 @test.test_static()
+  %1 = call i32 @test.test_static()
+  %2 = call i32 @test.test_static()
+  call void @hello_world.hello()
+  call void @llvm.memset.p0.i64(ptr align 8 %list, i8 0, i64 40, i1 false)
+  call void @"std_collections_linkedlist$int$.LinkedList.push"(ptr %list, i32 10)
+  call void @"std_collections_linkedlist$int$.LinkedList.push"(ptr %list, i32 15)
+  call void @"std_collections_linkedlist$int$.LinkedList.push"(ptr %list, i32 30)
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %3 = load i32, ptr %i, align 4
+  %4 = call i64 @"std_collections_linkedlist$int$.LinkedList.len"(ptr %list) #3
+  %trunc = trunc i64 %4 to i32
+  %lt = icmp slt i32 %3, %trunc
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %5 = load i32, ptr %i, align 4
+  %sext = sext i32 %5 to i64
+  %6 = call i32 @"std_collections_linkedlist$int$.LinkedList.get"(ptr %list, i64 %sext)
+  %7 = load i32, ptr %i, align 4
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.2, i32 %7, i32 %6)
+  %9 = load i32, ptr %i, align 4
+  %add = add i32 %9, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  call void @"std_collections_linkedlist$int$.LinkedList.free"(ptr %list)
+  %10 = call i32 (ptr, ...) @printf(ptr @.str.3, i32 3)
+  store i32 3, ptr %elements, align 4
+  %11 = call i32 (ptr, ...) @printf(ptr @.str.4)
+  call void @llvm.memset.p0.i64(ptr align 8 %array, i8 0, i64 40, i1 false)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 100)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 200)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 400)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 600) #3
+  call void @"std_collections_list$int$.List.insert_at"(ptr %array, i64 2, i32 300)
+  store i32 0, ptr %i1, align 4
+  br label %loop.cond2
+
+loop.cond2:                                       ; preds = %loop.body5, %loop.exit
+  %12 = load i32, ptr %i1, align 4
+  %13 = call i64 @"std_collections_list$int$.List.len"(ptr %array) #3
+  %trunc3 = trunc i64 %13 to i32
+  %lt4 = icmp slt i32 %12, %trunc3
+  br i1 %lt4, label %loop.body5, label %loop.exit8
+
+loop.body5:                                       ; preds = %loop.cond2
+  %14 = load i32, ptr %i1, align 4
+  %sext6 = sext i32 %14 to i64
+  %15 = call i32 @"std_collections_list$int$.List.get"(ptr %array, i64 %sext6) #3
+  %16 = load i32, ptr %i1, align 4
+  %17 = call i32 (ptr, ...) @printf(ptr @.str.5, i32 %16, i32 %15)
+  %18 = load i32, ptr %i1, align 4
+  %add7 = add i32 %18, 1
+  store i32 %add7, ptr %i1, align 4
+  br label %loop.cond2
+
+loop.exit8:                                       ; preds = %loop.cond2
+  call void @"std_collections_list$int$.List.free"(ptr %array)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a, ptr align 4 @.__const.6, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %b, ptr align 8 @.__const.7, i32 8, i1 false)
+  %19 = load i32, ptr %a, align 4
+  %20 = call i32 @"test2$int$.getValue"(i32 %19)
+  %21 = call i32 (ptr, ...) @printf(ptr @.str.8, i32 %20)
+  %22 = load double, ptr %b, align 8
+  %23 = call double @"test2$double$.getValue"(double %22)
+  %24 = call i32 (ptr, ...) @printf(ptr @.str.9, double %23)
+  %25 = call i32 @"test2$int$.getMult"(i32 25)
+  %26 = call i32 (ptr, ...) @printf(ptr @.str.10, i32 %25)
+  %27 = call double @"test2$double$.getMult"(double 3.300000e+00)
+  %28 = call i32 (ptr, ...) @printf(ptr @.str.11, double %27)
+  call void @test.helloWorld()
+  store i32 0, ptr %ddx, align 4
+  %ptradd = getelementptr inbounds i8, ptr %ddx, i64 4
+  store i32 0, ptr %ptradd, align 4
+  store i32 3, ptr %fro, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x, ptr align 16 @.__const.12, i32 16, i1 false)
+  %29 = load i32, ptr %fro, align 4
+  %30 = insertvalue %"int[]" undef, ptr %x, 0
+  %31 = insertvalue %"int[]" %30, i64 4, 1
+  %32 = call i32 @test.sum_us(ptr %x, i64 4)
+  %33 = call i32 (ptr, ...) @printf(ptr @.str.13, i32 %32)
+  %add9 = add i32 %29, %33
+  store i32 %add9, ptr %fro, align 4
+  %34 = load i32, ptr %fro, align 4
+  %35 = call i32 (ptr, ...) @printf(ptr @.str.14, i32 %34)
+  %36 = insertvalue %"int[]" undef, ptr %x, 0
+  %37 = insertvalue %"int[]" %36, i64 4, 1
+  store %"int[]" %37, ptr %z, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %de, ptr align 4 @.__const.15, i32 12, i1 false)
+  %38 = insertvalue %"int[]" undef, ptr %x, 0
+  %39 = insertvalue %"int[]" %38, i64 4, 1
+  %40 = call i32 @test.sum_us(ptr %x, i64 4)
+  %41 = call i32 (ptr, ...) @printf(ptr @.str.16, i32 %40)
+  %lo = load ptr, ptr %z, align 8
+  %ptradd10 = getelementptr inbounds i8, ptr %z, i64 8
+  %hi = load i64, ptr %ptradd10, align 8
+  %42 = call i32 @test.sum_us(ptr %lo, i64 %hi)
+  %43 = call i32 (ptr, ...) @printf(ptr @.str.17, i32 %42)
+  store i32 1, ptr %varargslots, align 4
+  %ptradd11 = getelementptr inbounds i8, ptr %varargslots, i64 4
+  store i32 2, ptr %ptradd11, align 4
+  %ptradd12 = getelementptr inbounds i8, ptr %varargslots, i64 8
+  store i32 4, ptr %ptradd12, align 4
+  %ptradd13 = getelementptr inbounds i8, ptr %varargslots, i64 12
+  store i32 5, ptr %ptradd13, align 4
+  %44 = call i32 @test.sum_us(ptr %varargslots, i64 4)
+  %45 = call i32 (ptr, ...) @printf(ptr @.str.18, i32 %44)
+  store i32 1, ptr %varargslots14, align 4
+  %46 = call i32 @test.sum_us(ptr %varargslots14, i64 1)
+  %47 = call i32 (ptr, ...) @printf(ptr @.str.19, i32 %46)
+  %48 = call i32 @test.sum_us(ptr null, i64 0)
+  %49 = call i32 (ptr, ...) @printf(ptr @.str.20, i32 %48)
+  store ptr null, ptr %a1, align 8
+  store ptr null, ptr %b2, align 8
+  ret void
+}
+// #expect: hello_world.ll
+
+define void @hello_world.hello()
+entry:
+  %0 = call i32 (ptr, ...) @printf(ptr @.str)
+  %1 = call double @"foo$double$.check"(double 1.110000e+01)
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.1, double %1)
+  ret void
+
+// #expect: foo.double.ll
+
+define weak double @"foo$double$.check"(double %0)
+entry:
+  %fmul = fmul double %0, %0
+  ret double %fmul
+
+// #expect: test2.double.ll
+
+%Blob = type { double }
+@"test2$double$.argh" = weak local_unnamed_addr global double 2.340000e+02, align 8
+
+define weak double @"test2$double$.getMult"(double %0)
+entry:
+  %fmul = fmul double %0, %0
+  ret double %fmul
+
+define weak i32 @"test2$double$.hello"()
+entry:
+  ret i32 1
+
+define weak double @"test2$double$.getValue"(double %0)
+entry:
+  %blob = alloca %Blob, align 8
+  store double %0, ptr %blob, align 8
+  %1 = load double, ptr %blob, align 8
+  ret double %1
diff --git a/test/test_suite7/functions/test_regression_mingw.c3t b/test/test_suite7/functions/test_regression_mingw.c3t
new file mode 100644
index 000000000..523a58acc
--- /dev/null
+++ b/test/test_suite7/functions/test_regression_mingw.c3t
@@ -0,0 +1,650 @@
+// #target: mingw-x64
+
+module test;
+import test2;
+import std::collections::list;
+import std::collections::linkedlist;
+import hello_world;
+
+
+extern fn int printf(char *, ...);
+
+fn void helloWorld()
+{
+    printf("helloWorld!\n");
+}
+fn int test_static()
+{
+    static int x = 1;
+    x++;
+    printf("Test static %d\n", x);
+    return x;
+}
+
+struct Bobo { short b; float c; short d; short e; float f; short g; }
+
+
+struct Blob { int z; int f; }
+
+union Foor
+{
+    long a;
+    char[12] b;
+}
+
+
+fn int helo(double d, Bobo b)
+{
+    int[3] de = { 1, 2, 3 };
+    Bobo c = b;
+    helo(1.0, c);
+    return 1;
+}
+
+
+fn int test1(int a, int b)
+{
+    a = a >> b;
+    if (b > 128) return -1;
+    return a;
+}
+
+struct Foo2
+{
+    int x;
+}
+
+fn void Foo2.printme(Foo2 *foo)
+{
+    printf("Foo is: %d\n", foo.x);
+}
+
+fn int Foo2.mutate(Foo2 *foo)
+{
+    printf("Mutating");
+    return ++foo.x;
+}
+
+
+
+def oopsInt = test2::argh(<int>);
+def oopsDouble = test2::argh(<int>);
+def Argh = fn int(double, Bobo);
+def Argh2 = fn int(double, Bobo);
+
+
+
+fn int sum_us(int... x)
+{
+    int sum = 0;
+    if (x.len == 0) return 0;
+    sum += x[0] + sum_us(...x[1..^1]);
+    return sum;
+}
+
+def Frob = long;
+
+fn int sumd(int[] x)
+{
+    int sum = 0;
+    for (int i = 0; i < x.len; i++) sum += x[i];
+    return sum;
+}
+
+struct Foo
+{
+    int a;
+    int b;
+}
+
+def getValueInt = test2::getValue(<int>);
+def getValueDouble = test2::getValue(<double>);
+def IntBlob = test2::Blob(<int>);
+def DoubleBlob = Blob(<double>);
+def getMultInt = test2::getMult(<int>);
+def getMultDouble = test2::getMult(<double>);
+
+def IntArray = List(<int>);
+def IntList = LinkedList(<int>);
+
+enum MyEnum : int
+{
+    HELO,
+    WORLD,
+    BYE
+}
+
+
+fn void main()
+{
+    test_static();
+    test_static();
+    test_static();
+    hello_world::hello();
+    IntList list;
+    list.push(10);
+    list.push(15);
+    list.push(30);
+    for (int i = 0; i < (int)(list.len()); i++)
+    {
+        printf("Element[%d]: %d\n", i, list.get(i));
+    }
+    list.free();
+
+    printf("Elements: %d\n", (int)(MyEnum.elements));
+
+    int elements = MyEnum.elements;
+    printf("Hello\n");
+    IntArray array;
+    array.push(100);
+    array.push(200);
+    array.push(400);
+    array.push(600);
+    array.insert_at(2, 300);
+    for (int i = 0; i < (int)(array.len()); i++)
+    {
+        printf("Element[%d]: %d\n", i, array.get(i));
+    }
+    array.free();
+    IntBlob a = { 42 };
+    DoubleBlob b = { 33.3 };
+    printf("a was %d\n", getValueInt(a));
+    printf("b was %f\n", getValueDouble(b));
+    printf("Mult int was %d\n", getMultInt(25));
+    printf("Mult double was %f\n", getMultDouble(3.3));
+
+
+    helloWorld();
+    Foo ddx;
+    int fro = 3;
+    int[4] x = { 1, 2, 3, 3 };
+    fro += printf("1Vararg4splatA: %d\n", sum_us(...x));
+    printf("%d\n", fro);
+    int[] z = &x;
+    int[3] de = { 1, 2, 3 };
+    printf("Vararg4splatB: %d\n", sum_us(...&x));
+    printf("Vararg4splatC: %d\n", sum_us(...z));
+    printf("Vararg4: %d\n", sum_us(1, 2, 4, 5));
+    printf("Vararg1: %d\n", sum_us(1));
+    printf("Vararg0: %d\n", sum_us());
+    Argh a1;
+    Argh2 b2;
+}
+
+module hello_world;
+import foo;
+
+extern fn int printf(char *, ...);
+def doubleMult = foo::check(<double>);
+
+fn void hello()
+{
+    printf("Hello baby\n");
+    printf("Mult %f\n", doubleMult(11.1));
+}
+
+module foo(<Type>);
+
+fn Type check(Type i)
+{
+    return i * i;
+}
+
+module test2(<Type>);
+
+struct Blob
+{
+    Type a;
+}
+
+fn Type getMult(Type a)
+{
+    return a * a;
+}
+Type argh = 234;
+
+fault MyErr
+{
+    X,
+    Y
+}
+
+enum Hello : int
+{
+    FOO,
+    BAR,
+}
+
+macro Hello wut()
+{
+    return Hello.FOO;
+}
+
+def Bye = Hello;
+def wat = wut;
+def byebye = hello;
+
+fn int hello()
+{
+    return 1;
+}
+
+fn Type getValue(Blob blob)
+{
+    return blob.a;
+}
+
+/* #expect: test.ll
+
+%Blob = type { i32 }
+%Blob.0 = type { double }
+%Bobo = type { i16, float, i16, i16, float, i16 }
+%"int[]" = type { ptr, i64 }
+%LinkedList = type { %any, i64, ptr, ptr }
+%any = type { ptr, i64 }
+%List = type { i64, i64, %any, ptr }
+%Foo = type { i32, i32 }
+
+$"$ct.test.Bobo" = comdat any
+
+$"$ct.test.Blob" = comdat any
+
+$"$ct.test.Foor" = comdat any
+
+$"$ct.test.Foo2" = comdat any
+
+$"$ct.test.Foo" = comdat any
+
+$"$ct.int" = comdat any
+
+$"$ct.test.MyEnum" = comdat any
+
+@"$ct.test.Bobo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 20, i64 0, i64 6, [0 x i64] zeroinitializer }, comdat, align 8
+@"$ct.test.Blob" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, comdat, align 8
+@"$ct.test.Foor" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, comdat, align 8
+@"$ct.test.Foo2" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, comdat, align 8
+@"$ct.test.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, comdat, align 8
+@.enum.HELO = internal constant [5 x i8] c"HELO\00", align 1
+@.enum.WORLD = internal constant [6 x i8] c"WORLD\00", align 1
+@.enum.BYE = internal constant [4 x i8] c"BYE\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, comdat, align 8
+@"$ct.test.MyEnum" = linkonce global { i8, i64, ptr, i64, i64, i64, [3 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.int" to i64), i64 3, [3 x %"char[]"] [%"char[]" { ptr @.enum.HELO, i64 4 }, %"char[]" { ptr @.enum.WORLD, i64 5 }, %"char[]" { ptr @.enum.BYE, i64 3 }] }, comdat, align 8
+@.str = private unnamed_addr constant [13 x i8] c"helloWorld!\0A\00", align 1
+@test_static.x = internal unnamed_addr global i32 1, align 4
+@.str.1 = private unnamed_addr constant [16 x i8] c"Test static %d\0A\00", align 1
+@.__const = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@.str.2 = private unnamed_addr constant [17 x i8] c"Element[%d]: %d\0A\00", align 1
+@.str.3 = private unnamed_addr constant [14 x i8] c"Elements: %d\0A\00", align 1
+@.str.4 = private unnamed_addr constant [7 x i8] c"Hello\0A\00", align 1
+@.str.5 = private unnamed_addr constant [17 x i8] c"Element[%d]: %d\0A\00", align 1
+@.__const.6 = private unnamed_addr constant %Blob { i32 42 }, align 4
+@.__const.7 = private unnamed_addr constant %Blob.0 { double 3.330000e+01 }, align 8
+@.str.8 = private unnamed_addr constant [10 x i8] c"a was %d\0A\00", align 1
+@.str.9 = private unnamed_addr constant [10 x i8] c"b was %f\0A\00", align 1
+@.str.10 = private unnamed_addr constant [17 x i8] c"Mult int was %d\0A\00", align 1
+@.str.11 = private unnamed_addr constant [20 x i8] c"Mult double was %f\0A\00", align 1
+@.__const.12 = private unnamed_addr constant [4 x i32] [i32 1, i32 2, i32 3, i32 3], align 16
+@.str.13 = private unnamed_addr constant [20 x i8] c"1Vararg4splatA: %d\0A\00", align 1
+@.str.14 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@.__const.15 = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@.str.16 = private unnamed_addr constant [19 x i8] c"Vararg4splatB: %d\0A\00", align 1
+@.str.17 = private unnamed_addr constant [19 x i8] c"Vararg4splatC: %d\0A\00", align 1
+@.str.18 = private unnamed_addr constant [13 x i8] c"Vararg4: %d\0A\00", align 1
+@.str.19 = private unnamed_addr constant [13 x i8] c"Vararg1: %d\0A\00", align 1
+@.str.20 = private unnamed_addr constant [13 x i8] c"Vararg0: %d\0A\00", align 1
+@.str.21 = private unnamed_addr constant [12 x i8] c"Foo is: %d\0A\00", align 1
+@.str.22 = private unnamed_addr constant [9 x i8] c"Mutating\00", align 1
+
+; Function Attrs:
+define void @test.Foo2.printme(ptr %0) #0 {
+entry:
+  %1 = load i32, ptr %0, align 4
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.21, i32 %1)
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.Foo2.mutate(ptr %0) #0 {
+entry:
+  %1 = call i32 (ptr, ...) @printf(ptr @.str.22)
+  %2 = load i32, ptr %0, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %0, align 4
+  ret i32 %add
+}
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+define void @test.helloWorld() #0 {
+entry:
+  %0 = call i32 (ptr, ...) @printf(ptr @.str)
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.test_static() #0 {
+entry:
+  %0 = load i32, ptr @test_static.x, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr @test_static.x, align 4
+  %1 = load i32, ptr @test_static.x, align 4
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %1)
+  %3 = load i32, ptr @test_static.x, align 4
+  ret i32 %3
+}
+
+; Function Attrs:
+define i32 @test.helo(double %0, ptr align 4 %1) #0 {
+entry:
+  %de = alloca [3 x i32], align 4
+  %c = alloca %Bobo, align 4
+  %indirectarg = alloca %Bobo, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %de, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %c, ptr align 4 %1, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %indirectarg, ptr align 4 %c, i32 20, i1 false)
+  %2 = call i32 @test.helo(double 1.000000e+00, ptr align 4 %indirectarg)
+  ret i32 1
+}
+
+; Function Attrs:
+define i32 @test.test1(i32 %0, i32 %1) #0 {
+entry:
+  %a = alloca i32, align 4
+  store i32 %0, ptr %a, align 4
+  %2 = load i32, ptr %a, align 4
+  %ashr = ashr i32 %2, %1
+  %3 = freeze i32 %ashr
+  store i32 %3, ptr %a, align 4
+  %gt = icmp sgt i32 %1, 128
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i32 -1
+
+if.exit:                                          ; preds = %entry
+  %4 = load i32, ptr %a, align 4
+  ret i32 %4
+}
+
+; Function Attrs:
+define i32 @test.sum_us(ptr align 8 %0) #0 {
+entry:
+  %sum = alloca i32, align 4
+  %indirectarg = alloca %"int[]", align 8
+  store i32 0, ptr %sum, align 4
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 8
+  %1 = load i64, ptr %ptradd, align 8
+  %eq = icmp eq i64 0, %1
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  ret i32 0
+
+if.exit:                                          ; preds = %entry
+  %2 = load i32, ptr %sum, align 4
+  %3 = load ptr, ptr %0, align 8
+  %4 = load i32, ptr %3, align 4
+  %5 = load %"int[]", ptr %0, align 8
+  %6 = extractvalue %"int[]" %5, 0
+  %7 = extractvalue %"int[]" %5, 1
+  %sub = sub i64 %7, 1
+  %8 = add i64 %sub, 1
+  %size = sub i64 %8, 1
+  %ptradd1 = getelementptr inbounds i8, ptr %6, i64 4
+  %9 = insertvalue %"int[]" undef, ptr %ptradd1, 0
+  %10 = insertvalue %"int[]" %9, i64 %size, 1
+  store %"int[]" %10, ptr %indirectarg, align 8
+  %11 = call i32 @test.sum_us(ptr align 8 %indirectarg)
+  %add = add i32 %4, %11
+  %add2 = add i32 %2, %add
+  store i32 %add2, ptr %sum, align 4
+  %12 = load i32, ptr %sum, align 4
+  ret i32 %12
+}
+
+; Function Attrs:
+define i32 @test.sumd(ptr align 8 %0) #0 {
+entry:
+  %sum = alloca i32, align 4
+  %i = alloca i32, align 4
+  store i32 0, ptr %sum, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i32, ptr %i, align 4
+  %sext = sext i32 %1 to i64
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 8
+  %2 = load i64, ptr %ptradd, align 8
+  %lt = icmp slt i64 %sext, %2
+  %check = icmp slt i64 %2, 0
+  %siui-lt = or i1 %check, %lt
+  br i1 %siui-lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %3 = load i32, ptr %sum, align 4
+  %4 = load ptr, ptr %0, align 8
+  %5 = load i32, ptr %i, align 4
+  %sext1 = sext i32 %5 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %4, i64 %sext1
+  %6 = load i32, ptr %ptroffset, align 4
+  %add = add i32 %3, %6
+  store i32 %add, ptr %sum, align 4
+  %7 = load i32, ptr %i, align 4
+  %add2 = add i32 %7, 1
+  store i32 %add2, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %8 = load i32, ptr %sum, align 4
+  ret i32 %8
+}
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %list = alloca %LinkedList, align 8
+  %i = alloca i32, align 4
+  %elements = alloca i32, align 4
+  %array = alloca %List, align 8
+  %i1 = alloca i32, align 4
+  %a = alloca %Blob, align 4
+  %b = alloca %Blob.0, align 8
+  %ddx = alloca %Foo, align 4
+  %fro = alloca i32, align 4
+  %x = alloca [4 x i32], align 16
+  %indirectarg = alloca %"int[]", align 8
+  %z = alloca %"int[]", align 8
+  %de = alloca [3 x i32], align 4
+  %indirectarg10 = alloca %"int[]", align 8
+  %indirectarg11 = alloca %"int[]", align 8
+  %varargslots = alloca [4 x i32], align 16
+  %indirectarg15 = alloca %"int[]", align 8
+  %varargslots16 = alloca [1 x i32], align 4
+  %indirectarg18 = alloca %"int[]", align 8
+  %indirectarg19 = alloca %"int[]", align 8
+  %a1 = alloca ptr, align 8
+  %b2 = alloca ptr, align 8
+  %0 = call i32 @test.test_static()
+  %1 = call i32 @test.test_static()
+  %2 = call i32 @test.test_static()
+  call void @hello_world.hello()
+  call void @llvm.memset.p0.i64(ptr align 8 %list, i8 0, i64 40, i1 false)
+  call void @"std_collections_linkedlist$int$.LinkedList.push"(ptr %list, i32 10)
+  call void @"std_collections_linkedlist$int$.LinkedList.push"(ptr %list, i32 15)
+  call void @"std_collections_linkedlist$int$.LinkedList.push"(ptr %list, i32 30)
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %3 = load i32, ptr %i, align 4
+  %4 = call i64 @"std_collections_linkedlist$int$.LinkedList.len"(ptr %list) #3
+  %trunc = trunc i64 %4 to i32
+  %lt = icmp slt i32 %3, %trunc
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %5 = load i32, ptr %i, align 4
+  %sext = sext i32 %5 to i64
+  %6 = call i32 @"std_collections_linkedlist$int$.LinkedList.get"(ptr %list, i64 %sext)
+  %7 = load i32, ptr %i, align 4
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.2, i32 %7, i32 %6)
+  %9 = load i32, ptr %i, align 4
+  %add = add i32 %9, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  call void @"std_collections_linkedlist$int$.LinkedList.free"(ptr %list)
+  %10 = call i32 (ptr, ...) @printf(ptr @.str.3, i32 3)
+  store i32 3, ptr %elements, align 4
+  %11 = call i32 (ptr, ...) @printf(ptr @.str.4)
+  call void @llvm.memset.p0.i64(ptr align 8 %array, i8 0, i64 40, i1 false)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 100)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 200)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 400)
+  call void @"std_collections_list$int$.List.push"(ptr %array, i32 600) #3
+  call void @"std_collections_list$int$.List.insert_at"(ptr %array, i64 2, i32 300)
+  store i32 0, ptr %i1, align 4
+  br label %loop.cond2
+
+loop.cond2:                                       ; preds = %loop.body5, %loop.exit
+  %12 = load i32, ptr %i1, align 4
+  %13 = call i64 @"std_collections_list$int$.List.len"(ptr %array) #3
+  %trunc3 = trunc i64 %13 to i32
+  %lt4 = icmp slt i32 %12, %trunc3
+  br i1 %lt4, label %loop.body5, label %loop.exit8
+
+loop.body5:                                       ; preds = %loop.cond2
+  %14 = load i32, ptr %i1, align 4
+  %sext6 = sext i32 %14 to i64
+  %15 = call i32 @"std_collections_list$int$.List.get"(ptr %array, i64 %sext6) #3
+  %16 = load i32, ptr %i1, align 4
+  %17 = call i32 (ptr, ...) @printf(ptr @.str.5, i32 %16, i32 %15)
+  %18 = load i32, ptr %i1, align 4
+  %add7 = add i32 %18, 1
+  store i32 %add7, ptr %i1, align 4
+  br label %loop.cond2
+
+loop.exit8:                                       ; preds = %loop.cond2
+  call void @"std_collections_list$int$.List.free"(ptr %array)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a, ptr align 4 @.__const.6, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %b, ptr align 8 @.__const.7, i32 8, i1 false)
+  %19 = load i32, ptr %a, align 4
+  %20 = call i32 @"test2$int$.getValue"(i32 %19)
+  %21 = call i32 (ptr, ...) @printf(ptr @.str.8, i32 %20)
+  %22 = load i64, ptr %b, align 8
+  %23 = call double @"test2$double$.getValue"(i64 %22)
+  %24 = call i32 (ptr, ...) @printf(ptr @.str.9, double %23)
+  %25 = call i32 @"test2$int$.getMult"(i32 25)
+  %26 = call i32 (ptr, ...) @printf(ptr @.str.10, i32 %25)
+  %27 = call double @"test2$double$.getMult"(double 3.300000e+00)
+  %28 = call i32 (ptr, ...) @printf(ptr @.str.11, double %27)
+  call void @test.helloWorld()
+  store i32 0, ptr %ddx, align 4
+  %ptradd = getelementptr inbounds i8, ptr %ddx, i64 4
+  store i32 0, ptr %ptradd, align 4
+  store i32 3, ptr %fro, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x, ptr align 16 @.__const.12, i32 16, i1 false)
+  %29 = load i32, ptr %fro, align 4
+  %30 = insertvalue %"int[]" undef, ptr %x, 0
+  %31 = insertvalue %"int[]" %30, i64 4, 1
+  store %"int[]" %31, ptr %indirectarg, align 8
+  %32 = call i32 @test.sum_us(ptr align 8 %indirectarg)
+  %33 = call i32 (ptr, ...) @printf(ptr @.str.13, i32 %32)
+  %add9 = add i32 %29, %33
+  store i32 %add9, ptr %fro, align 4
+  %34 = load i32, ptr %fro, align 4
+  %35 = call i32 (ptr, ...) @printf(ptr @.str.14, i32 %34)
+  %36 = insertvalue %"int[]" undef, ptr %x, 0
+  %37 = insertvalue %"int[]" %36, i64 4, 1
+  store %"int[]" %37, ptr %z, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %de, ptr align 4 @.__const.15, i32 12, i1 false)
+  %38 = insertvalue %"int[]" undef, ptr %x, 0
+  %39 = insertvalue %"int[]" %38, i64 4, 1
+  store %"int[]" %39, ptr %indirectarg10, align 8
+  %40 = call i32 @test.sum_us(ptr align 8 %indirectarg10)
+  %41 = call i32 (ptr, ...) @printf(ptr @.str.16, i32 %40)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg11, ptr align 8 %z, i32 16, i1 false)
+  %42 = call i32 @test.sum_us(ptr align 8 %indirectarg11)
+  %43 = call i32 (ptr, ...) @printf(ptr @.str.17, i32 %42)
+  store i32 1, ptr %varargslots, align 4
+  %ptradd12 = getelementptr inbounds i8, ptr %varargslots, i64 4
+  store i32 2, ptr %ptradd12, align 4
+  %ptradd13 = getelementptr inbounds i8, ptr %varargslots, i64 8
+  store i32 4, ptr %ptradd13, align 4
+  %ptradd14 = getelementptr inbounds i8, ptr %varargslots, i64 12
+  store i32 5, ptr %ptradd14, align 4
+  %44 = insertvalue %"int[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"int[]" %44, i64 4, 1
+  store %"int[]" %"$$temp", ptr %indirectarg15, align 8
+  %45 = call i32 @test.sum_us(ptr align 8 %indirectarg15)
+  %46 = call i32 (ptr, ...) @printf(ptr @.str.18, i32 %45)
+  store i32 1, ptr %varargslots16, align 4
+  %47 = insertvalue %"int[]" undef, ptr %varargslots16, 0
+  %"$$temp17" = insertvalue %"int[]" %47, i64 1, 1
+  store %"int[]" %"$$temp17", ptr %indirectarg18, align 8
+  %48 = call i32 @test.sum_us(ptr align 8 %indirectarg18)
+  %49 = call i32 (ptr, ...) @printf(ptr @.str.19, i32 %48)
+  store %"int[]" zeroinitializer, ptr %indirectarg19, align 8
+  %50 = call i32 @test.sum_us(ptr align 8 %indirectarg19)
+  %51 = call i32 (ptr, ...) @printf(ptr @.str.20, i32 %50)
+  store ptr null, ptr %a1, align 8
+  store ptr null, ptr %b2, align 8
+  ret void
+}
+declare void @llvm.memcpy.p0.p0.i32(ptr noalias
+declare void @hello_world.hello() #0
+declare void @llvm.memset.p0.i64(ptr
+declare void @"std_collections_linkedlist$int$.LinkedList.push"(ptr, i32) #0
+declare i64 @"std_collections_linkedlist$int$.LinkedList.len"(ptr) #0
+declare i32 @"std_collections_linkedlist$int$.LinkedList.get"(ptr, i64) #0
+declare void @"std_collections_linkedlist$int$.LinkedList.free"(ptr) #0
+declare void @"std_collections_list$int$.List.push"(ptr, i32) #0
+declare void @"std_collections_list$int$.List.insert_at"(ptr, i64, i32) #0
+declare i64 @"std_collections_list$int$.List.len"(ptr) #0
+declare i32 @"std_collections_list$int$.List.get"(ptr, i64) #0
+declare void @"std_collections_list$int$.List.free"(ptr) #0
+declare i32 @"test2$int$.getValue"(i32) #0
+declare double @"test2$double$.getValue"(i64) #0
+declare i32 @"test2$int$.getMult"(i32) #0
+declare double @"test2$double$.getMult"(double) #0
+
+// #expect: hello_world.ll
+
+define void @hello_world.hello() #0 {
+entry:
+  %0 = call i32 (ptr, ...) @printf(ptr @.str)
+  %1 = call double @"foo$double$.check"(double 1.110000e+01)
+  %2 = call i32 (ptr, ...) @printf(ptr @.str.1, double %1)
+  ret void
+}
+
+// #expect: foo.double.ll
+
+define weak_odr double @"foo$double$.check"(double %0)
+entry:
+  %fmul = fmul double %0, %0
+  ret double %fmul
+
+
+// #expect: test2.int.ll
+
+%Blob = type { i32 }
+@"test2$int$.argh" = weak_odr local_unnamed_addr global i32 234, comdat, align 4
+
+define weak_odr i32 @"test2$int$.getMult"(i32 %0)
+entry:
+  %mul = mul i32 %0, %0
+  ret i32 %mul
+
+!llvm.module.flags = !{!0, !1, !2, !3, !4, !5}
+
+!0 = !{i32 2, !"Dwarf Version", i32 4}
+!1 = !{i32 2, !"Debug Info Version", i32 3}
+!2 = !{i32 2, !"wchar_size", i32 4}
+!3 = !{i32 4, !"PIC Level", i32 2}
+!4 = !{i32 1, !"uwtable", i32 2}
+!5 = !{i32 2, !"frame-pointer", i32 2}
\ No newline at end of file
diff --git a/test/test_suite7/functions/too_many_params.c3 b/test/test_suite7/functions/too_many_params.c3
new file mode 100644
index 000000000..5b7a190ca
--- /dev/null
+++ b/test/test_suite7/functions/too_many_params.c3
@@ -0,0 +1,40 @@
+import std::io;
+def Tester = fn int(int x, int y, int z);
+
+fn int test1(
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 20
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 100
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 120
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 200
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 220
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 240
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // #error:  The number of params exceeded
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int // 300
+) { return 1; }
+
+fn int test2(
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 20
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 100
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 120
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 200
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 220
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 240
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // #error:  The number of params exceeded
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, //
+	int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, // 300
+	int... x
+) { return 1; }
+
diff --git a/test/test_suite7/functions/type_argument_live_1461.c3t b/test/test_suite7/functions/type_argument_live_1461.c3t
new file mode 100644
index 000000000..1ac3ca69c
--- /dev/null
+++ b/test/test_suite7/functions/type_argument_live_1461.c3t
@@ -0,0 +1,9 @@
+module test;
+macro @test(uint value, #type) {
+
+}
+
+fn void main()
+{
+	@test(1, uint);
+}
diff --git a/test/test_suite7/functions/typeless_varargs.c3t b/test/test_suite7/functions/typeless_varargs.c3t
new file mode 100644
index 000000000..e97238ddc
--- /dev/null
+++ b/test/test_suite7/functions/typeless_varargs.c3t
@@ -0,0 +1,74 @@
+// #target: macos-x64
+
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void retest(foo...)
+{
+    test(...foo);
+}
+fn void test(foo...)
+{
+    printf("Foo1 was: %d\n", *((int*)foo[0]));
+}
+fn int main()
+{
+    int i = 1;
+    test(1);
+    retest(1);
+    return 1;
+}
+
+/* #expect: test.ll
+
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @test.retest(ptr %0, i64 %1) #0 {
+entry:
+  %foo = alloca %"any[]", align 8
+  store ptr %0, ptr %foo, align 8
+  %ptradd = getelementptr inbounds i8, ptr %foo, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %lo = load ptr, ptr %foo, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %foo, i64 8
+  %hi = load i64, ptr %ptradd1, align 8
+  call void @test.test(ptr %lo, i64 %hi)
+  ret void
+}
+
+; Function Attrs:
+define void @test.test(ptr %0, i64 %1) #0 {
+entry:
+  %foo = alloca %"any[]", align 8
+  store ptr %0, ptr %foo, align 8
+  %ptradd = getelementptr inbounds i8, ptr %foo, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %2 = load ptr, ptr %foo, align 8
+  %3 = load ptr, ptr %2, align 8
+  %4 = load i32, ptr %3, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %4)
+  ret void
+}
+
+; Function Attrs:
+define i32 @main() #0 {
+entry:
+  %i = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %varargslots1 = alloca [1 x %any], align 16
+  %taddr2 = alloca i32, align 4
+  store i32 1, ptr %i, align 4
+  store i32 1, ptr %taddr, align 4
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  call void @test.test(ptr %varargslots, i64 1)
+  store i32 1, ptr %taddr2, align 4
+  %2 = insertvalue %any undef, ptr %taddr2, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %3, ptr %varargslots1, align 16
+  call void @test.retest(ptr %varargslots1, i64 1)
+  ret i32 1
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/unsplat_named.c3 b/test/test_suite7/functions/unsplat_named.c3
new file mode 100644
index 000000000..6e5ed0503
--- /dev/null
+++ b/test/test_suite7/functions/unsplat_named.c3
@@ -0,0 +1,8 @@
+fn void test(int... abc, int a)
+{  }
+
+fn void main()
+{
+	int[] b = { 1, 2 };
+	test(...b, a: 123);
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/vaarg_raw.c3 b/test/test_suite7/functions/vaarg_raw.c3
new file mode 100644
index 000000000..937f05b25
--- /dev/null
+++ b/test/test_suite7/functions/vaarg_raw.c3
@@ -0,0 +1,8 @@
+import std;
+
+fn void main()
+{}
+
+fn void bohoo(...) // #error: C-style variadic arguments
+{
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/vararg_and_named_tests.c3 b/test/test_suite7/functions/vararg_and_named_tests.c3
new file mode 100644
index 000000000..eb9b038e2
--- /dev/null
+++ b/test/test_suite7/functions/vararg_and_named_tests.c3
@@ -0,0 +1,53 @@
+// #target: macos-x64
+module foo;
+
+extern fn void printf(char* format, ...);
+
+fn void test(int x, int... y, int z = 2)
+{
+}
+
+fn void test2(int x, int... y, int z)
+{
+}
+
+fn void a()
+{
+	test(z: 32, 3); // #error: Named arguments must be placed after positional arguments
+}
+
+fn void b()
+{
+	test(1, x: 3); // #error: The parameter 'x' was already set.
+}
+
+fn void c()
+{
+	test(1);
+}
+
+fn void d()
+{
+	test2(1, z: 3);
+	test2(1, 2, 3); // #error: Expected 'z: ...' after this argument
+}
+
+
+fn void single(int x) {}
+
+fn void e()
+{
+	single(); // #error: This call expected a parameter of type 'int'
+}
+
+fn void multiple(int x, int y) {}
+
+fn void f()
+{
+	multiple(1); // #error: Expected 1 more argument after this one
+}
+
+fn void g()
+{
+	multiple(); // #error: 'multiple' expects
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/vararg_argument_fails.c3 b/test/test_suite7/functions/vararg_argument_fails.c3
new file mode 100644
index 000000000..1a7916389
--- /dev/null
+++ b/test/test_suite7/functions/vararg_argument_fails.c3
@@ -0,0 +1,5 @@
+fn void foo5(..., ...) {} // #error: Only a single variadic parameter is allowed
+
+fn void foo6(int ..., int ...) {} // #error: Only a single variadic parameter is allowed
+
+fn void foo7(int... x, int ... y) {} // #error: Only a single variadic parameter is allowed
\ No newline at end of file
diff --git a/test/test_suite7/functions/varargs.c3t b/test/test_suite7/functions/varargs.c3t
new file mode 100644
index 000000000..2571a65d5
--- /dev/null
+++ b/test/test_suite7/functions/varargs.c3t
@@ -0,0 +1,42 @@
+module varargs;
+
+extern fn void printf(char* c, ...);
+
+fn void test()
+{
+  printf("%d\n", true);
+  printf("%d\n", 123);
+  printf("%f\n", 12.3);
+  ichar x1 = -123;
+  bool b = false;
+  float z1 = 12.3;
+  printf("%d\n", b);
+  printf("%d\n", x1);
+  printf("%f\n", z1);
+}
+
+/* #expect: varargs.ll
+
+define void @varargs.test() #0 {
+entry:
+  %x1 = alloca i8, align 1
+  %b = alloca i8, align 1
+  %z1 = alloca float, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 1)
+  call void (ptr, ...) @printf(ptr @.str.1, i32 123)
+  call void (ptr, ...) @printf(ptr @.str.2, double 1.230000e+01)
+  store i8 -123, ptr %x1, align 1
+  store i8 0, ptr %b, align 1
+  store float 0x40289999A0000000, ptr %z1, align 4
+  %0 = load i8, ptr %b, align 1
+  %1 = trunc i8 %0 to i1
+  %zext = zext i1 %1 to i32
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %zext)
+  %2 = load i8, ptr %x1, align 1
+  %sext = sext i8 %2 to i32
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %sext)
+  %3 = load float, ptr %z1, align 4
+  %fpfpext = fpext float %3 to double
+  call void (ptr, ...) @printf(ptr @.str.5, double %fpfpext)
+  ret void
+}
diff --git a/test/test_suite7/functions/varargs_followed_by_named.c3t b/test/test_suite7/functions/varargs_followed_by_named.c3t
new file mode 100644
index 000000000..73c89e108
--- /dev/null
+++ b/test/test_suite7/functions/varargs_followed_by_named.c3t
@@ -0,0 +1,94 @@
+// #target: macos-x64
+module foo;
+
+extern fn void printf(char* format, ...);
+
+fn void test(int x, int... y, int z = 2)
+{
+	printf("Got %d %d %d %d\n", x, (int)y.len, z, y[0]);
+}
+fn void test2(int x, y..., int z = 2)
+{
+	printf("Got %d %d %d\n", x, (int)y.len, z);
+}
+
+fn void main()
+{
+	test(3, 4, 5, z: 123);
+	test2(3, 4, 5, z: 123);
+	test(3, 4, 5);
+	test2(3, 4, 5);
+}
+
+/* #expect: foo.ll
+
+define void @foo.test(i32 %0, ptr %1, i64 %2, i32 %3) #0 {
+entry:
+  %y = alloca %"int[]", align 8
+  store ptr %1, ptr %y, align 8
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 8
+  store i64 %2, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 8
+  %4 = load i64, ptr %ptradd1, align 8
+  %trunc = trunc i64 %4 to i32
+  %5 = load ptr, ptr %y, align 8
+  %6 = load i32, ptr %5, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %0, i32 %trunc, i32 %3, i32 %6)
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test2(i32 %0, ptr %1, i64 %2, i32 %3) #0 {
+entry:
+  %y = alloca %"any[]", align 8
+  store ptr %1, ptr %y, align 8
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 8
+  store i64 %2, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 8
+  %4 = load i64, ptr %ptradd1, align 8
+  %trunc = trunc i64 %4 to i32
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %0, i32 %trunc, i32 %3)
+  ret void
+}
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %varargslots = alloca [2 x i32], align 4
+  %varargslots1 = alloca [2 x %any], align 16
+  %taddr = alloca i32, align 4
+  %taddr2 = alloca i32, align 4
+  %varargslots4 = alloca [2 x i32], align 4
+  %varargslots6 = alloca [2 x %any], align 16
+  %taddr7 = alloca i32, align 4
+  %taddr8 = alloca i32, align 4
+  store i32 4, ptr %varargslots, align 4
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 4
+  store i32 5, ptr %ptradd, align 4
+  call void @foo.test(i32 3, ptr %varargslots, i64 2, i32 123)
+  store i32 4, ptr %taddr, align 4
+  %0 = insertvalue %any undef, ptr %taddr, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %varargslots1, align 16
+  store i32 5, ptr %taddr2, align 4
+  %2 = insertvalue %any undef, ptr %taddr2, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd3 = getelementptr inbounds i8, ptr %varargslots1, i64 16
+  store %any %3, ptr %ptradd3, align 16
+  call void @foo.test2(i32 3, ptr %varargslots1, i64 2, i32 123)
+  store i32 4, ptr %varargslots4, align 4
+  %ptradd5 = getelementptr inbounds i8, ptr %varargslots4, i64 4
+  store i32 5, ptr %ptradd5, align 4
+  call void @foo.test(i32 3, ptr %varargslots4, i64 2, i32 2)
+  store i32 4, ptr %taddr7, align 4
+  %4 = insertvalue %any undef, ptr %taddr7, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %5, ptr %varargslots6, align 16
+  store i32 5, ptr %taddr8, align 4
+  %6 = insertvalue %any undef, ptr %taddr8, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd9 = getelementptr inbounds i8, ptr %varargslots6, i64 16
+  store %any %7, ptr %ptradd9, align 16
+  call void @foo.test2(i32 3, ptr %varargslots6, i64 2, i32 2)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/functions/void_params.c3 b/test/test_suite7/functions/void_params.c3
new file mode 100644
index 000000000..e4d0053bb
--- /dev/null
+++ b/test/test_suite7/functions/void_params.c3
@@ -0,0 +1,2 @@
+fn void test(int, void) {} // #error: Parameters may not be of type 'void'.
+extern fn void test3(void); // #error: C-style 'foo(void)' style argument declarations are not valid
\ No newline at end of file
diff --git a/test/test_suite7/generic/different_generic_def.c3 b/test/test_suite7/generic/different_generic_def.c3
new file mode 100644
index 000000000..d22e10dd4
--- /dev/null
+++ b/test/test_suite7/generic/different_generic_def.c3
@@ -0,0 +1,21 @@
+module test;
+import test2;
+fn int main()
+{
+  Foo1(<int>) a;
+  return 0;
+}
+
+module test2(<Type>);
+
+struct Foo
+{
+   Type f;
+}
+
+module test2(<Type, FOO>); // #error: declarations of the generic
+
+struct Foo1
+{
+  Type a;
+}
diff --git a/test/test_suite7/generic/enum_in_other_module.c3t b/test/test_suite7/generic/enum_in_other_module.c3t
new file mode 100644
index 000000000..d80a9d76d
--- /dev/null
+++ b/test/test_suite7/generic/enum_in_other_module.c3t
@@ -0,0 +1,104 @@
+// #target: macos-x64
+module test;
+import foo;
+
+fn int main(String[] args) {
+  foo::bar(ONE);
+  return 0;
+}
+
+enum Enum : int {ONE, TWO, THREE}
+
+module foo;
+import std;
+import test;
+
+fn void bar(Enum e) {
+  io::printn(e.nameof);
+}
+
+/* #expect: foo.ll
+
+@.enum.ONE = internal constant [4 x i8] c"ONE\00", align 1
+@.enum.TWO = internal constant [4 x i8] c"TWO\00", align 1
+@.enum.THREE = internal constant [6 x i8] c"THREE\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Enum" = linkonce global { i8, i64, ptr, i64, i64, i64, [3 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.int" to i64), i64 3, [3 x %"char[]"] [%"char[]" { ptr @.enum.ONE, i64 3 }, %"char[]" { ptr @.enum.TWO, i64 3 }, %"char[]" { ptr @.enum.THREE, i64 5 }] }, align 8
+
+; Function Attrs: nounwind uwtable
+define void @foo.bar(i32 %0) #0 {
+entry:
+  %x = alloca %"char[]", align 8
+  %x1 = alloca %"char[]", align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca %"char[]", align 8
+  %retparam = alloca i64, align 8
+  %error_var4 = alloca i64, align 8
+  %error_var10 = alloca i64, align 8
+  %zext = zext i32 %0 to i64
+  %ptroffset_any = getelementptr [16 x i8], ptr getelementptr inbounds
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x, ptr align 8 %ptroffset_any, i32 16, i1 false)
+  %1 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x1, ptr align 8 %x, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x2, ptr align 8 %x1, i32 16, i1 false)
+  %lo = load ptr, ptr %x2, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x2, i64 8
+  %hi = load i64, ptr %ptradd, align 8
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr %lo, i64 %hi)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err5 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %6, label %after_check7, label %assign_optional6
+
+assign_optional6:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var4, align 8
+  br label %guard_block8
+
+after_check7:                                     ; preds = %noerr_block
+  br label %noerr_block9
+
+guard_block8:                                     ; preds = %assign_optional6
+  br label %voiderr
+
+noerr_block9:                                     ; preds = %after_check7
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err11 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %8, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %noerr_block9
+  store i64 %7, ptr %error_var10, align 8
+  br label %guard_block14
+
+after_check13:                                    ; preds = %noerr_block9
+  br label %noerr_block15
+
+guard_block14:                                    ; preds = %assign_optional12
+  br label %voiderr
+
+noerr_block15:                                    ; preds = %after_check13
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block15, %guard_block14, %guard_block8, %guard_block
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/generic/enum_set_test.c3t b/test/test_suite7/generic/enum_set_test.c3t
new file mode 100644
index 000000000..6ce014982
--- /dev/null
+++ b/test/test_suite7/generic/enum_set_test.c3t
@@ -0,0 +1,88 @@
+// #target: macos-x64
+module test;
+import std::io;
+import std::collections::enumset;
+
+def AbcEnumSet = EnumSet(<Abc>);
+
+enum Abc
+{
+	HELLO,
+	WORLD
+}
+fn void main()
+{
+	AbcEnumSet set;
+	io::printf("Has WORLD: %s\n", set.has(Abc.WORLD));
+	set.add(Abc.HELLO);
+	io::printf("Has WORLD: %s\n", set.has(Abc.WORLD));
+	set.add(Abc.WORLD);
+	io::printf("Has WORLD: %s\n", set.has(Abc.WORLD));
+	AbcEnumSet set2;
+	set2.add_all(set);
+	io::printf("Has WORLD: %s\n", set2.has(Abc.WORLD));
+	set.remove_all(set2);
+	io::printf("Has WORLD: %s\n", set.has(Abc.WORLD));
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %set = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i8, align 1
+  %retparam = alloca i64, align 8
+  %varargslots1 = alloca [1 x %any], align 16
+  %taddr2 = alloca i8, align 1
+  %retparam3 = alloca i64, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %taddr5 = alloca i8, align 1
+  %retparam6 = alloca i64, align 8
+  %set2 = alloca i32, align 4
+  %varargslots7 = alloca [1 x %any], align 16
+  %taddr8 = alloca i8, align 1
+  %retparam9 = alloca i64, align 8
+  %varargslots10 = alloca [1 x %any], align 16
+  %taddr11 = alloca i8, align 1
+  %retparam12 = alloca i64, align 8
+  store i32 0, ptr %set, align 4
+  %0 = call i8 @"std_collections_enumset$test.Abc$.EnumSet.has"(ptr %set, i32 1)
+  store i8 %0, ptr %taddr, align 1
+  %1 = insertvalue %any undef, ptr %taddr, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printf(ptr %retparam, ptr @.str, i64 14, ptr %varargslots, i64 1)
+  call void @"std_collections_enumset$test.Abc$.EnumSet.add"(ptr %set, i32 0)
+  %4 = call i8 @"std_collections_enumset$test.Abc$.EnumSet.has"(ptr %set, i32 1)
+  store i8 %4, ptr %taddr2, align 1
+  %5 = insertvalue %any undef, ptr %taddr2, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %6, ptr %varargslots1, align 16
+  %7 = call i64 @std.io.printf(ptr %retparam3, ptr @.str.1, i64 14, ptr %varargslots1, i64 1)
+  call void @"std_collections_enumset$test.Abc$.EnumSet.add"(ptr %set, i32 1)
+  %8 = call i8 @"std_collections_enumset$test.Abc$.EnumSet.has"(ptr %set, i32 1)
+  store i8 %8, ptr %taddr5, align 1
+  %9 = insertvalue %any undef, ptr %taddr5, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %10, ptr %varargslots4, align 16
+  %11 = call i64 @std.io.printf(ptr %retparam6, ptr @.str.2, i64 14, ptr %varargslots4, i64 1)
+  store i32 0, ptr %set2, align 4
+  %12 = load i32, ptr %set, align 4
+  call void @"std_collections_enumset$test.Abc$.EnumSet.add_all"(ptr %set2, i32 %12)
+  %13 = call i8 @"std_collections_enumset$test.Abc$.EnumSet.has"(ptr %set2, i32 1)
+  store i8 %13, ptr %taddr8, align 1
+  %14 = insertvalue %any undef, ptr %taddr8, 0
+  %15 = insertvalue %any %14, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %15, ptr %varargslots7, align 16
+  %16 = call i64 @std.io.printf(ptr %retparam9, ptr @.str.3, i64 14, ptr %varargslots7, i64 1)
+  %17 = load i32, ptr %set2, align 4
+  call void @"std_collections_enumset$test.Abc$.EnumSet.remove_all"(ptr %set, i32 %17)
+  %18 = call i8 @"std_collections_enumset$test.Abc$.EnumSet.has"(ptr %set, i32 1)
+  store i8 %18, ptr %taddr11, align 1
+  %19 = insertvalue %any undef, ptr %taddr11, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %20, ptr %varargslots10, align 16
+  %21 = call i64 @std.io.printf(ptr %retparam12, ptr @.str.4, i64 14, ptr %varargslots10, i64 1)
+  ret void
+}
diff --git a/test/test_suite7/generic/generic_builtin.c3t b/test/test_suite7/generic/generic_builtin.c3t
new file mode 100644
index 000000000..5643b3c2d
--- /dev/null
+++ b/test/test_suite7/generic/generic_builtin.c3t
@@ -0,0 +1,16 @@
+module add(<Type>);
+fn Type add(Type a, Type b) @builtin =>
+  a + b;
+
+module iadd;
+fn int iadd(int a, int b) @builtin =>
+  a + b;
+
+module main;
+import std::io, add, iadd;
+
+fn void main()
+{
+  io::printfn("%s", iadd(1,2)); // Fine
+  io::printfn("%s", add(<int>)(1,2)); // Error
+}
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_copy.c3t b/test/test_suite7/generic/generic_copy.c3t
new file mode 100644
index 000000000..ade578db9
--- /dev/null
+++ b/test/test_suite7/generic/generic_copy.c3t
@@ -0,0 +1,12 @@
+module foo(<Type>);
+
+fn void abc()
+{
+    int i;
+    defer { i++; }
+}
+
+module tester;
+import foo;
+
+def abc_my = foo::abc(<int>);
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_cyclic.c3 b/test/test_suite7/generic/generic_cyclic.c3
new file mode 100644
index 000000000..b94285bd7
--- /dev/null
+++ b/test/test_suite7/generic/generic_cyclic.c3
@@ -0,0 +1,17 @@
+// #target: macos-x64
+module test;
+import bar;
+
+def BazTest = Baz(<Test>); // #error: Recursive definition of 'BazTest'
+
+struct Test
+{
+	BazTest t;
+}
+
+module bar(<Test>);
+
+struct Baz
+{
+	Test a;
+}
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_idents.c3t b/test/test_suite7/generic/generic_idents.c3t
new file mode 100644
index 000000000..d8293e9b6
--- /dev/null
+++ b/test/test_suite7/generic/generic_idents.c3t
@@ -0,0 +1,71 @@
+// #target: macos-aarch64
+module gen(<Type>);
+
+fn Type mult(Type x)
+{
+    return x * x;
+}
+
+fn Type addMult(Type x, Type a, Type b)
+{
+    return x * a + b;
+}
+
+module test;
+import gen;
+
+def intMult = gen::mult(<int>);
+def doubleAddMult = gen::addMult(<double>);
+
+fn int getIt(int i)
+{
+    return intMult(i) + 1;
+}
+
+fn double getIt2(double i)
+{
+    return doubleAddMult(i, 2, 3);
+}
+
+/* #expect: gen.int.ll
+
+define weak i32 @"gen$int$.mult"(i32 %0) #0 {
+entry:
+  %mul = mul i32 %0, %0
+  ret i32 %mul
+}
+
+define weak i32 @"gen$int$.addMult"(i32 %0, i32 %1, i32 %2) #0 {
+entry:
+  %mul = mul i32 %0, %1
+  %add = add i32 %mul, %2
+  ret i32 %add
+}
+
+// #expect: test.ll
+
+define i32 @test.getIt(i32 %0) #0 {
+entry:
+  %1 = call i32 @"gen$int$.mult"(i32 %0)
+  %add = add i32 %1, 1
+  ret i32 %add
+}
+
+define double @test.getIt2(double %0) #0 {
+entry:
+  %1 = call double @"gen$double$.addMult"(double %0, double 2.000000e+00, double 3.000000e+00)
+  ret double %1
+}
+
+declare extern_weak i32 @"gen$int$.mult"(i32)
+
+declare extern_weak double @"gen$double$.addMult"(double, double, double)
+
+// #expect: gen.double.ll
+
+
+define weak double @"gen$double$.addMult"(double %0, double %1, double %2)
+entry:
+  %fmul = fmul double %0, %1
+  %fadd = fadd double %fmul, %2
+  ret double %fadd
diff --git a/test/test_suite7/generic/generic_interface.c3t b/test/test_suite7/generic/generic_interface.c3t
new file mode 100644
index 000000000..6a9b2ef6f
--- /dev/null
+++ b/test/test_suite7/generic/generic_interface.c3t
@@ -0,0 +1,31 @@
+// #target: macos-aarch64
+module base;
+
+module test(<MyType>);
+import base;
+interface Zzz
+{
+    fn void zzz(MyType t);
+}
+struct TestStruct (Zzz)
+{
+	String data;
+}
+fn void TestStruct.zzz(&self, MyType t) @dynamic { }
+
+module app;
+import test;
+fn int main()
+{
+	TestStruct(<int>) ts;
+	return 0;
+}
+
+/* #expect: app.ll
+
+define i32 @main() #0 {
+entry:
+  %ts = alloca %TestStruct, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %ts, i8 0, i64 16, i1 false)
+  ret i32 0
+}
diff --git a/test/test_suite7/generic/generic_lambda_complex.c3t b/test/test_suite7/generic/generic_lambda_complex.c3t
new file mode 100644
index 000000000..e10d53993
--- /dev/null
+++ b/test/test_suite7/generic/generic_lambda_complex.c3t
@@ -0,0 +1,249 @@
+// #target: macos-x64
+// #deprecation: no
+
+<* @require Type.kindof == STRUCT *>
+module abc(<Type>);
+import std::io;
+import std::collections::list;
+
+def TextTagList = List(<TextTag>);
+
+fault TextError
+{
+	UNTERMINATED_TAG,
+	EMPTY_TAG,
+	MISSING_TAG,
+	UNSUPPORTED_TAG,
+}
+
+enum TextTagKind: char
+{
+	STRING,
+	TEMPLATE,
+}
+
+struct TextTemplate
+{
+	Allocator allocator;
+	String template;
+	TextTag[] tags;
+	Type data;
+}
+
+struct TextTag
+{
+	usz start;
+	usz end;
+	TextTagKind kind;
+	union {
+		String* data;
+		TextTemplate* template;
+	}
+}
+
+<*
+ @require self.tags.len == 0 "template already initialized"
+ @require tag_start != tag_end
+ *>
+fn void! TextTemplate.init(&self, String template, String tag_start = "{{", String tag_end = "}}", Allocator using = allocator::heap())
+{
+
+	TextTagList tags;
+	String tmpl = template;
+	uptr data = (uptr)&self.data;
+	while (true)
+	{
+		usz! start = tmpl.index_of(tag_start);
+		if (catch start) break;
+		tmpl = tmpl[start + tag_start.len..];
+
+		usz! end = tmpl.index_of(tag_end);
+		if (catch end) return TextError.UNTERMINATED_TAG?;
+		String name = tmpl[:end].trim();
+		if (name == "") return TextError.EMPTY_TAG?;
+		// Check that the tag exists in the data struct.
+		TextTag tag = {|
+			$foreach ($m : Type.membersof)
+				if (name == $m.nameof)
+				{
+					$switch ($m.typeid)
+						$case String.typeid:
+							return (TextTag){
+								.kind = STRING,
+								.data = (String*)(data + $m.offsetof),
+							};
+						$default:
+							$if $defined($m.get(self.data).as_stream):
+								return (TextTag){
+									.kind = TEMPLATE,
+									.template = self.data.$eval($m.nameof).as_stream(),
+								};
+							$endif
+					$endswitch
+					//return TextError.UNSUPPORTED_TAG?;
+				}
+			$endforeach
+			return TextError.MISSING_TAG?;
+		|}!;
+		tmpl = tmpl[end + tag_end.len..];
+
+		tag.start = start;
+		tag.end = start + tag_start.len + end + tag_end.len;
+		tags.push(tag);
+	}
+
+	*self = { .allocator = using, .template = template, .tags = tags.array_view() };
+}
+
+fn void! TextTemplate.free(&self)
+{
+	allocator::free(self.allocator, self.tags);
+	*self = {};
+}
+
+fn usz! TextTemplate.write_to(&self, OutStream writer)
+{
+	usz n;
+	usz pos;
+	foreach (tag : self.tags)
+	{
+			n += writer.write(self.template[pos:tag.start])!;
+			pos += tag.end;
+			n += tag.write(writer)!;
+	}
+	n += writer.write(self.template[pos..])!;
+	return n;
+}
+
+fn usz! TextTag.write(&self, OutStream writer)
+{
+	switch (self.kind)
+	{
+		case STRING:
+			return writer.write(*self.data);
+		case TEMPLATE:
+			return self.template.write_to(writer);
+	}
+}
+
+module text_test;
+import abc;
+import std::io;
+
+def Tmpl = TextTemplate(<Data>);
+
+struct Data
+{
+	String user;
+	String world;
+	bool ok;
+}
+
+
+
+def FooTmpl = TextTemplate(<Foo>);
+def BarTmpl = TextTemplate(<Bar>);
+
+struct Foo
+{
+	String foo;
+	BarTmpl* bar;
+}
+
+struct Bar
+{
+	String bar;
+}
+
+fn void main()
+{
+
+	String foo_tmpl = "<<{{foo}} | {{bar}}>>";
+	FooTmpl ft;
+	ft.init(foo_tmpl, using: allocator::temp())!!;
+	defer ft.free()!!;
+
+
+}
+
+/* #expect: text_test.ll
+
+define void @text_test.main() #0 {
+entry:
+  %foo_tmpl = alloca %"char[]", align 8
+  %ft = alloca %TextTemplate, align 8
+  %error_var = alloca i64, align 8
+  %indirectarg = alloca %"char[]", align 8
+  %indirectarg1 = alloca %any, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %indirectarg2 = alloca %"any[]", align 8
+  %error_var3 = alloca i64, align 8
+  %varargslots8 = alloca [1 x %any], align 16
+  %indirectarg10 = alloca %"any[]", align 8
+  store %"char[]" { ptr @.str, i64 21 }, ptr %foo_tmpl, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %ft, i8 0, i64 72, i1 false)
+  %0 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  %i2nb = icmp eq ptr %0, null
+  br i1 %i2nb, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  call void @std.core.mem.allocator.init_default_temp_allocators()
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  %1 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  %2 = insertvalue %any undef, ptr %1, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.std.core.mem.allocator.TempAllocator" to i64), 1
+  %lo = load ptr, ptr %foo_tmpl, align 8
+  %ptradd = getelementptr inbounds i8, ptr %foo_tmpl, i64 8
+  %hi = load i64, ptr %ptradd, align 8
+  store %"char[]" { ptr @.str.2, i64 2 }, ptr %indirectarg, align 8
+  store %any %3, ptr %indirectarg1, align 8
+  %4 = call i64 @"abc$text_test.Foo$.TextTemplate.init"(ptr %ft, ptr %lo, i64 %hi, ptr @.str.1, i64 2, ptr byval(%"char[]") align 8 %indirectarg, ptr byval(%any) align 8 %indirectarg1)
+  %not_err = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %5, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %if.exit
+  store i64 %4, ptr %error_var, align 8
+  br label %panic_block
+
+after_check:                                      ; preds = %if.exit
+  br label %noerr_block
+
+panic_block:                                      ; preds = %assign_optional
+  %6 = insertvalue %any undef, ptr %error_var, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %7, ptr %varargslots, align 16
+  %8 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %8, i64 1, 1
+  store %"any[]" %"$$temp", ptr %indirectarg2, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 25, ptr @.func, i64 4, i32 161, ptr byval(%"any[]") align 8 %indirectarg2)
+  unreachable
+
+noerr_block:                                      ; preds = %after_check
+  %9 = call i64 @"abc$text_test.Foo$.TextTemplate.free"(ptr %ft)
+  %not_err4 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err4, i1 true)
+  br i1 %10, label %after_check6, label %assign_optional5
+
+assign_optional5:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var3, align 8
+  br label %panic_block7
+
+after_check6:                                     ; preds = %noerr_block
+  br label %noerr_block11
+
+panic_block7:                                     ; preds = %assign_optional5
+  %11 = insertvalue %any undef, ptr %error_var3, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %12, ptr %varargslots8, align 16
+  %13 = insertvalue %"any[]" undef, ptr %varargslots8, 0
+  %"$$temp9" = insertvalue %"any[]" %13, i64 1, 1
+  store %"any[]" %"$$temp9", ptr %indirectarg10, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 25, ptr @.func, i64 4, i32 162, ptr byval(%"any[]") align 8 %indirectarg10)
+  unreachable
+
+noerr_block11:                                    ; preds = %after_check6
+  ret void
+}
diff --git a/test/test_suite7/generic/generic_local.c3 b/test/test_suite7/generic/generic_local.c3
new file mode 100644
index 000000000..6bd601425
--- /dev/null
+++ b/test/test_suite7/generic/generic_local.c3
@@ -0,0 +1,23 @@
+module testing;
+import std::io;
+import foo;
+
+def Foo = foo::Foo;
+
+fn void main()
+{
+    Foo f;
+}
+
+module foo;
+import foo::private;
+
+// Bug #856
+distinct Foo = inline PrivateFoo(<int>); // #error: could not be found
+
+module foo::private(<Type>) @local;
+
+struct PrivateFoo
+{
+	Type x;
+}
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_num.c3t b/test/test_suite7/generic/generic_num.c3t
new file mode 100644
index 000000000..3833d9068
--- /dev/null
+++ b/test/test_suite7/generic/generic_num.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+module hello(<Type, FOO>);
+
+fn Type x(Type t)
+{
+	return t * t + FOO;
+}
+
+module test;
+import hello;
+def xint = hello::x(<int, -123>);
+
+import std::io;
+
+fn void main()
+{
+	io::printfn("%d", xint(4));
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  %0 = call i32 @"hello$int$_123$.x"(i32 4)
+  store i32 %0, ptr %taddr, align 4
+  %1 = insertvalue %any undef, ptr %taddr, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  ret void
+}
+
diff --git a/test/test_suite7/generic/generic_over_fn.c3t b/test/test_suite7/generic/generic_over_fn.c3t
new file mode 100644
index 000000000..156627ce2
--- /dev/null
+++ b/test/test_suite7/generic/generic_over_fn.c3t
@@ -0,0 +1,207 @@
+// #target: macos-x64
+module test_generic(<Type, Func>);
+
+fn void sort(Type list, isz, isz, Func cmp)
+{}
+
+module sort_test;
+import std::sort;
+import test_generic;
+
+macro quicksort(list, cmp = null)
+{
+    var $Type = $typeof(list);
+    var $CmpType = $typeof(cmp);
+    usz len = sort::len_from_list(list);
+    test_generic::sort(<$Type, $CmpType>)(list, 0, (isz)len - 1, cmp);
+}
+
+fn void quicksort_with_value() @nostrip
+{
+    int[][] tcases = {
+        {},
+        {10, 3},
+        {3, 2, 1},
+        {1, 2, 3},
+        {2, 1, 3},
+    };
+
+    foreach (tc : tcases)
+    {
+        quicksort(tc, &cmp_int_value);
+    }
+}
+
+fn void quicksort_with_value2() @nostrip
+{
+    int[][] tcases = {
+        {},
+        {10, 3},
+        {3, 2, 1},
+        {1, 2, 3},
+        {2, 1, 3},
+    };
+
+    foreach (tc : tcases)
+    {
+        quicksort(tc, &cmp_int_value2);
+    }
+}
+
+fn int cmp_int_value(int x, int y) {
+    return x - y;
+}
+
+fn int cmp_int_value2(int x, int y) {
+    return x - y;
+}
+
+/* #expect: sort_test.ll
+
+define void @sort_test.quicksort_with_value() #0 {
+entry:
+  %tcases = alloca %"int[][]", align 8
+  %literal = alloca [5 x %"int[]"], align 16
+  %literal1 = alloca [2 x i32], align 4
+  %literal3 = alloca [3 x i32], align 4
+  %literal5 = alloca [3 x i32], align 4
+  %literal7 = alloca [3 x i32], align 4
+  %.anon = alloca i64, align 8
+  %tc = alloca %"int[]", align 8
+  %list = alloca %"int[]", align 8
+  %len = alloca i64, align 8
+  %list9 = alloca %"int[]", align 8
+  store %"int[]" zeroinitializer, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal1, ptr align 4 @.__const, i32 8, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal1, 0
+  %1 = insertvalue %"int[]" %0, i64 2, 1
+  store %"int[]" %1, ptr %ptradd, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i64 32
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal3, ptr align 4 @.__const.1, i32 12, i1 false)
+  %2 = insertvalue %"int[]" undef, ptr %literal3, 0
+  %3 = insertvalue %"int[]" %2, i64 3, 1
+  store %"int[]" %3, ptr %ptradd2, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %literal, i64 48
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal5, ptr align 4 @.__const.2, i32 12, i1 false)
+  %4 = insertvalue %"int[]" undef, ptr %literal5, 0
+  %5 = insertvalue %"int[]" %4, i64 3, 1
+  store %"int[]" %5, ptr %ptradd4, align 8
+  %ptradd6 = getelementptr inbounds i8, ptr %literal, i64 64
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal7, ptr align 4 @.__const.3, i32 12, i1 false)
+  %6 = insertvalue %"int[]" undef, ptr %literal7, 0
+  %7 = insertvalue %"int[]" %6, i64 3, 1
+  store %"int[]" %7, ptr %ptradd6, align 8
+  %8 = insertvalue %"int[][]" undef, ptr %literal, 0
+  %9 = insertvalue %"int[][]" %8, i64 5, 1
+  store %"int[][]" %9, ptr %tcases, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %tcases, i64 8
+  %10 = load i64, ptr %ptradd8, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %11 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %11, %10
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %12 = load ptr, ptr %tcases, align 8
+  %13 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [16 x i8], ptr %12, i64 %13
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tc, ptr align 8 %ptroffset, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %list, ptr align 8 %tc, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %list9, ptr align 8 %list, i32 16, i1 false)
+  %ptradd10 = getelementptr inbounds i8, ptr %list9, i64 8
+  %14 = load i64, ptr %ptradd10, align 8
+  store i64 %14, ptr %len, align 8
+  %15 = load i64, ptr %len, align 8
+  %sub = sub i64 %15, 1
+  %lo = load ptr, ptr %list, align 8
+  %ptradd11 = getelementptr inbounds i8, ptr %list, i64 8
+  %hi = load i64, ptr %ptradd11, align 8
+  call void @"test_generic$sa$int$fn$int$int$$int$$.sort"(ptr %lo, i64 %hi, i64 0, i64 %sub, ptr @sort_test.cmp_int_value)
+  %16 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %16, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
+
+; Function Attrs:
+define void @sort_test.quicksort_with_value2() #0 {
+entry:
+  %tcases = alloca %"int[][]", align 8
+  %literal = alloca [5 x %"int[]"], align 16
+  %literal1 = alloca [2 x i32], align 4
+  %literal3 = alloca [3 x i32], align 4
+  %literal5 = alloca [3 x i32], align 4
+  %literal7 = alloca [3 x i32], align 4
+  %.anon = alloca i64, align 8
+  %tc = alloca %"int[]", align 8
+  %list = alloca %"int[]", align 8
+  %len = alloca i64, align 8
+  %list9 = alloca %"int[]", align 8
+  store %"int[]" zeroinitializer, ptr %literal, align 8
+  %ptradd = getelementptr inbounds i8, ptr %literal, i64 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal1, ptr align 4 @.__const.4, i32 8, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal1, 0
+  %1 = insertvalue %"int[]" %0, i64 2, 1
+  store %"int[]" %1, ptr %ptradd, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i64 32
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal3, ptr align 4 @.__const.5, i32 12, i1 false)
+  %2 = insertvalue %"int[]" undef, ptr %literal3, 0
+  %3 = insertvalue %"int[]" %2, i64 3, 1
+  store %"int[]" %3, ptr %ptradd2, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %literal, i64 48
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal5, ptr align 4 @.__const.6, i32 12, i1 false)
+  %4 = insertvalue %"int[]" undef, ptr %literal5, 0
+  %5 = insertvalue %"int[]" %4, i64 3, 1
+  store %"int[]" %5, ptr %ptradd4, align 8
+  %ptradd6 = getelementptr inbounds i8, ptr %literal, i64 64
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal7, ptr align 4 @.__const.7, i32 12, i1 false)
+  %6 = insertvalue %"int[]" undef, ptr %literal7, 0
+  %7 = insertvalue %"int[]" %6, i64 3, 1
+  store %"int[]" %7, ptr %ptradd6, align 8
+  %8 = insertvalue %"int[][]" undef, ptr %literal, 0
+  %9 = insertvalue %"int[][]" %8, i64 5, 1
+  store %"int[][]" %9, ptr %tcases, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %tcases, i64 8
+  %10 = load i64, ptr %ptradd8, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %11 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %11, %10
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %12 = load ptr, ptr %tcases, align 8
+  %13 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [16 x i8], ptr %12, i64 %13
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tc, ptr align 8 %ptroffset, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %list, ptr align 8 %tc, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %list9, ptr align 8 %list, i32 16, i1 false)
+  %ptradd10 = getelementptr inbounds i8, ptr %list9, i64 8
+  %14 = load i64, ptr %ptradd10, align 8
+  store i64 %14, ptr %len, align 8
+  %15 = load i64, ptr %len, align 8
+  %sub = sub i64 %15, 1
+  %lo = load ptr, ptr %list, align 8
+  %ptradd11 = getelementptr inbounds i8, ptr %list, i64 8
+  %hi = load i64, ptr %ptradd11, align 8
+  call void @"test_generic$sa$int$fn$int$int$$int$$.sort"(ptr %lo, i64 %hi, i64 0, i64 %sub, ptr @sort_test.cmp_int_value2)
+  %16 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %16, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
+
+declare extern_weak void @"test_generic$sa$int$fn$int$int$$int$$.sort"(ptr, i64, i64, i64, ptr) #0
+
diff --git a/test/test_suite7/generic/generic_parsing.c3 b/test/test_suite7/generic/generic_parsing.c3
new file mode 100644
index 000000000..652eea977
--- /dev/null
+++ b/test/test_suite7/generic/generic_parsing.c3
@@ -0,0 +1,22 @@
+module test;
+import std;
+def ListStr = List(<String>);
+fn void test()
+{
+	List<String> a = List<...>.new_init(); // #error: An expression was expected
+}
+
+fn void test2()
+{
+	List(<String>) a = List<...>.new_init(); // #error: An expression was expected
+}
+
+fn void test3()
+{
+	List(<String>) a = List(<...>).new_init(); // #error: An expression was expected
+}
+
+fn void main()
+{
+    List<String> a = List<String>.new_init(); // #error: An expression was expected
+}
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_recursion.c3t b/test/test_suite7/generic/generic_recursion.c3t
new file mode 100644
index 000000000..697907dfb
--- /dev/null
+++ b/test/test_suite7/generic/generic_recursion.c3t
@@ -0,0 +1,21 @@
+// #target: macos-x64
+module test;
+import std::io;
+import std::collections::list;
+
+def TreeNodeList = List(<TreeNode>);
+
+struct TreeNode
+{
+	TreeNode* foo;
+	TreeNode* bar;
+	TreeNodeList list;
+}
+
+TreeNode abc;
+
+/* #expect: test.ll
+
+%TreeNode = type { ptr, ptr, %List }
+%List = type { i64, i64, %any, ptr }
+@test.abc = local_unnamed_addr global %TreeNode zeroinitializer, align 8
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_resolution_1402.c3t b/test/test_suite7/generic/generic_resolution_1402.c3t
new file mode 100644
index 000000000..3d6a7d668
--- /dev/null
+++ b/test/test_suite7/generic/generic_resolution_1402.c3t
@@ -0,0 +1,33 @@
+// #target: macos-x64
+module playground::bug(<Ty>);
+import std::io;
+
+struct Foo
+{
+    Ty x;
+}
+
+fn void Foo.print_it(&self)
+{
+    io::printf("Method %s\n", self.x);
+}
+
+module playground::bug(<Ty>);
+import std::io;
+
+macro void print_it(...)
+{
+    io::printn("Macro 456");
+}
+
+module playground;
+import playground::bug;
+
+def MyFoo = Foo(<int>);
+
+fn void main(String[] args)
+{
+    MyFoo foo = { 123 };
+    foo.print_it();
+    bug::print_it(<int>)();
+}
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_void.c3t b/test/test_suite7/generic/generic_void.c3t
new file mode 100644
index 000000000..5e63ce2d4
--- /dev/null
+++ b/test/test_suite7/generic/generic_void.c3t
@@ -0,0 +1,29 @@
+// #target: macos-x64
+module test(<Type>);
+
+def Callback = fn Type();
+
+module mymain;
+
+import std::io;
+import test;
+
+def VoidCb = test::Callback(<void>);
+
+fn int main()
+{
+	VoidCb a = null;
+	void *b = a;
+	return 0;
+}
+/* #expect: mymain.ll
+
+define i32 @main() #0 {
+entry:
+  %a = alloca ptr, align 8
+  %b = alloca ptr, align 8
+  store ptr null, ptr %a, align 8
+  %0 = load ptr, ptr %a, align 8
+  store ptr %0, ptr %b, align 8
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_with_comment.c3t b/test/test_suite7/generic/generic_with_comment.c3t
new file mode 100644
index 000000000..7db9f04f3
--- /dev/null
+++ b/test/test_suite7/generic/generic_with_comment.c3t
@@ -0,0 +1,13 @@
+module test;
+import generic;
+
+// Issue #1821
+fn void main() {
+  Generic(<int>) asdf;
+}
+
+<*
+ Hello
+*>
+module generic(<Param>);
+struct Generic { int a; }
\ No newline at end of file
diff --git a/test/test_suite7/generic/generic_with_enum.c3t b/test/test_suite7/generic/generic_with_enum.c3t
new file mode 100644
index 000000000..0fdb74f72
--- /dev/null
+++ b/test/test_suite7/generic/generic_with_enum.c3t
@@ -0,0 +1,36 @@
+// #target: macos-x64
+module test(<FOO>);
+
+const Z = FOO;
+
+struct Foo
+{
+    $typeof(FOO) z;
+}
+module tester;
+import test;
+
+enum Abc
+{
+    ONE,
+    TWO
+}
+
+fn void main()
+{
+    Foo(<Abc.ONE>) x;
+    Abc e = test::Z(<Abc.ONE>);
+}
+
+/* #expect: tester.ll
+
+%Foo = type { i32 }
+
+define void @tester.main() #0 {
+entry:
+  %x = alloca %Foo, align 4
+  %e = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  store i32 0, ptr %e, align 4
+  ret void
+}
diff --git a/test/test_suite7/generic/generic_without_param.c3 b/test/test_suite7/generic/generic_without_param.c3
new file mode 100644
index 000000000..a1915f162
--- /dev/null
+++ b/test/test_suite7/generic/generic_without_param.c3
@@ -0,0 +1,9 @@
+module test;
+import std;
+import abc;
+fn void main()
+{
+	abc::test(); // #error: (<...>)
+}
+module abc(<Type>);
+fn void test() {}
\ No newline at end of file
diff --git a/test/test_suite7/generic/implicit_import_of_generic.c3 b/test/test_suite7/generic/implicit_import_of_generic.c3
new file mode 100644
index 000000000..d87cc2342
--- /dev/null
+++ b/test/test_suite7/generic/implicit_import_of_generic.c3
@@ -0,0 +1,18 @@
+module test;
+import std::io;
+
+import abc;
+def Def2 = Def;
+def Test = abc::cde::Abc(<int>);
+
+module abc;
+
+fn void test() {}
+
+module abc::foo;
+
+struct Def { int x; }
+
+module abc::cde(<Type>);
+
+struct Abc { Type a, b; }
\ No newline at end of file
diff --git a/test/test_suite7/generic/incorrect_argument_type.c3 b/test/test_suite7/generic/incorrect_argument_type.c3
new file mode 100644
index 000000000..5df6bb456
--- /dev/null
+++ b/test/test_suite7/generic/incorrect_argument_type.c3
@@ -0,0 +1,11 @@
+module foo(<Type, SIZE>);
+
+struct Foo
+{
+  Type[SIZE] x;
+}
+module bar;
+import foo;
+
+def Bar = Foo(<int, int>); // #error: Expected a value, not a type
+def Baz = Foo(<5, 4>); // #error: Expected a type, not a value
diff --git a/test/test_suite7/generic/nested_typedef.c3t b/test/test_suite7/generic/nested_typedef.c3t
new file mode 100644
index 000000000..5e467affb
--- /dev/null
+++ b/test/test_suite7/generic/nested_typedef.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module broken(<Type>);
+distinct Bar = Type;
+def Bar2 = Type;
+struct Baz
+{
+	int a;
+}
+module test;
+import broken;
+
+struct Foo
+{
+	Bar(<int>) y;
+}
+
+struct Foo2
+{
+	Bar2(<int>) y;
+}
+fn int test() @if(Foo.sizeof > 2) => 1;
+fn int test2() @if(Foo2.sizeof > 2) => 1;
+fn void main() {}
+
+/* #expect: test.ll
+
+@"$ct.test.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Foo2" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+define i32 @test.test() #0 {
+define i32 @test.test2() #0 {
diff --git a/test/test_suite7/generic/used_without_param.c3 b/test/test_suite7/generic/used_without_param.c3
new file mode 100644
index 000000000..950c3b12f
--- /dev/null
+++ b/test/test_suite7/generic/used_without_param.c3
@@ -0,0 +1,8 @@
+module test;
+import std::collections::maybe;
+
+fn void main()
+{
+    Maybe(<float>) f = (Maybe) {.value=6.6, .has_value=true}; // #error: Did you mean the struct
+    Maybe(<int>)g = (Maybe) {.value=8, .has_value=true};
+}
diff --git a/test/test_suite7/generic/used_without_param2.c3 b/test/test_suite7/generic/used_without_param2.c3
new file mode 100644
index 000000000..3fc231a3d
--- /dev/null
+++ b/test/test_suite7/generic/used_without_param2.c3
@@ -0,0 +1,9 @@
+module test;
+import std::collections::maybe;
+
+fn void test()
+{
+    maybe::Maybe(<float>) f = (Maybe) {.value=6.6, .has_value=true}; // #error: Did you mean the struct
+    Maybe x; // #error: Did you mean the struct
+}
+
diff --git a/test/test_suite7/generic/used_without_param3.c3 b/test/test_suite7/generic/used_without_param3.c3
new file mode 100644
index 000000000..6ba0b4fd4
--- /dev/null
+++ b/test/test_suite7/generic/used_without_param3.c3
@@ -0,0 +1,7 @@
+module test;
+import std::collections::maybe;
+
+fn void test()
+{
+    maybe::Maybe(<float>) f = (Maybe) {.value=6.6, .has_value=true}; // #error: Did you mean the struct
+}
\ No newline at end of file
diff --git a/test/test_suite7/globals/ext_global_init.c3 b/test/test_suite7/globals/ext_global_init.c3
new file mode 100644
index 000000000..446fe0050
--- /dev/null
+++ b/test/test_suite7/globals/ext_global_init.c3
@@ -0,0 +1 @@
+extern int a = 1; // #error: Extern globals may not have initializers
\ No newline at end of file
diff --git a/test/test_suite7/globals/extern_const.c3t b/test/test_suite7/globals/extern_const.c3t
new file mode 100644
index 000000000..76e6530a2
--- /dev/null
+++ b/test/test_suite7/globals/extern_const.c3t
@@ -0,0 +1,17 @@
+// #target: macos-x64
+module test;
+
+extern const int FOO @extern("foo1");
+fn int main()
+{
+	return FOO;
+}
+
+module bar;
+const int FOO @export("foo1") = 123;
+
+
+
+/* #expect: bar.ll
+
+@foo1 = local_unnamed_addr constant i32 123, align 4
\ No newline at end of file
diff --git a/test/test_suite7/globals/external_global.c3t b/test/test_suite7/globals/external_global.c3t
new file mode 100644
index 000000000..9515d3a8b
--- /dev/null
+++ b/test/test_suite7/globals/external_global.c3t
@@ -0,0 +1,36 @@
+// #target: macos-x64
+module test;
+
+struct MinInfo
+{
+    long offset;
+    uint file_attr;
+}
+
+struct UzGlobs
+{
+    ichar answerbuf;
+    MinInfo[1] info;
+    MinInfo* pInfo;
+}
+
+extern UzGlobs g;
+
+fn int extract_or_test_files()
+{
+    g.pInfo = &g.info;
+    return 0;
+}
+
+/* #expect: test.ll
+
+
+%UzGlobs = type { i8, [1 x %MinInfo], ptr }
+%MinInfo = type { i64, i32 }
+
+@g = external global %UzGlobs, align 8
+
+entry:
+  store ptr getelementptr inbounds (i8, ptr @g, i64 8), ptr getelementptr inbounds (i8, ptr @g, i64 24), align 8
+  ret i32 0
+}
diff --git a/test/test_suite7/globals/global_align.c3t b/test/test_suite7/globals/global_align.c3t
new file mode 100644
index 000000000..d0763503c
--- /dev/null
+++ b/test/test_suite7/globals/global_align.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+
+module abc;
+
+int foo @align(32);
+
+fn void test()
+{
+	int x = foo;
+}
+
+/* #expect: abc.ll
+
+@abc.foo = local_unnamed_addr global i32 0, align 32
+
+define void @abc.test() #0 {
+entry:
+  %x = alloca i32, align 4
+  %0 = load i32, ptr @abc.foo, align 32
+  store i32 %0, ptr %x, align 4
+  ret void
+}
diff --git a/test/test_suite7/globals/global_extname.c3t b/test/test_suite7/globals/global_extname.c3t
new file mode 100644
index 000000000..51c98776a
--- /dev/null
+++ b/test/test_suite7/globals/global_extname.c3t
@@ -0,0 +1,8 @@
+// #target: macos-x64
+module foo;
+
+int baz @extern("foobar") = 123;
+
+/* #expect: foo.ll
+
+@foobar = local_unnamed_addr global i32 123, align 4
\ No newline at end of file
diff --git a/test/test_suite7/globals/global_init.c3 b/test/test_suite7/globals/global_init.c3
new file mode 100644
index 000000000..7bffb33bd
--- /dev/null
+++ b/test/test_suite7/globals/global_init.c3
@@ -0,0 +1,22 @@
+// TODO string str = "hello";
+char* str2 = "hello";
+String str3 = "hello";
+
+
+int[2] a1 = { 1, 2 };
+
+int[2] a2 = 30;   // #error: 'int' to 'int[2]'
+
+ichar[?] a; // #error: Inferred array types can only be used in declarations with initializers
+
+ichar ca = 0;
+ichar cb = 1;
+
+ichar cc = 127;
+ichar cd = -128;
+
+ichar ce = 128;       // #error: The value '128' is out of range for 'ichar'
+ichar cf = -129;      // #error: The value '-129' is out of range for 'ichar'
+
+ichar cg = 70000;     // #error: The value '70000' is out of range for 'ichar'
+ichar ch = -70000;    // #error: The value '-70000' is out of range for 'ichar'
\ No newline at end of file
diff --git a/test/test_suite7/globals/global_no_init.c3t b/test/test_suite7/globals/global_no_init.c3t
new file mode 100644
index 000000000..0b7f6aa83
--- /dev/null
+++ b/test/test_suite7/globals/global_no_init.c3t
@@ -0,0 +1,33 @@
+// #target: macos-x64
+module test;
+
+struct Abc
+{
+	int[100] x;
+}
+int z @noinit;
+Abc y @noinit;
+
+int a, b, c;
+int x1, y1 @noinit;
+tlocal int w, v;
+
+fn void main()
+{
+	z = y.x[0];
+}
+
+/* #expect: test.ll
+
+@test.z = local_unnamed_addr global i32 undef, align 4
+@test.y = local_unnamed_addr global %Abc undef, align 4
+@test.a = local_unnamed_addr global i32 0, align 4
+@test.b = local_unnamed_addr global i32 0, align 4
+@test.c = local_unnamed_addr global i32 0, align 4
+@test.x1 = local_unnamed_addr global i32 undef, align 4
+@test.y1 = local_unnamed_addr global i32 undef, align 4
+@test.w = thread_local local_unnamed_addr global i32 0, align 4
+@test.v = thread_local local_unnamed_addr global i32 0, align 4
+
+%0 = load i32, ptr @test.y, align 4
+store i32 %0, ptr @test.z, align 4
diff --git a/test/test_suite7/globals/init_with_err.c3t b/test/test_suite7/globals/init_with_err.c3t
new file mode 100644
index 000000000..ca39f116c
--- /dev/null
+++ b/test/test_suite7/globals/init_with_err.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fault Hello
+{
+	FOO
+}
+const String! ABC = Hello.FOO?;
+String! abc = Hello.FOO?;
+const String! DEF = ABC;
+String! bcd = ABC;
+
+
+/* #expect: test.ll
+
+@test.ABC.f = unnamed_addr global i64 ptrtoint (ptr @"test.Hello$FOO" to i64), align 8
+@test.abc.f = unnamed_addr global i64 ptrtoint (ptr @"test.Hello$FOO" to i64), align 8
+@test.DEF.f = unnamed_addr global i64 ptrtoint (ptr @"test.Hello$FOO" to i64), align 8
+@test.bcd.f = unnamed_addr global i64 ptrtoint (ptr @"test.Hello$FOO" to i64), align 8
+@test.ABC = local_unnamed_addr constant %"char[]" zeroinitializer, align 8
+@test.abc = local_unnamed_addr global %"char[]" zeroinitializer, align 8
+@test.DEF = local_unnamed_addr constant %"char[]" zeroinitializer, align 8
+@test.bcd = local_unnamed_addr global %"char[]" zeroinitializer, align 8
diff --git a/test/test_suite7/globals/misplaced_const.c3 b/test/test_suite7/globals/misplaced_const.c3
new file mode 100644
index 000000000..6ea51e0c8
--- /dev/null
+++ b/test/test_suite7/globals/misplaced_const.c3
@@ -0,0 +1,6 @@
+const FOO = 3;
+int BAR = 4; // #error: This looks like a constant variable, did you forget 'const'?
+
+const BAZ = "ofke";
+
+FOOBAR; // #error: Expected the start of a global declaration here
\ No newline at end of file
diff --git a/test/test_suite7/globals/recursive_globals.c3 b/test/test_suite7/globals/recursive_globals.c3
new file mode 100644
index 000000000..d6d2a725f
--- /dev/null
+++ b/test/test_suite7/globals/recursive_globals.c3
@@ -0,0 +1,3 @@
+void *x = &x;
+
+int y = 1 + y; // #error: This looks like the initialization of the variable was circular.
\ No newline at end of file
diff --git a/test/test_suite7/globals/recursive_locals.c3 b/test/test_suite7/globals/recursive_locals.c3
new file mode 100644
index 000000000..1709dbf9f
--- /dev/null
+++ b/test/test_suite7/globals/recursive_locals.c3
@@ -0,0 +1,13 @@
+
+struct List
+{
+  int x;
+  List* next;
+}
+
+const List A = { 7, &B };
+const List B = { 8, &A };
+
+extern List d;
+
+List c = { 7, &d };
diff --git a/test/test_suite7/globals/self_referencing_local.c3 b/test/test_suite7/globals/self_referencing_local.c3
new file mode 100644
index 000000000..6da61b7a8
--- /dev/null
+++ b/test/test_suite7/globals/self_referencing_local.c3
@@ -0,0 +1,5 @@
+fn void test()
+{
+    void* x = &x;
+    int y = y; // #error: This looks like the initialization of the variable was circular.
+}
\ No newline at end of file
diff --git a/test/test_suite7/globals/static_global.c3 b/test/test_suite7/globals/static_global.c3
new file mode 100644
index 000000000..ddd5ccb27
--- /dev/null
+++ b/test/test_suite7/globals/static_global.c3
@@ -0,0 +1 @@
+static int ifej; // #error: 'static' is only used
\ No newline at end of file
diff --git a/test/test_suite7/import/access_other_module.c3t b/test/test_suite7/import/access_other_module.c3t
new file mode 100644
index 000000000..4853506ca
--- /dev/null
+++ b/test/test_suite7/import/access_other_module.c3t
@@ -0,0 +1,23 @@
+// #target: macos-x64
+module foo;
+import libc;
+fn void main()
+{
+	void* foekf = &libc::printf;
+	int* xok = &libc::EXIT_SUCCESS;
+}
+
+/* #expect: foo.ll
+
+@libc.EXIT_SUCCESS = extern_weak constant i32, align 4
+
+define void @foo.main() #0 {
+entry:
+  %foekf = alloca ptr, align 8
+  %xok = alloca ptr, align 8
+  store ptr @printf, ptr %foekf, align 8
+  store ptr @libc.EXIT_SUCCESS, ptr %xok, align 8
+  ret void
+}
+
+declare i32 @printf(ptr, ...)
\ No newline at end of file
diff --git a/test/test_suite7/import/autoimport.c3 b/test/test_suite7/import/autoimport.c3
new file mode 100644
index 000000000..8b80f199e
--- /dev/null
+++ b/test/test_suite7/import/autoimport.c3
@@ -0,0 +1,36 @@
+module foo;
+
+fn int test() @builtin
+{
+    return 1;
+}
+
+macro int testm() @builtin
+{
+    return 1;
+}
+
+fn int test1()
+{
+    return 1;
+}
+
+macro int testm1()
+{
+    return 1;
+}
+
+module bar;
+import foo;
+
+fn void main()
+{
+    testm();
+    test();
+}
+
+fn void main2()
+{
+    testm1(); // #error: Macros from other modules must be prefixed with the module nam
+    test1();  // #error: Functions from other modules must be prefixed with the module nam
+}
\ No newline at end of file
diff --git a/test/test_suite7/import/import_error.c3 b/test/test_suite7/import/import_error.c3
new file mode 100644
index 000000000..4be9e0f7c
--- /dev/null
+++ b/test/test_suite7/import/import_error.c3
@@ -0,0 +1,6 @@
+module test;
+import std::core::mem;
+import hello_world; // #error: No module named
+import test; // #error: Importing the current
+
+fn void hello() { }
\ No newline at end of file
diff --git a/test/test_suite7/import/import_error_multi.c3 b/test/test_suite7/import/import_error_multi.c3
new file mode 100644
index 000000000..e6a761a42
--- /dev/null
+++ b/test/test_suite7/import/import_error_multi.c3
@@ -0,0 +1 @@
+import foo, ; // #error: Another module name was expected after
\ No newline at end of file
diff --git a/test/test_suite7/import/import_error_string.c3 b/test/test_suite7/import/import_error_string.c3
new file mode 100644
index 000000000..1810dcfe3
--- /dev/null
+++ b/test/test_suite7/import/import_error_string.c3
@@ -0,0 +1 @@
+import "Hello my friend"; // #error: An import should be followed by a plain identifier, not a string. Did you accidentally put the module name between ""?
\ No newline at end of file
diff --git a/test/test_suite7/import/import_implicit.c3 b/test/test_suite7/import/import_implicit.c3
new file mode 100644
index 000000000..e88d58023
--- /dev/null
+++ b/test/test_suite7/import/import_implicit.c3
@@ -0,0 +1,17 @@
+module abc;
+
+struct Foo
+{
+    int a;
+    int b;
+}
+
+fn void test() {}
+
+module dde;
+
+fn void test()
+{
+    abc::test(); // #error: Did you mean the function 'abc::test'
+    Foo f; // #error: Did you mean the struct 'Foo'
+}
\ No newline at end of file
diff --git a/test/test_suite7/import/import_nonrecurse.c3 b/test/test_suite7/import/import_nonrecurse.c3
new file mode 100644
index 000000000..75c6baf32
--- /dev/null
+++ b/test/test_suite7/import/import_nonrecurse.c3
@@ -0,0 +1,5 @@
+import std::io @norecurse;
+fn void main()
+{
+	(void)file::open("test", "r"); // #error: std::io::file::open
+}
\ No newline at end of file
diff --git a/test/test_suite7/import/import_same.c3 b/test/test_suite7/import/import_same.c3
new file mode 100644
index 000000000..96bd65b50
--- /dev/null
+++ b/test/test_suite7/import/import_same.c3
@@ -0,0 +1,10 @@
+module foo::abc;
+import bar;
+
+fn int test1()
+{
+	return abc::test();
+}
+
+module bar::abc;
+fn int test() { return 1; }
\ No newline at end of file
diff --git a/test/test_suite7/import/import_twice.c3 b/test/test_suite7/import/import_twice.c3
new file mode 100644
index 000000000..815d41040
--- /dev/null
+++ b/test/test_suite7/import/import_twice.c3
@@ -0,0 +1,8 @@
+module foo;
+import std::io;
+import std::io; // #error: imported more than
+
+fn void main()
+{
+	io::printn("Hello world");
+}
diff --git a/test/test_suite7/import/import_works.c3t b/test/test_suite7/import/import_works.c3t
new file mode 100644
index 000000000..c524cd8cf
--- /dev/null
+++ b/test/test_suite7/import/import_works.c3t
@@ -0,0 +1,3 @@
+import std::io, std::core::mem;
+
+int foo = 1;
\ No newline at end of file
diff --git a/test/test_suite7/initialize/init_non_resolved_type.c3 b/test/test_suite7/initialize/init_non_resolved_type.c3
new file mode 100644
index 000000000..6809310fe
--- /dev/null
+++ b/test/test_suite7/initialize/init_non_resolved_type.c3
@@ -0,0 +1 @@
+const IS_ARCH_LITTLE_ENDIAN = (uint)((UIntLE){(uint)1}.val) == 1; // #error: This expression cannot be evaluated at compile time
diff --git a/test/test_suite7/initialize/initialize_bad_prio.c3 b/test/test_suite7/initialize/initialize_bad_prio.c3
new file mode 100644
index 000000000..b1876c821
--- /dev/null
+++ b/test/test_suite7/initialize/initialize_bad_prio.c3
@@ -0,0 +1,16 @@
+
+fn void init1() @init("hello") // #error: Expected an integer value
+{
+}
+
+fn void init2() @init(1, 2) // #error: Too many arguments for
+{
+}
+
+fn void init3() @init(0) // #error: The priority must be a value
+{
+}
+
+fn void init4() @init(65536) // #error: The priority must be a value
+{
+}
\ No newline at end of file
diff --git a/test/test_suite7/initialize/initialize_finalize.c3t b/test/test_suite7/initialize/initialize_finalize.c3t
new file mode 100644
index 000000000..f7e4a9254
--- /dev/null
+++ b/test/test_suite7/initialize/initialize_finalize.c3t
@@ -0,0 +1,67 @@
+// #target: linux-x64
+module test;
+import std::io;
+
+fn void main()
+{
+	io::printn("Hello, world!");
+}
+extern fn void puts(char*);
+
+fn void startup2() @init(300)
+{
+	puts("Hello startup2");
+}
+fn void start_main() @init
+{
+	puts("Let's start main...");
+}
+fn void startup1() @init(200)
+{
+	puts("Hello startup");
+}
+
+fn void empty_startup() @init
+{}
+
+fn void shutdown() @finalizer
+{
+	puts("Bye bye");
+}
+
+/* #expect: test.ll
+
+@llvm.global_ctors = appending global [5 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 300, ptr @test.startup2, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @test.start_main, ptr null }, { i32, ptr, ptr } { i32 200, ptr @test.startup1, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @test.empty_startup, ptr null }, { i32, ptr, ptr } { i32 65535, ptr @.__c3_atexit_test.shutdown, ptr null }]
+
+define void @test.startup2() #0 {
+entry:
+  call void @puts(ptr @.str.1)
+  ret void
+}
+
+define void @test.start_main() #0 {
+entry:
+  call void @puts(ptr @.str.2)
+  ret void
+}
+
+define void @test.startup1() #0 {
+entry:
+  call void @puts(ptr @.str.3)
+  ret void
+}
+define void @test.empty_startup() #0 {
+entry:
+  ret void
+}
+
+define void @test.shutdown() #0 {
+entry:
+  call void @puts(ptr @.str.4)
+  ret void
+}
+define weak void @.__c3_atexit_test.shutdown() comdat {
+entry:
+  call void @atexit(ptr @test.shutdown)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/initialize/initialize_jump.c3 b/test/test_suite7/initialize/initialize_jump.c3
new file mode 100644
index 000000000..f223cd455
--- /dev/null
+++ b/test/test_suite7/initialize/initialize_jump.c3
@@ -0,0 +1,9 @@
+fn void foo() @init
+{
+	return; // This is fine
+}
+
+fn int foo2() @init // #error: '@init' and '@finalizer' functions may only
+{
+	return 123;
+}
\ No newline at end of file
diff --git a/test/test_suite7/initialize/initialize_parse_error.c3 b/test/test_suite7/initialize/initialize_parse_error.c3
new file mode 100644
index 000000000..f07a83415
--- /dev/null
+++ b/test/test_suite7/initialize/initialize_parse_error.c3
@@ -0,0 +1 @@
+static foo {} ; // #error: 'static' is only used
diff --git a/test/test_suite7/initialize/initialize_prio.c3 b/test/test_suite7/initialize/initialize_prio.c3
new file mode 100644
index 000000000..360254fe7
--- /dev/null
+++ b/test/test_suite7/initialize/initialize_prio.c3
@@ -0,0 +1,3 @@
+fn void test() @init() // #error: An expression was expected.
+{
+}
diff --git a/test/test_suite7/initialize/initializer_access.c3 b/test/test_suite7/initialize/initializer_access.c3
new file mode 100644
index 000000000..f59bf36f1
--- /dev/null
+++ b/test/test_suite7/initialize/initializer_access.c3
@@ -0,0 +1,10 @@
+module test;
+struct Abc
+{
+	int[2] a;
+	int b;
+}
+fn int main()
+{
+	Abc a = { .a = {} .b = 3 }; // #error: A comma or '}' was expected here.
+}
diff --git a/test/test_suite7/initialize/initializer_var.c3t b/test/test_suite7/initialize/initializer_var.c3t
new file mode 100644
index 000000000..8f73423fc
--- /dev/null
+++ b/test/test_suite7/initialize/initializer_var.c3t
@@ -0,0 +1,7 @@
+module test;
+
+fn void init() @init
+{
+	int a;
+	a = 1;
+}
diff --git a/test/test_suite7/initializer_lists/disallowed_lists.c3 b/test/test_suite7/initializer_lists/disallowed_lists.c3
new file mode 100644
index 000000000..5ee323e37
--- /dev/null
+++ b/test/test_suite7/initializer_lists/disallowed_lists.c3
@@ -0,0 +1,8 @@
+fn void test()
+{
+    char* hello = "123";
+    String a = { '1', '2', '3' };
+    char[?] b = { '1', '2', '3' };
+    char[3] c = { '1', '2', '3' };
+    char* d = { '1', '2', '3' }; // #error: Pointers cannot be initialized using an initializer list, instead you need to take the address of an array
+}
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/fasta.c3t b/test/test_suite7/initializer_lists/fasta.c3t
new file mode 100644
index 000000000..d6600add0
--- /dev/null
+++ b/test/test_suite7/initializer_lists/fasta.c3t
@@ -0,0 +1,340 @@
+// #target: macos-x64
+module fasta;
+
+const IM = 139968u;
+const IA = 3877u;
+const IC = 29573u;
+const SEED = 42u;
+
+uint seed = SEED;
+
+fn float fasta_rand(float maxval)
+{
+	seed = (seed * IA + IC) % IM;
+	return maxval * seed / IM;
+}
+
+char[] alu @private =
+  "GGCCGGGCGCGGTGGCTCACGCCTGTAATCCCAGCACTTTGG"
+  "GAGGCCGAGGCGGGCGGATCACCTGAGGTCAGGAGTTCGAGA"
+  "CCAGCCTGGCCAACATGGTGAAACCCCGTCTCTACTAAAAAT"
+  "ACAAAAATTAGCCGGGCGTGGTGGCGCGCGCCTGTAATCCCA"
+  "GCTACTCGGGAGGCTGAGGCAGGAGAATCGCTTGAACCCGGG"
+  "AGGCGGAGGTTGCAGTGAGCCGAGATCGCGCCACTGCACTCC"
+  "AGCCTGGGCGACAGAGCGAGACTCCGTCTCAAAAA";
+
+extern fn int atoi(char *s);
+extern fn int printf(char *s, ...);
+extern fn void putchar(int c);
+
+char[] iub = "acgtBDHKMNRSVWY";
+double[] iub_p = {
+  0.27,
+  0.12,
+  0.12,
+  0.27,
+  0.02,
+  0.02,
+  0.02,
+  0.02,
+  0.02,
+  0.02,
+  0.02,
+  0.02,
+  0.02,
+  0.02,
+  0.02 };
+
+char[] homosapiens = "acgt";
+double[] homosapiens_p = {
+  0.3029549426680,
+  0.1979883004921,
+  0.1975473066391,
+  0.3015094502008
+};
+
+const LINELEN = 60;
+
+// slowest character-at-a-time output
+fn void repeat_fasta(char[] seq, int n)
+{
+	usz len = seq.len;
+	int i @noinit;
+	for (i = 0; i < n; i++)
+	{
+		putchar(seq[i % len]);
+		if (i % LINELEN == LINELEN - 1) putchar('\n');
+	}
+	if (i % LINELEN != 0) putchar('\n');
+}
+
+fn void random_fasta(char[] symb, double[] probability, int n)
+{
+	assert(symb.len == probability.len);
+	int len = probability.len;
+	int i @noinit;
+	for (i = 0; i < n; i++)
+	{
+		double v = fasta_rand(1.0);
+		/* slowest idiomatic linear lookup.  Fast if len is short though. */
+		int j @noinit;
+		for (j = 0; j < len - 1; j++)
+		{
+			v -= probability[j];
+			if (v < 0) break;
+		}
+		putchar(symb[j]);
+		if (i % LINELEN == LINELEN - 1) putchar('\n');
+	}
+	if (i % LINELEN != 0) putchar('\n');
+}
+
+fn int main(int argc, char **argv)
+{
+	int n = 1000;
+	if (argc > 1) n = atoi(argv[1]);
+
+	printf(">ONE Homo sapiens alu\n");
+	repeat_fasta(alu, n * 2);
+
+	printf(">TWO IUB ambiguity codes\n");
+	random_fasta(iub, iub_p, n * 3);
+
+	printf(">THREE Homo sapiens frequency\n");
+	random_fasta(homosapiens, homosapiens_p, n * 5);
+
+	return 0;
+}
+
+/* #expect: fasta.ll
+
+%"char[]" = type { ptr, i64 }
+%"double[]" = type { ptr, i64 }
+@fasta.IM = local_unnamed_addr constant i32 139968, align 4
+@fasta.IA = local_unnamed_addr constant i32 3877, align 4
+@fasta.IC = local_unnamed_addr constant i32 29573, align 4
+@fasta.SEED = local_unnamed_addr constant i32 42, align 4
+@fasta.seed = local_unnamed_addr global i32 42, align 4
+@.str = private unnamed_addr constant [288 x i8] c"GGCCGGGCGCGGTGGCTCACGCCTGTAATCCCAGCACTTTGGGAGGCCGAGGCGGGCGGATCACCTGAGGTCAGGAGTTCGAGACCAGCCTGGCCAACATGGTGAAACCCCGTCTCTACTAAAAATACAAAAATTAGCCGGGCGTGGTGGCGCGCGCCTGTAATCCCAGCTACTCGGGAGGCTGAGGCAGGAGAATCGCTTGAACCCGGGAGGCGGAGGTTGCAGTGAGCCGAGATCGCGCCACTGCACTCCAGCCTGGGCGACAGAGCGAGACTCCGTCTCAAAAA\00", align 1
+@fasta.alu = internal unnamed_addr global %"char[]" { ptr @.str, i64 287 }, align 8
+@.str.11 = private unnamed_addr constant [16 x i8] c"acgtBDHKMNRSVWY\00", align 1
+@fasta.iub = local_unnamed_addr global %"char[]" { ptr @.str.11, i64 15 }, align 8
+@.__const_slice = private unnamed_addr global [15 x double] [double 2.700000e-01, double 1.200000e-01, double 1.200000e-01, double 2.700000e-01, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02, double 2.000000e-02], align 16
+@fasta.iub_p = local_unnamed_addr global %"double[]" { ptr @.__const_slice, i64 15 }, align 8
+@.str.12 = private unnamed_addr constant [5 x i8] c"acgt\00", align 1
+@fasta.homosapiens = local_unnamed_addr global %"char[]" { ptr @.str.12, i64 4 }, align 8
+@.__const_slice.13 = private unnamed_addr global [4 x double] [double 0x3FD3639D20BAEB5B, double 0x3FC957AE3DCD561B, double 0x3FC9493AEAB6C2BF, double 0x3FD34BEE4B030838], align 16
+@fasta.homosapiens_p = local_unnamed_addr global %"double[]" { ptr @.__const_slice.13, i64 4 }, align 8
+@fasta.LINELEN = local_unnamed_addr constant i32 60, align 4
+@.str.14 = private unnamed_addr constant [23 x i8] c">ONE Homo sapiens alu\0A\00", align 1
+@.str.15 = private unnamed_addr constant [26 x i8] c">TWO IUB ambiguity codes\0A\00", align 1
+@.str.16 = private unnamed_addr constant [31 x i8] c">THREE Homo sapiens frequency\0A\00", align 1
+
+; Function Attrs:
+define float @fasta.fasta_rand(float %0) #0 {
+entry:
+  %1 = load i32, ptr @fasta.seed, align 4
+  %mul = mul i32 %1, 3877
+  %add = add i32 %mul, 29573
+  %umod = urem i32 %add, 139968
+  store i32 %umod, ptr @fasta.seed, align 4
+  %2 = load i32, ptr @fasta.seed, align 4
+  %uifp = uitofp i32 %2 to float
+  %fmul = fmul float %0, %uifp
+  %fdiv = fdiv float %fmul, 1.399680e+05
+  ret float %fdiv
+}
+
+; Function Attrs:
+declare i32 @atoi(ptr) #0
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+declare void @putchar(i32) #0
+
+; Function Attrs:
+define void @fasta.repeat_fasta(ptr %0, i64 %1, i32 %2) #0 {
+entry:
+  %seq = alloca %"char[]", align 8
+  %len = alloca i64, align 8
+  %i = alloca i32, align 4
+  store ptr %0, ptr %seq, align 8
+  %ptradd = getelementptr inbounds i8, ptr %seq, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %seq, i64 8
+  %3 = load i64, ptr %ptradd1, align 8
+  store i64 %3, ptr %len, align 8
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %if.exit, %entry
+  %4 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %4, %2
+  br i1 %lt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %5 = load ptr, ptr %seq, align 8
+  %6 = load i32, ptr %i, align 4
+  %sext = sext i32 %6 to i64
+  %7 = load i64, ptr %len, align 8
+  %smod = srem i64 %sext, %7
+  %ptradd2 = getelementptr inbounds i8, ptr %5, i64 %smod
+  %8 = load i8, ptr %ptradd2, align 1
+  %zext = zext i8 %8 to i32
+  call void @putchar(i32 %zext)
+  %9 = load i32, ptr %i, align 4
+  %smod3 = srem i32 %9, 60
+  %eq = icmp eq i32 %smod3, 59
+  br i1 %eq, label %if.then, label %if.exit
+if.then:                                          ; preds = %loop.body
+  call void @putchar(i32 10)
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %loop.body
+  %10 = load i32, ptr %i, align 4
+  %add = add i32 %10, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  %11 = load i32, ptr %i, align 4
+  %smod4 = srem i32 %11, 60
+  %neq = icmp ne i32 %smod4, 0
+  br i1 %neq, label %if.then5, label %if.exit6
+if.then5:                                         ; preds = %loop.exit
+  call void @putchar(i32 10)
+  br label %if.exit6
+if.exit6:                                         ; preds = %if.then5, %loop.exit
+  ret void
+}
+
+; Function Attrs:
+define void @fasta.random_fasta(ptr %0, i64 %1, ptr %2, i64 %3, i32 %4) #0 {
+entry:
+  %symb = alloca %"char[]", align 8
+  %probability = alloca %"double[]", align 8
+  %len = alloca i32, align 4
+  %i = alloca i32, align 4
+  %v = alloca double, align 8
+  %j = alloca i32, align 4
+  store ptr %0, ptr %symb, align 8
+  %ptradd = getelementptr inbounds i8, ptr %symb, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  store ptr %2, ptr %probability, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %probability, i64 8
+  store i64 %3, ptr %ptradd1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %symb, i64 8
+  %5 = load i64, ptr %ptradd2, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %probability, i64 8
+  %6 = load i64, ptr %ptradd3, align 8
+  %eq = icmp eq i64 %5, %6
+  call void @llvm.assume(i1 %eq)
+  %ptradd4 = getelementptr inbounds i8, ptr %probability, i64 8
+  %7 = load i64, ptr %ptradd4, align 8
+  %trunc = trunc i64 %7 to i32
+  store i32 %trunc, ptr %len, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %if.exit13, %entry
+  %8 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %8, %4
+  br i1 %lt, label %loop.body, label %loop.exit15
+loop.body:                                        ; preds = %loop.cond
+  %9 = call float @fasta.fasta_rand(float 1.000000e+00)
+  %fpfpext = fpext float %9 to double
+  store double %fpfpext, ptr %v, align 8
+  store i32 0, ptr %j, align 4
+  br label %loop.cond5
+loop.cond5:                                       ; preds = %if.exit, %loop.body
+  %10 = load i32, ptr %j, align 4
+  %11 = load i32, ptr %len, align 4
+  %sub = sub i32 %11, 1
+  %lt6 = icmp slt i32 %10, %sub
+  br i1 %lt6, label %loop.body7, label %loop.exit
+loop.body7:                                       ; preds = %loop.cond5
+  %12 = load double, ptr %v, align 8
+  %13 = load ptr, ptr %probability, align 8
+  %14 = load i32, ptr %j, align 4
+  %sext = sext i32 %14 to i64
+  %ptroffset = getelementptr inbounds [8 x i8], ptr %13, i64 %sext
+  %15 = load double, ptr %ptroffset, align 8
+  %fsub = fsub double %12, %15
+  store double %fsub, ptr %v, align 8
+  %16 = load double, ptr %v, align 8
+  %lt8 = fcmp olt double %16, 0.000000e+00
+  br i1 %lt8, label %if.then, label %if.exit
+if.then:                                          ; preds = %loop.body7
+  br label %loop.exit
+if.exit:                                          ; preds = %loop.body7
+  %17 = load i32, ptr %j, align 4
+  %add = add i32 %17, 1
+  store i32 %add, ptr %j, align 4
+  br label %loop.cond5
+loop.exit:                                        ; preds = %if.then, %loop.cond5
+  %18 = load ptr, ptr %symb, align 8
+  %19 = load i32, ptr %j, align 4
+  %sext9 = sext i32 %19 to i64
+  %ptradd10 = getelementptr inbounds i8, ptr %18, i64 %sext9
+  %20 = load i8, ptr %ptradd10, align 1
+  %zext = zext i8 %20 to i32
+  call void @putchar(i32 %zext)
+  %21 = load i32, ptr %i, align 4
+  %smod = srem i32 %21, 60
+  %eq11 = icmp eq i32 %smod, 59
+  br i1 %eq11, label %if.then12, label %if.exit13
+if.then12:                                        ; preds = %loop.exit
+  call void @putchar(i32 10)
+  br label %if.exit13
+if.exit13:                                        ; preds = %if.then12, %loop.exit
+  %22 = load i32, ptr %i, align 4
+  %add14 = add i32 %22, 1
+  store i32 %add14, ptr %i, align 4
+  br label %loop.cond
+loop.exit15:                                      ; preds = %loop.cond
+  %23 = load i32, ptr %i, align 4
+  %smod16 = srem i32 %23, 60
+  %neq = icmp ne i32 %smod16, 0
+  br i1 %neq, label %if.then17, label %if.exit18
+if.then17:                                        ; preds = %loop.exit15
+  call void @putchar(i32 10)
+  br label %if.exit18
+if.exit18:                                        ; preds = %if.then17, %loop.exit15
+  ret void
+}
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  %n = alloca i32, align 4
+  store i32 1000, ptr %n, align 4
+  %gt = icmp sgt i32 %0, 1
+  br i1 %gt, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  %ptradd = getelementptr inbounds i8, ptr %1, i64 8
+  %2 = load ptr, ptr %ptradd, align 8
+  %3 = call i32 @atoi(ptr %2)
+  store i32 %3, ptr %n, align 4
+  br label %if.exit
+if.exit:                                          ; preds = %if.then, %entry
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.14)
+  %5 = load i32, ptr %n, align 4
+  %mul = mul i32 %5, 2
+  %lo = load ptr, ptr @fasta.alu, align 8
+  %hi = load i64, ptr getelementptr inbounds (i8, ptr @fasta.alu, i64 8), align 8
+  call void @fasta.repeat_fasta(ptr %lo, i64 %hi, i32 %mul)
+  %6 = call i32 (ptr, ...) @printf(ptr @.str.15)
+  %7 = load i32, ptr %n, align 4
+  %mul1 = mul i32 %7, 3
+  %lo2 = load ptr, ptr @fasta.iub, align 8
+  %hi3 = load i64, ptr getelementptr inbounds (i8, ptr @fasta.iub, i64 8), align 8
+  %lo4 = load ptr, ptr @fasta.iub_p, align 8
+  %hi5 = load i64, ptr getelementptr inbounds (i8, ptr @fasta.iub_p, i64 8), align 8
+  call void @fasta.random_fasta(ptr %lo2, i64 %hi3, ptr %lo4, i64 %hi5, i32 %mul1)
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.16)
+  %9 = load i32, ptr %n, align 4
+  %mul6 = mul i32 %9, 5
+  %lo7 = load ptr, ptr @fasta.homosapiens, align 8
+  %hi8 = load i64, ptr getelementptr inbounds (i8, ptr @fasta.homosapiens, i64 8), align 8
+  %lo9 = load ptr, ptr @fasta.homosapiens_p, align 8
+  %hi10 = load i64, ptr getelementptr inbounds (i8, ptr @fasta.homosapiens_p, i64 8), align 8
+  call void @fasta.random_fasta(ptr %lo7, i64 %hi8, ptr %lo9, i64 %hi10, i32 %mul6)
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/general_tests.c3t b/test/test_suite7/initializer_lists/general_tests.c3t
new file mode 100644
index 000000000..170afc755
--- /dev/null
+++ b/test/test_suite7/initializer_lists/general_tests.c3t
@@ -0,0 +1,72 @@
+// #target: macos-x64
+
+union Baz
+{
+    int x;
+    double y;
+}
+struct Bar
+{
+    int x;
+    int y;
+}
+
+fn int test()
+{
+    Baz ffe = { .x = 1 };
+    int[1] azz = {};
+    var $foo = { 11, 22, 33 };
+    static int foo1 = $foo[1];
+    int foo2 = $foo[2];
+    var $foos = { "Hello!" };
+    char* str = $foos[0];
+    bool x = ! (int[]) { 1, 2, 3 };
+    Bar b = {};
+    Baz z = {};
+    int[] sub = {};
+    Bar[] foo = {};
+    Baz[3] baz = {};
+    return 1;
+}
+
+
+/* #expect: general_tests.ll
+
+%Baz = type { double }
+%Bar = type { i32, i32 }
+%"int[]" = type { ptr, i64 }
+%"Bar[]" = type { ptr, i64 }
+
+@"$ct.general_tests.Baz" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.general_tests.Bar" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant { i32, [4 x i8] } { i32 1, [4 x i8] undef }, align 8
+@test.foo1 = internal unnamed_addr global i32 22, align 4
+@.str = private unnamed_addr constant [7 x i8] c"Hello!\00", align 1
+
+; Function Attrs:
+define i32 @general_tests.test() #0 {
+entry:
+  %ffe = alloca %Baz, align 8
+  %azz = alloca [1 x i32], align 4
+  %foo2 = alloca i32, align 4
+  %str = alloca ptr, align 8
+  %x = alloca i8, align 1
+  %b = alloca %Bar, align 4
+  %z = alloca %Baz, align 8
+  %sub = alloca %"int[]", align 8
+  %foo = alloca %"Bar[]", align 8
+  %baz = alloca [3 x %Baz], align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %ffe, ptr align 8 @.__const, i32 8, i1 false)
+  store i32 0, ptr %azz, align 4
+  store i32 33, ptr %foo2, align 4
+  store ptr @.str, ptr %str, align 8
+  store i8 0, ptr %x, align 1
+  store i32 0, ptr %b, align 4
+  %ptradd = getelementptr inbounds i8, ptr %b, i64 4
+  store i32 0, ptr %ptradd, align 4
+  call void @llvm.memset.p0.i64(ptr align 8 %z, i8 0, i64 8, i1 false)
+  store %"int[]" zeroinitializer, ptr %sub, align 8
+  store %"Bar[]" zeroinitializer, ptr %foo, align 8
+  call void @llvm.memset.p0.i64(ptr align 16 %baz, i8 0, i64 24, i1 false)
+  ret i32 1
+}
diff --git a/test/test_suite7/initializer_lists/indexing_into_complist.c3 b/test/test_suite7/initializer_lists/indexing_into_complist.c3
new file mode 100644
index 000000000..d8ce85f54
--- /dev/null
+++ b/test/test_suite7/initializer_lists/indexing_into_complist.c3
@@ -0,0 +1,5 @@
+fn void test()
+{
+    char* c = { 1, 3, "hello"}[2];
+    int x;
+}
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/infer_with_init.c3t b/test/test_suite7/initializer_lists/infer_with_init.c3t
new file mode 100644
index 000000000..260dedb56
--- /dev/null
+++ b/test/test_suite7/initializer_lists/infer_with_init.c3t
@@ -0,0 +1,20 @@
+// #target: windows-x64
+module test;
+const int[?] X = (int[?]) { 1, 2, 3 };
+int[?] y = (int[?]) { 1, 2, 3 };
+
+fn void main()
+{
+	int x = $typeof((int[?]) { 1, 2, 3}).len;
+	int z = X.len;
+	int w = y.len;
+}
+
+/* #expect: test.ll
+
+@test.X = local_unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@test.y = local_unnamed_addr global [3 x i32] [i32 1, i32 2, i32 3], align 4
+
+  store i32 3, ptr %x, align 4
+  store i32 3, ptr %z, align 4
+  store i32 3, ptr %w, align 4
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/init_any_interface.c3 b/test/test_suite7/initializer_lists/init_any_interface.c3
new file mode 100644
index 000000000..d58f141de
--- /dev/null
+++ b/test/test_suite7/initializer_lists/init_any_interface.c3
@@ -0,0 +1,23 @@
+module test;
+
+interface Foo{}
+
+struct Bar (Foo)
+{
+  int baz;
+}
+
+fn int main() {
+  Test(<Foo>) a = {{}};
+  Test(<any>) b = {{}};
+  Test(<Foo>) a2 = {(Bar){}}; // #error: It is not possible to cast
+
+  return 0;
+}
+
+module test::generic(<Type>);
+
+struct Test
+{
+  Type test;
+}
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/initializers_to_macros.c3 b/test/test_suite7/initializer_lists/initializers_to_macros.c3
new file mode 100644
index 000000000..f464c2625
--- /dev/null
+++ b/test/test_suite7/initializer_lists/initializers_to_macros.c3
@@ -0,0 +1,11 @@
+
+macro test(foo)
+{
+	$typeof(foo) x = foo;
+}
+
+fn void main()
+{
+	test((int[]) { 1, 2 });
+	test({ 1, 2 }); // #error: It is only possible to use an untyped list as a
+}
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/ranges_to_dynamic.c3t b/test/test_suite7/initializer_lists/ranges_to_dynamic.c3t
new file mode 100644
index 000000000..70106209a
--- /dev/null
+++ b/test/test_suite7/initializer_lists/ranges_to_dynamic.c3t
@@ -0,0 +1,63 @@
+// #target: mingw-x64
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void test(int x)
+{
+    int[10] y = { [0..3] = 4, [6..8] = x };
+    foreach (int v : y)
+    {
+        printf("%d\n", v);
+    }
+}
+
+fn void main()
+{
+    test(101);
+}
+
+/* #expect: test.ll
+
+define void @test.test(i32 %0) #0 {
+entry:
+  %y = alloca [10 x i32], align 16
+  %.anon = alloca i64, align 8
+  %v = alloca i32, align 4
+  call void @llvm.memset.p0.i64(ptr align 16 %y, i8 0, i64 40, i1 false)
+  store i32 4, ptr %y, align 4
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 4
+  store i32 4, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 8
+  store i32 4, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %y, i64 12
+  store i32 4, ptr %ptradd2, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %y, i64 24
+  store i32 %0, ptr %ptradd3, align 4
+  %ptradd4 = getelementptr inbounds i8, ptr %y, i64 28
+  store i32 %0, ptr %ptradd4, align 4
+  %ptradd5 = getelementptr inbounds i8, ptr %y, i64 32
+  store i32 %0, ptr %ptradd5, align 4
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 10, %1
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %y, i64 %2
+  %3 = load i32, ptr %ptroffset, align 4
+  store i32 %3, ptr %v, align 4
+  %4 = load i32, ptr %v, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %4)
+  %5 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %5, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/statics.c3t b/test/test_suite7/initializer_lists/statics.c3t
new file mode 100644
index 000000000..725e9f1c3
--- /dev/null
+++ b/test/test_suite7/initializer_lists/statics.c3t
@@ -0,0 +1,72 @@
+// #target: macos-x64
+import std::io;
+import libc;
+union Baz
+{
+    int x;
+    double y;
+}
+struct Bar
+{
+    int x;
+    int y;
+}
+
+
+fn void test()
+{
+    Bar[] b = { { 1, 2 } };
+    static Bar[] c = { { 1, 2 } };
+    libc::printf("%d %d\n", b[0].y, c[0].y);
+    b[0].y += 1;
+    c[0].y += 1;
+
+}
+fn int main()
+{
+    test();
+    test();
+    test();
+    return 1;
+}
+
+/* #expect: statics.ll
+
+%Bar = type { i32, i32 }
+%"Bar[]" = type { ptr, i64 }
+
+@"$ct.statics.Baz" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.statics.Bar" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant [1 x %Bar] [%Bar { i32 1, i32 2 }], align 4
+@.__const_slice = private unnamed_addr global [1 x %Bar] [%Bar { i32 1, i32 2 }], align 4
+@test.c = internal unnamed_addr global %"Bar[]" { ptr @.__const_slice, i64 1 }, align 8
+@.str = private unnamed_addr constant [7 x i8] c"%d %d\0A\00", align 1
+
+; Function Attrs:
+define void @statics.test() #0 {
+entry:
+  %b = alloca %"Bar[]", align 8
+  %literal = alloca [1 x %Bar], align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 8, i1 false)
+  %0 = insertvalue %"Bar[]" undef, ptr %literal, 0
+  %1 = insertvalue %"Bar[]" %0, i64 1, 1
+  store %"Bar[]" %1, ptr %b, align 8
+  %2 = load ptr, ptr %b, align 8
+  %ptradd = getelementptr inbounds i8, ptr %2, i64 4
+  %3 = load ptr, ptr @test.c, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %3, i64 4
+  %4 = load i32, ptr %ptradd, align 4
+  %5 = load i32, ptr %ptradd1, align 4
+  %6 = call i32 (ptr, ...) @printf(ptr @.str, i32 %4, i32 %5)
+  %7 = load ptr, ptr %b, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %7, i64 4
+  %8 = load i32, ptr %ptradd2, align 4
+  %add = add i32 %8, 1
+  store i32 %add, ptr %ptradd2, align 4
+  %9 = load ptr, ptr @test.c, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %9, i64 4
+  %10 = load i32, ptr %ptradd3, align 4
+  %add4 = add i32 %10, 1
+  store i32 %add4, ptr %ptradd3, align 4
+  ret void
+}
diff --git a/test/test_suite7/initializer_lists/subarrays.c3t b/test/test_suite7/initializer_lists/subarrays.c3t
new file mode 100644
index 000000000..b978cb441
--- /dev/null
+++ b/test/test_suite7/initializer_lists/subarrays.c3t
@@ -0,0 +1,256 @@
+// #target: macos-x64
+
+import std::io;
+import std::core::mem;
+import libc;
+union Baz
+{
+    int x;
+    double y;
+}
+struct Bar
+{
+    int x;
+    int y;
+}
+
+
+Bar[] arrbar = { { 3, 4 }, { 8, 9 }};
+int[] xd = { 1, 2 };
+int* fofeo = &&((int[2]){ 3, 4 });
+
+fn int main()
+{
+    Bar w = arrbar[1];
+    libc::printf("%d\n", arrbar[1].x);
+    int[] x = { 1, 2, 3 };
+    int* y = &&((int[3]){ 123, 234, 567 });
+    io::printn("Start:");
+    libc::printf("X len: %d mid element %d\n", (int)(x.len), x[1]);
+    libc::printf("Y mid element %d\n", y[1]);
+    libc::printf("Fofeo second element %d\n", fofeo[1]);
+    Baz ffe = { .x = 1 };
+    int[1] azz = {};
+
+    //var $foo = { 1, 2, 3 };
+    bool xy = !(int[]){ 1, 2, 3 };
+    if (!xy) io::printn("Ok");
+    Bar b = {};
+    Baz z = {};
+    int[] sub = {};
+    Bar[] foo = {};
+    Baz[3] baz = {};
+    return 1;
+}
+
+/* #expect: subarrays.ll
+
+%Bar = type { i32, i32 }
+%"Bar[]" = type { ptr, i64 }
+%"int[]" = type { ptr, i64 }
+%Baz = type { double }
+
+@"$ct.subarrays.Baz" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.subarrays.Bar" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.__const_slice = private unnamed_addr global [2 x %Bar] [%Bar { i32 3, i32 4 }, %Bar { i32 8, i32 9 }], align 16
+@subarrays.arrbar = local_unnamed_addr global %"Bar[]" { ptr @.__const_slice, i64 2 }, align 8
+@.__const_slice.3 = private unnamed_addr global [2 x i32] [i32 1, i32 2], align 4
+@subarrays.xd = local_unnamed_addr global %"int[]" { ptr @.__const_slice.3, i64 2 }, align 8
+@.taddr = private unnamed_addr global [2 x i32] [i32 3, i32 4], align 4
+@subarrays.fofeo = local_unnamed_addr global ptr @.taddr, align 8
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@.__const = private unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@.__const.4 = private unnamed_addr constant [3 x i32] [i32 123, i32 234, i32 567], align 4
+@.str.5 = private unnamed_addr constant [7 x i8] c"Start:\00", align 1
+@.str.6 = private unnamed_addr constant [26 x i8] c"X len: %d mid element %d\0A\00", align 1
+@.str.7 = private unnamed_addr constant [18 x i8] c"Y mid element %d\0A\00", align 1
+@.str.8 = private unnamed_addr constant [25 x i8] c"Fofeo second element %d\0A\00", align 1
+@.__const.9 = private unnamed_addr constant { i32, [4 x i8] } { i32 1, [4 x i8] undef }, align 8
+@.str.10 = private unnamed_addr constant [3 x i8] c"Ok\00", align 1
+
+define i32 @main() #0 {
+entry:
+  %w = alloca %Bar, align 4
+  %x = alloca %"int[]", align 8
+  %literal = alloca [3 x i32], align 4
+  %y = alloca ptr, align 8
+  %literal2 = alloca [3 x i32], align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var4 = alloca i64, align 8
+  %error_var10 = alloca i64, align 8
+  %ffe = alloca %Baz, align 8
+  %azz = alloca [1 x i32], align 4
+  %xy = alloca i8, align 1
+  %len20 = alloca i64, align 8
+  %error_var21 = alloca i64, align 8
+  %retparam23 = alloca i64, align 8
+  %error_var29 = alloca i64, align 8
+  %error_var35 = alloca i64, align 8
+  %b = alloca %Bar, align 4
+  %z = alloca %Baz, align 8
+  %sub = alloca %"int[]", align 8
+  %foo = alloca %"Bar[]", align 8
+  %baz = alloca [3 x %Baz], align 16
+  %0 = load ptr, ptr @subarrays.arrbar, align 8
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %w, ptr align 4 %ptradd, i32 8, i1 false)
+  %1 = load ptr, ptr @subarrays.arrbar, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %1, i64 8
+  %2 = load i32, ptr %ptradd1, align 4
+  %3 = call i32 (ptr, ...) @printf(ptr @.str, i32 %2)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 12, i1 false)
+  %4 = insertvalue %"int[]" undef, ptr %literal, 0
+  %5 = insertvalue %"int[]" %4, i64 3, 1
+  store %"int[]" %5, ptr %x, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal2, ptr align 4 @.__const.4, i32 12, i1 false)
+  store ptr %literal2, ptr %y, align 8
+  %6 = call ptr @std.io.stdout()
+  %7 = call i64 @std.io.File.write(ptr %retparam, ptr %6, ptr @.str.5, i64 6)
+  %not_err = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %8, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %7, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %9 = load i64, ptr %retparam, align 8
+  store i64 %9, ptr %len, align 8
+  %10 = call i64 @std.io.File.write_byte(ptr %6, i8 zeroext 10)
+  %not_err5 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %11, label %after_check7, label %assign_optional6
+
+assign_optional6:                                 ; preds = %noerr_block
+  store i64 %10, ptr %error_var4, align 8
+  br label %guard_block8
+
+after_check7:                                     ; preds = %noerr_block
+  br label %noerr_block9
+
+guard_block8:                                     ; preds = %assign_optional6
+  br label %voiderr
+
+noerr_block9:                                     ; preds = %after_check7
+  %12 = call i64 @std.io.File.flush(ptr %6)
+  %not_err11 = icmp eq i64 %12, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %13, label %after_check13, label %assign_optional12
+
+assign_optional12:                                ; preds = %noerr_block9
+  store i64 %12, ptr %error_var10, align 8
+  br label %guard_block14
+
+after_check13:                                    ; preds = %noerr_block9
+  br label %noerr_block15
+
+guard_block14:                                    ; preds = %assign_optional12
+  br label %voiderr
+
+noerr_block15:                                    ; preds = %after_check13
+  %14 = load i64, ptr %len, align 8
+  %add = add i64 %14, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block15, %guard_block14, %guard_block8, %guard_block
+  %ptradd16 = getelementptr inbounds i8, ptr %x, i64 8
+  %15 = load i64, ptr %ptradd16, align 8
+  %trunc = trunc i64 %15 to i32
+  %16 = load ptr, ptr %x, align 8
+  %ptradd17 = getelementptr inbounds i8, ptr %16, i64 4
+  %17 = load i32, ptr %ptradd17, align 4
+  %18 = call i32 (ptr, ...) @printf(ptr @.str.6, i32 %trunc, i32 %17)
+  %19 = load ptr, ptr %y, align 8
+  %ptradd18 = getelementptr inbounds i8, ptr %19, i64 4
+  %20 = load i32, ptr %ptradd18, align 4
+  %21 = call i32 (ptr, ...) @printf(ptr @.str.7, i32 %20)
+  %22 = load ptr, ptr @subarrays.fofeo, align 8
+  %ptradd19 = getelementptr inbounds i8, ptr %22, i64 4
+  %23 = load i32, ptr %ptradd19, align 4
+  %24 = call i32 (ptr, ...) @printf(ptr @.str.8, i32 %23)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %ffe, ptr align 8 @.__const.9, i32 8, i1 false)
+  store i32 0, ptr %azz, align 4
+  store i8 0, ptr %xy, align 1
+  %25 = load i8, ptr %xy, align 1
+  %26 = trunc i8 %25 to i1
+  %not = xor i1 %26, true
+  br i1 %not, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %voiderr
+  %27 = call ptr @std.io.stdout()
+  %28 = call i64 @std.io.File.write(ptr %retparam23, ptr %27, ptr @.str.10, i64 2)
+  %not_err24 = icmp eq i64 %28, 0
+  %29 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %29, label %after_check26, label %assign_optional25
+
+assign_optional25:                                ; preds = %if.then
+  store i64 %28, ptr %error_var21, align 8
+  br label %guard_block27
+
+after_check26:                                    ; preds = %if.then
+  br label %noerr_block28
+
+guard_block27:                                    ; preds = %assign_optional25
+  br label %voiderr42
+
+noerr_block28:                                    ; preds = %after_check26
+  %30 = load i64, ptr %retparam23, align 8
+  store i64 %30, ptr %len20, align 8
+  %31 = call i64 @std.io.File.write_byte(ptr %27, i8 zeroext 10)
+  %not_err30 = icmp eq i64 %31, 0
+  %32 = call i1 @llvm.expect.i1(i1 %not_err30, i1 true)
+  br i1 %32, label %after_check32, label %assign_optional31
+
+assign_optional31:                                ; preds = %noerr_block28
+  store i64 %31, ptr %error_var29, align 8
+  br label %guard_block33
+
+after_check32:                                    ; preds = %noerr_block28
+  br label %noerr_block34
+
+guard_block33:                                    ; preds = %assign_optional31
+  br label %voiderr42
+
+noerr_block34:                                    ; preds = %after_check32
+  %33 = call i64 @std.io.File.flush(ptr %27)
+  %not_err36 = icmp eq i64 %33, 0
+  %34 = call i1 @llvm.expect.i1(i1 %not_err36, i1 true)
+  br i1 %34, label %after_check38, label %assign_optional37
+
+assign_optional37:                                ; preds = %noerr_block34
+  store i64 %33, ptr %error_var35, align 8
+  br label %guard_block39
+
+after_check38:                                    ; preds = %noerr_block34
+  br label %noerr_block40
+
+guard_block39:                                    ; preds = %assign_optional37
+  br label %voiderr42
+
+noerr_block40:                                    ; preds = %after_check38
+  %35 = load i64, ptr %len20, align 8
+  %add41 = add i64 %35, 1
+  br label %voiderr42
+
+voiderr42:                                        ; preds = %noerr_block40, %guard_block39, %guard_block33, %guard_block27
+  br label %if.exit
+
+if.exit:                                          ; preds = %voiderr42, %voiderr
+  store i32 0, ptr %b, align 4
+  %ptradd43 = getelementptr inbounds i8, ptr %b, i64 4
+  store i32 0, ptr %ptradd43, align 4
+  call void @llvm.memset.p0.i64(ptr align 8 %z, i8 0, i64 8, i1 false)
+  store %"int[]" zeroinitializer, ptr %sub, align 8
+  store %"Bar[]" zeroinitializer, ptr %foo, align 8
+  call void @llvm.memset.p0.i64(ptr align 16 %baz, i8 0, i64 24, i1 false)
+  ret i32 1
+}
diff --git a/test/test_suite7/initializer_lists/zero_inferred_array.c3 b/test/test_suite7/initializer_lists/zero_inferred_array.c3
new file mode 100644
index 000000000..3be21cafb
--- /dev/null
+++ b/test/test_suite7/initializer_lists/zero_inferred_array.c3
@@ -0,0 +1,4 @@
+fn void test()
+{
+    int[?] a = {}; // #error: Zero length
+}
\ No newline at end of file
diff --git a/test/test_suite7/initializer_lists/zero_init.c3t b/test/test_suite7/initializer_lists/zero_init.c3t
new file mode 100644
index 000000000..d0e18dc0f
--- /dev/null
+++ b/test/test_suite7/initializer_lists/zero_init.c3t
@@ -0,0 +1,56 @@
+// #target: macos-x64
+
+union Baz
+{
+    int x;
+    double y;
+}
+struct Bar
+{
+    int x;
+    int y;
+}
+
+struct Mega
+{
+    int[10] z;
+}
+
+fn int test()
+{
+    Mega m = {};
+    int[1] azz = {};
+    Bar b = {};
+    Baz z = {};
+    int[] sub = {};
+    Bar[] foo = {};
+    Baz[3] baz = {};
+    return 1;
+}
+
+/* #expect: zero_init.ll
+
+%Mega = type { [10 x i32] }
+%Bar = type { i32, i32 }
+%Baz = type { double }
+
+define i32 @zero_init.test() #0 {
+entry:
+  %m = alloca %Mega, align 4
+  %azz = alloca [1 x i32], align 4
+  %b = alloca %Bar, align 4
+  %z = alloca %Baz, align 8
+  %sub = alloca %"int[]", align 8
+  %foo = alloca %"Bar[]", align 8
+  %baz = alloca [3 x %Baz], align 16
+  call void @llvm.memset.p0.i64(ptr align 4 %m, i8 0, i64 40, i1 false)
+  store i32 0, ptr %azz, align 4
+  store i32 0, ptr %b, align 4
+  %ptradd = getelementptr inbounds i8, ptr %b, i64 4
+  store i32 0, ptr %ptradd, align 4
+  call void @llvm.memset.p0.i64(ptr align 8 %z, i8 0, i64 8, i1 false)
+  store %"int[]" zeroinitializer, ptr %sub, align 8
+  store %"Bar[]" zeroinitializer, ptr %foo, align 8
+  call void @llvm.memset.p0.i64(ptr align 16 %baz, i8 0, i64 24, i1 false)
+  ret i32 1
+}
diff --git a/test/test_suite7/lambda/ct_lambda.c3t b/test/test_suite7/lambda/ct_lambda.c3t
new file mode 100644
index 000000000..d8132b6ba
--- /dev/null
+++ b/test/test_suite7/lambda/ct_lambda.c3t
@@ -0,0 +1,138 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+def FooFn = fn void(Foo* f, int x);
+
+struct Foo
+{
+	FooFn x;
+}
+
+struct FooTest
+{
+	inline Foo a;
+}
+
+struct FooTest2
+{
+	inline Foo a;
+	int z;
+}
+
+fn void Foo.test(Foo* f, int x)
+{
+	f.x(f, x);
+}
+
+fn void FooTest.init(FooTest* this)
+{
+	static FooFn foo = foo_fn(FooTest);
+	this.x = foo;
+}
+
+fn void FooTest.high(FooTest* t, int x)
+{
+	io::printfn("High: %d", x);
+}
+
+fn void FooTest.low(FooTest* t, int x)
+{
+	io::printfn("Low: %d", x);
+}
+
+fn void FooTest2.init(FooTest2* this, int z)
+{
+	static FooFn foo = foo_fn(FooTest2);
+	this.x = foo;
+	this.z = z;
+}
+
+fn void FooTest2.high(FooTest2* t, int x)
+{
+	io::printfn("High2: %d", x * t.z);
+}
+
+fn void FooTest2.low(FooTest2* t, int x)
+{
+	io::printfn("Low2: %d", x * t.z);
+}
+
+macro FooFn foo_fn($FooType)
+{
+	return fn void(Foo* f, int x) {
+		$FooType* z = ($FooType*)f;
+		if (x > 0) return z.high(x);
+		return z.low(x);
+	};
+}
+
+fn int main()
+{
+	FooTest a;
+	a.init();
+	a.test(10);
+	a.test(0);
+	a.test(-1);
+	FooTest2 b;
+	b.init(100);
+	b.test(10);
+	b.test(0);
+	b.test(-1);
+	return 0;
+}
+
+/* #expect: test.ll
+
+@init.foo = internal unnamed_addr global ptr @"test.foo_fn$lambda1", align 8
+@init.foo.2 = internal unnamed_addr global ptr @"test.foo_fn$lambda2", align 8
+
+define void @test.Foo.test(ptr %0, i32 %1) #0 {
+entry:
+  %2 = load ptr, ptr %0, align 8
+  call void %2(ptr %0, i32 %1)
+  ret void
+}
+
+define void @test.FooTest.init(ptr %0) #0 {
+entry:
+  %1 = load ptr, ptr @init.foo, align 8
+  store ptr %1, ptr %0, align 8
+  ret void
+}
+
+define internal void @"test.foo_fn$lambda1"(ptr %0, i32 %1) #0 {
+entry:
+  %z = alloca ptr, align 8
+  store ptr %0, ptr %z, align 8
+  %gt = icmp sgt i32 %1, 0
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %2 = load ptr, ptr %z, align 8
+  call void @test.FooTest.high(ptr %2, i32 %1)
+  ret void
+
+if.exit:                                          ; preds = %entry
+  %3 = load ptr, ptr %z, align 8
+  call void @test.FooTest.low(ptr %3, i32 %1)
+  ret void
+}
+
+define internal void @"test.foo_fn$lambda2"(ptr %0, i32 %1) #0 {
+entry:
+  %z = alloca ptr, align 8
+  store ptr %0, ptr %z, align 8
+  %gt = icmp sgt i32 %1, 0
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %2 = load ptr, ptr %z, align 8
+  call void @test.FooTest2.high(ptr %2, i32 %1)
+  ret void
+
+if.exit:                                          ; preds = %entry
+  %3 = load ptr, ptr %z, align 8
+  call void @test.FooTest2.low(ptr %3, i32 %1)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/lambda/ct_lambda2.c3t b/test/test_suite7/lambda/ct_lambda2.c3t
new file mode 100644
index 000000000..57b5df2d6
--- /dev/null
+++ b/test/test_suite7/lambda/ct_lambda2.c3t
@@ -0,0 +1,84 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+def Call = fn void();
+
+fn int main()
+{
+	var $x = 0;
+	$for (var $i = 0; $i < 10; $i++)
+	{
+		var $Type = int;
+		$if $i % 2 == 0:
+			$Type = double;
+		$endif
+		$if $i % 3 == 0:
+			$x++;
+		$endif;
+		Call x = fn () => (void)io::printfn("%d %s", $x, $Type.nameof);
+		x();
+	}
+	$endfor
+	return 0;
+}
+
+/* #expect: test.ll
+
+@.str.1 = private unnamed_addr constant [7 x i8] c"double\00", align 1
+@.str.3 = private unnamed_addr constant [4 x i8] c"int\00", align 1
+@.str.5 = private unnamed_addr constant [4 x i8] c"int\00", align 1
+@.str.7 = private unnamed_addr constant [7 x i8] c"double\00", align 1
+@.str.9 = private unnamed_addr constant [7 x i8] c"double\00", align 1
+@.str.11 = private unnamed_addr constant [4 x i8] c"int\00", align 1
+@.str.13 = private unnamed_addr constant [4 x i8] c"int\00", align 1
+
+
+define i32 @main() #0 {
+  store ptr @"test.main$lambda1", ptr %x, align 8
+  %0 = load ptr, ptr %x, align 8
+  call void %0()
+  store ptr @"test.main$lambda2", ptr %x1, align 8
+  %1 = load ptr, ptr %x1, align 8
+  call void %1()
+  store ptr @"test.main$lambda1", ptr %x2, align 8
+  %2 = load ptr, ptr %x2, align 8
+  call void %2()
+  store ptr @"test.main$lambda3", ptr %x3, align 8
+  %3 = load ptr, ptr %x3, align 8
+  call void %3()
+  store ptr @"test.main$lambda4", ptr %x4, align 8
+  %4 = load ptr, ptr %x4, align 8
+  call void %4()
+  store ptr @"test.main$lambda3", ptr %x5, align 8
+  %5 = load ptr, ptr %x5, align 8
+  call void %5()
+  store ptr @"test.main$lambda5", ptr %x6, align 8
+  %6 = load ptr, ptr %x6, align 8
+  call void %6()
+  store ptr @"test.main$lambda6", ptr %x7, align 8
+  %7 = load ptr, ptr %x7, align 8
+  call void %7()
+  store ptr @"test.main$lambda5", ptr %x8, align 8
+  %8 = load ptr, ptr %x8, align 8
+  call void %8()
+  store ptr @"test.main$lambda7", ptr %x9, align 8
+  %9 = load ptr, ptr %x9, align 8
+  call void %9()
+  ret i32 0
+}
+
+define internal void @"test.main$lambda1"() #0 {
+  store %"char[]" { ptr @.str.1, i64 6 }, ptr %taddr1, align 8
+define internal void @"test.main$lambda2"() #0 {
+  store %"char[]" { ptr @.str.3, i64 3 }, ptr %taddr1, align 8
+define internal void @"test.main$lambda3"() #0 {
+  store %"char[]" { ptr @.str.5, i64 3 }, ptr %taddr1, align 8
+define internal void @"test.main$lambda4"() #0 {
+  store %"char[]" { ptr @.str.7, i64 6 }, ptr %taddr1, align 8
+define internal void @"test.main$lambda5"() #0 {
+  store %"char[]" { ptr @.str.9, i64 6 }, ptr %taddr1, align 8
+define internal void @"test.main$lambda6"() #0 {
+  store %"char[]" { ptr @.str.11, i64 3 }, ptr %taddr1, align 8
+define internal void @"test.main$lambda7"() #0 {
+  store %"char[]" { ptr @.str.13, i64 3 }, ptr %taddr1, align 8
\ No newline at end of file
diff --git a/test/test_suite7/lambda/lambda_checks.c3 b/test/test_suite7/lambda/lambda_checks.c3
new file mode 100644
index 000000000..a441e944c
--- /dev/null
+++ b/test/test_suite7/lambda/lambda_checks.c3
@@ -0,0 +1,14 @@
+module test;
+def Func = fn void (bool);
+
+fn bool foo (String) => true;
+fn void bar(Func func) => func(false);
+
+fn void main()
+{
+	Func funcX = &foo; // #error: Implicitly casting
+	bar(&foo); // #error: Implicitly casting
+
+	Func func = fn bool (String) { return true; }; // #error: which doesn't match
+	bar(fn bool (String) { return true; }); // #error: which doesn't match
+}
\ No newline at end of file
diff --git a/test/test_suite7/lambda/lambda_in_macro.c3t b/test/test_suite7/lambda/lambda_in_macro.c3t
new file mode 100644
index 000000000..7b88e2d01
--- /dev/null
+++ b/test/test_suite7/lambda/lambda_in_macro.c3t
@@ -0,0 +1,45 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+def Callback1 = fn double(double x);
+def Callback2 = fn int(int y);
+
+macro test2(y)
+{
+	var $Type = $typeof(y);
+	return fn $Type($typeof(y) x) { return x * x; };
+}
+
+macro test($Type)
+{
+	$Type z = fn (x) { return x * x; };
+	return z;
+}
+
+fn void main()
+{
+	io::printfn("val: %d", test(Callback2)(3));
+	io::printfn("val: %s", test(Callback1)(3.3));
+	io::printfn("val: %s", test(Callback1)(3.3));
+	io::printfn("val: %d", test2(1)(3));
+	io::printfn("val: %d", test2(1)(3));
+	io::printfn("val: %s", test2(1.0)(3.3));
+}
+
+/* #expect: test.ll
+
+  store ptr @"test.test$lambda1", ptr %z, align 8
+  %1 = call i32 %0(i32 3)
+  store ptr @"test.test$lambda2", ptr %z2, align 8
+  %6 = call double %5(double 3.300000e+00)
+  store ptr @"test.test$lambda2", ptr %z6, align 8
+  %11 = call double %10(double 3.300000e+00)
+  %15 = call i32 @"test.test2$lambda3"(i32 3)
+ %19 = call i32 @"test.test2$lambda3"(i32 3)
+   %23 = call double @"test.test2$lambda4"(double 3.300000e+00)
+
+define internal i32 @"test.test$lambda1"(i32 %0) #0 {
+define internal double @"test.test$lambda2"(double %0) #0 {
+define internal i32 @"test.test2$lambda3"(i32 %0) #0 {
+define internal double @"test.test2$lambda4"(double %0) #0 {
diff --git a/test/test_suite7/lambda/lambda_ref.c3t b/test/test_suite7/lambda/lambda_ref.c3t
new file mode 100644
index 000000000..8c3bd5459
--- /dev/null
+++ b/test/test_suite7/lambda/lambda_ref.c3t
@@ -0,0 +1,35 @@
+// #target: macos-x64
+module test;
+
+def FnA = fn void(int*);
+
+fn void func(int*) {  }
+fn void main()
+{
+    FnA* a = && &func;
+    a = &&(fn void(int*) {  });
+}
+
+/* #expect: test.ll
+
+define void @test.func(ptr %0) #0 {
+entry:
+  ret void
+}
+
+define void @test.main() #0 {
+entry:
+  %a = alloca ptr, align 8
+  %taddr = alloca ptr, align 8
+  %taddr1 = alloca ptr, align 8
+  store ptr @test.func, ptr %taddr, align 8
+  store ptr %taddr, ptr %a, align 8
+  store ptr @"test.main$lambda1", ptr %taddr1, align 8
+  store ptr %taddr1, ptr %a, align 8
+  ret void
+}
+
+define internal void @"test.main$lambda1"(ptr %0) #0 {
+entry:
+  ret void
+}
diff --git a/test/test_suite7/lambda/nested_lambda_def.c3t b/test/test_suite7/lambda/nested_lambda_def.c3t
new file mode 100644
index 000000000..7cf23fada
--- /dev/null
+++ b/test/test_suite7/lambda/nested_lambda_def.c3t
@@ -0,0 +1,78 @@
+// #target: macos-x64
+module abc;
+import bar;
+import std::io;
+
+fn int xy(Callback a) => a();
+
+fn void main()
+{
+	const Callback F = bar::get_callback();
+	int z = xy(F);
+	z = xy(F);
+	io::printfn("val: %d", z);
+}
+
+module foo;
+import bar;
+import std::io;
+
+int xz @private = 0;
+
+
+macro Callback get_callback()
+{
+	return fn int() { return bar::get_callback2()(); };
+}
+
+macro Callback get_callback2()
+{
+	return fn int() { io::printfn("Hello"); return ++xz; };
+}
+
+module bar;
+import foo;
+def Callback = fn int();
+
+macro Callback get_callback()
+{
+	return fn int() { return foo::get_callback()(); };
+}
+
+macro Callback get_callback2()
+{
+	return fn int() { return foo::get_callback2()(); };
+}
+
+/* #expect: abc.ll
+
+@main.F = internal unnamed_addr constant ptr @"bar.get_callback$lambda1", align 8
+  %0 = call i32 @abc.xy(ptr @"bar.get_callback$lambda1")
+  %1 = call i32 @abc.xy(ptr @"bar.get_callback$lambda1")
+declare i32 @"bar.get_callback$lambda1"()
+
+// #expect: foo.ll
+
+define i32 @"foo.get_callback2$lambda2"() #0 {
+  %1 = load i32, ptr @foo.xz, align 4
+
+define i32 @"foo.get_callback$lambda1"() #0 {
+  %0 = call i32 @"bar.get_callback2$lambda2"()
+
+declare i32 @"bar.get_callback2$lambda2"()
+
+// #expect: bar.ll
+
+define i32 @"bar.get_callback2$lambda2"() #0 {
+entry:
+  %0 = call i32 @"foo.get_callback2$lambda2"()
+  ret i32 %0
+}
+define i32 @"bar.get_callback$lambda1"() #0 {
+entry:
+  %0 = call i32 @"foo.get_callback$lambda1"()
+  ret i32 %0
+
+declare i32 @"foo.get_callback2$lambda2"() #0
+declare i32 @"foo.get_callback$lambda1"() #0
+
diff --git a/test/test_suite7/lambda/simple_lambda.c3t b/test/test_suite7/lambda/simple_lambda.c3t
new file mode 100644
index 000000000..226bbbd2b
--- /dev/null
+++ b/test/test_suite7/lambda/simple_lambda.c3t
@@ -0,0 +1,33 @@
+// #target: macos-x64
+import std::io;
+import std::math::vector;
+import std::math;
+
+def Callback = fn int();
+
+fn int xy(Callback a) => a();
+
+fn void main()
+{
+	const Callback F = fn int() { io::printfn("Hello"); return 23; };
+	int z = xy(F);
+	io::printfn("%d", z);
+	int y = xy(fn () { return 3; });
+}
+
+/* #expect: simple_lambda.ll
+
+@main.F = internal unnamed_addr constant ptr @"simple_lambda.main$lambda1", align 8
+
+define void @simple_lambda.main() #0 {
+entry:
+  %z = alloca i32, align 4
+  %0 = call i32 @simple_lambda.xy(ptr @"simple_lambda.main$lambda1")
+  %4 = call i32 @simple_lambda.xy(ptr @"simple_lambda.main$lambda2")
+
+define internal i32 @"simple_lambda.main$lambda1"() #0 {
+
+define internal i32 @"simple_lambda.main$lambda2"() #0 {
+entry:
+  ret i32 3
+}
diff --git a/test/test_suite7/lambda/var_lambda.c3 b/test/test_suite7/lambda/var_lambda.c3
new file mode 100644
index 000000000..44d0530a5
--- /dev/null
+++ b/test/test_suite7/lambda/var_lambda.c3
@@ -0,0 +1,8 @@
+module test;
+import std;
+fn void main()
+{
+	var x = fn int(int y) { return y * 2; };
+	io::printn(x(4));
+	io::printn(x(3));
+}
\ No newline at end of file
diff --git a/test/test_suite7/lexing/expected_directive.c3 b/test/test_suite7/lexing/expected_directive.c3
new file mode 100644
index 000000000..46ef6465d
--- /dev/null
+++ b/test/test_suite7/lexing/expected_directive.c3
@@ -0,0 +1,4 @@
+<*
+@hello
+@param feij > 0 // #error: A string containing the description
+*>
diff --git a/test/test_suite7/lexing/invalid_hex_in_hexarray.c3 b/test/test_suite7/lexing/invalid_hex_in_hexarray.c3
new file mode 100644
index 000000000..536515a37
--- /dev/null
+++ b/test/test_suite7/lexing/invalid_hex_in_hexarray.c3
@@ -0,0 +1 @@
+x"abcé" // #error: This isn't a valid hexadecimal digit
\ No newline at end of file
diff --git a/test/test_suite7/lexing/invalid_hex_in_hexarray2.c3 b/test/test_suite7/lexing/invalid_hex_in_hexarray2.c3
new file mode 100644
index 000000000..eb571c8b2
--- /dev/null
+++ b/test/test_suite7/lexing/invalid_hex_in_hexarray2.c3
@@ -0,0 +1 @@
+x"abcg" // #error: 'g' isn't a valid hexadecimal digit
\ No newline at end of file
diff --git a/test/test_suite7/lexing/no_builtin.c3 b/test/test_suite7/lexing/no_builtin.c3
new file mode 100644
index 000000000..09ff7d6d9
--- /dev/null
+++ b/test/test_suite7/lexing/no_builtin.c3
@@ -0,0 +1,2 @@
+
+$$1 // #error: Expected a letter after
\ No newline at end of file
diff --git a/test/test_suite7/literals/bad_bitwidth.c3 b/test/test_suite7/literals/bad_bitwidth.c3
new file mode 100644
index 000000000..e5cf75f34
--- /dev/null
+++ b/test/test_suite7/literals/bad_bitwidth.c3
@@ -0,0 +1,4 @@
+int i = 4i15; // #error: Integer type suffix should be i8, i16, i32, i64 or i128
+int j = 4i1024; // #error: Integer type suffix should be i8, i16, i32, i64 or i128
+int k = 4i65536; // #error: Integer type suffix should be i8, i16, i32, i64 or i128
+int l = 4i016; // #error: Integer type suffix should be i8, i16, i32, i64 or i128
\ No newline at end of file
diff --git a/test/test_suite7/literals/bin_literal.c3t b/test/test_suite7/literals/bin_literal.c3t
new file mode 100644
index 000000000..ba0f1ea0b
--- /dev/null
+++ b/test/test_suite7/literals/bin_literal.c3t
@@ -0,0 +1,77 @@
+// #target: macos-x64
+module test;
+import std::io;
+import std::bits;
+fn void main()
+{
+	int a = 123;
+	int b = -23;
+	int c = $$min(a, b);
+	int d = $$max(a, b);
+	io::printfn("%d %d", c, d);
+	char z = 0b1101_1101;
+	io::printfn("%b %b %b", z, z.rotr(1), z.rotl(1));
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %c = alloca i32, align 4
+  %d = alloca i32, align 4
+  %varargslots = alloca [2 x %any], align 16
+  %retparam = alloca i64, align 8
+  %z = alloca i8, align 1
+  %varargslots1 = alloca [3 x %any], align 16
+  %self = alloca i8, align 1
+  %taddr = alloca i8, align 1
+  %self3 = alloca i8, align 1
+  %taddr4 = alloca i8, align 1
+  %retparam6 = alloca i64, align 8
+  store i32 123, ptr %a, align 4
+  store i32 -23, ptr %b, align 4
+  %0 = load i32, ptr %a, align 4
+  %1 = load i32, ptr %b, align 4
+  %2 = call i32 @llvm.smin.i32(i32 %0, i32 %1)
+  store i32 %2, ptr %c, align 4
+  %3 = load i32, ptr %a, align 4
+  %4 = load i32, ptr %b, align 4
+  %5 = call i32 @llvm.smax.i32(i32 %3, i32 %4)
+  store i32 %5, ptr %d, align 4
+  %6 = insertvalue %any undef, ptr %c, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %7, ptr %varargslots, align 16
+  %8 = insertvalue %any undef, ptr %d, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %9, ptr %ptradd, align 16
+  %10 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 5, ptr %varargslots, i64 2)
+  store i8 -35, ptr %z, align 1
+  %11 = insertvalue %any undef, ptr %z, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  store %any %12, ptr %varargslots1, align 16
+  %13 = load i8, ptr %z, align 1
+  store i8 %13, ptr %self, align 1
+  %14 = load i8, ptr %self, align 1
+  %15 = load i8, ptr %self, align 1
+  %16 = call i8 @llvm.fshr.i8(i8 %14, i8 %15, i8 1)
+  store i8 %16, ptr %taddr, align 1
+  %17 = insertvalue %any undef, ptr %taddr, 0
+  %18 = insertvalue %any %17, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  %ptradd2 = getelementptr inbounds i8, ptr %varargslots1, i64 16
+  store %any %18, ptr %ptradd2, align 16
+  %19 = load i8, ptr %z, align 1
+  store i8 %19, ptr %self3, align 1
+  %20 = load i8, ptr %self3, align 1
+  %21 = load i8, ptr %self3, align 1
+  %22 = call i8 @llvm.fshl.i8(i8 %20, i8 %21, i8 1)
+  store i8 %22, ptr %taddr4, align 1
+  %23 = insertvalue %any undef, ptr %taddr4, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.char" to i64), 1
+  %ptradd5 = getelementptr inbounds i8, ptr %varargslots1, i64 32
+  store %any %24, ptr %ptradd5, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam6, ptr @.str.1, i64 8, ptr %varargslots1, i64 3)
+  ret void
+}
diff --git a/test/test_suite7/literals/bin_literal2.c3t b/test/test_suite7/literals/bin_literal2.c3t
new file mode 100644
index 000000000..bafeeb6bb
--- /dev/null
+++ b/test/test_suite7/literals/bin_literal2.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module test;
+
+const char C = 0b1000_0000;
+const ichar IC = 0b0100_0000;
+
+const ushort US = 0b1000_0000_0000_0000;
+const short S = 0b0100_0000_0000_0000;
+
+const uint UI = 0b1000_0000_0000_0000_0000_0000_0000_0000;
+const int I = 0b0100_0000_0000_0000_0000_0000_0000_0000;
+
+const ulong UL = 0b1000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000;
+const long L = 0b0100_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000;
+
+const uint128 UI128 = 0b1000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000;
+const int128 I128 = 0b0100_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000_0000;
+
+/* #expect: test.ll
+
+@test.C = local_unnamed_addr constant i8 -128, align 1
+@test.IC = local_unnamed_addr constant i8 64, align 1
+@test.US = local_unnamed_addr constant i16 -32768, align 2
+@test.S = local_unnamed_addr constant i16 16384, align 2
+@test.UI = local_unnamed_addr constant i32 -2147483648, align 4
+@test.I = local_unnamed_addr constant i32 1073741824, align 4
+@test.UL = local_unnamed_addr constant i64 -9223372036854775808, align 8
+@test.L = local_unnamed_addr constant i64 4611686018427387904, align 8
+@test.UI128 = local_unnamed_addr constant i128 -170141183460469231731687303715884105728,
+@test.I128 = local_unnamed_addr constant i128 85070591730234615865843651857942052864,
\ No newline at end of file
diff --git a/test/test_suite7/literals/literal_general.c3t b/test/test_suite7/literals/literal_general.c3t
new file mode 100644
index 000000000..377c6096e
--- /dev/null
+++ b/test/test_suite7/literals/literal_general.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+module foo;
+
+int aa = 'ä';
+int x = 'ABCD';
+uint y = 'Helo';
+ushort z = '\x31\x32';
+int d = '\u0031';
+char b = '\x40';
+uint abc = '\U133222AB';
+uint foo = '謝';
+
+/* #expect: foo.ll
+
+@foo.aa = local_unnamed_addr global i32 228, align 4
+@foo.x = local_unnamed_addr global i32 1094861636, align 4
+@foo.y = local_unnamed_addr global i32 1214606447, align 4
+@foo.z = local_unnamed_addr global i16 12594, align 2
+@foo.d = local_unnamed_addr global i32 49, align 4
+@foo.b = local_unnamed_addr global i8 64, align 1
+@foo.abc = local_unnamed_addr global i32 322052779, align 4
+@foo.foo = local_unnamed_addr global i32 35613, align 4
diff --git a/test/test_suite7/literals/multi_unicode.c3 b/test/test_suite7/literals/multi_unicode.c3
new file mode 100644
index 000000000..4d328167c
--- /dev/null
+++ b/test/test_suite7/literals/multi_unicode.c3
@@ -0,0 +1 @@
+int d = '\u0031\u0032\u0033\u0034'; // #error: can only contain one character
\ No newline at end of file
diff --git a/test/test_suite7/literals/radix_numbers_errors.c3 b/test/test_suite7/literals/radix_numbers_errors.c3
new file mode 100644
index 000000000..a37970238
--- /dev/null
+++ b/test/test_suite7/literals/radix_numbers_errors.c3
@@ -0,0 +1,17 @@
+0o8 // #error: An expression starting with '0o' should be followed by octal numbers (0-7).
+
+0o% // #error: An expression starting with '0o' should be followed by octal numbers (0-7).
+
+0o08 // #error: An expression starting with '0o' should be followed by octal numbers (0-7).
+
+0b2 // #error: An expression starting with '0b' should be followed by binary digits
+
+0b# // #error: An expression starting with '0b' should be followed by binary digits
+
+0b12 // #error: An expression starting with '0b' should be followed by binary digits
+
+0xg // #error: '0x' starts a hexadecimal number, so the next character should be 0-9, a-f or A-F.
+
+0x! // #error: '0x' starts a hexadecimal number, so the next character should be 0-9, a-f or A-F.
+
+0b // #error: An expression starting with '0b' should be followed by binary digits
diff --git a/test/test_suite7/literals/too_small.c3 b/test/test_suite7/literals/too_small.c3
new file mode 100644
index 000000000..129389d4d
--- /dev/null
+++ b/test/test_suite7/literals/too_small.c3
@@ -0,0 +1,2 @@
+char aa = 'ä';
+short hmm = '謝'; // #error: unicode character
\ No newline at end of file
diff --git a/test/test_suite7/macro_methods/access.c3 b/test/test_suite7/macro_methods/access.c3
new file mode 100644
index 000000000..91a5fc184
--- /dev/null
+++ b/test/test_suite7/macro_methods/access.c3
@@ -0,0 +1,35 @@
+struct An1
+{
+    An3 x;
+}
+
+struct An3
+{
+    An2 y;
+}
+
+struct An2
+{
+    int z;
+}
+
+extern fn void printf(char *string);
+
+macro void An2.@helloWorld(An2* &an2)
+{
+    printf("An2 hello\n");
+}
+
+fn void check()
+{
+    printf("Checking\n");
+}
+
+
+fn void main()
+{
+    An1 an;
+    an.x.y.@helloWorld();
+    An2 a;
+    a.@helloWorld();
+}
\ No newline at end of file
diff --git a/test/test_suite7/macro_methods/macro_method_different_args.c3t b/test/test_suite7/macro_methods/macro_method_different_args.c3t
new file mode 100644
index 000000000..d4277fb1c
--- /dev/null
+++ b/test/test_suite7/macro_methods/macro_method_different_args.c3t
@@ -0,0 +1,49 @@
+// #target: macos-x64
+module foo;
+
+extern fn void printf(char* fmt, ...);
+struct Foo
+{
+	int x;
+}
+
+macro void Foo.@hello(Foo* &this) { this.x = 3; printf("-%d\n", this.x); }
+macro void Foo.hello(Foo* this) { this.x = 4; printf("-%d\n", this.x); }
+macro void Foo.hello2(Foo this) { this.x = 5; printf("-%d\n", this.x); }
+
+fn void main()
+{
+	Foo a;
+	a.@hello();
+	printf("%d\n", a.x);
+	a.hello();
+	printf("%d\n", a.x);
+	a.hello2();
+	printf("%d\n", a.x);
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %a = alloca %Foo, align 4
+  %this = alloca %Foo, align 4
+  store i32 0, ptr %a, align 4
+  store i32 3, ptr %a, align 4
+  %0 = load i32, ptr %a, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %0)
+  %1 = load i32, ptr %a, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %1)
+  store i32 4, ptr %a, align 4
+  %2 = load i32, ptr %a, align 4
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %2)
+  %3 = load i32, ptr %a, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %3)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %this, ptr align 4 %a, i32 4, i1 false)
+  store i32 5, ptr %this, align 4
+  %4 = load i32, ptr %this, align 4
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %4)
+  %5 = load i32, ptr %a, align 4
+  call void (ptr, ...) @printf(ptr @.str.5, i32 %5)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/macro_methods/macro_method_fails.c3 b/test/test_suite7/macro_methods/macro_method_fails.c3
new file mode 100644
index 000000000..367e7fa5a
--- /dev/null
+++ b/test/test_suite7/macro_methods/macro_method_fails.c3
@@ -0,0 +1,46 @@
+struct An1
+{
+    An3 x;
+}
+
+struct An3
+{
+    An2 y;
+}
+
+struct An2
+{
+    int y;
+}
+
+extern fn void printf(char* string);
+
+macro void An2.@helloWorld(An2* &an2)
+{
+    printf("An2 hello\n");
+}
+
+fn void check()
+{
+    printf("Checking\n");
+}
+
+
+fn void test1()
+{
+    An1 an;
+    an.x.y.@helloWorld; // #error:  macro name must be followed by '('
+}
+
+fn void test2()
+{
+    An2 a;
+    a.@helloWorld; // #error: A macro name must be followed by '('
+}
+
+fn void test3()
+{
+    An2 a;
+    a.@helloWorld.b; // #error: There is no member or method 'b' on 'void'
+}
+
diff --git a/test/test_suite7/macro_methods/macro_method_first_param.c3 b/test/test_suite7/macro_methods/macro_method_first_param.c3
new file mode 100644
index 000000000..58267b9a5
--- /dev/null
+++ b/test/test_suite7/macro_methods/macro_method_first_param.c3
@@ -0,0 +1,4 @@
+
+struct Foo { int y; }
+
+macro Foo.text(...) => f.y; // #error: The first parameter to this method must
\ No newline at end of file
diff --git a/test/test_suite7/macro_methods/macro_methods_defined_twice.c3 b/test/test_suite7/macro_methods/macro_methods_defined_twice.c3
new file mode 100644
index 000000000..01f70ed04
--- /dev/null
+++ b/test/test_suite7/macro_methods/macro_methods_defined_twice.c3
@@ -0,0 +1,32 @@
+module foo;
+
+struct Bar
+{
+    int x;
+}
+
+module baz;
+import foo;
+import std::io;
+
+macro void foo::Bar.@test(Bar* &bar)
+{
+    io::printn("Inside of baz::Bar.test");
+}
+
+module bad;
+import foo;
+macro void Bar.@test(Bar* &bar) // #error: This macro method is already defined for 'Bar'.
+{
+    io::printn("Inside of baz::Bar.test");
+}
+
+module abc;
+import foo;
+
+fn void main()
+{
+    Bar bar;
+    bar.@test();
+}
+
diff --git a/test/test_suite7/macro_methods/macro_methods_no_args.c3 b/test/test_suite7/macro_methods/macro_methods_no_args.c3
new file mode 100644
index 000000000..c7d235144
--- /dev/null
+++ b/test/test_suite7/macro_methods/macro_methods_no_args.c3
@@ -0,0 +1,17 @@
+import std::io;
+// Issue #1990
+struct Foo
+{
+	uint field;
+}
+
+macro Foo.bar() // #error: A method must start with an argument
+{
+	io.printn("UwU");
+}
+
+fn void main()
+{
+	Foo foo = {};
+	foo.bar();
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/hash_ident.c3 b/test/test_suite7/macros/hash_ident.c3
new file mode 100644
index 000000000..e16659d87
--- /dev/null
+++ b/test/test_suite7/macros/hash_ident.c3
@@ -0,0 +1,25 @@
+macro int @cofefe(#a)
+{
+    int y = 0;
+    return #a + #a;
+}
+
+int abc @private = 1;
+
+fn int xx()
+{
+    abc++;
+    return abc;
+}
+
+fn void main()
+{
+    var $x = 0;
+    int x = 0;
+    @cofefe(x += 1);
+    @cofefe(xx());
+    $typeof($x += 1) xx;
+    $assert $x == 1;
+    @cofefe(y += 1); // #error: 'y' could not be found
+}
+
diff --git a/test/test_suite7/macros/hash_ident_nested.c3t b/test/test_suite7/macros/hash_ident_nested.c3t
new file mode 100644
index 000000000..8404a6d65
--- /dev/null
+++ b/test/test_suite7/macros/hash_ident_nested.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+module test;
+fn void main()
+{
+    @foo(x);
+}
+
+struct Point { float x; float y; }
+
+macro @foo(#x)
+{
+    @bar(#x);
+}
+
+macro @bar(#x)
+{
+    Point pt;
+    var z = pt.#x;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %pt = alloca %Point, align 4
+  %z = alloca float, align 4
+  store float 0.000000e+00, ptr %pt, align 4
+  %ptradd = getelementptr inbounds i8, ptr %pt, i64 4
+  store float 0.000000e+00, ptr %ptradd, align 4
+  %0 = load float, ptr %pt, align 4
+  store float %0, ptr %z, align 4
+  ret void
+}
+
diff --git a/test/test_suite7/macros/hash_initializer.c3t b/test/test_suite7/macros/hash_initializer.c3t
new file mode 100644
index 000000000..a508a3633
--- /dev/null
+++ b/test/test_suite7/macros/hash_initializer.c3t
@@ -0,0 +1,23 @@
+module test;
+
+macro int[2] test(#abc) @safemacro
+{
+	return #abc;
+}
+
+fn void main()
+{
+	int[2] x = (int[2]) { 1, 2 };
+	int[2] y = test({ 2, 3 });
+	int[2] z = test({ [0] = 1 });
+}
+
+/* #expect: test.ll
+
+@.__const = private unnamed_addr constant [2 x i32] [i32 1, i32 2], align 4
+@.__const.1 = private unnamed_addr constant [2 x i32] [i32 2, i32 3], align 4
+@.__const.2 = private unnamed_addr constant [2 x i32] [i32 1, i32 0], align 4
+
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const.1, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %z, ptr align 4 @.__const.2, i32 8, i1 false)
diff --git a/test/test_suite7/macros/implicit_return_opt.c3 b/test/test_suite7/macros/implicit_return_opt.c3
new file mode 100644
index 000000000..91c5cb20e
--- /dev/null
+++ b/test/test_suite7/macros/implicit_return_opt.c3
@@ -0,0 +1,19 @@
+module test;
+import std::io;
+
+fn void main()
+{
+	int x = run()!!; // #error: You cannot cast
+	io::printfn("x=%d", x);
+}
+
+macro run()
+{
+	int i;
+	while (true)
+	{
+		i++;
+		if (i > 10) break;
+		if (i > 100) return IoError.EOF?;
+	}
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_always_const.c3 b/test/test_suite7/macros/macro_always_const.c3
new file mode 100644
index 000000000..72a31f5df
--- /dev/null
+++ b/test/test_suite7/macros/macro_always_const.c3
@@ -0,0 +1,9 @@
+macro bar() @const
+{
+	return; // #error: provide a value
+}
+
+macro void barz() @const // #error: return a constant
+{
+	return 1;
+}
diff --git a/test/test_suite7/macros/macro_body_as_value.c3 b/test/test_suite7/macros/macro_body_as_value.c3
new file mode 100644
index 000000000..b8df768a4
--- /dev/null
+++ b/test/test_suite7/macros/macro_body_as_value.c3
@@ -0,0 +1,12 @@
+macro @foo4(;@body)
+{
+    @body; // #error: must be followed by ()
+}
+
+fn void test()
+{
+    @foo4()
+    {
+      int x = 0;
+    };
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_body_defer.c3t b/test/test_suite7/macros/macro_body_defer.c3t
new file mode 100644
index 000000000..a3fae041b
--- /dev/null
+++ b/test/test_suite7/macros/macro_body_defer.c3t
@@ -0,0 +1,87 @@
+// #target: macos-x64
+module foo;
+extern fn void printf(char*,...);
+
+fn int! foo() { return 1; }
+
+macro @foo_test(int i; @body())
+{
+	defer printf("%d\n", i);
+	@body();
+	defer printf("2:%d\n", i);
+}
+
+macro foo_defer()
+{
+	defer printf("A\n");
+	printf("B\n");
+	defer printf("C\n");
+}
+fn void main()
+{
+    foo_defer();
+	@foo_test(34) {
+		defer printf("inside_defer\n");
+	};
+	while (1)
+	{
+		defer printf("outside\n");
+		@foo_test(3)
+		{
+			defer printf("Inside will it jump?\n");
+			printf("3-test\n");
+			break;
+		};
+	}
+	while (1)
+	{
+		defer printf("outside2\n");
+		printf("--\n");
+		@foo_test(3)
+		{
+			defer printf("Inside will it jump?\n");
+			printf("--3\n");
+			return;
+		};
+	}
+}
+
+/* #expect: foo.ll
+
+define i64 @foo.foo(ptr %0) #0 {
+entry:
+  %reterr = alloca i64, align 8
+  store i32 1, ptr %0, align 4
+  ret i64 0
+}
+define void @foo.main() #0 {
+entry:
+  call void (ptr, ...) @printf(ptr @.str)
+  call void (ptr, ...) @printf(ptr @.str.1)
+  call void (ptr, ...) @printf(ptr @.str.2)
+  call void (ptr, ...) @printf(ptr @.str.3)
+  call void (ptr, ...) @printf(ptr @.str.4, i32 34)
+  call void (ptr, ...) @printf(ptr @.str.5, i32 34)
+  br label %loop.body
+loop.body:                                        ; preds = %entry
+  call void (ptr, ...) @printf(ptr @.str.6)
+  call void (ptr, ...) @printf(ptr @.str.7)
+  call void (ptr, ...) @printf(ptr @.str.8, i32 3)
+  call void (ptr, ...) @printf(ptr @.str.9)
+  br label %loop.exit
+loop.exit:                                        ; preds = %loop.body
+  br label %loop.body1
+loop.body1:                                       ; preds = %loop.exit
+  call void (ptr, ...) @printf(ptr @.str.10)
+  call void (ptr, ...) @printf(ptr @.str.11)
+  call void (ptr, ...) @printf(ptr @.str.12)
+  call void (ptr, ...) @printf(ptr @.str.13, i32 3)
+  call void (ptr, ...) @printf(ptr @.str.14)
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @foo.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/macros/macro_body_errors.c3 b/test/test_suite7/macros/macro_body_errors.c3
new file mode 100644
index 000000000..de4de1fa2
--- /dev/null
+++ b/test/test_suite7/macros/macro_body_errors.c3
@@ -0,0 +1,7 @@
+
+macro foo1(;) { } // #error: Expected an ending ')' or a block parameter on the
+
+macro foo2(;@body()) {}
+
+macro foo3(;@body) {}
+
diff --git a/test/test_suite7/macros/macro_body_missing_type.c3 b/test/test_suite7/macros/macro_body_missing_type.c3
new file mode 100644
index 000000000..570345205
--- /dev/null
+++ b/test/test_suite7/macros/macro_body_missing_type.c3
@@ -0,0 +1,17 @@
+enum Foo
+{
+  A,
+}
+
+fn void main()
+{
+  @test(;$f) // #error: should be explicitly
+  {
+
+  };
+}
+
+macro @test(; @body(Foo $f))
+{
+  @body(A);
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_body_ref_hash_constant_type.c3t b/test/test_suite7/macros/macro_body_ref_hash_constant_type.c3t
new file mode 100644
index 000000000..37d722654
--- /dev/null
+++ b/test/test_suite7/macros/macro_body_ref_hash_constant_type.c3t
@@ -0,0 +1,167 @@
+// #target: macos-x64
+// #deprecation: no
+module test;
+import std::io;
+
+fn void main()
+{
+	@boba(;#hash_val, #foo, int $value, $Type)
+	{
+		io::printn("Now invoking hash");
+		#hash_val;
+		#hash_val;
+		#foo += $value;
+		io::printfn("The type was: %s", $Type.nameof);
+	};
+}
+
+macro void @boba(;@body(#hash, #foo, $val, $Type))
+{
+	io::printn("Boba");
+	int a = 0;
+	int b = 0;
+	@body({| io::printfn("Send %d", a); a++; |}, b, 3, int);
+	io::printfn("%d", b);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %len14 = alloca i64, align 8
+  %error_var15 = alloca i64, align 8
+  %retparam17 = alloca i64, align 8
+  %error_var23 = alloca i64, align 8
+  %error_var29 = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam37 = alloca i64, align 8
+  %varargslots41 = alloca [1 x %any], align 16
+  %retparam42 = alloca i64, align 8
+  %varargslots47 = alloca [1 x %any], align 16
+  %taddr = alloca %"char[]", align 8
+  %retparam48 = alloca i64, align 8
+  %varargslots51 = alloca [1 x %any], align 16
+  %retparam52 = alloca i64, align 8
+  %0 = call ptr @std.io.stdout()
+  %1 = call i64 @std.io.File.write(ptr %retparam, ptr %0, ptr @.str, i64 4)
+  %not_err = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %1, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %3 = load i64, ptr %retparam, align 8
+  store i64 %3, ptr %len, align 8
+  %4 = call i64 @std.io.File.write_byte(ptr %0, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %5, label %after_check5, label %assign_optional4
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %4, ptr %error_var2, align 8
+  br label %guard_block6
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+noerr_block7:                                     ; preds = %after_check5
+  %6 = call i64 @std.io.File.flush(ptr %0)
+  %not_err9 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %7, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %6, ptr %error_var8, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+noerr_block13:                                    ; preds = %after_check11
+  %8 = load i64, ptr %len, align 8
+  %add = add i64 %8, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  store i32 0, ptr %a, align 4
+  store i32 0, ptr %b, align 4
+  %9 = call ptr @std.io.stdout()
+  %10 = call i64 @std.io.File.write(ptr %retparam17, ptr %9, ptr @.str.1, i64 17)
+  %not_err18 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err18, i1 true)
+  br i1 %11, label %after_check20, label %assign_optional19
+assign_optional19:                                ; preds = %voiderr
+  store i64 %10, ptr %error_var15, align 8
+  br label %guard_block21
+after_check20:                                    ; preds = %voiderr
+  br label %noerr_block22
+guard_block21:                                    ; preds = %assign_optional19
+  br label %voiderr36
+noerr_block22:                                    ; preds = %after_check20
+  %12 = load i64, ptr %retparam17, align 8
+  store i64 %12, ptr %len14, align 8
+  %13 = call i64 @std.io.File.write_byte(ptr %9, i8 zeroext 10)
+  %not_err24 = icmp eq i64 %13, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %14, label %after_check26, label %assign_optional25
+assign_optional25:                                ; preds = %noerr_block22
+  store i64 %13, ptr %error_var23, align 8
+  br label %guard_block27
+after_check26:                                    ; preds = %noerr_block22
+  br label %noerr_block28
+guard_block27:                                    ; preds = %assign_optional25
+  br label %voiderr36
+noerr_block28:                                    ; preds = %after_check26
+  %15 = call i64 @std.io.File.flush(ptr %9)
+  %not_err30 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err30, i1 true)
+  br i1 %16, label %after_check32, label %assign_optional31
+assign_optional31:                                ; preds = %noerr_block28
+  store i64 %15, ptr %error_var29, align 8
+  br label %guard_block33
+after_check32:                                    ; preds = %noerr_block28
+  br label %noerr_block34
+guard_block33:                                    ; preds = %assign_optional31
+  br label %voiderr36
+noerr_block34:                                    ; preds = %after_check32
+  %17 = load i64, ptr %len14, align 8
+  %add35 = add i64 %17, 1
+  br label %voiderr36
+voiderr36:                                        ; preds = %noerr_block34, %guard_block33, %guard_block27, %guard_block21
+  %18 = insertvalue %any undef, ptr %a, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %19, ptr %varargslots, align 16
+  %20 = call i64 @std.io.printfn(ptr %retparam37, ptr @.str.2, i64 7, ptr %varargslots, i64 1)
+  %21 = load i32, ptr %a, align 4
+  %add40 = add i32 %21, 1
+  store i32 %add40, ptr %a, align 4
+  %22 = insertvalue %any undef, ptr %a, 0
+  %23 = insertvalue %any %22, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %23, ptr %varargslots41, align 16
+  %24 = call i64 @std.io.printfn(ptr %retparam42, ptr @.str.3, i64 7, ptr %varargslots41, i64 1)
+  %25 = load i32, ptr %a, align 4
+  %add45 = add i32 %25, 1
+  store i32 %add45, ptr %a, align 4
+  %26 = load i32, ptr %b, align 4
+  %add46 = add i32 %26, 3
+  store i32 %add46, ptr %b, align 4
+  store %"char[]" { ptr @.str.5, i64 3 }, ptr %taddr, align 8
+  %27 = insertvalue %any undef, ptr %taddr, 0
+  %28 = insertvalue %any %27, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %28, ptr %varargslots47, align 16
+  %29 = call i64 @std.io.printfn(ptr %retparam48, ptr @.str.4, i64 16, ptr %varargslots47, i64 1)
+  %30 = insertvalue %any undef, ptr %b, 0
+  %31 = insertvalue %any %30, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %31, ptr %varargslots51, align 16
+  %32 = call i64 @std.io.printfn(ptr %retparam52, ptr @.str.6, i64 2, ptr %varargslots51, i64 1)
+  ret void
+}
diff --git a/test/test_suite7/macros/macro_calls_prefix.c3 b/test/test_suite7/macros/macro_calls_prefix.c3
new file mode 100644
index 000000000..5723da636
--- /dev/null
+++ b/test/test_suite7/macros/macro_calls_prefix.c3
@@ -0,0 +1,8 @@
+macro foo(a, $b, $Type) {}
+
+macro @foo2(a, $b, $Type) {}
+
+macro baz(#y) {} // #error: are not allowed in function-like
+
+macro baz2(a; @body()) {} // #error: Names of macros
+
diff --git a/test/test_suite7/macros/macro_chained_return_void_optional.c3t b/test/test_suite7/macros/macro_chained_return_void_optional.c3t
new file mode 100644
index 000000000..b8724062d
--- /dev/null
+++ b/test/test_suite7/macros/macro_chained_return_void_optional.c3t
@@ -0,0 +1,9 @@
+module abi;
+
+fn void! abc() {}
+macro void! abc_macro() => abc();
+
+fn void main()
+{
+	(void)abc_macro();
+}
diff --git a/test/test_suite7/macros/macro_common.c3t b/test/test_suite7/macros/macro_common.c3t
new file mode 100644
index 000000000..ea3a756d2
--- /dev/null
+++ b/test/test_suite7/macros/macro_common.c3t
@@ -0,0 +1,31 @@
+module test;
+
+macro frab(x)
+{
+    if (!x) return 0;
+    return 0.0;
+}
+
+fn void test2()
+{
+    frab(1);
+    frab(0);
+}
+
+/* #expect: test.ll
+
+define void @test.test2() #0 {
+entry:
+  %blockret = alloca double, align 8
+  br label %if.exit
+
+if.exit:                                          ; preds = %entry
+  br label %if.then
+
+if.then:                                          ; preds = %if.exit
+  store double 0.000000e+00, ptr %blockret, align 8
+  br label %expr_block.exit
+
+expr_block.exit:                                  ; preds = %if.then
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_convert_literal.c3 b/test/test_suite7/macros/macro_convert_literal.c3
new file mode 100644
index 000000000..25d7900c6
--- /dev/null
+++ b/test/test_suite7/macros/macro_convert_literal.c3
@@ -0,0 +1,12 @@
+module foo;
+import libc;
+
+macro foo(y)
+{
+    return y * y;
+}
+
+fn void main()
+{
+    libc::printf("%d\n", foo(10));
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_defer_exit.c3t b/test/test_suite7/macros/macro_defer_exit.c3t
new file mode 100644
index 000000000..e52bdd5bb
--- /dev/null
+++ b/test/test_suite7/macros/macro_defer_exit.c3t
@@ -0,0 +1,77 @@
+// #target: macos-x64
+module foo;
+extern fn void printf(char*,...);
+
+macro int abc(x)
+{
+	defer printf("Out x %d\n", x);
+	x *= 2;
+	if (x > 100) return x = x - 100;
+	printf("Normal end\n");
+	return x;
+}
+
+fn void main()
+{
+	defer printf("On exit\n");
+	abc(123);
+	abc(3);
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %blockret = alloca i32, align 4
+  %x1 = alloca i32, align 4
+  %blockret2 = alloca i32, align 4
+  store i32 123, ptr %x, align 4
+  %0 = load i32, ptr %x, align 4
+  %mul = mul i32 %0, 2
+  store i32 %mul, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %gt = icmp sgt i32 %1, 100
+  br i1 %gt, label %if.then, label %if.exit
+if.then:                                          ; preds = %entry
+  %2 = load i32, ptr %x, align 4
+  %sub = sub i32 %2, 100
+  store i32 %sub, ptr %x, align 4
+  store i32 %sub, ptr %blockret, align 4
+  %3 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %3)
+  br label %expr_block.exit
+if.exit:                                          ; preds = %entry
+  call void (ptr, ...) @printf(ptr @.str.1)
+  %4 = load i32, ptr %x, align 4
+  store i32 %4, ptr %blockret, align 4
+  %5 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %5)
+  br label %expr_block.exit
+expr_block.exit:                                  ; preds = %if.exit, %if.then
+  store i32 3, ptr %x1, align 4
+  %6 = load i32, ptr %x1, align 4
+  %mul3 = mul i32 %6, 2
+  store i32 %mul3, ptr %x1, align 4
+  %7 = load i32, ptr %x1, align 4
+  %gt4 = icmp sgt i32 %7, 100
+  br i1 %gt4, label %if.then5, label %if.exit7
+if.then5:                                         ; preds = %expr_block.exit
+  %8 = load i32, ptr %x1, align 4
+  %sub6 = sub i32 %8, 100
+  store i32 %sub6, ptr %x1, align 4
+  store i32 %sub6, ptr %blockret2, align 4
+  %9 = load i32, ptr %x1, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %9)
+  br label %expr_block.exit8
+if.exit7:                                         ; preds = %expr_block.exit
+  call void (ptr, ...) @printf(ptr @.str.4)
+  %10 = load i32, ptr %x1, align 4
+  store i32 %10, ptr %blockret2, align 4
+  %11 = load i32, ptr %x1, align 4
+  call void (ptr, ...) @printf(ptr @.str.5, i32 %11)
+  br label %expr_block.exit8
+expr_block.exit8:                                 ; preds = %if.exit7, %if.then5
+  call void (ptr, ...) @printf(ptr @.str.6)
+  ret void
+}
diff --git a/test/test_suite7/macros/macro_defer_scope.c3t b/test/test_suite7/macros/macro_defer_scope.c3t
new file mode 100644
index 000000000..a347d8a0c
--- /dev/null
+++ b/test/test_suite7/macros/macro_defer_scope.c3t
@@ -0,0 +1,42 @@
+// #target: macos-x64
+module foo;
+macro int @cofefe(#a)
+{
+    int x = 0;
+    defer printf("Was here\n");
+    return #a + #a;
+}
+
+extern fn int printf(char *, ...);
+
+fn void main()
+{
+    int x = 0;
+    @cofefe(x += 1);
+    printf("%d\n", x);
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %blockret = alloca i32, align 4
+  %x1 = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  store i32 0, ptr %x1, align 4
+  %0 = load i32, ptr %x, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %add2 = add i32 %1, 1
+  store i32 %add2, ptr %x, align 4
+  %add3 = add i32 %add, %add2
+  store i32 %add3, ptr %blockret, align 4
+  %2 = call i32 (ptr, ...) @printf(ptr @.str)
+  br label %expr_block.exit
+expr_block.exit:                                  ; preds = %entry
+  %3 = load i32, ptr %x, align 4
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %3)
+  ret void
+}
diff --git a/test/test_suite7/macros/macro_defer_with_body.c3t b/test/test_suite7/macros/macro_defer_with_body.c3t
new file mode 100644
index 000000000..703e3d20e
--- /dev/null
+++ b/test/test_suite7/macros/macro_defer_with_body.c3t
@@ -0,0 +1,51 @@
+module foo;
+macro int @cofefe(a; @body(x))
+{
+    @body(a);
+    @body(a);
+    return 1;
+}
+
+extern fn int printf(char *, ...);
+
+fn void main()
+{
+    int x = 0;
+    @cofefe(1; int y)
+    {
+        defer printf("defer: %d\n", x++);
+        printf("%d\n", x++);
+    };
+    printf("Done!\n");
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  store i32 1, ptr %y, align 4
+  %0 = load i32, ptr %x, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr %x, align 4
+  %1 = call i32 (ptr, ...) @printf(ptr @.str, i32 %0)
+  %2 = load i32, ptr %x, align 4
+  %add1 = add i32 %2, 1
+  store i32 %add1, ptr %x, align 4
+  %3 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %2)
+  store i32 1, ptr %y, align 4
+  %4 = load i32, ptr %x, align 4
+  %add2 = add i32 %4, 1
+  store i32 %add2, ptr %x, align 4
+  %5 = call i32 (ptr, ...) @printf(ptr @.str.2, i32 %4)
+  %6 = load i32, ptr %x, align 4
+  %add3 = add i32 %6, 1
+  store i32 %add3, ptr %x, align 4
+  %7 = call i32 (ptr, ...) @printf(ptr @.str.3, i32 %6)
+  %8 = call i32 (ptr, ...) @printf(ptr @.str.4)
+  ret void
+}
+
+
diff --git a/test/test_suite7/macros/macro_failable_return_rethrow.c3t b/test/test_suite7/macros/macro_failable_return_rethrow.c3t
new file mode 100644
index 000000000..9110112b2
--- /dev/null
+++ b/test/test_suite7/macros/macro_failable_return_rethrow.c3t
@@ -0,0 +1,58 @@
+// #target: macos-x64
+module test;
+fn int! xy()
+{
+	return 1;
+}
+macro int! foo()
+{
+	xy()!;
+	return 1;
+}
+fn void main()
+{
+	foo()!!;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %error_var = alloca i64, align 8
+  %error_var1 = alloca i64, align 8
+  %retparam = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %indirectarg = alloca %"any[]", align 8
+  %0 = call i64 @test.xy(ptr %retparam)
+  %not_err = icmp eq i64 %0, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %0, ptr %error_var1, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %2 = load i64, ptr %error_var1, align 8
+  store i64 %2, ptr %error_var, align 8
+  br label %panic_block
+
+noerr_block:                                      ; preds = %after_check
+  br label %noerr_block2
+
+panic_block:                                      ; preds = %guard_block
+  %3 = insertvalue %any undef, ptr %error_var, 0
+  %4 = insertvalue %any %3, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %4, ptr %varargslots, align 16
+  %5 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %5, i64 1, 1
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 32, ptr @.func, i64 4, i32 13, ptr byval(%"any[]") align 8 %indirectarg)
+  unreachable
+
+noerr_block2:                                     ; preds = %noerr_block
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_import_res_private.c3t b/test/test_suite7/macros/macro_import_res_private.c3t
new file mode 100644
index 000000000..2fcc69cb3
--- /dev/null
+++ b/test/test_suite7/macros/macro_import_res_private.c3t
@@ -0,0 +1,26 @@
+// #target: macos-x64
+module foo;
+fn void foo1() @private
+{}
+
+module bar;
+import foo @public;
+macro bar1()
+{
+    foo::foo1();
+}
+
+module baz;
+import bar;
+fn void test()
+{
+    bar::bar1();
+}
+
+/* #expect: baz.ll
+
+define void @baz.test() #0 {
+entry:
+  call void @foo.foo1()
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_import_resolution.c3 b/test/test_suite7/macros/macro_import_resolution.c3
new file mode 100644
index 000000000..1772389fd
--- /dev/null
+++ b/test/test_suite7/macros/macro_import_resolution.c3
@@ -0,0 +1,13 @@
+module foo;
+import bar;
+fn void run()
+{
+    bar::test();
+}
+
+module bar;
+import baz;
+macro test() { baz::test(); }
+
+module baz;
+fn void test() {}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_nested_labels.c3t b/test/test_suite7/macros/macro_nested_labels.c3t
new file mode 100644
index 000000000..0a1416bee
--- /dev/null
+++ b/test/test_suite7/macros/macro_nested_labels.c3t
@@ -0,0 +1,356 @@
+module test;
+
+extern fn void printf(char *string, ...);
+
+macro checker(int x, $i)
+{
+    var $indent = 3 - $i;
+    for (int i = 0; i < $indent; i++) printf(" ");
+    printf("Enter %d\n", $i);
+    while FOO: (x-- > 0)
+    {
+        for (int i = 0; i < $indent; i++) printf(" ");
+        printf("Helo %d\n", x);
+        $if $i > 0:
+            checker(x, $i - 1);
+        $endif
+        if (x % 2 == 0) break FOO;
+    }
+    for (int i = 0; i < $indent; i++) printf(" ");
+    printf("Exit %d\n", $i);
+}
+
+fn void main()
+{
+    int ab = 7;
+    checker(ab, 3);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %ab = alloca i32, align 4
+  %x = alloca i32, align 4
+  %i = alloca i32, align 4
+  %i3 = alloca i32, align 4
+  %x9 = alloca i32, align 4
+  %i10 = alloca i32, align 4
+  %i20 = alloca i32, align 4
+  %x26 = alloca i32, align 4
+  %i27 = alloca i32, align 4
+  %i37 = alloca i32, align 4
+  %x43 = alloca i32, align 4
+  %i44 = alloca i32, align 4
+  %i54 = alloca i32, align 4
+  %i61 = alloca i32, align 4
+  %i72 = alloca i32, align 4
+  %i83 = alloca i32, align 4
+  %i94 = alloca i32, align 4
+  store i32 7, ptr %ab, align 4
+  %0 = load i32, ptr %ab, align 4
+  store i32 %0, ptr %x, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %1, 0
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  call void (ptr, ...) @printf(ptr @.str)
+  %2 = load i32, ptr %i, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  call void (ptr, ...) @printf(ptr @.str.1, i32 3)
+  br label %loop.cond1
+
+loop.cond1:                                       ; preds = %if.exit92, %loop.exit
+  %3 = load i32, ptr %x, align 4
+  %sub = sub i32 %3, 1
+  store i32 %sub, ptr %x, align 4
+  %gt = icmp sgt i32 %3, 0
+  br i1 %gt, label %loop.body2, label %loop.exit93
+
+loop.body2:                                       ; preds = %loop.cond1
+  store i32 0, ptr %i3, align 4
+  br label %loop.cond4
+
+loop.cond4:                                       ; preds = %loop.body6, %loop.body2
+  %4 = load i32, ptr %i3, align 4
+  %lt5 = icmp slt i32 %4, 0
+  br i1 %lt5, label %loop.body6, label %loop.exit8
+
+loop.body6:                                       ; preds = %loop.cond4
+  call void (ptr, ...) @printf(ptr @.str.2)
+  %5 = load i32, ptr %i3, align 4
+  %add7 = add i32 %5, 1
+  store i32 %add7, ptr %i3, align 4
+  br label %loop.cond4
+
+loop.exit8:                                       ; preds = %loop.cond4
+  %6 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %6)
+  %7 = load i32, ptr %x, align 4
+  store i32 %7, ptr %x9, align 4
+  store i32 0, ptr %i10, align 4
+  br label %loop.cond11
+
+loop.cond11:                                      ; preds = %loop.body13, %loop.exit8
+  %8 = load i32, ptr %i10, align 4
+  %lt12 = icmp slt i32 %8, 1
+  br i1 %lt12, label %loop.body13, label %loop.exit15
+
+loop.body13:                                      ; preds = %loop.cond11
+  call void (ptr, ...) @printf(ptr @.str.4)
+  %9 = load i32, ptr %i10, align 4
+  %add14 = add i32 %9, 1
+  store i32 %add14, ptr %i10, align 4
+  br label %loop.cond11
+
+loop.exit15:                                      ; preds = %loop.cond11
+  call void (ptr, ...) @printf(ptr @.str.5, i32 2)
+  br label %loop.cond16
+
+loop.cond16:                                      ; preds = %if.exit81, %loop.exit15
+  %10 = load i32, ptr %x9, align 4
+  %sub17 = sub i32 %10, 1
+  store i32 %sub17, ptr %x9, align 4
+  %gt18 = icmp sgt i32 %10, 0
+  br i1 %gt18, label %loop.body19, label %loop.exit82
+
+loop.body19:                                      ; preds = %loop.cond16
+  store i32 0, ptr %i20, align 4
+  br label %loop.cond21
+
+loop.cond21:                                      ; preds = %loop.body23, %loop.body19
+  %11 = load i32, ptr %i20, align 4
+  %lt22 = icmp slt i32 %11, 1
+  br i1 %lt22, label %loop.body23, label %loop.exit25
+
+loop.body23:                                      ; preds = %loop.cond21
+  call void (ptr, ...) @printf(ptr @.str.6)
+  %12 = load i32, ptr %i20, align 4
+  %add24 = add i32 %12, 1
+  store i32 %add24, ptr %i20, align 4
+  br label %loop.cond21
+
+loop.exit25:                                      ; preds = %loop.cond21
+  %13 = load i32, ptr %x9, align 4
+  call void (ptr, ...) @printf(ptr @.str.7, i32 %13)
+  %14 = load i32, ptr %x9, align 4
+  store i32 %14, ptr %x26, align 4
+  store i32 0, ptr %i27, align 4
+  br label %loop.cond28
+
+loop.cond28:                                      ; preds = %loop.body30, %loop.exit25
+  %15 = load i32, ptr %i27, align 4
+  %lt29 = icmp slt i32 %15, 2
+  br i1 %lt29, label %loop.body30, label %loop.exit32
+
+loop.body30:                                      ; preds = %loop.cond28
+  call void (ptr, ...) @printf(ptr @.str.8)
+  %16 = load i32, ptr %i27, align 4
+  %add31 = add i32 %16, 1
+  store i32 %add31, ptr %i27, align 4
+  br label %loop.cond28
+
+loop.exit32:                                      ; preds = %loop.cond28
+  call void (ptr, ...) @printf(ptr @.str.9, i32 1)
+  br label %loop.cond33
+
+loop.cond33:                                      ; preds = %if.exit70, %loop.exit32
+  %17 = load i32, ptr %x26, align 4
+  %sub34 = sub i32 %17, 1
+  store i32 %sub34, ptr %x26, align 4
+  %gt35 = icmp sgt i32 %17, 0
+  br i1 %gt35, label %loop.body36, label %loop.exit71
+
+loop.body36:                                      ; preds = %loop.cond33
+  store i32 0, ptr %i37, align 4
+  br label %loop.cond38
+
+loop.cond38:                                      ; preds = %loop.body40, %loop.body36
+  %18 = load i32, ptr %i37, align 4
+  %lt39 = icmp slt i32 %18, 2
+  br i1 %lt39, label %loop.body40, label %loop.exit42
+
+loop.body40:                                      ; preds = %loop.cond38
+  call void (ptr, ...) @printf(ptr @.str.10)
+  %19 = load i32, ptr %i37, align 4
+  %add41 = add i32 %19, 1
+  store i32 %add41, ptr %i37, align 4
+  br label %loop.cond38
+
+loop.exit42:                                      ; preds = %loop.cond38
+  %20 = load i32, ptr %x26, align 4
+  call void (ptr, ...) @printf(ptr @.str.11, i32 %20)
+  %21 = load i32, ptr %x26, align 4
+  store i32 %21, ptr %x43, align 4
+  store i32 0, ptr %i44, align 4
+  br label %loop.cond45
+
+loop.cond45:                                      ; preds = %loop.body47, %loop.exit42
+  %22 = load i32, ptr %i44, align 4
+  %lt46 = icmp slt i32 %22, 3
+  br i1 %lt46, label %loop.body47, label %loop.exit49
+
+loop.body47:                                      ; preds = %loop.cond45
+  call void (ptr, ...) @printf(ptr @.str.12)
+  %23 = load i32, ptr %i44, align 4
+  %add48 = add i32 %23, 1
+  store i32 %add48, ptr %i44, align 4
+  br label %loop.cond45
+
+loop.exit49:                                      ; preds = %loop.cond45
+  call void (ptr, ...) @printf(ptr @.str.13, i32 0)
+  br label %loop.cond50
+
+loop.cond50:                                      ; preds = %if.exit, %loop.exit49
+  %24 = load i32, ptr %x43, align 4
+  %sub51 = sub i32 %24, 1
+  store i32 %sub51, ptr %x43, align 4
+  %gt52 = icmp sgt i32 %24, 0
+  br i1 %gt52, label %loop.body53, label %loop.exit60
+
+loop.body53:                                      ; preds = %loop.cond50
+  store i32 0, ptr %i54, align 4
+  br label %loop.cond55
+
+loop.cond55:                                      ; preds = %loop.body57, %loop.body53
+  %25 = load i32, ptr %i54, align 4
+  %lt56 = icmp slt i32 %25, 3
+  br i1 %lt56, label %loop.body57, label %loop.exit59
+
+loop.body57:                                      ; preds = %loop.cond55
+  call void (ptr, ...) @printf(ptr @.str.14)
+  %26 = load i32, ptr %i54, align 4
+  %add58 = add i32 %26, 1
+  store i32 %add58, ptr %i54, align 4
+  br label %loop.cond55
+
+loop.exit59:                                      ; preds = %loop.cond55
+  %27 = load i32, ptr %x43, align 4
+  call void (ptr, ...) @printf(ptr @.str.15, i32 %27)
+  %28 = load i32, ptr %x43, align 4
+  %smod = srem i32 %28, 2
+  %eq = icmp eq i32 %smod, 0
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.exit59
+  br label %loop.exit60
+
+if.exit:                                          ; preds = %loop.exit59
+  br label %loop.cond50
+
+loop.exit60:                                      ; preds = %if.then, %loop.cond50
+  store i32 0, ptr %i61, align 4
+  br label %loop.cond62
+
+loop.cond62:                                      ; preds = %loop.body64, %loop.exit60
+  %29 = load i32, ptr %i61, align 4
+  %lt63 = icmp slt i32 %29, 3
+  br i1 %lt63, label %loop.body64, label %loop.exit66
+
+loop.body64:                                      ; preds = %loop.cond62
+  call void (ptr, ...) @printf(ptr @.str.16)
+  %30 = load i32, ptr %i61, align 4
+  %add65 = add i32 %30, 1
+  store i32 %add65, ptr %i61, align 4
+  br label %loop.cond62
+
+loop.exit66:                                      ; preds = %loop.cond62
+  call void (ptr, ...) @printf(ptr @.str.17, i32 0)
+  %31 = load i32, ptr %x26, align 4
+  %smod67 = srem i32 %31, 2
+  %eq68 = icmp eq i32 %smod67, 0
+  br i1 %eq68, label %if.then69, label %if.exit70
+
+if.then69:                                        ; preds = %loop.exit66
+  br label %loop.exit71
+
+if.exit70:                                        ; preds = %loop.exit66
+  br label %loop.cond33
+
+loop.exit71:                                      ; preds = %if.then69, %loop.cond33
+  store i32 0, ptr %i72, align 4
+  br label %loop.cond73
+
+loop.cond73:                                      ; preds = %loop.body75, %loop.exit71
+  %32 = load i32, ptr %i72, align 4
+  %lt74 = icmp slt i32 %32, 2
+  br i1 %lt74, label %loop.body75, label %loop.exit77
+
+loop.body75:                                      ; preds = %loop.cond73
+  call void (ptr, ...) @printf(ptr @.str.18)
+  %33 = load i32, ptr %i72, align 4
+  %add76 = add i32 %33, 1
+  store i32 %add76, ptr %i72, align 4
+  br label %loop.cond73
+
+loop.exit77:                                      ; preds = %loop.cond73
+  call void (ptr, ...) @printf(ptr @.str.19, i32 1)
+  %34 = load i32, ptr %x9, align 4
+  %smod78 = srem i32 %34, 2
+  %eq79 = icmp eq i32 %smod78, 0
+  br i1 %eq79, label %if.then80, label %if.exit81
+
+if.then80:                                        ; preds = %loop.exit77
+  br label %loop.exit82
+
+if.exit81:                                        ; preds = %loop.exit77
+  br label %loop.cond16
+
+loop.exit82:                                      ; preds = %if.then80, %loop.cond16
+  store i32 0, ptr %i83, align 4
+  br label %loop.cond84
+
+loop.cond84:                                      ; preds = %loop.body86, %loop.exit82
+  %35 = load i32, ptr %i83, align 4
+  %lt85 = icmp slt i32 %35, 1
+  br i1 %lt85, label %loop.body86, label %loop.exit88
+
+loop.body86:                                      ; preds = %loop.cond84
+  call void (ptr, ...) @printf(ptr @.str.20)
+  %36 = load i32, ptr %i83, align 4
+  %add87 = add i32 %36, 1
+  store i32 %add87, ptr %i83, align 4
+  br label %loop.cond84
+
+loop.exit88:                                      ; preds = %loop.cond84
+  call void (ptr, ...) @printf(ptr @.str.21, i32 2)
+  %37 = load i32, ptr %x, align 4
+  %smod89 = srem i32 %37, 2
+  %eq90 = icmp eq i32 %smod89, 0
+  br i1 %eq90, label %if.then91, label %if.exit92
+
+if.then91:                                        ; preds = %loop.exit88
+  br label %loop.exit93
+
+if.exit92:                                        ; preds = %loop.exit88
+  br label %loop.cond1
+
+loop.exit93:                                      ; preds = %if.then91, %loop.cond1
+  store i32 0, ptr %i94, align 4
+  br label %loop.cond95
+
+loop.cond95:                                      ; preds = %loop.body97, %loop.exit93
+  %38 = load i32, ptr %i94, align 4
+  %lt96 = icmp slt i32 %38, 0
+  br i1 %lt96, label %loop.body97, label %loop.exit99
+
+loop.body97:                                      ; preds = %loop.cond95
+  call void (ptr, ...) @printf(ptr @.str.22)
+  %39 = load i32, ptr %i94, align 4
+  %add98 = add i32 %39, 1
+  store i32 %add98, ptr %i94, align 4
+  br label %loop.cond95
+
+loop.exit99:                                      ; preds = %loop.cond95
+  call void (ptr, ...) @printf(ptr @.str.23, i32 3)
+  ret void
+}
diff --git a/test/test_suite7/macros/macro_ref_body_err1.c3 b/test/test_suite7/macros/macro_ref_body_err1.c3
new file mode 100644
index 000000000..7c88a6dfc
--- /dev/null
+++ b/test/test_suite7/macros/macro_ref_body_err1.c3
@@ -0,0 +1,4 @@
+
+macro void @bar(;@body(int &foo)) // #error: did you mean 'int*'
+{}
+
diff --git a/test/test_suite7/macros/macro_ref_body_err2.c3 b/test/test_suite7/macros/macro_ref_body_err2.c3
new file mode 100644
index 000000000..1ba1fd8e3
--- /dev/null
+++ b/test/test_suite7/macros/macro_ref_body_err2.c3
@@ -0,0 +1,11 @@
+fn void main()
+{
+	@foo(;int &foo) // #error: did you mean 'int*'
+	{
+	};
+}
+
+macro void @foo(;@body(&foo))
+{
+}
+
diff --git a/test/test_suite7/macros/macro_resolution.c3 b/test/test_suite7/macros/macro_resolution.c3
new file mode 100644
index 000000000..0776d1441
--- /dev/null
+++ b/test/test_suite7/macros/macro_resolution.c3
@@ -0,0 +1,24 @@
+module foo;
+import bar;
+fn void run()
+{
+    bar::test();
+}
+
+fn void run2()
+{
+    bar::test2();
+}
+
+fn void tester() @private {}
+
+module bar;
+macro test()
+{
+    tester(); // #error: 'tester' could not be found, did you spell it right
+}
+
+macro test2()
+{
+    foo::tester(); // #error: 'foo::tester' could not be found, did you spell
+}
diff --git a/test/test_suite7/macros/macro_rtype.c3 b/test/test_suite7/macros/macro_rtype.c3
new file mode 100644
index 000000000..394d71612
--- /dev/null
+++ b/test/test_suite7/macros/macro_rtype.c3
@@ -0,0 +1,9 @@
+macro int frob()
+{
+    return 0.0; // #error: int
+}
+
+fn void test1()
+{
+    frob();
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_tagof.c3t b/test/test_suite7/macros/macro_tagof.c3t
new file mode 100644
index 000000000..0227bba7b
--- /dev/null
+++ b/test/test_suite7/macros/macro_tagof.c3t
@@ -0,0 +1,11 @@
+import std::io;
+macro int test() @tag("hello", 1)
+{
+	return 1;
+}
+
+fn void main()
+{
+	var $v = test.tagof("hello");
+	io::printn($v);
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_typed_varargs.c3t b/test/test_suite7/macros/macro_typed_varargs.c3t
new file mode 100644
index 000000000..05b34eb17
--- /dev/null
+++ b/test/test_suite7/macros/macro_typed_varargs.c3t
@@ -0,0 +1,128 @@
+// #target: macos-x64
+
+module test;
+
+import std::io;
+
+macro foo(int... x)
+{
+	foreach (i : x)
+	{
+		io::printfn("%d", i);
+	}
+}
+
+macro foo2(x...)
+{
+	foreach (i : x)
+	{
+		io::printfn("%d", *(int*)i);
+	}
+}
+
+fn void main()
+{
+	foo(1, -1, 3141, 999 + 1);
+	foo2(1, -1, 3141, 999 + 1);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %literal = alloca [4 x i32], align 16
+  %x = alloca %"int[]", align 8
+  %.anon = alloca i64, align 8
+  %i = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %literal1 = alloca [4 x %any], align 16
+  %taddr = alloca i32, align 4
+  %taddr3 = alloca i32, align 4
+  %taddr5 = alloca i32, align 4
+  %taddr7 = alloca i32, align 4
+  %x8 = alloca %"any[]", align 8
+  %.anon10 = alloca i64, align 8
+  %i14 = alloca %any, align 8
+  %varargslots16 = alloca [1 x %any], align 16
+  %retparam17 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 16 @.__const, i32 16, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[]" %0, i64 4, 1
+  store %"int[]" %1, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  %2 = load i64, ptr %ptradd, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %3 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %3, %2
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load ptr, ptr %x, align 8
+  %5 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %4, i64 %5
+  %6 = load i32, ptr %ptroffset, align 4
+  store i32 %6, ptr %i, align 4
+  %7 = insertvalue %any undef, ptr %i, 0
+  %8 = insertvalue %any %7, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %8, ptr %varargslots, align 16
+  %9 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr %varargslots, i64 1)
+  %10 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %10, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  store i32 1, ptr %taddr, align 4
+  %11 = insertvalue %any undef, ptr %taddr, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %12, ptr %literal1, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal1, i64 16
+  store i32 -1, ptr %taddr3, align 4
+  %13 = insertvalue %any undef, ptr %taddr3, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %14, ptr %ptradd2, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %literal1, i64 32
+  store i32 3141, ptr %taddr5, align 4
+  %15 = insertvalue %any undef, ptr %taddr5, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %16, ptr %ptradd4, align 8
+  %ptradd6 = getelementptr inbounds i8, ptr %literal1, i64 48
+  store i32 1000, ptr %taddr7, align 4
+  %17 = insertvalue %any undef, ptr %taddr7, 0
+  %18 = insertvalue %any %17, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %18, ptr %ptradd6, align 8
+  %19 = insertvalue %"any[]" undef, ptr %literal1, 0
+  %20 = insertvalue %"any[]" %19, i64 4, 1
+  store %"any[]" %20, ptr %x8, align 8
+  %ptradd9 = getelementptr inbounds i8, ptr %x8, i64 8
+  %21 = load i64, ptr %ptradd9, align 8
+  store i64 0, ptr %.anon10, align 8
+  br label %loop.cond11
+
+loop.cond11:                                      ; preds = %loop.body13, %loop.exit
+  %22 = load i64, ptr %.anon10, align 8
+  %lt12 = icmp ult i64 %22, %21
+  br i1 %lt12, label %loop.body13, label %loop.exit19
+
+loop.body13:                                      ; preds = %loop.cond11
+  %23 = load ptr, ptr %x8, align 8
+  %24 = load i64, ptr %.anon10, align 8
+  %ptroffset15 = getelementptr inbounds [16 x i8], ptr %23, i64 %24
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %i14, ptr align 8 %ptroffset15, i32 16, i1 false)
+  %25 = load ptr, ptr %i14, align 8
+  %26 = insertvalue %any undef, ptr %25, 0
+  %27 = insertvalue %any %26, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %27, ptr %varargslots16, align 16
+  %28 = call i64 @std.io.printfn(ptr %retparam17, ptr @.str.1, i64 2, ptr %varargslots16, i64 1)
+  %29 = load i64, ptr %.anon10, align 8
+  %addnuw18 = add nuw i64 %29, 1
+  store i64 %addnuw18, ptr %.anon10, align 8
+  br label %loop.cond11
+
+loop.exit19:                                      ; preds = %loop.cond11
+  ret void
+}
diff --git a/test/test_suite7/macros/macro_untyped_varargs.c3 b/test/test_suite7/macros/macro_untyped_varargs.c3
new file mode 100644
index 000000000..fd3984f6f
--- /dev/null
+++ b/test/test_suite7/macros/macro_untyped_varargs.c3
@@ -0,0 +1,25 @@
+macro foo(...)
+{
+	$vaarg["hello"]; // #error: Expected the argument index here
+	int x;
+	$vaarg[x]; // #error: Vararg functions need a constant argument
+	$vaarg[-1]; // #error: negative
+	$vaarg[100]; // #error: varargs exist
+}
+
+macro foo2(...)
+{
+	$vaconst[0];
+}
+
+macro foo3(...)
+{
+	$vatype[0] a;
+}
+fn void main()
+{
+	foo(1, -1, 3141, 999 + 1);
+	int x;
+	foo2(x); // #error: This argument needs to be a compile time constant
+	foo3(3); // #error: The argument was not a type.
+}
diff --git a/test/test_suite7/macros/macro_untyped_varargs_2.c3t b/test/test_suite7/macros/macro_untyped_varargs_2.c3t
new file mode 100644
index 000000000..8621fb3ef
--- /dev/null
+++ b/test/test_suite7/macros/macro_untyped_varargs_2.c3t
@@ -0,0 +1,190 @@
+// #target: macos-x64
+
+module test;
+
+import std::io;
+
+macro @foo(...)
+{
+	int i = $vaarg[1] + $vaarg[1];
+	int j = $vaexpr[2] + $vaexpr[2];
+	$for (var $i = 0; $i < $vacount; $i++)
+		io::printfn("%d", $vaarg[$i]);
+	$endfor;
+}
+
+macro foo2(...)
+{
+	$for (var $i = 0; $i < $vacount; $i++)
+		{
+			$vatype[$i] x;
+		}
+		io::printfn("%s", $vatype[$i].nameof);
+	$endfor;
+}
+
+macro foo3(...)
+{
+	var $x = 0;
+	$for (var $i = 0; $i < $vacount; $i++)
+		$x += $vaconst[$i];
+	$endfor;
+	return $x;
+}
+
+macro @foo4(...)
+{
+	$typeof($vaexpr[0]) a = $vaexpr[0];
+	$vaexpr[0] = $vaexpr[1];
+	$vaexpr[1] = a;
+}
+fn int ping(int val)
+{
+	io::printfn("Ping[%d]", val);
+	return val;
+}
+
+fn void main()
+{
+	@foo(ping(1), ping(-1), ping(3141), ping(999 + 1));
+	foo2(int, double);
+	var $x = foo3(1, 4, 100);
+	io::printfn("%d", $x);
+	int x = 123;
+	int y = 33;
+	@foo4(x, y);
+	io::printfn("%d, %d", x, y);
+	@foo4(x, y);
+	io::printfn("%d, %d", x, y);
+}
+
+/* #expect: test.ll
+
+define i32 @test.ping(i32 %0) #0 {
+entry:
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  store i32 %0, ptr %taddr, align 4
+  %1 = insertvalue %any undef, ptr %taddr, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 8, ptr %varargslots, i64 1)
+  ret i32 %0
+}
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %i = alloca i32, align 4
+  %j = alloca i32, align 4
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %retparam = alloca i64, align 8
+  %varargslots2 = alloca [1 x %any], align 16
+  %taddr3 = alloca i32, align 4
+  %retparam4 = alloca i64, align 8
+  %varargslots5 = alloca [1 x %any], align 16
+  %taddr6 = alloca i32, align 4
+  %retparam7 = alloca i64, align 8
+  %varargslots8 = alloca [1 x %any], align 16
+  %taddr9 = alloca i32, align 4
+  %retparam10 = alloca i64, align 8
+  %x = alloca i32, align 4
+  %varargslots11 = alloca [1 x %any], align 16
+  %taddr12 = alloca %"char[]", align 8
+  %retparam13 = alloca i64, align 8
+  %x14 = alloca double, align 8
+  %varargslots15 = alloca [1 x %any], align 16
+  %taddr16 = alloca %"char[]", align 8
+  %retparam17 = alloca i64, align 8
+  %varargslots18 = alloca [1 x %any], align 16
+  %taddr19 = alloca i32, align 4
+  %retparam20 = alloca i64, align 8
+  %x21 = alloca i32, align 4
+  %y = alloca i32, align 4
+  %a = alloca i32, align 4
+  %varargslots22 = alloca [2 x %any], align 16
+  %retparam23 = alloca i64, align 8
+  %a24 = alloca i32, align 4
+  %varargslots25 = alloca [2 x %any], align 16
+  %retparam27 = alloca i64, align 8
+  %0 = call i32 @test.ping(i32 -1)
+  %1 = call i32 @test.ping(i32 1)
+  %2 = call i32 @test.ping(i32 3141)
+  %3 = call i32 @test.ping(i32 1000)
+  %add = add i32 %0, %0
+  store i32 %add, ptr %i, align 4
+  %4 = call i32 @test.ping(i32 3141)
+  %5 = call i32 @test.ping(i32 3141)
+  %add1 = add i32 %4, %5
+  store i32 %add1, ptr %j, align 4
+  store i32 %1, ptr %taddr, align 4
+  %6 = insertvalue %any undef, ptr %taddr, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %7, ptr %varargslots, align 16
+  %8 = call i64 @std.io.printfn(ptr %retparam, ptr @.str.1, i64 2, ptr %varargslots, i64 1)
+  store i32 %0, ptr %taddr3, align 4
+  %9 = insertvalue %any undef, ptr %taddr3, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %10, ptr %varargslots2, align 16
+  %11 = call i64 @std.io.printfn(ptr %retparam4, ptr @.str.2, i64 2, ptr %varargslots2, i64 1)
+  store i32 %2, ptr %taddr6, align 4
+  %12 = insertvalue %any undef, ptr %taddr6, 0
+  %13 = insertvalue %any %12, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %13, ptr %varargslots5, align 16
+  %14 = call i64 @std.io.printfn(ptr %retparam7, ptr @.str.3, i64 2, ptr %varargslots5, i64 1)
+  store i32 %3, ptr %taddr9, align 4
+  %15 = insertvalue %any undef, ptr %taddr9, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %16, ptr %varargslots8, align 16
+  %17 = call i64 @std.io.printfn(ptr %retparam10, ptr @.str.4, i64 2, ptr %varargslots8, i64 1)
+  store i32 0, ptr %x, align 4
+  store %"char[]" { ptr @.str.6, i64 3 }, ptr %taddr12, align 8
+  %18 = insertvalue %any undef, ptr %taddr12, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %19, ptr %varargslots11, align 16
+  %20 = call i64 @std.io.printfn(ptr %retparam13, ptr @.str.5, i64 2, ptr %varargslots11, i64 1)
+  store double 0.000000e+00, ptr %x14, align 8
+  store %"char[]" { ptr @.str.8, i64 6 }, ptr %taddr16, align 8
+  %21 = insertvalue %any undef, ptr %taddr16, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %22, ptr %varargslots15, align 16
+  %23 = call i64 @std.io.printfn(ptr %retparam17, ptr @.str.7, i64 2, ptr %varargslots15, i64 1)
+  store i32 105, ptr %taddr19, align 4
+  %24 = insertvalue %any undef, ptr %taddr19, 0
+  %25 = insertvalue %any %24, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %25, ptr %varargslots18, align 16
+  %26 = call i64 @std.io.printfn(ptr %retparam20, ptr @.str.9, i64 2, ptr %varargslots18, i64 1)
+  store i32 123, ptr %x21, align 4
+  store i32 33, ptr %y, align 4
+  %27 = load i32, ptr %x21, align 4
+  store i32 %27, ptr %a, align 4
+  %28 = load i32, ptr %y, align 4
+  store i32 %28, ptr %x21, align 4
+  %29 = load i32, ptr %a, align 4
+  store i32 %29, ptr %y, align 4
+  %30 = insertvalue %any undef, ptr %x21, 0
+  %31 = insertvalue %any %30, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %31, ptr %varargslots22, align 16
+  %32 = insertvalue %any undef, ptr %y, 0
+  %33 = insertvalue %any %32, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots22, i64 16
+  store %any %33, ptr %ptradd, align 16
+  %34 = call i64 @std.io.printfn(ptr %retparam23, ptr @.str.10, i64 6, ptr %varargslots22, i64 2)
+  %35 = load i32, ptr %x21, align 4
+  store i32 %35, ptr %a24, align 4
+  %36 = load i32, ptr %y, align 4
+  store i32 %36, ptr %x21, align 4
+  %37 = load i32, ptr %a24, align 4
+  store i32 %37, ptr %y, align 4
+  %38 = insertvalue %any undef, ptr %x21, 0
+  %39 = insertvalue %any %38, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %39, ptr %varargslots25, align 16
+  %40 = insertvalue %any undef, ptr %y, 0
+  %41 = insertvalue %any %40, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd26 = getelementptr inbounds i8, ptr %varargslots25, i64 16
+  store %any %41, ptr %ptradd26, align 16
+  %42 = call i64 @std.io.printfn(ptr %retparam27, ptr @.str.11, i64 6, ptr %varargslots25, i64 2)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/macro_vasplat.c3t b/test/test_suite7/macros/macro_vasplat.c3t
new file mode 100644
index 000000000..2151da33a
--- /dev/null
+++ b/test/test_suite7/macros/macro_vasplat.c3t
@@ -0,0 +1,459 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+macro @hello(...)
+{
+	int[?] a = { 1, $vasplat, 3 };
+	foreach (i, x : a) io::printfn("%d: %d", i, x);
+}
+
+macro @hello1(...)
+{
+	int[?] a = { 1, $vasplat };
+	foreach (i, x : a) io::printfn("x:%d: %d", i, x);
+}
+
+macro @hello2(...)
+{
+	int[?] a = { $vasplat, 888 };
+	foreach (i, x : a) io::printfn("x:%d: %d", i, x);
+}
+
+macro @hello3(...)
+{
+	int[?] a = { $vasplat };
+	foreach (i, x : a) io::printfn("x:%d: %d", i, x);
+}
+
+macro @hello4(...)
+{
+	int[?] a = { 5, $vasplat[2..4], 77 };
+	foreach (i, x : a) io::printfn("y:%d: %d", i, x);
+}
+
+macro @hello5(...)
+{
+	int[?] a = { 5, $vasplat[2..], 77 };
+	foreach (i, x : a) io::printfn("y:%d: %d", i, x);
+	int[?] b = { 55, $vasplat[2..^2], 88 };
+	foreach (i, x : b) io::printfn("z:%d: %d", i, x);
+	int[?] c = { 55, $vasplat[0:^2], 88 };
+	foreach (i, x : c) io::printfn("zz:%d: %d", i, x);
+}
+
+macro @hello6(...)
+{
+	@hello(66, $vasplat);
+}
+fn void main()
+{
+  @hello1(223, 326);
+  @hello1();
+  @hello(26, 36);
+  @hello();
+  @hello2(2123, 3326);
+  @hello2();
+  @hello3(2123, 3326);
+  @hello4(1, 2, 3, 4, 5, 6, 7, 8);
+  @hello5(1, 2, 3, 4, 5, 6, 7, 8);
+  @hello6(1, 2, 3);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca [3 x i32], align 4
+  %.anon = alloca i64, align 8
+  %i = alloca i64, align 8
+  %x = alloca i32, align 4
+  %varargslots = alloca [2 x %any], align 16
+  %retparam = alloca i64, align 8
+  %a1 = alloca [1 x i32], align 4
+  %i2 = alloca i64, align 8
+  %x3 = alloca i32, align 4
+  %varargslots4 = alloca [2 x %any], align 16
+  %retparam6 = alloca i64, align 8
+  %a7 = alloca [4 x i32], align 16
+  %.anon8 = alloca i64, align 8
+  %i12 = alloca i64, align 8
+  %x13 = alloca i32, align 4
+  %varargslots15 = alloca [2 x %any], align 16
+  %retparam17 = alloca i64, align 8
+  %a20 = alloca [2 x i32], align 4
+  %.anon21 = alloca i64, align 8
+  %i25 = alloca i64, align 8
+  %x26 = alloca i32, align 4
+  %varargslots28 = alloca [2 x %any], align 16
+  %retparam30 = alloca i64, align 8
+  %a33 = alloca [3 x i32], align 4
+  %.anon34 = alloca i64, align 8
+  %i38 = alloca i64, align 8
+  %x39 = alloca i32, align 4
+  %varargslots41 = alloca [2 x %any], align 16
+  %retparam43 = alloca i64, align 8
+  %a46 = alloca [1 x i32], align 4
+  %i47 = alloca i64, align 8
+  %x48 = alloca i32, align 4
+  %varargslots49 = alloca [2 x %any], align 16
+  %retparam51 = alloca i64, align 8
+  %a52 = alloca [2 x i32], align 4
+  %.anon53 = alloca i64, align 8
+  %i57 = alloca i64, align 8
+  %x58 = alloca i32, align 4
+  %varargslots60 = alloca [2 x %any], align 16
+  %retparam62 = alloca i64, align 8
+  %a65 = alloca [5 x i32], align 16
+  %.anon66 = alloca i64, align 8
+  %i70 = alloca i64, align 8
+  %x71 = alloca i32, align 4
+  %varargslots73 = alloca [2 x %any], align 16
+  %retparam75 = alloca i64, align 8
+  %a78 = alloca [8 x i32], align 16
+  %.anon79 = alloca i64, align 8
+  %i83 = alloca i64, align 8
+  %x84 = alloca i32, align 4
+  %varargslots86 = alloca [2 x %any], align 16
+  %retparam88 = alloca i64, align 8
+  %b = alloca [7 x i32], align 16
+  %.anon91 = alloca i64, align 8
+  %i95 = alloca i64, align 8
+  %x96 = alloca i32, align 4
+  %varargslots98 = alloca [2 x %any], align 16
+  %retparam100 = alloca i64, align 8
+  %c = alloca [8 x i32], align 16
+  %.anon103 = alloca i64, align 8
+  %i107 = alloca i64, align 8
+  %x108 = alloca i32, align 4
+  %varargslots110 = alloca [2 x %any], align 16
+  %retparam112 = alloca i64, align 8
+  %a115 = alloca [6 x i32], align 16
+  %.anon116 = alloca i64, align 8
+  %i120 = alloca i64, align 8
+  %x121 = alloca i32, align 4
+  %varargslots123 = alloca [2 x %any], align 16
+  %retparam125 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a, ptr align 4 @.__const, i32 12, i1 false)
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 3, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  store i64 %1, ptr %i, align 8
+  %2 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %a, i64 %2
+  %3 = load i32, ptr %ptroffset, align 4
+  store i32 %3, ptr %x, align 4
+  %4 = insertvalue %any undef, ptr %i, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %6 = insertvalue %any undef, ptr %x, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %7, ptr %ptradd, align 16
+  %8 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 8, ptr %varargslots, i64 2)
+  %9 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %9, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a1, ptr align 4 @.__const.1, i32 4, i1 false)
+  store i64 0, ptr %i2, align 8
+  %10 = load i32, ptr %a1, align 4
+  store i32 %10, ptr %x3, align 4
+  %11 = insertvalue %any undef, ptr %i2, 0
+  %12 = insertvalue %any %11, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %12, ptr %varargslots4, align 16
+  %13 = insertvalue %any undef, ptr %x3, 0
+  %14 = insertvalue %any %13, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd5 = getelementptr inbounds i8, ptr %varargslots4, i64 16
+  store %any %14, ptr %ptradd5, align 16
+  %15 = call i64 @std.io.printfn(ptr %retparam6, ptr @.str.2, i64 8, ptr %varargslots4, i64 2)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %a7, ptr align 16 @.__const.3, i32 16, i1 false)
+  store i64 0, ptr %.anon8, align 8
+  br label %loop.cond9
+
+loop.cond9:                                       ; preds = %loop.body11, %loop.exit
+  %16 = load i64, ptr %.anon8, align 8
+  %gt10 = icmp ugt i64 4, %16
+  br i1 %gt10, label %loop.body11, label %loop.exit19
+
+loop.body11:                                      ; preds = %loop.cond9
+  %17 = load i64, ptr %.anon8, align 8
+  store i64 %17, ptr %i12, align 8
+  %18 = load i64, ptr %.anon8, align 8
+  %ptroffset14 = getelementptr inbounds [4 x i8], ptr %a7, i64 %18
+  %19 = load i32, ptr %ptroffset14, align 4
+  store i32 %19, ptr %x13, align 4
+  %20 = insertvalue %any undef, ptr %i12, 0
+  %21 = insertvalue %any %20, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %21, ptr %varargslots15, align 16
+  %22 = insertvalue %any undef, ptr %x13, 0
+  %23 = insertvalue %any %22, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd16 = getelementptr inbounds i8, ptr %varargslots15, i64 16
+  store %any %23, ptr %ptradd16, align 16
+  %24 = call i64 @std.io.printfn(ptr %retparam17, ptr @.str.4, i64 6, ptr %varargslots15, i64 2)
+  %25 = load i64, ptr %.anon8, align 8
+  %addnuw18 = add nuw i64 %25, 1
+  store i64 %addnuw18, ptr %.anon8, align 8
+  br label %loop.cond9
+
+loop.exit19:                                      ; preds = %loop.cond9
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a20, ptr align 4 @.__const.5, i32 8, i1 false)
+  store i64 0, ptr %.anon21, align 8
+  br label %loop.cond22
+
+loop.cond22:                                      ; preds = %loop.body24, %loop.exit19
+  %26 = load i64, ptr %.anon21, align 8
+  %gt23 = icmp ugt i64 2, %26
+  br i1 %gt23, label %loop.body24, label %loop.exit32
+
+loop.body24:                                      ; preds = %loop.cond22
+  %27 = load i64, ptr %.anon21, align 8
+  store i64 %27, ptr %i25, align 8
+  %28 = load i64, ptr %.anon21, align 8
+  %ptroffset27 = getelementptr inbounds [4 x i8], ptr %a20, i64 %28
+  %29 = load i32, ptr %ptroffset27, align 4
+  store i32 %29, ptr %x26, align 4
+  %30 = insertvalue %any undef, ptr %i25, 0
+  %31 = insertvalue %any %30, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %31, ptr %varargslots28, align 16
+  %32 = insertvalue %any undef, ptr %x26, 0
+  %33 = insertvalue %any %32, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd29 = getelementptr inbounds i8, ptr %varargslots28, i64 16
+  store %any %33, ptr %ptradd29, align 16
+  %34 = call i64 @std.io.printfn(ptr %retparam30, ptr @.str.6, i64 6, ptr %varargslots28, i64 2)
+  %35 = load i64, ptr %.anon21, align 8
+  %addnuw31 = add nuw i64 %35, 1
+  store i64 %addnuw31, ptr %.anon21, align 8
+  br label %loop.cond22
+
+loop.exit32:                                      ; preds = %loop.cond22
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a33, ptr align 4 @.__const.7, i32 12, i1 false)
+  store i64 0, ptr %.anon34, align 8
+  br label %loop.cond35
+
+loop.cond35:                                      ; preds = %loop.body37, %loop.exit32
+  %36 = load i64, ptr %.anon34, align 8
+  %gt36 = icmp ugt i64 3, %36
+  br i1 %gt36, label %loop.body37, label %loop.exit45
+
+loop.body37:                                      ; preds = %loop.cond35
+  %37 = load i64, ptr %.anon34, align 8
+  store i64 %37, ptr %i38, align 8
+  %38 = load i64, ptr %.anon34, align 8
+  %ptroffset40 = getelementptr inbounds [4 x i8], ptr %a33, i64 %38
+  %39 = load i32, ptr %ptroffset40, align 4
+  store i32 %39, ptr %x39, align 4
+  %40 = insertvalue %any undef, ptr %i38, 0
+  %41 = insertvalue %any %40, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %41, ptr %varargslots41, align 16
+  %42 = insertvalue %any undef, ptr %x39, 0
+  %43 = insertvalue %any %42, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd42 = getelementptr inbounds i8, ptr %varargslots41, i64 16
+  store %any %43, ptr %ptradd42, align 16
+  %44 = call i64 @std.io.printfn(ptr %retparam43, ptr @.str.8, i64 8, ptr %varargslots41, i64 2)
+  %45 = load i64, ptr %.anon34, align 8
+  %addnuw44 = add nuw i64 %45, 1
+  store i64 %addnuw44, ptr %.anon34, align 8
+  br label %loop.cond35
+
+loop.exit45:                                      ; preds = %loop.cond35
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a46, ptr align 4 @.__const.9, i32 4, i1 false)
+  store i64 0, ptr %i47, align 8
+  %46 = load i32, ptr %a46, align 4
+  store i32 %46, ptr %x48, align 4
+  %47 = insertvalue %any undef, ptr %i47, 0
+  %48 = insertvalue %any %47, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %48, ptr %varargslots49, align 16
+  %49 = insertvalue %any undef, ptr %x48, 0
+  %50 = insertvalue %any %49, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd50 = getelementptr inbounds i8, ptr %varargslots49, i64 16
+  store %any %50, ptr %ptradd50, align 16
+  %51 = call i64 @std.io.printfn(ptr %retparam51, ptr @.str.10, i64 8, ptr %varargslots49, i64 2)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %a52, ptr align 4 @.__const.11, i32 8, i1 false)
+  store i64 0, ptr %.anon53, align 8
+  br label %loop.cond54
+
+loop.cond54:                                      ; preds = %loop.body56, %loop.exit45
+  %52 = load i64, ptr %.anon53, align 8
+  %gt55 = icmp ugt i64 2, %52
+  br i1 %gt55, label %loop.body56, label %loop.exit64
+
+loop.body56:                                      ; preds = %loop.cond54
+  %53 = load i64, ptr %.anon53, align 8
+  store i64 %53, ptr %i57, align 8
+  %54 = load i64, ptr %.anon53, align 8
+  %ptroffset59 = getelementptr inbounds [4 x i8], ptr %a52, i64 %54
+  %55 = load i32, ptr %ptroffset59, align 4
+  store i32 %55, ptr %x58, align 4
+  %56 = insertvalue %any undef, ptr %i57, 0
+  %57 = insertvalue %any %56, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %57, ptr %varargslots60, align 16
+  %58 = insertvalue %any undef, ptr %x58, 0
+  %59 = insertvalue %any %58, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd61 = getelementptr inbounds i8, ptr %varargslots60, i64 16
+  store %any %59, ptr %ptradd61, align 16
+  %60 = call i64 @std.io.printfn(ptr %retparam62, ptr @.str.12, i64 8, ptr %varargslots60, i64 2)
+  %61 = load i64, ptr %.anon53, align 8
+  %addnuw63 = add nuw i64 %61, 1
+  store i64 %addnuw63, ptr %.anon53, align 8
+  br label %loop.cond54
+
+loop.exit64:                                      ; preds = %loop.cond54
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %a65, ptr align 16 @.__const.13, i32 20, i1 false)
+  store i64 0, ptr %.anon66, align 8
+  br label %loop.cond67
+
+loop.cond67:                                      ; preds = %loop.body69, %loop.exit64
+  %62 = load i64, ptr %.anon66, align 8
+  %gt68 = icmp ugt i64 5, %62
+  br i1 %gt68, label %loop.body69, label %loop.exit77
+
+loop.body69:                                      ; preds = %loop.cond67
+  %63 = load i64, ptr %.anon66, align 8
+  store i64 %63, ptr %i70, align 8
+  %64 = load i64, ptr %.anon66, align 8
+  %ptroffset72 = getelementptr inbounds [4 x i8], ptr %a65, i64 %64
+  %65 = load i32, ptr %ptroffset72, align 4
+  store i32 %65, ptr %x71, align 4
+  %66 = insertvalue %any undef, ptr %i70, 0
+  %67 = insertvalue %any %66, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %67, ptr %varargslots73, align 16
+  %68 = insertvalue %any undef, ptr %x71, 0
+  %69 = insertvalue %any %68, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd74 = getelementptr inbounds i8, ptr %varargslots73, i64 16
+  store %any %69, ptr %ptradd74, align 16
+  %70 = call i64 @std.io.printfn(ptr %retparam75, ptr @.str.14, i64 8, ptr %varargslots73, i64 2)
+  %71 = load i64, ptr %.anon66, align 8
+  %addnuw76 = add nuw i64 %71, 1
+  store i64 %addnuw76, ptr %.anon66, align 8
+  br label %loop.cond67
+
+loop.exit77:                                      ; preds = %loop.cond67
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %a78, ptr align 16 @.__const.15, i32 32, i1 false)
+  store i64 0, ptr %.anon79, align 8
+  br label %loop.cond80
+
+loop.cond80:                                      ; preds = %loop.body82, %loop.exit77
+  %72 = load i64, ptr %.anon79, align 8
+  %gt81 = icmp ugt i64 8, %72
+  br i1 %gt81, label %loop.body82, label %loop.exit90
+
+loop.body82:                                      ; preds = %loop.cond80
+  %73 = load i64, ptr %.anon79, align 8
+  store i64 %73, ptr %i83, align 8
+  %74 = load i64, ptr %.anon79, align 8
+  %ptroffset85 = getelementptr inbounds [4 x i8], ptr %a78, i64 %74
+  %75 = load i32, ptr %ptroffset85, align 4
+  store i32 %75, ptr %x84, align 4
+  %76 = insertvalue %any undef, ptr %i83, 0
+  %77 = insertvalue %any %76, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %77, ptr %varargslots86, align 16
+  %78 = insertvalue %any undef, ptr %x84, 0
+  %79 = insertvalue %any %78, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd87 = getelementptr inbounds i8, ptr %varargslots86, i64 16
+  store %any %79, ptr %ptradd87, align 16
+  %80 = call i64 @std.io.printfn(ptr %retparam88, ptr @.str.16, i64 8, ptr %varargslots86, i64 2)
+  %81 = load i64, ptr %.anon79, align 8
+  %addnuw89 = add nuw i64 %81, 1
+  store i64 %addnuw89, ptr %.anon79, align 8
+  br label %loop.cond80
+
+loop.exit90:                                      ; preds = %loop.cond80
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %b, ptr align 16 @.__const.17, i32 28, i1 false)
+  store i64 0, ptr %.anon91, align 8
+  br label %loop.cond92
+
+loop.cond92:                                      ; preds = %loop.body94, %loop.exit90
+  %82 = load i64, ptr %.anon91, align 8
+  %gt93 = icmp ugt i64 7, %82
+  br i1 %gt93, label %loop.body94, label %loop.exit102
+
+loop.body94:                                      ; preds = %loop.cond92
+  %83 = load i64, ptr %.anon91, align 8
+  store i64 %83, ptr %i95, align 8
+  %84 = load i64, ptr %.anon91, align 8
+  %ptroffset97 = getelementptr inbounds [4 x i8], ptr %b, i64 %84
+  %85 = load i32, ptr %ptroffset97, align 4
+  store i32 %85, ptr %x96, align 4
+  %86 = insertvalue %any undef, ptr %i95, 0
+  %87 = insertvalue %any %86, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %87, ptr %varargslots98, align 16
+  %88 = insertvalue %any undef, ptr %x96, 0
+  %89 = insertvalue %any %88, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd99 = getelementptr inbounds i8, ptr %varargslots98, i64 16
+  store %any %89, ptr %ptradd99, align 16
+  %90 = call i64 @std.io.printfn(ptr %retparam100, ptr @.str.18, i64 8, ptr %varargslots98, i64 2)
+  %91 = load i64, ptr %.anon91, align 8
+  %addnuw101 = add nuw i64 %91, 1
+  store i64 %addnuw101, ptr %.anon91, align 8
+  br label %loop.cond92
+
+loop.exit102:                                     ; preds = %loop.cond92
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %c, ptr align 16 @.__const.19, i32 32, i1 false)
+  store i64 0, ptr %.anon103, align 8
+  br label %loop.cond104
+
+loop.cond104:                                     ; preds = %loop.body106, %loop.exit102
+  %92 = load i64, ptr %.anon103, align 8
+  %gt105 = icmp ugt i64 8, %92
+  br i1 %gt105, label %loop.body106, label %loop.exit114
+
+loop.body106:                                     ; preds = %loop.cond104
+  %93 = load i64, ptr %.anon103, align 8
+  store i64 %93, ptr %i107, align 8
+  %94 = load i64, ptr %.anon103, align 8
+  %ptroffset109 = getelementptr inbounds [4 x i8], ptr %c, i64 %94
+  %95 = load i32, ptr %ptroffset109, align 4
+  store i32 %95, ptr %x108, align 4
+  %96 = insertvalue %any undef, ptr %i107, 0
+  %97 = insertvalue %any %96, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %97, ptr %varargslots110, align 16
+  %98 = insertvalue %any undef, ptr %x108, 0
+  %99 = insertvalue %any %98, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd111 = getelementptr inbounds i8, ptr %varargslots110, i64 16
+  store %any %99, ptr %ptradd111, align 16
+  %100 = call i64 @std.io.printfn(ptr %retparam112, ptr @.str.20, i64 9, ptr %varargslots110, i64 2)
+  %101 = load i64, ptr %.anon103, align 8
+  %addnuw113 = add nuw i64 %101, 1
+  store i64 %addnuw113, ptr %.anon103, align 8
+  br label %loop.cond104
+
+loop.exit114:                                     ; preds = %loop.cond104
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %a115, ptr align 16 @.__const.21, i32 24, i1 false)
+  store i64 0, ptr %.anon116, align 8
+  br label %loop.cond117
+
+loop.cond117:                                     ; preds = %loop.body119, %loop.exit114
+  %102 = load i64, ptr %.anon116, align 8
+  %gt118 = icmp ugt i64 6, %102
+  br i1 %gt118, label %loop.body119, label %loop.exit127
+
+loop.body119:                                     ; preds = %loop.cond117
+  %103 = load i64, ptr %.anon116, align 8
+  store i64 %103, ptr %i120, align 8
+  %104 = load i64, ptr %.anon116, align 8
+  %ptroffset122 = getelementptr inbounds [4 x i8], ptr %a115, i64 %104
+  %105 = load i32, ptr %ptroffset122, align 4
+  store i32 %105, ptr %x121, align 4
+  %106 = insertvalue %any undef, ptr %i120, 0
+  %107 = insertvalue %any %106, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %107, ptr %varargslots123, align 16
+  %108 = insertvalue %any undef, ptr %x121, 0
+  %109 = insertvalue %any %108, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  %ptradd124 = getelementptr inbounds i8, ptr %varargslots123, i64 16
+  store %any %109, ptr %ptradd124, align 16
+  %110 = call i64 @std.io.printfn(ptr %retparam125, ptr @.str.22, i64 6, ptr %varargslots123, i64 2)
+  %111 = load i64, ptr %.anon116, align 8
+  %addnuw126 = add nuw i64 %111, 1
+  store i64 %addnuw126, ptr %.anon116, align 8
+  br label %loop.cond117
+
+loop.exit127:                                     ; preds = %loop.cond117
+  ret void
+}
diff --git a/test/test_suite7/macros/macro_with_body.c3t b/test/test_suite7/macros/macro_with_body.c3t
new file mode 100644
index 000000000..cb529d800
--- /dev/null
+++ b/test/test_suite7/macros/macro_with_body.c3t
@@ -0,0 +1,100 @@
+module withbody;
+
+
+extern fn int printf(char *, ...);
+
+struct Foo
+{
+    int x;
+}
+
+fn int Foo.mutate(Foo *foo)
+{
+    printf("Mutating\n");
+    return 10 * ++foo.x;
+}
+
+macro @macro_with_body(foo, #x; @body(x, y))
+{
+    #x = foo.x;
+    @body(foo.mutate(), #x);
+}
+
+macro @repeat(int times; @body(x))
+{
+    for (int i = 0; i < times; i++)
+    {
+       @body(i + 1);
+    }
+}
+
+fn void main()
+{
+    Foo f = { 33 };
+    int y;
+    @macro_with_body(f, y; int x, int dy)
+    {
+        printf("Got values %d, %d\n", x, dy);
+    };
+    @repeat(10; int loop)
+    {
+        printf("Repeat %d\n", loop);
+    };
+
+}
+
+/* #expect: withbody.ll
+
+define i32 @withbody.Foo.mutate(ptr %0) #0 {
+entry:
+  %1 = call i32 (ptr, ...) @printf(ptr @.str.2)
+  %2 = load i32, ptr %0, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %0, align 4
+  %mul = mul i32 10, %add
+  ret i32 %mul
+}
+
+define void @withbody.main() #0 {
+entry:
+  %f = alloca %Foo, align 4
+  %y = alloca i32, align 4
+  %foo = alloca %Foo, align 4
+  %x = alloca i32, align 4
+  %dy = alloca i32, align 4
+  %i = alloca i32, align 4
+  %loop = alloca i32, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %f, ptr align 4 @.__const, i32 4, i1 false)
+  store i32 0, ptr %y, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %foo, ptr align 4 %f, i32 4, i1 false)
+  %0 = load i32, ptr %foo, align 4
+  store i32 %0, ptr %y, align 4
+  %1 = call i32 @withbody.Foo.mutate(ptr %foo)
+  store i32 %1, ptr %x, align 4
+  %2 = load i32, ptr %y, align 4
+  store i32 %2, ptr %dy, align 4
+  %3 = load i32, ptr %x, align 4
+  %4 = load i32, ptr %dy, align 4
+  %5 = call i32 (ptr, ...) @printf(ptr @.str, i32 %3, i32 %4)
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %6 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %6, 10
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %7 = load i32, ptr %i, align 4
+  %add = add i32 %7, 1
+  store i32 %add, ptr %loop, align 4
+  %8 = load i32, ptr %loop, align 4
+  %9 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %8)
+  %10 = load i32, ptr %i, align 4
+  %add1 = add i32 %10, 1
+  store i32 %add1, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
diff --git a/test/test_suite7/macros/macro_with_body_err.c3 b/test/test_suite7/macros/macro_with_body_err.c3
new file mode 100644
index 000000000..841cc1b9e
--- /dev/null
+++ b/test/test_suite7/macros/macro_with_body_err.c3
@@ -0,0 +1,33 @@
+module withbody;
+
+
+extern fn int printf(char *, ...);
+
+struct Foo
+{
+    int x;
+}
+
+fn int Foo.mutate(Foo *foo)
+{
+    printf("Mutating\n");
+    return 10 * ++foo.x;
+}
+
+macro @macro_with_body(foo, #x; @body(x, y))
+{
+    #x = foo.x;
+    @body(foo.mutate(), &#x); // #error: 'int*' to 'int'
+}
+
+
+fn void main()
+{
+    Foo f = { 33 };
+    int y;
+    @macro_with_body(f, y; int x, int dy)
+    {
+        printf("Got values %d, %d\n", x, dy);
+    };
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/modify_ct_param.c3 b/test/test_suite7/macros/modify_ct_param.c3
new file mode 100644
index 000000000..80219fe80
--- /dev/null
+++ b/test/test_suite7/macros/modify_ct_param.c3
@@ -0,0 +1,13 @@
+module test;
+
+macro test($baz, $Type)
+{
+	$baz = 123;
+	$Type = int;
+}
+fn void main()
+{
+	var $foo = 1;
+	$foo = 4;
+	test(4, double);
+}
diff --git a/test/test_suite7/macros/no_body.c3 b/test/test_suite7/macros/no_body.c3
new file mode 100644
index 000000000..6a71cf27f
--- /dev/null
+++ b/test/test_suite7/macros/no_body.c3
@@ -0,0 +1,50 @@
+module test;
+
+extern fn int printf(char *, ...);
+
+macro @foo(x; @body(y))
+{
+    @body(x);
+}
+
+fn void test()
+{
+    @foo(10); // #error: Expected call to have a trailing statement, did you forget to add it?
+}
+
+fn void test3()
+{
+    @foo(10) // #error: Not enough parameters
+    {
+    };
+}
+
+fn void test5()
+{
+    @foo(10; int a, int b) // #error: Too many parameters for the macro body, expected
+    {
+    };
+}
+macro foo_no(x)
+{
+    return x;
+}
+
+fn void test2()
+{
+    foo_no(10) // #error: This macro does not support trailing statements
+    {
+        printf("foek");
+    };
+}
+
+macro foo2(x)
+{
+    @body(x); // #error: '@body' could not be found, did you spell it right?
+}
+
+fn void test4()
+{
+    foo2(10);
+}
+
diff --git a/test/test_suite7/macros/ref_macro_method.c3 b/test/test_suite7/macros/ref_macro_method.c3
new file mode 100644
index 000000000..7cd42e8f6
--- /dev/null
+++ b/test/test_suite7/macros/ref_macro_method.c3
@@ -0,0 +1,26 @@
+import std::io;
+
+struct MyStruct
+{
+  DString* dyn;
+}
+
+fn void main()
+{
+  @pool()
+  {
+    usz values_len = 10;
+
+    MyStruct ms = {
+      .dyn = mem::temp_new_array(DString, values_len).ptr,
+    };
+
+    for (usz i; i < values_len; ++i)
+    {
+      ms.dyn[i].temp_init();
+    }
+
+    ms.dyn[0].append_chars("sad");
+    ms.dyn[0].append("sad");
+  };
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/ref_vector.c3t b/test/test_suite7/macros/ref_vector.c3t
new file mode 100644
index 000000000..2dab88a6c
--- /dev/null
+++ b/test/test_suite7/macros/ref_vector.c3t
@@ -0,0 +1,53 @@
+// #target: macos-x64
+module test;
+
+fn int main() {
+  int[<4>] vec;
+  @foo(vec[0]);
+  @foo(vec[2]);
+  assert(vec[0] == 1);
+  assert(vec[2] == 1);
+  return 1;
+}
+
+macro @foo(#ref) {
+  #ref += 1;
+}
+
+/* #expect: test.ll
+
+
+define i32 @main() #0 {
+entry:
+  %vec = alloca <4 x i32>, align 16
+  store <4 x i32> zeroinitializer, ptr %vec, align 16
+  %0 = load <4 x i32>, ptr %vec, align 16
+  %elem = extractelement <4 x i32> %0, i64 0
+  %add = add i32 %elem, 1
+  %elemset = insertelement <4 x i32> %0, i32 %add, i64 0
+  store <4 x i32> %elemset, ptr %vec, align 16
+  %1 = load <4 x i32>, ptr %vec, align 16
+  %elem1 = extractelement <4 x i32> %1, i64 2
+  %add2 = add i32 %elem1, 1
+  %elemset3 = insertelement <4 x i32> %1, i32 %add2, i64 2
+  store <4 x i32> %elemset3, ptr %vec, align 16
+  %2 = load <4 x i32>, ptr %vec, align 16
+  %3 = extractelement <4 x i32> %2, i64 0
+  %eq = icmp eq i32 %3, 1
+  call void @llvm.assume(i1 %eq)
+  %4 = load <4 x i32>, ptr %vec, align 16
+  %5 = extractelement <4 x i32> %4, i64 2
+  %eq4 = icmp eq i32 %5, 1
+  call void @llvm.assume(i1 %eq4)
+  ret i32 1
+}
+
+declare void @llvm.assume(i1 noundef) #1
+attributes #0 = { nounwind uwtable "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
+!llvm.module.flags = !{!0, !1, !2, !3, !4, !5}
+!0 = !{i32 2, !"Dwarf Version", i32 4}
+!1 = !{i32 2, !"Debug Info Version", i32 3}
+!2 = !{i32 2, !"wchar_size", i32 4}
+!3 = !{i32 4, !"PIC Level", i32 2}
+!4 = !{i32 1, !"uwtable", i32 2}
+!5 = !{i32 2, !"frame-pointer", i32 2}
\ No newline at end of file
diff --git a/test/test_suite7/macros/short_trailing_body.c3t b/test/test_suite7/macros/short_trailing_body.c3t
new file mode 100644
index 000000000..88e69c7b8
--- /dev/null
+++ b/test/test_suite7/macros/short_trailing_body.c3t
@@ -0,0 +1,122 @@
+// #target: macos-x64
+module test;
+import std;
+
+fn int foo(int x) => @pool()
+{
+	String s = string::tformat("%d", x);
+	io::printn(s);
+	return 2;
+}
+
+fn void main()
+{
+	foo(3);
+}
+
+/* #expect: test.ll
+
+entry:
+  %current = alloca ptr, align 8
+  %mark = alloca i64, align 8
+  %s = alloca %"char[]", align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr = alloca i32, align 4
+  %result = alloca %"char[]", align 8
+  %x = alloca %"char[]", align 8
+  %x1 = alloca %"char[]", align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca %"char[]", align 8
+  %retparam = alloca i64, align 8
+  %error_var5 = alloca i64, align 8
+  %error_var11 = alloca i64, align 8
+  %1 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  %i2nb = icmp eq ptr %1, null
+  br i1 %i2nb, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  call void @std.core.mem.allocator.init_default_temp_allocators()
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  %2 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  store ptr %2, ptr %current, align 8
+  %3 = load ptr, ptr %current, align 8
+  %ptradd = getelementptr inbounds i8, ptr %3, i64 24
+  %4 = load i64, ptr %ptradd, align 8
+  store i64 %4, ptr %mark, align 8
+  store i32 %0, ptr %taddr, align 4
+  %5 = insertvalue %any undef, ptr %taddr, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %6, ptr %varargslots, align 16
+  %7 = call { ptr, i64 } @std.core.string.tformat(ptr @.str, i64 2, ptr %varargslots, i64 1)
+  store { ptr, i64 } %7, ptr %result, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %s, ptr align 8 %result, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x, ptr align 8 %s, i32 16, i1 false)
+  %8 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x1, ptr align 8 %x, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x2, ptr align 8 %x1, i32 16, i1 false)
+  %lo = load ptr, ptr %x2, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %x2, i64 8
+  %hi = load i64, ptr %ptradd4, align 8
+  %9 = call i64 @std.io.File.write(ptr %retparam, ptr %8, ptr %lo, i64 %hi)
+  %not_err = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %10, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %if.exit
+  store i64 %9, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %if.exit
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %11 = load i64, ptr %retparam, align 8
+  store i64 %11, ptr %len, align 8
+  %12 = call i64 @std.io.File.write_byte(ptr %8, i8 zeroext 10)
+  %not_err6 = icmp eq i64 %12, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err6, i1 true)
+  br i1 %13, label %after_check8, label %assign_optional7
+
+assign_optional7:                                 ; preds = %noerr_block
+  store i64 %12, ptr %error_var5, align 8
+  br label %guard_block9
+
+after_check8:                                     ; preds = %noerr_block
+  br label %noerr_block10
+
+guard_block9:                                     ; preds = %assign_optional7
+  br label %voiderr
+
+noerr_block10:                                    ; preds = %after_check8
+  %14 = call i64 @std.io.File.flush(ptr %8)
+  %not_err12 = icmp eq i64 %14, 0
+  %15 = call i1 @llvm.expect.i1(i1 %not_err12, i1 true)
+  br i1 %15, label %after_check14, label %assign_optional13
+
+assign_optional13:                                ; preds = %noerr_block10
+  store i64 %14, ptr %error_var11, align 8
+  br label %guard_block15
+
+after_check14:                                    ; preds = %noerr_block10
+  br label %noerr_block16
+
+guard_block15:                                    ; preds = %assign_optional13
+  br label %voiderr
+
+noerr_block16:                                    ; preds = %after_check14
+  %16 = load i64, ptr %len, align 8
+  %add = add i64 %16, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block16, %guard_block15, %guard_block9, %guard_block
+  %17 = load ptr, ptr %current, align 8
+  %18 = load i64, ptr %mark, align 8
+  call void @std.core.mem.allocator.TempAllocator.reset(ptr %17, i64 %18)
+  ret i32 2
+}
diff --git a/test/test_suite7/macros/trailing_body_const.c3t b/test/test_suite7/macros/trailing_body_const.c3t
new file mode 100644
index 000000000..acc6e66b1
--- /dev/null
+++ b/test/test_suite7/macros/trailing_body_const.c3t
@@ -0,0 +1,31 @@
+// #target: macos-x64
+module test;
+import std::io;
+macro @test(;@body($val))
+{
+  @body(1);
+  @body(2);
+}
+
+fn void main()
+{
+	int a;
+  @test(;int $num)
+  {
+    a += $num;
+  };
+}
+
+/* #expect: test.ll
+
+entry:
+  %a = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  %0 = load i32, ptr %a, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr %a, align 4
+  %1 = load i32, ptr %a, align 4
+  %add1 = add i32 %1, 2
+  store i32 %add1, ptr %a, align 4
+  ret void
+}
diff --git a/test/test_suite7/macros/trailing_body_type.c3 b/test/test_suite7/macros/trailing_body_type.c3
new file mode 100644
index 000000000..b73746620
--- /dev/null
+++ b/test/test_suite7/macros/trailing_body_type.c3
@@ -0,0 +1,10 @@
+macro @test(int x = 1; @body())
+{
+	if (x > 0) @body();
+	return x;
+}
+
+fn int foo(int x) => @test(x) // #error: The macro itself returns 'int' here
+{
+	return 2;
+}
diff --git a/test/test_suite7/macros/type_params.c3t b/test/test_suite7/macros/type_params.c3t
new file mode 100644
index 000000000..df1aaad78
--- /dev/null
+++ b/test/test_suite7/macros/type_params.c3t
@@ -0,0 +1,42 @@
+// #target: macos-x64
+macro foo($Foo)
+{
+    $Foo a;
+    return a;
+}
+
+def Bar = short;
+fn void test()
+{
+    int x = foo(int);
+    var $Foo = double;
+    double d = foo($Foo);
+    double d2 = foo($typeof(d));
+    short z = foo(Bar);
+}
+
+
+/* #expect: type_params.ll
+
+  %x = alloca i32, align 4
+  %a = alloca i32, align 4
+  %d = alloca double, align 8
+  %a1 = alloca double, align 8
+  %d2 = alloca double, align 8
+  %a2 = alloca double, align 8
+  %z = alloca i16, align 2
+  %a3 = alloca i16, align 2
+  store i32 0, ptr %a, align 4
+  %0 = load i32, ptr %a, align 4
+  store i32 %0, ptr %x, align 4
+  store double 0.000000e+00, ptr %a1, align 8
+  %1 = load double, ptr %a1, align 8
+  store double %1, ptr %d, align 8
+  store double 0.000000e+00, ptr %a2, align 8
+  %2 = load double, ptr %a2, align 8
+  store double %2, ptr %d2, align 8
+  store i16 0, ptr %a3, align 2
+  %3 = load i16, ptr %a3, align 2
+  store i16 %3, ptr %z, align 2
+  ret void
+}
diff --git a/test/test_suite7/macros/typed_hash_access.c3 b/test/test_suite7/macros/typed_hash_access.c3
new file mode 100644
index 000000000..a0cf3291e
--- /dev/null
+++ b/test/test_suite7/macros/typed_hash_access.c3
@@ -0,0 +1,11 @@
+
+macro void @foo(int #a)
+{
+	var x = float.#a; // #error: cannot already be resolved
+}
+
+fn void main()
+{
+	int inf;
+	@foo(inf);
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/unifying_implicit_void.c3t b/test/test_suite7/macros/unifying_implicit_void.c3t
new file mode 100644
index 000000000..4c815c827
--- /dev/null
+++ b/test/test_suite7/macros/unifying_implicit_void.c3t
@@ -0,0 +1,115 @@
+// #target: macos-x64
+module oups;
+import std::io;
+
+fn void main()
+{
+	ByteReader r;
+	InStream s = &r;
+	s.foo()!!;
+}
+
+macro InStream.foo(&self)
+{
+	char! c = self.read_byte();
+	if (catch err = c)
+	{
+		return err?;
+	}
+	return;
+}
+
+
+/* #expect: oups.ll
+
+define void @oups.main() #0 {
+entry:
+  %r = alloca %ByteReader, align 8
+  %s = alloca %any, align 8
+  %error_var = alloca i64, align 8
+  %c = alloca i8, align 1
+  %c.f = alloca i64, align 8
+  %.inlinecache = alloca ptr, align 8
+  %.cachedtype = alloca ptr, align 8
+  %retparam = alloca i8, align 1
+  %err = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %indirectarg = alloca %"any[]", align 8
+  store ptr null, ptr %.cachedtype, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %r, i8 0, i64 24, i1 false)
+  %0 = insertvalue %any undef, ptr %r, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.std.io.ByteReader" to i64), 1
+  store %any %1, ptr %s, align 8
+  %ptradd = getelementptr inbounds i8, ptr %s, i64 8
+  %2 = load i64, ptr %ptradd, align 8
+  %3 = inttoptr i64 %2 to ptr
+  %type = load ptr, ptr %.cachedtype, align 8
+  %4 = icmp eq ptr %3, %type
+  br i1 %4, label %cache_hit, label %cache_miss
+cache_miss:                                       ; preds = %entry
+  %ptradd1 = getelementptr inbounds i8, ptr %3, i64 16
+  %5 = load ptr, ptr %ptradd1, align 8
+  %6 = call ptr @.dyn_search(ptr %5, ptr @"$sel.read_byte")
+  store ptr %6, ptr %.inlinecache, align 8
+  store ptr %3, ptr %.cachedtype, align 8
+  br label %7
+cache_hit:                                        ; preds = %entry
+  %cache_hit_fn = load ptr, ptr %.inlinecache, align 8
+  br label %7
+7:                                                ; preds = %cache_hit, %cache_miss
+  %fn_phi = phi ptr [ %cache_hit_fn, %cache_hit ], [ %6, %cache_miss ]
+  %8 = icmp eq ptr %fn_phi, null
+  br i1 %8, label %missing_function, label %match
+missing_function:                                 ; preds = %7
+  %9 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %9(ptr @.panic_msg, i64 46, ptr @.file, i64 25, ptr @.func, i64 4, i32 13)
+  unreachable
+match:                                            ; preds = %7
+  %10 = load ptr, ptr %s, align 8
+  %11 = call i64 %fn_phi(ptr %retparam, ptr %10)
+  %not_err = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %12, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %match
+  store i64 %11, ptr %c.f, align 8
+  br label %after_assign
+after_check:                                      ; preds = %match
+  %13 = load i8, ptr %retparam, align 1
+  store i8 %13, ptr %c, align 1
+  store i64 0, ptr %c.f, align 8
+  br label %after_assign
+after_assign:                                     ; preds = %after_check, %assign_optional
+  br label %testblock
+testblock:                                        ; preds = %after_assign
+  %optval = load i64, ptr %c.f, align 8
+  %not_err2 = icmp eq i64 %optval, 0
+  %14 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %14, label %after_check4, label %assign_optional3
+assign_optional3:                                 ; preds = %testblock
+  store i64 %optval, ptr %err, align 8
+  br label %end_block
+after_check4:                                     ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+end_block:                                        ; preds = %after_check4, %assign_optional3
+  %15 = load i64, ptr %err, align 8
+  %i2b = icmp ne i64 %15, 0
+  br i1 %i2b, label %if.then, label %if.exit
+if.then:                                          ; preds = %end_block
+  %16 = load i64, ptr %err, align 8
+  store i64 %16, ptr %error_var, align 8
+  br label %panic_block
+if.exit:                                          ; preds = %end_block
+  br label %noerr_block
+panic_block:                                      ; preds = %if.then
+  %17 = insertvalue %any undef, ptr %error_var, 0
+  %18 = insertvalue %any %17, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %18, ptr %varargslots, align 16
+  %19 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %19, i64 1, 1
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg.1, i64 36, ptr @.file, i64 25, ptr @.func, i64 4, i32 8, ptr byval(%"any[]") align 8 %indirectarg)
+  unreachable
+noerr_block:                                      ; preds = %if.exit
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/macros/userland_bitcast.c3t b/test/test_suite7/macros/userland_bitcast.c3t
new file mode 100644
index 000000000..b919b3d45
--- /dev/null
+++ b/test/test_suite7/macros/userland_bitcast.c3t
@@ -0,0 +1,331 @@
+// #target: macos-x64
+
+macro testbitcast(expr, $Type)
+{
+    $assert $sizeof(expr) == $Type.sizeof : "Cannot bitcast between types of different size.";
+    $Type x @noinit;
+    var $size = (usz)($sizeof(expr));
+
+	$switch
+	    $case $alignof(expr) >= 8 && $Type.alignof >= 8:
+	        ulong *b = (ulong*)(&expr);
+	        ulong *to = (ulong*)(&x);
+	        for (usz i = 0; i < $size; i += 8)
+	        {
+	            to[i] = b[i];
+	        }
+	    $case $alignof(expr) >= 4 && $Type.alignof >= 4:
+	        uint* b = (uint*)(&expr);
+	        uint* to = (uint*)(&x);
+	        for (usz i = 0; i < $size; i += 4)
+	        {
+	            to[i] = b[i];
+	        }
+	    $case $alignof(expr) >= 2 && $Type.alignof >= 2:
+	        ushort* b = (ushort*)(&expr);
+	        ushort* to = (ushort*)(&x);
+	        for (usz i = 0; i < $size; i += 2)
+	        {
+	            to[i] = b[i];
+	        }
+	    $default:
+	        char* b = (char*)(&expr);
+	        char* to = (char*)(&x);
+	        for (usz i = 0; i < $size; i++)
+	        {
+	            to[i] = b[i];
+	        }
+	$endswitch
+    return x;
+}
+
+extern fn void printf(char*, ...);
+
+struct Foo
+{
+    short a;
+    char b;
+    char c;
+    short d;
+    short e;
+}
+
+fn ulong testFoo(short x)
+{
+    Foo z;
+    z.a = x;
+    return testbitcast(z, ulong);
+}
+
+fn char[4] test(float x)
+{
+    return testbitcast(x, char[4]);
+}
+
+fn void main()
+{
+    float f = 12.353;
+    int i = testbitcast(f, int);
+    float f2 = testbitcast(i, float);
+    printf("%f => %d => %f\n", f, i, f2);
+    double d = 12.353e267;
+    ulong l = testbitcast(d, ulong);
+    double d2 = testbitcast(d, double);
+    printf("%e => %llu => %e\n", d, l, d2);
+
+}
+
+/* #expect: userland_bitcast.ll
+
+%Foo = type { i16, i8, i8, i16, i16 }
+
+@"$ct.userland_bitcast.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 5, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [16 x i8] c"%f => %d => %f\0A\00", align 1
+@.str.1 = private unnamed_addr constant [18 x i8] c"%e => %llu => %e\0A\00", align 1
+
+define i64 @userland_bitcast.testFoo(i16 signext %0) #0 {
+entry:
+  %z = alloca %Foo, align 2
+  %expr = alloca %Foo, align 2
+  %x = alloca i64, align 8
+  %b = alloca ptr, align 8
+  %to = alloca ptr, align 8
+  %i = alloca i64, align 8
+  store i16 0, ptr %z, align 2
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 2
+  store i8 0, ptr %ptradd, align 2
+  %ptradd1 = getelementptr inbounds i8, ptr %z, i64 3
+  store i8 0, ptr %ptradd1, align 1
+  %ptradd2 = getelementptr inbounds i8, ptr %z, i64 4
+  store i16 0, ptr %ptradd2, align 2
+  %ptradd3 = getelementptr inbounds i8, ptr %z, i64 6
+  store i16 0, ptr %ptradd3, align 2
+  store i16 %0, ptr %z, align 2
+  call void @llvm.memcpy.p0.p0.i32(ptr align 2 %expr, ptr align 2 %z, i32 8, i1 false)
+  store ptr %expr, ptr %b, align 8
+  store ptr %x, ptr %to, align 8
+  store i64 0, ptr %i, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i64, ptr %i, align 8
+  %lt = icmp ult i64 %1, 8
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load ptr, ptr %to, align 8
+  %3 = load i64, ptr %i, align 8
+  %ptroffset = getelementptr inbounds [2 x i8], ptr %2, i64 %3
+  %4 = load ptr, ptr %b, align 8
+  %5 = load i64, ptr %i, align 8
+  %ptroffset4 = getelementptr inbounds [2 x i8], ptr %4, i64 %5
+  %6 = load i16, ptr %ptroffset4, align 2
+  store i16 %6, ptr %ptroffset, align 2
+  %7 = load i64, ptr %i, align 8
+  %add = add i64 %7, 2
+  store i64 %add, ptr %i, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %8 = load i64, ptr %x, align 8
+  ret i64 %8
+}
+
+; Function Attrs:
+define i32 @userland_bitcast.test(float %0) #0 {
+entry:
+  %expr = alloca float, align 4
+  %x = alloca [4 x i8], align 1
+  %b = alloca ptr, align 8
+  %to = alloca ptr, align 8
+  %i = alloca i64, align 8
+  store float %0, ptr %expr, align 4
+  store ptr %expr, ptr %b, align 8
+  store ptr %x, ptr %to, align 8
+  store i64 0, ptr %i, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i64, ptr %i, align 8
+  %lt = icmp ult i64 %1, 4
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load ptr, ptr %to, align 8
+  %3 = load i64, ptr %i, align 8
+  %ptradd = getelementptr inbounds i8, ptr %2, i64 %3
+  %4 = load ptr, ptr %b, align 8
+  %5 = load i64, ptr %i, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %4, i64 %5
+  %6 = load i8, ptr %ptradd1, align 1
+  store i8 %6, ptr %ptradd, align 1
+  %7 = load i64, ptr %i, align 8
+  %add = add i64 %7, 1
+  store i64 %add, ptr %i, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %8 = load i32, ptr %x, align 1
+  ret i32 %8
+}
+
+; Function Attrs:
+define void @userland_bitcast.main() #0 {
+entry:
+  %f = alloca float, align 4
+  %i = alloca i32, align 4
+  %expr = alloca float, align 4
+  %x = alloca i32, align 4
+  %b = alloca ptr, align 8
+  %to = alloca ptr, align 8
+  %i1 = alloca i64, align 8
+  %f2 = alloca float, align 4
+  %expr3 = alloca i32, align 4
+  %x4 = alloca float, align 4
+  %b5 = alloca ptr, align 8
+  %to6 = alloca ptr, align 8
+  %i7 = alloca i64, align 8
+  %d = alloca double, align 8
+  %l = alloca i64, align 8
+  %expr16 = alloca double, align 8
+  %x17 = alloca i64, align 8
+  %b18 = alloca ptr, align 8
+  %to19 = alloca ptr, align 8
+  %i20 = alloca i64, align 8
+  %d2 = alloca double, align 8
+  %expr28 = alloca double, align 8
+  %x29 = alloca double, align 8
+  %b30 = alloca ptr, align 8
+  %to31 = alloca ptr, align 8
+  %i32 = alloca i64, align 8
+  store float 0x4028B4BC60000000, ptr %f, align 4
+  %0 = load float, ptr %f, align 4
+  store float %0, ptr %expr, align 4
+  store ptr %expr, ptr %b, align 8
+  store ptr %x, ptr %to, align 8
+  store i64 0, ptr %i1, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i64, ptr %i1, align 8
+  %lt = icmp ult i64 %1, 4
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load ptr, ptr %to, align 8
+  %3 = load i64, ptr %i1, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %2, i64 %3
+  %4 = load ptr, ptr %b, align 8
+  %5 = load i64, ptr %i1, align 8
+  %ptroffset2 = getelementptr inbounds [4 x i8], ptr %4, i64 %5
+  %6 = load i32, ptr %ptroffset2, align 4
+  store i32 %6, ptr %ptroffset, align 4
+  %7 = load i64, ptr %i1, align 8
+  %add = add i64 %7, 4
+  store i64 %add, ptr %i1, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %8 = load i32, ptr %x, align 4
+  store i32 %8, ptr %i, align 4
+  %9 = load i32, ptr %i, align 4
+  store i32 %9, ptr %expr3, align 4
+  store ptr %expr3, ptr %b5, align 8
+  store ptr %x4, ptr %to6, align 8
+  store i64 0, ptr %i7, align 8
+  br label %loop.cond8
+
+loop.cond8:                                       ; preds = %loop.body10, %loop.exit
+  %10 = load i64, ptr %i7, align 8
+  %lt9 = icmp ult i64 %10, 4
+  br i1 %lt9, label %loop.body10, label %loop.exit14
+
+loop.body10:                                      ; preds = %loop.cond8
+  %11 = load ptr, ptr %to6, align 8
+  %12 = load i64, ptr %i7, align 8
+  %ptroffset11 = getelementptr inbounds [4 x i8], ptr %11, i64 %12
+  %13 = load ptr, ptr %b5, align 8
+  %14 = load i64, ptr %i7, align 8
+  %ptroffset12 = getelementptr inbounds [4 x i8], ptr %13, i64 %14
+  %15 = load i32, ptr %ptroffset12, align 4
+  store i32 %15, ptr %ptroffset11, align 4
+  %16 = load i64, ptr %i7, align 8
+  %add13 = add i64 %16, 4
+  store i64 %add13, ptr %i7, align 8
+  br label %loop.cond8
+
+loop.exit14:                                      ; preds = %loop.cond8
+  %17 = load float, ptr %x4, align 4
+  store float %17, ptr %f2, align 4
+  %18 = load float, ptr %f, align 4
+  %fpfpext = fpext float %18 to double
+  %19 = load float, ptr %f2, align 4
+  %fpfpext15 = fpext float %19 to double
+  %20 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str, double %fpfpext, i32 %20, double %fpfpext15)
+  store double 1.235300e+268, ptr %d, align 8
+  %21 = load double, ptr %d, align 8
+  store double %21, ptr %expr16, align 8
+  store ptr %expr16, ptr %b18, align 8
+  store ptr %x17, ptr %to19, align 8
+  store i64 0, ptr %i20, align 8
+  br label %loop.cond21
+
+loop.cond21:                                      ; preds = %loop.body23, %loop.exit14
+  %22 = load i64, ptr %i20, align 8
+  %lt22 = icmp ult i64 %22, 8
+  br i1 %lt22, label %loop.body23, label %loop.exit27
+
+loop.body23:                                      ; preds = %loop.cond21
+  %23 = load ptr, ptr %to19, align 8
+  %24 = load i64, ptr %i20, align 8
+  %ptroffset24 = getelementptr inbounds [8 x i8], ptr %23, i64 %24
+  %25 = load ptr, ptr %b18, align 8
+  %26 = load i64, ptr %i20, align 8
+  %ptroffset25 = getelementptr inbounds [8 x i8], ptr %25, i64 %26
+  %27 = load i64, ptr %ptroffset25, align 8
+  store i64 %27, ptr %ptroffset24, align 8
+  %28 = load i64, ptr %i20, align 8
+  %add26 = add i64 %28, 8
+  store i64 %add26, ptr %i20, align 8
+  br label %loop.cond21
+
+loop.exit27:                                      ; preds = %loop.cond21
+  %29 = load i64, ptr %x17, align 8
+  store i64 %29, ptr %l, align 8
+  %30 = load double, ptr %d, align 8
+  store double %30, ptr %expr28, align 8
+  store ptr %expr28, ptr %b30, align 8
+  store ptr %x29, ptr %to31, align 8
+  store i64 0, ptr %i32, align 8
+  br label %loop.cond33
+
+loop.cond33:                                      ; preds = %loop.body35, %loop.exit27
+  %31 = load i64, ptr %i32, align 8
+  %lt34 = icmp ult i64 %31, 8
+  br i1 %lt34, label %loop.body35, label %loop.exit39
+
+loop.body35:                                      ; preds = %loop.cond33
+  %32 = load ptr, ptr %to31, align 8
+  %33 = load i64, ptr %i32, align 8
+  %ptroffset36 = getelementptr inbounds [8 x i8], ptr %32, i64 %33
+  %34 = load ptr, ptr %b30, align 8
+  %35 = load i64, ptr %i32, align 8
+  %ptroffset37 = getelementptr inbounds [8 x i8], ptr %34, i64 %35
+  %36 = load i64, ptr %ptroffset37, align 8
+  store i64 %36, ptr %ptroffset36, align 8
+  %37 = load i64, ptr %i32, align 8
+  %add38 = add i64 %37, 8
+  store i64 %add38, ptr %i32, align 8
+  br label %loop.cond33
+
+loop.exit39:                                      ; preds = %loop.cond33
+  %38 = load double, ptr %x29, align 8
+  store double %38, ptr %d2, align 8
+  %39 = load double, ptr %d, align 8
+  %40 = load i64, ptr %l, align 8
+  %41 = load double, ptr %d2, align 8
+  call void (ptr, ...) @printf(ptr @.str.1, double %39, i64 %40, double %41)
+  ret void
+}
+
diff --git a/test/test_suite7/macros/vasplat_function_call.c3 b/test/test_suite7/macros/vasplat_function_call.c3
new file mode 100644
index 000000000..62e653473
--- /dev/null
+++ b/test/test_suite7/macros/vasplat_function_call.c3
@@ -0,0 +1,18 @@
+import std;
+
+def IList = List{int};
+fn IList IList.new() @operator(construct)
+{
+	IList l;
+	l.init(mem, $vasplat); // #error: can only be used inside
+	return l;
+}
+
+
+fn void main()
+{
+	IList a = IList.new(123, 123, 123, 123, 123, 123, 123, 134);
+	a.push(567);
+
+	io::printfn("%s", a[0]);
+}
diff --git a/test/test_suite7/methods/access.c3 b/test/test_suite7/methods/access.c3
new file mode 100644
index 000000000..42cf06d83
--- /dev/null
+++ b/test/test_suite7/methods/access.c3
@@ -0,0 +1,37 @@
+extern fn void printf(...);
+
+struct An1
+{
+    An3 x;
+}
+
+struct An3
+{
+    An2 y;
+}
+
+def AnCall = fn void();
+
+struct An2
+{
+    AnCall t;
+}
+
+fn void An2.helloWorld(An2 *an2)
+{
+    printf("An2 hello\n");
+}
+
+fn void check()
+{
+    printf("Checking\n");
+}
+
+
+fn void main()
+{
+    An1 an;
+    an.x.y.helloWorld();
+    an.x.y.t = &check;
+    an.x.y.t();
+}
\ No newline at end of file
diff --git a/test/test_suite7/methods/access_private_method.c3 b/test/test_suite7/methods/access_private_method.c3
new file mode 100644
index 000000000..5e81cb5db
--- /dev/null
+++ b/test/test_suite7/methods/access_private_method.c3
@@ -0,0 +1,9 @@
+def NodeNotifyHandler = fn void(TreeView* this, TreeNode* node, String prop, void* data);
+fn void TreeView.nodeNotifyHandler(TreeView* this, TreeNode* node, String prop, void* data) @private {}
+
+struct TreeNode { int abc; NodeNotifyHandler notifyHandler; }
+struct TreeView { int abc; }
+fn void TreeView.addNodeInternal(TreeView* this, int nop, TreeNode* node, TreeNode* pnode = null, int pos = -1) @private
+{
+        node.notifyHandler = &TreeView.nodeNotifyHandler; // This is the line
+}
\ No newline at end of file
diff --git a/test/test_suite7/methods/dynamic_method_fails.c3 b/test/test_suite7/methods/dynamic_method_fails.c3
new file mode 100644
index 000000000..5db7d1067
--- /dev/null
+++ b/test/test_suite7/methods/dynamic_method_fails.c3
@@ -0,0 +1,6 @@
+
+interface Abc {}
+
+fn void any.blob(any* x) @dynamic {} // #error: 'any' may not implement
+fn void Abc.blob(Abc* y) @dynamic {} // #error: Interfaces may not implement
+fn void int.blob(int z) @dynamic {}  // #error: The first parameter must always
diff --git a/test/test_suite7/methods/enum_distinct_err_methods.c3t b/test/test_suite7/methods/enum_distinct_err_methods.c3t
new file mode 100644
index 000000000..d4ee7e08c
--- /dev/null
+++ b/test/test_suite7/methods/enum_distinct_err_methods.c3t
@@ -0,0 +1,218 @@
+// #target: macos-x64
+
+module foo;
+import std::io;
+
+fault Foo
+{
+    X
+}
+
+distinct Bar = int;
+
+enum MyEnum
+{
+    A,
+    B
+}
+
+fn void Foo.hello(Foo *f)
+{
+    io::printn("Hello from Foo");
+}
+
+fn void Bar.hello(Bar *b)
+{
+    io::printn("Hello from Bar");
+}
+
+fn void MyEnum.hello(MyEnum *myenum)
+{
+    io::printn("Hello from MyEnum");
+}
+fn int main()
+{
+    Foo f;
+    Bar b;
+    MyEnum a = MyEnum.A;
+    f.hello();
+    b.hello();
+    a.hello();
+    return 0;
+}
+
+/* #expect: foo.ll
+
+
+define void @foo.Foo.hello(ptr %0) #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str, i64 14)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  ret void
+}
+
+define void @foo.Bar.hello(ptr %0) #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str.1, i64 14)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  ret void
+}
+
+define void @foo.MyEnum.hello(ptr %0) #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %1 = call ptr @std.io.stdout()
+  %2 = call i64 @std.io.File.write(ptr %retparam, ptr %1, ptr @.str.2, i64 17)
+  %not_err = icmp eq i64 %2, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %3, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %2, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %4 = load i64, ptr %retparam, align 8
+  store i64 %4, ptr %len, align 8
+  %5 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %6, label %after_check5, label %assign_optional4
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %5, ptr %error_var2, align 8
+  br label %guard_block6
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+noerr_block7:                                     ; preds = %after_check5
+  %7 = call i64 @std.io.File.flush(ptr %1)
+  %not_err9 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %8, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %7, ptr %error_var8, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+noerr_block13:                                    ; preds = %after_check11
+  %9 = load i64, ptr %len, align 8
+  %add = add i64 %9, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  ret void
+}
+
+define i32 @main() #0 {
+entry:
+  %f = alloca i64, align 8
+  %b = alloca i32, align 4
+  %a = alloca i32, align 4
+  store i64 0, ptr %f, align 8
+  store i32 0, ptr %b, align 4
+  store i32 0, ptr %a, align 4
+  call void @foo.Foo.hello(ptr %f)
+  call void @foo.Bar.hello(ptr %b)
+  call void @foo.MyEnum.hello(ptr %a)
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/methods/extending_with_visibility.c3 b/test/test_suite7/methods/extending_with_visibility.c3
new file mode 100644
index 000000000..64119422e
--- /dev/null
+++ b/test/test_suite7/methods/extending_with_visibility.c3
@@ -0,0 +1,35 @@
+module test;
+import abc;
+
+struct Foo
+{
+	int x;
+}
+
+fn int Foo.get1(Foo* f) @private => f.x;
+fn int Foo.get2(Foo* f) => f.x;
+fn int Foo.get3(Foo* f) @local => f.x;
+
+fn int Bar.get1(Bar* f) @private => f.x;
+fn int Bar.get2(Bar* f) => f.x;
+fn int Bar.get3(Bar* f) @local => f.x;
+
+fn int main()
+{
+	Foo x = { 1 };
+	x.get1();
+	x.get2();
+	x.get3();
+	Bar y = { 1 };
+	y.get1();
+	y.get2();
+	y.get3();
+	return 1;
+}
+
+module abc;
+
+struct Bar
+{
+	int x;
+}
diff --git a/test/test_suite7/methods/extending_with_visibility_fail.c3 b/test/test_suite7/methods/extending_with_visibility_fail.c3
new file mode 100644
index 000000000..548ad1beb
--- /dev/null
+++ b/test/test_suite7/methods/extending_with_visibility_fail.c3
@@ -0,0 +1,37 @@
+module test;
+import abc;
+
+struct Foo
+{
+	int x;
+}
+
+fn int Foo.get1(Foo* f) @private => f.x;
+fn int Foo.get2(Foo* f) => f.x;
+fn int Foo.get3(Foo* f) @local => f.x;
+
+fn int Bar.get1(Bar* f) @private => f.x;
+fn int Bar.get2(Bar* f) => f.x;
+fn int Bar.get3(Bar* f) @local => f.x;
+
+module abc;
+import test;
+
+struct Bar
+{
+	int x;
+}
+
+Foo x = { 1 };
+Bar y = { 1 };
+
+fn int test()
+{
+	x.get1(); // #error: method
+	x.get2();
+	x.get3(); // #error: method
+	y.get1(); // #error: method
+	y.get2();
+	y.get3(); // #error: method
+	return 1;
+}
diff --git a/test/test_suite7/methods/extending_with_visibility_fail_private.c3 b/test/test_suite7/methods/extending_with_visibility_fail_private.c3
new file mode 100644
index 000000000..89b169507
--- /dev/null
+++ b/test/test_suite7/methods/extending_with_visibility_fail_private.c3
@@ -0,0 +1,37 @@
+module test;
+import abc;
+
+struct Foo
+{
+	int x;
+}
+
+fn int Foo.get1(Foo* f) @private => f.x;
+fn int Foo.get2(Foo* f) => f.x;
+fn int Foo.get3(Foo* f) @local => f.x;
+
+fn int Bar.get1(Bar* f) @private => f.x;
+fn int Bar.get2(Bar* f) => f.x;
+fn int Bar.get3(Bar* f) @local => f.x;
+
+module abc;
+import test @public;
+
+struct Bar
+{
+	int x;
+}
+
+Foo x = { 1 };
+Bar y = { 1 };
+
+fn int test()
+{
+	x.get1();
+	x.get2();
+	x.get3(); // #error: method
+	y.get1();
+	y.get2();
+	y.get3(); // #error: method
+	return 1;
+}
diff --git a/test/test_suite7/methods/extension_method.c3t b/test/test_suite7/methods/extension_method.c3t
new file mode 100644
index 000000000..34b38f07f
--- /dev/null
+++ b/test/test_suite7/methods/extension_method.c3t
@@ -0,0 +1,40 @@
+module foo;
+
+struct Bar
+{
+    int x;
+}
+
+module baz;
+import foo;
+import std::io;
+
+fn void foo::Bar.test(Bar *bar)
+{
+    io::printn("Inside of baz::Bar.test");
+}
+
+module abc;
+import foo;
+import baz;
+
+fn int main()
+{
+    Bar bar;
+    bar.test();
+    return 0;
+}
+
+/* #expect: abc.ll
+
+%Bar = type { i32 }
+
+define i32 @main() #0 {
+entry:
+  %bar = alloca %Bar, align 4
+  store i32 0, ptr %bar, align 4
+  call void @foo.Bar.test(ptr %bar)
+  ret i32 0
+}
+
+declare void @foo.Bar.test(ptr)
diff --git a/test/test_suite7/methods/extension_method_already_exist.c3 b/test/test_suite7/methods/extension_method_already_exist.c3
new file mode 100644
index 000000000..8bd16a1ef
--- /dev/null
+++ b/test/test_suite7/methods/extension_method_already_exist.c3
@@ -0,0 +1,30 @@
+module foo;
+
+fn void Bar.test(Bar *bar)
+{
+    io::printn("Inside of baz::Bar.test");
+}
+
+struct Bar
+{
+    int x;
+}
+
+module baz;
+import foo;
+import std::io;
+
+fn void foo::Bar.test(Bar *bar) // #error: This method is already defined for 'Bar'
+{
+    io::printn("Inside of baz::Bar.test");
+}
+
+module abc;
+import foo;
+import baz;
+
+fn void main()
+{
+    Bar bar;
+    bar.test();
+}
\ No newline at end of file
diff --git a/test/test_suite7/methods/extension_method_check.c3 b/test/test_suite7/methods/extension_method_check.c3
new file mode 100644
index 000000000..ae5ad5226
--- /dev/null
+++ b/test/test_suite7/methods/extension_method_check.c3
@@ -0,0 +1,19 @@
+module test;
+
+def Bob = Test(<any>);
+fn void Bob.crash(&self) {}
+
+fn int main()
+{
+  Test(<any>) foo;
+  return 0;
+}
+<*
+ @require $defined(String.hash)
+*>
+module test::generic(<Some_Type>);
+
+enum Test
+{
+	ABC
+}
\ No newline at end of file
diff --git a/test/test_suite7/methods/extension_method_generic.c3 b/test/test_suite7/methods/extension_method_generic.c3
new file mode 100644
index 000000000..06e36cdd8
--- /dev/null
+++ b/test/test_suite7/methods/extension_method_generic.c3
@@ -0,0 +1,31 @@
+module compiler_c3;
+import std::collections::list;
+
+def IntArray = List(<int>);
+
+extern fn void printf(char*, ...);
+
+fn void IntArray.someFunc(IntArray *this, usz param)
+{
+	//do something
+    this.push((int)param);
+}
+
+fn int main(String[] argv)
+{
+    IntArray stk;
+    stk.someFunc(256);
+
+    for (int i = 0; i < 256; i++)
+    {
+        stk.push(i);
+    }
+
+    for (;!stk.is_empty();)
+    {
+        int value = stk.pop()!!;
+        printf("%i\n", value);
+    }
+
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/methods/extension_method_in_other_modules.c3t b/test/test_suite7/methods/extension_method_in_other_modules.c3t
new file mode 100644
index 000000000..abe98c5c1
--- /dev/null
+++ b/test/test_suite7/methods/extension_method_in_other_modules.c3t
@@ -0,0 +1,42 @@
+// #target: macos-x64
+module foob;
+struct Foo
+{
+	int x;
+}
+fn void Foo.test(Foo* f)
+{}
+
+module baz;
+import foob;
+fn void Foo.test2(Foo* f, int x)
+{}
+fn void main()
+{
+	Foo f;
+	f.test();
+	f.test2(123);
+}
+
+/* #expect: foob.ll
+
+define void @foob.Foo.test(ptr %0) #0 {
+entry:
+  ret void
+}
+
+// #expect: baz.ll
+
+define void @foob.Foo.test2(ptr %0, i32 %1) #0 {
+entry:
+  ret void
+}
+
+define void @baz.main() #0 {
+entry:
+  %f = alloca %Foo, align 4
+  store i32 0, ptr %f, align 4
+  call void @foob.Foo.test(ptr %f)
+  call void @foob.Foo.test2(ptr %f, i32 123)
+  ret void
+}
diff --git a/test/test_suite7/methods/method_extension_in_conditional_module.c3 b/test/test_suite7/methods/method_extension_in_conditional_module.c3
new file mode 100644
index 000000000..eeb28d603
--- /dev/null
+++ b/test/test_suite7/methods/method_extension_in_conditional_module.c3
@@ -0,0 +1,15 @@
+module std::core::env;
+const bool FOO = true;
+
+module foo @if(env::FOO);
+struct Foo { int a; }
+
+module bar;
+import std, foo;
+
+fn void Foo.baz(self) {}
+
+fn int main()
+{
+	return 0;
+}
diff --git a/test/test_suite7/methods/method_from_var.c3 b/test/test_suite7/methods/method_from_var.c3
new file mode 100644
index 000000000..ce5bba181
--- /dev/null
+++ b/test/test_suite7/methods/method_from_var.c3
@@ -0,0 +1,9 @@
+def NodeNotifyHandler = fn void(TreeView* this, TreeNode* node, String prop, void* data);
+fn void TreeView.nodeNotifyHandler(TreeView* this, TreeNode* node, String prop, void* data) @private {}
+
+struct TreeNode { int abc; NodeNotifyHandler notifyHandler; }
+struct TreeView { int abc; }
+fn void TreeView.addNodeInternal(TreeView* this, int nop, TreeNode* node, TreeNode* pnode = null, int pos = -1) @private
+{
+	 node.notifyHandler = &(this.nodeNotifyHandler); // #error: Taking the address of a method
+}
\ No newline at end of file
diff --git a/test/test_suite7/methods/method_name_collision.c3 b/test/test_suite7/methods/method_name_collision.c3
new file mode 100644
index 000000000..b12d33230
--- /dev/null
+++ b/test/test_suite7/methods/method_name_collision.c3
@@ -0,0 +1,7 @@
+module testc3;
+
+fn bool any.type(self) { // #error: is not a valid method name
+return true;
+}
+
+fn void main() {}
diff --git a/test/test_suite7/methods/method_ref_for_extension_method.c3 b/test/test_suite7/methods/method_ref_for_extension_method.c3
new file mode 100644
index 000000000..22d27abdb
--- /dev/null
+++ b/test/test_suite7/methods/method_ref_for_extension_method.c3
@@ -0,0 +1,19 @@
+module testc3;
+import std::io;
+
+struct Foo {
+  int i;
+}
+
+fn bool Foo[].is_empty(Foo[] array) {
+  return array.len == 0;
+}
+
+def foo_arr_is_empty = Foo[].is_empty;
+
+fn void main() {
+  Foo[] foos = { (Foo) { .i = 0 } };
+  void* foo = &Foo[].is_empty;
+  io::printfn("Is empty: %s", foos.is_empty());
+  io::printfn("Is empty: %s", foo_arr_is_empty(foos));
+}
diff --git a/test/test_suite7/methods/methods_defined_twice.c3 b/test/test_suite7/methods/methods_defined_twice.c3
new file mode 100644
index 000000000..5c60adf53
--- /dev/null
+++ b/test/test_suite7/methods/methods_defined_twice.c3
@@ -0,0 +1,31 @@
+module foo;
+
+struct Bar
+{
+    int x;
+}
+
+module baz;
+import foo;
+import std::io;
+
+fn void foo::Bar.test(Bar *bar)
+{
+    io::printn("Inside of baz::Bar.test");
+}
+
+fn void Bar.test(Bar *bar) // #error: This method is already defined for
+{
+    io::printn("Inside of baz::Bar.test");
+}
+
+module abc;
+import foo;
+import baz;
+
+fn void main()
+{
+    Bar bar;
+    bar.test();
+}
+
diff --git a/test/test_suite7/methods/methods_with_inferred_type.c3t b/test/test_suite7/methods/methods_with_inferred_type.c3t
new file mode 100644
index 000000000..5e38793d8
--- /dev/null
+++ b/test/test_suite7/methods/methods_with_inferred_type.c3t
@@ -0,0 +1,83 @@
+// #target: macos-x64
+module test;
+
+distinct Foo = int;
+
+struct Abc
+{
+	int a;
+	int b;
+}
+
+fn void Foo.add(&f)
+{
+	*f = *f + 1;
+}
+
+macro void Foo.add_macro(&f)
+{
+	(*f)++;
+}
+
+fn int Abc.add(&a)
+{
+	return a.a + a.b;
+}
+
+macro int Abc.add_macro(&a)
+{
+	return a.a + a.b;
+}
+
+fn void test()
+{
+	Abc x = { 3, 4 };
+	int a = x.add();
+	int b = x.add_macro();
+	Foo f = 100;
+	f.add();
+	f.add_macro();
+}
+
+/* #expect: test.ll
+
+define void @test.Foo.add(ptr %0) #0 {
+entry:
+  %1 = load i32, ptr %0, align 4
+  %add = add i32 %1, 1
+  store i32 %add, ptr %0, align 4
+  ret void
+}
+
+; Function Attrs:
+define i32 @test.Abc.add(ptr %0) #0 {
+entry:
+  %1 = load i32, ptr %0, align 4
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 4
+  %2 = load i32, ptr %ptradd, align 4
+  %add = add i32 %1, %2
+  ret i32 %add
+}
+
+; Function Attrs:
+define void @test.test() #0 {
+entry:
+  %x = alloca %Abc, align 4
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %f = alloca i32, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 8, i1 false)
+  %0 = call i32 @test.Abc.add(ptr %x)
+  store i32 %0, ptr %a, align 4
+  %1 = load i32, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  %2 = load i32, ptr %ptradd, align 4
+  %add = add i32 %1, %2
+  store i32 %add, ptr %b, align 4
+  store i32 100, ptr %f, align 4
+  call void @test.Foo.add(ptr %f)
+  %3 = load i32, ptr %f, align 4
+  %add1 = add i32 %3, 1
+  store i32 %add1, ptr %f, align 4
+  ret void
+}
diff --git a/test/test_suite7/methods/operator_assign_mutate.c3t b/test/test_suite7/methods/operator_assign_mutate.c3t
new file mode 100644
index 000000000..0d9a1ac60
--- /dev/null
+++ b/test/test_suite7/methods/operator_assign_mutate.c3t
@@ -0,0 +1,77 @@
+// #target: macos-x64
+module test;
+import std::io, std::time, std::math, std::collections;
+
+List(<long>) stones;
+
+struct Foo
+{
+	int[3] x;
+}
+
+fn int Foo.get(self, usz i) @operator([]) => self.x[i];
+fn void Foo.set(&self, usz i, int z) @operator([]=) => self.x[i] = z;
+
+fn void main() {
+  stones.push(1);
+  stones.push(100);
+  stones[0] *= 3;
+  stones[1] *= 2;
+  stones[0] += 31;
+  Foo z;
+  z[1] += 5;
+  z[1] *= 3;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %z = alloca %Foo, align 4
+  %.anon = alloca i32, align 4
+  %coerce = alloca %Foo, align 8
+  %.anon5 = alloca i32, align 4
+  %coerce6 = alloca %Foo, align 8
+  call void @"std_collections_list$long$.List.push"(ptr @test.stones, i64 1) #2
+  call void @"std_collections_list$long$.List.push"(ptr @test.stones, i64 100) #2
+  %0 = call ptr @"std_collections_list$long$.List.get_ref"(ptr @test.stones, i64 0) #2
+  %1 = load i64, ptr %0, align 8
+  %mul = mul i64 %1, 3
+  store i64 %mul, ptr %0, align 8
+  %2 = call ptr @"std_collections_list$long$.List.get_ref"(ptr @test.stones, i64 1) #2
+  %3 = load i64, ptr %2, align 8
+  %mul1 = mul i64 %3, 2
+  store i64 %mul1, ptr %2, align 8
+  %4 = call ptr @"std_collections_list$long$.List.get_ref"(ptr @test.stones, i64 0) #2
+  %5 = load i64, ptr %4, align 8
+  %add = add i64 %5, 31
+  store i64 %add, ptr %4, align 8
+  store i32 0, ptr %z, align 4
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %z, i64 8
+  store i32 0, ptr %ptradd2, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %coerce, ptr align 4 %z, i32 12, i1 false)
+  %lo = load i64, ptr %coerce, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %coerce, i64 8
+  %hi = load i32, ptr %ptradd3, align 8
+  %6 = call i32 @test.Foo.get(i64 %lo, i32 %hi, i64 1)
+  store i32 %6, ptr %.anon, align 4
+  %7 = load i32, ptr %.anon, align 4
+  %add4 = add i32 %7, 5
+  store i32 %add4, ptr %.anon, align 4
+  %8 = load i32, ptr %.anon, align 4
+  call void @test.Foo.set(ptr %z, i64 1, i32 %8)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %coerce6, ptr align 4 %z, i32 12, i1 false)
+  %lo7 = load i64, ptr %coerce6, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %coerce6, i64 8
+  %hi9 = load i32, ptr %ptradd8, align 8
+  %9 = call i32 @test.Foo.get(i64 %lo7, i32 %hi9, i64 1)
+  store i32 %9, ptr %.anon5, align 4
+  %10 = load i32, ptr %.anon5, align 4
+  %mul10 = mul i32 %10, 3
+  store i32 %mul10, ptr %.anon5, align 4
+  %11 = load i32, ptr %.anon5, align 4
+  call void @test.Foo.set(ptr %z, i64 1, i32 %11)
+  ret void
+}
diff --git a/test/test_suite7/methods/operator_defined_twice.c3 b/test/test_suite7/methods/operator_defined_twice.c3
new file mode 100644
index 000000000..9720ec498
--- /dev/null
+++ b/test/test_suite7/methods/operator_defined_twice.c3
@@ -0,0 +1,9 @@
+distinct Foo = int;
+
+fn int Foo.fadd(&self, int x) @operator([]) { return 1; }
+fn int Foo.badd(&self, int x) @operator([]) { return 1; } // #error: This operator is already defined
+
+fn void main()
+{
+	Foo x = 1;
+}
diff --git a/test/test_suite7/methods/operator_inc.c3t b/test/test_suite7/methods/operator_inc.c3t
new file mode 100644
index 000000000..ffb18b837
--- /dev/null
+++ b/test/test_suite7/methods/operator_inc.c3t
@@ -0,0 +1,52 @@
+// #target: macos-x64
+module test;
+
+import std;
+
+struct Foo
+{
+	int[5] a;
+}
+fn int Foo.get(self, usz i) @operator([]) => self.a[i];
+fn void Foo.set(&self, usz i, int j) @operator([]=) { self.a[i] = j; }
+
+Foo m;
+fn void main() {
+
+	m.a[3] = 100;
+	int x = m[3]--;
+}
+
+/* #expect: test.ll
+
+define i32 @test.Foo.get(ptr byval(%Foo) align 8 %0, i64 %1) #0 {
+entry:
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %0, i64 %1
+  %2 = load i32, ptr %ptroffset, align 4
+  ret i32 %2
+}
+
+define void @test.Foo.set(ptr %0, i64 %1, i32 %2) #0 {
+entry:
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %0, i64 %1
+  store i32 %2, ptr %ptroffset, align 4
+  ret void
+}
+
+define void @test.main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %.anon = alloca i32, align 4
+  %indirectarg = alloca %Foo, align 8
+  store i32 100, ptr getelementptr inbounds (i8, ptr @test.m, i64 12), align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %indirectarg, ptr align 4 @test.m, i32 20, i1 false)
+  %0 = call i32 @test.Foo.get(ptr byval(%Foo) align 8 %indirectarg, i64 3)
+  store i32 %0, ptr %.anon, align 4
+  %1 = load i32, ptr %.anon, align 4
+  %sub = sub i32 %1, 1
+  store i32 %sub, ptr %.anon, align 4
+  %2 = load i32, ptr %.anon, align 4
+  call void @test.Foo.set(ptr @test.m, i64 3, i32 %2)
+  store i32 %1, ptr %x, align 4
+  ret void
+}
diff --git a/test/test_suite7/methods/operator_mismatch.c3 b/test/test_suite7/methods/operator_mismatch.c3
new file mode 100644
index 000000000..d0f96160b
--- /dev/null
+++ b/test/test_suite7/methods/operator_mismatch.c3
@@ -0,0 +1,12 @@
+struct Foo { int a; }
+struct Foo2 { int a; }
+struct Bar { int a; }
+
+fn int Foo.x(&self, int x) @operator([]) => 1;
+fn int Foo.y(&self, int x) @operator(&[]) => 1;        // #error: The return type must be a pointer
+fn int Foo2.y(&self, int x) @operator([]) => null;
+fn int** Foo2.y2(&self, int x) @operator(&[]) => null; // #error: There is a mismatch of the 'value' type
+fn void Foo.z(&self, uint x, int a) @operator([]=) {}  // #error: There is a mismatch of the 'index'
+
+fn double Bar.x(&self, int x) @operator([]) => 0.1;
+fn void Bar.y(&self, int x, float y) @operator([]=) {} // #error: There is a mismatch of the 'value'
diff --git a/test/test_suite7/methods/self_methods_null.c3t b/test/test_suite7/methods/self_methods_null.c3t
new file mode 100644
index 000000000..80819d3c4
--- /dev/null
+++ b/test/test_suite7/methods/self_methods_null.c3t
@@ -0,0 +1,27 @@
+// #target: macos-x64
+// #safe: yes
+module test;
+distinct Foo = int;
+fn void Foo.test(&self) {}
+fn int main()
+{
+	Foo* a = null;
+	a.test();
+    return 0;
+}
+/* #expect: test.ll
+
+define void @test.Foo.test(ptr %0) #0 {
+entry:
+  %1 = icmp eq ptr %0, null
+  %2 = call i1 @llvm.expect.i1(i1 %1, i1 false)
+  br i1 %2, label %panic, label %checkok
+
+checkok:                                          ; preds = %entry
+  ret void
+
+panic:                                            ; preds = %entry
+  %3 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %3(ptr @.panic_msg, i64 62, ptr @.file, i64 20, ptr @.func, i64 4, i32 3)
+  unreachable
+}
diff --git a/test/test_suite7/methods/unsupported_operator.c3 b/test/test_suite7/methods/unsupported_operator.c3
new file mode 100755
index 000000000..8610d8f9d
--- /dev/null
+++ b/test/test_suite7/methods/unsupported_operator.c3
@@ -0,0 +1,3 @@
+import std::io;
+
+fn int int.fadd(&self, int x) @operator([]) { return 1; } // #error: Only user-defined types support operator overloading
\ No newline at end of file
diff --git a/test/test_suite7/module/missing_semi.c3 b/test/test_suite7/module/missing_semi.c3
new file mode 100644
index 000000000..ce8ae0942
--- /dev/null
+++ b/test/test_suite7/module/missing_semi.c3
@@ -0,0 +1,3 @@
+module test    // #error: Expected ';'
+
+int a;
\ No newline at end of file
diff --git a/test/test_suite7/module/module_bad_path_ident.c3 b/test/test_suite7/module/module_bad_path_ident.c3
new file mode 100644
index 000000000..3897c998c
--- /dev/null
+++ b/test/test_suite7/module/module_bad_path_ident.c3
@@ -0,0 +1 @@
+module big::MONEY; // #error: The elements of a module path must consist of only lower
\ No newline at end of file
diff --git a/test/test_suite7/module/module_bad_path_invalid.c3 b/test/test_suite7/module/module_bad_path_invalid.c3
new file mode 100644
index 000000000..1554c001d
--- /dev/null
+++ b/test/test_suite7/module/module_bad_path_invalid.c3
@@ -0,0 +1 @@
+module abc::&&; // #error: Each '::' must be followed by a regular lower case sub module name
\ No newline at end of file
diff --git a/test/test_suite7/module/module_bad_path_keyword.c3 b/test/test_suite7/module/module_bad_path_keyword.c3
new file mode 100644
index 000000000..918aa7389
--- /dev/null
+++ b/test/test_suite7/module/module_bad_path_keyword.c3
@@ -0,0 +1 @@
+module abc::if::while; // #error: The module path cannot contain a reserved keyword, try another name
\ No newline at end of file
diff --git a/test/test_suite7/module/module_error_string.c3 b/test/test_suite7/module/module_error_string.c3
new file mode 100644
index 000000000..ceb869c56
--- /dev/null
+++ b/test/test_suite7/module/module_error_string.c3
@@ -0,0 +1 @@
+module "Hello my friend"; // #error: 'module' should be followed by a plain identifier, not a string. Did you accidentally put the module name between ""?
\ No newline at end of file
diff --git a/test/test_suite7/module/module_generic_mixing.c3 b/test/test_suite7/module/module_generic_mixing.c3
new file mode 100644
index 000000000..be62be825
--- /dev/null
+++ b/test/test_suite7/module/module_generic_mixing.c3
@@ -0,0 +1,7 @@
+module test;
+fn void main() {}
+
+module test(<Type>); // #error: generic
+fn void test() {
+	Type a;
+}
\ No newline at end of file
diff --git a/test/test_suite7/module/module_section_export.c3t b/test/test_suite7/module/module_section_export.c3t
new file mode 100644
index 000000000..c556e4690
--- /dev/null
+++ b/test/test_suite7/module/module_section_export.c3t
@@ -0,0 +1,29 @@
+// #target: macos-x64
+
+module test @extern("TEST");
+
+fn void hello() @private {}
+
+fn void hello2() @private @export {}
+
+int a @private @export;
+int b @private;
+
+module test @export;
+
+fn void helloe() @private {}
+
+int c @private @export;
+int d @private;
+
+/* #expect: test.ll
+
+
+@TEST__a = local_unnamed_addr global i32 0, align 4
+@TEST.b = internal unnamed_addr global i32 0, align 4
+@TEST__c = local_unnamed_addr global i32 0, align 4
+@TEST__d = local_unnamed_addr global i32 0, align 4
+
+define internal void @TEST.hello()
+define void @TEST__hello2()
+define void @TEST__helloe()
\ No newline at end of file
diff --git a/test/test_suite7/module/module_start_bad_ident.c3 b/test/test_suite7/module/module_start_bad_ident.c3
new file mode 100644
index 000000000..3502724ba
--- /dev/null
+++ b/test/test_suite7/module/module_start_bad_ident.c3
@@ -0,0 +1 @@
+module BIG::MONEY; // #error: The module name must consist of only lower case letters
\ No newline at end of file
diff --git a/test/test_suite7/module/module_start_invalid.c3 b/test/test_suite7/module/module_start_invalid.c3
new file mode 100644
index 000000000..1c8e68bb9
--- /dev/null
+++ b/test/test_suite7/module/module_start_invalid.c3
@@ -0,0 +1 @@
+module &&; // #error: 'module' should be followed by a module name
\ No newline at end of file
diff --git a/test/test_suite7/module/module_start_keyword.c3 b/test/test_suite7/module/module_start_keyword.c3
new file mode 100644
index 000000000..84ff3d77c
--- /dev/null
+++ b/test/test_suite7/module/module_start_keyword.c3
@@ -0,0 +1 @@
+module if::hello; // #error: The module name cannot contain a reserved keyword
\ No newline at end of file
diff --git a/test/test_suite7/module/private_module.c3 b/test/test_suite7/module/private_module.c3
new file mode 100644
index 000000000..837e36b94
--- /dev/null
+++ b/test/test_suite7/module/private_module.c3
@@ -0,0 +1 @@
+module foo @private;
\ No newline at end of file
diff --git a/test/test_suite7/module/unknown_modules.c3 b/test/test_suite7/module/unknown_modules.c3
new file mode 100644
index 000000000..a800c0fc8
--- /dev/null
+++ b/test/test_suite7/module/unknown_modules.c3
@@ -0,0 +1,4 @@
+module test;
+
+import foo;    // #error: No module named 'foo' could be found
+import bar;    // #error: No module named 'bar' could be found
\ No newline at end of file
diff --git a/test/test_suite7/overloading/construct_op_zero_args.c3 b/test/test_suite7/overloading/construct_op_zero_args.c3
new file mode 100644
index 000000000..670f5c845
--- /dev/null
+++ b/test/test_suite7/overloading/construct_op_zero_args.c3
@@ -0,0 +1,5 @@
+struct Foo { int a; }
+fn Foo Foo.foo() @operator(construct)
+{
+	return { 1 };
+}
diff --git a/test/test_suite7/overloading/construct_operator.c3t b/test/test_suite7/overloading/construct_operator.c3t
new file mode 100644
index 000000000..6b08b0424
--- /dev/null
+++ b/test/test_suite7/overloading/construct_operator.c3t
@@ -0,0 +1,353 @@
+// #target: macos-x64
+module test;
+import std;
+struct Foo
+{
+	int a;
+}
+
+macro Foo Foo.baz(int y) @operator(construct)
+{
+	return { 2 + y } ;
+}
+fn Foo Foo.new(int x) @operator(construct)
+{
+	return { 23 };
+}
+
+fn int! x() { return 1; }
+fn void main()
+{
+	io::printn(Foo.new(123));
+	io::printn(Foo.baz(123));
+}
+/* #expect: test.ll
+
+
+define void @test.main() #0 {
+entry:
+  %result = alloca %Foo, align 4
+  %x = alloca %Foo, align 4
+  %x1 = alloca %Foo, align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca %Foo, align 4
+  %formatter = alloca %Formatter, align 8
+  %taddr = alloca %any, align 8
+  %value = alloca %Foo, align 4
+  %total = alloca i64, align 8
+  %error_var5 = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var6 = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr7 = alloca %"char[]", align 8
+  %retparam8 = alloca i64, align 8
+  %error_var14 = alloca i64, align 8
+  %varargslots15 = alloca [1 x %any], align 16
+  %retparam16 = alloca i64, align 8
+  %retparam23 = alloca i64, align 8
+  %error_var30 = alloca i64, align 8
+  %error_var36 = alloca i64, align 8
+  %literal = alloca %Foo, align 4
+  %x43 = alloca %Foo, align 4
+  %x44 = alloca %Foo, align 4
+  %len45 = alloca i64, align 8
+  %error_var46 = alloca i64, align 8
+  %x47 = alloca %Foo, align 4
+  %formatter49 = alloca %Formatter, align 8
+  %taddr50 = alloca %any, align 8
+  %value51 = alloca %Foo, align 4
+  %total53 = alloca i64, align 8
+  %error_var54 = alloca i64, align 8
+  %retparam55 = alloca i64, align 8
+  %error_var61 = alloca i64, align 8
+  %varargslots62 = alloca [1 x %any], align 16
+  %taddr63 = alloca %"char[]", align 8
+  %retparam64 = alloca i64, align 8
+  %error_var71 = alloca i64, align 8
+  %varargslots72 = alloca [1 x %any], align 16
+  %retparam73 = alloca i64, align 8
+  %retparam80 = alloca i64, align 8
+  %error_var87 = alloca i64, align 8
+  %error_var93 = alloca i64, align 8
+  %0 = call i32 @test.Foo.new(i32 123)
+  store i32 %0, ptr %result, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 %result, i32 4, i1 false)
+  %1 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x1, ptr align 4 %x, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x2, ptr align 4 %x1, i32 4, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %formatter, i8 0, i64 48, i1 false)
+  %2 = insertvalue %any undef, ptr %1, 0
+  %3 = insertvalue %any %2, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %any %3, ptr %taddr, align 8
+  call void @std.io.Formatter.init(ptr %formatter, ptr @std.io.out_putstream_fn, ptr %taddr)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %value, ptr align 4 %x2, i32 4, i1 false)
+  %4 = call i64 @std.io.Formatter.print(ptr %retparam, ptr %formatter, ptr @.str, i64 2)
+  %not_err = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %5, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %4, ptr %error_var5, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %6 = load i64, ptr %error_var5, align 8
+  store i64 %6, ptr %error_var, align 8
+  br label %guard_block28
+
+noerr_block:                                      ; preds = %after_check
+  %7 = load i64, ptr %retparam, align 8
+  store i64 %7, ptr %total, align 8
+  %8 = load i64, ptr %total, align 8
+  store %"char[]" { ptr @.str.2, i64 1 }, ptr %taddr7, align 8
+  %9 = insertvalue %any undef, ptr %taddr7, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %10, ptr %varargslots, align 16
+  %11 = call i64 @std.io.Formatter.printf(ptr %retparam8, ptr %formatter, ptr @.str.1, i64 4, ptr %varargslots, i64 1)
+  %not_err9 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %12, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block
+  store i64 %11, ptr %error_var6, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  %13 = load i64, ptr %error_var6, align 8
+  store i64 %13, ptr %error_var, align 8
+  br label %guard_block28
+
+noerr_block13:                                    ; preds = %after_check11
+  %14 = load i64, ptr %retparam8, align 8
+  %add = add i64 %8, %14
+  store i64 %add, ptr %total, align 8
+  %15 = load i64, ptr %total, align 8
+  %16 = insertvalue %any undef, ptr %value, 0
+  %17 = insertvalue %any %16, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %17, ptr %varargslots15, align 16
+  %18 = call i64 @std.io.Formatter.printf(ptr %retparam16, ptr %formatter, ptr @.str.3, i64 2, ptr %varargslots15, i64 1)
+  %not_err17 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err17, i1 true)
+  br i1 %19, label %after_check19, label %assign_optional18
+
+assign_optional18:                                ; preds = %noerr_block13
+  store i64 %18, ptr %error_var14, align 8
+  br label %guard_block20
+
+after_check19:                                    ; preds = %noerr_block13
+  br label %noerr_block21
+
+guard_block20:                                    ; preds = %assign_optional18
+  %20 = load i64, ptr %error_var14, align 8
+  store i64 %20, ptr %error_var, align 8
+  br label %guard_block28
+
+noerr_block21:                                    ; preds = %after_check19
+  %21 = load i64, ptr %retparam16, align 8
+  %add22 = add i64 %15, %21
+  store i64 %add22, ptr %total, align 8
+  %22 = load i64, ptr %total, align 8
+  %23 = call i64 @std.io.Formatter.print(ptr %retparam23, ptr %formatter, ptr @.str.4, i64 2)
+  %not_err24 = icmp eq i64 %23, 0
+  %24 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %24, label %after_check26, label %assign_optional25
+
+assign_optional25:                                ; preds = %noerr_block21
+  store i64 %23, ptr %error_var, align 8
+  br label %guard_block28
+
+after_check26:                                    ; preds = %noerr_block21
+  %25 = load i64, ptr %retparam23, align 8
+  %add27 = add i64 %22, %25
+  br label %noerr_block29
+
+guard_block28:                                    ; preds = %assign_optional25, %guard_block20, %guard_block12, %guard_block
+  br label %voiderr
+
+noerr_block29:                                    ; preds = %after_check26
+  store i64 %add27, ptr %len, align 8
+  %26 = call i64 @std.io.File.write_byte(ptr %1, i8 zeroext 10)
+  %not_err31 = icmp eq i64 %26, 0
+  %27 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %27, label %after_check33, label %assign_optional32
+
+assign_optional32:                                ; preds = %noerr_block29
+  store i64 %26, ptr %error_var30, align 8
+  br label %guard_block34
+
+after_check33:                                    ; preds = %noerr_block29
+  br label %noerr_block35
+
+guard_block34:                                    ; preds = %assign_optional32
+  br label %voiderr
+
+noerr_block35:                                    ; preds = %after_check33
+  %28 = call i64 @std.io.File.flush(ptr %1)
+  %not_err37 = icmp eq i64 %28, 0
+  %29 = call i1 @llvm.expect.i1(i1 %not_err37, i1 true)
+  br i1 %29, label %after_check39, label %assign_optional38
+
+assign_optional38:                                ; preds = %noerr_block35
+  store i64 %28, ptr %error_var36, align 8
+  br label %guard_block40
+
+after_check39:                                    ; preds = %noerr_block35
+  br label %noerr_block41
+
+guard_block40:                                    ; preds = %assign_optional38
+  br label %voiderr
+
+noerr_block41:                                    ; preds = %after_check39
+  %30 = load i64, ptr %len, align 8
+  %add42 = add i64 %30, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block41, %guard_block40, %guard_block34, %guard_block28
+  store i32 125, ptr %literal, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x43, ptr align 4 %literal, i32 4, i1 false)
+  %31 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x44, ptr align 4 %x43, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x47, ptr align 4 %x44, i32 4, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %formatter49, i8 0, i64 48, i1 false)
+  %32 = insertvalue %any undef, ptr %31, 0
+  %33 = insertvalue %any %32, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %any %33, ptr %taddr50, align 8
+  call void @std.io.Formatter.init(ptr %formatter49, ptr @std.io.out_putstream_fn, ptr %taddr50)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %value51, ptr align 4 %x47, i32 4, i1 false)
+  %34 = call i64 @std.io.Formatter.print(ptr %retparam55, ptr %formatter49, ptr @.str.5, i64 2)
+  %not_err56 = icmp eq i64 %34, 0
+  %35 = call i1 @llvm.expect.i1(i1 %not_err56, i1 true)
+  br i1 %35, label %after_check58, label %assign_optional57
+
+assign_optional57:                                ; preds = %voiderr
+  store i64 %34, ptr %error_var54, align 8
+  br label %guard_block59
+
+after_check58:                                    ; preds = %voiderr
+  br label %noerr_block60
+
+guard_block59:                                    ; preds = %assign_optional57
+  %36 = load i64, ptr %error_var54, align 8
+  store i64 %36, ptr %error_var46, align 8
+  br label %guard_block85
+
+noerr_block60:                                    ; preds = %after_check58
+  %37 = load i64, ptr %retparam55, align 8
+  store i64 %37, ptr %total53, align 8
+  %38 = load i64, ptr %total53, align 8
+  store %"char[]" { ptr @.str.7, i64 1 }, ptr %taddr63, align 8
+  %39 = insertvalue %any undef, ptr %taddr63, 0
+  %40 = insertvalue %any %39, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %40, ptr %varargslots62, align 16
+  %41 = call i64 @std.io.Formatter.printf(ptr %retparam64, ptr %formatter49, ptr @.str.6, i64 4, ptr %varargslots62, i64 1)
+  %not_err65 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err65, i1 true)
+  br i1 %42, label %after_check67, label %assign_optional66
+
+assign_optional66:                                ; preds = %noerr_block60
+  store i64 %41, ptr %error_var61, align 8
+  br label %guard_block68
+
+after_check67:                                    ; preds = %noerr_block60
+  br label %noerr_block69
+
+guard_block68:                                    ; preds = %assign_optional66
+  %43 = load i64, ptr %error_var61, align 8
+  store i64 %43, ptr %error_var46, align 8
+  br label %guard_block85
+
+noerr_block69:                                    ; preds = %after_check67
+  %44 = load i64, ptr %retparam64, align 8
+  %add70 = add i64 %38, %44
+  store i64 %add70, ptr %total53, align 8
+  %45 = load i64, ptr %total53, align 8
+  %46 = insertvalue %any undef, ptr %value51, 0
+  %47 = insertvalue %any %46, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %47, ptr %varargslots72, align 16
+  %48 = call i64 @std.io.Formatter.printf(ptr %retparam73, ptr %formatter49, ptr @.str.8, i64 2, ptr %varargslots72, i64 1)
+  %not_err74 = icmp eq i64 %48, 0
+  %49 = call i1 @llvm.expect.i1(i1 %not_err74, i1 true)
+  br i1 %49, label %after_check76, label %assign_optional75
+
+assign_optional75:                                ; preds = %noerr_block69
+  store i64 %48, ptr %error_var71, align 8
+  br label %guard_block77
+
+after_check76:                                    ; preds = %noerr_block69
+  br label %noerr_block78
+
+guard_block77:                                    ; preds = %assign_optional75
+  %50 = load i64, ptr %error_var71, align 8
+  store i64 %50, ptr %error_var46, align 8
+  br label %guard_block85
+
+noerr_block78:                                    ; preds = %after_check76
+  %51 = load i64, ptr %retparam73, align 8
+  %add79 = add i64 %45, %51
+  store i64 %add79, ptr %total53, align 8
+  %52 = load i64, ptr %total53, align 8
+  %53 = call i64 @std.io.Formatter.print(ptr %retparam80, ptr %formatter49, ptr @.str.9, i64 2)
+  %not_err81 = icmp eq i64 %53, 0
+  %54 = call i1 @llvm.expect.i1(i1 %not_err81, i1 true)
+  br i1 %54, label %after_check83, label %assign_optional82
+
+assign_optional82:                                ; preds = %noerr_block78
+  store i64 %53, ptr %error_var46, align 8
+  br label %guard_block85
+
+after_check83:                                    ; preds = %noerr_block78
+  %55 = load i64, ptr %retparam80, align 8
+  %add84 = add i64 %52, %55
+  br label %noerr_block86
+
+guard_block85:                                    ; preds = %assign_optional82, %guard_block77, %guard_block68, %guard_block59
+  br label %voiderr100
+
+noerr_block86:                                    ; preds = %after_check83
+  store i64 %add84, ptr %len45, align 8
+  %56 = call i64 @std.io.File.write_byte(ptr %31, i8 zeroext 10)
+  %not_err88 = icmp eq i64 %56, 0
+  %57 = call i1 @llvm.expect.i1(i1 %not_err88, i1 true)
+  br i1 %57, label %after_check90, label %assign_optional89
+
+assign_optional89:                                ; preds = %noerr_block86
+  store i64 %56, ptr %error_var87, align 8
+  br label %guard_block91
+
+after_check90:                                    ; preds = %noerr_block86
+  br label %noerr_block92
+
+guard_block91:                                    ; preds = %assign_optional89
+  br label %voiderr100
+
+noerr_block92:                                    ; preds = %after_check90
+  %58 = call i64 @std.io.File.flush(ptr %31)
+  %not_err94 = icmp eq i64 %58, 0
+  %59 = call i1 @llvm.expect.i1(i1 %not_err94, i1 true)
+  br i1 %59, label %after_check96, label %assign_optional95
+
+assign_optional95:                                ; preds = %noerr_block92
+  store i64 %58, ptr %error_var93, align 8
+  br label %guard_block97
+
+after_check96:                                    ; preds = %noerr_block92
+  br label %noerr_block98
+
+guard_block97:                                    ; preds = %assign_optional95
+  br label %voiderr100
+
+noerr_block98:                                    ; preds = %after_check96
+  %60 = load i64, ptr %len45, align 8
+  %add99 = add i64 %60, 1
+  br label %voiderr100
+
+voiderr100:                                       ; preds = %noerr_block98, %guard_block97, %guard_block91, %guard_block85
+  ret void
+}
diff --git a/test/test_suite7/overloading/set_not_set_overload.c3t b/test/test_suite7/overloading/set_not_set_overload.c3t
new file mode 100644
index 000000000..c2e14d7f1
--- /dev/null
+++ b/test/test_suite7/overloading/set_not_set_overload.c3t
@@ -0,0 +1,61 @@
+// #target: macos-x64
+module test;
+import std::io;
+import std::collections::list;
+
+List{int[3]} x;
+
+struct Map
+{
+	char[20][] data;
+	int width;
+}
+fn int Map.len(self) @inline @operator(len) => self.width;
+fn char[] Map.get(self, int i) @inline @operator([]) => self.data[i][:self.width];
+
+fn void main ()
+{
+	x.tinit();
+	int[3] y = { 1, 2, 3 };
+	x.push(y);
+	x[0][0] = 4;
+	char[20][20] z;
+	Map foo = { z[:10], 10 };
+	foo[3][4] = 123;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %y = alloca [3 x i32], align 4
+  %coerce = alloca [3 x i32], align 8
+  %z = alloca [20 x [20 x i8]], align 16
+  %foo = alloca %Map, align 8
+  %result = alloca %"char[]", align 8
+  %0 = call ptr @"std_collections_list$a3$int$.List.tinit"(ptr @test.x, i64 16)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 @.__const, i32 12, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %coerce, ptr align 4 %y, i32 12, i1 false)
+  %lo = load i64, ptr %coerce, align 8
+  %ptradd = getelementptr inbounds i8, ptr %coerce, i64 8
+  %hi = load i32, ptr %ptradd, align 8
+  call void @"std_collections_list$a3$int$.List.push"(ptr @test.x, i64 %lo, i32 %hi) #4
+  %1 = load i64, ptr @test.x, align 8
+  %lt = icmp ult i64 0, %1
+  call void @llvm.assume(i1 %lt)
+  %2 = load ptr, ptr getelementptr inbounds (i8, ptr @test.x, i64 32), align 8
+  store i32 4, ptr %2, align 4
+  call void @llvm.memset.p0.i64(ptr align 16 %z, i8 0, i64 400, i1 false)
+  %3 = insertvalue %"char[20][]" undef, ptr %z, 0
+  %4 = insertvalue %"char[20][]" %3, i64 10, 1
+  store %"char[20][]" %4, ptr %foo, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %foo, i64 16
+  store i32 10, ptr %ptradd1, align 8
+  %5 = call { ptr, i64 } @test.Map.get(ptr byval(%Map) align 8 %foo, i32 3) #4
+  store { ptr, i64 } %5, ptr %result, align 8
+  %6 = load ptr, ptr %result, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %6, i64 4
+  store i8 123, ptr %ptradd2, align 1
+  ret void
+}
+
diff --git a/test/test_suite7/overloading/set_overload.c3t b/test/test_suite7/overloading/set_overload.c3t
new file mode 100644
index 000000000..8a6c8fae6
--- /dev/null
+++ b/test/test_suite7/overloading/set_overload.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+
+module test;
+import std::collections::map;
+
+def IntMap = HashMap(<char[], int>);
+
+fn void main()
+{
+	IntMap map;
+	map.set("Hello", 4);
+	map["Bye"] = 5;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %map = alloca %HashMap, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %map, i8 0, i64 48, i1 false)
+  %0 = call i8 @"std_collections_map$sa$char$int$.HashMap.set"(ptr %map, ptr @.str, i64 5, i32 4)
+  %1 = call i8 @"std_collections_map$sa$char$int$.HashMap.set"(ptr %map, ptr @.str.1, i64 3, i32 5)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/pointers/array_pointer_decay.c3t b/test/test_suite7/pointers/array_pointer_decay.c3t
new file mode 100644
index 000000000..79586d79f
--- /dev/null
+++ b/test/test_suite7/pointers/array_pointer_decay.c3t
@@ -0,0 +1,77 @@
+// #target: macos-x64
+module foo;
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    int[3] x;
+    int[3]* y = &x;
+    int* z = y;
+    int[] sub = y;
+    int[3] y1 = y[1];
+    int z1 = z[1];
+    int* xx = &x + 1;
+    int[3]* yy = (int[3]*)(xx);
+    int* zz = yy - 1;
+    printf("%p = %p = %p, %p != %p\n", y, z, zz, &(*y)[1], xx);
+    x[1] = 123;
+    printf("%d = %d\n", x[1], z[1]);
+}
+
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %y = alloca ptr, align 8
+  %z = alloca ptr, align 8
+  %sub = alloca %"int[]", align 8
+  %y1 = alloca [3 x i32], align 4
+  %z1 = alloca i32, align 4
+  %xx = alloca ptr, align 8
+  %yy = alloca ptr, align 8
+  %zz = alloca ptr, align 8
+  store i32 0, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  store ptr %x, ptr %y, align 8
+  %0 = load ptr, ptr %y, align 8
+  store ptr %0, ptr %z, align 8
+  %1 = load ptr, ptr %y, align 8
+  %2 = insertvalue %"int[]" undef, ptr %1, 0
+  %3 = insertvalue %"int[]" %2, i64 3, 1
+  store %"int[]" %3, ptr %sub, align 8
+  %4 = load ptr, ptr %y, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %4, i64 12
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y1, ptr align 4 %ptradd2, i32 12, i1 false)
+  %5 = load ptr, ptr %z, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %5, i64 4
+  %6 = load i32, ptr %ptradd3, align 4
+  store i32 %6, ptr %z1, align 4
+  %ptradd_any = getelementptr i8, ptr %x, i64 12
+  store ptr %ptradd_any, ptr %xx, align 8
+  %7 = load ptr, ptr %xx, align 8
+  store ptr %7, ptr %yy, align 8
+  %8 = load ptr, ptr %yy, align 8
+  %ptradd_any4 = getelementptr i8, ptr %8, i64 -12
+  store ptr %ptradd_any4, ptr %zz, align 8
+  %9 = load ptr, ptr %y, align 8
+  %ptradd5 = getelementptr inbounds i8, ptr %9, i64 4
+  %10 = load ptr, ptr %y, align 8
+  %11 = load ptr, ptr %z, align 8
+  %12 = load ptr, ptr %zz, align 8
+  %13 = load ptr, ptr %xx, align 8
+  call void (ptr, ...) @printf(ptr @.str, ptr %10, ptr %11, ptr %12, ptr %ptradd5, ptr %13)
+  %ptradd6 = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 123, ptr %ptradd6, align 4
+  %ptradd7 = getelementptr inbounds i8, ptr %x, i64 4
+  %14 = load ptr, ptr %z, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %14, i64 4
+  %15 = load i32, ptr %ptradd7, align 4
+  %16 = load i32, ptr %ptradd8, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %15, i32 %16)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/pointers/const_pointer.c3t b/test/test_suite7/pointers/const_pointer.c3t
new file mode 100644
index 000000000..c1ac447c1
--- /dev/null
+++ b/test/test_suite7/pointers/const_pointer.c3t
@@ -0,0 +1,16 @@
+// #target: macos-x64
+
+module const_pointer;
+
+double foo @private = 17;
+double bar @private = 12.0;
+float xx @private = 12.0;
+
+void*[3] data @private = { &foo, &bar, &xx };
+
+/* #expect: const_pointer.ll
+
+@const_pointer.foo = internal global double 1.700000e+01, align 8
+@const_pointer.bar = internal global double 1.200000e+01, align 8
+@const_pointer.xx = internal global float 1.200000e+01, align 4
+@const_pointer.data = internal unnamed_addr global [3 x ptr] [ptr @const_pointer.foo, ptr @const_pointer.bar, ptr @const_pointer.xx], align 16
diff --git a/test/test_suite7/pointers/const_ref.c3t b/test/test_suite7/pointers/const_ref.c3t
new file mode 100644
index 000000000..13d75b378
--- /dev/null
+++ b/test/test_suite7/pointers/const_ref.c3t
@@ -0,0 +1,25 @@
+// #target: macos-x64
+module test;
+const int[?] X = (int[?]) { 1, 2, 3 };
+int[?] y = (int[?]) { 1, 2, 3 };
+
+fn int main()
+{
+	var $z = { &y, "hello" };
+	(*$z[0])[1] = 4;
+	assert(y[1] == 4);
+	return 0;
+}
+/* #expect: test.ll
+
+@test.X = local_unnamed_addr constant [3 x i32] [i32 1, i32 2, i32 3], align 4
+@test.y = global [3 x i32] [i32 1, i32 2, i32 3], align 4
+
+define i32 @main() #0 {
+entry:
+  store i32 4, ptr getelementptr inbounds (i8, ptr @test.y, i64 4), align 4
+  %0 = load i32, ptr getelementptr inbounds (i8, ptr @test.y, i64 4), align 4
+  %eq = icmp eq i32 %0, 4
+  call void @llvm.assume(i1 %eq)
+  ret i32 0
+}
diff --git a/test/test_suite7/pointers/pointer_index.c3t b/test/test_suite7/pointers/pointer_index.c3t
new file mode 100644
index 000000000..994021dfc
--- /dev/null
+++ b/test/test_suite7/pointers/pointer_index.c3t
@@ -0,0 +1,77 @@
+// #target: macos-x64
+module pointer_index;
+
+fn void test1(int* x)
+{
+    int a = x[0];
+    int b = *x;
+    int c = x[1];
+    int d = x[-1];
+}
+
+fn void test2(char* x)
+{
+    char a = x[0];
+    char b = *x;
+    char c = x[1];
+}
+
+fn void test3(long* x)
+{
+    long a = x[0];
+    long b = *x;
+    long c = x[1];
+}
+
+/* #expect: pointer_index.ll
+
+define void @pointer_index.test1(ptr %0) #0 {
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %c = alloca i32, align 4
+  %d = alloca i32, align 4
+  %1 = load i32, ptr %0, align 4
+  store i32 %1, ptr %a, align 4
+  %2 = load i32, ptr %0, align 4
+  store i32 %2, ptr %b, align 4
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 4
+  %3 = load i32, ptr %ptradd, align 4
+  store i32 %3, ptr %c, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %0, i64 -4
+  %4 = load i32, ptr %ptradd1, align 4
+  store i32 %4, ptr %d, align 4
+  ret void
+}
+
+; Function Attrs:
+define void @pointer_index.test2(ptr %0) #0 {
+entry:
+  %a = alloca i8, align 1
+  %b = alloca i8, align 1
+  %c = alloca i8, align 1
+  %1 = load i8, ptr %0, align 1
+  store i8 %1, ptr %a, align 1
+  %2 = load i8, ptr %0, align 1
+  store i8 %2, ptr %b, align 1
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 1
+  %3 = load i8, ptr %ptradd, align 1
+  store i8 %3, ptr %c, align 1
+  ret void
+}
+
+; Function Attrs:
+define void @pointer_index.test3(ptr %0) #0 {
+entry:
+  %a = alloca i64, align 8
+  %b = alloca i64, align 8
+  %c = alloca i64, align 8
+  %1 = load i64, ptr %0, align 8
+  store i64 %1, ptr %a, align 8
+  %2 = load i64, ptr %0, align 8
+  store i64 %2, ptr %b, align 8
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 8
+  %3 = load i64, ptr %ptradd, align 8
+  store i64 %3, ptr %c, align 8
+  ret void
+}
diff --git a/test/test_suite7/pointers/subarray_variant_to_ptr.c3t b/test/test_suite7/pointers/subarray_variant_to_ptr.c3t
new file mode 100644
index 000000000..cc9f4d29f
--- /dev/null
+++ b/test/test_suite7/pointers/subarray_variant_to_ptr.c3t
@@ -0,0 +1,86 @@
+// #target: macos-x64
+module foo;
+
+extern fn void printf(char*, ...);
+
+fn void test1(any z)
+{
+    int* w = z.ptr;
+    printf("%d\n", *w);
+}
+
+fn void test2(int[] z)
+{
+    int* w = z.ptr;
+    printf("%d\n", *w);
+}
+
+fn void main()
+{
+    int x = 123;
+    int y = 293483;
+    int[2] w = { 144, 772 };
+    test1(&x);
+    test2(w[..]);
+}
+
+/* #expect: foo.ll
+
+%any = type { ptr, i64 }
+%"int[]" = type { ptr, i64 }
+
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+
+define void @foo.test1(i64 %0, ptr %1) #0 {
+entry:
+  %z = alloca %any, align 8
+  %w = alloca ptr, align 8
+  store i64 %0, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  store ptr %1, ptr %ptradd, align 8
+  %2 = load ptr, ptr %z, align 8
+  store ptr %2, ptr %w, align 8
+  %3 = load ptr, ptr %w, align 8
+  %4 = load i32, ptr %3, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %4)
+  ret void
+}
+
+; Function Attrs:
+define void @foo.test2(ptr %0, i64 %1) #0 {
+entry:
+  %z = alloca %"int[]", align 8
+  %w = alloca ptr, align 8
+  store ptr %0, ptr %z, align 8
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %2 = load ptr, ptr %z, align 8
+  store ptr %2, ptr %w, align 8
+  %3 = load ptr, ptr %w, align 8
+  %4 = load i32, ptr %3, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %4)
+  ret void
+}
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %w = alloca [2 x i32], align 4
+  %taddr = alloca %any, align 8
+  store i32 123, ptr %x, align 4
+  store i32 293483, ptr %y, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %w, ptr align 4 @.__const, i32 8, i1 false)
+  %0 = insertvalue %any undef, ptr %x, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  call void @foo.test1(i64 %lo, ptr %hi)
+  %2 = insertvalue %"int[]" undef, ptr %w, 0
+  %3 = insertvalue %"int[]" %2, i64 2, 1
+  call void @foo.test2(ptr %w, i64 2)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/precedence/required_parens.c3 b/test/test_suite7/precedence/required_parens.c3
new file mode 100644
index 000000000..176469480
--- /dev/null
+++ b/test/test_suite7/precedence/required_parens.c3
@@ -0,0 +1,13 @@
+module foo;
+import std::io;
+
+fn void main()
+{
+    int i = 0;
+    int j = i ^ i | i; // #error: You need to add explicit parentheses to clarify precedence.
+    bool x = i == j == i; // #error: You need to add explicit parentheses to clarify precedence.
+    int k = i >> j << k; // #error: You need to add explicit parentheses to clarify precedence.
+    bool xk = i && j || i;
+    int y = i + j + i;
+    int yy = i * i / i + i - i;
+}
\ No newline at end of file
diff --git a/test/test_suite7/regression/crash_on_right_paren_macro.c3 b/test/test_suite7/regression/crash_on_right_paren_macro.c3
new file mode 100644
index 000000000..9605bf231
--- /dev/null
+++ b/test/test_suite7/regression/crash_on_right_paren_macro.c3
@@ -0,0 +1,6 @@
+macro void hello($b$Bar x; // #error: Expected ')'
+    @hello(1);
+    var $foo = 1;
+    $foo;
+    FOO;
+}
diff --git a/test/test_suite7/safe/deref.c3t b/test/test_suite7/safe/deref.c3t
new file mode 100644
index 000000000..b97045d65
--- /dev/null
+++ b/test/test_suite7/safe/deref.c3t
@@ -0,0 +1,60 @@
+// #safe: yes
+// #target: macos-x64
+module foo;
+
+fn void main()
+{
+	int* x;
+	int y = *x;
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %x = alloca ptr, align 8
+  %y = alloca i32, align 4
+  %taddr = alloca i64, align 8
+  %taddr2 = alloca i64, align 8
+  %varargslots = alloca [2 x %any], align 16
+  %indirectarg = alloca %"any[]", align 8
+  store ptr null, ptr %x, align 8
+  %0 = load ptr, ptr %x, align 8
+  %checknull = icmp eq ptr %0, null
+  %1 = call i1 @llvm.expect.i1(i1 %checknull, i1 false)
+  br i1 %1, label %panic, label %checkok
+
+checkok:                                          ; preds = %entry
+  %2 = ptrtoint ptr %0 to i64
+  %3 = urem i64 %2, 4
+  %4 = icmp ne i64 %3, 0
+  %5 = call i1 @llvm.expect.i1(i1 %4, i1 false)
+  br i1 %5, label %panic1, label %checkok3
+
+checkok3:                                         ; preds = %checkok
+  %6 = load i32, ptr %0, align 4
+  store i32 %6, ptr %y, align 4
+  ret void
+
+panic:                                            ; preds = %entry
+  %7 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %7(ptr @.panic_msg, i64 42, ptr @.file, i64 8, ptr @.func, i64 4, i32 6) #2
+  unreachable
+
+panic1:                                           ; preds = %checkok
+  store i64 4, ptr %taddr, align 8
+  %8 = insertvalue %any undef, ptr %taddr, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store i64 %3, ptr %taddr2, align 8
+  %10 = insertvalue %any undef, ptr %taddr2, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %9, ptr %varargslots, align 16
+  %ptradd = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %11, ptr %ptradd, align 16
+  %12 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %12, i64 2, 1
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(ptr @.panic_msg.1, i64 94, ptr @.file, i64 8, ptr @.func, i64 4, i32 6, ptr byval(%"any[]") align 8 %indirectarg) #2
+  unreachable
+}
+
diff --git a/test/test_suite7/safe/detect_invalid_deref_return.c3 b/test/test_suite7/safe/detect_invalid_deref_return.c3
new file mode 100644
index 000000000..f46ae7540
--- /dev/null
+++ b/test/test_suite7/safe/detect_invalid_deref_return.c3
@@ -0,0 +1,40 @@
+fn int[] test1()
+{
+	int[3] x;
+	return &x; // #error: local variable will be invalid
+}
+
+fn int* test2()
+{
+	int[3] x;
+	return &x[0]; // #error: local variable will be invalid
+}
+
+struct Abc
+{
+	int a;
+	int[3] b;
+}
+
+fn int* test3()
+{
+	Abc x;
+	return &x.a; // #error: local variable will be invalid
+}
+
+fn int* test4()
+{
+	Abc x;
+	return &x.b; // #error: local variable will be invalid
+}
+
+fn int* test5()
+{
+	Abc x;
+	return &x.b[0]; // #error: local variable will be invalid
+}
+
+fn int* test6()
+{
+	return &&1; // #error: temporary value will
+}
diff --git a/test/test_suite7/slices/array_to_const_err.c3 b/test/test_suite7/slices/array_to_const_err.c3
new file mode 100644
index 000000000..b02186039
--- /dev/null
+++ b/test/test_suite7/slices/array_to_const_err.c3
@@ -0,0 +1,8 @@
+module test;
+import std;
+
+fn void main()
+{
+    char[?] z = { 1, 2 };
+    char[] y = z; // #error: Conversions from arrays or vectors
+}
diff --git a/test/test_suite7/slices/array_to_const_slice.c3t b/test/test_suite7/slices/array_to_const_slice.c3t
new file mode 100644
index 000000000..a10fd0699
--- /dev/null
+++ b/test/test_suite7/slices/array_to_const_slice.c3t
@@ -0,0 +1,19 @@
+// #target: macos-x64
+module test;
+import std;
+
+fn void main()
+{
+	char[3] $x = { 1, 2, 5 };
+	char[] y = $x;
+	String $a = "hello";
+    char[2] $b = { 'a', 'b' };
+	var $c = $a +++ $b;
+    String y2 = $c;
+    char[] $bytes = x'0103ff';
+	var $d = $bytes +++ $b;
+    char[] z = $d;
+}
+/* expect: test.ll
+
+feofke
\ No newline at end of file
diff --git a/test/test_suite7/slices/slice_assign.c3t b/test/test_suite7/slices/slice_assign.c3t
new file mode 100644
index 000000000..22346fbea
--- /dev/null
+++ b/test/test_suite7/slices/slice_assign.c3t
@@ -0,0 +1,83 @@
+// #target: macos-x64
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    int[8] x;
+    x[0..1] = 3;
+    x[1..2] = 5;
+    x[5..7] = 52;
+    foreach (i : x)
+    {
+        printf("%d\n", i);
+    }
+    x[0..7] = 123;
+}
+
+/* #expect: test.ll
+
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+
+; Function Attrs:
+declare void @printf(ptr, ...) #0
+
+; Function Attrs:
+define void @test.main() #0 {
+entry:
+  %x = alloca [8 x i32], align 16
+  %.anon = alloca i64, align 8
+  %i = alloca i32, align 4
+  call void @llvm.memset.p0.i64(ptr align 16 %x, i8 0, i64 32, i1 false)
+  store i32 3, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 3, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 5, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i64 8
+  store i32 5, ptr %ptradd2, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %x, i64 20
+  store i32 52, ptr %ptradd3, align 4
+  %ptradd4 = getelementptr inbounds i8, ptr %x, i64 24
+  store i32 52, ptr %ptradd4, align 4
+  %ptradd5 = getelementptr inbounds i8, ptr %x, i64 28
+  store i32 52, ptr %ptradd5, align 4
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.body, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 8, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %x, i64 %1
+  %2 = load i32, ptr %ptroffset, align 4
+  store i32 %2, ptr %i, align 4
+  %3 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %3)
+  %4 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %4, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+loop.exit:                                        ; preds = %loop.cond
+  br label %cond
+cond:                                             ; preds = %assign, %loop.exit
+  %5 = phi i64 [ 0, %loop.exit ], [ %add, %assign ]
+  %lt = icmp slt i64 %5, 8
+  br i1 %lt, label %assign, label %exit
+assign:                                           ; preds = %cond
+  %ptroffset6 = getelementptr inbounds [4 x i8], ptr %x, i64 %5
+  store i32 123, ptr %ptroffset6, align 4
+  %add = add i64 %5, 1
+  br label %cond
+exit:                                             ; preds = %cond
+  ret void
+}
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/slices/slice_assign2.c3t b/test/test_suite7/slices/slice_assign2.c3t
new file mode 100644
index 000000000..7d5b96b9c
--- /dev/null
+++ b/test/test_suite7/slices/slice_assign2.c3t
@@ -0,0 +1,48 @@
+// #target: macos-x64
+module test;
+
+struct Foo
+{
+	double x;
+	double z;
+	int h;
+}
+struct Bar
+{
+	double z;
+	int h;
+}
+
+fn void main()
+{
+	Foo[3] x = { { 1.3, 2.4, 12 }, { 4.3, 5.6, 13 }, { 0, 0, 0 }};
+	x[..] = x[1];
+	Bar[3] y = { { 1.3, 12 }, { 4.3, 13 }, { 0, 0 }};
+	y[..] = y[1];
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %x = alloca [3 x %Foo], align 16
+  %tempval = alloca %Foo, align 8
+  %y = alloca [3 x %Bar], align 16
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %x, ptr align 16 @.__const, i32 72, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 24
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tempval, ptr align 8 %ptradd, i32 24, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x, ptr align 8 %tempval, i32 24, i1 false)
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 24
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %ptradd1, ptr align 8 %tempval, i32 24, i1 false)
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i64 48
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %ptradd2, ptr align 8 %tempval, i32 24, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %y, ptr align 16 @.__const.1, i32 48, i1 false)
+  %ptradd3 = getelementptr inbounds i8, ptr %y, i64 16
+  %0 = load %Bar, ptr %ptradd3, align 16
+  store %Bar %0, ptr %y, align 8
+  %ptradd4 = getelementptr inbounds i8, ptr %y, i64 16
+  store %Bar %0, ptr %ptradd4, align 8
+  %ptradd5 = getelementptr inbounds i8, ptr %y, i64 32
+  store %Bar %0, ptr %ptradd5, align 8
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_checks.c3t b/test/test_suite7/slices/slice_checks.c3t
new file mode 100644
index 000000000..3380831eb
--- /dev/null
+++ b/test/test_suite7/slices/slice_checks.c3t
@@ -0,0 +1,128 @@
+// #target: macos-x64
+// #safe: yes
+
+module mymodule;
+
+fn void main()
+{
+	int[4] array;
+	int[] slice = &array;
+
+	int[] slice1 = slice[2..5];
+	int[] slice2 = slice[6..];
+	int[] slice3 = slice[0..9];
+	int[] slice4 = slice[5:10];
+	int[] slice5 = slice[1..3];
+	int[] slice6 = slice[2:10];
+}
+
+/* #expect: mymodule.ll
+
+  store i32 0, ptr %array, align 4
+  %ptradd = getelementptr inbounds i8, ptr %array, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %array, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %array, i64 12
+  store i32 0, ptr %ptradd2, align 4
+  %0 = insertvalue %"int[]" undef, ptr %array, 0
+  %1 = insertvalue %"int[]" %0, i64 4, 1
+  store %"int[]" %1, ptr %slice, align 8
+  %2 = load %"int[]", ptr %slice, align 8
+  %3 = extractvalue %"int[]" %2, 0
+  %4 = extractvalue %"int[]" %2, 1
+  %gt = icmp sgt i64 2, %4
+  %5 = call i1 @llvm.expect.i1(i1 %gt, i1 false)
+  br i1 %5, label %panic, label %checkok
+
+checkok:                                          ; preds = %entry
+  %lt = icmp slt i64 %4, 6
+  %6 = call i1 @llvm.expect.i1(i1 %lt, i1 false)
+  br i1 %6, label %panic5, label %checkok12
+
+checkok12:                                        ; preds = %checkok
+  %ptradd13 = getelementptr inbounds i8, ptr %3, i64 8
+  %7 = insertvalue %"int[]" undef, ptr %ptradd13, 0
+  %8 = insertvalue %"int[]" %7, i64 4, 1
+  store %"int[]" %8, ptr %slice1, align 8
+  %9 = load %"int[]", ptr %slice, align 8
+  %10 = extractvalue %"int[]" %9, 0
+  %11 = extractvalue %"int[]" %9, 1
+  %gt14 = icmp sgt i64 6, %11
+  %12 = call i1 @llvm.expect.i1(i1 %gt14, i1 false)
+  br i1 %12, label %panic15, label %checkok22
+
+checkok22:                                        ; preds = %checkok12
+  %size = sub i64 %11, 6
+  %ptradd23 = getelementptr inbounds i8, ptr %10, i64 24
+  %13 = insertvalue %"int[]" undef, ptr %ptradd23, 0
+  %14 = insertvalue %"int[]" %13, i64 %size, 1
+  store %"int[]" %14, ptr %slice2, align 8
+  %15 = load %"int[]", ptr %slice, align 8
+  %16 = extractvalue %"int[]" %15, 0
+  %17 = extractvalue %"int[]" %15, 1
+  %gt24 = icmp sgt i64 0, %17
+  %18 = call i1 @llvm.expect.i1(i1 %gt24, i1 false)
+  br i1 %18, label %panic25, label %checkok32
+
+checkok32:                                        ; preds = %checkok22
+  %lt33 = icmp slt i64 %17, 10
+  %19 = call i1 @llvm.expect.i1(i1 %lt33, i1 false)
+  br i1 %19, label %panic34, label %checkok41
+
+checkok41:                                        ; preds = %checkok32
+  %20 = insertvalue %"int[]" undef, ptr %16, 0
+  %21 = insertvalue %"int[]" %20, i64 10, 1
+  store %"int[]" %21, ptr %slice3, align 8
+  %22 = load %"int[]", ptr %slice, align 8
+  %23 = extractvalue %"int[]" %22, 0
+  %24 = extractvalue %"int[]" %22, 1
+  %gt42 = icmp sgt i64 5, %24
+  %25 = call i1 @llvm.expect.i1(i1 %gt42, i1 false)
+  br i1 %25, label %panic43, label %checkok50
+
+checkok50:                                        ; preds = %checkok41
+  %lt51 = icmp slt i64 %24, 15
+  %26 = call i1 @llvm.expect.i1(i1 %lt51, i1 false)
+  br i1 %26, label %panic52, label %checkok59
+
+checkok59:                                        ; preds = %checkok50
+  %ptradd60 = getelementptr inbounds i8, ptr %23, i64 20
+  %27 = insertvalue %"int[]" undef, ptr %ptradd60, 0
+  %28 = insertvalue %"int[]" %27, i64 10, 1
+  store %"int[]" %28, ptr %slice4, align 8
+  %29 = load %"int[]", ptr %slice, align 8
+  %30 = extractvalue %"int[]" %29, 0
+  %31 = extractvalue %"int[]" %29, 1
+  %gt61 = icmp sgt i64 1, %31
+  %32 = call i1 @llvm.expect.i1(i1 %gt61, i1 false)
+  br i1 %32, label %panic62, label %checkok69
+
+checkok69:                                        ; preds = %checkok59
+  %lt70 = icmp slt i64 %31, 4
+  %33 = call i1 @llvm.expect.i1(i1 %lt70, i1 false)
+  br i1 %33, label %panic71, label %checkok78
+
+checkok78:                                        ; preds = %checkok69
+  %ptradd79 = getelementptr inbounds i8, ptr %30, i64 4
+  %34 = insertvalue %"int[]" undef, ptr %ptradd79, 0
+  %35 = insertvalue %"int[]" %34, i64 3, 1
+  store %"int[]" %35, ptr %slice5, align 8
+  %36 = load %"int[]", ptr %slice, align 8
+  %37 = extractvalue %"int[]" %36, 0
+  %38 = extractvalue %"int[]" %36, 1
+  %gt80 = icmp sgt i64 2, %38
+  %39 = call i1 @llvm.expect.i1(i1 %gt80, i1 false)
+  br i1 %39, label %panic81, label %checkok88
+
+checkok88:                                        ; preds = %checkok78
+  %lt89 = icmp slt i64 %38, 12
+  %40 = call i1 @llvm.expect.i1(i1 %lt89, i1 false)
+  br i1 %40, label %panic90, label %checkok97
+
+checkok97:                                        ; preds = %checkok88
+  %ptradd98 = getelementptr inbounds i8, ptr %37, i64 8
+  %41 = insertvalue %"int[]" undef, ptr %ptradd98, 0
+  %42 = insertvalue %"int[]" %41, i64 10, 1
+  store %"int[]" %42, ptr %slice6, align 8
+  ret void
diff --git a/test/test_suite7/slices/slice_comparison.c3t b/test/test_suite7/slices/slice_comparison.c3t
new file mode 100644
index 000000000..8fce3e616
--- /dev/null
+++ b/test/test_suite7/slices/slice_comparison.c3t
@@ -0,0 +1,232 @@
+// #target: macos-x64
+
+module mymodule;
+
+extern fn void printf(char *, ...);
+
+fn void main()
+{
+
+    char[] y = "hodo";
+    char[] z = "hodo";
+    if (y == "hodo")
+    {
+        printf("This works\n");
+    }
+    if (y == z)
+    {
+        printf("This works too\n");
+    }
+    switch (y)
+    {
+        case "mixx":
+            printf("Wut\n");
+        case "hodot":
+            printf("Nope\n");
+        case "hodo":
+            printf("Winning!\n");
+        default:
+            printf("Hodohell\n");
+    }
+
+}
+
+/* #expect: mymodule.ll
+
+
+define void @mymodule.main() #0 {
+entry:
+  %y = alloca %"char[]", align 8
+  %z = alloca %"char[]", align 8
+  %cmp.idx = alloca i64, align 8
+  %cmp.idx5 = alloca i64, align 8
+  %switch = alloca %"char[]", align 8
+  %cmp.idx18 = alloca i64, align 8
+  %cmp.idx29 = alloca i64, align 8
+  %cmp.idx42 = alloca i64, align 8
+  store %"char[]" { ptr @.str, i64 4 }, ptr %y, align 8
+  store %"char[]" { ptr @.str.1, i64 4 }, ptr %z, align 8
+  %0 = load %"char[]", ptr %y, align 8
+  %1 = extractvalue %"char[]" %0, 1
+  %2 = extractvalue %"char[]" %0, 0
+  %eq = icmp eq i64 %1, 4
+  br i1 %eq, label %slice_cmp_values, label %slice_cmp_exit
+
+slice_cmp_values:                                 ; preds = %entry
+  store i64 0, ptr %cmp.idx, align 8
+  br label %slice_loop_start
+
+slice_loop_start:                                 ; preds = %slice_loop_comparison, %slice_cmp_values
+  %3 = load i64, ptr %cmp.idx, align 8
+  %lt = icmp slt i64 %3, %1
+  br i1 %lt, label %slice_loop_comparison, label %slice_cmp_exit
+
+slice_loop_comparison:                            ; preds = %slice_loop_start
+  %ptradd = getelementptr inbounds i8, ptr %2, i64 %3
+  %ptradd1 = getelementptr inbounds i8, ptr @.str.2, i64 %3
+  %4 = load i8, ptr %ptradd, align 1
+  %5 = load i8, ptr %ptradd1, align 1
+  %eq2 = icmp eq i8 %4, %5
+  %6 = add i64 %3, 1
+  store i64 %6, ptr %cmp.idx, align 8
+  br i1 %eq2, label %slice_loop_start, label %slice_cmp_exit
+
+slice_cmp_exit:                                   ; preds = %slice_loop_comparison, %slice_loop_start, %entry
+  %slice_cmp_phi = phi i1 [ true, %slice_loop_start ], [ false, %entry ], [ false, %slice_loop_comparison ]
+  br i1 %slice_cmp_phi, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %slice_cmp_exit
+  call void (ptr, ...) @printf(ptr @.str.3)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %slice_cmp_exit
+  %7 = load %"char[]", ptr %y, align 8
+  %8 = load %"char[]", ptr %z, align 8
+  %9 = extractvalue %"char[]" %7, 1
+  %10 = extractvalue %"char[]" %8, 1
+  %11 = extractvalue %"char[]" %7, 0
+  %12 = extractvalue %"char[]" %8, 0
+  %eq3 = icmp eq i64 %9, %10
+  br i1 %eq3, label %slice_cmp_values4, label %slice_cmp_exit12
+
+slice_cmp_values4:                                ; preds = %if.exit
+  store i64 0, ptr %cmp.idx5, align 8
+  br label %slice_loop_start6
+
+slice_loop_start6:                                ; preds = %slice_loop_comparison8, %slice_cmp_values4
+  %13 = load i64, ptr %cmp.idx5, align 8
+  %lt7 = icmp slt i64 %13, %9
+  br i1 %lt7, label %slice_loop_comparison8, label %slice_cmp_exit12
+
+slice_loop_comparison8:                           ; preds = %slice_loop_start6
+  %ptradd9 = getelementptr inbounds i8, ptr %11, i64 %13
+  %ptradd10 = getelementptr inbounds i8, ptr %12, i64 %13
+  %14 = load i8, ptr %ptradd9, align 1
+  %15 = load i8, ptr %ptradd10, align 1
+  %eq11 = icmp eq i8 %14, %15
+  %16 = add i64 %13, 1
+  store i64 %16, ptr %cmp.idx5, align 8
+  br i1 %eq11, label %slice_loop_start6, label %slice_cmp_exit12
+
+slice_cmp_exit12:                                 ; preds = %slice_loop_comparison8, %slice_loop_start6, %if.exit
+  %slice_cmp_phi13 = phi i1 [ true, %slice_loop_start6 ], [ false, %if.exit ], [ false, %slice_loop_comparison8 ]
+  br i1 %slice_cmp_phi13, label %if.then14, label %if.exit15
+
+if.then14:                                        ; preds = %slice_cmp_exit12
+  call void (ptr, ...) @printf(ptr @.str.4)
+  br label %if.exit15
+
+if.exit15:                                        ; preds = %if.then14, %slice_cmp_exit12
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %switch, ptr align 8 %y, i32 16, i1 false)
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %if.exit15
+  %17 = load %"char[]", ptr %switch, align 8
+  %18 = extractvalue %"char[]" %17, 1
+  %19 = extractvalue %"char[]" %17, 0
+  %eq16 = icmp eq i64 4, %18
+  br i1 %eq16, label %slice_cmp_values17, label %slice_cmp_exit25
+
+slice_cmp_values17:                               ; preds = %switch.entry
+  store i64 0, ptr %cmp.idx18, align 8
+  br label %slice_loop_start19
+
+slice_loop_start19:                               ; preds = %slice_loop_comparison21, %slice_cmp_values17
+  %20 = load i64, ptr %cmp.idx18, align 8
+  %lt20 = icmp slt i64 %20, 4
+  br i1 %lt20, label %slice_loop_comparison21, label %slice_cmp_exit25
+
+slice_loop_comparison21:                          ; preds = %slice_loop_start19
+  %ptradd22 = getelementptr inbounds i8, ptr @.str.5, i64 %20
+  %ptradd23 = getelementptr inbounds i8, ptr %19, i64 %20
+  %21 = load i8, ptr %ptradd22, align 1
+  %22 = load i8, ptr %ptradd23, align 1
+  %eq24 = icmp eq i8 %21, %22
+  %23 = add i64 %20, 1
+  store i64 %23, ptr %cmp.idx18, align 8
+  br i1 %eq24, label %slice_loop_start19, label %slice_cmp_exit25
+
+slice_cmp_exit25:                                 ; preds = %slice_loop_comparison21, %slice_loop_start19, %switch.entry
+  %slice_cmp_phi26 = phi i1 [ true, %slice_loop_start19 ], [ false, %switch.entry ], [ false, %slice_loop_comparison21 ]
+  br i1 %slice_cmp_phi26, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %slice_cmp_exit25
+  call void (ptr, ...) @printf(ptr @.str.6)
+  br label %switch.exit
+
+next_if:                                          ; preds = %slice_cmp_exit25
+  %24 = extractvalue %"char[]" %17, 1
+  %25 = extractvalue %"char[]" %17, 0
+  %eq27 = icmp eq i64 5, %24
+  br i1 %eq27, label %slice_cmp_values28, label %slice_cmp_exit36
+
+slice_cmp_values28:                               ; preds = %next_if
+  store i64 0, ptr %cmp.idx29, align 8
+  br label %slice_loop_start30
+
+slice_loop_start30:                               ; preds = %slice_loop_comparison32, %slice_cmp_values28
+  %26 = load i64, ptr %cmp.idx29, align 8
+  %lt31 = icmp slt i64 %26, 5
+  br i1 %lt31, label %slice_loop_comparison32, label %slice_cmp_exit36
+
+slice_loop_comparison32:                          ; preds = %slice_loop_start30
+  %ptradd33 = getelementptr inbounds i8, ptr @.str.7, i64 %26
+  %ptradd34 = getelementptr inbounds i8, ptr %25, i64 %26
+  %27 = load i8, ptr %ptradd33, align 1
+  %28 = load i8, ptr %ptradd34, align 1
+  %eq35 = icmp eq i8 %27, %28
+  %29 = add i64 %26, 1
+  store i64 %29, ptr %cmp.idx29, align 8
+  br i1 %eq35, label %slice_loop_start30, label %slice_cmp_exit36
+
+slice_cmp_exit36:                                 ; preds = %slice_loop_comparison32, %slice_loop_start30, %next_if
+  %slice_cmp_phi37 = phi i1 [ true, %slice_loop_start30 ], [ false, %next_if ], [ false, %slice_loop_comparison32 ]
+  br i1 %slice_cmp_phi37, label %switch.case38, label %next_if39
+
+switch.case38:                                    ; preds = %slice_cmp_exit36
+  call void (ptr, ...) @printf(ptr @.str.8)
+  br label %switch.exit
+
+next_if39:                                        ; preds = %slice_cmp_exit36
+  %30 = extractvalue %"char[]" %17, 1
+  %31 = extractvalue %"char[]" %17, 0
+  %eq40 = icmp eq i64 4, %30
+  br i1 %eq40, label %slice_cmp_values41, label %slice_cmp_exit49
+
+slice_cmp_values41:                               ; preds = %next_if39
+  store i64 0, ptr %cmp.idx42, align 8
+  br label %slice_loop_start43
+
+slice_loop_start43:                               ; preds = %slice_loop_comparison45, %slice_cmp_values41
+  %32 = load i64, ptr %cmp.idx42, align 8
+  %lt44 = icmp slt i64 %32, 4
+  br i1 %lt44, label %slice_loop_comparison45, label %slice_cmp_exit49
+
+slice_loop_comparison45:                          ; preds = %slice_loop_start43
+  %ptradd46 = getelementptr inbounds i8, ptr @.str.9, i64 %32
+  %ptradd47 = getelementptr inbounds i8, ptr %31, i64 %32
+  %33 = load i8, ptr %ptradd46, align 1
+  %34 = load i8, ptr %ptradd47, align 1
+  %eq48 = icmp eq i8 %33, %34
+  %35 = add i64 %32, 1
+  store i64 %35, ptr %cmp.idx42, align 8
+  br i1 %eq48, label %slice_loop_start43, label %slice_cmp_exit49
+
+slice_cmp_exit49:                                 ; preds = %slice_loop_comparison45, %slice_loop_start43, %next_if39
+  %slice_cmp_phi50 = phi i1 [ true, %slice_loop_start43 ], [ false, %next_if39 ], [ false, %slice_loop_comparison45 ]
+  br i1 %slice_cmp_phi50, label %switch.case51, label %next_if52
+
+switch.case51:                                    ; preds = %slice_cmp_exit49
+  call void (ptr, ...) @printf(ptr @.str.10)
+  br label %switch.exit
+
+next_if52:                                        ; preds = %slice_cmp_exit49
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if52
+  call void (ptr, ...) @printf(ptr @.str.11)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case51, %switch.case38, %switch.case
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_conv_byte.c3t b/test/test_suite7/slices/slice_conv_byte.c3t
new file mode 100644
index 000000000..9bba5c8b9
--- /dev/null
+++ b/test/test_suite7/slices/slice_conv_byte.c3t
@@ -0,0 +1,51 @@
+// #target: macos-x64
+module test;
+
+fn int main()
+{
+	char[] x = x'00aabbcc';
+	bool text = x == x'00aabbcc';
+	char[] $x = x'00aabbcc';
+	bool $y = $x == x'00aabbcc';
+    return (int)$y;
+}
+
+/* #expect: test.ll
+
+define i32 @main() #0 {
+entry:
+  %x = alloca %"char[]", align 8
+  %text = alloca i8, align 1
+  %cmp.idx = alloca i64, align 8
+  store %"char[]" { ptr @.bytes, i64 4 }, ptr %x, align 8
+  %0 = load %"char[]", ptr %x, align 8
+  %1 = extractvalue %"char[]" %0, 1
+  %2 = extractvalue %"char[]" %0, 0
+  %eq = icmp eq i64 %1, 4
+  br i1 %eq, label %slice_cmp_values, label %slice_cmp_exit
+
+slice_cmp_values:                                 ; preds = %entry
+  store i64 0, ptr %cmp.idx, align 8
+  br label %slice_loop_start
+
+slice_loop_start:                                 ; preds = %slice_loop_comparison, %slice_cmp_values
+  %3 = load i64, ptr %cmp.idx, align 8
+  %lt = icmp slt i64 %3, %1
+  br i1 %lt, label %slice_loop_comparison, label %slice_cmp_exit
+
+slice_loop_comparison:                            ; preds = %slice_loop_start
+  %ptradd = getelementptr inbounds i8, ptr %2, i64 %3
+  %ptradd1 = getelementptr inbounds i8, ptr @.bytes.1, i64 %3
+  %4 = load i8, ptr %ptradd, align 1
+  %5 = load i8, ptr %ptradd1, align 1
+  %eq2 = icmp eq i8 %4, %5
+  %6 = add i64 %3, 1
+  store i64 %6, ptr %cmp.idx, align 8
+  br i1 %eq2, label %slice_loop_start, label %slice_cmp_exit
+
+slice_cmp_exit:                                   ; preds = %slice_loop_comparison, %slice_loop_start, %entry
+  %slice_cmp_phi = phi i1 [ true, %slice_loop_start ], [ false, %entry ], [ false, %slice_loop_comparison ]
+  %7 = zext i1 %slice_cmp_phi to i8
+  store i8 %7, ptr %text, align 1
+  ret i32 1
+}
\ No newline at end of file
diff --git a/test/test_suite7/slices/slice_init.c3t b/test/test_suite7/slices/slice_init.c3t
new file mode 100644
index 000000000..3a56d4d68
--- /dev/null
+++ b/test/test_suite7/slices/slice_init.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module foo;
+fn float[20] get()
+{
+    float[20] y;
+    for (int i = 0; i < 20; i++) y[i] = (float)i * i + 1;
+    return y;
+}
+fn void main()
+{
+	float[<4>] x = get()[1..^16];
+	float[4] y = get()[2..^15];
+}
+
+/* #expect: foo.ll
+
+define void @foo.main() #0 {
+entry:
+  %x = alloca <4 x float>, align 16
+  %sretparam = alloca [20 x float], align 4
+  %y = alloca [4 x float], align 16
+  %sretparam1 = alloca [20 x float], align 4
+  call void @foo.get(ptr sret([20 x float]) align 4 %sretparam)
+  %ptradd = getelementptr inbounds i8, ptr %sretparam, i64 4
+  %0 = insertvalue %"float[]" undef, ptr %ptradd, 0
+  %1 = insertvalue %"float[]" %0, i64 4, 1
+  %2 = extractvalue %"float[]" %1, 0
+  %3 = load <4 x float>, ptr %2, align 4
+  store <4 x float> %3, ptr %x, align 16
+  call void @foo.get(ptr sret([20 x float]) align 4 %sretparam1)
+  %ptradd2 = getelementptr inbounds i8, ptr %sretparam1, i64 8
+  %4 = insertvalue %"float[]" undef, ptr %ptradd2, 0
+  %5 = insertvalue %"float[]" %4, i64 4, 1
+  %6 = extractvalue %"float[]" %5, 0
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %y, ptr align 4 %6, i32 16, i1 false)
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_inline.c3t b/test/test_suite7/slices/slice_inline.c3t
new file mode 100644
index 000000000..8a4ca0027
--- /dev/null
+++ b/test/test_suite7/slices/slice_inline.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+module foo;
+struct Data{
+    inline char[32] data;
+}
+fn void Data.not_working(self) {
+    self[:self.data.len];
+}
+
+fn void Data.working(self) {
+    self.data[:self.data.len];
+}
+fn void main(String[] args) {
+    Data d;
+    d.not_working();
+    d.working();
+}
+
+/* #expect: foo.ll
+
+define void @foo.Data.not_working(ptr byval(%Data) align 8 %0) #0 {
+entry:
+  %1 = insertvalue %"char[]" undef, ptr %0, 0
+  %2 = insertvalue %"char[]" %1, i64 32, 1
+  ret void
+}
+; Function Attrs: nounwind uwtable
+define void @foo.Data.working(ptr byval(%Data) align 8 %0) #0 {
+entry:
+  %1 = insertvalue %"char[]" undef, ptr %0, 0
+  %2 = insertvalue %"char[]" %1, i64 32, 1
+  ret void
+}
+
diff --git a/test/test_suite7/slices/slice_len_error.c3 b/test/test_suite7/slices/slice_len_error.c3
new file mode 100644
index 000000000..a40a88097
--- /dev/null
+++ b/test/test_suite7/slices/slice_len_error.c3
@@ -0,0 +1,21 @@
+int[8][8] a;
+fn void main()
+{
+   a[2..3];
+    a[2:1];
+    a[..3];
+    a[2..];
+    a[..];
+    a[2:1];
+    a[:4];
+}
+
+fn void test1()
+{
+    a[:]; // #error: not elide
+}
+
+fn void test2()
+{
+    a[2:]; // #error: not elide
+}
\ No newline at end of file
diff --git a/test/test_suite7/slices/slice_negative_len.c3 b/test/test_suite7/slices/slice_negative_len.c3
new file mode 100644
index 000000000..30073685a
--- /dev/null
+++ b/test/test_suite7/slices/slice_negative_len.c3
@@ -0,0 +1,87 @@
+fn void test()
+{
+    int[3] x = { 1, 2, 3};
+    int[] z = x[2..2];
+    z = x[2..1]; // #error: greater than the end index
+}
+
+fn void test2()
+{
+    int[3] x = { 1, 2, 3};
+    int[] z = x[^2..^2];
+    z = x[^3..];
+    z = x[^1..^2]; // #error: greater than the end index
+}
+
+fn void test3()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[..4]; // #error: End index out of bounds, was 4, exceeding
+}
+
+fn void test4()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[..^1];
+    z = x[..^-1]; // #error: Negative numbers are not allowed when indexing from the end.
+}
+
+fn void test5()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[..^4]; // #error: An index may only be negative
+}
+
+fn void test6()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[3..]; // #error: Index out of bounds: the start index was
+}
+
+fn void test7()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[-1..]; // #error: An index may only be negative
+}
+
+fn void test8()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[^4..]; // #error: An index may only be negative
+}
+
+fn void test9()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[^0..]; // #error: Index out of bounds: the start
+}
+
+fn void test10()
+{
+    int* x = null;
+    x[-10..-3];
+    int[] w = x[0..]; // #error: Omitting end index is not allowed for pointers
+    int[] z = x[^2..]; // #error: Indexing from the end is not allowed for pointers
+    int[] y = x[..^2]; // #error: Indexing from the end is not allowed for pointers
+}
+
+struct Abc
+{
+	int a;
+	char[?] z;
+}
+
+fn void test105()
+{
+	Abc a;
+    int[] w = a.z[0..]; // #error: Omitting end index is not allowed for pointers
+    int[] z = a.z[^2..]; // #error: Indexing from the end is not allowed for pointers
+    int[] y = a.z[..^2]; // #error: Indexing from the end is not allowed for pointers
+    a.z[-10..-3]; // #error: An index may only be negative for pointers
+}
+
+fn void test11()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] z = x[..^0]; // #error: End index out of bounds, was 3, exceeding
+}
diff --git a/test/test_suite7/slices/slice_offset.c3t b/test/test_suite7/slices/slice_offset.c3t
new file mode 100644
index 000000000..7bb061d9e
--- /dev/null
+++ b/test/test_suite7/slices/slice_offset.c3t
@@ -0,0 +1,20 @@
+// #target: macos-x64
+fn void test()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] y = x[1..2];
+}
+
+/* #expect: slice_offset.ll
+
+define void @slice_offset.test() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %y = alloca %"int[]", align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 12, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  %0 = insertvalue %"int[]" undef, ptr %ptradd, 0
+  %1 = insertvalue %"int[]" %0, i64 2, 1
+  store %"int[]" %1, ptr %y, align 8
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_offset_neg_end.c3t b/test/test_suite7/slices/slice_offset_neg_end.c3t
new file mode 100644
index 000000000..bb3333398
--- /dev/null
+++ b/test/test_suite7/slices/slice_offset_neg_end.c3t
@@ -0,0 +1,20 @@
+// #target: macos-x64
+fn void test()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] y = x[1..^1];
+}
+
+/* #expect: slice_offset_neg_end.ll
+
+define void @slice_offset_neg_end.test() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %y = alloca %"int[]", align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 12, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  %0 = insertvalue %"int[]" undef, ptr %ptradd, 0
+  %1 = insertvalue %"int[]" %0, i64 2, 1
+  store %"int[]" %1, ptr %y, align 8
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_offset_neg_start.c3t b/test/test_suite7/slices/slice_offset_neg_start.c3t
new file mode 100644
index 000000000..18b1faea2
--- /dev/null
+++ b/test/test_suite7/slices/slice_offset_neg_start.c3t
@@ -0,0 +1,20 @@
+// #target: macos-x64
+fn void test()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] y = x[^2..1];
+}
+
+/* #expect: slice_offset_neg_start.ll
+
+define void @slice_offset_neg_start.test() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %y = alloca %"int[]", align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 12, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  %0 = insertvalue %"int[]" undef, ptr %ptradd, 0
+  %1 = insertvalue %"int[]" %0, i64 1, 1
+  store %"int[]" %1, ptr %y, align 8
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_optional.c3t b/test/test_suite7/slices/slice_optional.c3t
new file mode 100644
index 000000000..bc6545de6
--- /dev/null
+++ b/test/test_suite7/slices/slice_optional.c3t
@@ -0,0 +1,41 @@
+// #target: macos-x64
+module test;
+fn void main() {
+  int[]! a = {1, 2};
+  int! b = a[0];
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %a = alloca %"int[]", align 8
+  %a.f = alloca i64, align 8
+  %literal = alloca [2 x i32], align 4
+  %b = alloca i32, align 4
+  %b.f = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const, i32 8, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[]" %0, i64 2, 1
+  store %"int[]" %1, ptr %a, align 8
+  store i64 0, ptr %a.f, align 8
+  %optval = load i64, ptr %a.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %entry
+  store i64 %optval, ptr %b.f, align 8
+  br label %after_assign
+
+after_check:                                      ; preds = %entry
+  %3 = load ptr, ptr %a, align 8
+  %4 = load i32, ptr %3, align 4
+  store i32 %4, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %after_check, %assign_optional
+  ret void
+}
+
diff --git a/test/test_suite7/slices/slice_optional_index.c3t b/test/test_suite7/slices/slice_optional_index.c3t
new file mode 100644
index 000000000..a1be9cd28
--- /dev/null
+++ b/test/test_suite7/slices/slice_optional_index.c3t
@@ -0,0 +1,120 @@
+// #target: macos-x64
+module test;
+
+fn void test()
+{
+	int[] a = { 1, 2, 3 };
+	for (int i = 0; i < 3; i++)
+	{
+		int! b = i == 0 ? SearchResult.MISSING? : i;
+		int[]! y = a[:b];
+		int[]! w = a[b..];
+		int! z = a[b];
+	}
+}
+
+/* #expect: test.ll
+
+  store %"int[]" %1, ptr %a, align 8
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %after_assign15, %entry
+  %2 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %2, 3
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %3 = load i32, ptr %i, align 4
+  %eq = icmp eq i32 %3, 0
+  br i1 %eq, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %loop.body
+  store i64 ptrtoint (ptr @"std.core.builtin.SearchResult$MISSING" to i64), ptr %b.f, align 8
+  br label %after_assign
+
+cond.rhs:                                         ; preds = %loop.body
+  %4 = load i32, ptr %i, align 4
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs
+  store i32 %4, ptr %b, align 4
+  store i64 0, ptr %b.f, align 8
+  br label %after_assign
+
+after_assign:                                     ; preds = %cond.phi, %cond.lhs
+  %5 = load %"int[]", ptr %a, align 8
+  %6 = extractvalue %"int[]" %5, 0
+  %optval = load i64, ptr %b.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %after_assign
+  store i64 %optval, ptr %y.f, align 8
+  br label %after_assign1
+
+after_check:                                      ; preds = %after_assign
+  %8 = load i32, ptr %b, align 4
+  %sext = sext i32 %8 to i64
+  %add = add i64 0, %sext
+  %size = sub i64 %add, 0
+  %9 = insertvalue %"int[]" undef, ptr %6, 0
+  %10 = insertvalue %"int[]" %9, i64 %size, 1
+  store %"int[]" %10, ptr %y, align 8
+  store i64 0, ptr %y.f, align 8
+  br label %after_assign1
+
+after_assign1:                                    ; preds = %after_check, %assign_optional
+  %11 = load %"int[]", ptr %a, align 8
+  %12 = extractvalue %"int[]" %11, 0
+  %optval2 = load i64, ptr %b.f, align 8
+  %not_err3 = icmp eq i64 %optval2, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %13, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %after_assign1
+  store i64 %optval2, ptr %w.f, align 8
+  br label %after_assign8
+
+after_check5:                                     ; preds = %after_assign1
+  %14 = load i32, ptr %b, align 4
+  %sext6 = sext i32 %14 to i64
+  %15 = extractvalue %"int[]" %11, 1
+  %size7 = sub i64 %15, %sext6
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %12, i64 %sext6
+  %16 = insertvalue %"int[]" undef, ptr %ptroffset, 0
+  %17 = insertvalue %"int[]" %16, i64 %size7, 1
+  store %"int[]" %17, ptr %w, align 8
+  store i64 0, ptr %w.f, align 8
+  br label %after_assign8
+
+after_assign8:                                    ; preds = %after_check5, %assign_optional4
+  %18 = load ptr, ptr %a, align 8
+  %optval9 = load i64, ptr %b.f, align 8
+  %not_err10 = icmp eq i64 %optval9, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err10, i1 true)
+  br i1 %19, label %after_check12, label %assign_optional11
+
+assign_optional11:                                ; preds = %after_assign8
+  store i64 %optval9, ptr %z.f, align 8
+  br label %after_assign15
+
+after_check12:                                    ; preds = %after_assign8
+  %20 = load i32, ptr %b, align 4
+  %sext13 = sext i32 %20 to i64
+  %ptroffset14 = getelementptr inbounds [4 x i8], ptr %18, i64 %sext13
+  %21 = load i32, ptr %ptroffset14, align 4
+  store i32 %21, ptr %z, align 4
+  store i64 0, ptr %z.f, align 8
+  br label %after_assign15
+
+after_assign15:                                   ; preds = %after_check12, %assign_optional11
+  %22 = load i32, ptr %i, align 4
+  %add16 = add i32 %22, 1
+  store i32 %add16, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_start.c3t b/test/test_suite7/slices/slice_start.c3t
new file mode 100644
index 000000000..91a82af65
--- /dev/null
+++ b/test/test_suite7/slices/slice_start.c3t
@@ -0,0 +1,19 @@
+// #target: macos-x64
+fn void test()
+{
+    int[3] x = { 1, 2, 3 };
+    int[] y = x[..];
+}
+
+/* #expect: slice_start.ll
+
+define void @slice_start.test() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %y = alloca %"int[]", align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 12, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %x, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %1, ptr %y, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/slices/slice_syntax.c3 b/test/test_suite7/slices/slice_syntax.c3
new file mode 100644
index 000000000..e4f3f641c
--- /dev/null
+++ b/test/test_suite7/slices/slice_syntax.c3
@@ -0,0 +1,24 @@
+fn void test()
+{
+    int[6] feok2 = { 1, 8, 100, 293, 23982, 34};
+    int[] feok = &feok2;
+    int[] flok = feok2[3..5];
+    int[] flak = flok[1..2];
+    flok = feok2[..5];
+    flok = feok2[..^2];
+    flok = feok2[..];
+    flok = feok2[^3..];
+    flok = feok2[^4..5];
+    flok = feok2[2..^2];
+    flok = feok2[^3..^1];
+    flok = feok2[..];
+    flak = flok[..6];
+    flak = flok[..^2];
+    flak = flok[..];
+    flak = flok[^3..];
+    flak = flok[^4..5];
+    flak = flok[2..^2];
+    flak = flok[^3..^1];
+    int* p = null;
+    // TODO p[-1..20];
+}
\ No newline at end of file
diff --git a/test/test_suite7/slices/slice_to_slice_assign.c3t b/test/test_suite7/slices/slice_to_slice_assign.c3t
new file mode 100644
index 000000000..69c642eb8
--- /dev/null
+++ b/test/test_suite7/slices/slice_to_slice_assign.c3t
@@ -0,0 +1,129 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn void main()
+{
+	int[?] z = { 1, 2, 3, 4, 5, 6, 7 };
+	int[6] y;
+	y[1..3] = z[3..5];
+	io::printfn("%s %s", y, z);
+	y[4..] = z[5..6];
+	io::printfn("%s %s", y, z);
+	int[][] a = { (int[]) { 1 } };
+	int[][] b = { (int[]) { 2 } };
+	io::printfn("%s", a);
+	a[0..0] = b[0..0];
+	io::printfn("%s", a);
+	a[0..0] = y[2..4];
+	io::printfn("%s", a);
+}
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %z = alloca [7 x i32], align 16
+  %y = alloca [6 x i32], align 16
+  %varargslots = alloca [2 x %any], align 16
+  %retparam = alloca i64, align 8
+  %varargslots5 = alloca [2 x %any], align 16
+  %retparam7 = alloca i64, align 8
+  %a = alloca %"int[][]", align 8
+  %literal = alloca [1 x %"int[]"], align 16
+  %literal8 = alloca [1 x i32], align 4
+  %b = alloca %"int[][]", align 8
+  %literal9 = alloca [1 x %"int[]"], align 16
+  %literal10 = alloca [1 x i32], align 4
+  %varargslots11 = alloca [1 x %any], align 16
+  %retparam12 = alloca i64, align 8
+  %varargslots13 = alloca [1 x %any], align 16
+  %retparam14 = alloca i64, align 8
+  %varargslots16 = alloca [1 x %any], align 16
+  %retparam17 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %z, ptr align 16 @.__const, i32 28, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 16 %y, i8 0, i64 24, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 12
+  %0 = insertvalue %"int[]" undef, ptr %ptradd, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 4
+  %2 = insertvalue %"int[]" undef, ptr %ptradd1, 0
+  %3 = insertvalue %"int[]" %2, i64 3, 1
+  %4 = extractvalue %"int[]" %3, 0
+  %5 = extractvalue %"int[]" %1, 0
+  %6 = extractvalue %"int[]" %1, 1
+  %7 = mul i64 %6, 4
+  call void @llvm.memmove.p0.p0.i64(ptr align 4 %4, ptr align 4 %5, i64 %7, i1 false)
+  %8 = insertvalue %any undef, ptr %y, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.a6$int" to i64), 1
+  store %any %9, ptr %varargslots, align 16
+  %10 = insertvalue %any undef, ptr %z, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.a7$int" to i64), 1
+  %ptradd2 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %11, ptr %ptradd2, align 16
+  %12 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 5, ptr %varargslots, i64 2)
+  %ptradd3 = getelementptr inbounds i8, ptr %z, i64 20
+  %13 = insertvalue %"int[]" undef, ptr %ptradd3, 0
+  %14 = insertvalue %"int[]" %13, i64 2, 1
+  %ptradd4 = getelementptr inbounds i8, ptr %y, i64 16
+  %15 = insertvalue %"int[]" undef, ptr %ptradd4, 0
+  %16 = insertvalue %"int[]" %15, i64 2, 1
+  %17 = extractvalue %"int[]" %16, 0
+  %18 = extractvalue %"int[]" %14, 0
+  %19 = extractvalue %"int[]" %14, 1
+  %20 = mul i64 %19, 4
+  call void @llvm.memmove.p0.p0.i64(ptr align 4 %17, ptr align 4 %18, i64 %20, i1 false)
+  %21 = insertvalue %any undef, ptr %y, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.a6$int" to i64), 1
+  store %any %22, ptr %varargslots5, align 16
+  %23 = insertvalue %any undef, ptr %z, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.a7$int" to i64), 1
+  %ptradd6 = getelementptr inbounds i8, ptr %varargslots5, i64 16
+  store %any %24, ptr %ptradd6, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam7, ptr @.str.1, i64 5, ptr %varargslots5, i64 2)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal8, ptr align 4 @.__const.2, i32 4, i1 false)
+  %26 = insertvalue %"int[]" undef, ptr %literal8, 0
+  %27 = insertvalue %"int[]" %26, i64 1, 1
+  store %"int[]" %27, ptr %literal, align 8
+  %28 = insertvalue %"int[][]" undef, ptr %literal, 0
+  %29 = insertvalue %"int[][]" %28, i64 1, 1
+  store %"int[][]" %29, ptr %a, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal10, ptr align 4 @.__const.3, i32 4, i1 false)
+  %30 = insertvalue %"int[]" undef, ptr %literal10, 0
+  %31 = insertvalue %"int[]" %30, i64 1, 1
+  store %"int[]" %31, ptr %literal9, align 8
+  %32 = insertvalue %"int[][]" undef, ptr %literal9, 0
+  %33 = insertvalue %"int[][]" %32, i64 1, 1
+  store %"int[][]" %33, ptr %b, align 8
+  %34 = insertvalue %any undef, ptr %a, 0
+  %35 = insertvalue %any %34, i64 ptrtoint (ptr @"$ct.sa$sa$int" to i64), 1
+  store %any %35, ptr %varargslots11, align 16
+  %36 = call i64 @std.io.printfn(ptr %retparam12, ptr @.str.4, i64 2, ptr %varargslots11, i64 1)
+  %37 = load %"int[][]", ptr %b, align 8
+  %38 = extractvalue %"int[][]" %37, 0
+  %39 = insertvalue %"int[][]" undef, ptr %38, 0
+  %40 = insertvalue %"int[][]" %39, i64 1, 1
+  %41 = load %"int[][]", ptr %a, align 8
+  %42 = extractvalue %"int[][]" %41, 0
+  %43 = insertvalue %"int[][]" undef, ptr %42, 0
+  %44 = insertvalue %"int[][]" %43, i64 1, 1
+  %45 = extractvalue %"int[][]" %44, 0
+  %46 = extractvalue %"int[][]" %40, 0
+  %47 = extractvalue %"int[][]" %40, 1
+  %48 = mul i64 %47, 16
+  call void @llvm.memmove.p0.p0.i64(ptr align 8 %45, ptr align 8 %46, i64 %48, i1 false)
+  %49 = insertvalue %any undef, ptr %a, 0
+  %50 = insertvalue %any %49, i64 ptrtoint (ptr @"$ct.sa$sa$int" to i64), 1
+  store %any %50, ptr %varargslots13, align 16
+  %51 = call i64 @std.io.printfn(ptr %retparam14, ptr @.str.5, i64 2, ptr %varargslots13, i64 1)
+  %ptradd15 = getelementptr inbounds i8, ptr %y, i64 8
+  %52 = insertvalue %"int[]" undef, ptr %ptradd15, 0
+  %53 = insertvalue %"int[]" %52, i64 3, 1
+  %54 = load %"int[][]", ptr %a, align 8
+  %55 = extractvalue %"int[][]" %54, 0
+  store %"int[]" %53, ptr %55, align 8
+  %56 = insertvalue %any undef, ptr %a, 0
+  %57 = insertvalue %any %56, i64 ptrtoint (ptr @"$ct.sa$sa$int" to i64), 1
+  store %any %57, ptr %varargslots16, align 16
+  %58 = call i64 @std.io.printfn(ptr %retparam17, ptr @.str.6, i64 2, ptr %varargslots16, i64 1)
+  ret void
+}
diff --git a/test/test_suite7/slices/slice_to_slice_conv_err.c3t b/test/test_suite7/slices/slice_to_slice_conv_err.c3t
new file mode 100644
index 000000000..593742e0c
--- /dev/null
+++ b/test/test_suite7/slices/slice_to_slice_conv_err.c3t
@@ -0,0 +1,8 @@
+extern fn CInt execvp(CChar* file, CChar*[] argv);
+
+fn int main()
+{
+    ZString[] argv = {"ls", "-l", "-a"};
+    execvp((CChar*)"ls", (CChar*[])argv);
+    return 0;
+}
diff --git a/test/test_suite7/slices/slice_to_slice_vector_assign.c3t b/test/test_suite7/slices/slice_to_slice_vector_assign.c3t
new file mode 100644
index 000000000..abedcf3e3
--- /dev/null
+++ b/test/test_suite7/slices/slice_to_slice_vector_assign.c3t
@@ -0,0 +1,130 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+fn void main()
+{
+	int[<?>] z = { 1, 2, 3, 4, 5, 6, 7 };
+	int[<6>] y;
+	y[1..3] = z[3..5];
+	io::printfn("%s %s", y, z);
+	y[4..] = z[5..6];
+	io::printfn("%s %s", y, z);
+	int[][] a = { (int[]) { 1 } };
+	int[][] b = { (int[]) { 2 } };
+	io::printfn("%s", a);
+	a[0..0] = b[0..0];
+	io::printfn("%s", a);
+	a[0..0] = y[2..4];
+	io::printfn("%s", a);
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %z = alloca <7 x i32>, align 32
+  %y = alloca <6 x i32>, align 32
+  %varargslots = alloca [2 x %any], align 16
+  %retparam = alloca i64, align 8
+  %varargslots5 = alloca [2 x %any], align 16
+  %retparam7 = alloca i64, align 8
+  %a = alloca %"int[][]", align 8
+  %literal = alloca [1 x %"int[]"], align 16
+  %literal8 = alloca [1 x i32], align 4
+  %b = alloca %"int[][]", align 8
+  %literal9 = alloca [1 x %"int[]"], align 16
+  %literal10 = alloca [1 x i32], align 4
+  %varargslots11 = alloca [1 x %any], align 16
+  %retparam12 = alloca i64, align 8
+  %varargslots13 = alloca [1 x %any], align 16
+  %retparam14 = alloca i64, align 8
+  %varargslots16 = alloca [1 x %any], align 16
+  %retparam17 = alloca i64, align 8
+  store <7 x i32> <i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>, ptr %z, align 32
+  store <6 x i32> zeroinitializer, ptr %y, align 32
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 12
+  %0 = insertvalue %"int[]" undef, ptr %ptradd, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 4
+  %2 = insertvalue %"int[]" undef, ptr %ptradd1, 0
+  %3 = insertvalue %"int[]" %2, i64 3, 1
+  %4 = extractvalue %"int[]" %3, 0
+  %5 = extractvalue %"int[]" %1, 0
+  %6 = extractvalue %"int[]" %1, 1
+  %7 = mul i64 %6, 4
+  call void @llvm.memmove.p0.p0.i64(ptr align 4 %4, ptr align 4 %5, i64 %7, i1 false)
+  %8 = insertvalue %any undef, ptr %y, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.v6$int" to i64), 1
+  store %any %9, ptr %varargslots, align 16
+  %10 = insertvalue %any undef, ptr %z, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.v7$int" to i64), 1
+  %ptradd2 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %11, ptr %ptradd2, align 16
+  %12 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 5, ptr %varargslots, i64 2)
+  %ptradd3 = getelementptr inbounds i8, ptr %z, i64 20
+  %13 = insertvalue %"int[]" undef, ptr %ptradd3, 0
+  %14 = insertvalue %"int[]" %13, i64 2, 1
+  %ptradd4 = getelementptr inbounds i8, ptr %y, i64 16
+  %15 = insertvalue %"int[]" undef, ptr %ptradd4, 0
+  %16 = insertvalue %"int[]" %15, i64 2, 1
+  %17 = extractvalue %"int[]" %16, 0
+  %18 = extractvalue %"int[]" %14, 0
+  %19 = extractvalue %"int[]" %14, 1
+  %20 = mul i64 %19, 4
+  call void @llvm.memmove.p0.p0.i64(ptr align 4 %17, ptr align 4 %18, i64 %20, i1 false)
+  %21 = insertvalue %any undef, ptr %y, 0
+  %22 = insertvalue %any %21, i64 ptrtoint (ptr @"$ct.v6$int" to i64), 1
+  store %any %22, ptr %varargslots5, align 16
+  %23 = insertvalue %any undef, ptr %z, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.v7$int" to i64), 1
+  %ptradd6 = getelementptr inbounds i8, ptr %varargslots5, i64 16
+  store %any %24, ptr %ptradd6, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam7, ptr @.str.1, i64 5, ptr %varargslots5, i64 2)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal8, ptr align 4 @.__const, i32 4, i1 false)
+  %26 = insertvalue %"int[]" undef, ptr %literal8, 0
+  %27 = insertvalue %"int[]" %26, i64 1, 1
+  store %"int[]" %27, ptr %literal, align 8
+  %28 = insertvalue %"int[][]" undef, ptr %literal, 0
+  %29 = insertvalue %"int[][]" %28, i64 1, 1
+  store %"int[][]" %29, ptr %a, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal10, ptr align 4 @.__const.2, i32 4, i1 false)
+  %30 = insertvalue %"int[]" undef, ptr %literal10, 0
+  %31 = insertvalue %"int[]" %30, i64 1, 1
+  store %"int[]" %31, ptr %literal9, align 8
+  %32 = insertvalue %"int[][]" undef, ptr %literal9, 0
+  %33 = insertvalue %"int[][]" %32, i64 1, 1
+  store %"int[][]" %33, ptr %b, align 8
+  %34 = insertvalue %any undef, ptr %a, 0
+  %35 = insertvalue %any %34, i64 ptrtoint (ptr @"$ct.sa$sa$int" to i64), 1
+  store %any %35, ptr %varargslots11, align 16
+  %36 = call i64 @std.io.printfn(ptr %retparam12, ptr @.str.3, i64 2, ptr %varargslots11, i64 1)
+  %37 = load %"int[][]", ptr %b, align 8
+  %38 = extractvalue %"int[][]" %37, 0
+  %39 = insertvalue %"int[][]" undef, ptr %38, 0
+  %40 = insertvalue %"int[][]" %39, i64 1, 1
+  %41 = load %"int[][]", ptr %a, align 8
+  %42 = extractvalue %"int[][]" %41, 0
+  %43 = insertvalue %"int[][]" undef, ptr %42, 0
+  %44 = insertvalue %"int[][]" %43, i64 1, 1
+  %45 = extractvalue %"int[][]" %44, 0
+  %46 = extractvalue %"int[][]" %40, 0
+  %47 = extractvalue %"int[][]" %40, 1
+  %48 = mul i64 %47, 16
+  call void @llvm.memmove.p0.p0.i64(ptr align 8 %45, ptr align 8 %46, i64 %48, i1 false)
+  %49 = insertvalue %any undef, ptr %a, 0
+  %50 = insertvalue %any %49, i64 ptrtoint (ptr @"$ct.sa$sa$int" to i64), 1
+  store %any %50, ptr %varargslots13, align 16
+  %51 = call i64 @std.io.printfn(ptr %retparam14, ptr @.str.4, i64 2, ptr %varargslots13, i64 1)
+  %ptradd15 = getelementptr inbounds i8, ptr %y, i64 8
+  %52 = insertvalue %"int[]" undef, ptr %ptradd15, 0
+  %53 = insertvalue %"int[]" %52, i64 3, 1
+  %54 = load %"int[][]", ptr %a, align 8
+  %55 = extractvalue %"int[][]" %54, 0
+  store %"int[]" %53, ptr %55, align 8
+  %56 = insertvalue %any undef, ptr %a, 0
+  %57 = insertvalue %any %56, i64 ptrtoint (ptr @"$ct.sa$sa$int" to i64), 1
+  store %any %57, ptr %varargslots16, align 16
+  %58 = call i64 @std.io.printfn(ptr %retparam17, ptr @.str.5, i64 2, ptr %varargslots16, i64 1)
+  ret void
+}
diff --git a/test/test_suite7/slices/sub_array_init.c3 b/test/test_suite7/slices/sub_array_init.c3
new file mode 100644
index 000000000..72b6d5698
--- /dev/null
+++ b/test/test_suite7/slices/sub_array_init.c3
@@ -0,0 +1,7 @@
+fn void test2()
+{
+    int[2] a = { 1, 2 };
+
+    int[2] b = 30;   // #error: 'int[2]'
+    int[2] c = a;
+}
diff --git a/test/test_suite7/slices/subscript_check_1519.c3t b/test/test_suite7/slices/subscript_check_1519.c3t
new file mode 100644
index 000000000..e64bdeedc
--- /dev/null
+++ b/test/test_suite7/slices/subscript_check_1519.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module test;
+import std::collections::list;
+macro @test_list(a)
+{
+  var $Type = $typeof(a);
+  $if $defined(a[0]) &&& $Type.typeid == List(<$typeof(a[0])>).typeid:
+    return 1;
+  $else
+    return 0;
+  $endif
+}
+
+fn int main(String[] args)
+{
+  DString str = dstring::new("test");
+  return @test_list(str);
+}
+
+/* #expect: test.ll
+
+define i32 @test.main(ptr %0, i64 %1) #0 {
+entry:
+  %args = alloca %"char[][]", align 8
+  %str = alloca ptr, align 8
+  %a = alloca ptr, align 8
+  store ptr %0, ptr %args, align 8
+  %ptradd = getelementptr inbounds i8, ptr %args, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  %lo = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %2 = call ptr @std.core.dstring.new(ptr @.str, i64 4, i64 %lo, ptr %hi)
+  store ptr %2, ptr %str, align 8
+  %3 = load ptr, ptr %str, align 8
+  store ptr %3, ptr %a, align 8
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/slices/various_const_slicing.c3t b/test/test_suite7/slices/various_const_slicing.c3t
new file mode 100644
index 000000000..6828e0877
--- /dev/null
+++ b/test/test_suite7/slices/various_const_slicing.c3t
@@ -0,0 +1,497 @@
+// #target: macos-x64
+module test;
+import std;
+const int[4] FOO = { 1, 2, 3, 4 };
+int[] y2 = FOO[1..2];
+
+fn void test()
+{
+	int[][] a = { (int[]) { 1 } };
+	char[4] $a = x'aabbccdd';
+	var $b = $a[1..2];
+	char[2] y = $b;
+	assert($b == (char[]) { 187, 204 });
+	assert(y == (char[2]) { 187, 204 });
+
+}
+fn int main()
+{
+	int[?] $x = { 1, 2, 3, 4 };
+	var $y = $x[1..3];
+	int[] y = { 1, 2 };
+	io::printn(y.ptr);
+	io::printn(y.len);
+	io::printn(y);
+	io::printn($y);
+	int[2] $z = $y[1..2];
+	io::printn($z);
+	int[] $b = $y[:0];
+	int[] $c = $y[:0];
+	io::printn($c);
+	return 0;
+}
+
+/* #expect: test.ll
+
+@test.FOO = local_unnamed_addr constant [2 x i32] [i32 2, i32 3], align 16
+@.__const_slice = private unnamed_addr global [2 x i32] [i32 2, i32 3], align 4
+@test.y2 = local_unnamed_addr global %"int[]" { ptr @.__const_slice, i64 2 }, align 8
+@.__const = private unnamed_addr constant [1 x i32] [i32 1], align 4
+@.bytes = private unnamed_addr constant [3 x i8] c"\BB\CC\00", align 1
+@.__const.2 = private unnamed_addr constant [2 x i8] c"\BB\CC", align 1
+@.__const.3 = private unnamed_addr constant [2 x i32] [i32 1, i32 2], align 4
+@.__const.6 = private unnamed_addr constant [3 x i32] [i32 2, i32 3, i32 4], align 4
+@.__const.8 = private unnamed_addr constant [2 x i32] [i32 3, i32 4], align 4
+
+define void @test.test() #0 {
+entry:
+  %a = alloca %"int[][]", align 8
+  %literal = alloca [1 x %"int[]"], align 16
+  %literal1 = alloca [1 x i32], align 4
+  %y = alloca [2 x i8], align 1
+  %literal2 = alloca [2 x i8], align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal1, ptr align 4 @.__const, i32 4, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal1, 0
+  %1 = insertvalue %"int[]" %0, i64 1, 1
+  store %"int[]" %1, ptr %literal, align 8
+  %2 = insertvalue %"int[][]" undef, ptr %literal, 0
+  %3 = insertvalue %"int[][]" %2, i64 1, 1
+  store %"int[][]" %3, ptr %a, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %y, ptr align 1 @.bytes, i32 2, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %literal2, ptr align 1 @.__const.2, i32 2, i1 false)
+  %cmp = call i32 @memcmp(ptr %y, ptr %literal2, i64 2)
+  %eq = icmp eq i32 %cmp, 0
+  call void @llvm.assume(i1 %eq)
+  ret void
+}
+
+define i32 @main() #0 {
+entry:
+  %y = alloca %"int[]", align 8
+  %literal = alloca [2 x i32], align 4
+  %x = alloca ptr, align 8
+  %x1 = alloca ptr, align 8
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca ptr, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var4 = alloca i64, align 8
+  %error_var10 = alloca i64, align 8
+  %x17 = alloca i64, align 8
+  %x18 = alloca i64, align 8
+  %len19 = alloca i64, align 8
+  %error_var20 = alloca i64, align 8
+  %x21 = alloca i64, align 8
+  %varargslots23 = alloca [1 x %any], align 16
+  %retparam25 = alloca i64, align 8
+  %taddr26 = alloca %any, align 8
+  %indirectarg30 = alloca %"any[]", align 8
+  %error_var36 = alloca i64, align 8
+  %error_var42 = alloca i64, align 8
+  %x50 = alloca %"int[]", align 8
+  %x51 = alloca %"int[]", align 8
+  %len52 = alloca i64, align 8
+  %error_var53 = alloca i64, align 8
+  %x54 = alloca %"int[]", align 8
+  %varargslots56 = alloca [1 x %any], align 16
+  %retparam58 = alloca i64, align 8
+  %taddr59 = alloca %any, align 8
+  %indirectarg63 = alloca %"any[]", align 8
+  %error_var69 = alloca i64, align 8
+  %error_var75 = alloca i64, align 8
+  %literal83 = alloca [3 x i32], align 4
+  %len84 = alloca i64, align 8
+  %error_var85 = alloca i64, align 8
+  %varargslots87 = alloca [1 x %any], align 16
+  %taddr88 = alloca %"int[]", align 8
+  %retparam90 = alloca i64, align 8
+  %taddr91 = alloca %any, align 8
+  %indirectarg95 = alloca %"any[]", align 8
+  %error_var101 = alloca i64, align 8
+  %error_var107 = alloca i64, align 8
+  %literal115 = alloca [2 x i32], align 4
+  %x116 = alloca [2 x i32], align 4
+  %x117 = alloca [2 x i32], align 4
+  %len118 = alloca i64, align 8
+  %error_var119 = alloca i64, align 8
+  %x120 = alloca [2 x i32], align 4
+  %varargslots122 = alloca [1 x %any], align 16
+  %retparam124 = alloca i64, align 8
+  %taddr125 = alloca %any, align 8
+  %indirectarg129 = alloca %"any[]", align 8
+  %error_var135 = alloca i64, align 8
+  %error_var141 = alloca i64, align 8
+  %len149 = alloca i64, align 8
+  %error_var150 = alloca i64, align 8
+  %varargslots152 = alloca [1 x %any], align 16
+  %taddr153 = alloca %"int[]", align 8
+  %retparam155 = alloca i64, align 8
+  %taddr156 = alloca %any, align 8
+  %indirectarg160 = alloca %"any[]", align 8
+  %error_var166 = alloca i64, align 8
+  %error_var172 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 4 @.__const.3, i32 8, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %literal, 0
+  %1 = insertvalue %"int[]" %0, i64 2, 1
+  store %"int[]" %1, ptr %y, align 8
+  %2 = load ptr, ptr %y, align 8
+  store ptr %2, ptr %x, align 8
+  %3 = call ptr @std.io.stdout()
+  %4 = load ptr, ptr %x, align 8
+  store ptr %4, ptr %x1, align 8
+  %5 = load ptr, ptr %x1, align 8
+  store ptr %5, ptr %x2, align 8
+  %6 = insertvalue %any undef, ptr %3, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %8 = insertvalue %any undef, ptr %x2, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.p$int" to i64), 1
+  store %any %9, ptr %varargslots, align 16
+  %10 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %10, i64 1, 1
+  store %any %7, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %11 = call i64 @std.io.fprintf(ptr %retparam, i64 %lo, ptr %hi, ptr @.str, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %12, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %11, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %13 = load i64, ptr %retparam, align 8
+  store i64 %13, ptr %len, align 8
+  %14 = call i64 @std.io.File.write_byte(ptr %3, i8 zeroext 10)
+  %not_err5 = icmp eq i64 %14, 0
+  %15 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %15, label %after_check7, label %assign_optional6
+assign_optional6:                                 ; preds = %noerr_block
+  store i64 %14, ptr %error_var4, align 8
+  br label %guard_block8
+after_check7:                                     ; preds = %noerr_block
+  br label %noerr_block9
+guard_block8:                                     ; preds = %assign_optional6
+  br label %voiderr
+noerr_block9:                                     ; preds = %after_check7
+  %16 = call i64 @std.io.File.flush(ptr %3)
+  %not_err11 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err11, i1 true)
+  br i1 %17, label %after_check13, label %assign_optional12
+assign_optional12:                                ; preds = %noerr_block9
+  store i64 %16, ptr %error_var10, align 8
+  br label %guard_block14
+after_check13:                                    ; preds = %noerr_block9
+  br label %noerr_block15
+guard_block14:                                    ; preds = %assign_optional12
+  br label %voiderr
+noerr_block15:                                    ; preds = %after_check13
+  %18 = load i64, ptr %len, align 8
+  %add = add i64 %18, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block15, %guard_block14, %guard_block8, %guard_block
+  %ptradd16 = getelementptr inbounds i8, ptr %y, i64 8
+  %19 = load i64, ptr %ptradd16, align 8
+  store i64 %19, ptr %x17, align 8
+  %20 = call ptr @std.io.stdout()
+  %21 = load i64, ptr %x17, align 8
+  store i64 %21, ptr %x18, align 8
+  %22 = load i64, ptr %x18, align 8
+  store i64 %22, ptr %x21, align 8
+  %23 = insertvalue %any undef, ptr %20, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %25 = insertvalue %any undef, ptr %x21, 0
+  %26 = insertvalue %any %25, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
+  store %any %26, ptr %varargslots23, align 16
+  %27 = insertvalue %"any[]" undef, ptr %varargslots23, 0
+  %"$$temp24" = insertvalue %"any[]" %27, i64 1, 1
+  store %any %24, ptr %taddr26, align 8
+  %lo27 = load i64, ptr %taddr26, align 8
+  %ptradd28 = getelementptr inbounds i8, ptr %taddr26, i64 8
+  %hi29 = load ptr, ptr %ptradd28, align 8
+  store %"any[]" %"$$temp24", ptr %indirectarg30, align 8
+  %28 = call i64 @std.io.fprintf(ptr %retparam25, i64 %lo27, ptr %hi29, ptr @.str.4, i64 2, ptr byval(%"any[]") align 8 %indirectarg30)
+  %not_err31 = icmp eq i64 %28, 0
+  %29 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %29, label %after_check33, label %assign_optional32
+assign_optional32:                                ; preds = %voiderr
+  store i64 %28, ptr %error_var20, align 8
+  br label %guard_block34
+after_check33:                                    ; preds = %voiderr
+  br label %noerr_block35
+guard_block34:                                    ; preds = %assign_optional32
+  br label %voiderr49
+noerr_block35:                                    ; preds = %after_check33
+  %30 = load i64, ptr %retparam25, align 8
+  store i64 %30, ptr %len19, align 8
+  %31 = call i64 @std.io.File.write_byte(ptr %20, i8 zeroext 10)
+  %not_err37 = icmp eq i64 %31, 0
+  %32 = call i1 @llvm.expect.i1(i1 %not_err37, i1 true)
+  br i1 %32, label %after_check39, label %assign_optional38
+assign_optional38:                                ; preds = %noerr_block35
+  store i64 %31, ptr %error_var36, align 8
+  br label %guard_block40
+after_check39:                                    ; preds = %noerr_block35
+  br label %noerr_block41
+guard_block40:                                    ; preds = %assign_optional38
+  br label %voiderr49
+noerr_block41:                                    ; preds = %after_check39
+  %33 = call i64 @std.io.File.flush(ptr %20)
+  %not_err43 = icmp eq i64 %33, 0
+  %34 = call i1 @llvm.expect.i1(i1 %not_err43, i1 true)
+  br i1 %34, label %after_check45, label %assign_optional44
+assign_optional44:                                ; preds = %noerr_block41
+  store i64 %33, ptr %error_var42, align 8
+  br label %guard_block46
+after_check45:                                    ; preds = %noerr_block41
+  br label %noerr_block47
+guard_block46:                                    ; preds = %assign_optional44
+  br label %voiderr49
+noerr_block47:                                    ; preds = %after_check45
+  %35 = load i64, ptr %len19, align 8
+  %add48 = add i64 %35, 1
+  br label %voiderr49
+voiderr49:                                        ; preds = %noerr_block47, %guard_block46, %guard_block40, %guard_block34
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x50, ptr align 8 %y, i32 16, i1 false)
+  %36 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x51, ptr align 8 %x50, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %x54, ptr align 8 %x51, i32 16, i1 false)
+  %37 = insertvalue %any undef, ptr %36, 0
+  %38 = insertvalue %any %37, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %39 = insertvalue %any undef, ptr %x54, 0
+  %40 = insertvalue %any %39, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %40, ptr %varargslots56, align 16
+  %41 = insertvalue %"any[]" undef, ptr %varargslots56, 0
+  %"$$temp57" = insertvalue %"any[]" %41, i64 1, 1
+  store %any %38, ptr %taddr59, align 8
+  %lo60 = load i64, ptr %taddr59, align 8
+  %ptradd61 = getelementptr inbounds i8, ptr %taddr59, i64 8
+  %hi62 = load ptr, ptr %ptradd61, align 8
+  store %"any[]" %"$$temp57", ptr %indirectarg63, align 8
+  %42 = call i64 @std.io.fprintf(ptr %retparam58, i64 %lo60, ptr %hi62, ptr @.str.5, i64 2, ptr byval(%"any[]") align 8 %indirectarg63)
+  %not_err64 = icmp eq i64 %42, 0
+  %43 = call i1 @llvm.expect.i1(i1 %not_err64, i1 true)
+  br i1 %43, label %after_check66, label %assign_optional65
+assign_optional65:                                ; preds = %voiderr49
+  store i64 %42, ptr %error_var53, align 8
+  br label %guard_block67
+after_check66:                                    ; preds = %voiderr49
+  br label %noerr_block68
+guard_block67:                                    ; preds = %assign_optional65
+  br label %voiderr82
+noerr_block68:                                    ; preds = %after_check66
+  %44 = load i64, ptr %retparam58, align 8
+  store i64 %44, ptr %len52, align 8
+  %45 = call i64 @std.io.File.write_byte(ptr %36, i8 zeroext 10)
+  %not_err70 = icmp eq i64 %45, 0
+  %46 = call i1 @llvm.expect.i1(i1 %not_err70, i1 true)
+  br i1 %46, label %after_check72, label %assign_optional71
+assign_optional71:                                ; preds = %noerr_block68
+  store i64 %45, ptr %error_var69, align 8
+  br label %guard_block73
+after_check72:                                    ; preds = %noerr_block68
+  br label %noerr_block74
+guard_block73:                                    ; preds = %assign_optional71
+  br label %voiderr82
+noerr_block74:                                    ; preds = %after_check72
+  %47 = call i64 @std.io.File.flush(ptr %36)
+  %not_err76 = icmp eq i64 %47, 0
+  %48 = call i1 @llvm.expect.i1(i1 %not_err76, i1 true)
+  br i1 %48, label %after_check78, label %assign_optional77
+assign_optional77:                                ; preds = %noerr_block74
+  store i64 %47, ptr %error_var75, align 8
+  br label %guard_block79
+after_check78:                                    ; preds = %noerr_block74
+  br label %noerr_block80
+guard_block79:                                    ; preds = %assign_optional77
+  br label %voiderr82
+noerr_block80:                                    ; preds = %after_check78
+  %49 = load i64, ptr %len52, align 8
+  %add81 = add i64 %49, 1
+  br label %voiderr82
+voiderr82:                                        ; preds = %noerr_block80, %guard_block79, %guard_block73, %guard_block67
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal83, ptr align 4 @.__const.6, i32 12, i1 false)
+  %50 = insertvalue %"int[]" undef, ptr %literal83, 0
+  %51 = insertvalue %"int[]" %50, i64 3, 1
+  %52 = call ptr @std.io.stdout()
+  %53 = insertvalue %any undef, ptr %52, 0
+  %54 = insertvalue %any %53, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %"int[]" %51, ptr %taddr88, align 8
+  %55 = insertvalue %any undef, ptr %taddr88, 0
+  %56 = insertvalue %any %55, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %56, ptr %varargslots87, align 16
+  %57 = insertvalue %"any[]" undef, ptr %varargslots87, 0
+  %"$$temp89" = insertvalue %"any[]" %57, i64 1, 1
+  store %any %54, ptr %taddr91, align 8
+  %lo92 = load i64, ptr %taddr91, align 8
+  %ptradd93 = getelementptr inbounds i8, ptr %taddr91, i64 8
+  %hi94 = load ptr, ptr %ptradd93, align 8
+  store %"any[]" %"$$temp89", ptr %indirectarg95, align 8
+  %58 = call i64 @std.io.fprintf(ptr %retparam90, i64 %lo92, ptr %hi94, ptr @.str.7, i64 2, ptr byval(%"any[]") align 8 %indirectarg95)
+  %not_err96 = icmp eq i64 %58, 0
+  %59 = call i1 @llvm.expect.i1(i1 %not_err96, i1 true)
+  br i1 %59, label %after_check98, label %assign_optional97
+assign_optional97:                                ; preds = %voiderr82
+  store i64 %58, ptr %error_var85, align 8
+  br label %guard_block99
+after_check98:                                    ; preds = %voiderr82
+  br label %noerr_block100
+guard_block99:                                    ; preds = %assign_optional97
+  br label %voiderr114
+noerr_block100:                                   ; preds = %after_check98
+  %60 = load i64, ptr %retparam90, align 8
+  store i64 %60, ptr %len84, align 8
+  %61 = call i64 @std.io.File.write_byte(ptr %52, i8 zeroext 10)
+  %not_err102 = icmp eq i64 %61, 0
+  %62 = call i1 @llvm.expect.i1(i1 %not_err102, i1 true)
+  br i1 %62, label %after_check104, label %assign_optional103
+assign_optional103:                               ; preds = %noerr_block100
+  store i64 %61, ptr %error_var101, align 8
+  br label %guard_block105
+after_check104:                                   ; preds = %noerr_block100
+  br label %noerr_block106
+guard_block105:                                   ; preds = %assign_optional103
+  br label %voiderr114
+noerr_block106:                                   ; preds = %after_check104
+  %63 = call i64 @std.io.File.flush(ptr %52)
+  %not_err108 = icmp eq i64 %63, 0
+  %64 = call i1 @llvm.expect.i1(i1 %not_err108, i1 true)
+  br i1 %64, label %after_check110, label %assign_optional109
+assign_optional109:                               ; preds = %noerr_block106
+  store i64 %63, ptr %error_var107, align 8
+  br label %guard_block111
+after_check110:                                   ; preds = %noerr_block106
+  br label %noerr_block112
+guard_block111:                                   ; preds = %assign_optional109
+  br label %voiderr114
+noerr_block112:                                   ; preds = %after_check110
+  %65 = load i64, ptr %len84, align 8
+  %add113 = add i64 %65, 1
+  br label %voiderr114
+voiderr114:                                       ; preds = %noerr_block112, %guard_block111, %guard_block105, %guard_block99
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal115, ptr align 4 @.__const.8, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x116, ptr align 4 %literal115, i32 8, i1 false)
+  %66 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x117, ptr align 4 %x116, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x120, ptr align 4 %x117, i32 8, i1 false)
+  %67 = insertvalue %any undef, ptr %66, 0
+  %68 = insertvalue %any %67, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %69 = insertvalue %any undef, ptr %x120, 0
+  %70 = insertvalue %any %69, i64 ptrtoint (ptr @"$ct.a2$int" to i64), 1
+  store %any %70, ptr %varargslots122, align 16
+  %71 = insertvalue %"any[]" undef, ptr %varargslots122, 0
+  %"$$temp123" = insertvalue %"any[]" %71, i64 1, 1
+  store %any %68, ptr %taddr125, align 8
+  %lo126 = load i64, ptr %taddr125, align 8
+  %ptradd127 = getelementptr inbounds i8, ptr %taddr125, i64 8
+  %hi128 = load ptr, ptr %ptradd127, align 8
+  store %"any[]" %"$$temp123", ptr %indirectarg129, align 8
+  %72 = call i64 @std.io.fprintf(ptr %retparam124, i64 %lo126, ptr %hi128, ptr @.str.9, i64 2, ptr byval(%"any[]") align 8 %indirectarg129)
+  %not_err130 = icmp eq i64 %72, 0
+  %73 = call i1 @llvm.expect.i1(i1 %not_err130, i1 true)
+  br i1 %73, label %after_check132, label %assign_optional131
+assign_optional131:                               ; preds = %voiderr114
+  store i64 %72, ptr %error_var119, align 8
+  br label %guard_block133
+after_check132:                                   ; preds = %voiderr114
+  br label %noerr_block134
+guard_block133:                                   ; preds = %assign_optional131
+  br label %voiderr148
+noerr_block134:                                   ; preds = %after_check132
+  %74 = load i64, ptr %retparam124, align 8
+  store i64 %74, ptr %len118, align 8
+  %75 = call i64 @std.io.File.write_byte(ptr %66, i8 zeroext 10)
+  %not_err136 = icmp eq i64 %75, 0
+  %76 = call i1 @llvm.expect.i1(i1 %not_err136, i1 true)
+  br i1 %76, label %after_check138, label %assign_optional137
+assign_optional137:                               ; preds = %noerr_block134
+  store i64 %75, ptr %error_var135, align 8
+  br label %guard_block139
+after_check138:                                   ; preds = %noerr_block134
+  br label %noerr_block140
+guard_block139:                                   ; preds = %assign_optional137
+  br label %voiderr148
+noerr_block140:                                   ; preds = %after_check138
+  %77 = call i64 @std.io.File.flush(ptr %66)
+  %not_err142 = icmp eq i64 %77, 0
+  %78 = call i1 @llvm.expect.i1(i1 %not_err142, i1 true)
+  br i1 %78, label %after_check144, label %assign_optional143
+assign_optional143:                               ; preds = %noerr_block140
+  store i64 %77, ptr %error_var141, align 8
+  br label %guard_block145
+after_check144:                                   ; preds = %noerr_block140
+  br label %noerr_block146
+guard_block145:                                   ; preds = %assign_optional143
+  br label %voiderr148
+noerr_block146:                                   ; preds = %after_check144
+  %79 = load i64, ptr %len118, align 8
+  %add147 = add i64 %79, 1
+  br label %voiderr148
+voiderr148:                                       ; preds = %noerr_block146, %guard_block145, %guard_block139, %guard_block133
+  %80 = call ptr @std.io.stdout()
+  %81 = insertvalue %any undef, ptr %80, 0
+  %82 = insertvalue %any %81, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %"int[]" zeroinitializer, ptr %taddr153, align 8
+  %83 = insertvalue %any undef, ptr %taddr153, 0
+  %84 = insertvalue %any %83, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %84, ptr %varargslots152, align 16
+  %85 = insertvalue %"any[]" undef, ptr %varargslots152, 0
+  %"$$temp154" = insertvalue %"any[]" %85, i64 1, 1
+  store %any %82, ptr %taddr156, align 8
+  %lo157 = load i64, ptr %taddr156, align 8
+  %ptradd158 = getelementptr inbounds i8, ptr %taddr156, i64 8
+  %hi159 = load ptr, ptr %ptradd158, align 8
+  store %"any[]" %"$$temp154", ptr %indirectarg160, align 8
+  %86 = call i64 @std.io.fprintf(ptr %retparam155, i64 %lo157, ptr %hi159, ptr @.str.10, i64 2, ptr byval(%"any[]") align 8 %indirectarg160)
+  %not_err161 = icmp eq i64 %86, 0
+  %87 = call i1 @llvm.expect.i1(i1 %not_err161, i1 true)
+  br i1 %87, label %after_check163, label %assign_optional162
+assign_optional162:                               ; preds = %voiderr148
+  store i64 %86, ptr %error_var150, align 8
+  br label %guard_block164
+after_check163:                                   ; preds = %voiderr148
+  br label %noerr_block165
+guard_block164:                                   ; preds = %assign_optional162
+  br label %voiderr179
+noerr_block165:                                   ; preds = %after_check163
+  %88 = load i64, ptr %retparam155, align 8
+  store i64 %88, ptr %len149, align 8
+  %89 = call i64 @std.io.File.write_byte(ptr %80, i8 zeroext 10)
+  %not_err167 = icmp eq i64 %89, 0
+  %90 = call i1 @llvm.expect.i1(i1 %not_err167, i1 true)
+  br i1 %90, label %after_check169, label %assign_optional168
+assign_optional168:                               ; preds = %noerr_block165
+  store i64 %89, ptr %error_var166, align 8
+  br label %guard_block170
+after_check169:                                   ; preds = %noerr_block165
+  br label %noerr_block171
+guard_block170:                                   ; preds = %assign_optional168
+  br label %voiderr179
+noerr_block171:                                   ; preds = %after_check169
+  %91 = call i64 @std.io.File.flush(ptr %80)
+  %not_err173 = icmp eq i64 %91, 0
+  %92 = call i1 @llvm.expect.i1(i1 %not_err173, i1 true)
+  br i1 %92, label %after_check175, label %assign_optional174
+assign_optional174:                               ; preds = %noerr_block171
+  store i64 %91, ptr %error_var172, align 8
+  br label %guard_block176
+after_check175:                                   ; preds = %noerr_block171
+  br label %noerr_block177
+guard_block176:                                   ; preds = %assign_optional174
+  br label %voiderr179
+noerr_block177:                                   ; preds = %after_check175
+  %93 = load i64, ptr %len149, align 8
+  %add178 = add i64 %93, 1
+  br label %voiderr179
+voiderr179:                                       ; preds = %noerr_block177, %guard_block176, %guard_block170, %guard_block164
+  ret i32 0
+}
+
diff --git a/test/test_suite7/statements/binary_fail.c3 b/test/test_suite7/statements/binary_fail.c3
new file mode 100644
index 000000000..4e124de8d
--- /dev/null
+++ b/test/test_suite7/statements/binary_fail.c3
@@ -0,0 +1,8 @@
+fn void test()
+{
+    float a;
+    float b;
+    int *c;
+    int *d;
+    if (a + c) return; // #error: A value of type 'float' cannot be added to 'int*', an integer was expected here
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/call_missing_paren.c3 b/test/test_suite7/statements/call_missing_paren.c3
new file mode 100644
index 000000000..3bcb40748
--- /dev/null
+++ b/test/test_suite7/statements/call_missing_paren.c3
@@ -0,0 +1,7 @@
+fn void foo(int a) {}
+
+fn int main()
+{
+    foo(10, foo();  // #error: Did you forget a ')' before this
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/comparison_widening.c3t b/test/test_suite7/statements/comparison_widening.c3t
new file mode 100644
index 000000000..0fb2b4fa8
--- /dev/null
+++ b/test/test_suite7/statements/comparison_widening.c3t
@@ -0,0 +1,43 @@
+// #target: macos-x64
+
+fn void test1()
+{
+    char a = 1;
+    int b = 2;
+    char c = b > a ? 1u8 : 0u8;
+    int d = b ?: 1;
+}
+
+/* #expect: comparison_widening.ll
+
+define void @comparison_widening.test1() #0 {
+entry:
+  %a = alloca i8, align 1
+  %b = alloca i32, align 4
+  %c = alloca i8, align 1
+  %d = alloca i32, align 4
+  store i8 1, ptr %a, align 1
+  store i32 2, ptr %b, align 4
+  %0 = load i32, ptr %b, align 4
+  %1 = load i8, ptr %a, align 1
+  %zext = zext i8 %1 to i32
+  %gt = icmp sgt i32 %0, %zext
+  %check = icmp sge i32 %zext, 0
+  %siui-gt = and i1 %check, %gt
+  %ternary = select i1 %siui-gt, i8 1, i8 0
+  store i8 %ternary, ptr %c, align 1
+  %2 = load i32, ptr %b, align 4
+  %i2b = icmp ne i32 %2, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi i32 [ %2, %cond.lhs ], [ 1, %cond.rhs ]
+  store i32 %val, ptr %d, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/conditional_return.c3 b/test/test_suite7/statements/conditional_return.c3
new file mode 100644
index 000000000..1337d5c26
--- /dev/null
+++ b/test/test_suite7/statements/conditional_return.c3
@@ -0,0 +1,12 @@
+fn int testReturnWithConditional()
+{
+    int i = 0;
+    if (i > 0)
+    {
+        return 1;
+    }
+    else
+    {
+        return 2;
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/const_statements.c3t b/test/test_suite7/statements/const_statements.c3t
new file mode 100644
index 000000000..f4288e2df
--- /dev/null
+++ b/test/test_suite7/statements/const_statements.c3t
@@ -0,0 +1,15 @@
+// #target: macos-x64
+
+module test;
+fn void main()
+{
+	var $x = { { 1, 2 } };
+	$x;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/custom_foreach_with_ref.c3t b/test/test_suite7/statements/custom_foreach_with_ref.c3t
new file mode 100644
index 000000000..bd2093a87
--- /dev/null
+++ b/test/test_suite7/statements/custom_foreach_with_ref.c3t
@@ -0,0 +1,406 @@
+// #target: macos-x64
+module foo;
+
+struct Foo
+{
+    int[3] a;
+}
+
+extern fn void printf(char*, ...);
+
+macro int* Foo.@operator_element_at_ref(Foo* &f, int a) @operator(&[])
+{
+    return &f.a[a];
+}
+
+macro int Foo.@operator_len(Foo* &f) @operator(len)
+{
+    return 3;
+}
+
+macro int Foo.@operator_element_at(Foo* &f, int a) @operator([])
+{
+    return f.a[a];
+}
+
+fn int[5] getFields()
+{
+    printf("getFields\n");
+    return (int[5]) { 3, 5, 2, 10, 111};
+}
+fn Foo *call(Foo* f)
+{
+    printf("Call made\n");
+    return f;
+}
+fn void main()
+{
+    Foo x = { { 1, 5, 7} };
+    printf("%d %d %d\n", x[0], x[1], x[2]);
+    foreach (i, int y : *call(&x))
+    {
+        printf("Hello %d: %d\n", i, y);
+    }
+    foreach (i, int* &y : x)
+    {
+        *y += 1;
+        printf("Hello %d: %d\n", i, *y);
+    }
+    foreach (i, int y : x)
+    {
+        printf("After one %d: %d\n", i, y);
+    }
+
+    foreach (i, int y : &x)
+    {
+        printf("By pointer %d: %d\n", i, y);
+    }
+
+    foreach (i, int y : x)
+    {
+        printf("Adding %d: %d\n", i, y);
+        i++;
+    }
+
+    foreach(i, y : (int[5]) { 1, 2, 10, 111, 123 } )
+    {
+        printf("Adding %d: %d\n", i, y);
+        i++;
+    }
+    foreach(i, y : getFields() )
+    {
+        printf("Pull value %d: %d\n", i, y);
+    }
+    foreach(i, y : &&getFields())
+    {
+        printf("Pull value tempptr %d: %d\n", i, y);
+    }
+    printf("%d %d\n", x[0], x[1]);
+    int* y = &x[1];
+    *y += 1;
+    printf("%d %d\n", x[0], x[1]);
+}
+
+/* #expect: foo.ll
+
+%Foo = type { [3 x i32] }
+
+@"$ct.foo.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 12, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.str = private unnamed_addr constant [11 x i8] c"getFields\0A\00", align 1
+@.__const = private unnamed_addr constant [5 x i32] [i32 3, i32 5, i32 2, i32 10, i32 111], align 16
+@.str.1 = private unnamed_addr constant [11 x i8] c"Call made\0A\00", align 1
+@.__const.2 = private unnamed_addr constant %Foo { [3 x i32] [i32 1, i32 5, i32 7] }, align 4
+@.str.3 = private unnamed_addr constant [10 x i8] c"%d %d %d\0A\00", align 1
+@.str.4 = private unnamed_addr constant [14 x i8] c"Hello %d: %d\0A\00", align 1
+@.str.5 = private unnamed_addr constant [14 x i8] c"Hello %d: %d\0A\00", align 1
+@.str.6 = private unnamed_addr constant [18 x i8] c"After one %d: %d\0A\00", align 1
+@.str.7 = private unnamed_addr constant [19 x i8] c"By pointer %d: %d\0A\00", align 1
+@.str.8 = private unnamed_addr constant [15 x i8] c"Adding %d: %d\0A\00", align 1
+@.__const.9 = private unnamed_addr constant [5 x i32] [i32 1, i32 2, i32 10, i32 111, i32 123], align 16
+@.str.10 = private unnamed_addr constant [15 x i8] c"Adding %d: %d\0A\00", align 1
+@.str.11 = private unnamed_addr constant [19 x i8] c"Pull value %d: %d\0A\00", align 1
+@.str.12 = private unnamed_addr constant [27 x i8] c"Pull value tempptr %d: %d\0A\00", align 1
+@.str.13 = private unnamed_addr constant [7 x i8] c"%d %d\0A\00", align 1
+@.str.14 = private unnamed_addr constant [7 x i8] c"%d %d\0A\00", align 1
+
+; Function Attrs:
+declare void @printf(ptr, ...) #0
+
+; Function Attrs:
+define void @foo.getFields(ptr noalias sret([5 x i32]) align 4 %0) #0 {
+entry:
+  %literal = alloca [5 x i32], align 16
+  call void (ptr, ...) @printf(ptr @.str)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %literal, ptr align 16 @.__const, i32 20, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %0, ptr align 4 %literal, i32 20, i1 false)
+  ret void
+}
+
+; Function Attrs:
+define ptr @foo.call(ptr %0) #0 {
+entry:
+  call void (ptr, ...) @printf(ptr @.str.1)
+  ret ptr %0
+}
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %x = alloca %Foo, align 4
+  %.anon = alloca i32, align 4
+  %i = alloca i32, align 4
+  %y = alloca i32, align 4
+  %a = alloca i32, align 4
+  %.anon2 = alloca i32, align 4
+  %i6 = alloca i32, align 4
+  %y7 = alloca ptr, align 8
+  %a8 = alloca i32, align 4
+  %.anon13 = alloca i32, align 4
+  %i17 = alloca i32, align 4
+  %y18 = alloca i32, align 4
+  %a19 = alloca i32, align 4
+  %.anon24 = alloca i32, align 4
+  %i28 = alloca i32, align 4
+  %y29 = alloca i32, align 4
+  %a30 = alloca i32, align 4
+  %.anon35 = alloca i32, align 4
+  %i39 = alloca i32, align 4
+  %y40 = alloca i32, align 4
+  %a41 = alloca i32, align 4
+  %.anon47 = alloca [5 x i32], align 16
+  %.anon48 = alloca i64, align 8
+  %i51 = alloca i64, align 8
+  %y52 = alloca i32, align 4
+  %.anon56 = alloca [5 x i32], align 16
+  %.anon57 = alloca i64, align 8
+  %i61 = alloca i64, align 8
+  %y62 = alloca i32, align 4
+  %sretparam = alloca [5 x i32], align 4
+  %.anon66 = alloca i64, align 8
+  %i70 = alloca i64, align 8
+  %y71 = alloca i32, align 4
+  %y76 = alloca ptr, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const.2, i32 12, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  %0 = load i32, ptr %x, align 4
+  %1 = load i32, ptr %ptradd, align 4
+  %2 = load i32, ptr %ptradd1, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %0, i32 %1, i32 %2)
+  %3 = call ptr @foo.call(ptr %x)
+  store i32 0, ptr %.anon, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %4 = load i32, ptr %.anon, align 4
+  %lt = icmp slt i32 %4, 3
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %5 = load i32, ptr %.anon, align 4
+  store i32 %5, ptr %i, align 4
+  %6 = load i32, ptr %.anon, align 4
+  store i32 %6, ptr %a, align 4
+  %7 = load i32, ptr %a, align 4
+  %sext = sext i32 %7 to i64
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %3, i64 %sext
+  %8 = load i32, ptr %ptroffset, align 4
+  store i32 %8, ptr %y, align 4
+  %9 = load i32, ptr %i, align 4
+  %10 = load i32, ptr %y, align 4
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %9, i32 %10)
+  %11 = load i32, ptr %.anon, align 4
+  %addnsw = add nsw i32 %11, 1
+  store i32 %addnsw, ptr %.anon, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  store i32 0, ptr %.anon2, align 4
+  br label %loop.cond3
+
+loop.cond3:                                       ; preds = %loop.body5, %loop.exit
+  %12 = load i32, ptr %.anon2, align 4
+  %lt4 = icmp slt i32 %12, 3
+  br i1 %lt4, label %loop.body5, label %loop.exit12
+
+loop.body5:                                       ; preds = %loop.cond3
+  %13 = load i32, ptr %.anon2, align 4
+  store i32 %13, ptr %i6, align 4
+  %14 = load i32, ptr %.anon2, align 4
+  store i32 %14, ptr %a8, align 4
+  %15 = load i32, ptr %a8, align 4
+  %sext9 = sext i32 %15 to i64
+  %ptroffset10 = getelementptr inbounds [4 x i8], ptr %x, i64 %sext9
+  store ptr %ptroffset10, ptr %y7, align 8
+  %16 = load ptr, ptr %y7, align 8
+  %17 = load i32, ptr %16, align 4
+  %add = add i32 %17, 1
+  store i32 %add, ptr %16, align 4
+  %18 = load ptr, ptr %y7, align 8
+  %19 = load i32, ptr %i6, align 4
+  %20 = load i32, ptr %18, align 4
+  call void (ptr, ...) @printf(ptr @.str.5, i32 %19, i32 %20)
+  %21 = load i32, ptr %.anon2, align 4
+  %addnsw11 = add nsw i32 %21, 1
+  store i32 %addnsw11, ptr %.anon2, align 4
+  br label %loop.cond3
+
+loop.exit12:                                      ; preds = %loop.cond3
+  store i32 0, ptr %.anon13, align 4
+  br label %loop.cond14
+
+loop.cond14:                                      ; preds = %loop.body16, %loop.exit12
+  %22 = load i32, ptr %.anon13, align 4
+  %lt15 = icmp slt i32 %22, 3
+  br i1 %lt15, label %loop.body16, label %loop.exit23
+
+loop.body16:                                      ; preds = %loop.cond14
+  %23 = load i32, ptr %.anon13, align 4
+  store i32 %23, ptr %i17, align 4
+  %24 = load i32, ptr %.anon13, align 4
+  store i32 %24, ptr %a19, align 4
+  %25 = load i32, ptr %a19, align 4
+  %sext20 = sext i32 %25 to i64
+  %ptroffset21 = getelementptr inbounds [4 x i8], ptr %x, i64 %sext20
+  %26 = load i32, ptr %ptroffset21, align 4
+  store i32 %26, ptr %y18, align 4
+  %27 = load i32, ptr %i17, align 4
+  %28 = load i32, ptr %y18, align 4
+  call void (ptr, ...) @printf(ptr @.str.6, i32 %27, i32 %28)
+  %29 = load i32, ptr %.anon13, align 4
+  %addnsw22 = add nsw i32 %29, 1
+  store i32 %addnsw22, ptr %.anon13, align 4
+  br label %loop.cond14
+
+loop.exit23:                                      ; preds = %loop.cond14
+  store i32 0, ptr %.anon24, align 4
+  br label %loop.cond25
+
+loop.cond25:                                      ; preds = %loop.body27, %loop.exit23
+  %30 = load i32, ptr %.anon24, align 4
+  %lt26 = icmp slt i32 %30, 3
+  br i1 %lt26, label %loop.body27, label %loop.exit34
+
+loop.body27:                                      ; preds = %loop.cond25
+  %31 = load i32, ptr %.anon24, align 4
+  store i32 %31, ptr %i28, align 4
+  %32 = load i32, ptr %.anon24, align 4
+  store i32 %32, ptr %a30, align 4
+  %33 = load i32, ptr %a30, align 4
+  %sext31 = sext i32 %33 to i64
+  %ptroffset32 = getelementptr inbounds [4 x i8], ptr %x, i64 %sext31
+  %34 = load i32, ptr %ptroffset32, align 4
+  store i32 %34, ptr %y29, align 4
+  %35 = load i32, ptr %i28, align 4
+  %36 = load i32, ptr %y29, align 4
+  call void (ptr, ...) @printf(ptr @.str.7, i32 %35, i32 %36)
+  %37 = load i32, ptr %.anon24, align 4
+  %addnsw33 = add nsw i32 %37, 1
+  store i32 %addnsw33, ptr %.anon24, align 4
+  br label %loop.cond25
+
+loop.exit34:                                      ; preds = %loop.cond25
+  store i32 0, ptr %.anon35, align 4
+  br label %loop.cond36
+
+loop.cond36:                                      ; preds = %loop.body38, %loop.exit34
+  %38 = load i32, ptr %.anon35, align 4
+  %lt37 = icmp slt i32 %38, 3
+  br i1 %lt37, label %loop.body38, label %loop.exit46
+
+loop.body38:                                      ; preds = %loop.cond36
+  %39 = load i32, ptr %.anon35, align 4
+  store i32 %39, ptr %i39, align 4
+  %40 = load i32, ptr %.anon35, align 4
+  store i32 %40, ptr %a41, align 4
+  %41 = load i32, ptr %a41, align 4
+  %sext42 = sext i32 %41 to i64
+  %ptroffset43 = getelementptr inbounds [4 x i8], ptr %x, i64 %sext42
+  %42 = load i32, ptr %ptroffset43, align 4
+  store i32 %42, ptr %y40, align 4
+  %43 = load i32, ptr %i39, align 4
+  %44 = load i32, ptr %y40, align 4
+  call void (ptr, ...) @printf(ptr @.str.8, i32 %43, i32 %44)
+  %45 = load i32, ptr %i39, align 4
+  %add44 = add i32 %45, 1
+  store i32 %add44, ptr %i39, align 4
+  %46 = load i32, ptr %.anon35, align 4
+  %addnsw45 = add nsw i32 %46, 1
+  store i32 %addnsw45, ptr %.anon35, align 4
+  br label %loop.cond36
+
+loop.exit46:                                      ; preds = %loop.cond36
+  call void @llvm.memcpy.p0.p0.i32(ptr align 16 %.anon47, ptr align 16 @.__const.9, i32 20, i1 false)
+  store i64 0, ptr %.anon48, align 8
+  br label %loop.cond49
+
+loop.cond49:                                      ; preds = %loop.body50, %loop.exit46
+  %47 = load i64, ptr %.anon48, align 8
+  %gt = icmp ugt i64 5, %47
+  br i1 %gt, label %loop.body50, label %loop.exit55
+
+loop.body50:                                      ; preds = %loop.cond49
+  %48 = load i64, ptr %.anon48, align 8
+  store i64 %48, ptr %i51, align 8
+  %49 = load i64, ptr %.anon48, align 8
+  %ptroffset53 = getelementptr inbounds [4 x i8], ptr %.anon47, i64 %49
+  %50 = load i32, ptr %ptroffset53, align 4
+  store i32 %50, ptr %y52, align 4
+  %51 = load i64, ptr %i51, align 8
+  %52 = load i32, ptr %y52, align 4
+  call void (ptr, ...) @printf(ptr @.str.10, i64 %51, i32 %52)
+  %53 = load i64, ptr %i51, align 8
+  %add54 = add i64 %53, 1
+  store i64 %add54, ptr %i51, align 8
+  %54 = load i64, ptr %.anon48, align 8
+  %addnuw = add nuw i64 %54, 1
+  store i64 %addnuw, ptr %.anon48, align 8
+  br label %loop.cond49
+
+loop.exit55:                                      ; preds = %loop.cond49
+  call void @foo.getFields(ptr sret([5 x i32]) align 4 %.anon56)
+  store i64 0, ptr %.anon57, align 8
+  br label %loop.cond58
+
+loop.cond58:                                      ; preds = %loop.body60, %loop.exit55
+  %55 = load i64, ptr %.anon57, align 8
+  %gt59 = icmp ugt i64 5, %55
+  br i1 %gt59, label %loop.body60, label %loop.exit65
+
+loop.body60:                                      ; preds = %loop.cond58
+  %56 = load i64, ptr %.anon57, align 8
+  store i64 %56, ptr %i61, align 8
+  %57 = load i64, ptr %.anon57, align 8
+  %ptroffset63 = getelementptr inbounds [4 x i8], ptr %.anon56, i64 %57
+  %58 = load i32, ptr %ptroffset63, align 4
+  store i32 %58, ptr %y62, align 4
+  %59 = load i64, ptr %i61, align 8
+  %60 = load i32, ptr %y62, align 4
+  call void (ptr, ...) @printf(ptr @.str.11, i64 %59, i32 %60)
+  %61 = load i64, ptr %.anon57, align 8
+  %addnuw64 = add nuw i64 %61, 1
+  store i64 %addnuw64, ptr %.anon57, align 8
+  br label %loop.cond58
+
+loop.exit65:                                      ; preds = %loop.cond58
+  call void @foo.getFields(ptr sret([5 x i32]) align 4 %sretparam)
+  store i64 0, ptr %.anon66, align 8
+  br label %loop.cond67
+
+loop.cond67:                                      ; preds = %loop.body69, %loop.exit65
+  %62 = load i64, ptr %.anon66, align 8
+  %gt68 = icmp ugt i64 5, %62
+  br i1 %gt68, label %loop.body69, label %loop.exit74
+
+loop.body69:                                      ; preds = %loop.cond67
+  %63 = load i64, ptr %.anon66, align 8
+  store i64 %63, ptr %i70, align 8
+  %64 = load i64, ptr %.anon66, align 8
+  %ptroffset72 = getelementptr inbounds [4 x i8], ptr %sretparam, i64 %64
+  %65 = load i32, ptr %ptroffset72, align 4
+  store i32 %65, ptr %y71, align 4
+  %66 = load i64, ptr %i70, align 8
+  %67 = load i32, ptr %y71, align 4
+  call void (ptr, ...) @printf(ptr @.str.12, i64 %66, i32 %67)
+  %68 = load i64, ptr %.anon66, align 8
+  %addnuw73 = add nuw i64 %68, 1
+  store i64 %addnuw73, ptr %.anon66, align 8
+  br label %loop.cond67
+
+loop.exit74:                                      ; preds = %loop.cond67
+  %ptradd75 = getelementptr inbounds i8, ptr %x, i64 4
+  %69 = load i32, ptr %x, align 4
+  %70 = load i32, ptr %ptradd75, align 4
+  call void (ptr, ...) @printf(ptr @.str.13, i32 %69, i32 %70)
+  %ptradd77 = getelementptr inbounds i8, ptr %x, i64 4
+  store ptr %ptradd77, ptr %y76, align 8
+  %71 = load ptr, ptr %y76, align 8
+  %72 = load i32, ptr %71, align 4
+  %add78 = add i32 %72, 1
+  store i32 %add78, ptr %71, align 4
+  %ptradd79 = getelementptr inbounds i8, ptr %x, i64 4
+  %73 = load i32, ptr %x, align 4
+  %74 = load i32, ptr %ptradd79, align 4
+  call void (ptr, ...) @printf(ptr @.str.14, i32 %73, i32 %74)
+  ret void
+}
diff --git a/test/test_suite7/statements/dead_statements.c3t b/test/test_suite7/statements/dead_statements.c3t
new file mode 100644
index 000000000..341c5cb4f
--- /dev/null
+++ b/test/test_suite7/statements/dead_statements.c3t
@@ -0,0 +1,44 @@
+// #target: macos-x64
+module test;
+import std::io;
+import std::io::path;
+import std::collections::list;
+
+fn void! load_corpus2(String code, String path) @local
+{
+    for(;;)	io::printfn("hi");
+    path::Path p = path::temp_new(path)!; // #warning: This code will never execute
+
+    if (!path::exists(p))
+    {
+		return IoError.FILE_NOT_FOUND?;
+    }
+}
+
+fn int main(String[] args)
+{
+	if (catch err = load_corpus2("foo", "bar"))
+	{
+		return 1;
+	}
+	return 0;
+}
+/* #expect: test.ll
+
+define internal i64 @test.load_corpus2(ptr %0, i64 %1, ptr %2, i64 %3) #0 {
+entry:
+  %code = alloca %"char[]", align 8
+  %path = alloca %"char[]", align 8
+  %retparam = alloca i64, align 8
+  store ptr %0, ptr %code, align 8
+  %ptradd = getelementptr inbounds i8, ptr %code, i64 8
+  store i64 %1, ptr %ptradd, align 8
+  store ptr %2, ptr %path, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %path, i64 8
+  store i64 %3, ptr %ptradd1, align 8
+  br label %loop.body
+
+loop.body:                                        ; preds = %loop.body, %entry
+  %4 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 2, ptr null, i64 0)
+  br label %loop.body
+}
diff --git a/test/test_suite7/statements/default_args.c3 b/test/test_suite7/statements/default_args.c3
new file mode 100644
index 000000000..b90fd6caa
--- /dev/null
+++ b/test/test_suite7/statements/default_args.c3
@@ -0,0 +1,4 @@
+
+def Foo = fn void(int a = 10);
+fn int abc() { return 1; }
+def Foo2 = fn void(int a = abc());
diff --git a/test/test_suite7/statements/default_macro_argc.c3t b/test/test_suite7/statements/default_macro_argc.c3t
new file mode 100644
index 000000000..1d14c8a77
--- /dev/null
+++ b/test/test_suite7/statements/default_macro_argc.c3t
@@ -0,0 +1,287 @@
+// #target: linux-x64
+module test;
+import std, test2;
+
+int[2] x;
+
+macro @test2(#a = x[1])
+{
+	#a = 123;
+}
+macro test($Type = int)  { io::printn($Type.nameof); }
+
+fn void testme() { io::printn("Testme"); }
+macro @test3(#foo = testme()) => #foo;
+
+fn void main()
+{
+	test();
+	@test2();
+	@test3();
+	io::printn(x);
+	test2::test();
+	test2::@test2();
+	test2::@test3();
+	io::printn(test2::x);
+
+}
+
+module test2;
+import std;
+
+int[2] x;
+
+macro @test2(#a = x[1])
+{
+	#a = 12;
+}
+macro test($Type = double)  { io::printn($Type.nameof); }
+
+fn void testme() { io::printn("Testme2"); }
+macro @test3(#foo = testme()) => #foo;
+
+/* #expect: test.ll
+
+
+define void @test.main() #0 {
+entry:
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %x = alloca [2 x i32], align 4
+  %x14 = alloca [2 x i32], align 4
+  %len15 = alloca i64, align 8
+  %error_var16 = alloca i64, align 8
+  %x17 = alloca [2 x i32], align 4
+  %varargslots = alloca [1 x %any], align 16
+  %retparam19 = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %indirectarg = alloca %"any[]", align 8
+  %error_var25 = alloca i64, align 8
+  %error_var31 = alloca i64, align 8
+  %len39 = alloca i64, align 8
+  %error_var40 = alloca i64, align 8
+  %retparam42 = alloca i64, align 8
+  %error_var48 = alloca i64, align 8
+  %error_var54 = alloca i64, align 8
+  %x62 = alloca [2 x i32], align 4
+  %x63 = alloca [2 x i32], align 4
+  %len64 = alloca i64, align 8
+  %error_var65 = alloca i64, align 8
+  %x66 = alloca [2 x i32], align 4
+  %varargslots68 = alloca [1 x %any], align 16
+  %retparam70 = alloca i64, align 8
+  %taddr71 = alloca %any, align 8
+  %indirectarg75 = alloca %"any[]", align 8
+  %error_var81 = alloca i64, align 8
+  %error_var87 = alloca i64, align 8
+  %0 = call ptr @std.io.stdout()
+  %1 = call i64 @std.io.File.write(ptr %retparam, ptr %0, ptr @.str.1, i64 3)
+  %not_err = icmp eq i64 %1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %2, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %1, ptr %error_var, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+noerr_block:                                      ; preds = %after_check
+  %3 = load i64, ptr %retparam, align 8
+  store i64 %3, ptr %len, align 8
+  %4 = call i64 @std.io.File.write_byte(ptr %0, i8 zeroext 10)
+  %not_err3 = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %5, label %after_check5, label %assign_optional4
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %4, ptr %error_var2, align 8
+  br label %guard_block6
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+noerr_block7:                                     ; preds = %after_check5
+  %6 = call i64 @std.io.File.flush(ptr %0)
+  %not_err9 = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %7, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %6, ptr %error_var8, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+noerr_block13:                                    ; preds = %after_check11
+  %8 = load i64, ptr %len, align 8
+  %add = add i64 %8, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  store i32 123, ptr getelementptr inbounds (i8, ptr @test.x, i64 4), align 4
+  call void @test.testme()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @test.x, i32 8, i1 false)
+  %9 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x14, ptr align 4 %x, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x17, ptr align 4 %x14, i32 8, i1 false)
+  %10 = insertvalue %any undef, ptr %9, 0
+  %11 = insertvalue %any %10, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %12 = insertvalue %any undef, ptr %x17, 0
+  %13 = insertvalue %any %12, i64 ptrtoint (ptr @"$ct.a2$int" to i64), 1
+  store %any %13, ptr %varargslots, align 16
+  %14 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %14, i64 1, 1
+  store %any %11, ptr %taddr, align 8
+  %lo = load i64, ptr %taddr, align 8
+  %ptradd = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi = load ptr, ptr %ptradd, align 8
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  %15 = call i64 @std.io.fprintf(ptr %retparam19, i64 %lo, ptr %hi, ptr @.str.2, i64 2, ptr byval(%"any[]") align 8 %indirectarg)
+  %not_err20 = icmp eq i64 %15, 0
+  %16 = call i1 @llvm.expect.i1(i1 %not_err20, i1 true)
+  br i1 %16, label %after_check22, label %assign_optional21
+assign_optional21:                                ; preds = %voiderr
+  store i64 %15, ptr %error_var16, align 8
+  br label %guard_block23
+after_check22:                                    ; preds = %voiderr
+  br label %noerr_block24
+guard_block23:                                    ; preds = %assign_optional21
+  br label %voiderr38
+noerr_block24:                                    ; preds = %after_check22
+  %17 = load i64, ptr %retparam19, align 8
+  store i64 %17, ptr %len15, align 8
+  %18 = call i64 @std.io.File.write_byte(ptr %9, i8 zeroext 10)
+  %not_err26 = icmp eq i64 %18, 0
+  %19 = call i1 @llvm.expect.i1(i1 %not_err26, i1 true)
+  br i1 %19, label %after_check28, label %assign_optional27
+assign_optional27:                                ; preds = %noerr_block24
+  store i64 %18, ptr %error_var25, align 8
+  br label %guard_block29
+after_check28:                                    ; preds = %noerr_block24
+  br label %noerr_block30
+guard_block29:                                    ; preds = %assign_optional27
+  br label %voiderr38
+noerr_block30:                                    ; preds = %after_check28
+  %20 = call i64 @std.io.File.flush(ptr %9)
+  %not_err32 = icmp eq i64 %20, 0
+  %21 = call i1 @llvm.expect.i1(i1 %not_err32, i1 true)
+  br i1 %21, label %after_check34, label %assign_optional33
+assign_optional33:                                ; preds = %noerr_block30
+  store i64 %20, ptr %error_var31, align 8
+  br label %guard_block35
+after_check34:                                    ; preds = %noerr_block30
+  br label %noerr_block36
+guard_block35:                                    ; preds = %assign_optional33
+  br label %voiderr38
+noerr_block36:                                    ; preds = %after_check34
+  %22 = load i64, ptr %len15, align 8
+  %add37 = add i64 %22, 1
+  br label %voiderr38
+voiderr38:                                        ; preds = %noerr_block36, %guard_block35, %guard_block29, %guard_block23
+  %23 = call ptr @std.io.stdout()
+  %24 = call i64 @std.io.File.write(ptr %retparam42, ptr %23, ptr @.str.3, i64 6)
+  %not_err43 = icmp eq i64 %24, 0
+  %25 = call i1 @llvm.expect.i1(i1 %not_err43, i1 true)
+  br i1 %25, label %after_check45, label %assign_optional44
+assign_optional44:                                ; preds = %voiderr38
+  store i64 %24, ptr %error_var40, align 8
+  br label %guard_block46
+after_check45:                                    ; preds = %voiderr38
+  br label %noerr_block47
+guard_block46:                                    ; preds = %assign_optional44
+  br label %voiderr61
+noerr_block47:                                    ; preds = %after_check45
+  %26 = load i64, ptr %retparam42, align 8
+  store i64 %26, ptr %len39, align 8
+  %27 = call i64 @std.io.File.write_byte(ptr %23, i8 zeroext 10)
+  %not_err49 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err49, i1 true)
+  br i1 %28, label %after_check51, label %assign_optional50
+assign_optional50:                                ; preds = %noerr_block47
+  store i64 %27, ptr %error_var48, align 8
+  br label %guard_block52
+after_check51:                                    ; preds = %noerr_block47
+  br label %noerr_block53
+guard_block52:                                    ; preds = %assign_optional50
+  br label %voiderr61
+noerr_block53:                                    ; preds = %after_check51
+  %29 = call i64 @std.io.File.flush(ptr %23)
+  %not_err55 = icmp eq i64 %29, 0
+  %30 = call i1 @llvm.expect.i1(i1 %not_err55, i1 true)
+  br i1 %30, label %after_check57, label %assign_optional56
+assign_optional56:                                ; preds = %noerr_block53
+  store i64 %29, ptr %error_var54, align 8
+  br label %guard_block58
+after_check57:                                    ; preds = %noerr_block53
+  br label %noerr_block59
+guard_block58:                                    ; preds = %assign_optional56
+  br label %voiderr61
+noerr_block59:                                    ; preds = %after_check57
+  %31 = load i64, ptr %len39, align 8
+  %add60 = add i64 %31, 1
+  br label %voiderr61
+voiderr61:                                        ; preds = %noerr_block59, %guard_block58, %guard_block52, %guard_block46
+  store i32 12, ptr getelementptr inbounds (i8, ptr @test2.x, i64 4), align 4
+  call void @test2.testme()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x62, ptr align 4 @test2.x, i32 8, i1 false)
+  %32 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x63, ptr align 4 %x62, i32 8, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x66, ptr align 4 %x63, i32 8, i1 false)
+  %33 = insertvalue %any undef, ptr %32, 0
+  %34 = insertvalue %any %33, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  %35 = insertvalue %any undef, ptr %x66, 0
+  %36 = insertvalue %any %35, i64 ptrtoint (ptr @"$ct.a2$int" to i64), 1
+  store %any %36, ptr %varargslots68, align 16
+  %37 = insertvalue %"any[]" undef, ptr %varargslots68, 0
+  %"$$temp69" = insertvalue %"any[]" %37, i64 1, 1
+  store %any %34, ptr %taddr71, align 8
+  %lo72 = load i64, ptr %taddr71, align 8
+  %ptradd73 = getelementptr inbounds i8, ptr %taddr71, i64 8
+  %hi74 = load ptr, ptr %ptradd73, align 8
+  store %"any[]" %"$$temp69", ptr %indirectarg75, align 8
+  %38 = call i64 @std.io.fprintf(ptr %retparam70, i64 %lo72, ptr %hi74, ptr @.str.4, i64 2, ptr byval(%"any[]") align 8 %indirectarg75)
+  %not_err76 = icmp eq i64 %38, 0
+  %39 = call i1 @llvm.expect.i1(i1 %not_err76, i1 true)
+  br i1 %39, label %after_check78, label %assign_optional77
+assign_optional77:                                ; preds = %voiderr61
+  store i64 %38, ptr %error_var65, align 8
+  br label %guard_block79
+after_check78:                                    ; preds = %voiderr61
+  br label %noerr_block80
+guard_block79:                                    ; preds = %assign_optional77
+  br label %voiderr94
+noerr_block80:                                    ; preds = %after_check78
+  %40 = load i64, ptr %retparam70, align 8
+  store i64 %40, ptr %len64, align 8
+  %41 = call i64 @std.io.File.write_byte(ptr %32, i8 zeroext 10)
+  %not_err82 = icmp eq i64 %41, 0
+  %42 = call i1 @llvm.expect.i1(i1 %not_err82, i1 true)
+  br i1 %42, label %after_check84, label %assign_optional83
+assign_optional83:                                ; preds = %noerr_block80
+  store i64 %41, ptr %error_var81, align 8
+  br label %guard_block85
+after_check84:                                    ; preds = %noerr_block80
+  br label %noerr_block86
+guard_block85:                                    ; preds = %assign_optional83
+  br label %voiderr94
+noerr_block86:                                    ; preds = %after_check84
+  %43 = call i64 @std.io.File.flush(ptr %32)
+  %not_err88 = icmp eq i64 %43, 0
+  %44 = call i1 @llvm.expect.i1(i1 %not_err88, i1 true)
+  br i1 %44, label %after_check90, label %assign_optional89
+assign_optional89:                                ; preds = %noerr_block86
+  store i64 %43, ptr %error_var87, align 8
+  br label %guard_block91
+after_check90:                                    ; preds = %noerr_block86
+  br label %noerr_block92
+guard_block91:                                    ; preds = %assign_optional89
+  br label %voiderr94
+noerr_block92:                                    ; preds = %after_check90
+  %45 = load i64, ptr %len64, align 8
+  %add93 = add i64 %45, 1
+  br label %voiderr94
+voiderr94:                                        ; preds = %noerr_block92, %guard_block91, %guard_block85, %guard_block79
+  ret void
+}
diff --git a/test/test_suite7/statements/defer_break.c3t b/test/test_suite7/statements/defer_break.c3t
new file mode 100644
index 000000000..b14d5ff4b
--- /dev/null
+++ b/test/test_suite7/statements/defer_break.c3t
@@ -0,0 +1,114 @@
+// #target: macos-x64
+module foo;
+
+extern fn void printf(char* message, ...);
+
+fn void defer1() {}
+fn void defer2() {}
+fn void defer3() {}
+fn void defer4() {}
+fn void defer5() {}
+fn void defer6() {}
+fn void defer7() {}
+fn void defer8() {}
+fn void defer9() {}
+fn void defer10() {}
+fn void defer11() {}
+
+fn int main(int argc, char** argv)
+{
+	int a = 0;
+    {
+        defer do {
+            if (a == 1) break;
+            defer1();
+        } while(0);
+        defer2();
+    }
+    defer defer3();
+    while (a)
+    {
+	    defer defer4();
+        if (argc == 1) break;
+        defer defer5();
+        defer6();
+    }
+    defer defer7();
+    while (a)
+    {
+	    defer defer8();
+        if (argc == 1) break;
+        defer defer9();
+        defer10();
+		break;
+    }
+    return 0;
+}
+
+/* #expect: foo.ll
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  %a = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  call void @foo.defer2()
+  %2 = load i32, ptr %a, align 4
+  %eq = icmp eq i32 %2, 1
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  br label %loop.exit
+
+if.exit:                                          ; preds = %entry
+  call void @foo.defer1()
+  br label %loop.exit
+
+loop.exit:                                        ; preds = %if.exit, %if.then
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %if.exit3, %loop.exit
+  %3 = load i32, ptr %a, align 4
+  %i2b = icmp ne i32 %3, 0
+  br i1 %i2b, label %loop.body, label %loop.exit4
+
+loop.body:                                        ; preds = %loop.cond
+  %eq1 = icmp eq i32 %0, 1
+  br i1 %eq1, label %if.then2, label %if.exit3
+
+if.then2:                                         ; preds = %loop.body
+  call void @foo.defer4()
+  br label %loop.exit4
+
+if.exit3:                                         ; preds = %loop.body
+  call void @foo.defer6()
+  call void @foo.defer5()
+  call void @foo.defer4()
+  br label %loop.cond
+
+loop.exit4:                                       ; preds = %if.then2, %loop.cond
+  br label %loop.cond5
+
+loop.cond5:                                       ; preds = %loop.exit4
+  %4 = load i32, ptr %a, align 4
+  %i2b6 = icmp ne i32 %4, 0
+  br i1 %i2b6, label %loop.body7, label %loop.exit11
+
+loop.body7:                                       ; preds = %loop.cond5
+  %eq8 = icmp eq i32 %0, 1
+  br i1 %eq8, label %if.then9, label %if.exit10
+
+if.then9:                                         ; preds = %loop.body7
+  call void @foo.defer8()
+  br label %loop.exit11
+
+if.exit10:                                        ; preds = %loop.body7
+  call void @foo.defer10()
+  call void @foo.defer9()
+  call void @foo.defer8()
+  br label %loop.exit11
+
+loop.exit11:                                      ; preds = %if.exit10, %if.then9, %loop.cond5
+  call void @foo.defer7()
+  call void @foo.defer3()
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/defer_break_simple.c3t b/test/test_suite7/statements/defer_break_simple.c3t
new file mode 100644
index 000000000..de8c5c2fc
--- /dev/null
+++ b/test/test_suite7/statements/defer_break_simple.c3t
@@ -0,0 +1,58 @@
+// #target: macos-x64
+module test;
+
+fn void test2() {}
+fn void testA() {}
+fn void testB() {}
+fn void test3() {}
+
+fn int main(int argc, char** argv)
+{
+	int a = 0;
+    while (a)
+    {
+	    defer test2();
+	    defer
+	    {
+	       testA();
+	       testB();
+	    }
+        if (argc == 1) break;
+        test3();
+    }
+    return 0;
+}
+
+/* #expect: test.ll
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  %a = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %if.exit, %entry
+  %2 = load i32, ptr %a, align 4
+  %i2b = icmp ne i32 %2, 0
+  br i1 %i2b, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %eq = icmp eq i32 %0, 1
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  call void @test.testA()
+  call void @test.testB()
+  call void @test.test2()
+  br label %loop.exit
+
+if.exit:                                          ; preds = %loop.body
+  call void @test.test3()
+  call void @test.testA()
+  call void @test.testB()
+  call void @test.test2()
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %if.then, %loop.cond
+  ret i32 0
+}
diff --git a/test/test_suite7/statements/defer_break_switch.c3t b/test/test_suite7/statements/defer_break_switch.c3t
new file mode 100644
index 000000000..2e03a42c3
--- /dev/null
+++ b/test/test_suite7/statements/defer_break_switch.c3t
@@ -0,0 +1,60 @@
+// #target: macos-x64
+
+fn void test1()
+{}
+
+fn void test2()
+{}
+
+fn void test(int i)
+{
+    bool b = true;
+    switch (i)
+    {
+        case 1:
+            defer test2();
+            if (b) break;
+            test1();
+        case 2:
+            test1();
+    }
+}
+
+/* #expect: defer_break_switch.ll
+
+define void @defer_break_switch.test(i32 %0) #0 {
+entry:
+  %b = alloca i8, align 1
+  %switch = alloca i32, align 4
+  store i8 1, ptr %b, align 1
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  switch i32 %1, label %switch.exit [
+    i32 1, label %switch.case
+    i32 2, label %switch.case1
+  ]
+
+switch.case:                                      ; preds = %switch.entry
+  %2 = load i8, ptr %b, align 1
+  %3 = trunc i8 %2 to i1
+  br i1 %3, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %switch.case
+  call void @defer_break_switch.test2()
+  br label %switch.exit
+
+if.exit:                                          ; preds = %switch.case
+  call void @defer_break_switch.test1()
+  call void @defer_break_switch.test2()
+  br label %switch.exit
+
+switch.case1:                                     ; preds = %switch.entry
+  call void @defer_break_switch.test1()
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.case1, %if.exit, %if.then, %switch.entry
+  ret void
+}
diff --git a/test/test_suite7/statements/defer_continue_bug.c3t b/test/test_suite7/statements/defer_continue_bug.c3t
new file mode 100644
index 000000000..c8c89e5d0
--- /dev/null
+++ b/test/test_suite7/statements/defer_continue_bug.c3t
@@ -0,0 +1,59 @@
+// #target: macos-aarch64
+module test;
+
+fn int main()
+{
+	int[4] x = { 1, 4, 5, 7 };
+	defer
+	{
+		foreach (i : x)
+		{
+			if (i % 2 == 0) continue;
+			int a = 123;
+		}
+	}
+	return 0;
+}
+
+/* #expect: test.ll
+
+entry:
+  %x = alloca [4 x i32], align 4
+  %.anon = alloca i64, align 8
+  %i = alloca i32, align 4
+  %a = alloca i32, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 16, i1 false)
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.inc, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 4, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %x, i64 %1
+  %2 = load i32, ptr %ptroffset, align 4
+  store i32 %2, ptr %i, align 4
+  %3 = load i32, ptr %i, align 4
+  %smod = srem i32 %3, 2
+  %eq = icmp eq i32 %smod, 0
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  br label %loop.inc
+
+if.exit:                                          ; preds = %loop.body
+  store i32 123, ptr %a, align 4
+  br label %loop.inc
+
+loop.inc:                                         ; preds = %if.exit, %if.then
+  %4 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %4, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret i32 0
+}
diff --git a/test/test_suite7/statements/defer_do_while.c3t b/test/test_suite7/statements/defer_do_while.c3t
new file mode 100644
index 000000000..d401502c8
--- /dev/null
+++ b/test/test_suite7/statements/defer_do_while.c3t
@@ -0,0 +1,38 @@
+// #target: macos-x64
+module foo;
+
+fn void test()
+{
+	int a;
+	do
+	{
+		a++;
+		defer a++;
+	} while(a < 10);
+}
+
+/* #expect: foo.ll
+
+define void @foo.test() #0 {
+entry:
+  %a = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  br label %loop.body
+
+loop.cond:                                        ; preds = %loop.body
+  %0 = load i32, ptr %a, align 4
+  %lt = icmp slt i32 %0, 10
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond, %entry
+  %1 = load i32, ptr %a, align 4
+  %add = add i32 %1, 1
+  store i32 %add, ptr %a, align 4
+  %2 = load i32, ptr %a, align 4
+  %add1 = add i32 %2, 1
+  store i32 %add1, ptr %a, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/defer_hash.c3t b/test/test_suite7/statements/defer_hash.c3t
new file mode 100644
index 000000000..7e689fe4e
--- /dev/null
+++ b/test/test_suite7/statements/defer_hash.c3t
@@ -0,0 +1,45 @@
+import std::io;
+
+struct Version {
+	uint major;
+	uint minor;
+}
+
+fn void main()
+{
+	String s = "123.456";
+
+	Version v;
+	v.major = @read_int(s);
+	s = s[1..];
+	v.minor = @read_int(s);
+
+	io::printfn("Version{.major = %d, .minor = %d}", v.major, v.minor);
+}
+
+<*
+	@require values::@is_lvalue(#s)
+*>
+macro int @read_int(String #s)
+{
+	int res = 0;
+	int i = 0;
+
+	String s = #s;
+	defer #s = s[i..]; // commenting out this lines leads to a successful compilation
+
+	while (i < s.len && s[i].is_space())
+	{
+		++i;
+	}
+
+	if (i >= s.len) return res;
+
+	char c;
+	while (i < s.len && (c = s[i]).is_digit())
+	{
+		res = (10 * res) + (c - '0');
+		++i;
+	}
+	return res;
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/defer_if_try_copy.c3t b/test/test_suite7/statements/defer_if_try_copy.c3t
new file mode 100644
index 000000000..74c7dc7dd
--- /dev/null
+++ b/test/test_suite7/statements/defer_if_try_copy.c3t
@@ -0,0 +1,36 @@
+// #target: macos-x64
+module foo;
+import std;
+fn int main()
+{
+    int! cmd = 3;
+    defer
+    {
+        if (try cmd) { io::printfn("HO! %s", cmd); }
+    }
+    return 0;
+}
+/* #expect: foo.ll
+
+define i32 @main() #0 {
+entry:
+  %cmd = alloca i32, align 4
+  %cmd.f = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  store i32 3, ptr %cmd, align 4
+  store i64 0, ptr %cmd.f, align 8
+  %load.err = load i64, ptr %cmd.f, align 8
+  %result = icmp eq i64 %load.err, 0
+  br i1 %result, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %0 = insertvalue %any undef, ptr %cmd, 0
+  %1 = insertvalue %any %0, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %1, ptr %varargslots, align 16
+  %2 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 6, ptr %varargslots, i64 1)
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  ret i32 0
+}
diff --git a/test/test_suite7/statements/defer_in_block.c3t b/test/test_suite7/statements/defer_in_block.c3t
new file mode 100644
index 000000000..2421a0b02
--- /dev/null
+++ b/test/test_suite7/statements/defer_in_block.c3t
@@ -0,0 +1,88 @@
+// #target: macos-x64
+// #deprecation: no
+module foo;
+extern fn void printf(char*,...);
+
+fn void test(int x)
+{
+	defer printf("---\n");
+	{|
+		defer printf("Hello %d\n", x);
+		x *= 2;
+		if (x < 100) return;
+		x *= 10000;
+	|};
+	printf("+++\n");
+	if (x == 0)
+	{
+		printf("0x\n");
+		return;
+	}
+    if (x == 1) return;
+}
+
+fn void main()
+{
+	test(123);
+	test(1);
+	test(0);
+}
+/* #expect: foo.ll
+
+define void @foo.test(i32 %0) #0 {
+entry:
+  %x = alloca i32, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %mul = mul i32 %1, 2
+  store i32 %mul, ptr %x, align 4
+  %2 = load i32, ptr %x, align 4
+  %lt = icmp slt i32 %2, 100
+  br i1 %lt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %3 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str, i32 %3)
+  br label %expr_block.exit
+
+if.exit:                                          ; preds = %entry
+  %4 = load i32, ptr %x, align 4
+  %mul1 = mul i32 %4, 10000
+  store i32 %mul1, ptr %x, align 4
+  %5 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %5)
+  br label %expr_block.exit
+
+expr_block.exit:                                  ; preds = %if.exit, %if.then
+  call void (ptr, ...) @printf(ptr @.str.2)
+  %6 = load i32, ptr %x, align 4
+  %eq = icmp eq i32 %6, 0
+  br i1 %eq, label %if.then2, label %if.exit3
+
+if.then2:                                         ; preds = %expr_block.exit
+  call void (ptr, ...) @printf(ptr @.str.3)
+  call void (ptr, ...) @printf(ptr @.str.4)
+  ret void
+
+if.exit3:                                         ; preds = %expr_block.exit
+  %7 = load i32, ptr %x, align 4
+  %eq4 = icmp eq i32 %7, 1
+  br i1 %eq4, label %if.then5, label %if.exit6
+
+if.then5:                                         ; preds = %if.exit3
+  call void (ptr, ...) @printf(ptr @.str.5)
+  ret void
+
+if.exit6:                                         ; preds = %if.exit3
+  call void (ptr, ...) @printf(ptr @.str.6)
+  ret void
+}
+
+
+define void @foo.main() #0 {
+entry:
+  call void @foo.test(i32 123)
+  call void @foo.test(i32 1)
+  call void @foo.test(i32 0)
+  ret void
+}
diff --git a/test/test_suite7/statements/defer_in_defer.c3t b/test/test_suite7/statements/defer_in_defer.c3t
new file mode 100644
index 000000000..eefb0a289
--- /dev/null
+++ b/test/test_suite7/statements/defer_in_defer.c3t
@@ -0,0 +1,38 @@
+// #target: macos-aarch64
+fn void test1() {}
+fn void test2() {}
+fn void test3() {}
+fn void test4() {}
+
+fn void test()
+{
+    defer
+    {
+        defer test1();
+        test2();
+        defer test3();
+    }
+    test4();
+}
+
+fn void test_line()
+{
+    defer { defer test1(); }
+}
+
+/* #expect: defer_in_defer.ll
+
+define void @defer_in_defer.test() #0 {
+entry:
+  call void @defer_in_defer.test4()
+  call void @defer_in_defer.test2()
+  call void @defer_in_defer.test3()
+  call void @defer_in_defer.test1()
+  ret void
+}
+
+define void @defer_in_defer.test_line() #0 {
+entry:
+  call void @defer_in_defer.test1()
+  ret void
+}
diff --git a/test/test_suite7/statements/defer_in_defer2.c3t b/test/test_suite7/statements/defer_in_defer2.c3t
new file mode 100644
index 000000000..5de8af3a3
--- /dev/null
+++ b/test/test_suite7/statements/defer_in_defer2.c3t
@@ -0,0 +1,120 @@
+// #target: macos-x64
+
+module test;
+extern fn void printf(char*,...);
+
+fn void test(int x)
+{
+	defer
+	{
+		do
+		{
+			defer printf("Hello %d\n", x);
+			x *= 2;
+			if (x < 100) break;
+			x *= 10000;
+		};
+	}
+	if (x == 1)
+	{
+		printf("1x\n");
+		return;
+	}
+    if (x == 0) return;
+}
+
+fn void main()
+{
+	test(123);
+	test(1);
+	test(0);
+}
+
+/* #expect: test.ll
+
+define void @test.test(i32 %0) #0 {
+entry:
+  %x = alloca i32, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %eq = icmp eq i32 %1, 1
+  br i1 %eq, label %if.then, label %if.exit3
+
+if.then:                                          ; preds = %entry
+  call void (ptr, ...) @printf(ptr @.str)
+  %2 = load i32, ptr %x, align 4
+  %mul = mul i32 %2, 2
+  store i32 %mul, ptr %x, align 4
+  %3 = load i32, ptr %x, align 4
+  %lt = icmp slt i32 %3, 100
+  br i1 %lt, label %if.then1, label %if.exit
+
+if.then1:                                         ; preds = %if.then
+  %4 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %4)
+  br label %loop.exit
+
+if.exit:                                          ; preds = %if.then
+  %5 = load i32, ptr %x, align 4
+  %mul2 = mul i32 %5, 10000
+  store i32 %mul2, ptr %x, align 4
+  %6 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %6)
+  br label %loop.exit
+
+loop.exit:                                        ; preds = %if.exit, %if.then1
+  ret void
+
+if.exit3:                                         ; preds = %entry
+  %7 = load i32, ptr %x, align 4
+  %eq4 = icmp eq i32 %7, 0
+  br i1 %eq4, label %if.then5, label %if.exit12
+
+if.then5:                                         ; preds = %if.exit3
+  %8 = load i32, ptr %x, align 4
+  %mul6 = mul i32 %8, 2
+  store i32 %mul6, ptr %x, align 4
+  %9 = load i32, ptr %x, align 4
+  %lt7 = icmp slt i32 %9, 100
+  br i1 %lt7, label %if.then8, label %if.exit9
+
+if.then8:                                         ; preds = %if.then5
+  %10 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %10)
+  br label %loop.exit11
+
+if.exit9:                                         ; preds = %if.then5
+  %11 = load i32, ptr %x, align 4
+  %mul10 = mul i32 %11, 10000
+  store i32 %mul10, ptr %x, align 4
+  %12 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %12)
+  br label %loop.exit11
+
+loop.exit11:                                      ; preds = %if.exit9, %if.then8
+  ret void
+
+if.exit12:                                        ; preds = %if.exit3
+  %13 = load i32, ptr %x, align 4
+  %mul13 = mul i32 %13, 2
+  store i32 %mul13, ptr %x, align 4
+  %14 = load i32, ptr %x, align 4
+  %lt14 = icmp slt i32 %14, 100
+  br i1 %lt14, label %if.then15, label %if.exit16
+
+if.then15:                                        ; preds = %if.exit12
+  %15 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.5, i32 %15)
+  br label %loop.exit18
+
+if.exit16:                                        ; preds = %if.exit12
+  %16 = load i32, ptr %x, align 4
+  %mul17 = mul i32 %16, 10000
+  store i32 %mul17, ptr %x, align 4
+  %17 = load i32, ptr %x, align 4
+  call void (ptr, ...) @printf(ptr @.str.6, i32 %17)
+  br label %loop.exit18
+
+loop.exit18:                                      ; preds = %if.exit16, %if.then15
+  ret void
+}
diff --git a/test/test_suite7/statements/defer_in_defer3.c3t b/test/test_suite7/statements/defer_in_defer3.c3t
new file mode 100644
index 000000000..cef9b6a37
--- /dev/null
+++ b/test/test_suite7/statements/defer_in_defer3.c3t
@@ -0,0 +1,46 @@
+// #target: macos-x64
+// #debuginfo: yes
+module test;
+extern fn void printf(char*,...);
+
+fn void test(int x)
+{
+	defer
+	{
+		do
+		{
+			defer {
+				x = 0;
+				printf("Hello\n");
+				defer x = 1;
+			}
+			if (x < 100) break;
+		};
+	}
+}
+
+fn int main()
+{
+	test(0);
+	return 0;
+}
+
+/* #expect: test.ll
+
+  %x = alloca i32, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4, !dbg !15
+  %lt = icmp slt i32 %1, 100, !dbg !15
+  br i1 %lt, label %if.then, label %if.exit, !dbg !15
+if.then:                                          ; preds = %entry
+  store i32 0, ptr %x, align 4, !dbg !19
+  call void (ptr, ...) @printf(ptr @.str), !dbg !21
+  store i32 1, ptr %x, align 4, !dbg !22
+  br label %loop.exit, !dbg !22
+if.exit:                                          ; preds = %entry
+  store i32 0, ptr %x, align 4, !dbg !24
+  call void (ptr, ...) @printf(ptr @.str.1), !dbg !26
+  store i32 1, ptr %x, align 4, !dbg !27
+  br label %loop.exit, !dbg !27
+loop.exit:                                        ; preds = %if.exit, %if.then
+  ret void, !dbg !27
\ No newline at end of file
diff --git a/test/test_suite7/statements/defer_next_switch.c3t b/test/test_suite7/statements/defer_next_switch.c3t
new file mode 100644
index 000000000..0c0afb59d
--- /dev/null
+++ b/test/test_suite7/statements/defer_next_switch.c3t
@@ -0,0 +1,59 @@
+// #target: macos-aarch64
+fn void test1()
+{}
+
+fn void test2()
+{}
+
+fn void test(int i)
+{
+    bool b = true;
+    switch (i)
+    {
+        case 1:
+            defer test2();
+            if (b) nextcase;
+            test1();
+        case 2:
+            test1();
+    }
+}
+
+/* #expect: defer_next_switch.ll
+
+define void @defer_next_switch.test(i32 %0) #0 {
+entry:
+  %b = alloca i8, align 1
+  %switch = alloca i32, align 4
+  store i8 1, ptr %b, align 1
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  switch i32 %1, label %switch.exit [
+    i32 1, label %switch.case
+    i32 2, label %switch.case1
+  ]
+
+switch.case:                                      ; preds = %switch.entry
+  %2 = load i8, ptr %b, align 1
+  %3 = trunc i8 %2 to i1
+  br i1 %3, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %switch.case
+  call void @defer_next_switch.test2()
+  br label %switch.case1
+
+if.exit:                                          ; preds = %switch.case
+  call void @defer_next_switch.test1()
+  call void @defer_next_switch.test2()
+  br label %switch.exit
+
+switch.case1:                                     ; preds = %switch.entry, %if.then
+  call void @defer_next_switch.test1()
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.case1, %if.exit, %switch.entry
+  ret void
+}
diff --git a/test/test_suite7/statements/defer_return.c3t b/test/test_suite7/statements/defer_return.c3t
new file mode 100644
index 000000000..b51506559
--- /dev/null
+++ b/test/test_suite7/statements/defer_return.c3t
@@ -0,0 +1,99 @@
+// #target: macos-x64
+module test;
+fn void test1() {}
+fn void test2() {}
+fn void test3() {}
+fn void test4() {}
+fn void test5() {}
+fn void test6() {}
+fn void test7() {}
+fn void test8() {}
+fn void test9() {}
+
+fn int main(int argc, char **argv)
+{
+    defer test1();
+    int a = 0;
+    while (a)
+    {
+	    defer test2();
+        if (argc == 1) return a + argc;
+        defer test3();
+        test4();
+    }
+    defer test5();
+    while (a)
+    {
+        defer test6();
+        if (argc == 1) return a + 2;
+        defer test7();
+		test8();
+		return 2 + 2;
+    }
+    return 0 + argc;
+}
+
+/* #expect: test.ll
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  %a = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %if.exit, %entry
+  %2 = load i32, ptr %a, align 4
+  %i2b = icmp ne i32 %2, 0
+  br i1 %i2b, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %eq = icmp eq i32 %0, 1
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  %3 = load i32, ptr %a, align 4
+  %add = add i32 %3, %0
+  call void @test.test2()
+  call void @test.test1()
+  ret i32 %add
+
+if.exit:                                          ; preds = %loop.body
+  call void @test.test4()
+  call void @test.test3()
+  call void @test.test2()
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  br label %loop.cond1
+
+loop.cond1:                                       ; preds = %loop.exit
+  %4 = load i32, ptr %a, align 4
+  %i2b2 = icmp ne i32 %4, 0
+  br i1 %i2b2, label %loop.body3, label %loop.exit8
+
+loop.body3:                                       ; preds = %loop.cond1
+  %eq4 = icmp eq i32 %0, 1
+  br i1 %eq4, label %if.then5, label %if.exit7
+
+if.then5:                                         ; preds = %loop.body3
+  %5 = load i32, ptr %a, align 4
+  %add6 = add i32 %5, 2
+  call void @test.test6()
+  call void @test.test5()
+  call void @test.test1()
+  ret i32 %add6
+
+if.exit7:                                         ; preds = %loop.body3
+  call void @test.test8()
+  call void @test.test7()
+  call void @test.test6()
+  call void @test.test5()
+  call void @test.test1()
+  ret i32 4
+
+loop.exit8:                                       ; preds = %loop.cond1
+  %add9 = add i32 0, %0
+  call void @test.test5()
+  call void @test.test1()
+  ret i32 %add9
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/defer_test.c3 b/test/test_suite7/statements/defer_test.c3
new file mode 100644
index 000000000..81b9bf3e9
--- /dev/null
+++ b/test/test_suite7/statements/defer_test.c3
@@ -0,0 +1,9 @@
+fn void test()
+{
+    int i = 0;
+    defer
+    {
+        i = i + 1;
+    }
+    return;
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/defer_with_loop.c3t b/test/test_suite7/statements/defer_with_loop.c3t
new file mode 100644
index 000000000..be69a28bc
--- /dev/null
+++ b/test/test_suite7/statements/defer_with_loop.c3t
@@ -0,0 +1,108 @@
+// #target: macos-x64
+module test;
+
+extern fn void printf(char*,...);
+
+fn void test(int x)
+{
+	defer
+	{
+		for (int i = 0; i < 3; i++)
+		{
+			printf("%d\n", x + i);
+		}
+	}
+	if (x == 1)
+	{
+		printf("1x\n");
+		return;
+	}
+    if (x == 0) return;
+}
+
+fn void main()
+{
+	test(123);
+	test(1);
+	test(0);
+}
+
+/* #expect: test.ll
+
+define void @test.test(i32 %0) #0 {
+entry:
+  %i = alloca i32, align 4
+  %i4 = alloca i32, align 4
+  %i12 = alloca i32, align 4
+  %eq = icmp eq i32 %0, 1
+  br i1 %eq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  call void (ptr, ...) @printf(ptr @.str)
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %if.then
+  %1 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %1, 3
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load i32, ptr %i, align 4
+  %add = add i32 %0, %2
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %add)
+  %3 = load i32, ptr %i, align 4
+  %add1 = add i32 %3, 1
+  store i32 %add1, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret void
+
+if.exit:                                          ; preds = %entry
+  %eq2 = icmp eq i32 %0, 0
+  br i1 %eq2, label %if.then3, label %if.exit11
+
+if.then3:                                         ; preds = %if.exit
+  store i32 0, ptr %i4, align 4
+  br label %loop.cond5
+
+loop.cond5:                                       ; preds = %loop.body7, %if.then3
+  %4 = load i32, ptr %i4, align 4
+  %lt6 = icmp slt i32 %4, 3
+  br i1 %lt6, label %loop.body7, label %loop.exit10
+
+loop.body7:                                       ; preds = %loop.cond5
+  %5 = load i32, ptr %i4, align 4
+  %add8 = add i32 %0, %5
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %add8)
+  %6 = load i32, ptr %i4, align 4
+  %add9 = add i32 %6, 1
+  store i32 %add9, ptr %i4, align 4
+  br label %loop.cond5
+
+loop.exit10:                                      ; preds = %loop.cond5
+  ret void
+
+if.exit11:                                        ; preds = %if.exit
+  store i32 0, ptr %i12, align 4
+  br label %loop.cond13
+
+loop.cond13:                                      ; preds = %loop.body15, %if.exit11
+  %7 = load i32, ptr %i12, align 4
+  %lt14 = icmp slt i32 %7, 3
+  br i1 %lt14, label %loop.body15, label %loop.exit18
+
+loop.body15:                                      ; preds = %loop.cond13
+  %8 = load i32, ptr %i12, align 4
+  %add16 = add i32 %0, %8
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %add16)
+  %9 = load i32, ptr %i12, align 4
+  %add17 = add i32 %9, 1
+  store i32 %add17, ptr %i12, align 4
+  br label %loop.cond13
+
+loop.exit18:                                      ; preds = %loop.cond13
+  ret void
+}
+
diff --git a/test/test_suite7/statements/do_without_compound.c3 b/test/test_suite7/statements/do_without_compound.c3
new file mode 100644
index 000000000..b37b73729
--- /dev/null
+++ b/test/test_suite7/statements/do_without_compound.c3
@@ -0,0 +1,5 @@
+fn void test1()
+{
+	do test1(); while(1); // #error: A do loop must use { } around its body
+}
+
diff --git a/test/test_suite7/statements/exhaustive_switch.c3t b/test/test_suite7/statements/exhaustive_switch.c3t
new file mode 100644
index 000000000..562536d4e
--- /dev/null
+++ b/test/test_suite7/statements/exhaustive_switch.c3t
@@ -0,0 +1,39 @@
+// #target: macos-x64
+module test;
+import std::io;
+
+enum Foo
+{
+	ABC,
+	DEF
+}
+
+fn int hello(Foo a)
+{
+	switch (a)
+	{
+		case ABC: return 1;
+		case DEF: return 0;
+	}
+}
+
+/* #expect: test.ll
+
+define i32 @test.hello(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  switch i32 %1, label %switch.exit [
+    i32 0, label %switch.case
+    i32 1, label %switch.case1
+  ]
+switch.case:                                      ; preds = %switch.entry
+  ret i32 1
+switch.case1:                                     ; preds = %switch.entry
+  ret i32 0
+switch.exit:                                      ; preds = %switch.entry
+  unreachable
+}
diff --git a/test/test_suite7/statements/fallthough_do.c3t b/test/test_suite7/statements/fallthough_do.c3t
new file mode 100644
index 000000000..3799ea3a4
--- /dev/null
+++ b/test/test_suite7/statements/fallthough_do.c3t
@@ -0,0 +1,80 @@
+// #target: macos-x64
+
+module foo;
+fn int test()
+{
+    static int x = 0;
+    return 1 + x++;
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    int i = 10;
+    do
+    {
+        printf("%d\n", test());
+    } while (false);
+    do
+    {
+        printf("%d, %d\n", i, test());
+    };
+    do
+    {
+        if (i < 0) continue;
+        printf("A\n", i, test());
+    };
+    do
+    {
+        if (i < 0) break;
+        printf("B\n", i, test());
+    };
+
+}
+
+/* #expect: foo.ll
+
+@test.x = internal unnamed_addr global i32 0, align 4
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@.str.1 = private unnamed_addr constant [8 x i8] c"%d, %d\0A\00", align 1
+
+define void @foo.main() #0 {
+entry:
+  %i = alloca i32, align 4
+  store i32 10, ptr %i, align 4
+  %0 = call i32 @foo.test()
+  call void (ptr, ...) @printf(ptr @.str, i32 %0)
+  %1 = call i32 @foo.test()
+  %2 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %2, i32 %1)
+  %3 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %3, 0
+  br i1 %lt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  br label %loop.exit
+
+if.exit:                                          ; preds = %entry
+  %4 = call i32 @foo.test()
+  %5 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %5, i32 %4)
+  br label %loop.exit
+
+loop.exit:                                        ; preds = %if.exit, %if.then
+  %6 = load i32, ptr %i, align 4
+  %lt1 = icmp slt i32 %6, 0
+  br i1 %lt1, label %if.then2, label %if.exit3
+
+if.then2:                                         ; preds = %loop.exit
+  br label %loop.exit4
+
+if.exit3:                                         ; preds = %loop.exit
+  %7 = call i32 @foo.test()
+  %8 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %8, i32 %7)
+  br label %loop.exit4
+
+loop.exit4:                                       ; preds = %if.exit3, %if.then2
+  ret void
+}
diff --git a/test/test_suite7/statements/for.c3 b/test/test_suite7/statements/for.c3
new file mode 100644
index 000000000..eff1fcdc7
--- /dev/null
+++ b/test/test_suite7/statements/for.c3
@@ -0,0 +1,24 @@
+module for_test;
+
+
+
+fn int test1()
+{
+    for (int x = 0;;)
+    {
+    }
+}
+
+fn int test2()
+{
+    for (int x = 0; 1 ;)
+    {
+    }
+}
+
+fn int test3()
+{
+    for (; 1 ;2)
+    {
+    }
+}
diff --git a/test/test_suite7/statements/for_empty.c3 b/test/test_suite7/statements/for_empty.c3
new file mode 100644
index 000000000..d795a0173
--- /dev/null
+++ b/test/test_suite7/statements/for_empty.c3
@@ -0,0 +1,8 @@
+fn int test1()
+{
+    for (;;);
+}
+fn int test2()
+{
+    for (;;) {}
+}
diff --git a/test/test_suite7/statements/for_errors.c3 b/test/test_suite7/statements/for_errors.c3
new file mode 100644
index 000000000..c013a65bc
--- /dev/null
+++ b/test/test_suite7/statements/for_errors.c3
@@ -0,0 +1,7 @@
+fn void foo() {}
+
+fn int main()
+{
+    for (; foo() ; ) {}      // #error: Expected a boolean expression
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/for_statement_placement.c3 b/test/test_suite7/statements/for_statement_placement.c3
new file mode 100644
index 000000000..a3160537b
--- /dev/null
+++ b/test/test_suite7/statements/for_statement_placement.c3
@@ -0,0 +1,13 @@
+fn void test(int x)
+{}
+
+fn void main()
+{
+	for (int i = 0; i < 10; i++) test(
+		i
+	);
+	for (int i = 0; i < 10; i++)
+		test( // #error: A single statement after
+		i
+	);
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/for_with_extra_declarations.c3 b/test/test_suite7/statements/for_with_extra_declarations.c3
new file mode 100644
index 000000000..12a04a1f7
--- /dev/null
+++ b/test/test_suite7/statements/for_with_extra_declarations.c3
@@ -0,0 +1,17 @@
+fn void test()
+{
+    int j;
+    for (int i = 0; i < 10; i++)
+    {
+
+    }
+    for (int i = 0, int foo = 0; i < 10; i++)
+    {
+
+    }
+
+    for (int i = 0, j = 1; i < 10; i++, j++)
+    {
+
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/for_with_optional.c3t b/test/test_suite7/statements/for_with_optional.c3t
new file mode 100644
index 000000000..bf04c5aea
--- /dev/null
+++ b/test/test_suite7/statements/for_with_optional.c3t
@@ -0,0 +1,128 @@
+// #target: macos-x64
+module test;
+
+fn void! test()
+{
+	int! n;
+	for (n += 1; n! < 10; n += 1);
+}
+fn int main()
+{
+	(void)test();
+	int! n;
+	for (n += 1; n!! < 10; n += 1);
+	return 0;
+}
+
+/* #expect: test.ll
+
+define i64 @test.test() #0 {
+entry:
+  %n = alloca i32, align 4
+  %n.f = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  store i64 0, ptr %n.f, align 8
+  store i32 0, ptr %n, align 4
+  %optval = load i64, ptr %n.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %voiderr
+after_check:                                      ; preds = %entry
+  %1 = load i32, ptr %n, align 4
+  %add = add i32 %1, 1
+  store i32 %add, ptr %n, align 4
+  br label %voiderr
+voiderr:                                          ; preds = %after_check, %entry
+  br label %loop.cond
+loop.cond:                                        ; preds = %voiderr8, %voiderr
+  %optval1 = load i64, ptr %n.f, align 8
+  %not_err2 = icmp eq i64 %optval1, 0
+  %2 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %2, label %after_check3, label %assign_optional
+assign_optional:                                  ; preds = %loop.cond
+  store i64 %optval1, ptr %error_var, align 8
+  br label %guard_block
+after_check3:                                     ; preds = %loop.cond
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  %3 = load i64, ptr %error_var, align 8
+  ret i64 %3
+noerr_block:                                      ; preds = %after_check3
+  %4 = load i32, ptr %n, align 4
+  %lt = icmp slt i32 %4, 10
+  br i1 %lt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %noerr_block
+  %optval4 = load i64, ptr %n.f, align 8
+  %not_err5 = icmp eq i64 %optval4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %5, label %after_check6, label %voiderr8
+after_check6:                                     ; preds = %loop.body
+  %6 = load i32, ptr %n, align 4
+  %add7 = add i32 %6, 1
+  store i32 %add7, ptr %n, align 4
+  br label %voiderr8
+voiderr8:                                         ; preds = %after_check6, %loop.body
+  br label %loop.cond
+loop.exit:                                        ; preds = %noerr_block
+  ret i64 0
+}
+
+define i32 @main() #0 {
+entry:
+  %n = alloca i32, align 4
+  %n.f = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %indirectarg = alloca %"any[]", align 8
+  %0 = call i64 @test.test()
+  store i64 0, ptr %n.f, align 8
+  store i32 0, ptr %n, align 4
+  %optval = load i64, ptr %n.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %1, label %after_check, label %voiderr
+after_check:                                      ; preds = %entry
+  %2 = load i32, ptr %n, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %n, align 4
+  br label %voiderr
+voiderr:                                          ; preds = %after_check, %entry
+  br label %loop.cond
+loop.cond:                                        ; preds = %voiderr8, %voiderr
+  %optval1 = load i64, ptr %n.f, align 8
+  %not_err2 = icmp eq i64 %optval1, 0
+  %3 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
+  br i1 %3, label %after_check3, label %assign_optional
+assign_optional:                                  ; preds = %loop.cond
+  store i64 %optval1, ptr %error_var, align 8
+  br label %panic_block
+after_check3:                                     ; preds = %loop.cond
+  br label %noerr_block
+panic_block:                                      ; preds = %assign_optional
+  %4 = insertvalue %any undef, ptr %error_var, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %6 = insertvalue %"any[]" undef, ptr %varargslots, 0
+  %"$$temp" = insertvalue %"any[]" %6, i64 1, 1
+  store %"any[]" %"$$temp", ptr %indirectarg, align 8
+  call void @std.core.builtin.panicf(
+  unreachable
+noerr_block:                                      ; preds = %after_check3
+  %7 = load i32, ptr %n, align 4
+  %lt = icmp slt i32 %7, 10
+  br i1 %lt, label %loop.body, label %loop.exit
+loop.body:                                        ; preds = %noerr_block
+  %optval4 = load i64, ptr %n.f, align 8
+  %not_err5 = icmp eq i64 %optval4, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
+  br i1 %8, label %after_check6, label %voiderr8
+after_check6:                                     ; preds = %loop.body
+  %9 = load i32, ptr %n, align 4
+  %add7 = add i32 %9, 1
+  store i32 %add7, ptr %n, align 4
+  br label %voiderr8
+voiderr8:                                         ; preds = %after_check6, %loop.body
+  br label %loop.cond
+loop.exit:                                        ; preds = %noerr_block
+  ret i32 0
+}
diff --git a/test/test_suite7/statements/foreach_break.c3t b/test/test_suite7/statements/foreach_break.c3t
new file mode 100644
index 000000000..66bd8dcd7
--- /dev/null
+++ b/test/test_suite7/statements/foreach_break.c3t
@@ -0,0 +1,73 @@
+// #target: macos-x64
+module test;
+
+fn void test()
+{
+    int[3] x;
+    int g = 0;
+    foreach (z : x)
+    {
+        if (z > 0) break;
+        if (z == 1) continue;
+        g += z;
+    }
+}
+
+/* #expect: test.ll
+
+define void @test.test() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %g = alloca i32, align 4
+  %.anon = alloca i64, align 8
+  %z = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  store i32 0, ptr %g, align 4
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.inc, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 3, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %x, i64 %1
+  %2 = load i32, ptr %ptroffset, align 4
+  store i32 %2, ptr %z, align 4
+  %3 = load i32, ptr %z, align 4
+  %gt2 = icmp sgt i32 %3, 0
+  br i1 %gt2, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  br label %loop.exit
+
+if.exit:                                          ; preds = %loop.body
+  %4 = load i32, ptr %z, align 4
+  %eq = icmp eq i32 %4, 1
+  br i1 %eq, label %if.then3, label %if.exit4
+
+if.then3:                                         ; preds = %if.exit
+  br label %loop.inc
+
+if.exit4:                                         ; preds = %if.exit
+  %5 = load i32, ptr %g, align 4
+  %6 = load i32, ptr %z, align 4
+  %add = add i32 %5, %6
+  store i32 %add, ptr %g, align 4
+  br label %loop.inc
+
+loop.inc:                                         ; preds = %if.exit4, %if.then3
+  %7 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %7, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %if.then, %loop.cond
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/foreach_common.c3t b/test/test_suite7/statements/foreach_common.c3t
new file mode 100644
index 000000000..66ec250d1
--- /dev/null
+++ b/test/test_suite7/statements/foreach_common.c3t
@@ -0,0 +1,359 @@
+// #target: macos-x64
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    float[3] foo = { 2, 4.5, 8 };
+    float[<3>] foo2 = { 2, 4.5, 8 };
+    foreach (a : foo)
+    {
+        printf("Value: %f\n", a);
+    }
+    foreach (float* &a : foo)
+    {
+        *a *= 2;
+        printf("Value: %f\n", *a);
+    }
+    foreach (void* &a : foo)
+    {
+        printf("Value: %f\n", *((float*)(a)));
+    }
+    foreach (i, a : foo)
+    {
+        printf("Value[%d]: %f\n", i, a);
+    }
+    foreach (char i, double a : foo)
+    {
+        printf("Value2[%d]: %f\n", i, a);
+    }
+    foreach (double a : foo)
+    {
+        printf("Value3: %f\n", a);
+    }
+
+    foreach (a : foo2)
+    {
+        printf("Value: %f\n", a);
+    }
+    foreach (float* &a : foo2)
+    {
+        *a *= 2;
+        printf("Value: %f\n", *a);
+    }
+    foreach (i, a : foo2)
+    {
+        printf("Value[%d]: %f\n", i, a);
+    }
+    foreach (char i, double a : foo2)
+    {
+        printf("Value2[%d]: %f\n", i, a);
+    }
+    foreach (double a : foo2)
+    {
+        printf("Value3: %f\n", a);
+    }
+}
+
+/* #expect: test.ll
+
+entry:
+  %foo = alloca [3 x float], align 4
+  %foo2 = alloca <3 x float>, align 16
+  %.anon = alloca i64, align 8
+  %a = alloca float, align 4
+  %.anon1 = alloca i64, align 8
+  %a5 = alloca ptr, align 8
+  %.anon10 = alloca i64, align 8
+  %a14 = alloca ptr, align 8
+  %.anon19 = alloca i64, align 8
+  %i = alloca i64, align 8
+  %a23 = alloca float, align 4
+  %.anon28 = alloca i64, align 8
+  %i32 = alloca i8, align 1
+  %a33 = alloca double, align 8
+  %.anon38 = alloca i64, align 8
+  %a42 = alloca double, align 8
+  %.anon47 = alloca i64, align 8
+  %a51 = alloca float, align 4
+  %.anon55 = alloca i64, align 8
+  %a59 = alloca ptr, align 8
+  %.anon65 = alloca i64, align 8
+  %i69 = alloca i64, align 8
+  %a70 = alloca float, align 4
+  %.anon74 = alloca i64, align 8
+  %i78 = alloca i8, align 1
+  %a80 = alloca double, align 8
+  %.anon85 = alloca i64, align 8
+  %a89 = alloca double, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %foo, ptr align 4 @.__const, i32 12, i1 false)
+  store <3 x float> <float 2.000000e+00, float 4.500000e+00, float 8.000000e+00>, ptr %foo2, align 16
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 3, %0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %foo, i64 %1
+  %2 = load float, ptr %ptroffset, align 4
+  store float %2, ptr %a, align 4
+  %3 = load float, ptr %a, align 4
+  %fpfpext = fpext float %3 to double
+  call void (ptr, ...) @printf(ptr @.str, double %fpfpext)
+  %4 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %4, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  store i64 0, ptr %.anon1, align 8
+  br label %loop.cond2
+
+loop.cond2:                                       ; preds = %loop.body4, %loop.exit
+  %5 = load i64, ptr %.anon1, align 8
+  %gt3 = icmp ugt i64 3, %5
+  br i1 %gt3, label %loop.body4, label %loop.exit9
+
+loop.body4:                                       ; preds = %loop.cond2
+  %6 = load i64, ptr %.anon1, align 8
+  %ptroffset6 = getelementptr inbounds [4 x i8], ptr %foo, i64 %6
+  store ptr %ptroffset6, ptr %a5, align 8
+  %7 = load ptr, ptr %a5, align 8
+  %8 = load float, ptr %7, align 4
+  %fmul = fmul float %8, 2.000000e+00
+  store float %fmul, ptr %7, align 4
+  %9 = load ptr, ptr %a5, align 8
+  %10 = load float, ptr %9, align 4
+  %fpfpext7 = fpext float %10 to double
+  call void (ptr, ...) @printf(ptr @.str.1, double %fpfpext7)
+  %11 = load i64, ptr %.anon1, align 8
+  %addnuw8 = add nuw i64 %11, 1
+  store i64 %addnuw8, ptr %.anon1, align 8
+  br label %loop.cond2
+
+loop.exit9:                                       ; preds = %loop.cond2
+  store i64 0, ptr %.anon10, align 8
+  br label %loop.cond11
+
+loop.cond11:                                      ; preds = %loop.body13, %loop.exit9
+  %12 = load i64, ptr %.anon10, align 8
+  %gt12 = icmp ugt i64 3, %12
+  br i1 %gt12, label %loop.body13, label %loop.exit18
+
+loop.body13:                                      ; preds = %loop.cond11
+  %13 = load i64, ptr %.anon10, align 8
+  %ptroffset15 = getelementptr inbounds [4 x i8], ptr %foo, i64 %13
+  store ptr %ptroffset15, ptr %a14, align 8
+  %14 = load ptr, ptr %a14, align 8
+  %15 = load float, ptr %14, align 4
+  %fpfpext16 = fpext float %15 to double
+  call void (ptr, ...) @printf(ptr @.str.2, double %fpfpext16)
+  %16 = load i64, ptr %.anon10, align 8
+  %addnuw17 = add nuw i64 %16, 1
+  store i64 %addnuw17, ptr %.anon10, align 8
+  br label %loop.cond11
+
+loop.exit18:                                      ; preds = %loop.cond11
+  store i64 0, ptr %.anon19, align 8
+  br label %loop.cond20
+
+loop.cond20:                                      ; preds = %loop.body22, %loop.exit18
+  %17 = load i64, ptr %.anon19, align 8
+  %gt21 = icmp ugt i64 3, %17
+  br i1 %gt21, label %loop.body22, label %loop.exit27
+
+loop.body22:                                      ; preds = %loop.cond20
+  %18 = load i64, ptr %.anon19, align 8
+  store i64 %18, ptr %i, align 8
+  %19 = load i64, ptr %.anon19, align 8
+  %ptroffset24 = getelementptr inbounds [4 x i8], ptr %foo, i64 %19
+  %20 = load float, ptr %ptroffset24, align 4
+  store float %20, ptr %a23, align 4
+  %21 = load float, ptr %a23, align 4
+  %fpfpext25 = fpext float %21 to double
+  %22 = load i64, ptr %i, align 8
+  call void (ptr, ...) @printf(ptr @.str.3, i64 %22, double %fpfpext25)
+  %23 = load i64, ptr %.anon19, align 8
+  %addnuw26 = add nuw i64 %23, 1
+  store i64 %addnuw26, ptr %.anon19, align 8
+  br label %loop.cond20
+
+loop.exit27:                                      ; preds = %loop.cond20
+  store i64 0, ptr %.anon28, align 8
+  br label %loop.cond29
+
+loop.cond29:                                      ; preds = %loop.body31, %loop.exit27
+  %24 = load i64, ptr %.anon28, align 8
+  %gt30 = icmp ugt i64 3, %24
+  br i1 %gt30, label %loop.body31, label %loop.exit37
+
+loop.body31:                                      ; preds = %loop.cond29
+  %25 = load i64, ptr %.anon28, align 8
+  %trunc = trunc i64 %25 to i8
+  store i8 %trunc, ptr %i32, align 1
+  %26 = load i64, ptr %.anon28, align 8
+  %ptroffset34 = getelementptr inbounds [4 x i8], ptr %foo, i64 %26
+  %27 = load float, ptr %ptroffset34, align 4
+  %fpfpext35 = fpext float %27 to double
+  store double %fpfpext35, ptr %a33, align 8
+  %28 = load i8, ptr %i32, align 1
+  %zext = zext i8 %28 to i32
+  %29 = load double, ptr %a33, align 8
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %zext, double %29)
+  %30 = load i64, ptr %.anon28, align 8
+  %addnuw36 = add nuw i64 %30, 1
+  store i64 %addnuw36, ptr %.anon28, align 8
+  br label %loop.cond29
+
+loop.exit37:                                      ; preds = %loop.cond29
+  store i64 0, ptr %.anon38, align 8
+  br label %loop.cond39
+
+loop.cond39:                                      ; preds = %loop.body41, %loop.exit37
+  %31 = load i64, ptr %.anon38, align 8
+  %gt40 = icmp ugt i64 3, %31
+  br i1 %gt40, label %loop.body41, label %loop.exit46
+
+loop.body41:                                      ; preds = %loop.cond39
+  %32 = load i64, ptr %.anon38, align 8
+  %ptroffset43 = getelementptr inbounds [4 x i8], ptr %foo, i64 %32
+  %33 = load float, ptr %ptroffset43, align 4
+  %fpfpext44 = fpext float %33 to double
+  store double %fpfpext44, ptr %a42, align 8
+  %34 = load double, ptr %a42, align 8
+  call void (ptr, ...) @printf(ptr @.str.5, double %34)
+  %35 = load i64, ptr %.anon38, align 8
+  %addnuw45 = add nuw i64 %35, 1
+  store i64 %addnuw45, ptr %.anon38, align 8
+  br label %loop.cond39
+
+loop.exit46:                                      ; preds = %loop.cond39
+  store i64 0, ptr %.anon47, align 8
+  br label %loop.cond48
+
+loop.cond48:                                      ; preds = %loop.body50, %loop.exit46
+  %36 = load i64, ptr %.anon47, align 8
+  %gt49 = icmp ugt i64 3, %36
+  br i1 %gt49, label %loop.body50, label %loop.exit54
+
+loop.body50:                                      ; preds = %loop.cond48
+  %37 = load <3 x float>, ptr %foo2, align 16
+  %38 = load i64, ptr %.anon47, align 8
+  %39 = extractelement <3 x float> %37, i64 %38
+  store float %39, ptr %a51, align 4
+  %40 = load float, ptr %a51, align 4
+  %fpfpext52 = fpext float %40 to double
+  call void (ptr, ...) @printf(ptr @.str.6, double %fpfpext52)
+  %41 = load i64, ptr %.anon47, align 8
+  %addnuw53 = add nuw i64 %41, 1
+  store i64 %addnuw53, ptr %.anon47, align 8
+  br label %loop.cond48
+
+loop.exit54:                                      ; preds = %loop.cond48
+  store i64 0, ptr %.anon55, align 8
+  br label %loop.cond56
+
+loop.cond56:                                      ; preds = %loop.body58, %loop.exit54
+  %42 = load i64, ptr %.anon55, align 8
+  %gt57 = icmp ugt i64 3, %42
+  br i1 %gt57, label %loop.body58, label %loop.exit64
+
+loop.body58:                                      ; preds = %loop.cond56
+  %43 = load i64, ptr %.anon55, align 8
+  %ptroffset60 = getelementptr inbounds [4 x i8], ptr %foo2, i64 %43
+  store ptr %ptroffset60, ptr %a59, align 8
+  %44 = load ptr, ptr %a59, align 8
+  %45 = load float, ptr %44, align 4
+  %fmul61 = fmul float %45, 2.000000e+00
+  store float %fmul61, ptr %44, align 4
+  %46 = load ptr, ptr %a59, align 8
+  %47 = load float, ptr %46, align 4
+  %fpfpext62 = fpext float %47 to double
+  call void (ptr, ...) @printf(ptr @.str.7, double %fpfpext62)
+  %48 = load i64, ptr %.anon55, align 8
+  %addnuw63 = add nuw i64 %48, 1
+  store i64 %addnuw63, ptr %.anon55, align 8
+  br label %loop.cond56
+
+loop.exit64:                                      ; preds = %loop.cond56
+  store i64 0, ptr %.anon65, align 8
+  br label %loop.cond66
+
+loop.cond66:                                      ; preds = %loop.body68, %loop.exit64
+  %49 = load i64, ptr %.anon65, align 8
+  %gt67 = icmp ugt i64 3, %49
+  br i1 %gt67, label %loop.body68, label %loop.exit73
+
+loop.body68:                                      ; preds = %loop.cond66
+  %50 = load i64, ptr %.anon65, align 8
+  store i64 %50, ptr %i69, align 8
+  %51 = load <3 x float>, ptr %foo2, align 16
+  %52 = load i64, ptr %.anon65, align 8
+  %53 = extractelement <3 x float> %51, i64 %52
+  store float %53, ptr %a70, align 4
+  %54 = load float, ptr %a70, align 4
+  %fpfpext71 = fpext float %54 to double
+  %55 = load i64, ptr %i69, align 8
+  call void (ptr, ...) @printf(ptr @.str.8, i64 %55, double %fpfpext71)
+  %56 = load i64, ptr %.anon65, align 8
+  %addnuw72 = add nuw i64 %56, 1
+  store i64 %addnuw72, ptr %.anon65, align 8
+  br label %loop.cond66
+
+loop.exit73:                                      ; preds = %loop.cond66
+  store i64 0, ptr %.anon74, align 8
+  br label %loop.cond75
+
+loop.cond75:                                      ; preds = %loop.body77, %loop.exit73
+  %57 = load i64, ptr %.anon74, align 8
+  %gt76 = icmp ugt i64 3, %57
+  br i1 %gt76, label %loop.body77, label %loop.exit84
+
+loop.body77:                                      ; preds = %loop.cond75
+  %58 = load i64, ptr %.anon74, align 8
+  %trunc79 = trunc i64 %58 to i8
+  store i8 %trunc79, ptr %i78, align 1
+  %59 = load <3 x float>, ptr %foo2, align 16
+  %60 = load i64, ptr %.anon74, align 8
+  %61 = extractelement <3 x float> %59, i64 %60
+  %fpfpext81 = fpext float %61 to double
+  store double %fpfpext81, ptr %a80, align 8
+  %62 = load i8, ptr %i78, align 1
+  %zext82 = zext i8 %62 to i32
+  %63 = load double, ptr %a80, align 8
+  call void (ptr, ...) @printf(ptr @.str.9, i32 %zext82, double %63)
+  %64 = load i64, ptr %.anon74, align 8
+  %addnuw83 = add nuw i64 %64, 1
+  store i64 %addnuw83, ptr %.anon74, align 8
+  br label %loop.cond75
+
+loop.exit84:                                      ; preds = %loop.cond75
+  store i64 0, ptr %.anon85, align 8
+  br label %loop.cond86
+
+loop.cond86:                                      ; preds = %loop.body88, %loop.exit84
+  %65 = load i64, ptr %.anon85, align 8
+  %gt87 = icmp ugt i64 3, %65
+  br i1 %gt87, label %loop.body88, label %loop.exit92
+
+loop.body88:                                      ; preds = %loop.cond86
+  %66 = load <3 x float>, ptr %foo2, align 16
+  %67 = load i64, ptr %.anon85, align 8
+  %68 = extractelement <3 x float> %66, i64 %67
+  %fpfpext90 = fpext float %68 to double
+  store double %fpfpext90, ptr %a89, align 8
+  %69 = load double, ptr %a89, align 8
+  call void (ptr, ...) @printf(ptr @.str.10, double %69)
+  %70 = load i64, ptr %.anon85, align 8
+  %addnuw91 = add nuw i64 %70, 1
+  store i64 %addnuw91, ptr %.anon85, align 8
+  br label %loop.cond86
+
+loop.exit92:                                      ; preds = %loop.cond86
+  ret void
+}
diff --git a/test/test_suite7/statements/foreach_custom.c3t b/test/test_suite7/statements/foreach_custom.c3t
new file mode 100644
index 000000000..f8c667c31
--- /dev/null
+++ b/test/test_suite7/statements/foreach_custom.c3t
@@ -0,0 +1,85 @@
+// #target: macos-x64
+
+module test;
+struct Foo
+{
+    int[] x;
+}
+
+macro int Foo.@operator_element_at(Foo* &foo, usz index) @operator([])
+{
+    return foo.x[index];
+}
+
+macro usz Foo.@operator_len(Foo* &foo) @operator(len)
+{
+    return foo.x.len;
+}
+
+fn void main()
+{
+    int[?] i = { 1, 3, 10 };
+    Foo x = { &i };
+    foreach FOO: (int f : x) {
+        printf("%d\n", f);
+        while (1)
+        {
+            break FOO;
+        }
+    }
+}
+
+extern fn int printf(char *fmt, ...);
+
+/* #expect: test.ll
+
+
+define void @test.main() #0 {
+entry:
+  %i = alloca [3 x i32], align 4
+  %x = alloca %Foo, align 8
+  %.anon = alloca i64, align 8
+  %f = alloca i32, align 4
+  %index = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %i, ptr align 4 @.__const, i32 12, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %i, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %1, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  %2 = load i64, ptr %ptradd, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %entry
+  %3 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %3, %2
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load i64, ptr %.anon, align 8
+  store i64 %4, ptr %index, align 8
+  %5 = load ptr, ptr %x, align 8
+  %6 = load i64, ptr %index, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %5, i64 %6
+  %7 = load i32, ptr %ptroffset, align 4
+  store i32 %7, ptr %f, align 4
+  %8 = load i32, ptr %f, align 4
+  %9 = call i32 (ptr, ...) @printf(ptr @.str, i32 %8)
+  br label %loop.body1
+
+loop.body1:                                       ; preds = %loop.body
+  br label %loop.exit
+
+loop.exit:                                        ; preds = %loop.body1, %loop.cond
+  ret void
+}
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/statements/foreach_custom_errors.c3 b/test/test_suite7/statements/foreach_custom_errors.c3
new file mode 100644
index 000000000..08c581ab9
--- /dev/null
+++ b/test/test_suite7/statements/foreach_custom_errors.c3
@@ -0,0 +1,15 @@
+fn void test1()
+{
+    int x;
+    foreach (a : x) { }; // #error: It's not possible to enumerate an expression of type 'int'
+}
+
+distinct Test1 = int;
+
+fn void test2()
+{
+    Test1 x;
+    foreach (a : x) { }; // #error: It's not possible to enumerate an expression of type 'Test1'
+}
+
+
diff --git a/test/test_suite7/statements/foreach_custom_macro.c3t b/test/test_suite7/statements/foreach_custom_macro.c3t
new file mode 100644
index 000000000..7fbdc6135
--- /dev/null
+++ b/test/test_suite7/statements/foreach_custom_macro.c3t
@@ -0,0 +1,91 @@
+// #target: macos-x64
+module foo;
+struct Foo
+{
+    int[] x;
+}
+
+macro int Foo.@operator_element_at(Foo* &foo, usz index) @operator([])
+{
+    return foo.x[index];
+}
+
+macro usz Foo.@operator_len(Foo* &foo) @operator(len)
+{
+    return foo.x.len;
+}
+
+fn void main()
+{
+    int[?] i = { 1, 3, 10 };
+    Foo x = { &i };
+    foreach FOO: (int f : x) {
+        printf("%d\n", f);
+        while (1)
+        {
+            break FOO;
+        }
+    }
+}
+
+extern fn int printf(char *fmt, ...);
+
+/* #expect: foo.ll
+
+%Foo = type { %"int[]" }
+%"int[]" = type { ptr, i64 }
+
+@"$ct.foo.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant [3 x i32] [i32 1, i32 3, i32 10], align 4
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %i = alloca [3 x i32], align 4
+  %x = alloca %Foo, align 8
+  %.anon = alloca i64, align 8
+  %f = alloca i32, align 4
+  %index = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %i, ptr align 4 @.__const, i32 12, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %i, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %1, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  %2 = load i64, ptr %ptradd, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %entry
+  %3 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %3, %2
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load i64, ptr %.anon, align 8
+  store i64 %4, ptr %index, align 8
+  %5 = load ptr, ptr %x, align 8
+  %6 = load i64, ptr %index, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %5, i64 %6
+  %7 = load i32, ptr %ptroffset, align 4
+  store i32 %7, ptr %f, align 4
+  %8 = load i32, ptr %f, align 4
+  %9 = call i32 (ptr, ...) @printf(ptr @.str, i32 %8)
+  br label %loop.body1
+
+loop.body1:                                       ; preds = %loop.body
+  br label %loop.exit
+
+loop.exit:                                        ; preds = %loop.body1, %loop.cond
+  ret void
+}
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @foo.main()
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/foreach_distinct_iterable.c3t b/test/test_suite7/statements/foreach_distinct_iterable.c3t
new file mode 100644
index 000000000..c69667fdb
--- /dev/null
+++ b/test/test_suite7/statements/foreach_distinct_iterable.c3t
@@ -0,0 +1,61 @@
+// #target: macos-x64
+module test;
+import std;
+distinct TypeA = char[];
+
+fn char TypeA.get(self, usz i) @operator([]) {
+	return ((char[])self)[i];
+}
+
+fn usz TypeA.len(self) @operator(len)
+{
+	return self.len;
+}
+
+fn int main() {
+	TypeA x = "AAAAA";
+	foreach(y : x)
+	{
+		int z = y;
+	}
+	return 0;
+}
+
+/* #expect: test.ll
+
+define i32 @main() #0 {
+entry:
+  %x = alloca %"char[]", align 8
+  %.anon = alloca i64, align 8
+  %y = alloca i8, align 1
+  %z = alloca i32, align 4
+  store %"char[]" { ptr @.str, i64 5 }, ptr %x, align 8
+  %lo = load ptr, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  %hi = load i64, ptr %ptradd, align 8
+  %0 = call i64 @test.TypeA.len(ptr %lo, i64 %hi)
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %1, %0
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %lo1 = load ptr, ptr %x, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i64 8
+  %hi3 = load i64, ptr %ptradd2, align 8
+  %2 = load i64, ptr %.anon, align 8
+  %3 = call i8 @test.TypeA.get(ptr %lo1, i64 %hi3, i64 %2)
+  store i8 %3, ptr %y, align 1
+  %4 = load i8, ptr %y, align 1
+  %zext = zext i8 %4 to i32
+  store i32 %zext, ptr %z, align 4
+  %5 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %5, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret i32 0
\ No newline at end of file
diff --git a/test/test_suite7/statements/foreach_distinct_pointer_1506.c3 b/test/test_suite7/statements/foreach_distinct_pointer_1506.c3
new file mode 100644
index 000000000..5e6c2d262
--- /dev/null
+++ b/test/test_suite7/statements/foreach_distinct_pointer_1506.c3
@@ -0,0 +1,14 @@
+distinct Type = char*;
+fn usz Type.len(str)
+{
+	return 0;
+}
+fn int main(String[] args)
+{
+  Type x = "AAAAA";  // Or ZString
+  foreach(y : x) // #error: It's not possible to enumerate an expression
+  {
+
+  }
+  return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/foreach_errors.c3 b/test/test_suite7/statements/foreach_errors.c3
new file mode 100644
index 000000000..64531102b
--- /dev/null
+++ b/test/test_suite7/statements/foreach_errors.c3
@@ -0,0 +1,54 @@
+module test;
+
+extern fn void foo();
+int[3] z;
+
+fn void test1()
+{
+    int x;
+    foreach (a : x) // #error: It's not possible to enumerate an expression of type 'int'.
+    {
+        foo();
+    }
+}
+
+fn void test2()
+{
+    foreach (a : z) foo();
+    foreach (i, a : z) foo();
+    foreach (double i, a : z); // #error: Index must be an integer type, 'double' is not valid.
+}
+
+fn void test3()
+{
+    foreach (&a : z) foo();
+    foreach (&i, &a : z) foo(); // #error: The index cannot be held by reference, did you accidentally add a '&'?
+}
+
+fn void test4()
+{
+    foreach (&a : z) foo();
+    foreach (&i, a : z) foo(); // #error: The index cannot be held by reference, did you accidentally add a '&'?
+}
+
+fn void test5()
+{
+    foreach (int! y : z) foo();
+}
+
+fn void test6()
+{
+    foreach (int! i, y : z) foo(); // #error: The index may not be an optional.
+}
+
+fn void test7()
+{
+    foreach (int a : { 1, 2, 3 }) foo();
+    foreach (a : { 1, 2, 3 }) foo(); // #error: Add an explicit type to the variable
+}
+
+fn void test8()
+{
+    foreach (int a : { z }) foo(); // #error: 'int[3]' to 'int'
+}
+
diff --git a/test/test_suite7/statements/foreach_more_implementations.c3t b/test/test_suite7/statements/foreach_more_implementations.c3t
new file mode 100644
index 000000000..88959c480
--- /dev/null
+++ b/test/test_suite7/statements/foreach_more_implementations.c3t
@@ -0,0 +1,126 @@
+// #target: macos-x64
+module test;
+
+import std::io;
+struct Vector
+{
+    usz size;
+    int* elements;
+}
+
+macro int Vector.get(Vector* vector, usz element) @operator([])
+{
+    return vector.elements[element];
+}
+
+macro int* Vector.get_ref(Vector* vector, usz element) @operator(&[])
+{
+    return &vector.elements[element];
+}
+
+macro usz Vector.size(Vector vector) @operator(len) {
+    return vector.size;
+}
+
+fn void main()
+{
+	int[2] x = { 1, 2 };
+    Vector v = { 2, &x };
+
+    foreach (int* &ref : v)
+    {
+        std::io::printf("%d\n", *ref);
+        *ref += 2;
+    }
+    foreach (int i : v)
+    {
+        std::io::printf("%d\n", i);
+    }
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %x = alloca [2 x i32], align 4
+  %v = alloca %Vector, align 8
+  %vector = alloca %Vector, align 8
+  %.anon = alloca i64, align 8
+  %ref = alloca ptr, align 8
+  %element = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %vector2 = alloca %Vector, align 8
+  %.anon3 = alloca i64, align 8
+  %i = alloca i32, align 4
+  %element7 = alloca i64, align 8
+  %varargslots10 = alloca [1 x %any], align 16
+  %retparam11 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 8, i1 false)
+  store i64 2, ptr %v, align 8
+  %ptradd = getelementptr inbounds i8, ptr %v, i64 8
+  store ptr %x, ptr %ptradd, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %vector, ptr align 8 %v, i32 16, i1 false)
+  %0 = load i64, ptr %vector, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %1 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %1, %0
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load i64, ptr %.anon, align 8
+  store i64 %2, ptr %element, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %v, i64 8
+  %3 = load ptr, ptr %ptradd1, align 8
+  %4 = load i64, ptr %element, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %3, i64 %4
+  store ptr %ptroffset, ptr %ref, align 8
+  %5 = load ptr, ptr %ref, align 8
+  %6 = insertvalue %any undef, ptr %5, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %7, ptr %varargslots, align 16
+  %8 = call i64 @std.io.printf(ptr %retparam, ptr @.str, i64 3, ptr %varargslots, i64 1)
+  %9 = load ptr, ptr %ref, align 8
+  %10 = load i32, ptr %9, align 4
+  %add = add i32 %10, 2
+  store i32 %add, ptr %9, align 4
+  %11 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %11, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %vector2, ptr align 8 %v, i32 16, i1 false)
+  %12 = load i64, ptr %vector2, align 8
+  store i64 0, ptr %.anon3, align 8
+  br label %loop.cond4
+
+loop.cond4:                                       ; preds = %loop.body6, %loop.exit
+  %13 = load i64, ptr %.anon3, align 8
+  %lt5 = icmp ult i64 %13, %12
+  br i1 %lt5, label %loop.body6, label %loop.exit13
+
+loop.body6:                                       ; preds = %loop.cond4
+  %14 = load i64, ptr %.anon3, align 8
+  store i64 %14, ptr %element7, align 8
+  %ptradd8 = getelementptr inbounds i8, ptr %v, i64 8
+  %15 = load ptr, ptr %ptradd8, align 8
+  %16 = load i64, ptr %element7, align 8
+  %ptroffset9 = getelementptr inbounds [4 x i8], ptr %15, i64 %16
+  %17 = load i32, ptr %ptroffset9, align 4
+  store i32 %17, ptr %i, align 4
+  %18 = insertvalue %any undef, ptr %i, 0
+  %19 = insertvalue %any %18, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %19, ptr %varargslots10, align 16
+  %20 = call i64 @std.io.printf(ptr %retparam11, ptr @.str.1, i64 3, ptr %varargslots10, i64 1)
+  %21 = load i64, ptr %.anon3, align 8
+  %addnuw12 = add nuw i64 %21, 1
+  store i64 %addnuw12, ptr %.anon3, align 8
+  br label %loop.cond4
+
+loop.exit13:                                      ; preds = %loop.cond4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/foreach_parse_error.c3 b/test/test_suite7/statements/foreach_parse_error.c3
new file mode 100644
index 000000000..4a761601a
--- /dev/null
+++ b/test/test_suite7/statements/foreach_parse_error.c3
@@ -0,0 +1,5 @@
+fn void test9()
+{
+    foreach (int a : { [2] = 1 }) foo();
+    foreach (int a : { [2] = 2, 1 }) foo(); // #error: Normal initialization cannot be mixed with designated initialization.
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/foreach_r_break.c3t b/test/test_suite7/statements/foreach_r_break.c3t
new file mode 100644
index 000000000..b76700d4e
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_break.c3t
@@ -0,0 +1,72 @@
+// #target: macos-x64
+module test;
+
+fn void test()
+{
+    int[3] x;
+    int g = 0;
+    foreach_r (z : x)
+    {
+        if (z > 0) break;
+        if (z == 1) continue;
+        g += z;
+    }
+}
+
+/* #expect: test.ll
+
+
+; Function Attrs:
+define void @test.test() #0 {
+entry:
+  %x = alloca [3 x i32], align 4
+  %g = alloca i32, align 4
+  %.anon = alloca i64, align 8
+  %z = alloca i32, align 4
+  store i32 0, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  store i32 0, ptr %g, align 4
+  store i64 3, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %if.exit4, %if.then3, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 %0, 0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  %subnuw = sub nuw i64 %1, 1
+  store i64 %subnuw, ptr %.anon, align 8
+  %2 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %x, i64 %2
+  %3 = load i32, ptr %ptroffset, align 4
+  store i32 %3, ptr %z, align 4
+  %4 = load i32, ptr %z, align 4
+  %gt2 = icmp sgt i32 %4, 0
+  br i1 %gt2, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  br label %loop.exit
+
+if.exit:                                          ; preds = %loop.body
+  %5 = load i32, ptr %z, align 4
+  %eq = icmp eq i32 %5, 1
+  br i1 %eq, label %if.then3, label %if.exit4
+
+if.then3:                                         ; preds = %if.exit
+  br label %loop.cond
+
+if.exit4:                                         ; preds = %if.exit
+  %6 = load i32, ptr %g, align 4
+  %7 = load i32, ptr %z, align 4
+  %add = add i32 %6, %7
+  store i32 %add, ptr %g, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %if.then, %loop.cond
+  ret void
+}
diff --git a/test/test_suite7/statements/foreach_r_common.c3t b/test/test_suite7/statements/foreach_r_common.c3t
new file mode 100644
index 000000000..32e301478
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_common.c3t
@@ -0,0 +1,359 @@
+// #target: macos-x64
+module test;
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    float[3] foo = { 2, 4.5, 8 };
+    float[<3>] foo2 = { 2, 4.5, 8 };
+    foreach_r (a : foo)
+    {
+        printf("Value: %f\n", a);
+    }
+    foreach_r (float* &a : foo)
+    {
+        *a *= 2;
+        printf("Value: %f\n", *a);
+    }
+    foreach_r (void* &a : foo)
+    {
+        printf("Value: %f\n", *((float*)(a)));
+    }
+    foreach_r (i, a : foo)
+    {
+        printf("Value[%d]: %f\n", i, a);
+    }
+    foreach_r (char i, double a : foo)
+    {
+        printf("Value2[%d]: %f\n", i, a);
+    }
+    foreach_r (double a : foo)
+    {
+        printf("Value3: %f\n", a);
+    }
+
+    foreach_r (a : foo2)
+    {
+        printf("Value: %f\n", a);
+    }
+    foreach_r (float* &a : foo2)
+    {
+        *a *= 2;
+        printf("Value: %f\n", *a);
+    }
+    foreach_r (i, a : foo2)
+    {
+        printf("Value[%d]: %f\n", i, a);
+    }
+    foreach_r (char i, double a : foo2)
+    {
+        printf("Value2[%d]: %f\n", i, a);
+    }
+    foreach_r (double a : foo2)
+    {
+        printf("Value3: %f\n", a);
+    }
+}
+
+/* #expect: test.ll
+
+entry:
+  %foo = alloca [3 x float], align 4
+  %foo2 = alloca <3 x float>, align 16
+  %.anon = alloca i64, align 8
+  %a = alloca float, align 4
+  %.anon1 = alloca i64, align 8
+  %a6 = alloca ptr, align 8
+  %.anon10 = alloca i64, align 8
+  %a15 = alloca ptr, align 8
+  %.anon19 = alloca i64, align 8
+  %i = alloca i64, align 8
+  %a24 = alloca float, align 4
+  %.anon28 = alloca i64, align 8
+  %i33 = alloca i8, align 1
+  %a34 = alloca double, align 8
+  %.anon38 = alloca i64, align 8
+  %a43 = alloca double, align 8
+  %.anon47 = alloca i64, align 8
+  %a52 = alloca float, align 4
+  %.anon55 = alloca i64, align 8
+  %a60 = alloca ptr, align 8
+  %.anon65 = alloca i64, align 8
+  %i70 = alloca i64, align 8
+  %a71 = alloca float, align 4
+  %.anon74 = alloca i64, align 8
+  %i79 = alloca i8, align 1
+  %a81 = alloca double, align 8
+  %.anon85 = alloca i64, align 8
+  %a90 = alloca double, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %foo, ptr align 4 @.__const, i32 12, i1 false)
+  store <3 x float> <float 2.000000e+00, float 4.500000e+00, float 8.000000e+00>, ptr %foo2, align 16
+  store i64 3, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %0 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 %0, 0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i64, ptr %.anon, align 8
+  %subnuw = sub nuw i64 %1, 1
+  store i64 %subnuw, ptr %.anon, align 8
+  %2 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %foo, i64 %2
+  %3 = load float, ptr %ptroffset, align 4
+  store float %3, ptr %a, align 4
+  %4 = load float, ptr %a, align 4
+  %fpfpext = fpext float %4 to double
+  call void (ptr, ...) @printf(ptr @.str, double %fpfpext)
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  store i64 3, ptr %.anon1, align 8
+  br label %loop.cond2
+
+loop.cond2:                                       ; preds = %loop.body4, %loop.exit
+  %5 = load i64, ptr %.anon1, align 8
+  %gt3 = icmp ugt i64 %5, 0
+  br i1 %gt3, label %loop.body4, label %loop.exit9
+
+loop.body4:                                       ; preds = %loop.cond2
+  %6 = load i64, ptr %.anon1, align 8
+  %subnuw5 = sub nuw i64 %6, 1
+  store i64 %subnuw5, ptr %.anon1, align 8
+  %7 = load i64, ptr %.anon1, align 8
+  %ptroffset7 = getelementptr inbounds [4 x i8], ptr %foo, i64 %7
+  store ptr %ptroffset7, ptr %a6, align 8
+  %8 = load ptr, ptr %a6, align 8
+  %9 = load float, ptr %8, align 4
+  %fmul = fmul float %9, 2.000000e+00
+  store float %fmul, ptr %8, align 4
+  %10 = load ptr, ptr %a6, align 8
+  %11 = load float, ptr %10, align 4
+  %fpfpext8 = fpext float %11 to double
+  call void (ptr, ...) @printf(ptr @.str.1, double %fpfpext8)
+  br label %loop.cond2
+
+loop.exit9:                                       ; preds = %loop.cond2
+  store i64 3, ptr %.anon10, align 8
+  br label %loop.cond11
+
+loop.cond11:                                      ; preds = %loop.body13, %loop.exit9
+  %12 = load i64, ptr %.anon10, align 8
+  %gt12 = icmp ugt i64 %12, 0
+  br i1 %gt12, label %loop.body13, label %loop.exit18
+
+loop.body13:                                      ; preds = %loop.cond11
+  %13 = load i64, ptr %.anon10, align 8
+  %subnuw14 = sub nuw i64 %13, 1
+  store i64 %subnuw14, ptr %.anon10, align 8
+  %14 = load i64, ptr %.anon10, align 8
+  %ptroffset16 = getelementptr inbounds [4 x i8], ptr %foo, i64 %14
+  store ptr %ptroffset16, ptr %a15, align 8
+  %15 = load ptr, ptr %a15, align 8
+  %16 = load float, ptr %15, align 4
+  %fpfpext17 = fpext float %16 to double
+  call void (ptr, ...) @printf(ptr @.str.2, double %fpfpext17)
+  br label %loop.cond11
+
+loop.exit18:                                      ; preds = %loop.cond11
+  store i64 3, ptr %.anon19, align 8
+  br label %loop.cond20
+
+loop.cond20:                                      ; preds = %loop.body22, %loop.exit18
+  %17 = load i64, ptr %.anon19, align 8
+  %gt21 = icmp ugt i64 %17, 0
+  br i1 %gt21, label %loop.body22, label %loop.exit27
+
+loop.body22:                                      ; preds = %loop.cond20
+  %18 = load i64, ptr %.anon19, align 8
+  %subnuw23 = sub nuw i64 %18, 1
+  store i64 %subnuw23, ptr %.anon19, align 8
+  %19 = load i64, ptr %.anon19, align 8
+  store i64 %19, ptr %i, align 8
+  %20 = load i64, ptr %.anon19, align 8
+  %ptroffset25 = getelementptr inbounds [4 x i8], ptr %foo, i64 %20
+  %21 = load float, ptr %ptroffset25, align 4
+  store float %21, ptr %a24, align 4
+  %22 = load float, ptr %a24, align 4
+  %fpfpext26 = fpext float %22 to double
+  %23 = load i64, ptr %i, align 8
+  call void (ptr, ...) @printf(ptr @.str.3, i64 %23, double %fpfpext26)
+  br label %loop.cond20
+
+loop.exit27:                                      ; preds = %loop.cond20
+  store i64 3, ptr %.anon28, align 8
+  br label %loop.cond29
+
+loop.cond29:                                      ; preds = %loop.body31, %loop.exit27
+  %24 = load i64, ptr %.anon28, align 8
+  %gt30 = icmp ugt i64 %24, 0
+  br i1 %gt30, label %loop.body31, label %loop.exit37
+
+loop.body31:                                      ; preds = %loop.cond29
+  %25 = load i64, ptr %.anon28, align 8
+  %subnuw32 = sub nuw i64 %25, 1
+  store i64 %subnuw32, ptr %.anon28, align 8
+  %26 = load i64, ptr %.anon28, align 8
+  %trunc = trunc i64 %26 to i8
+  store i8 %trunc, ptr %i33, align 1
+  %27 = load i64, ptr %.anon28, align 8
+  %ptroffset35 = getelementptr inbounds [4 x i8], ptr %foo, i64 %27
+  %28 = load float, ptr %ptroffset35, align 4
+  %fpfpext36 = fpext float %28 to double
+  store double %fpfpext36, ptr %a34, align 8
+  %29 = load i8, ptr %i33, align 1
+  %zext = zext i8 %29 to i32
+  %30 = load double, ptr %a34, align 8
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %zext, double %30)
+  br label %loop.cond29
+
+loop.exit37:                                      ; preds = %loop.cond29
+  store i64 3, ptr %.anon38, align 8
+  br label %loop.cond39
+
+loop.cond39:                                      ; preds = %loop.body41, %loop.exit37
+  %31 = load i64, ptr %.anon38, align 8
+  %gt40 = icmp ugt i64 %31, 0
+  br i1 %gt40, label %loop.body41, label %loop.exit46
+
+loop.body41:                                      ; preds = %loop.cond39
+  %32 = load i64, ptr %.anon38, align 8
+  %subnuw42 = sub nuw i64 %32, 1
+  store i64 %subnuw42, ptr %.anon38, align 8
+  %33 = load i64, ptr %.anon38, align 8
+  %ptroffset44 = getelementptr inbounds [4 x i8], ptr %foo, i64 %33
+  %34 = load float, ptr %ptroffset44, align 4
+  %fpfpext45 = fpext float %34 to double
+  store double %fpfpext45, ptr %a43, align 8
+  %35 = load double, ptr %a43, align 8
+  call void (ptr, ...) @printf(ptr @.str.5, double %35)
+  br label %loop.cond39
+
+loop.exit46:                                      ; preds = %loop.cond39
+  store i64 3, ptr %.anon47, align 8
+  br label %loop.cond48
+
+loop.cond48:                                      ; preds = %loop.body50, %loop.exit46
+  %36 = load i64, ptr %.anon47, align 8
+  %gt49 = icmp ugt i64 %36, 0
+  br i1 %gt49, label %loop.body50, label %loop.exit54
+
+loop.body50:                                      ; preds = %loop.cond48
+  %37 = load i64, ptr %.anon47, align 8
+  %subnuw51 = sub nuw i64 %37, 1
+  store i64 %subnuw51, ptr %.anon47, align 8
+  %38 = load <3 x float>, ptr %foo2, align 16
+  %39 = load i64, ptr %.anon47, align 8
+  %40 = extractelement <3 x float> %38, i64 %39
+  store float %40, ptr %a52, align 4
+  %41 = load float, ptr %a52, align 4
+  %fpfpext53 = fpext float %41 to double
+  call void (ptr, ...) @printf(ptr @.str.6, double %fpfpext53)
+  br label %loop.cond48
+
+loop.exit54:                                      ; preds = %loop.cond48
+  store i64 3, ptr %.anon55, align 8
+  br label %loop.cond56
+
+loop.cond56:                                      ; preds = %loop.body58, %loop.exit54
+  %42 = load i64, ptr %.anon55, align 8
+  %gt57 = icmp ugt i64 %42, 0
+  br i1 %gt57, label %loop.body58, label %loop.exit64
+
+loop.body58:                                      ; preds = %loop.cond56
+  %43 = load i64, ptr %.anon55, align 8
+  %subnuw59 = sub nuw i64 %43, 1
+  store i64 %subnuw59, ptr %.anon55, align 8
+  %44 = load i64, ptr %.anon55, align 8
+  %ptroffset61 = getelementptr inbounds [4 x i8], ptr %foo2, i64 %44
+  store ptr %ptroffset61, ptr %a60, align 8
+  %45 = load ptr, ptr %a60, align 8
+  %46 = load float, ptr %45, align 4
+  %fmul62 = fmul float %46, 2.000000e+00
+  store float %fmul62, ptr %45, align 4
+  %47 = load ptr, ptr %a60, align 8
+  %48 = load float, ptr %47, align 4
+  %fpfpext63 = fpext float %48 to double
+  call void (ptr, ...) @printf(ptr @.str.7, double %fpfpext63)
+  br label %loop.cond56
+
+loop.exit64:                                      ; preds = %loop.cond56
+  store i64 3, ptr %.anon65, align 8
+  br label %loop.cond66
+
+loop.cond66:                                      ; preds = %loop.body68, %loop.exit64
+  %49 = load i64, ptr %.anon65, align 8
+  %gt67 = icmp ugt i64 %49, 0
+  br i1 %gt67, label %loop.body68, label %loop.exit73
+
+loop.body68:                                      ; preds = %loop.cond66
+  %50 = load i64, ptr %.anon65, align 8
+  %subnuw69 = sub nuw i64 %50, 1
+  store i64 %subnuw69, ptr %.anon65, align 8
+  %51 = load i64, ptr %.anon65, align 8
+  store i64 %51, ptr %i70, align 8
+  %52 = load <3 x float>, ptr %foo2, align 16
+  %53 = load i64, ptr %.anon65, align 8
+  %54 = extractelement <3 x float> %52, i64 %53
+  store float %54, ptr %a71, align 4
+  %55 = load float, ptr %a71, align 4
+  %fpfpext72 = fpext float %55 to double
+  %56 = load i64, ptr %i70, align 8
+  call void (ptr, ...) @printf(ptr @.str.8, i64 %56, double %fpfpext72)
+  br label %loop.cond66
+
+loop.exit73:                                      ; preds = %loop.cond66
+  store i64 3, ptr %.anon74, align 8
+  br label %loop.cond75
+
+loop.cond75:                                      ; preds = %loop.body77, %loop.exit73
+  %57 = load i64, ptr %.anon74, align 8
+  %gt76 = icmp ugt i64 %57, 0
+  br i1 %gt76, label %loop.body77, label %loop.exit84
+
+loop.body77:                                      ; preds = %loop.cond75
+  %58 = load i64, ptr %.anon74, align 8
+  %subnuw78 = sub nuw i64 %58, 1
+  store i64 %subnuw78, ptr %.anon74, align 8
+  %59 = load i64, ptr %.anon74, align 8
+  %trunc80 = trunc i64 %59 to i8
+  store i8 %trunc80, ptr %i79, align 1
+  %60 = load <3 x float>, ptr %foo2, align 16
+  %61 = load i64, ptr %.anon74, align 8
+  %62 = extractelement <3 x float> %60, i64 %61
+  %fpfpext82 = fpext float %62 to double
+  store double %fpfpext82, ptr %a81, align 8
+  %63 = load i8, ptr %i79, align 1
+  %zext83 = zext i8 %63 to i32
+  %64 = load double, ptr %a81, align 8
+  call void (ptr, ...) @printf(ptr @.str.9, i32 %zext83, double %64)
+  br label %loop.cond75
+
+loop.exit84:                                      ; preds = %loop.cond75
+  store i64 3, ptr %.anon85, align 8
+  br label %loop.cond86
+
+loop.cond86:                                      ; preds = %loop.body88, %loop.exit84
+  %65 = load i64, ptr %.anon85, align 8
+  %gt87 = icmp ugt i64 %65, 0
+  br i1 %gt87, label %loop.body88, label %loop.exit92
+
+loop.body88:                                      ; preds = %loop.cond86
+  %66 = load i64, ptr %.anon85, align 8
+  %subnuw89 = sub nuw i64 %66, 1
+  store i64 %subnuw89, ptr %.anon85, align 8
+  %67 = load <3 x float>, ptr %foo2, align 16
+  %68 = load i64, ptr %.anon85, align 8
+  %69 = extractelement <3 x float> %67, i64 %68
+  %fpfpext91 = fpext float %69 to double
+  store double %fpfpext91, ptr %a90, align 8
+  %70 = load double, ptr %a90, align 8
+  call void (ptr, ...) @printf(ptr @.str.10, double %70)
+  br label %loop.cond86
+
+loop.exit92:                                      ; preds = %loop.cond86
+  ret void
+}
diff --git a/test/test_suite7/statements/foreach_r_custom.c3t b/test/test_suite7/statements/foreach_r_custom.c3t
new file mode 100644
index 000000000..1e632f19f
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_custom.c3t
@@ -0,0 +1,88 @@
+// #target: macos-x64
+
+module test;
+struct Foo
+{
+    int[] x;
+}
+
+macro int Foo.@operator_element_at(Foo* &foo, usz index) @operator([])
+{
+    return foo.x[index];
+}
+
+macro usz Foo.@operator_len(Foo* &foo) @operator(len)
+{
+    return foo.x.len;
+}
+
+fn void main()
+{
+    int[?] i = { 1, 3, 10 };
+    Foo x = { &i };
+    foreach_r FOO: (int f : x) {
+        printf("%d\n", f);
+        while (1)
+        {
+            break FOO;
+        }
+    }
+}
+
+extern fn int printf(char *fmt, ...);
+
+/* #expect: test.ll
+
+
+define void @test.main() #0 {
+entry:
+  %i = alloca [3 x i32], align 4
+  %x = alloca %Foo, align 8
+  %.anon = alloca i64, align 8
+  %f = alloca i32, align 4
+  %index = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %i, ptr align 4 @.__const, i32 12, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %i, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %1, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  %2 = load i64, ptr %ptradd, align 8
+  store i64 %2, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %entry
+  %3 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 %3, 0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load i64, ptr %.anon, align 8
+  %subnuw = sub nuw i64 %4, 1
+  store i64 %subnuw, ptr %.anon, align 8
+  %5 = load i64, ptr %.anon, align 8
+  store i64 %5, ptr %index, align 8
+  %6 = load ptr, ptr %x, align 8
+  %7 = load i64, ptr %index, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %6, i64 %7
+  %8 = load i32, ptr %ptroffset, align 4
+  store i32 %8, ptr %f, align 4
+  %9 = load i32, ptr %f, align 4
+  %10 = call i32 (ptr, ...) @printf(ptr @.str, i32 %9)
+  br label %loop.body1
+
+loop.body1:                                       ; preds = %loop.body
+  br label %loop.exit
+
+loop.exit:                                        ; preds = %loop.body1, %loop.cond
+  ret void
+}
+
+; Function Attrs:
+declare i32 @printf(ptr, ...) #0
+
+; Function Attrs:
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @test.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/statements/foreach_r_custom_errors.c3 b/test/test_suite7/statements/foreach_r_custom_errors.c3
new file mode 100644
index 000000000..1ef972b44
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_custom_errors.c3
@@ -0,0 +1,15 @@
+fn void test1()
+{
+    int x;
+    foreach_r (a : x) { }; // #error: It's not possible to enumerate an expression of type 'int'
+}
+
+distinct Test1 = int;
+
+fn void test2()
+{
+    Test1 x;
+    foreach_r (a : x) { }; // #error: It's not possible to enumerate an expression of type 'Test1'
+}
+
+
diff --git a/test/test_suite7/statements/foreach_r_custom_macro.c3t b/test/test_suite7/statements/foreach_r_custom_macro.c3t
new file mode 100644
index 000000000..4c1b76dae
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_custom_macro.c3t
@@ -0,0 +1,77 @@
+// #target: macos-x64
+module test;
+struct Foo
+{
+    int[] x;
+}
+
+macro int Foo.@operator_element_at(Foo* &foo, usz index) @operator([])
+{
+    return foo.x[index];
+}
+
+macro usz Foo.@operator_len(Foo* &foo) @operator(len)
+{
+    return foo.x.len;
+}
+
+fn void main()
+{
+    int[?] i = { 1, 3, 10 };
+    Foo x = { &i };
+    foreach_r FOO: (int f : x) {
+        printf("%d\n", f);
+        while (1)
+        {
+            break FOO;
+        }
+    }
+}
+
+extern fn int printf(char *fmt, ...);
+
+/* #expect: test.ll
+
+
+define void @test.main() #0 {
+entry:
+  %i = alloca [3 x i32], align 4
+  %x = alloca %Foo, align 8
+  %.anon = alloca i64, align 8
+  %f = alloca i32, align 4
+  %index = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %i, ptr align 4 @.__const, i32 12, i1 false)
+  %0 = insertvalue %"int[]" undef, ptr %i, 0
+  %1 = insertvalue %"int[]" %0, i64 3, 1
+  store %"int[]" %1, ptr %x, align 8
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 8
+  %2 = load i64, ptr %ptradd, align 8
+  store i64 %2, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %entry
+  %3 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 %3, 0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %4 = load i64, ptr %.anon, align 8
+  %subnuw = sub nuw i64 %4, 1
+  store i64 %subnuw, ptr %.anon, align 8
+  %5 = load i64, ptr %.anon, align 8
+  store i64 %5, ptr %index, align 8
+  %6 = load ptr, ptr %x, align 8
+  %7 = load i64, ptr %index, align 8
+  %ptroffset = getelementptr inbounds [4 x i8], ptr %6, i64 %7
+  %8 = load i32, ptr %ptroffset, align 4
+  store i32 %8, ptr %f, align 4
+  %9 = load i32, ptr %f, align 4
+  %10 = call i32 (ptr, ...) @printf(ptr @.str, i32 %9)
+  br label %loop.body1
+
+loop.body1:                                       ; preds = %loop.body
+  br label %loop.exit
+
+loop.exit:                                        ; preds = %loop.body1, %loop.cond
+  ret void
+}
diff --git a/test/test_suite7/statements/foreach_r_errors.c3 b/test/test_suite7/statements/foreach_r_errors.c3
new file mode 100644
index 000000000..df840104a
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_errors.c3
@@ -0,0 +1,54 @@
+module test;
+
+extern fn void foo();
+int[3] z;
+
+fn void test1()
+{
+    int x;
+    foreach_r (a : x) // #error: It's not possible to enumerate an expression of type 'int'.
+    {
+        foo();
+    }
+}
+
+fn void test2()
+{
+    foreach_r (a : z) foo();
+    foreach_r (i, a : z) foo();
+    foreach_r (double i, a : z); // #error: Index must be an integer type, 'double' is not valid.
+}
+
+fn void test3()
+{
+    foreach_r (&a : z) foo();
+    foreach_r (&i, &a : z) foo(); // #error: The index cannot be held by reference, did you accidentally add a '&'?
+}
+
+fn void test4()
+{
+    foreach_r (&a : z) foo();
+    foreach_r (&i, a : z) foo(); // #error: The index cannot be held by reference, did you accidentally add a '&'?
+}
+
+fn void test5()
+{
+    foreach_r (int! y : z) foo();
+}
+
+fn void test6()
+{
+    foreach_r (int! i, y : z) foo(); // #error: The index may not be an optional.
+}
+
+fn void test7()
+{
+    foreach_r (int a : { 1, 2, 3 }) foo();
+    foreach_r (a : { 1, 2, 3 }) foo(); // #error: Add an explicit type to the variable
+}
+
+fn void test8()
+{
+    foreach_r (int a : { z }) foo(); // #error: 'int[3]' to 'int'
+}
+
diff --git a/test/test_suite7/statements/foreach_r_parse_error.c3 b/test/test_suite7/statements/foreach_r_parse_error.c3
new file mode 100644
index 000000000..a7a00b965
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_parse_error.c3
@@ -0,0 +1,5 @@
+fn void test9()
+{
+    foreach_r (int a : { [2] = 1 }) foo();
+    foreach_r (int a : { [2] = 2, 1 }) foo(); // #error: Normal initialization cannot be mixed with designated initialization.
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/foreach_r_with_error.c3 b/test/test_suite7/statements/foreach_r_with_error.c3
new file mode 100644
index 000000000..dea64e90c
--- /dev/null
+++ b/test/test_suite7/statements/foreach_r_with_error.c3
@@ -0,0 +1,12 @@
+module test;
+
+fn void test()
+{
+    int[3]! x;
+    int g;
+    foreach_r (z : x) // #error: The foreach iterable expression may not be
+    {
+        g += z;
+        x[0] = 1;
+    }
+}
diff --git a/test/test_suite7/statements/foreach_with_error.c3 b/test/test_suite7/statements/foreach_with_error.c3
new file mode 100644
index 000000000..7edd14487
--- /dev/null
+++ b/test/test_suite7/statements/foreach_with_error.c3
@@ -0,0 +1,12 @@
+module test;
+
+fn void test()
+{
+    int[3]! x;
+    int g;
+    foreach (z : x) // #error: The foreach iterable expression
+    {
+        g += z;
+        x[0] = 1;
+    }
+}
diff --git a/test/test_suite7/statements/foreach_wrong_index.c3 b/test/test_suite7/statements/foreach_wrong_index.c3
new file mode 100644
index 000000000..67f1580b3
--- /dev/null
+++ b/test/test_suite7/statements/foreach_wrong_index.c3
@@ -0,0 +1,27 @@
+import std::io;
+
+struct Foo
+{
+    int[3] elements;
+}
+
+fn int Foo.at(Foo *vector, float index) @operator([])
+{
+    return 1;
+}
+
+fn int Foo.len(Foo *vector) @operator(len)
+{
+    return 3;
+}
+
+fn void main()
+{
+
+    Foo f;
+    io::printfn("%s", f[12.2]);
+    foreach (int i, value : f) // #error: Only integer
+    {
+        io::printfn("v[%s] = %s", i, value);
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/if_decl.c3 b/test/test_suite7/statements/if_decl.c3
new file mode 100644
index 000000000..ad245ec61
--- /dev/null
+++ b/test/test_suite7/statements/if_decl.c3
@@ -0,0 +1,5 @@
+fn int main()
+{
+    if (int a) {}     // #error: Expected a declaration with initializer
+    return 0;
+}
diff --git a/test/test_suite7/statements/if_only_throw.c3t b/test/test_suite7/statements/if_only_throw.c3t
new file mode 100644
index 000000000..de4517409
--- /dev/null
+++ b/test/test_suite7/statements/if_only_throw.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module foo;
+import std::io;
+
+fault Foo { ABC }
+fn void! test()
+{
+	if ((Foo.ABC?!))
+	{
+	}
+	else
+	{
+	}
+}
+fn void main()
+{
+	(void)test();
+}
+
+/* #expect: foo.ll
+
+define i64 @foo.test() #0 {
+entry:
+  %error_var = alloca i64, align 8
+  store i64 ptrtoint (ptr @"foo.Foo$ABC" to i64), ptr %error_var, align 8
+  br label %guard_block
+guard_block:                                      ; preds = %entry
+  %0 = load i64, ptr %error_var, align 8
+  ret i64 %0
+}
diff --git a/test/test_suite7/statements/if_single.c3 b/test/test_suite7/statements/if_single.c3
new file mode 100644
index 000000000..94ae517ca
--- /dev/null
+++ b/test/test_suite7/statements/if_single.c3
@@ -0,0 +1,29 @@
+fn void test()
+{
+    int x = 0;
+    if (x < 0) x++;
+    if (x <
+       0) x++;
+    if (x < 0
+       && x < 0) x++;
+
+
+    if (x < 0) x++;         // #error: if-statements with an 'else' must use '{ }' even around a single statement.
+    else { x++; };
+
+    if (x < 0)
+    {
+        x++;
+    }
+    else x++;               // #error: An 'else' must use '{ }' even around a single statement.
+
+    if (x < 0)
+    {
+        x++;
+    }
+    else if (x > 0)
+    {
+        x++;
+    }
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/if_tests.c3t b/test/test_suite7/statements/if_tests.c3t
new file mode 100644
index 000000000..a4a2d99b1
--- /dev/null
+++ b/test/test_suite7/statements/if_tests.c3t
@@ -0,0 +1,71 @@
+module iftest;
+
+fn void test1(int x)
+{
+    if (x > 0)
+    {
+        defer x += 1;
+    }
+    else
+    {}
+}
+
+fn void test2(int x)
+{
+    if (x > 0)
+    {
+    }
+    else
+    {}
+}
+
+fn void test3(int x)
+{
+    if (x > 0)
+    {}
+    else { x += 1; }
+}
+
+/* #expect: iftest.ll
+
+define void @iftest.test1(i32 %0) #0 {
+entry:
+  %x = alloca i32, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %gt = icmp sgt i32 %1, 0
+  br i1 %gt, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %entry
+  %2 = load i32, ptr %x, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %x, align 4
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %entry
+  ret void
+}
+
+define void @iftest.test2(i32 %0) #0 {
+entry:
+  %gt = icmp sgt i32 %0, 0
+  ret void
+}
+
+define void @iftest.test3(i32 %0) #0 {
+entry:
+  %x = alloca i32, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  %gt = icmp sgt i32 %1, 0
+  br i1 %gt, label %if.exit, label %if.else
+
+if.else:                                          ; preds = %entry
+  %2 = load i32, ptr %x, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %x, align 4
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.else, %entry
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/if_while_do_error.c3 b/test/test_suite7/statements/if_while_do_error.c3
new file mode 100644
index 000000000..3658e1d8b
--- /dev/null
+++ b/test/test_suite7/statements/if_while_do_error.c3
@@ -0,0 +1,34 @@
+module test;
+
+fn void test1()
+{
+    bool! x = false;
+    if (x) // #error: optional, but was 'bool!
+    {
+        x = 100;
+    }
+}
+
+fn void test2()
+{
+    bool! x = false;
+    while (x) // #error: optional, but was 'bool!
+    {
+        x = false;
+    }
+}
+
+fn void test3()
+{
+    bool! x = false;
+    double y = 1;
+    do
+    {
+        y = y + 1;
+    } while (y);
+    do
+    {
+        x = !x;
+    }
+    while (x); // #error: 'bool!' cannot be implicitly converted to a regular boolean value
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/infinite_do_while.c3t b/test/test_suite7/statements/infinite_do_while.c3t
new file mode 100644
index 000000000..b980fe179
--- /dev/null
+++ b/test/test_suite7/statements/infinite_do_while.c3t
@@ -0,0 +1,40 @@
+// #target: macos-x64
+module test;
+int x;
+fn void test1()
+{
+	while (true) {
+		testx();
+	}
+}
+fn void test2()
+{
+	do {
+		testx();
+	} while (true);
+}
+fn void testx() {}
+
+fn void main()
+{}
+
+/* #expect: test.ll
+
+define void @test.test1() #0 {
+entry:
+  br label %loop.body
+
+loop.body:                                        ; preds = %loop.body, %entry
+  call void @test.testx()
+  br label %loop.body
+}
+
+define void @test.test2() #0 {
+entry:
+  br label %loop.body
+
+loop.body:                                        ; preds = %loop.body, %entry
+  call void @test.testx()
+  br label %loop.body
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/label_errors.c3 b/test/test_suite7/statements/label_errors.c3
new file mode 100644
index 000000000..792363085
--- /dev/null
+++ b/test/test_suite7/statements/label_errors.c3
@@ -0,0 +1,24 @@
+
+fn int main()
+{
+    do FOO:
+    {
+        while FOO: (1) // #error: would shadow a previous declaration
+        {
+            return 1;
+        }
+    };
+    return 0;
+}
+
+
+fn void test1()
+{
+    do FOO:
+    {
+        while (1)
+        {
+            break BAR; // #error: A labelled statement with the name 'BAR' can't be found in the current scope
+        }
+    };
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/labelled_continue_for.c3t b/test/test_suite7/statements/labelled_continue_for.c3t
new file mode 100644
index 000000000..c44a7ae9d
--- /dev/null
+++ b/test/test_suite7/statements/labelled_continue_for.c3t
@@ -0,0 +1,71 @@
+// #target: macos-x64
+fn void errored()
+{}
+
+fn void test() {}
+
+fn void testBreak()
+{
+    for FOO: (int i = 0; i < 10; i++)
+    {
+        for (int j = 0; j < 10; j++)
+        {
+            for BAR: (int k = 0; k < 10; k++)
+            {
+                test();
+                continue FOO;
+            }
+            errored();
+        }
+        errored();
+    }
+}
+
+/* #expect: labelled_continue_for.ll
+
+
+define void @labelled_continue_for.testBreak() #0 {
+entry:
+  %i = alloca i32, align 4
+  %j = alloca i32, align 4
+  %k = alloca i32, align 4
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+loop.cond:                                        ; preds = %loop.inc, %entry
+  %0 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %0, 10
+  br i1 %lt, label %loop.body, label %loop.exit9
+loop.body:                                        ; preds = %loop.cond
+  store i32 0, ptr %j, align 4
+  br label %loop.cond1
+loop.cond1:                                       ; preds = %loop.exit, %loop.body
+  %1 = load i32, ptr %j, align 4
+  %lt2 = icmp slt i32 %1, 10
+  br i1 %lt2, label %loop.body3, label %loop.exit7
+loop.body3:                                       ; preds = %loop.cond1
+  store i32 0, ptr %k, align 4
+  br label %loop.cond4
+loop.cond4:                                       ; preds = %loop.body3
+  %2 = load i32, ptr %k, align 4
+  %lt5 = icmp slt i32 %2, 10
+  br i1 %lt5, label %loop.body6, label %loop.exit
+loop.body6:                                       ; preds = %loop.cond4
+  call void @labelled_continue_for.test()
+  br label %loop.inc
+loop.exit:                                        ; preds = %loop.cond4
+  call void @labelled_continue_for.errored()
+  %3 = load i32, ptr %j, align 4
+  %add = add i32 %3, 1
+  store i32 %add, ptr %j, align 4
+  br label %loop.cond1
+loop.exit7:                                       ; preds = %loop.cond1
+  call void @labelled_continue_for.errored()
+  br label %loop.inc
+loop.inc:                                         ; preds = %loop.exit7, %loop.body6
+  %4 = load i32, ptr %i, align 4
+  %add8 = add i32 %4, 1
+  store i32 %add8, ptr %i, align 4
+  br label %loop.cond
+loop.exit9:                                       ; preds = %loop.cond
+  ret void
+}
diff --git a/test/test_suite7/statements/nextcase_const.c3t b/test/test_suite7/statements/nextcase_const.c3t
new file mode 100644
index 000000000..1a444efb3
--- /dev/null
+++ b/test/test_suite7/statements/nextcase_const.c3t
@@ -0,0 +1,52 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+	int a;
+	switch (a)
+	{
+		case a++:
+			nextcase 0;
+		case 10:
+			nextcase a + 1;
+		default:
+			a--;
+    }
+}
+
+/* #expect: test.ll
+
+entry:
+  %a = alloca i32, align 4
+  %switch = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  %0 = load i32, ptr %a, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+switch.entry:                                     ; preds = %switch.case2, %switch.case, %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = load i32, ptr %a, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %a, align 4
+  %eq = icmp eq i32 %2, %1
+  br i1 %eq, label %switch.case, label %next_if
+switch.case:                                      ; preds = %switch.entry
+  store i32 0, ptr %switch, align 4
+  br label %switch.entry
+next_if:                                          ; preds = %switch.entry
+  %eq1 = icmp eq i32 10, %1
+  br i1 %eq1, label %switch.case2, label %next_if4
+switch.case2:                                     ; preds = %next_if
+  %3 = load i32, ptr %a, align 4
+  %add3 = add i32 %3, 1
+  store i32 %add3, ptr %switch, align 4
+  br label %switch.entry
+next_if4:                                         ; preds = %next_if
+  br label %switch.default
+switch.default:                                   ; preds = %next_if4
+  %4 = load i32, ptr %a, align 4
+  %sub = sub i32 %4, 1
+  store i32 %sub, ptr %a, align 4
+  br label %switch.exit
+switch.exit:                                      ; preds = %switch.default
diff --git a/test/test_suite7/statements/nextcase_default.c3t b/test/test_suite7/statements/nextcase_default.c3t
new file mode 100644
index 000000000..ada26864e
--- /dev/null
+++ b/test/test_suite7/statements/nextcase_default.c3t
@@ -0,0 +1,121 @@
+// #target: macos-x64
+module test;
+
+fn void main()
+{
+	int a = 0;
+	int b = 0;
+	switch (a)
+	{
+		case 0:
+		case 1:
+			b += 1;
+			nextcase default;
+		case 2:
+			b *= 2;
+		default:
+			b *= 3;
+	}
+	switch FOO: (a)
+    {
+    	case 0:
+    	case 1:
+    	    b -= 1;
+    		switch (a)
+    		{
+    		    case 0:
+    		        b /= 2;
+    		        nextcase FOO: default;
+    		    default:
+    		        b /= 3;
+    		}
+    		nextcase;
+    	case 2:
+    	    b *= 2;
+		default:
+			b *= 10;
+    }
+}
+
+/* #expect: test.ll
+
+entry:
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %switch = alloca i32, align 4
+  %switch3 = alloca i32, align 4
+  %switch6 = alloca i32, align 4
+  store i32 0, ptr %a, align 4
+  store i32 0, ptr %b, align 4
+  %0 = load i32, ptr %a, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  switch i32 %1, label %switch.default [
+    i32 0, label %switch.case
+    i32 1, label %switch.case
+    i32 2, label %switch.case1
+  ]
+switch.case:                                      ; preds = %switch.entry, %switch.entry
+  %2 = load i32, ptr %b, align 4
+  %add = add i32 %2, 1
+  store i32 %add, ptr %b, align 4
+  br label %switch.default
+switch.case1:                                     ; preds = %switch.entry
+  %3 = load i32, ptr %b, align 4
+  %mul = mul i32 %3, 2
+  store i32 %mul, ptr %b, align 4
+  br label %switch.exit
+switch.default:                                   ; preds = %switch.case, %switch.entry
+  %4 = load i32, ptr %b, align 4
+  %mul2 = mul i32 %4, 3
+  store i32 %mul2, ptr %b, align 4
+  br label %switch.exit
+switch.exit:                                      ; preds = %switch.default, %switch.case1
+  %5 = load i32, ptr %a, align 4
+  store i32 %5, ptr %switch3, align 4
+  br label %switch.entry4
+switch.entry4:                                    ; preds = %switch.exit
+  %6 = load i32, ptr %switch3, align 4
+  switch i32 %6, label %switch.default14 [
+    i32 0, label %switch.case5
+    i32 1, label %switch.case5
+    i32 2, label %switch.case12
+  ]
+switch.case5:                                     ; preds = %switch.entry4, %switch.entry4
+  %7 = load i32, ptr %b, align 4
+  %sub = sub i32 %7, 1
+  store i32 %sub, ptr %b, align 4
+  %8 = load i32, ptr %a, align 4
+  store i32 %8, ptr %switch6, align 4
+  br label %switch.entry7
+switch.entry7:                                    ; preds = %switch.case5
+  %9 = load i32, ptr %switch6, align 4
+  switch i32 %9, label %switch.default9 [
+    i32 0, label %switch.case8
+  ]
+switch.case8:                                     ; preds = %switch.entry7
+  %10 = load i32, ptr %b, align 4
+  %sdiv = sdiv i32 %10, 2
+  store i32 %sdiv, ptr %b, align 4
+  br label %switch.default14
+switch.default9:                                  ; preds = %switch.entry7
+  %11 = load i32, ptr %b, align 4
+  %sdiv10 = sdiv i32 %11, 3
+  store i32 %sdiv10, ptr %b, align 4
+  br label %switch.exit11
+switch.exit11:                                    ; preds = %switch.default9
+  br label %switch.case12
+switch.case12:                                    ; preds = %switch.entry4, %switch.exit11
+  %12 = load i32, ptr %b, align 4
+  %mul13 = mul i32 %12, 2
+  store i32 %mul13, ptr %b, align 4
+  br label %switch.exit16
+switch.default14:                                 ; preds = %switch.case8, %switch.entry4
+  %13 = load i32, ptr %b, align 4
+  %mul15 = mul i32 %13, 10
+  store i32 %mul15, ptr %b, align 4
+  br label %switch.exit16
+switch.exit16:                                    ; preds = %switch.default14, %switch.case12
+  ret void
\ No newline at end of file
diff --git a/test/test_suite7/statements/nextcase_missing_case.c3 b/test/test_suite7/statements/nextcase_missing_case.c3
new file mode 100644
index 000000000..1b2871b5b
--- /dev/null
+++ b/test/test_suite7/statements/nextcase_missing_case.c3
@@ -0,0 +1,14 @@
+module test;
+import std::io;
+
+fn void main()
+{
+	int a;
+	switch (a)
+	{
+		case 1:
+			nextcase 0; // #error: There is no 'case 0'
+		default:
+
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/nextcase_no_switch.c3 b/test/test_suite7/statements/nextcase_no_switch.c3
new file mode 100644
index 000000000..357fdb505
--- /dev/null
+++ b/test/test_suite7/statements/nextcase_no_switch.c3
@@ -0,0 +1,11 @@
+fn void main()
+{
+	int x = 0;
+	switch
+	{
+		case true:
+			nextcase false; // #error: cannot be used with
+		default:
+			break;
+	}
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/ranged_switch.c3t b/test/test_suite7/statements/ranged_switch.c3t
new file mode 100644
index 000000000..74ccfd861
--- /dev/null
+++ b/test/test_suite7/statements/ranged_switch.c3t
@@ -0,0 +1,229 @@
+// #target: macos-x64
+
+module foo;
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    for (int i = 0; i < 12; i++)
+    {
+        switch (i)
+        {
+            case 1 .. 3:
+                printf("1-3\n");
+            case 7 .. 277:
+                printf("7-277 %d\n", i);
+            case 4 .. 5:
+                printf("4-5 %d\n", i);
+            case 6:
+                printf("6 %d\n", i);
+            default:
+                printf("Something else: %d\n", i);
+                nextcase 5;
+        }
+    }
+    for (int i = 0; i < 12; i++)
+    {
+        switch (i)
+        {
+            case 1 .. 3:
+                printf("1-3\n");
+            case 4 .. 6:
+                printf("4-6 %d\n", i);
+            default:
+                printf("Something else: %d\n", i);
+                nextcase 5;
+        }
+    }
+    bool x = false;
+    switch (x)
+    {
+        case true:
+            printf("Was true!\n");
+        case false:
+            printf("Was false!\n");
+    }
+}
+
+/* #expect: foo.ll
+
+source_filename = "foo"
+target datalayout = "e-m:o-p270:32:32-p271:32
+target triple = "x86_64-apple
+
+@.str = private unnamed_addr constant [5 x i8] c"1-3\0A\00", align 1
+@.str.1 = private unnamed_addr constant [10 x i8] c"7-277 %d\0A\00", align 1
+@.str.2 = private unnamed_addr constant [8 x i8] c"4-5 %d\0A\00", align 1
+@.str.3 = private unnamed_addr constant [6 x i8] c"6 %d\0A\00", align 1
+@.str.4 = private unnamed_addr constant [20 x i8] c"Something else: %d\0A\00", align 1
+@.str.5 = private unnamed_addr constant [5 x i8] c"1-3\0A\00", align 1
+@.str.6 = private unnamed_addr constant [8 x i8] c"4-6 %d\0A\00", align 1
+@.str.7 = private unnamed_addr constant [20 x i8] c"Something else: %d\0A\00", align 1
+@.str.8 = private unnamed_addr constant [11 x i8] c"Was true!\0A\00", align 1
+@.str.9 = private unnamed_addr constant [12 x i8] c"Was false!\0A\00", align 1
+
+
+declare void @printf(ptr, ...) #0
+
+
+define void @foo.main() #0 {
+entry:
+  %i = alloca i32, align 4
+  %switch = alloca i32, align 4
+  %i11 = alloca i32, align 4
+  %switch15 = alloca i32, align 4
+  %x = alloca i8, align 1
+  %switch23 = alloca i8, align 1
+  store i32 0, ptr %i, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %switch.exit, %entry
+  %0 = load i32, ptr %i, align 4
+  %lt = icmp slt i32 %0, 12
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = load i32, ptr %i, align 4
+  store i32 %1, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %loop.body
+  %2 = load i32, ptr %switch, align 4
+  %le = icmp sle i32 1, %2
+  %ge = icmp sge i32 3, %2
+  %3 = and i1 %le, %ge
+  br i1 %3, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %switch.entry
+  call void (ptr, ...) @printf(ptr @.str)
+  br label %switch.exit
+
+next_if:                                          ; preds = %switch.entry
+  %le1 = icmp sle i32 7, %2
+  %ge2 = icmp sge i32 277, %2
+  %4 = and i1 %le1, %ge2
+  br i1 %4, label %switch.case3, label %next_if4
+
+switch.case3:                                     ; preds = %next_if
+  %5 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %5)
+  br label %switch.exit
+
+next_if4:                                         ; preds = %next_if
+  %le5 = icmp sle i32 4, %2
+  %ge6 = icmp sge i32 5, %2
+  %6 = and i1 %le5, %ge6
+  br i1 %6, label %switch.case7, label %next_if8
+
+switch.case7:                                     ; preds = %switch.default, %next_if4
+  %7 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.2, i32 %7)
+  br label %switch.exit
+
+next_if8:                                         ; preds = %next_if4
+  %eq = icmp eq i32 6, %2
+  br i1 %eq, label %switch.case9, label %next_if10
+
+switch.case9:                                     ; preds = %next_if8
+  %8 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.3, i32 %8)
+  br label %switch.exit
+
+next_if10:                                        ; preds = %next_if8
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if10
+  %9 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.4, i32 %9)
+  br label %switch.case7
+
+switch.exit:                                      ; preds = %switch.case9, %switch.case7, %switch.case3, %switch.case
+  %10 = load i32, ptr %i, align 4
+  %add = add i32 %10, 1
+  store i32 %add, ptr %i, align 4
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  store i32 0, ptr %i11, align 4
+  br label %loop.cond12
+
+loop.cond12:                                      ; preds = %switch.exit20, %loop.exit
+  %11 = load i32, ptr %i11, align 4
+  %lt13 = icmp slt i32 %11, 12
+  br i1 %lt13, label %loop.body14, label %loop.exit22
+
+loop.body14:                                      ; preds = %loop.cond12
+  %12 = load i32, ptr %i11, align 4
+  store i32 %12, ptr %switch15, align 4
+  br label %switch.entry16
+
+switch.entry16:                                   ; preds = %loop.body14
+  %13 = load i32, ptr %switch15, align 4
+  switch i32 %13, label %switch.default19 [
+    i32 1, label %switch.case17
+    i32 2, label %switch.case17
+    i32 3, label %switch.case17
+    i32 4, label %switch.case18
+    i32 5, label %switch.case18
+    i32 6, label %switch.case18
+  ]
+
+switch.case17:                                    ; preds = %switch.entry16, %switch.entry16, %switch.entry16
+  call void (ptr, ...) @printf(ptr @.str.5)
+  br label %switch.exit20
+
+switch.case18:                                    ; preds = %switch.default19, %switch.entry16, %switch.entry16, %switch.entry16
+  %14 = load i32, ptr %i11, align 4
+  call void (ptr, ...) @printf(ptr @.str.6, i32 %14)
+  br label %switch.exit20
+
+switch.default19:                                 ; preds = %switch.entry16
+  %15 = load i32, ptr %i11, align 4
+  call void (ptr, ...) @printf(ptr @.str.7, i32 %15)
+  br label %switch.case18
+
+switch.exit20:                                    ; preds = %switch.case18, %switch.case17
+  %16 = load i32, ptr %i11, align 4
+  %add21 = add i32 %16, 1
+  store i32 %add21, ptr %i11, align 4
+  br label %loop.cond12
+
+loop.exit22:                                      ; preds = %loop.cond12
+  store i8 0, ptr %x, align 1
+  %17 = load i8, ptr %x, align 1
+  store i8 %17, ptr %switch23, align 1
+  br label %switch.entry24
+
+switch.entry24:                                   ; preds = %loop.exit22
+  %18 = load i8, ptr %switch23, align 1
+  %19 = trunc i8 %18 to i1
+  %eq25 = icmp eq i1 true, %19
+  br i1 %eq25, label %switch.case26, label %next_if27
+
+switch.case26:                                    ; preds = %switch.entry24
+  call void (ptr, ...) @printf(ptr @.str.8)
+  br label %switch.exit31
+
+next_if27:                                        ; preds = %switch.entry24
+  %eq28 = icmp eq i1 false, %19
+  br i1 %eq28, label %switch.case29, label %next_if30
+
+switch.case29:                                    ; preds = %next_if27
+  call void (ptr, ...) @printf(ptr @.str.9)
+  br label %switch.exit31
+
+next_if30:                                        ; preds = %next_if27
+  br label %switch.exit31
+
+switch.exit31:                                    ; preds = %next_if30, %switch.case29, %switch.case26
+  ret void
+}
+
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @foo.main()
+  ret i32 0
+}
+
diff --git a/test/test_suite7/statements/return_stmt.c3 b/test/test_suite7/statements/return_stmt.c3
new file mode 100644
index 000000000..51da39f94
--- /dev/null
+++ b/test/test_suite7/statements/return_stmt.c3
@@ -0,0 +1,11 @@
+fn void testNoReturn()
+{
+    int i = 0;
+    i = -i;
+}
+
+fn int testReturn()
+{
+    int i = 0;
+    return i;
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/return_switch.c3t b/test/test_suite7/statements/return_switch.c3t
new file mode 100644
index 000000000..cced667f5
--- /dev/null
+++ b/test/test_suite7/statements/return_switch.c3t
@@ -0,0 +1,36 @@
+fn int testReturnSwitch()
+{
+    int i = 0;
+    switch (i)
+    {
+        case 0:
+        case 3:
+        case 1:
+            return 2;
+        case 2:
+            return 3;
+        default:
+            return 4;
+    }
+}
+
+/* #expect: return_switch.ll
+
+switch.entry:
+  %1 = load i32, ptr %switch
+  switch i32 %1, label %switch.default [
+    i32 0, label %switch.case
+    i32 3, label %switch.case
+    i32 1, label %switch.case
+    i32 2, label %switch.case1
+  ]
+
+switch.case:
+  ret i32 2
+
+switch.case1:
+  ret i32 3
+
+switch.default:
+  ret i32 4
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/return_with_other_at_end.c3 b/test/test_suite7/statements/return_with_other_at_end.c3
new file mode 100644
index 000000000..a18b63709
--- /dev/null
+++ b/test/test_suite7/statements/return_with_other_at_end.c3
@@ -0,0 +1,7 @@
+fn int testReturnWithOtherAtEnd()
+{
+    int i = 0;
+    return i;
+    if (i == 10) i++; // #warning: This code will
+    i = i + 2;
+}
diff --git a/test/test_suite7/statements/simple_do.c3t b/test/test_suite7/statements/simple_do.c3t
new file mode 100644
index 000000000..34fcae25a
--- /dev/null
+++ b/test/test_suite7/statements/simple_do.c3t
@@ -0,0 +1,112 @@
+// #target: macos-x64
+
+module foo;
+fn int test()
+{
+    static int x = 0;
+    return 1 + x++;
+}
+
+extern fn void printf(char*, ...);
+
+fn void main()
+{
+    int i = 10;
+    do
+    {
+        printf("%d\n", test());
+        if (i > 100) break;
+    } while (i-- > 0);
+    i = 1;
+    do
+    {
+        printf("%d, %d\n", i, test());
+        if (i % 3 == 0) break;
+    } while (i++ < 100);
+}
+
+/* #expect: foo.ll
+source_filename = "foo"
+target datalayout = "e-m:o-p270:32:32-p271:32
+target triple = "x86_64-apple
+
+@test.x = internal unnamed_addr global i32 0, align 4
+@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
+@.str.1 = private unnamed_addr constant [8 x i8] c"%d, %d\0A\00", align 1
+
+
+define i32 @foo.test() #0 {
+entry:
+  %0 = load i32, ptr @test.x, align 4
+  %add = add i32 %0, 1
+  store i32 %add, ptr @test.x, align 4
+  %add1 = add i32 1, %0
+  ret i32 %add1
+}
+
+
+declare void @printf(ptr, ...) #0
+
+
+define void @foo.main() #0 {
+entry:
+  %i = alloca i32, align 4
+  store i32 10, ptr %i, align 4
+  br label %loop.body
+
+loop.cond:                                        ; preds = %if.exit
+  %0 = load i32, ptr %i, align 4
+  %sub = sub i32 %0, 1
+  store i32 %sub, ptr %i, align 4
+  %gt = icmp sgt i32 %0, 0
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond, %entry
+  %1 = call i32 @foo.test()
+  call void (ptr, ...) @printf(ptr @.str, i32 %1)
+  %2 = load i32, ptr %i, align 4
+  %gt1 = icmp sgt i32 %2, 100
+  br i1 %gt1, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %loop.body
+  br label %loop.exit
+
+if.exit:                                          ; preds = %loop.body
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %if.then, %loop.cond
+  store i32 1, ptr %i, align 4
+  br label %loop.body3
+
+loop.cond2:                                       ; preds = %if.exit5
+  %3 = load i32, ptr %i, align 4
+  %add = add i32 %3, 1
+  store i32 %add, ptr %i, align 4
+  %lt = icmp slt i32 %3, 100
+  br i1 %lt, label %loop.body3, label %loop.exit6
+
+loop.body3:                                       ; preds = %loop.cond2, %loop.exit
+  %4 = call i32 @foo.test()
+  %5 = load i32, ptr %i, align 4
+  call void (ptr, ...) @printf(ptr @.str.1, i32 %5, i32 %4)
+  %6 = load i32, ptr %i, align 4
+  %smod = srem i32 %6, 3
+  %eq = icmp eq i32 %smod, 0
+  br i1 %eq, label %if.then4, label %if.exit5
+
+if.then4:                                         ; preds = %loop.body3
+  br label %loop.exit6
+
+if.exit5:                                         ; preds = %loop.body3
+  br label %loop.cond2
+
+loop.exit6:                                       ; preds = %if.then4, %loop.cond2
+  ret void
+}
+
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @foo.main()
+  ret i32 0
+}
diff --git a/test/test_suite7/statements/switch_error_fallthrough.c3 b/test/test_suite7/statements/switch_error_fallthrough.c3
new file mode 100644
index 000000000..991d1fd1d
--- /dev/null
+++ b/test/test_suite7/statements/switch_error_fallthrough.c3
@@ -0,0 +1,11 @@
+fn int main()
+{
+	int a;
+	switch (a)
+	{
+		case 1: // #error: Fallthrough cases
+			// ...
+		case 2:
+	}
+    return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/switch_error_range.c3 b/test/test_suite7/statements/switch_error_range.c3
new file mode 100644
index 000000000..fe39cce9d
--- /dev/null
+++ b/test/test_suite7/statements/switch_error_range.c3
@@ -0,0 +1,12 @@
+module foo;
+
+fn void test()
+{
+    int i;
+    switch (i)
+    {
+        case 15..13: // #error: The range is not valid because the first value (15) is greater than the second (13)
+            i++;
+            return;
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/switch_errors.c3 b/test/test_suite7/statements/switch_errors.c3
new file mode 100644
index 000000000..b9b2415f9
--- /dev/null
+++ b/test/test_suite7/statements/switch_errors.c3
@@ -0,0 +1,160 @@
+
+enum Foo
+{
+    A, B
+}
+
+enum Bar
+{
+    B
+}
+
+fn void test_other_enum()
+{
+    Foo f = A;
+    switch (f)
+    {
+        case Foo.A:
+            break;
+        case B:
+            break;
+        case Bar.B: // #error: to 'Foo'
+            break;
+    }
+}
+
+fn void test_check_nums()
+{
+    Foo f = A;
+    switch (f)
+    {
+        case Foo.from_ordinal(1):
+            break;
+        case Foo.from_ordinal(0):
+            break;
+    }
+}
+
+fn void test_scope(int i)
+{
+    switch (i)
+    {
+        case 1:
+            int a = 0;
+            break;
+        case 2:
+            test_scope(a + 1); // #error: 'a' could not be found, did you spell it right
+    }
+}
+
+fn void test_duplicate_case(int i)
+{
+    switch (i)
+    {
+        case 1:
+            break;
+        case 2:
+            break;
+        case 1:     // #error: same case value appears
+            break;
+    }
+}
+
+fn void test_duplicate_case2(Foo i)
+{
+    switch (i)
+    {
+        case A:
+            break;
+        case Foo.from_ordinal(1):
+            break;
+        case A:     // #error: same case value appears
+            break;
+    }
+}
+
+fn void test_duplicate_case3(Foo i)
+{
+    switch (i)
+    {
+        case A:
+            break;
+        case Foo.from_ordinal(0):     // #error: same case value appears
+            break;
+    }
+}
+
+enum Baz
+{
+    A, B, C, D
+}
+
+fn void test_missing_all_cases(Baz x)
+{
+    switch (x) // #error: not handled in the switch: A, B, C, ...
+    {
+    }
+}
+
+fn void test_missing_some_cases(Baz x)
+{
+    switch (x) // #error: not handled in the switch: B, C and D
+    {
+        case A:
+            break;
+    }
+}
+
+fn void test_missing_some_cases2(Baz x)
+{
+    switch (x) // #error: B and D
+    {
+        case C:
+        case A:
+            break;
+    }
+}
+
+fn void test_missing_some_cases3(Baz x)
+{
+    switch (x) // #error: Enum value D was not handled in the switch
+    {
+        case B:
+        case C:
+        case A:
+            break;
+    }
+}
+
+fn void test_missing_no_cases(Baz x)
+{
+    switch (x)
+    {
+        default:
+            break;
+    }
+}
+
+fault MathError
+{
+    DIVISION_BY_ZERO
+}
+
+// Rethrowing an error uses "!!" suffix
+fn void! testMayError()
+{
+}
+
+fn void main()
+{
+    // Handle the error
+    switch (catch err = testMayError()) // #error: Catch unwrapping is only allowed
+    {
+        case MathError.DIVISION_BY_ZERO:
+            libc::printf("Division by zero\n");
+            return;
+        default:
+            libc::printf("Unexpected error!");
+            return;
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/various_switching.c3t b/test/test_suite7/statements/various_switching.c3t
new file mode 100644
index 000000000..489991d3d
--- /dev/null
+++ b/test/test_suite7/statements/various_switching.c3t
@@ -0,0 +1,298 @@
+// #target: macos-x64
+module mymodule;
+
+extern fn void printf(char *, ...);
+
+fault HelloErr
+{
+    FOO,
+}
+fault ByeErr
+{
+    BAR,
+    BAZ
+}
+
+fn void test()
+{
+    int! x = ByeErr.BAR?;
+
+    typeid z = int.typeid;
+    if (catch err = x)
+    {
+        case HelloErr.FOO:
+            printf("Hello\n");
+        case ByeErr.BAR:
+            printf("Bye\n");
+        default:
+            printf("Noerrmatch\n");
+    }
+    switch (z)
+    {
+        case int:
+            printf("Was int!\n");
+        case bool:
+            nextcase double;
+        case double:
+            nextcase;
+        default:
+            printf("Wasn't int :(\n");
+    }
+    int a = 1;
+    int b = 2;
+    int zy = b + a;
+    switch (zy)
+    {
+        case a:
+            printf("Got a\n");
+        case b:
+            printf("Got b\n");
+        default:
+            printf("None of the above\n");
+    }
+    switch
+    {
+        case a < 0:
+            printf("A negative\n");
+        case a == 1:
+            printf("A is 1\n");
+        default:
+            printf("Unexpected a\n");
+    }
+}
+fn void main()
+{
+    test();
+    printf("Hello!\n");
+}
+
+/* #expect: mymodule.ll
+
+define void @mymodule.test() #0 {
+entry:
+  %x = alloca i32, align 4
+  %x.f = alloca i64, align 8
+  %z = alloca i64, align 8
+  %err = alloca i64, align 8
+  %switch = alloca i64, align 8
+  %switch4 = alloca i64, align 8
+  %a = alloca i32, align 4
+  %b = alloca i32, align 4
+  %zy = alloca i32, align 4
+  %switch27 = alloca i32, align 4
+  %switch37 = alloca i8, align 1
+  store i64 ptrtoint (ptr @"mymodule.ByeErr$BAR" to i64), ptr %x.f, align 8
+  store i64 ptrtoint (ptr @"$ct.int" to i64), ptr %z, align 8
+  br label %testblock
+
+testblock:                                        ; preds = %entry
+  %optval = load i64, ptr %x.f, align 8
+  %not_err = icmp eq i64 %optval, 0
+  %0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %0, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %testblock
+  store i64 %optval, ptr %err, align 8
+  br label %end_block
+
+after_check:                                      ; preds = %testblock
+  store i64 0, ptr %err, align 8
+  br label %end_block
+
+end_block:                                        ; preds = %after_check, %assign_optional
+  %1 = load i64, ptr %err, align 8
+  %neq = icmp ne i64 %1, 0
+  br i1 %neq, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %end_block
+  store i64 %1, ptr %switch, align 8
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %if.then
+  %2 = load i64, ptr %switch, align 8
+  %eq = icmp eq i64 ptrtoint (ptr @"mymodule.HelloErr$FOO" to i64), %2
+  br i1 %eq, label %switch.case, label %next_if
+
+switch.case:                                      ; preds = %switch.entry
+  call void (ptr, ...) @printf(ptr @.str)
+  br label %switch.exit
+
+next_if:                                          ; preds = %switch.entry
+  %eq1 = icmp eq i64 ptrtoint (ptr @"mymodule.ByeErr$BAR" to i64), %2
+  br i1 %eq1, label %switch.case2, label %next_if3
+
+switch.case2:                                     ; preds = %next_if
+  call void (ptr, ...) @printf(ptr @.str.3)
+  br label %switch.exit
+
+next_if3:                                         ; preds = %next_if
+  br label %switch.default
+
+switch.default:                                   ; preds = %next_if3
+  call void (ptr, ...) @printf(ptr @.str.4)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case2, %switch.case
+  br label %if.exit
+
+if.exit:                                          ; preds = %switch.exit, %end_block
+  %3 = load i64, ptr %z, align 8
+  store i64 %3, ptr %switch4, align 8
+  br label %switch.entry5
+
+switch.entry5:                                    ; preds = %if.exit
+  %4 = load i64, ptr %switch4, align 8
+  br label %check_subtype
+
+check_subtype:                                    ; preds = %parent_type_block, %switch.entry5
+  %5 = phi i64 [ %4, %switch.entry5 ], [ %typeid.parent, %parent_type_block ]
+  %eq6 = icmp eq i64 ptrtoint (ptr @"$ct.int" to i64), %5
+  br i1 %eq6, label %result_block, label %parent_type_block
+
+parent_type_block:                                ; preds = %check_subtype
+  %6 = inttoptr i64 %5 to ptr
+  %ptradd = getelementptr inbounds i8, ptr %6, i64 8
+  %typeid.parent = load i64, ptr %ptradd, align 8
+  %7 = icmp eq i64 %typeid.parent, 0
+  br i1 %7, label %result_block, label %check_subtype
+
+result_block:                                     ; preds = %parent_type_block, %check_subtype
+  %8 = phi i1 [ false, %parent_type_block ], [ true, %check_subtype ]
+  br i1 %8, label %switch.case7, label %next_if8
+
+switch.case7:                                     ; preds = %result_block
+  call void (ptr, ...) @printf(ptr @.str.5)
+  br label %switch.exit26
+
+next_if8:                                         ; preds = %result_block
+  br label %check_subtype9
+
+check_subtype9:                                   ; preds = %parent_type_block11, %next_if8
+  %9 = phi i64 [ %4, %next_if8 ], [ %typeid.parent13, %parent_type_block11 ]
+  %eq10 = icmp eq i64 ptrtoint (ptr @"$ct.bool" to i64), %9
+  br i1 %eq10, label %result_block14, label %parent_type_block11
+
+parent_type_block11:                              ; preds = %check_subtype9
+  %10 = inttoptr i64 %9 to ptr
+  %ptradd12 = getelementptr inbounds i8, ptr %10, i64 8
+  %typeid.parent13 = load i64, ptr %ptradd12, align 8
+  %11 = icmp eq i64 %typeid.parent13, 0
+  br i1 %11, label %result_block14, label %check_subtype9
+
+result_block14:                                   ; preds = %parent_type_block11, %check_subtype9
+  %12 = phi i1 [ false, %parent_type_block11 ], [ true, %check_subtype9 ]
+  br i1 %12, label %switch.case15, label %next_if16
+
+switch.case15:                                    ; preds = %result_block14
+  br label %switch.case23
+
+next_if16:                                        ; preds = %result_block14
+  br label %check_subtype17
+
+check_subtype17:                                  ; preds = %parent_type_block19, %next_if16
+  %13 = phi i64 [ %4, %next_if16 ], [ %typeid.parent21, %parent_type_block19 ]
+  %eq18 = icmp eq i64 ptrtoint (ptr @"$ct.double" to i64), %13
+  br i1 %eq18, label %result_block22, label %parent_type_block19
+
+parent_type_block19:                              ; preds = %check_subtype17
+  %14 = inttoptr i64 %13 to ptr
+  %ptradd20 = getelementptr inbounds i8, ptr %14, i64 8
+  %typeid.parent21 = load i64, ptr %ptradd20, align 8
+  %15 = icmp eq i64 %typeid.parent21, 0
+  br i1 %15, label %result_block22, label %check_subtype17
+
+result_block22:                                   ; preds = %parent_type_block19, %check_subtype17
+  %16 = phi i1 [ false, %parent_type_block19 ], [ true, %check_subtype17 ]
+  br i1 %16, label %switch.case23, label %next_if24
+
+switch.case23:                                    ; preds = %result_block22, %switch.case15
+  br label %switch.default25
+
+next_if24:                                        ; preds = %result_block22
+  br label %switch.default25
+
+switch.default25:                                 ; preds = %next_if24, %switch.case23
+  call void (ptr, ...) @printf(ptr @.str.6)
+  br label %switch.exit26
+
+switch.exit26:                                    ; preds = %switch.default25, %switch.case7
+  store i32 1, ptr %a, align 4
+  store i32 2, ptr %b, align 4
+  %17 = load i32, ptr %b, align 4
+  %18 = load i32, ptr %a, align 4
+  %add = add i32 %17, %18
+  store i32 %add, ptr %zy, align 4
+  %19 = load i32, ptr %zy, align 4
+  store i32 %19, ptr %switch27, align 4
+  br label %switch.entry28
+
+switch.entry28:                                   ; preds = %switch.exit26
+  %20 = load i32, ptr %switch27, align 4
+  %21 = load i32, ptr %a, align 4
+  %eq29 = icmp eq i32 %21, %20
+  br i1 %eq29, label %switch.case30, label %next_if31
+
+switch.case30:                                    ; preds = %switch.entry28
+  call void (ptr, ...) @printf(ptr @.str.7)
+  br label %switch.exit36
+
+next_if31:                                        ; preds = %switch.entry28
+  %22 = load i32, ptr %b, align 4
+  %eq32 = icmp eq i32 %22, %20
+  br i1 %eq32, label %switch.case33, label %next_if34
+
+switch.case33:                                    ; preds = %next_if31
+  call void (ptr, ...) @printf(ptr @.str.8)
+  br label %switch.exit36
+
+next_if34:                                        ; preds = %next_if31
+  br label %switch.default35
+
+switch.default35:                                 ; preds = %next_if34
+  call void (ptr, ...) @printf(ptr @.str.9)
+  br label %switch.exit36
+
+switch.exit36:                                    ; preds = %switch.default35, %switch.case33, %switch.case30
+  store i8 1, ptr %switch37, align 1
+  br label %switch.entry38
+
+switch.entry38:                                   ; preds = %switch.exit36
+  %23 = load i8, ptr %switch37, align 1
+  %24 = trunc i8 %23 to i1
+  %25 = load i32, ptr %a, align 4
+  %lt = icmp slt i32 %25, 0
+  %eq39 = icmp eq i1 %lt, %24
+  br i1 %eq39, label %switch.case40, label %next_if41
+
+switch.case40:                                    ; preds = %switch.entry38
+  call void (ptr, ...) @printf(ptr @.str.10)
+  br label %switch.exit47
+
+next_if41:                                        ; preds = %switch.entry38
+  %26 = load i32, ptr %a, align 4
+  %eq42 = icmp eq i32 %26, 1
+  %eq43 = icmp eq i1 %eq42, %24
+  br i1 %eq43, label %switch.case44, label %next_if45
+
+switch.case44:                                    ; preds = %next_if41
+  call void (ptr, ...) @printf(ptr @.str.11)
+  br label %switch.exit47
+
+next_if45:                                        ; preds = %next_if41
+  br label %switch.default46
+
+switch.default46:                                 ; preds = %next_if45
+  call void (ptr, ...) @printf(ptr @.str.12)
+  br label %switch.exit47
+
+switch.exit47:                                    ; preds = %switch.default46, %switch.case44, %switch.case40
+  ret void
+}
+
+; Function Attrs:
+define void @mymodule.main() #0 {
+entry:
+  call void @mymodule.test()
+  call void (ptr, ...) @printf(ptr @.str.13)
+  ret void
+}
diff --git a/test/test_suite7/statements/while_statement_placement.c3 b/test/test_suite7/statements/while_statement_placement.c3
new file mode 100644
index 000000000..66473b6eb
--- /dev/null
+++ b/test/test_suite7/statements/while_statement_placement.c3
@@ -0,0 +1,11 @@
+fn void test1()
+{
+    int a;
+    while (1) a++;
+    while (1)
+    {
+      a++;
+    }
+    while (1)
+    a++; // #error: must be placed on the same line
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/while_statement_placement2.c3 b/test/test_suite7/statements/while_statement_placement2.c3
new file mode 100644
index 000000000..c53d6086f
--- /dev/null
+++ b/test/test_suite7/statements/while_statement_placement2.c3
@@ -0,0 +1,34 @@
+import std;
+
+fn void loop_start() => io::printn("Loop Start");
+fn void loop_end() => io::printn("Loop End");
+fn void do_something() => io::printn("Do something");
+
+macro @thing(; @body())
+{
+  loop_start();
+  @body();
+  loop_end();
+}
+
+fn void strcpy(char *s1, char *s2) {
+  while (*s1++ = *s2++);
+}
+
+fn void main()
+{
+	while (true) @thing()
+	{
+        do_something();
+        break;
+	};
+	for (;;) @thing()
+    {
+        do_something();
+		break;
+	};
+	if (true) @thing()
+	{
+		do_something();
+	};
+}
\ No newline at end of file
diff --git a/test/test_suite7/statements/while_switch.c3t b/test/test_suite7/statements/while_switch.c3t
new file mode 100644
index 000000000..a3ebd15ac
--- /dev/null
+++ b/test/test_suite7/statements/while_switch.c3t
@@ -0,0 +1,90 @@
+// #target: macos-x64
+module test;
+
+extern fn int printf(char*, ...);
+extern fn int foo();
+
+fn int main()
+{
+  while (foo())
+  {
+     switch (foo())
+     {
+        case 0:
+        case 1:
+        case 2:
+        case 3:
+            printf("3");
+            nextcase;
+        case 4:
+            printf("4");
+            nextcase;
+        case 5:
+        case 6:
+        default:
+            break;
+     }
+   }
+   return 0;
+}
+
+/* #expect: test.ll
+
+source_filename = "test"
+target datalayout = "e-m:o-p270:32:32-p271:32
+target triple = "x86_64-apple
+
+@.str = private unnamed_addr constant [2 x i8] c"3\00", align 1
+@.str.1 = private unnamed_addr constant [2 x i8] c"4\00", align 1
+
+
+declare i32 @printf(ptr, ...) #0
+
+
+declare i32 @foo() #0
+
+
+define i32 @main() #0 {
+entry:
+  %switch = alloca i32, align 4
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %switch.exit, %entry
+  %0 = call i32 @foo()
+  %i2b = icmp ne i32 %0, 0
+  br i1 %i2b, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %1 = call i32 @foo()
+  store i32 %1, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %loop.body
+  %2 = load i32, ptr %switch, align 4
+  switch i32 %2, label %switch.default [
+    i32 0, label %switch.case
+    i32 1, label %switch.case
+    i32 2, label %switch.case
+    i32 3, label %switch.case
+    i32 4, label %switch.case1
+    i32 5, label %switch.default
+    i32 6, label %switch.default
+  ]
+
+switch.case:                                      ; preds = %switch.entry, %switch.entry, %switch.entry, %switch.entry
+  %3 = call i32 (ptr, ...) @printf(ptr @.str)
+  br label %switch.case1
+
+switch.case1:                                     ; preds = %switch.entry, %switch.case
+  %4 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  br label %switch.default
+
+switch.default:                                   ; preds = %switch.entry, %switch.entry, %switch.case1, %switch.entry
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret i32 0
+}
diff --git a/test/test_suite7/stdlib/ascii.c3 b/test/test_suite7/stdlib/ascii.c3
new file mode 100644
index 000000000..8390b1160
--- /dev/null
+++ b/test/test_suite7/stdlib/ascii.c3
@@ -0,0 +1,26 @@
+import std::io;
+import std::ascii;
+
+fn void main()
+{
+    for(char c = 0; c < 255; c++)
+    {
+        io::printfn("%c (%s) is...:", c, c);
+        io::printfn("lower: %s; upper: %s; digit: %s; bdigit: %s; odigit: %s; xdigit: %s; alpha: %s; print: %s; graph: %s; space: %s; alnum: %s; punct: %s; blank: %s; cntrl: %s;",
+                     c.is_lower(), c.is_upper(), c.is_digit(), c.is_bdigit(), c.is_odigit(), c.is_xdigit(), c.is_alpha(), c.is_print(),
+                     c.is_graph(), c.is_space(), c.is_alnum(), c.is_punct(), c.is_blank(), c.is_cntrl());
+    }
+
+    foreach(c : "0123456789abcdefghijklmnopqrstuvwxyz")
+    {
+        io::printfn("'%c'.to_upper(): %c", c, c.to_upper());
+    }
+    foreach(c : "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ")
+    {
+        io::printfn("'%c'.to_lower(): %c", c, c.to_lower());
+    }
+}
+
+
+
+
diff --git a/test/test_suite7/stdlib/map_linux.c3t b/test/test_suite7/stdlib/map_linux.c3t
new file mode 100644
index 000000000..ad6757706
--- /dev/null
+++ b/test/test_suite7/stdlib/map_linux.c3t
@@ -0,0 +1,290 @@
+// #target: linux-x64
+
+module test;
+import std::io;
+import std::collections::map;
+
+struct Foo (Printable) { int x; void* bar; }
+
+def IntFooMap = HashMap { int, Foo };
+def IntDoubleMap = HashMap { int, double };
+
+fn String Foo.to_new_string(Foo* foo, Allocator allocator = allocator::heap()) @dynamic
+{
+	DString s = dstring::new_with_capacity(128, allocator);
+	s.appendf("{%s, %p}", foo.x, foo.bar);
+	return s.str_view();
+}
+
+
+
+fn void main()
+{
+	IntFooMap map;
+	map.init(mem);
+	io::printfn("Map size: %d", map.count);
+	map.set(1, { 1, null });
+	io::printfn("Map size: %d", map.count);
+	map.set(1, { 2, null });
+	io::printfn("Map size: %d", map.count);
+	(void)io::printfn("Val: %d", map.get(1).x);
+	io::printfn("Has 1: %s", map.has_key(1));
+	io::printfn("Has 2: %s", map.has_key(2));
+	map.set(7, { 4, null });
+	io::printfn("Values: %s", map.values(mem));
+	IntDoubleMap map2;
+	map2.init(mem);
+	map2.set(4, 1.3);
+	io::printfn("Map find: %s", map2.has_value(1.3));
+	io::printfn("Map find: %s", map2.has_value(1.2));
+	map2.set(100, 3.4);
+	io::printfn("%s", map2.keys(mem));
+	io::printfn("%s", map2.values(mem));
+	@pool()
+	{
+		IntDoubleMap map3;
+		map3.init(mem);
+		map3.set(5, 3.2);
+		map3.set(7, 5.2);
+		io::printfn("%s", map3.keys(mem));
+	};
+}
+
+/* #expect: test.ll
+
+@"$sel.to_new_string" = linkonce_odr constant [14 x i8] c"to_new_string\00", comdat, align 1
+@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 1, ptr @.c3_dynamic_register, ptr null }]
+
+define { ptr, i64 } @test.Foo.to_new_string(ptr %0, i64 %1, ptr %2) #0 {
+entry:
+  %allocator = alloca %any, align 8
+  %s = alloca ptr, align 8
+  %varargslots = alloca [2 x %any], align 16
+  %retparam = alloca i64, align 8
+  %result = alloca %"char[]", align 8
+  store i64 %1, ptr %allocator, align 8
+  %ptradd = getelementptr inbounds i8, ptr %allocator, i64 8
+  store ptr %2, ptr %ptradd, align 8
+  %lo = load i64, ptr %allocator, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %allocator, i64 8
+  %hi = load ptr, ptr %ptradd1, align 8
+  %3 = call ptr @std.core.dstring.new_with_capacity(i64 128, i64 %lo, ptr %hi)
+  store ptr %3, ptr %s, align 8
+  %4 = insertvalue %any undef, ptr %0, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i64 8
+  %6 = insertvalue %any undef, ptr %ptradd2, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.p$void" to i64), 1
+  %ptradd3 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %7, ptr %ptradd3, align 16
+  %8 = call i64 @std.core.dstring.DString.appendf(ptr %retparam, ptr %s, ptr @.str.14, i64 8, ptr %varargslots, i64 2)
+  %9 = load ptr, ptr %s, align 8
+  %10 = call { ptr, i64 } @std.core.dstring.DString.str_view(ptr %9)
+  store { ptr, i64 } %10, ptr %result, align 8
+  %11 = load { ptr, i64 }, ptr %result, align 8
+  ret { ptr, i64 } %11
+}
+
+define void @test.main() #0 {
+entry:
+  %map = alloca %HashMap, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %literal = alloca %Foo, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %retparam6 = alloca i64, align 8
+  %literal7 = alloca %Foo, align 8
+  %varargslots11 = alloca [1 x %any], align 16
+  %retparam13 = alloca i64, align 8
+  %varargslots14 = alloca [1 x %any], align 16
+  %retparam15 = alloca %Foo, align 8
+  %retparam16 = alloca i64, align 8
+  %varargslots19 = alloca [1 x %any], align 16
+  %taddr = alloca i8, align 1
+  %retparam20 = alloca i64, align 8
+  %varargslots23 = alloca [1 x %any], align 16
+  %taddr24 = alloca i8, align 1
+  %retparam25 = alloca i64, align 8
+  %literal28 = alloca %Foo, align 8
+  %varargslots32 = alloca [1 x %any], align 16
+  %result = alloca %"Foo[]", align 8
+  %retparam35 = alloca i64, align 8
+  %map2 = alloca %HashMap.0, align 8
+  %varargslots40 = alloca [1 x %any], align 16
+  %taddr41 = alloca i8, align 1
+  %retparam42 = alloca i64, align 8
+  %varargslots45 = alloca [1 x %any], align 16
+  %taddr46 = alloca i8, align 1
+  %retparam47 = alloca i64, align 8
+  %varargslots50 = alloca [1 x %any], align 16
+  %result53 = alloca %"int[]", align 8
+  %retparam54 = alloca i64, align 8
+  %varargslots57 = alloca [1 x %any], align 16
+  %result60 = alloca %"double[]", align 8
+  %retparam61 = alloca i64, align 8
+  %current = alloca ptr, align 8
+  %mark = alloca i64, align 8
+  %map3 = alloca %HashMap.0, align 8
+  %varargslots67 = alloca [1 x %any], align 16
+  %result70 = alloca %"int[]", align 8
+  %retparam71 = alloca i64, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %map, i8 0, i64 48, i1 false)
+  %lo = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %0 = call ptr @"std_collections_map$int$test.Foo$.HashMap.init"(ptr %map
+  %ptradd = getelementptr inbounds i8, ptr %map, i64 32
+  %1 = insertvalue %any undef, ptr %ptradd, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 12, ptr %varargslots, i64 1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 16, i1 false)
+  %lo1 = load i32, ptr %literal, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i64 8
+  %hi3 = load ptr, ptr %ptradd2, align 8
+  %4 = call i8 @"std_collections_map$int$test.Foo$.HashMap.set"(ptr %map, i32 1, i32 %lo1, ptr %hi3)
+  %ptradd5 = getelementptr inbounds i8, ptr %map, i64 32
+  %5 = insertvalue %any undef, ptr %ptradd5, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %6, ptr %varargslots4, align 16
+  %7 = call i64 @std.io.printfn(ptr %retparam6, ptr @.str.1, i64 12, ptr %varargslots4, i64 1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal7, ptr align 8 @.__const.2, i32 16, i1 false)
+  %lo8 = load i32, ptr %literal7, align 8
+  %ptradd9 = getelementptr inbounds i8, ptr %literal7, i64 8
+  %hi10 = load ptr, ptr %ptradd9, align 8
+  %8 = call i8 @"std_collections_map$int$test.Foo$.HashMap.set"(ptr %map, i32 1, i32 %lo8, ptr %hi10)
+  %ptradd12 = getelementptr inbounds i8, ptr %map, i64 32
+  %9 = insertvalue %any undef, ptr %ptradd12, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %10, ptr %varargslots11, align 16
+  %11 = call i64 @std.io.printfn(ptr %retparam13, ptr @.str.3, i64 12, ptr %varargslots11, i64 1)
+  %12 = call i64 @"std_collections_map$int$test.Foo$.HashMap.get"(ptr %retparam15, ptr %map, i32 1)
+  %not_err = icmp eq i64 %12, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %13, label %after_check, label %after_check18
+
+after_check:                                      ; preds = %entry
+  %14 = insertvalue %any undef, ptr %retparam15, 0
+  %15 = insertvalue %any %14, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %15, ptr %varargslots14, align 16
+  %16 = call i64 @std.io.printfn(ptr %retparam16, ptr @.str.4, i64 7, ptr %varargslots14, i64 1)
+  %not_err17 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err17, i1 true)
+  br i1 %17, label %after_check18, label %after_check18
+
+after_check18:                                    ; preds = %entry, %after_check, %after_check
+  %18 = call i8 @"std_collections_map$int$test.Foo$.HashMap.has_key"(ptr %map, i32 1)
+  store i8 %18, ptr %taddr, align 1
+  %19 = insertvalue %any undef, ptr %taddr, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %20, ptr %varargslots19, align 16
+  %21 = call i64 @std.io.printfn(ptr %retparam20, ptr @.str.5, i64 9, ptr %varargslots19, i64 1)
+  %22 = call i8 @"std_collections_map$int$test.Foo$.HashMap.has_key"(ptr %map, i32 2)
+  store i8 %22, ptr %taddr24, align 1
+  %23 = insertvalue %any undef, ptr %taddr24, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %24, ptr %varargslots23, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam25, ptr @.str.6, i64 9, ptr %varargslots23, i64 1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal28, ptr align 8 @.__const.7, i32 16, i1 false)
+  %lo29 = load i32, ptr %literal28, align 8
+  %ptradd30 = getelementptr inbounds i8, ptr %literal28, i64 8
+  %hi31 = load ptr, ptr %ptradd30, align 8
+  %26 = call i8 @"std_collections_map$int$test.Foo$.HashMap.set"(ptr %map, i32 7, i32 %lo29, ptr %hi31)
+  %lo33 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi34 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %27 = call { ptr, i64 } @"std_collections_map$int$test.Foo$.HashMap.values"(ptr %map, i64 %lo33, ptr %hi34)
+  store { ptr, i64 } %27, ptr %result, align 8
+  %28 = insertvalue %any undef, ptr %result, 0
+  %29 = insertvalue %any %28, i64 ptrtoint (ptr @"$ct.sa$test.Foo" to i64), 1
+  store %any %29, ptr %varargslots32, align 16
+  %30 = call i64 @std.io.printfn(ptr %retparam35, ptr @.str.8, i64 10, ptr %varargslots32, i64 1)
+  call void @llvm.memset.p0.i64(ptr align 8 %map2, i8 0, i64 48, i1 false)
+  %lo38 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi39 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %31 = call ptr @"std_collections_map$int$double$.HashMap.init"(ptr %map2
+  %32 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map2, i32 4, double 1.300000e+00)
+  %33 = call i8 @"std_collections_map$int$double$.HashMap.has_value"(ptr %map2, double 1.300000e+00)
+  store i8 %33, ptr %taddr41, align 1
+  %34 = insertvalue %any undef, ptr %taddr41, 0
+  %35 = insertvalue %any %34, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %35, ptr %varargslots40, align 16
+  %36 = call i64 @std.io.printfn(ptr %retparam42, ptr @.str.9, i64 12, ptr %varargslots40, i64 1)
+  %37 = call i8 @"std_collections_map$int$double$.HashMap.has_value"(ptr %map2, double 1.200000e+00)
+  store i8 %37, ptr %taddr46, align 1
+  %38 = insertvalue %any undef, ptr %taddr46, 0
+  %39 = insertvalue %any %38, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %39, ptr %varargslots45, align 16
+  %40 = call i64 @std.io.printfn(ptr %retparam47, ptr @.str.10, i64 12, ptr %varargslots45, i64 1)
+  %41 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map2, i32 100, double 3.400000e+00)
+  %lo51 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi52 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %42 = call { ptr, i64 } @"std_collections_map$int$double$.HashMap.keys"(ptr %map2, i64 %lo51, ptr %hi52)
+  store { ptr, i64 } %42, ptr %result53, align 8
+  %43 = insertvalue %any undef, ptr %result53, 0
+  %44 = insertvalue %any %43, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %44, ptr %varargslots50, align 16
+  %45 = call i64 @std.io.printfn(ptr %retparam54, ptr @.str.11, i64 2, ptr %varargslots50, i64 1)
+  %lo58 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi59 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %46 = call { ptr, i64 } @"std_collections_map$int$double$.HashMap.values"(ptr %map2, i64 %lo58, ptr %hi59)
+  store { ptr, i64 } %46, ptr %result60, align 8
+  %47 = insertvalue %any undef, ptr %result60, 0
+  %48 = insertvalue %any %47, i64 ptrtoint (ptr @"$ct.sa$double" to i64), 1
+  store %any %48, ptr %varargslots57, align 16
+  %49 = call i64 @std.io.printfn(ptr %retparam61, ptr @.str.12, i64 2, ptr %varargslots57, i64 1)
+  %50 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  %i2nb = icmp eq ptr %50, null
+  br i1 %i2nb, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %after_check18
+  call void @std.core.mem.allocator.init_default_temp_allocators()
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %after_check18
+  %51 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  store ptr %51, ptr %current, align 8
+  %52 = load ptr, ptr %current, align 8
+  %ptradd64 = getelementptr inbounds i8, ptr %52, i64 24
+  %53 = load i64, ptr %ptradd64, align 8
+  store i64 %53, ptr %mark, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %map3, i8 0, i64 48, i1 false)
+  %lo65 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi66 = load ptr, ptr getelementptr inbounds
+  %54 = call ptr @"std_collections_map$int$double$.HashMap.init"(ptr %map3,
+  %55 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map3, i32 5, double 3.200000e+00)
+  %56 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map3, i32 7, double 5.200000e+00)
+  %lo68 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi69 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %57 = call { ptr, i64 } @"std_collections_map$int$double$.HashMap.keys"(ptr %map3, i64 %lo68, ptr %hi69)
+  store { ptr, i64 } %57, ptr %result70, align 8
+  %58 = insertvalue %any undef, ptr %result70, 0
+  %59 = insertvalue %any %58, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %59, ptr %varargslots67, align 16
+  %60 = call i64 @std.io.printfn(ptr %retparam71, ptr @.str.13, i64 2, ptr %varargslots67, i64 1)
+  %61 = load ptr, ptr %current, align 8
+  %62 = load i64, ptr %mark, align 8
+  call void @std.core.mem.allocator.TempAllocator.reset(ptr %61, i64 %62)
+  ret void
+}
+
+define internal void @.c3_dynamic_register() align 8 {
+entry:
+  %next_val = load ptr, ptr getelementptr
+  %0 = icmp eq ptr %next_val, inttoptr (i64 -1 to ptr)
+  br i1 %0, label %dtable_check, label %dtable_skip
+
+dtable_check:                                     ; preds = %dtable_check, %entry
+  %dtable_ref = phi ptr [ getelementptr inbounds
+  %dtable_ptr = load ptr, ptr %dtable_ref, align 8
+  %1 = icmp eq ptr %dtable_ptr, null
+  %next_dtable_ref = getelementptr inbounds
+  br i1 %1, label %dtable_found, label %dtable_check
+
+dtable_found:                                     ; preds = %dtable_check
+  store ptr @"$ct.dyn.test.Foo.to_new_string", ptr %dtable_ref, align 8
+  store ptr null, ptr getelementptr inbounds
+  br label %dtable_skip
+
+dtable_skip:                                      ; preds = %dtable_found, %entry
+  ret void
+}
diff --git a/test/test_suite7/stdlib/map_macos.c3t b/test/test_suite7/stdlib/map_macos.c3t
new file mode 100644
index 000000000..3b2622bb5
--- /dev/null
+++ b/test/test_suite7/stdlib/map_macos.c3t
@@ -0,0 +1,268 @@
+// #target: macos-x64
+
+module test;
+import std::io;
+import std::collections::map;
+
+struct Foo (Printable) { int x; void* bar; }
+
+def IntFooMap = HashMap { int, Foo };
+def IntDoubleMap = HashMap { int, double };
+
+fn String Foo.to_new_string(Foo* foo, Allocator allocator = allocator::heap()) @dynamic
+{
+	DString s = dstring::new_with_capacity(128, allocator);
+	s.appendf("{%s, %p}", foo.x, foo.bar);
+	return s.str_view();
+}
+
+
+
+fn void main()
+{
+	IntFooMap map;
+	map.init(mem);
+	io::printfn("Map size: %d", map.count);
+	map.set(1, { 1, null });
+	io::printfn("Map size: %d", map.count);
+	map.set(1, { 2, null });
+	io::printfn("Map size: %d", map.count);
+	(void)io::printfn("Val: %d", map.get(1).x);
+	io::printfn("Has 1: %s", map.has_key(1));
+	io::printfn("Has 2: %s", map.has_key(2));
+	map.set(7, { 4, null });
+	io::printfn("Values: %s", map.values(mem));
+	IntDoubleMap map2;
+	map2.init(mem);
+	map2.set(4, 1.3);
+	io::printfn("Map find: %s", map2.has_value(1.3));
+	io::printfn("Map find: %s", map2.has_value(1.2));
+	map2.set(100, 3.4);
+	io::printfn("%s", map2.keys(mem));
+	io::printfn("%s", map2.values(mem));
+	@pool()
+	{
+		IntDoubleMap map3;
+		map3.init(mem);
+		map3.set(5, 3.2);
+		map3.set(7, 5.2);
+		io::printfn("%s", map3.keys(mem));
+	};
+}
+
+/* #expect: test.ll
+
+@"$sel.to_new_string" = linkonce_odr constant [14 x i8] c"to_new_string\00", align 1
+@"$c3_dynamic" = internal global [1 x { ptr, ptr, i64 }] [{ ptr, ptr, i64 } { ptr @test.Foo.to_new_string, ptr @"$sel.to_new_string", i64 ptrtoint (ptr @"$ct.test.Foo" to i64) }], section "__DATA,__c3_dynamic", align 8
+
+define { ptr, i64 } @test.Foo.to_new_string(ptr %0, i64 %1, ptr %2) #0 {
+entry:
+  %allocator = alloca %any, align 8
+  %s = alloca ptr, align 8
+  %varargslots = alloca [2 x %any], align 16
+  %retparam = alloca i64, align 8
+  %result = alloca %"char[]", align 8
+  store i64 %1, ptr %allocator, align 8
+  %ptradd = getelementptr inbounds i8, ptr %allocator, i64 8
+  store ptr %2, ptr %ptradd, align 8
+  %lo = load i64, ptr %allocator, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %allocator, i64 8
+  %hi = load ptr, ptr %ptradd1, align 8
+  %3 = call ptr @std.core.dstring.new_with_capacity(i64 128, i64 %lo, ptr %hi)
+  store ptr %3, ptr %s, align 8
+  %4 = insertvalue %any undef, ptr %0, 0
+  %5 = insertvalue %any %4, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %5, ptr %varargslots, align 16
+  %ptradd2 = getelementptr inbounds i8, ptr %0, i64 8
+  %6 = insertvalue %any undef, ptr %ptradd2, 0
+  %7 = insertvalue %any %6, i64 ptrtoint (ptr @"$ct.p$void" to i64), 1
+  %ptradd3 = getelementptr inbounds i8, ptr %varargslots, i64 16
+  store %any %7, ptr %ptradd3, align 16
+  %8 = call i64 @std.core.dstring.DString.appendf(ptr %retparam, ptr %s, ptr @.str.14, i64 8, ptr %varargslots, i64 2)
+  %9 = load ptr, ptr %s, align 8
+  %10 = call { ptr, i64 } @std.core.dstring.DString.str_view(ptr %9)
+  store { ptr, i64 } %10, ptr %result, align 8
+  %11 = load { ptr, i64 }, ptr %result, align 8
+  ret { ptr, i64 } %11
+}
+
+define void @test.main() #0 {
+entry:
+  %map = alloca %HashMap, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %retparam = alloca i64, align 8
+  %literal = alloca %Foo, align 8
+  %varargslots4 = alloca [1 x %any], align 16
+  %retparam6 = alloca i64, align 8
+  %literal7 = alloca %Foo, align 8
+  %varargslots11 = alloca [1 x %any], align 16
+  %retparam13 = alloca i64, align 8
+  %varargslots14 = alloca [1 x %any], align 16
+  %retparam15 = alloca %Foo, align 8
+  %retparam16 = alloca i64, align 8
+  %varargslots19 = alloca [1 x %any], align 16
+  %taddr = alloca i8, align 1
+  %retparam20 = alloca i64, align 8
+  %varargslots23 = alloca [1 x %any], align 16
+  %taddr24 = alloca i8, align 1
+  %retparam25 = alloca i64, align 8
+  %literal28 = alloca %Foo, align 8
+  %varargslots32 = alloca [1 x %any], align 16
+  %result = alloca %"Foo[]", align 8
+  %retparam35 = alloca i64, align 8
+  %map2 = alloca %HashMap.0, align 8
+  %varargslots40 = alloca [1 x %any], align 16
+  %taddr41 = alloca i8, align 1
+  %retparam42 = alloca i64, align 8
+  %varargslots45 = alloca [1 x %any], align 16
+  %taddr46 = alloca i8, align 1
+  %retparam47 = alloca i64, align 8
+  %varargslots50 = alloca [1 x %any], align 16
+  %result53 = alloca %"int[]", align 8
+  %retparam54 = alloca i64, align 8
+  %varargslots57 = alloca [1 x %any], align 16
+  %result60 = alloca %"double[]", align 8
+  %retparam61 = alloca i64, align 8
+  %current = alloca ptr, align 8
+  %mark = alloca i64, align 8
+  %map3 = alloca %HashMap.0, align 8
+  %varargslots67 = alloca [1 x %any], align 16
+  %result70 = alloca %"int[]", align 8
+  %retparam71 = alloca i64, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %map, i8 0, i64 48, i1 false)
+  %lo = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %0 = call ptr @"std_collections_map$int$test.Foo$.HashMap.init"(ptr %map, i64 %lo, ptr %hi, i32 16, float 7.500000e-01)
+  %ptradd = getelementptr inbounds i8, ptr %map, i64 32
+  %1 = insertvalue %any undef, ptr %ptradd, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %2, ptr %varargslots, align 16
+  %3 = call i64 @std.io.printfn(ptr %retparam, ptr @.str, i64 12, ptr %varargslots, i64 1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 16, i1 false)
+  %lo1 = load i32, ptr %literal, align 8
+  %ptradd2 = getelementptr inbounds i8, ptr %literal, i64 8
+  %hi3 = load ptr, ptr %ptradd2, align 8
+  %4 = call i8 @"std_collections_map$int$test.Foo$.HashMap.set"(ptr %map, i32 1, i32 %lo1, ptr %hi3)
+  %ptradd5 = getelementptr inbounds i8, ptr %map, i64 32
+  %5 = insertvalue %any undef, ptr %ptradd5, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %6, ptr %varargslots4, align 16
+  %7 = call i64 @std.io.printfn(ptr %retparam6, ptr @.str.1, i64 12, ptr %varargslots4, i64 1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal7, ptr align 8 @.__const.2, i32 16, i1 false)
+  %lo8 = load i32, ptr %literal7, align 8
+  %ptradd9 = getelementptr inbounds i8, ptr %literal7, i64 8
+  %hi10 = load ptr, ptr %ptradd9, align 8
+  %8 = call i8 @"std_collections_map$int$test.Foo$.HashMap.set"(ptr %map, i32 1, i32 %lo8, ptr %hi10)
+  %ptradd12 = getelementptr inbounds i8, ptr %map, i64 32
+  %9 = insertvalue %any undef, ptr %ptradd12, 0
+  %10 = insertvalue %any %9, i64 ptrtoint (ptr @"$ct.uint" to i64), 1
+  store %any %10, ptr %varargslots11, align 16
+  %11 = call i64 @std.io.printfn(ptr %retparam13, ptr @.str.3, i64 12, ptr %varargslots11, i64 1)
+  %12 = call i64 @"std_collections_map$int$test.Foo$.HashMap.get"(ptr %retparam15, ptr %map, i32 1)
+  %not_err = icmp eq i64 %12, 0
+  %13 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %13, label %after_check, label %after_check18
+
+after_check:                                      ; preds = %entry
+  %14 = insertvalue %any undef, ptr %retparam15, 0
+  %15 = insertvalue %any %14, i64 ptrtoint (ptr @"$ct.int" to i64), 1
+  store %any %15, ptr %varargslots14, align 16
+  %16 = call i64 @std.io.printfn(ptr %retparam16, ptr @.str.4, i64 7, ptr %varargslots14, i64 1)
+  %not_err17 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err17, i1 true)
+  br i1 %17, label %after_check18, label %after_check18
+
+after_check18:                                    ; preds = %entry, %after_check, %after_check
+  %18 = call i8 @"std_collections_map$int$test.Foo$.HashMap.has_key"(ptr %map, i32 1)
+  store i8 %18, ptr %taddr, align 1
+  %19 = insertvalue %any undef, ptr %taddr, 0
+  %20 = insertvalue %any %19, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %20, ptr %varargslots19, align 16
+  %21 = call i64 @std.io.printfn(ptr %retparam20, ptr @.str.5, i64 9, ptr %varargslots19, i64 1)
+  %22 = call i8 @"std_collections_map$int$test.Foo$.HashMap.has_key"(ptr %map, i32 2)
+  store i8 %22, ptr %taddr24, align 1
+  %23 = insertvalue %any undef, ptr %taddr24, 0
+  %24 = insertvalue %any %23, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %24, ptr %varargslots23, align 16
+  %25 = call i64 @std.io.printfn(ptr %retparam25, ptr @.str.6, i64 9, ptr %varargslots23, i64 1)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal28, ptr align 8 @.__const.7, i32 16, i1 false)
+  %lo29 = load i32, ptr %literal28, align 8
+  %ptradd30 = getelementptr inbounds i8, ptr %literal28, i64 8
+  %hi31 = load ptr, ptr %ptradd30, align 8
+  %26 = call i8 @"std_collections_map$int$test.Foo$.HashMap.set"(ptr %map, i32 7, i32 %lo29, ptr %hi31)
+  %lo33 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi34 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %27 = call { ptr, i64 } @"std_collections_map$int$test.Foo$.HashMap.values"(ptr %map, i64 %lo33, ptr %hi34)
+  store { ptr, i64 } %27, ptr %result, align 8
+  %28 = insertvalue %any undef, ptr %result, 0
+  %29 = insertvalue %any %28, i64 ptrtoint (ptr @"$ct.sa$test.Foo" to i64), 1
+  store %any %29, ptr %varargslots32, align 16
+  %30 = call i64 @std.io.printfn(ptr %retparam35, ptr @.str.8, i64 10, ptr %varargslots32, i64 1)
+  call void @llvm.memset.p0.i64(ptr align 8 %map2, i8 0, i64 48, i1 false)
+  %lo38 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi39 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %31 = call ptr @"std_collections_map$int$double$.HashMap.init"(ptr %map2, i64 %lo38, ptr %hi39, i32 16, float 7.500000e-01)
+  %32 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map2, i32 4, double 1.300000e+00)
+  %33 = call i8 @"std_collections_map$int$double$.HashMap.has_value"(ptr %map2, double 1.300000e+00)
+  store i8 %33, ptr %taddr41, align 1
+  %34 = insertvalue %any undef, ptr %taddr41, 0
+  %35 = insertvalue %any %34, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %35, ptr %varargslots40, align 16
+  %36 = call i64 @std.io.printfn(ptr %retparam42, ptr @.str.9, i64 12, ptr %varargslots40, i64 1)
+  %37 = call i8 @"std_collections_map$int$double$.HashMap.has_value"(ptr %map2, double 1.200000e+00)
+  store i8 %37, ptr %taddr46, align 1
+  %38 = insertvalue %any undef, ptr %taddr46, 0
+  %39 = insertvalue %any %38, i64 ptrtoint (ptr @"$ct.bool" to i64), 1
+  store %any %39, ptr %varargslots45, align 16
+  %40 = call i64 @std.io.printfn(ptr %retparam47, ptr @.str.10, i64 12, ptr %varargslots45, i64 1)
+  %41 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map2, i32 100, double 3.400000e+00)
+  %lo51 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi52 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %42 = call { ptr, i64 } @"std_collections_map$int$double$.HashMap.keys"(ptr %map2, i64 %lo51, ptr %hi52)
+  store { ptr, i64 } %42, ptr %result53, align 8
+  %43 = insertvalue %any undef, ptr %result53, 0
+  %44 = insertvalue %any %43, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %44, ptr %varargslots50, align 16
+  %45 = call i64 @std.io.printfn(ptr %retparam54, ptr @.str.11, i64 2, ptr %varargslots50, i64 1)
+  %lo58 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi59 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %46 = call { ptr, i64 } @"std_collections_map$int$double$.HashMap.values"(ptr %map2, i64 %lo58, ptr %hi59)
+  store { ptr, i64 } %46, ptr %result60, align 8
+  %47 = insertvalue %any undef, ptr %result60, 0
+  %48 = insertvalue %any %47, i64 ptrtoint (ptr @"$ct.sa$double" to i64), 1
+  store %any %48, ptr %varargslots57, align 16
+  %49 = call i64 @std.io.printfn(ptr %retparam61, ptr @.str.12, i64 2, ptr %varargslots57, i64 1)
+  %50 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  %i2nb = icmp eq ptr %50, null
+  br i1 %i2nb, label %if.then, label %if.exit
+
+if.then:                                          ; preds = %after_check18
+  call void @std.core.mem.allocator.init_default_temp_allocators()
+  br label %if.exit
+
+if.exit:                                          ; preds = %if.then, %after_check18
+  %51 = load ptr, ptr @std.core.mem.allocator.thread_temp_allocator, align 8
+  store ptr %51, ptr %current, align 8
+  %52 = load ptr, ptr %current, align 8
+  %ptradd64 = getelementptr inbounds i8, ptr %52, i64 24
+  %53 = load i64, ptr %ptradd64, align 8
+  store i64 %53, ptr %mark, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %map3, i8 0, i64 48, i1 false)
+  %lo65 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi66 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %54 = call ptr @"std_collections_map$int$double$.HashMap.init"(ptr %map3, i64 %lo65, ptr %hi66, i32 16, float 7.500000e-01)
+  %55 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map3, i32 5, double 3.200000e+00)
+  %56 = call i8 @"std_collections_map$int$double$.HashMap.set"(ptr %map3, i32 7, double 5.200000e+00)
+  %lo68 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi69 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %57 = call { ptr, i64 } @"std_collections_map$int$double$.HashMap.keys"(ptr %map3, i64 %lo68, ptr %hi69)
+  store { ptr, i64 } %57, ptr %result70, align 8
+  %58 = insertvalue %any undef, ptr %result70, 0
+  %59 = insertvalue %any %58, i64 ptrtoint (ptr @"$ct.sa$int" to i64), 1
+  store %any %59, ptr %varargslots67, align 16
+  %60 = call i64 @std.io.printfn(ptr %retparam71, ptr @.str.13, i64 2, ptr %varargslots67, i64 1)
+  %61 = load ptr, ptr %current, align 8
+  %62 = load i64, ptr %mark, align 8
+  call void @std.core.mem.allocator.TempAllocator.reset(ptr %61, i64 %62)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/stdlib/memcomp.c3t b/test/test_suite7/stdlib/memcomp.c3t
new file mode 100644
index 000000000..1b9dfd516
--- /dev/null
+++ b/test/test_suite7/stdlib/memcomp.c3t
@@ -0,0 +1,16 @@
+// #target: macos-x64
+module test;
+import std::io;
+import libc;
+
+fn void main()
+{
+	int[] ab = { 3, 5, 6, 10, 0x0b2399 };
+	int[] cd = { 3, 5, 6, 10, 0x0b2399 };
+	char[] x = "hello world!";
+	char[] y = "hello world?";
+	io::printfn("is matching: %s", mem::equals(ab, cd));
+	io::printfn("is matching: %s", mem::equals(x, y));
+	io::printfn("is matching: %s", mem::equals(x.ptr, y.ptr, x.len));
+	io::printfn("is matching: %s", mem::equals(ab.ptr, cd.ptr, ab.len * 4, 4));
+}
\ No newline at end of file
diff --git a/test/test_suite7/stdlib/minmax.c3 b/test/test_suite7/stdlib/minmax.c3
new file mode 100644
index 000000000..b8bfa7446
--- /dev/null
+++ b/test/test_suite7/stdlib/minmax.c3
@@ -0,0 +1,9 @@
+import std::io;
+
+fn void main()
+{
+    io::printfn("min(-1, 1) == %s", min(-1, 1));
+    io::printfn("max(-1, 1) == %s", max(-1, 1));
+    io::printfn("min(-1, 0, 1) == %s", min(-1, 0, 1));
+    io::printfn("max(-1, 0, 1) == %s", max(-1, 0, 1));
+}
diff --git a/test/test_suite7/stdlib/print_env_defines.c3 b/test/test_suite7/stdlib/print_env_defines.c3
new file mode 100644
index 000000000..e764da65e
--- /dev/null
+++ b/test/test_suite7/stdlib/print_env_defines.c3
@@ -0,0 +1,15 @@
+import std::io;
+
+fn void main()
+{
+    io::printfn("LLVM version:       %s", env::LLVM_VERSION);
+    io::printfn("Optimization level: %s", env::COMPILER_OPT_LEVEL);
+    io::printfn("Safe mode:          %s", env::COMPILER_SAFE_MODE);
+    io::printfn("OS type:            %s", env::OS_TYPE);
+    io::printfn("Big endian:         %s", env::BIG_ENDIAN);
+    io::printfn("i128 support:       %s", env::I128_NATIVE_SUPPORT);
+    io::printfn("f16 support:        %s", env::F16_SUPPORT);
+    io::printfn("f128 support:       %s", env::F128_SUPPORT);
+    io::printfn("Benchmarking:       %s", env::BENCHMARKING);
+    io::printfn("Testing:            %s", env::TESTING);
+}
\ No newline at end of file
diff --git a/test/test_suite7/stdlib/priorityqueue.c3t b/test/test_suite7/stdlib/priorityqueue.c3t
new file mode 100644
index 000000000..676dc2454
--- /dev/null
+++ b/test/test_suite7/stdlib/priorityqueue.c3t
@@ -0,0 +1,31 @@
+// #target: macos-x64
+module test;
+import std::io;
+import std::math;
+import std::collections::priorityqueue;
+
+def FooPriorityQueue = PriorityQueueMax{Foo};
+
+fn void main()
+{
+
+	FooPriorityQueue agh;
+	agh.push((Foo) { 3 });
+	agh.push((Foo) { 101 });
+	agh.push({ 10 });
+	while (try f = agh.pop()) io::printf("%s\n", f.x);
+}
+
+struct Foo
+{
+	int x;
+}
+
+fn bool Foo.less(Foo* x, Foo y) @inline
+{
+	return x.x < y.x;
+}
+
+/* #expect: test.ll
+
+%PrivatePriorityQueue = type { %List }
diff --git a/test/test_suite7/strings/literal_errors.c3 b/test/test_suite7/strings/literal_errors.c3
new file mode 100644
index 000000000..805772c4a
--- /dev/null
+++ b/test/test_suite7/strings/literal_errors.c3
@@ -0,0 +1,22 @@
+// #target: macos-x64
+
+char bar = '\xaf';
+char bar = '\x0F';
+
+char bar = '\xgh'; // #error: Expected a two character
+
+char baz = '\ueeof'; // #error: Expected a four char
+char eofk = '\u233'; // #error: Expected a four char
+
+char zab = '\Uaokdokok'; // #error: Expected an eight
+char zab = '\Uaokdooekfoekfekfkeofkekok'; // #error: Expected an eight
+char eofkq = '\UaUfko'; // #error: Expected an eight
+
+char x1 = '\u0023a'; // #error: Character literals with '\u' can only contain one character
+char x2 = '\U00000023a'; // #error: Character literals with '\U' can only contain one character
+
+char x = 'äö'; // #error: may only contain one character
+char feokf = '\9'; // #error: Invalid escape sequence '\9'
+char fje = '123456789012345678'; // #error: The character literal exceeds 16 characters.
+
+char foekfe = ''; // #error: The character literal was empty
\ No newline at end of file
diff --git a/test/test_suite7/strings/literal_hex_ok.c3 b/test/test_suite7/strings/literal_hex_ok.c3
new file mode 100644
index 000000000..943edca35
--- /dev/null
+++ b/test/test_suite7/strings/literal_hex_ok.c3
@@ -0,0 +1,3 @@
+char bar1 = '\xaf';
+ichar bar2 = '\x0F';
+ushort bar4 = '\u0FaF';
diff --git a/test/test_suite7/strings/literal_to_subarray.c3t b/test/test_suite7/strings/literal_to_subarray.c3t
new file mode 100644
index 000000000..141707113
--- /dev/null
+++ b/test/test_suite7/strings/literal_to_subarray.c3t
@@ -0,0 +1,24 @@
+// #target: macos-x64
+
+char[] y = "hello";
+
+fn void test()
+{
+    char[] x = "world";
+}
+
+/* #expect: literal_to_subarray.ll
+
+%"char[]" = type { ptr, i64 }
+
+@.str = private unnamed_addr constant [6 x i8] c"hello\00", align 1
+@literal_to_subarray.y = local_unnamed_addr global %"char[]" { ptr @.str, i64 5 }, align 8
+@.str.1 = private unnamed_addr constant [6 x i8] c"world\00", align 1
+
+
+define void @literal_to_subarray.test() #0 {
+entry:
+  %x = alloca %"char[]", align 8
+  store %"char[]" { ptr @.str.1, i64 5 }, ptr %x, align 8
+  ret void
+}
diff --git a/test/test_suite7/strings/multiline_strings.c3t b/test/test_suite7/strings/multiline_strings.c3t
new file mode 100644
index 000000000..13b1f69b0
--- /dev/null
+++ b/test/test_suite7/strings/multiline_strings.c3t
@@ -0,0 +1,18 @@
+// #target: macos-x64
+
+// This will depend on platform source file line endings
+char *message2 = `
+  ``oh`` superman
+    where are you now?
+`;
+
+char *message3 = "Hfo\u0044ke";
+char *message4 = "\x64\x6f\x63\x75\x6d\x65\x6e\x74";
+
+
+/* #expect: multiline_strings.ll
+
+
+@.str = private unnamed_addr constant [41 x i8] c"\0A  `oh` superman\0A    where are you now?\0A\00", align 1
+@.str.3 = private unnamed_addr constant [7 x i8] c"HfoDke\00", align 1
+@.str.4 = private unnamed_addr constant [9 x i8] c"document\00", align 1
\ No newline at end of file
diff --git a/test/test_suite7/strings/string_escape.c3t b/test/test_suite7/strings/string_escape.c3t
new file mode 100644
index 000000000..e926a940a
--- /dev/null
+++ b/test/test_suite7/strings/string_escape.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+fn void main()
+{
+    char *s = "Hello\0 world!" " now";
+}
+
+/* #expect: string_escape.ll
+
+@.str = private unnamed_addr constant [18 x i8] c"Hello\00 world! now\00", align 1
+
+define void @string_escape.main() #0 {
+entry:
+  %s = alloca ptr, align 8
+  store ptr @.str, ptr %s, align 8
+  ret void
+}
+
+define i32 @main(i32 %0, ptr %1) #0 {
+entry:
+  call void @string_escape.main()
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/strings/string_len.c3t b/test/test_suite7/strings/string_len.c3t
new file mode 100644
index 000000000..8d76b2898
--- /dev/null
+++ b/test/test_suite7/strings/string_len.c3t
@@ -0,0 +1,7 @@
+// #target: macos-x64
+
+int i = "123".len;
+
+/* #expect: string_len.ll
+
+@string_len.i = local_unnamed_addr global i32 3, align 4
\ No newline at end of file
diff --git a/test/test_suite7/strings/string_to_array.c3t b/test/test_suite7/strings/string_to_array.c3t
new file mode 100644
index 000000000..f29d45a93
--- /dev/null
+++ b/test/test_suite7/strings/string_to_array.c3t
@@ -0,0 +1,28 @@
+// #target: macos-x64
+module foo;
+
+char[2] g = "ab";
+char[?] h = "abc";
+
+fn int main()
+{
+    char[2] x = "ab";
+    char[?] y = "abc";
+    return 0;
+}
+
+/* #expect: foo.ll
+
+@foo.g = local_unnamed_addr global [2 x i8] c"ab", align 1
+@foo.h = local_unnamed_addr global [3 x i8] c"abc", align 1
+@.str = private unnamed_addr constant [3 x i8] c"ab\00", align 1
+@.str.2 = private unnamed_addr constant [4 x i8] c"abc\00", align 1
+
+define i32 @main() #0 {
+entry:
+  %x = alloca [2 x i8], align 1
+  %y = alloca [3 x i8], align 1
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %x, ptr align 1 @.str, i32 2, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %y, ptr align 1 @.str.2, i32 3, i1 false)
+  ret i32 0
+}
\ No newline at end of file
diff --git a/test/test_suite7/struct/const_access_error.c3 b/test/test_suite7/struct/const_access_error.c3
new file mode 100644
index 000000000..f9d839978
--- /dev/null
+++ b/test/test_suite7/struct/const_access_error.c3
@@ -0,0 +1,6 @@
+
+fn void main()
+{
+	int x;
+	x.""; // #error: Expected an identifier here
+}
\ No newline at end of file
diff --git a/test/test_suite7/struct/const_slice_struct.c3t b/test/test_suite7/struct/const_slice_struct.c3t
new file mode 100644
index 000000000..837488e2e
--- /dev/null
+++ b/test/test_suite7/struct/const_slice_struct.c3t
@@ -0,0 +1,37 @@
+// #target: macos-x64
+module test;
+// Issue #1812
+struct Foo
+{
+  float a;
+  String b;
+}
+
+struct Bar
+{
+	float a;
+	int[] b;
+}
+const Foo FOO = {.a = 1};
+const Bar FOO2 = {.a = 1, .b = { 1, 3 } };
+
+fn int main()
+{
+  Foo asdf = FOO;
+  Bar foek = FOO2;
+  return 0;
+}
+
+/* #expect: test.ll
+
+@test.FOO = local_unnamed_addr constant %Foo { float 1.000000e+00, %"char[]" zeroinitializer }, align 8
+@.__const_slice = private unnamed_addr global [2 x i32] [i32 1, i32 3], align 4
+@test.FOO2 = local_unnamed_addr constant %Bar { float 1.000000e+00, %"int[]" { ptr @.__const_slice, i64 2 } }, align 8
+
+entry:
+  %asdf = alloca %Foo, align 8
+  %foek = alloca %Bar, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %asdf, ptr align 8 @test.FOO, i32 24, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %foek, ptr align 8 @test.FOO2, i32 24, i1 false)
+  ret i32 0
+}
diff --git a/test/test_suite7/struct/const_zero_init_1360.c3t b/test/test_suite7/struct/const_zero_init_1360.c3t
new file mode 100644
index 000000000..9cbaa9545
--- /dev/null
+++ b/test/test_suite7/struct/const_zero_init_1360.c3t
@@ -0,0 +1,27 @@
+// #target: macos-x64
+module test;
+import std::collections::map;
+
+def Foo = HashMap(<String, HashMap(<String, String>)>);
+macro test()
+{
+    HashMap(<String, String>) map0;
+    map0["c3c"] = {};
+
+    Foo map;
+    map["c3c"] = {};
+    map["c3c"] = { {}, null, 1 ,2 ,2 };
+
+	HashMap(<String, HashMap(<String, String>)>) map2;
+    map2["c3c"] = {};
+    map2["c3c"] = { {}, null, 1 ,2 ,2 };
+
+}
+fn void main()
+{
+	test();
+}
+
+/* #expect: test.ll
+
+main
\ No newline at end of file
diff --git a/test/test_suite7/struct/duplicate_member.c3 b/test/test_suite7/struct/duplicate_member.c3
new file mode 100644
index 000000000..c2a6f8c54
--- /dev/null
+++ b/test/test_suite7/struct/duplicate_member.c3
@@ -0,0 +1,72 @@
+// @warnings{no-unused}
+module test;
+
+struct Aa
+{
+    int a;
+    int a;    // #error: Duplicate member name 'a'
+}
+
+struct Bb
+{
+    int a;
+    struct a // #error: Duplicate member name 'a'
+    {
+        int b;
+    }
+}
+
+union Cc
+{
+    int a;
+    int a;    // #error: Duplicate member name 'a'
+}
+
+union Cc2
+{
+    int a;
+
+    struct b
+    {
+        int c;
+        int c;    // #error: Duplicate member name 'c'
+    }
+}
+struct Dd
+{
+    int b;
+    int a;
+    struct
+    {
+        union
+        {
+            short a;  // #error: Duplicate member name 'a'
+        }
+    }
+}
+
+union Ee
+{
+    int a;
+    struct
+    {
+        short a;  // #error: Duplicate member name 'a'
+    }
+}
+
+struct Ff
+{
+    struct
+    {
+        int a;
+    }
+    struct b
+    {
+        int a;
+    }
+    union
+    {
+        int a;  // #error: Duplicate member name 'a'
+    }
+}
+
diff --git a/test/test_suite7/struct/flex_array_comparison.c3 b/test/test_suite7/struct/flex_array_comparison.c3
new file mode 100644
index 000000000..d2f0c09be
--- /dev/null
+++ b/test/test_suite7/struct/flex_array_comparison.c3
@@ -0,0 +1,15 @@
+module test;
+
+struct Abc
+{
+	int x;
+	int[?] y;
+}
+
+
+fn void test()
+{
+	Abc x;
+	Abc y;
+	bool same = x.y == y.y; // #error: does not support comparisons
+}
\ No newline at end of file
diff --git a/test/test_suite7/struct/flex_array_struct_err.c3 b/test/test_suite7/struct/flex_array_struct_err.c3
new file mode 100644
index 000000000..8ec5ae6eb
--- /dev/null
+++ b/test/test_suite7/struct/flex_array_struct_err.c3
@@ -0,0 +1,31 @@
+struct Foo
+{
+    int x;
+    int[?] y; // #error: flexible array member must be the last element
+    int z;
+}
+
+struct Bar
+{
+    int[?] y; // #error: flexible array member cannot be the only element
+}
+
+struct Baz
+{
+    int y;
+    int[?] z;
+}
+
+struct BazContainerOk
+{
+    int z;
+    Baz c;
+}
+
+struct BazContainer
+{
+    Baz c; // #error: A struct member with a flexible array must be the last element.
+    int y;
+}
+
+Baz[5] ab; // #error: Arrays of structs with flexible array members is not allowed.
\ No newline at end of file
diff --git a/test/test_suite7/struct/flexible_array_resolve.c3 b/test/test_suite7/struct/flexible_array_resolve.c3
new file mode 100644
index 000000000..1255468cf
--- /dev/null
+++ b/test/test_suite7/struct/flexible_array_resolve.c3
@@ -0,0 +1,16 @@
+struct Abc
+{
+	Foo[4] x; // #error: Arrays of structs with flexible array members
+}
+
+struct Foo
+{
+	int a;
+	int[?] x;
+}
+
+struct Foo2
+{
+	int a;
+	int[?] x, y; // #error: must be the last element
+}
diff --git a/test/test_suite7/struct/func_return_struct.c3 b/test/test_suite7/struct/func_return_struct.c3
new file mode 100644
index 000000000..66ae003b3
--- /dev/null
+++ b/test/test_suite7/struct/func_return_struct.c3
@@ -0,0 +1,12 @@
+struct Test
+{
+  int i;
+  short s1, s2;
+}
+
+extern fn Test func_returning_struct();
+
+fn void loop()
+{
+    func_returning_struct();
+}
diff --git a/test/test_suite7/struct/init_cont_struct_array_locally.c3t b/test/test_suite7/struct/init_cont_struct_array_locally.c3t
new file mode 100644
index 000000000..b56588b26
--- /dev/null
+++ b/test/test_suite7/struct/init_cont_struct_array_locally.c3t
@@ -0,0 +1,206 @@
+// #target: macos-x64
+module test;
+import std::io;
+struct Test
+{
+  char[2] id;
+}
+
+Test t = (Test){"id"};
+fn int main()
+{
+	io::printn(t);
+	Test y = (Test) { "id" };
+    io::printn();
+    return 0;
+}
+
+/* #expect: test.ll
+
+entry:
+  %x = alloca %Test, align 1
+  %x1 = alloca %Test, align 1
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %x2 = alloca %Test, align 1
+  %formatter = alloca %Formatter, align 8
+  %taddr = alloca %any, align 8
+  %value = alloca %Test, align 1
+  %total = alloca i64, align 8
+  %error_var5 = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %error_var6 = alloca i64, align 8
+  %varargslots = alloca [1 x %any], align 16
+  %taddr7 = alloca %"char[]", align 8
+  %retparam8 = alloca i64, align 8
+  %error_var14 = alloca i64, align 8
+  %varargslots15 = alloca [1 x %any], align 16
+  %retparam16 = alloca i64, align 8
+  %retparam23 = alloca i64, align 8
+  %error_var30 = alloca i64, align 8
+  %error_var36 = alloca i64, align 8
+  %y = alloca %Test, align 1
+  %len43 = alloca i64, align 8
+  %error_var44 = alloca i64, align 8
+  %retparam46 = alloca i64, align 8
+  %error_var52 = alloca i64, align 8
+  %error_var58 = alloca i64, align 8
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %x, ptr align 1 @test.t, i32 2, i1 false)
+  %0 = call ptr @std.io.stdout()
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %x1, ptr align 1 %x, i32 2, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %x2, ptr align 1 %x1, i32 2, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %formatter, i8 0, i64 48, i1 false)
+  %1 = insertvalue %any undef, ptr %0, 0
+  %2 = insertvalue %any %1, i64 ptrtoint (ptr @"$ct.std.io.File" to i64), 1
+  store %any %2, ptr %taddr, align 8
+  call void @std.io.Formatter.init(ptr %formatter, ptr @std.io.out_putstream_fn, ptr %taddr)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %value, ptr align 1 %x2, i32 2, i1 false)
+  %3 = call i64 @std.io.Formatter.print(ptr %retparam, ptr %formatter, ptr @.str, i64 2)
+  %not_err = icmp eq i64 %3, 0
+  %4 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %4, label %after_check, label %assign_optional
+assign_optional:                                  ; preds = %entry
+  store i64 %3, ptr %error_var5, align 8
+  br label %guard_block
+after_check:                                      ; preds = %entry
+  br label %noerr_block
+guard_block:                                      ; preds = %assign_optional
+  %5 = load i64, ptr %error_var5, align 8
+  store i64 %5, ptr %error_var, align 8
+  br label %guard_block28
+noerr_block:                                      ; preds = %after_check
+  %6 = load i64, ptr %retparam, align 8
+  store i64 %6, ptr %total, align 8
+  %7 = load i64, ptr %total, align 8
+  store %"char[]" { ptr @.str.2, i64 2 }, ptr %taddr7, align 8
+  %8 = insertvalue %any undef, ptr %taddr7, 0
+  %9 = insertvalue %any %8, i64 ptrtoint (ptr @"$ct.String" to i64), 1
+  store %any %9, ptr %varargslots, align 16
+  %10 = call i64 @std.io.Formatter.printf(ptr %retparam8, ptr %formatter, ptr @.str.1, i64 4, ptr %varargslots, i64 1)
+  %not_err9 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %11, label %after_check11, label %assign_optional10
+assign_optional10:                                ; preds = %noerr_block
+  store i64 %10, ptr %error_var6, align 8
+  br label %guard_block12
+after_check11:                                    ; preds = %noerr_block
+  br label %noerr_block13
+guard_block12:                                    ; preds = %assign_optional10
+  %12 = load i64, ptr %error_var6, align 8
+  store i64 %12, ptr %error_var, align 8
+  br label %guard_block28
+noerr_block13:                                    ; preds = %after_check11
+  %13 = load i64, ptr %retparam8, align 8
+  %add = add i64 %7, %13
+  store i64 %add, ptr %total, align 8
+  %14 = load i64, ptr %total, align 8
+  %15 = insertvalue %any undef, ptr %value, 0
+  %16 = insertvalue %any %15, i64 ptrtoint (ptr @"$ct.a2$char" to i64), 1
+  store %any %16, ptr %varargslots15, align 16
+  %17 = call i64 @std.io.Formatter.printf(ptr %retparam16, ptr %formatter, ptr @.str.3, i64 2, ptr %varargslots15, i64 1)
+  %not_err17 = icmp eq i64 %17, 0
+  %18 = call i1 @llvm.expect.i1(i1 %not_err17, i1 true)
+  br i1 %18, label %after_check19, label %assign_optional18
+assign_optional18:                                ; preds = %noerr_block13
+  store i64 %17, ptr %error_var14, align 8
+  br label %guard_block20
+after_check19:                                    ; preds = %noerr_block13
+  br label %noerr_block21
+guard_block20:                                    ; preds = %assign_optional18
+  %19 = load i64, ptr %error_var14, align 8
+  store i64 %19, ptr %error_var, align 8
+  br label %guard_block28
+noerr_block21:                                    ; preds = %after_check19
+  %20 = load i64, ptr %retparam16, align 8
+  %add22 = add i64 %14, %20
+  store i64 %add22, ptr %total, align 8
+  %21 = load i64, ptr %total, align 8
+  %22 = call i64 @std.io.Formatter.print(ptr %retparam23, ptr %formatter, ptr @.str.4, i64 2)
+  %not_err24 = icmp eq i64 %22, 0
+  %23 = call i1 @llvm.expect.i1(i1 %not_err24, i1 true)
+  br i1 %23, label %after_check26, label %assign_optional25
+assign_optional25:                                ; preds = %noerr_block21
+  store i64 %22, ptr %error_var, align 8
+  br label %guard_block28
+after_check26:                                    ; preds = %noerr_block21
+  %24 = load i64, ptr %retparam23, align 8
+  %add27 = add i64 %21, %24
+  br label %noerr_block29
+guard_block28:                                    ; preds = %assign_optional25, %guard_block20, %guard_block12, %guard_block
+  br label %voiderr
+noerr_block29:                                    ; preds = %after_check26
+  store i64 %add27, ptr %len, align 8
+  %25 = call i64 @std.io.File.write_byte(ptr %0, i8 zeroext 10)
+  %not_err31 = icmp eq i64 %25, 0
+  %26 = call i1 @llvm.expect.i1(i1 %not_err31, i1 true)
+  br i1 %26, label %after_check33, label %assign_optional32
+assign_optional32:                                ; preds = %noerr_block29
+  store i64 %25, ptr %error_var30, align 8
+  br label %guard_block34
+after_check33:                                    ; preds = %noerr_block29
+  br label %noerr_block35
+guard_block34:                                    ; preds = %assign_optional32
+  br label %voiderr
+noerr_block35:                                    ; preds = %after_check33
+  %27 = call i64 @std.io.File.flush(ptr %0)
+  %not_err37 = icmp eq i64 %27, 0
+  %28 = call i1 @llvm.expect.i1(i1 %not_err37, i1 true)
+  br i1 %28, label %after_check39, label %assign_optional38
+assign_optional38:                                ; preds = %noerr_block35
+  store i64 %27, ptr %error_var36, align 8
+  br label %guard_block40
+after_check39:                                    ; preds = %noerr_block35
+  br label %noerr_block41
+guard_block40:                                    ; preds = %assign_optional38
+  br label %voiderr
+noerr_block41:                                    ; preds = %after_check39
+  %29 = load i64, ptr %len, align 8
+  %add42 = add i64 %29, 1
+  br label %voiderr
+voiderr:                                          ; preds = %noerr_block41, %guard_block40, %guard_block34, %guard_block28
+  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %y, ptr align 1 @.__const, i32 2, i1 false)
+  %30 = call ptr @std.io.stdout()
+  %31 = call i64 @std.io.File.write(ptr %retparam46, ptr %30, ptr null, i64 0)
+  %not_err47 = icmp eq i64 %31, 0
+  %32 = call i1 @llvm.expect.i1(i1 %not_err47, i1 true)
+  br i1 %32, label %after_check49, label %assign_optional48
+assign_optional48:                                ; preds = %voiderr
+  store i64 %31, ptr %error_var44, align 8
+  br label %guard_block50
+after_check49:                                    ; preds = %voiderr
+  br label %noerr_block51
+guard_block50:                                    ; preds = %assign_optional48
+  br label %voiderr65
+noerr_block51:                                    ; preds = %after_check49
+  %33 = load i64, ptr %retparam46, align 8
+  store i64 %33, ptr %len43, align 8
+  %34 = call i64 @std.io.File.write_byte(ptr %30, i8 zeroext 10)
+  %not_err53 = icmp eq i64 %34, 0
+  %35 = call i1 @llvm.expect.i1(i1 %not_err53, i1 true)
+  br i1 %35, label %after_check55, label %assign_optional54
+assign_optional54:                                ; preds = %noerr_block51
+  store i64 %34, ptr %error_var52, align 8
+  br label %guard_block56
+after_check55:                                    ; preds = %noerr_block51
+  br label %noerr_block57
+guard_block56:                                    ; preds = %assign_optional54
+  br label %voiderr65
+noerr_block57:                                    ; preds = %after_check55
+  %36 = call i64 @std.io.File.flush(ptr %30)
+  %not_err59 = icmp eq i64 %36, 0
+  %37 = call i1 @llvm.expect.i1(i1 %not_err59, i1 true)
+  br i1 %37, label %after_check61, label %assign_optional60
+assign_optional60:                                ; preds = %noerr_block57
+  store i64 %36, ptr %error_var58, align 8
+  br label %guard_block62
+after_check61:                                    ; preds = %noerr_block57
+  br label %noerr_block63
+guard_block62:                                    ; preds = %assign_optional60
+  br label %voiderr65
+noerr_block63:                                    ; preds = %after_check61
+  %38 = load i64, ptr %len43, align 8
+  %add64 = add i64 %38, 1
+  br label %voiderr65
+voiderr65:                                        ; preds = %noerr_block63, %guard_block62, %guard_block56, %guard_block50
+  ret i32 0
+}
diff --git a/test/test_suite7/struct/initialize_inline_designated.c3t b/test/test_suite7/struct/initialize_inline_designated.c3t
new file mode 100644
index 000000000..f8c0fe5d9
--- /dev/null
+++ b/test/test_suite7/struct/initialize_inline_designated.c3t
@@ -0,0 +1,31 @@
+// #target: macos-x64
+module test;
+import std;
+struct Abc
+{
+	int a;
+	int b;
+}
+
+struct Bcd
+{
+	inline Abc x;
+	int y;
+}
+fn void main()
+{
+	Bcd z = { .x.b = 333, .a = 123 };
+}
+/* #expect: test.ll
+
+%Bcd = type { %Abc, i32 }
+%Abc = type { i32, i32 }
+
+  %z = alloca %Bcd, align 4
+  store i32 123, ptr %z, align 4
+  %ptradd = getelementptr inbounds i8, ptr %z, i64 4
+  store i32 333, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %z, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  ret void
+}
diff --git a/test/test_suite7/struct/inline_array_access.c3t b/test/test_suite7/struct/inline_array_access.c3t
new file mode 100644
index 000000000..44665f6c8
--- /dev/null
+++ b/test/test_suite7/struct/inline_array_access.c3t
@@ -0,0 +1,33 @@
+// #target: macos-x64
+module test;
+import std;
+struct Abc
+{
+	inline int[4] x;
+}
+fn void main()
+{
+	Abc y;
+	y.x[3] = 123;
+	int z = y[3];
+}
+
+/* #expect: test.ll
+
+entry:
+  %y = alloca %Abc, align 4
+  %z = alloca i32, align 4
+  store i32 0, ptr %y, align 4
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 4
+  store i32 0, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 8
+  store i32 0, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %y, i64 12
+  store i32 0, ptr %ptradd2, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %y, i64 12
+  store i32 123, ptr %ptradd3, align 4
+  %ptradd4 = getelementptr inbounds i8, ptr %y, i64 12
+  %0 = load i32, ptr %ptradd4, align 4
+  store i32 %0, ptr %z, align 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/struct/inner_struct_name.c3 b/test/test_suite7/struct/inner_struct_name.c3
new file mode 100644
index 000000000..01d8fa6f1
--- /dev/null
+++ b/test/test_suite7/struct/inner_struct_name.c3
@@ -0,0 +1,5 @@
+struct Foo {
+    union Bar { // #error: name of an inner struct
+        int a;
+    }
+}
diff --git a/test/test_suite7/struct/member_access.c3 b/test/test_suite7/struct/member_access.c3
new file mode 100644
index 000000000..c8a95f80e
--- /dev/null
+++ b/test/test_suite7/struct/member_access.c3
@@ -0,0 +1,87 @@
+module test;
+
+
+struct Multi
+{
+    int a, b, c;
+}
+
+struct Point
+{
+    int a;
+    struct bb
+    {
+        int b;
+    }
+    struct
+    {
+        int b;
+        int c;
+        struct
+        {
+            Point* p;
+        }
+    }
+    union
+    {
+        int d;
+        short e;
+    }
+    union uu {
+        int d;
+        ushort e;
+    }
+}
+
+
+fn void tester()
+{
+    Multi m;
+    m.a = 1;
+    Point p;
+    p.a = 1;
+    p.bb.b = 2;
+    p.b = 3;
+    p.c = 4;
+    p.p = null;
+    p.d = 5;
+    p.e = 6;
+    p.uu.d = 7;
+    p.uu.e = 8;
+    Point *p2 = &p;
+    p2.bb.b = 3;
+    p = { .a = 1, .bb.b = 3, .e = 2 };
+
+    Point* pp = &p;
+    pp.a = 20;
+}
+
+struct Aa1
+{
+    struct bb
+    {
+        int b;
+    }
+    struct
+    {
+        int c;
+    }
+}
+
+fn void test_conversion_struct()
+{
+    Aa1 a1;
+    int aa = a1.bb;    // #error: 'Aa1.bb' to 'int'
+}
+
+struct Struct
+{
+    int a;
+}
+
+fn void myfunc()
+{
+    Struct s;
+    s.b = 10;       // #error: There is no field or method 'Struct.b'
+}
+
diff --git a/test/test_suite7/struct/member_expr.c3 b/test/test_suite7/struct/member_expr.c3
new file mode 100644
index 000000000..2e5d18c70
--- /dev/null
+++ b/test/test_suite7/struct/member_expr.c3
@@ -0,0 +1,31 @@
+
+def Func = fn int(int);
+
+def Func2 = fn int(Foo*, int);
+
+struct Foo
+{
+    int a;
+    Func callback;
+}
+
+fn int Foo.func2(Foo* f, int i)
+{
+    return f.a + i;
+}
+
+fn void test_unknown_member()
+{
+   int a = Foo.b;               // #error: No method or inner struct/union 'Foo.b' found.
+}
+
+
+fn void test_nonstatic_stuct_func1()
+{
+    Func2 a = &Foo.func2;
+}
+
+fn void test_nonstatic_stuct_func2()
+{
+    int b = Foo.func2(null, 2);
+}
diff --git a/test/test_suite7/struct/multi_member_attributes.c3t b/test/test_suite7/struct/multi_member_attributes.c3t
new file mode 100644
index 000000000..73d8880c7
--- /dev/null
+++ b/test/test_suite7/struct/multi_member_attributes.c3t
@@ -0,0 +1,22 @@
+// #target: macos-x64
+
+module test;
+
+char  x, y, z @align(64);
+
+struct Vector3
+{
+     char x, y, z @align(8); // Issue #1266
+}
+
+Vector3 a = { 6, 8, 16 };
+
+/* #expect: test.ll
+
+
+%Vector3 = type { i8, [7 x i8], i8, [7 x i8], i8, [7 x i8] }
+
+@test.x = local_unnamed_addr global i8 0, align 64
+@test.y = local_unnamed_addr global i8 0, align 64
+@test.z = local_unnamed_addr global i8 0, align 64
+@test.a = local_unnamed_addr global %Vector3 { i8 6, [7 x i8] undef, i8 8, [7 x i8] undef, i8 16, [7 x i8] undef }, align 8
diff --git a/test/test_suite7/struct/nested_struct_init.c3t b/test/test_suite7/struct/nested_struct_init.c3t
new file mode 100644
index 000000000..c67162466
--- /dev/null
+++ b/test/test_suite7/struct/nested_struct_init.c3t
@@ -0,0 +1,71 @@
+// #target: macos-x64
+module foo;
+import libc;
+
+struct Matrix2x2
+{
+	union
+	{
+		struct {
+			float m00, m01, m10, m11;
+		}
+		float[4] m;
+	}
+}
+
+struct Matrix2x2_b
+{
+	union
+	{
+		float[4] m;
+		struct {
+			float m00, m01, m10, m11;
+		}
+	}
+}
+
+fn void main()
+{
+	Matrix2x2 m = { 1, 2, 3, 4 };
+	Matrix2x2_b m2 = { { 1, 2, 3, 4 } };
+	libc::printf("%f %f %f %f\n", m.m00, m.m[1], m.m10, m.m[3]);
+}
+/* #expect: foo.ll
+
+%Matrix2x2 = type { %.anon }
+%.anon = type { %.anon.0 }
+%.anon.0 = type { float, float, float, float }
+%Matrix2x2_b = type { %.anon.1 }
+%.anon.1 = type { [4 x float] }
+
+@"$ct.foo.$anon" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 4, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.$anon.3" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.Matrix2x2" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.$anon.6" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 4, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.$anon.7" = linkonce global %.introspect { i8 11, i64 0, ptr null, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.foo.Matrix2x2_b" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant %Matrix2x2 { %.anon { %.anon.0 { float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 } } }, align 4
+@.__const.8 = private unnamed_addr constant %Matrix2x2_b { %.anon.1 { [4 x float] [float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00] } }, align 4
+@.str = private unnamed_addr constant [13 x i8] c"%f %f %f %f\0A\00", align 1
+
+; Function Attrs:
+define void @foo.main() #0 {
+entry:
+  %m = alloca %Matrix2x2, align 4
+  %m2 = alloca %Matrix2x2_b, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m, ptr align 4 @.__const, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m2, ptr align 4 @.__const.8, i32 16, i1 false)
+  %0 = load float, ptr %m, align 4
+  %fpfpext = fpext float %0 to double
+  %ptradd = getelementptr inbounds i8, ptr %m, i64 4
+  %1 = load float, ptr %ptradd, align 4
+  %fpfpext1 = fpext float %1 to double
+  %ptradd2 = getelementptr inbounds i8, ptr %m, i64 8
+  %2 = load float, ptr %ptradd2, align 4
+  %fpfpext3 = fpext float %2 to double
+  %ptradd4 = getelementptr inbounds i8, ptr %m, i64 12
+  %3 = load float, ptr %ptradd4, align 4
+  %fpfpext5 = fpext float %3 to double
+  %4 = call i32 (ptr, ...) @printf(ptr @.str, double %fpfpext, double %fpfpext1, double %fpfpext3, double %fpfpext5)
+  ret void
+}
diff --git a/test/test_suite7/struct/nested_struct_union_init.c3t b/test/test_suite7/struct/nested_struct_union_init.c3t
new file mode 100644
index 000000000..5be6af01b
--- /dev/null
+++ b/test/test_suite7/struct/nested_struct_union_init.c3t
@@ -0,0 +1,110 @@
+// #target: macos-x64
+module foob;
+import libc;
+struct Matrix2x2
+{
+	union
+	{
+		float[4] m;
+		struct
+		{
+			float m00, m01, m10, m11;
+		}
+	}
+}
+
+struct Matrix2x2_b
+{
+	union
+	{
+		struct
+		{
+			float m00, m01, m10, m11;
+		}
+		float[4] m;
+	}
+}
+struct Matrix4x4
+{
+    union
+    {
+        struct
+        {
+            float m00, m01, m02, m03;
+            float m10, m11, m12, m13;
+            float m20, m21, m22, m23;
+            float m30, m31, m32, m33;
+        }
+        float[16] m;
+    }
+}
+
+
+struct Matrix3x3
+{
+    union
+    {
+        struct
+        {
+            float m00, m01, m02, m10, m11, m12, m20, m21, m22;
+        }
+        float[9] m;
+    }
+}
+fn void main()
+{
+	Matrix3x3 x = { 1, 2, 3, 4, 5, 6, 7,8 ,9};
+	Matrix2x2 m = { (float[4]) { 1, 2, 3, 4 } };
+	Matrix2x2_b m2 = { 1, 2, 3, 4 };
+	libc::printf("%f %f %f %f\n", x.m00, x.m[1], x.m10, x.m[3]);
+}
+
+/* #expect: foob.ll
+
+%Matrix2x2 = type { %.anon.1 }
+%.anon.1 = type { [4 x float] }
+%Matrix2x2_b = type { %.anon.2 }
+%.anon.2 = type { %.anon.3 }
+%.anon.3 = type { float, float, float, float }
+%Matrix3x3 = type { %.anon }
+%.anon = type { %.anon.0 }
+%.anon.0 = type { float, float, float, float, float, float, float, float, float }
+
+define void @foob.main() #0 {
+entry:
+  %x = alloca %Matrix3x3, align 4
+  %m = alloca %Matrix2x2, align 4
+  %m2 = alloca %Matrix2x2_b, align 4
+  store float 1.000000e+00, ptr %x, align 4
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  store float 2.000000e+00, ptr %ptradd, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
+  store float 3.000000e+00, ptr %ptradd1, align 4
+  %ptradd2 = getelementptr inbounds i8, ptr %x, i64 12
+  store float 4.000000e+00, ptr %ptradd2, align 4
+  %ptradd3 = getelementptr inbounds i8, ptr %x, i64 16
+  store float 5.000000e+00, ptr %ptradd3, align 4
+  %ptradd4 = getelementptr inbounds i8, ptr %x, i64 20
+  store float 6.000000e+00, ptr %ptradd4, align 4
+  %ptradd5 = getelementptr inbounds i8, ptr %x, i64 24
+  store float 7.000000e+00, ptr %ptradd5, align 4
+  %ptradd6 = getelementptr inbounds i8, ptr %x, i64 28
+  store float 8.000000e+00, ptr %ptradd6, align 4
+  %ptradd7 = getelementptr inbounds i8, ptr %x, i64 32
+  store float 9.000000e+00, ptr %ptradd7, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m, ptr align 4 @.__const, i32 16, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m2, ptr align 4 @.__const.16, i32 16, i1 false)
+  %0 = load float, ptr %x, align 4
+  %fpfpext = fpext float %0 to double
+  %ptradd8 = getelementptr inbounds i8, ptr %x, i64 4
+  %1 = load float, ptr %ptradd8, align 4
+  %fpfpext9 = fpext float %1 to double
+  %ptradd10 = getelementptr inbounds i8, ptr %x, i64 12
+  %2 = load float, ptr %ptradd10, align 4
+  %fpfpext11 = fpext float %2 to double
+  %ptradd12 = getelementptr inbounds i8, ptr %x, i64 12
+  %3 = load float, ptr %ptradd12, align 4
+  %fpfpext13 = fpext float %3 to double
+  %4 = call i32 (ptr, ...) @printf(ptr @.str, double %fpfpext, double %fpfpext9, double %fpfpext11, double %fpfpext13)
+  ret void
+}
diff --git a/test/test_suite7/struct/recursive_structs.c3 b/test/test_suite7/struct/recursive_structs.c3
new file mode 100644
index 000000000..19dbbf06a
--- /dev/null
+++ b/test/test_suite7/struct/recursive_structs.c3
@@ -0,0 +1,25 @@
+struct Test1
+{
+    Test1 *x;
+}
+
+struct Test2
+{
+    Test2[] y;
+}
+
+struct Test3 // #error: Recursive definition
+{
+    Test3[4] z;
+}
+
+struct Test4
+{
+    Test4[3]* w;
+}
+
+
+struct Test5
+{
+    Test5[3][] w;
+}
diff --git a/test/test_suite7/struct/simple_struct.c3t b/test/test_suite7/struct/simple_struct.c3t
new file mode 100644
index 000000000..89a87c560
--- /dev/null
+++ b/test/test_suite7/struct/simple_struct.c3t
@@ -0,0 +1,14 @@
+module test;
+
+Foo a @private;
+
+struct Foo
+{
+    int x;
+    double a;
+}
+
+/* #expect: test.ll
+
+%Foo = type { i32, double }
+@test.a = internal unnamed_addr global %Foo zeroinitializer, align 8
\ No newline at end of file
diff --git a/test/test_suite7/struct/sret.c3t b/test/test_suite7/struct/sret.c3t
new file mode 100644
index 000000000..a96701630
--- /dev/null
+++ b/test/test_suite7/struct/sret.c3t
@@ -0,0 +1,26 @@
+// #target: macos-x64
+struct Abc
+{
+	long a;
+    long b;
+    long c;
+    long d;
+    long e;
+}
+
+extern fn Abc foo1();
+extern fn Abc foo2();
+
+fn void bar()
+{
+  Abc dummy1 = foo1();
+  Abc dummy2 = foo2();
+}
+
+
+/* #expect: sret.ll
+
+sret(%Abc)
+sret(%Abc)
+sret(%Abc)
+sret(%Abc)
\ No newline at end of file
diff --git a/test/test_suite7/struct/struct_as_value.c3t b/test/test_suite7/struct/struct_as_value.c3t
new file mode 100644
index 000000000..58d5a0602
--- /dev/null
+++ b/test/test_suite7/struct/struct_as_value.c3t
@@ -0,0 +1,46 @@
+// #target: macos-x64
+module test;
+
+struct Event
+{
+    int op;
+}
+
+fn Event test(int x)
+{
+  Event foo = { 1 };
+  Event bar = { 2 };
+  return x ? foo : bar;
+}
+
+/* #expect: test.ll
+%Event = type { i32 }
+
+@"$ct.test.Event" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 4, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant %Event { i32 1 }, align 4
+@.__const.1 = private unnamed_addr constant %Event { i32 2 }, align 4
+
+define i32 @test.test(i32 %0) #0 {
+entry:
+  %foo = alloca %Event, align 4
+  %bar = alloca %Event, align 4
+  %taddr = alloca %Event, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %foo, ptr align 4 @.__const, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %bar, ptr align 4 @.__const.1, i32 4, i1 false)
+  %i2b = icmp ne i32 %0, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  %1 = load %Event, ptr %foo, align 4
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  %2 = load %Event, ptr %bar, align 4
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi %Event [ %1, %cond.lhs ], [ %2, %cond.rhs ]
+  store %Event %val, ptr %taddr, align 4
+  %3 = load i32, ptr %taddr, align 4
+  ret i32 %3
+}
\ No newline at end of file
diff --git a/test/test_suite7/struct/struct_as_value_aarch64.c3t b/test/test_suite7/struct/struct_as_value_aarch64.c3t
new file mode 100644
index 000000000..7c76ec120
--- /dev/null
+++ b/test/test_suite7/struct/struct_as_value_aarch64.c3t
@@ -0,0 +1,41 @@
+// #target: linux-aarch64
+module test;
+
+struct Event
+{
+    int op;
+}
+
+fn Event test(int x)
+{
+  Event foo = { 1 };
+  Event bar = { 2 };
+  return x ? foo : bar;
+}
+
+/* #expect: test.ll
+
+define i32 @test.test(i32 %0) #0 {
+entry:
+  %foo = alloca %Event, align 4
+  %bar = alloca %Event, align 4
+  %taddr = alloca %Event, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %foo, ptr align 4 @.__const, i32 4, i1 false)
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %bar, ptr align 4 @.__const.1, i32 4, i1 false)
+  %i2b = icmp ne i32 %0, 0
+  br i1 %i2b, label %cond.lhs, label %cond.rhs
+
+cond.lhs:                                         ; preds = %entry
+  %1 = load %Event, ptr %foo, align 4
+  br label %cond.phi
+
+cond.rhs:                                         ; preds = %entry
+  %2 = load %Event, ptr %bar, align 4
+  br label %cond.phi
+
+cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
+  %val = phi %Event [ %1, %cond.lhs ], [ %2, %cond.rhs ]
+  store %Event %val, ptr %taddr, align 4
+  %3 = load i32, ptr %taddr, align 4
+  ret i32 %3
+}
diff --git a/test/test_suite7/struct/struct_bad_member.c3 b/test/test_suite7/struct/struct_bad_member.c3
new file mode 100644
index 000000000..49486d7ed
--- /dev/null
+++ b/test/test_suite7/struct/struct_bad_member.c3
@@ -0,0 +1,19 @@
+struct Foo {
+  void bar; // #error: Members cannot be of
+}
+
+def Void = void;
+struct Foo2 {
+  Void bar; // #error: Members cannot be of
+}
+
+distinct Void2 = void;
+struct Foo3 {
+  Void2 bar; // #error: has unknown size
+}
+
+fn void main(String[] args) {
+  Foo foo;
+  Foo2 foo2;
+  Foo3 foo3;
+}
diff --git a/test/test_suite7/struct/struct_codegen.c3t b/test/test_suite7/struct/struct_codegen.c3t
new file mode 100644
index 000000000..966691695
--- /dev/null
+++ b/test/test_suite7/struct/struct_codegen.c3t
@@ -0,0 +1,27 @@
+// #target: macos-x64
+module test;
+
+struct Point
+{
+    int x;
+    int y;
+}
+
+fn void test1()
+{
+    Point p = { 5, 6 };
+}
+
+/* #expect: test.ll
+
+%Point = type { i32, i32 }
+
+@"$ct.test.Point" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.__const = private unnamed_addr constant %Point { i32 5, i32 6 }, align 4
+
+define void @test.test1() #0 {
+entry:
+  %p = alloca %Point, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %p, ptr align 4 @.__const, i32 8, i1 false)
+  ret void
+}
diff --git a/test/test_suite7/struct/struct_codegen_empty.c3t b/test/test_suite7/struct/struct_codegen_empty.c3t
new file mode 100644
index 000000000..e2ccf101d
--- /dev/null
+++ b/test/test_suite7/struct/struct_codegen_empty.c3t
@@ -0,0 +1,39 @@
+// #target: macos-x64
+struct StructA
+{
+    int a;
+}
+
+struct StructB
+{
+    struct b
+    {
+        int a;
+    }
+}
+
+fn void test()
+{
+    StructA a = {};
+    StructA a2;
+    StructB b = {};
+    StructB b2;
+    StructB b3 = { .b = { } };
+}
+
+/* #expect: struct_codegen_empty.ll
+
+ define void @struct_codegen_empty.test() #0 {
+ entry:
+   %a = alloca %StructA, align 4
+   %a2 = alloca %StructA, align 4
+   %b = alloca %StructB, align 4
+   %b2 = alloca %StructB, align 4
+   %b3 = alloca %StructB, align 4
+   store i32 0, ptr %a, align 4
+   store i32 0, ptr %a2, align 4
+   store i32 0, ptr %b, align 4
+   store i32 0, ptr %b2, align 4
+   store i32 0, ptr %b3, align 4
+   ret void
+ }
\ No newline at end of file
diff --git a/test/test_suite7/struct/struct_codegen_fam.c3t b/test/test_suite7/struct/struct_codegen_fam.c3t
new file mode 100644
index 000000000..daaeb7c81
--- /dev/null
+++ b/test/test_suite7/struct/struct_codegen_fam.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module foo;
+
+struct Bar
+{
+    struct
+    {
+        int y;
+    }
+    int ufe;
+    int[?] z;
+}
+
+
+fn void test(Bar b)
+{
+    b.z[1];
+}
+
+/* #expect: foo.ll
+
+%Bar = type { %.anon, i32, [0 x i32] }
+%.anon = type { i32 }
+
+define void @foo.test(ptr byval(%Bar) align 8 %0) #0 {
+entry:
+  %ptradd = getelementptr inbounds i8, ptr %0, i64 8
+  %ptradd1 = getelementptr inbounds i8, ptr %ptradd, i64 4
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/struct/struct_comma.c3 b/test/test_suite7/struct/struct_comma.c3
new file mode 100644
index 000000000..4fcecc5d2
--- /dev/null
+++ b/test/test_suite7/struct/struct_comma.c3
@@ -0,0 +1,7 @@
+import std::io;
+
+ struct Test
+ {
+    int a, // #error: Did you accidentally use ','
+    int b,
+ }
diff --git a/test/test_suite7/struct/struct_const_construct_simple.c3t b/test/test_suite7/struct/struct_const_construct_simple.c3t
new file mode 100644
index 000000000..2a81d9db5
--- /dev/null
+++ b/test/test_suite7/struct/struct_const_construct_simple.c3t
@@ -0,0 +1,32 @@
+// #target: macos-x64
+module structo;
+
+struct Foo
+{
+    int foo;
+    long bar;
+}
+
+usz x @private = Foo.sizeof;
+
+Foo foo1 @private = { 1, 2 };
+Foo foo2 @private = { .foo = 2 };
+Foo foo3 @private = { .bar = 3 };
+Foo foo4 @private = { .bar = 4, .foo = 4, .bar = 1 };
+Foo foo5 @private = {};
+Foo foo6 @private;
+const Foo FOO7 @private = { 1, 2 };
+Foo foo8 @private = FOO7;
+
+/* #expect: structo.ll
+
+@"$ct.structo.Foo" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@structo.x = internal unnamed_addr global i64 16, align 8
+@structo.foo1 = internal unnamed_addr global %Foo { i32 1, i64 2 }, align 8
+@structo.foo2 = internal unnamed_addr global %Foo { i32 2, i64 0 }, align 8
+@structo.foo3 = internal unnamed_addr global %Foo { i32 0, i64 3 }, align 8
+@structo.foo4 = internal unnamed_addr global %Foo { i32 4, i64 1 }, align 8
+@structo.foo5 = internal unnamed_addr global %Foo zeroinitializer, align 8
+@structo.foo6 = internal unnamed_addr global %Foo zeroinitializer, align 8
+@structo.FOO7 = internal unnamed_addr constant %Foo { i32 1, i64 2 }, align 8
+@structo.foo8 = internal unnamed_addr global %Foo { i32 1, i64 2 }, align 8
diff --git a/test/test_suite7/struct/struct_nopadding_compact.c3t b/test/test_suite7/struct/struct_nopadding_compact.c3t
new file mode 100644
index 000000000..e96d58244
--- /dev/null
+++ b/test/test_suite7/struct/struct_nopadding_compact.c3t
@@ -0,0 +1,272 @@
+module struct2;
+
+struct Foo1
+{
+  bool a @nopadding;
+  int b;
+  int c @nopadding;
+}
+
+union Foo1_Union
+{
+  bool a @nopadding;
+  int b;
+  int c @nopadding;
+}
+
+struct Foo2 @nopadding
+{
+  bool a;
+  bool b;
+  bool c;
+}
+
+union Foo2_Union @nopadding
+{
+  bool a;
+  bool b;
+  bool c;
+}
+
+struct Foo3
+{
+  bool a;
+  int b @nopadding; // #error: 3 bytes of padding would be added
+  int c @nopadding;
+}
+
+struct Foo4 @nopadding
+{
+  bool a;
+  int b; // #error: 3 bytes of padding would be added
+  int c;
+}
+
+struct Foo5 @nopadding // #error: 3 bytes of padding would be added
+{
+  int a;
+  bool b;
+}
+
+struct Foo5_B @align(16) @nopadding // #error: 8 bytes of padding would be added
+{
+  int a;
+  int b;
+}
+
+struct Foo6 @nopadding
+{
+  int a;
+  struct // #error: 3 bytes of padding would be added
+  {
+    int b;
+    bool c;
+  }
+}
+
+struct Foo7 @nopadding
+{
+  int a;
+  struct nested
+  {
+    bool b;
+    int c; // #error: 3 bytes of padding would be added
+  }
+}
+
+struct Foo7_A @nopadding
+{
+  int a;
+  struct
+  {
+    bool b;
+    union // #error: 7 bytes of padding would be added
+    {
+      int c;
+      long d;
+    }
+  }
+}
+
+struct Foo7_B @nopadding
+{
+  int a;
+  char[4] _pad;
+  struct
+  {
+    long b;
+    union
+    {
+      int c;
+      long d;
+      struct // #error: 3 bytes of padding would be added
+      {
+        int e;
+        bool f;
+      }
+    }
+  }
+}
+
+struct Foo7_C @nopadding
+{
+  int a;
+  char[4] _pad;
+  struct
+  {
+    int b @align(8);
+    union // #error: 4 bytes of padding would be added
+    {
+      int c;
+      long d;
+      struct
+      {
+        bool f;
+      }
+    }
+  }
+}
+
+struct Foo10 @nopadding
+{
+  inline Foo2 a;
+}
+
+struct Foo11 @nopadding
+{
+  inline Foo1 a; // #error: An inlined struct or union type also requires the `@nopadding` attribute
+}
+
+struct Foo11_A @nopadding
+{
+  inline Foo1_Union a; // #error: An inlined struct or union type also requires the `@nopadding` attribute
+}
+
+union Foo12 @nopadding
+{
+  int b;
+  bool a;
+  long c;
+  struct
+  {
+    bool d;
+    int e; // #error: 3 bytes of padding would be added
+  }
+}
+
+union Foo12_A @nopadding
+{
+  int b;
+  bool a;
+  long c;
+}
+
+struct Foo13 @nopadding
+{
+  inline Foo12_A a;
+  short b @align(32); // #error: 24 bytes of padding would be added
+}
+
+struct Foo14 @compact // #error: 2 bytes of padding would be added to the end
+{
+  Foo10 a @align(4);
+  char[1] _pad;
+  short b;
+}
+
+struct Foo1_Compact
+{
+  bool a @compact; // #error: '@compact' is not a valid member attribute
+  int b;
+  int c @compact;
+}
+
+struct Foo2_Compact @compact
+{
+  bool a;
+  bool b;
+  bool c;
+}
+
+struct Foo4_Compact @compact
+{
+  bool a;
+  int b; // #error: 3 bytes of padding would be added
+  int c;
+}
+
+struct Foo5_Compact @compact // #error: 3 bytes of padding would be added
+{
+  int a;
+  bool b;
+}
+
+struct Foo6_Compact @compact
+{
+  int a;
+  struct nested // #error: 3 bytes of padding would be added
+  {
+    int a;
+    bool b;
+  }
+}
+
+struct Foo7_Compact @compact
+{
+  int a;
+  struct nested
+  {
+    bool b;
+    int a; // #error: 3 bytes of padding would be added
+  }
+}
+
+struct Foo8 @compact
+{
+  Foo8_A a; // #error: 'Foo8_A' has padding
+}
+
+struct Foo8_A
+{
+  long a;
+  Foo8_B b;
+}
+
+struct Foo8_B
+{
+  int a;
+  char[4] _pad;
+  struct
+  {
+    long b;
+    union
+    {
+      int c;
+      long d;
+      struct
+      {
+        int e;
+        Foo8_C f;
+      }
+    }
+  }
+}
+
+struct Foo8_C
+{
+  bool a;
+  int b;
+}
+
+struct Foo9 @compact
+{
+  Foo10 a;
+  char[13] _pad;
+  Foo9_A b; // #error: 'Foo9_A' has padding
+}
+
+struct Foo9_A @align(16)
+{
+  int a;
+  int b;
+}
diff --git a/test/test_suite7/struct/struct_pack_and_align.c3t b/test/test_suite7/struct/struct_pack_and_align.c3t
new file mode 100644
index 000000000..db00f4275
--- /dev/null
+++ b/test/test_suite7/struct/struct_pack_and_align.c3t
@@ -0,0 +1,101 @@
+// #target: macos-x64
+
+module struct2;
+
+// <{ i64, i8, [3 x i8] }>
+struct Foo1 @packed @align(4)
+{
+    long bar;
+    char foo;
+}
+
+$assert Foo1.sizeof == 12;
+Foo1 foo1 = { 1, 2 };
+
+// <{ i8, i64, [3 x i8] }>
+struct Foo2 @packed @align(4)
+{
+    char foo;
+    long bar;
+}
+
+$assert Foo2.sizeof == 12;
+Foo2 foo2 = { 1, 2 };
+
+// <{ i8, i64, [7 x i8] }>
+struct Foo3 @packed @align(8)
+{
+    char foo;
+    long bar;
+}
+
+Foo3 foo3 = { 1, 2 };
+$assert Foo3.sizeof == 16;
+
+// <{ i8, i64 }>
+struct Foo4 @packed
+{
+    char foo;
+    long bar;
+}
+
+$assert Foo4.sizeof == 9;
+Foo4 foo4 = { 1, 2 };
+
+// { i32, [12 x i8], i8, [15 x i8] }
+struct Foo5
+{
+    int bar @align(16);
+    ichar foo @align(16);
+}
+
+$assert Foo5.sizeof == 32;
+Foo5 foo5 = { 1, 2 };
+
+fn int test5(ichar x)
+{
+    Foo5 y = { .foo = x };
+    return y.foo + y.bar;
+}
+
+// { i32, i16, i16 }
+struct Foo6 @packed
+{
+    int a;
+    short b;
+    short c;
+}
+
+$assert Foo6.sizeof == 8;
+Foo6 foo6 = { 1, 2, 3 };
+
+/* #expect: struct2.ll
+
+%Foo1 = type <{ i64, i8, [3 x i8] }>
+%Foo2 = type <{ i8, i64, [3 x i8] }>
+%Foo3 = type <{ i8, i64, [7 x i8] }>
+%Foo4 = type <{ i8, i64 }>
+%Foo5 = type { i32, [12 x i8], i8, [15 x i8] }
+%Foo6 = type { i32, i16, i16 }
+
+@struct2.foo1 = local_unnamed_addr global %Foo1 <{ i64 1, i8 2, [3 x i8] undef }>, align 4
+@struct2.foo2 = local_unnamed_addr global %Foo2 <{ i8 1, i64 2, [3 x i8] undef }>, align 4
+@struct2.foo3 = local_unnamed_addr global %Foo3 <{ i8 1, i64 2, [7 x i8] undef }>, align 8
+@struct2.foo4 = local_unnamed_addr global %Foo4 <{ i8 1, i64 2 }>, align 1
+@struct2.foo5 = local_unnamed_addr global %Foo5 { i32 1, [12 x i8] undef, i8 2, [15 x i8] undef }, align 16
+@struct2.foo6 = local_unnamed_addr global %Foo6 { i32 1, i16 2, i16 3 }, align 1
+
+; Function Attrs:
+define i32 @struct2.test5(i8 signext %0) #0 {
+entry:
+  %y = alloca %Foo5, align 16
+  call void @llvm.memset.p0.i64(ptr align 16 %y, i8 0, i64 32, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %y, i64 16
+  store i8 %0, ptr %ptradd, align 16
+  %ptradd1 = getelementptr inbounds i8, ptr %y, i64 16
+  %1 = load i8, ptr %ptradd1, align 16
+  %sext = sext i8 %1 to i32
+  %2 = load i32, ptr %y, align 16
+  %add = add i32 %sext, %2
+  ret i32 %add
+}
diff --git a/test/test_suite7/struct/struct_pack_error.c3t b/test/test_suite7/struct/struct_pack_error.c3t
new file mode 100644
index 000000000..cb8022635
--- /dev/null
+++ b/test/test_suite7/struct/struct_pack_error.c3t
@@ -0,0 +1,48 @@
+// #target: macos-x64
+module test;
+import std;
+
+// issue 1966
+
+struct MsgHeader @packed
+{
+    ulong enqueued_by_router_us;
+}
+
+enum ClientState
+{
+    NOT_INITIALIZED,
+    WAITING_FOR_LOGIN,
+    READY,
+    WAITING_FOR_CLOSE,
+}
+
+struct Client
+{
+    ClientState state;
+    MsgHeader header;
+    ushort service_id;
+    ElasticArray(<ulong, 1>) subscribers;
+}
+
+Client[10] clients;
+
+fn void main()
+{
+	void* a = ((void*)(&clients[0])) + Client.sizeof;
+	void* b =  &clients[1];
+}
+
+/* #expect: test.ll
+
+%Client = type <{ i32, %MsgHeader, i16, [2 x i8], %ElasticArray }>
+%MsgHeader = type { i64 }
+%ElasticArray = type { i64, [1 x i64] }
+define void @test.main() #0 {
+entry:
+  %a = alloca ptr, align 8
+  %b = alloca ptr, align 8
+  store ptr getelementptr (i8, ptr @test.clients, i64 32), ptr %a, align 8
+  store ptr getelementptr inbounds (i8, ptr @test.clients, i64 32), ptr %b, align 8
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/struct/struct_params.c3 b/test/test_suite7/struct/struct_params.c3
new file mode 100644
index 000000000..8a4bd2f69
--- /dev/null
+++ b/test/test_suite7/struct/struct_params.c3
@@ -0,0 +1,27 @@
+module test;
+
+struct Foo
+{
+  char p;
+  short q;
+  char r;
+  int x;
+  short y, z;
+  int q2;
+}
+
+extern fn int test(Foo, float);
+extern fn int testE(char,short,char,int,int,float);
+
+fn void test3(Foo *x)
+{
+    x.q = 1;
+}
+
+fn void test2(Foo y)
+{
+    testE(y.p, y.q, y.r, y.x, y.y, 0.1);
+    test(y, 0.1);
+    test2(y);
+    test3(&y);
+}
diff --git a/test/test_suite7/struct/struct_reinit.c3t b/test/test_suite7/struct/struct_reinit.c3t
new file mode 100644
index 000000000..656a88118
--- /dev/null
+++ b/test/test_suite7/struct/struct_reinit.c3t
@@ -0,0 +1,40 @@
+// #target: macos-x64
+module test;
+import std;
+struct Abc
+{
+	int a;
+	int b;
+}
+
+fn void print(Abc* x)
+{
+	io::printfn("%d %d", x.a, x.b);
+}
+fn void main()
+{
+	Abc x = { 1, 4};
+	print(&x) @noinline;
+	x = (Abc) { x.b, x.a };
+	print(&x) @noinline;
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %x = alloca %Abc, align 4
+  %.assign_list = alloca %Abc, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 @.__const, i32 8, i1 false)
+  call void @test.print(ptr %x) #3
+  %ptradd = getelementptr inbounds i8, ptr %x, i64 4
+  %0 = load i32, ptr %ptradd, align 4
+  store i32 %0, ptr %.assign_list, align 4
+  %ptradd1 = getelementptr inbounds i8, ptr %.assign_list, i64 4
+  %1 = load i32, ptr %x, align 4
+  store i32 %1, ptr %ptradd1, align 4
+  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %x, ptr align 4 %.assign_list, i32 8, i1 false)
+  call void @test.print(ptr %x) #3
+  ret void
+}
+
diff --git a/test/test_suite7/struct/struct_union_inner_align.c3t b/test/test_suite7/struct/struct_union_inner_align.c3t
new file mode 100644
index 000000000..6fe14a932
--- /dev/null
+++ b/test/test_suite7/struct/struct_union_inner_align.c3t
@@ -0,0 +1,43 @@
+// #target: macos-x64
+module test;
+
+union Test @align(16)
+{
+	char foo;
+}
+
+union Test3
+{
+	Test test;
+	ulong a @align(32);
+}
+
+struct Test2
+{
+	Test test;
+	uint a;
+}
+
+fn int main()
+{
+	Test2 a;
+	Test b;
+	Test3 c;
+	$assert(32 == Test3.sizeof);
+	$assert(32 == Test3.alignof);
+	$assert(32 == Test2.sizeof);
+	$assert(16 == Test2.alignof);
+	$assert(16 == Test.sizeof);
+	$assert(16 == Test.alignof);
+	return 0;
+}
+
+/* #expect: test.ll
+
+%Test2 = type { %Test, i32, [12 x i8] }
+%Test = type { i8, [15 x i8] }
+%Test3 = type { i64, [24 x i8] }
+
+  %a = alloca %Test2, align 16
+  %b = alloca %Test, align 16
+  %c = alloca %Test3, align 32
diff --git a/test/test_suite7/struct/zero_member.c3 b/test/test_suite7/struct/zero_member.c3
new file mode 100644
index 000000000..fab779baa
--- /dev/null
+++ b/test/test_suite7/struct/zero_member.c3
@@ -0,0 +1,7 @@
+def Foo = int[0]; // #error: An array may not have zero
+
+struct Bar
+{
+    Foo x;
+    int b;
+}
\ No newline at end of file
diff --git a/test/test_suite7/switch/bad_ranges.c3 b/test/test_suite7/switch/bad_ranges.c3
new file mode 100644
index 000000000..af839145d
--- /dev/null
+++ b/test/test_suite7/switch/bad_ranges.c3
@@ -0,0 +1,22 @@
+module test;
+
+fn void! test1()
+{
+	double a;
+	switch (a)
+	{
+		case 1.3 .. 4.5: // #error: Ranges must be constant integers
+		default:
+    }
+}
+
+fn void! test2()
+{
+	int a;
+	switch (a)
+	{
+		case 2 .. 3:
+		case a .. 3: // #error: Ranges must be constant integers
+		default:
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/switch/enum_jump_switch_and_range.c3t b/test/test_suite7/switch/enum_jump_switch_and_range.c3t
new file mode 100644
index 000000000..6cb2f6f2b
--- /dev/null
+++ b/test/test_suite7/switch/enum_jump_switch_and_range.c3t
@@ -0,0 +1,503 @@
+// #target: macos-aarch64
+module test;
+import std;
+enum JumpTest		// :int  fails also
+{
+	ONE,
+	TWO,
+	THREE,
+}
+
+fn void second_test(JumpTest enu)
+{
+	switch (enu) @jump
+	{
+		case ONE..THREE: io::printn (".");
+	}
+}
+
+fn void third_test(int a)
+{
+	switch (a) @jump
+	{
+		case 1..3: io::printn (".");
+		case 9: io::printn ("..");
+	}
+}
+
+fn void main(String[] args)
+{
+	JumpTest enu = TWO;
+	switch (enu) @jump
+	{
+		case ONE: io::printn (".");
+		case TWO: io::printn ("..");
+		default : io::printn ("def");
+	}
+}
+
+/* #expect: test.ll
+
+
+@jumptable = private unnamed_addr constant [3 x ptr] [ptr blockaddress(@test.second_test, %switch.case), ptr blockaddress(@test.second_test, %switch.case), ptr blockaddress(@test.second_test, %switch.case)], align 4
+@jumptable.1 = private unnamed_addr constant [9 x ptr] [ptr blockaddress(@test.third_test, %switch.case), ptr blockaddress(@test.third_test, %switch.case), ptr blockaddress(@test.third_test, %switch.case), ptr blockaddress(@test.third_test, %switch.exit), ptr blockaddress(@test.third_test, %switch.exit), ptr blockaddress(@test.third_test, %switch.exit), ptr blockaddress(@test.third_test, %switch.exit), ptr blockaddress(@test.third_test, %switch.exit), ptr blockaddress(@test.third_test, %switch.case14)], align 4
+@jumptable.4 = private unnamed_addr constant [2 x ptr] [ptr blockaddress(@test.main, %switch.case), ptr blockaddress(@test.main, %switch.case14)], align 4
+
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = icmp ugt i32 %1, 2
+  br i1 %2, label %switch.exit, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable, i32 %1
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case]
+
+switch.case:                                      ; preds = %jumpblock
+  %3 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str, i64 1 }, ptr %taddr, align 8
+  %4 = load [2 x i64], ptr %taddr, align 8
+  %5 = call i64 @std.io.File.write(ptr %retparam, ptr %3, [2 x i64] %4)
+  %not_err = icmp eq i64 %5, 0
+  %6 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %6, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %switch.case
+  store i64 %5, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %switch.case
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %7 = load i64, ptr %retparam, align 8
+  store i64 %7, ptr %len, align 8
+  %8 = call i64 @std.io.File.write_byte(ptr %3, i8 10)
+  %not_err3 = icmp eq i64 %8, 0
+  %9 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %9, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %8, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %10 = call i64 @std.io.File.flush(ptr %3)
+  %not_err9 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %11, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %10, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %12 = load i64, ptr %len, align 8
+  %add = add i64 %12, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %voiderr, %switch.entry
+  ret void
+}
+
+define void @test.third_test(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %taddr = alloca %"char[]", align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %len15 = alloca i64, align 8
+  %error_var16 = alloca i64, align 8
+  %retparam18 = alloca i64, align 8
+  %taddr19 = alloca %"char[]", align 8
+  %error_var25 = alloca i64, align 8
+  %error_var31 = alloca i64, align 8
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = sub i32 %1, 1
+  %3 = icmp ugt i32 %2, 8
+  br i1 %3, label %switch.exit, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable.1, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case14, label %switch.exit]
+
+switch.case:                                      ; preds = %jumpblock
+  %4 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.2, i64 1 }, ptr %taddr, align 8
+  %5 = load [2 x i64], ptr %taddr, align 8
+  %6 = call i64 @std.io.File.write(ptr %retparam, ptr %4, [2 x i64] %5)
+  %not_err = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %switch.case
+  store i64 %6, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %switch.case
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %8 = load i64, ptr %retparam, align 8
+  store i64 %8, ptr %len, align 8
+  %9 = call i64 @std.io.File.write_byte(ptr %4, i8 10)
+  %not_err3 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %10, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %11 = call i64 @std.io.File.flush(ptr %4)
+  %not_err9 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %12, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %11, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %13 = load i64, ptr %len, align 8
+  %add = add i64 %13, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  br label %switch.exit
+
+switch.case14:                                    ; preds = %jumpblock
+  %14 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.3, i64 2 }, ptr %taddr19, align 8
+  %15 = load [2 x i64], ptr %taddr19, align 8
+  %16 = call i64 @std.io.File.write(ptr %retparam18, ptr %14, [2 x i64] %15)
+  %not_err20 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err20, i1 true)
+  br i1 %17, label %after_check22, label %assign_optional21
+
+assign_optional21:                                ; preds = %switch.case14
+  store i64 %16, ptr %error_var16, align 8
+  br label %guard_block23
+
+after_check22:                                    ; preds = %switch.case14
+  br label %noerr_block24
+
+guard_block23:                                    ; preds = %assign_optional21
+  br label %voiderr38
+
+noerr_block24:                                    ; preds = %after_check22
+  %18 = load i64, ptr %retparam18, align 8
+  store i64 %18, ptr %len15, align 8
+  %19 = call i64 @std.io.File.write_byte(ptr %14, i8 10)
+  %not_err26 = icmp eq i64 %19, 0
+  %20 = call i1 @llvm.expect.i1(i1 %not_err26, i1 true)
+  br i1 %20, label %after_check28, label %assign_optional27
+
+assign_optional27:                                ; preds = %noerr_block24
+  store i64 %19, ptr %error_var25, align 8
+  br label %guard_block29
+
+after_check28:                                    ; preds = %noerr_block24
+  br label %noerr_block30
+
+guard_block29:                                    ; preds = %assign_optional27
+  br label %voiderr38
+
+noerr_block30:                                    ; preds = %after_check28
+  %21 = call i64 @std.io.File.flush(ptr %14)
+  %not_err32 = icmp eq i64 %21, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err32, i1 true)
+  br i1 %22, label %after_check34, label %assign_optional33
+
+assign_optional33:                                ; preds = %noerr_block30
+  store i64 %21, ptr %error_var31, align 8
+  br label %guard_block35
+
+after_check34:                                    ; preds = %noerr_block30
+  br label %noerr_block36
+
+guard_block35:                                    ; preds = %assign_optional33
+  br label %voiderr38
+
+noerr_block36:                                    ; preds = %after_check34
+  %23 = load i64, ptr %len15, align 8
+  %add37 = add i64 %23, 1
+  br label %voiderr38
+
+voiderr38:                                        ; preds = %noerr_block36, %guard_block35, %guard_block29, %guard_block23
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %jumpblock, %voiderr38, %voiderr, %switch.entry
+  ret void
+}
+
+entry:
+  %args = alloca %"char[][]", align 8
+  %enu = alloca i32, align 4
+  %switch = alloca i32, align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %taddr = alloca %"char[]", align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %len15 = alloca i64, align 8
+  %error_var16 = alloca i64, align 8
+  %retparam18 = alloca i64, align 8
+  %taddr19 = alloca %"char[]", align 8
+  %error_var25 = alloca i64, align 8
+  %error_var31 = alloca i64, align 8
+  %len39 = alloca i64, align 8
+  %error_var40 = alloca i64, align 8
+  %retparam42 = alloca i64, align 8
+  %taddr43 = alloca %"char[]", align 8
+  %error_var49 = alloca i64, align 8
+  %error_var55 = alloca i64, align 8
+  store [2 x i64] %0, ptr %args, align 8
+  store i32 1, ptr %enu, align 4
+  %1 = load i32, ptr %enu, align 4
+  store i32 %1, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %2 = load i32, ptr %switch, align 4
+  %3 = icmp ugt i32 %2, 1
+  br i1 %3, label %switch.default, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable.4, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case14]
+
+switch.case:                                      ; preds = %jumpblock
+  %4 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.5, i64 1 }, ptr %taddr, align 8
+  %5 = load [2 x i64], ptr %taddr, align 8
+  %6 = call i64 @std.io.File.write(ptr %retparam, ptr %4, [2 x i64] %5)
+  %not_err = icmp eq i64 %6, 0
+  %7 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %7, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %switch.case
+  store i64 %6, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %switch.case
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %8 = load i64, ptr %retparam, align 8
+  store i64 %8, ptr %len, align 8
+  %9 = call i64 @std.io.File.write_byte(ptr %4, i8 10)
+  %not_err3 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %10, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %9, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %11 = call i64 @std.io.File.flush(ptr %4)
+  %not_err9 = icmp eq i64 %11, 0
+  %12 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %12, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %11, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %13 = load i64, ptr %len, align 8
+  %add = add i64 %13, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  br label %switch.exit
+
+switch.case14:                                    ; preds = %jumpblock
+  %14 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.6, i64 2 }, ptr %taddr19, align 8
+  %15 = load [2 x i64], ptr %taddr19, align 8
+  %16 = call i64 @std.io.File.write(ptr %retparam18, ptr %14, [2 x i64] %15)
+  %not_err20 = icmp eq i64 %16, 0
+  %17 = call i1 @llvm.expect.i1(i1 %not_err20, i1 true)
+  br i1 %17, label %after_check22, label %assign_optional21
+
+assign_optional21:                                ; preds = %switch.case14
+  store i64 %16, ptr %error_var16, align 8
+  br label %guard_block23
+
+after_check22:                                    ; preds = %switch.case14
+  br label %noerr_block24
+
+guard_block23:                                    ; preds = %assign_optional21
+  br label %voiderr38
+
+noerr_block24:                                    ; preds = %after_check22
+  %18 = load i64, ptr %retparam18, align 8
+  store i64 %18, ptr %len15, align 8
+  %19 = call i64 @std.io.File.write_byte(ptr %14, i8 10)
+  %not_err26 = icmp eq i64 %19, 0
+  %20 = call i1 @llvm.expect.i1(i1 %not_err26, i1 true)
+  br i1 %20, label %after_check28, label %assign_optional27
+
+assign_optional27:                                ; preds = %noerr_block24
+  store i64 %19, ptr %error_var25, align 8
+  br label %guard_block29
+
+after_check28:                                    ; preds = %noerr_block24
+  br label %noerr_block30
+
+guard_block29:                                    ; preds = %assign_optional27
+  br label %voiderr38
+
+noerr_block30:                                    ; preds = %after_check28
+  %21 = call i64 @std.io.File.flush(ptr %14)
+  %not_err32 = icmp eq i64 %21, 0
+  %22 = call i1 @llvm.expect.i1(i1 %not_err32, i1 true)
+  br i1 %22, label %after_check34, label %assign_optional33
+
+assign_optional33:                                ; preds = %noerr_block30
+  store i64 %21, ptr %error_var31, align 8
+  br label %guard_block35
+
+after_check34:                                    ; preds = %noerr_block30
+  br label %noerr_block36
+
+guard_block35:                                    ; preds = %assign_optional33
+  br label %voiderr38
+
+noerr_block36:                                    ; preds = %after_check34
+  %23 = load i64, ptr %len15, align 8
+  %add37 = add i64 %23, 1
+  br label %voiderr38
+
+voiderr38:                                        ; preds = %noerr_block36, %guard_block35, %guard_block29, %guard_block23
+  br label %switch.exit
+
+switch.default:                                   ; preds = %switch.entry
+  %24 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str.7, i64 3 }, ptr %taddr43, align 8
+  %25 = load [2 x i64], ptr %taddr43, align 8
+  %26 = call i64 @std.io.File.write(ptr %retparam42, ptr %24, [2 x i64] %25)
+  %not_err44 = icmp eq i64 %26, 0
+  %27 = call i1 @llvm.expect.i1(i1 %not_err44, i1 true)
+  br i1 %27, label %after_check46, label %assign_optional45
+
+assign_optional45:                                ; preds = %switch.default
+  store i64 %26, ptr %error_var40, align 8
+  br label %guard_block47
+
+after_check46:                                    ; preds = %switch.default
+  br label %noerr_block48
+
+guard_block47:                                    ; preds = %assign_optional45
+  br label %voiderr62
+
+noerr_block48:                                    ; preds = %after_check46
+  %28 = load i64, ptr %retparam42, align 8
+  store i64 %28, ptr %len39, align 8
+  %29 = call i64 @std.io.File.write_byte(ptr %24, i8 10)
+  %not_err50 = icmp eq i64 %29, 0
+  %30 = call i1 @llvm.expect.i1(i1 %not_err50, i1 true)
+  br i1 %30, label %after_check52, label %assign_optional51
+
+assign_optional51:                                ; preds = %noerr_block48
+  store i64 %29, ptr %error_var49, align 8
+  br label %guard_block53
+
+after_check52:                                    ; preds = %noerr_block48
+  br label %noerr_block54
+
+guard_block53:                                    ; preds = %assign_optional51
+  br label %voiderr62
+
+noerr_block54:                                    ; preds = %after_check52
+  %31 = call i64 @std.io.File.flush(ptr %24)
+  %not_err56 = icmp eq i64 %31, 0
+  %32 = call i1 @llvm.expect.i1(i1 %not_err56, i1 true)
+  br i1 %32, label %after_check58, label %assign_optional57
+
+assign_optional57:                                ; preds = %noerr_block54
+  store i64 %31, ptr %error_var55, align 8
+  br label %guard_block59
+
+after_check58:                                    ; preds = %noerr_block54
+  br label %noerr_block60
+
+guard_block59:                                    ; preds = %assign_optional57
+  br label %voiderr62
+
+noerr_block60:                                    ; preds = %after_check58
+  %33 = load i64, ptr %len39, align 8
+  %add61 = add i64 %33, 1
+  br label %voiderr62
+
+voiderr62:                                        ; preds = %noerr_block60, %guard_block59, %guard_block53, %guard_block47
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %voiderr62, %voiderr38, %voiderr
+  ret void
+}
+
diff --git a/test/test_suite7/switch/failable_switch.c3 b/test/test_suite7/switch/failable_switch.c3
new file mode 100644
index 000000000..52489999d
--- /dev/null
+++ b/test/test_suite7/switch/failable_switch.c3
@@ -0,0 +1,14 @@
+fault MyError
+{
+    FOO
+}
+
+fn void test()
+{
+    int x = 0;
+    switch (x)
+    {
+        case MyError.FOO? : // #error: 'int!' to 'int'
+            x = x + 1;
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/switch/jump_bug_nested.c3t b/test/test_suite7/switch/jump_bug_nested.c3t
new file mode 100644
index 000000000..125bc6e3f
--- /dev/null
+++ b/test/test_suite7/switch/jump_bug_nested.c3t
@@ -0,0 +1,139 @@
+// #target: macos-aarch64
+module test;
+import std;
+fn void main()
+{
+	switch (0) @jump
+	{
+		case 0:
+			foo();
+	}
+}
+
+
+macro void foo()
+{
+	io::printn("Inside Foo");
+	switch (1) @jump
+	{
+		case 2:
+			io::printfn("This should never happen");
+	}
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %switch = alloca i32, align 4
+  %len = alloca i64, align 8
+  %error_var = alloca i64, align 8
+  %retparam = alloca i64, align 8
+  %taddr = alloca %"char[]", align 8
+  %error_var2 = alloca i64, align 8
+  %error_var8 = alloca i64, align 8
+  %switch14 = alloca i32, align 4
+  %retparam20 = alloca i64, align 8
+  %taddr21 = alloca %"char[]", align 8
+  %taddr22 = alloca %"any[]", align 8
+  store i32 0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %0 = load i32, ptr %switch, align 4
+  %1 = icmp ugt i32 %0, 0
+  br i1 %1, label %switch.exit25, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable, i32 %0
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case]
+
+switch.case:                                      ; preds = %jumpblock
+  %2 = call ptr @std.io.stdout()
+  store %"char[]" { ptr @.str, i64 10 }, ptr %taddr, align 8
+  %3 = load [2 x i64], ptr %taddr, align 8
+  %4 = call i64 @std.io.File.write(ptr %retparam, ptr %2, [2 x i64] %3)
+  %not_err = icmp eq i64 %4, 0
+  %5 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %5, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %switch.case
+  store i64 %4, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %switch.case
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  br label %voiderr
+
+noerr_block:                                      ; preds = %after_check
+  %6 = load i64, ptr %retparam, align 8
+  store i64 %6, ptr %len, align 8
+  %7 = call i64 @std.io.File.write_byte(ptr %2, i8 10)
+  %not_err3 = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
+  br i1 %8, label %after_check5, label %assign_optional4
+
+assign_optional4:                                 ; preds = %noerr_block
+  store i64 %7, ptr %error_var2, align 8
+  br label %guard_block6
+
+after_check5:                                     ; preds = %noerr_block
+  br label %noerr_block7
+
+guard_block6:                                     ; preds = %assign_optional4
+  br label %voiderr
+
+noerr_block7:                                     ; preds = %after_check5
+  %9 = call i64 @std.io.File.flush(ptr %2)
+  %not_err9 = icmp eq i64 %9, 0
+  %10 = call i1 @llvm.expect.i1(i1 %not_err9, i1 true)
+  br i1 %10, label %after_check11, label %assign_optional10
+
+assign_optional10:                                ; preds = %noerr_block7
+  store i64 %9, ptr %error_var8, align 8
+  br label %guard_block12
+
+after_check11:                                    ; preds = %noerr_block7
+  br label %noerr_block13
+
+guard_block12:                                    ; preds = %assign_optional10
+  br label %voiderr
+
+noerr_block13:                                    ; preds = %after_check11
+  %11 = load i64, ptr %len, align 8
+  %add = add i64 %11, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block13, %guard_block12, %guard_block6, %guard_block
+  store i32 1, ptr %switch14, align 4
+  br label %switch.entry15
+
+switch.entry15:                                   ; preds = %voiderr
+  %12 = load i32, ptr %switch14, align 4
+  %13 = sub i32 %12, 2
+  %14 = icmp ugt i32 %13, 0
+  br i1 %14, label %switch.exit, label %jumpblock16
+
+jumpblock16:                                      ; preds = %switch.entry15
+  %ptroffset17 = getelementptr inbounds [8 x i8], ptr @jumptable.1, i32 %13
+  %target18 = load ptr, ptr %ptroffset17, align 8
+  indirectbr ptr %target18, [label %switch.case19]
+
+switch.case19:                                    ; preds = %jumpblock16
+  store %"char[]" { ptr @.str.2, i64 24 }, ptr %taddr21, align 8
+  %15 = load [2 x i64], ptr %taddr21, align 8
+  store %"any[]" zeroinitializer, ptr %taddr22, align 8
+  %16 = load [2 x i64], ptr %taddr22, align 8
+  %17 = call i64 @std.io.printfn(ptr %retparam20, [2 x i64] %15, [2 x i64] %16)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.case19, %switch.entry15
+  br label %switch.exit25
+
+switch.exit25:                                    ; preds = %switch.exit, %switch.entry
+  ret void
+}
+
diff --git a/test/test_suite7/switch/jump_bugs.c3t b/test/test_suite7/switch/jump_bugs.c3t
new file mode 100644
index 000000000..8947effc0
--- /dev/null
+++ b/test/test_suite7/switch/jump_bugs.c3t
@@ -0,0 +1,70 @@
+// #target: macos-aarch64
+module test;
+
+fn void test1()
+{
+	switch (0) @jump
+    {
+        case 0:
+            break;
+        default:
+	}
+}
+
+enum Foo { A, B, }
+
+fn void main()
+{
+	test1();
+	switch (Foo.A) @jump
+	{
+        default:
+			break;
+	}
+}
+
+/* #expect: test.ll
+
+@jumptable = private unnamed_addr constant [1 x ptr] [ptr blockaddress(@test.test1, %switch.case)], align 4
+
+define void @test.test1() #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %0 = load i32, ptr %switch, align 4
+  %1 = icmp ugt i32 %0, 0
+  br i1 %1, label %switch.exit, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable, i32 %0
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case]
+
+switch.case:                                      ; preds = %jumpblock
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.case, %switch.entry
+  ret void
+}
+
+define void @test.main() #0 {
+entry:
+  %switch = alloca i32, align 4
+  call void @test.test1()
+  store i32 0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %0 = load i32, ptr %switch, align 4
+  switch i32 %0, label %switch.default [
+  ]
+
+switch.default:                                   ; preds = %switch.entry
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default
+  ret void
+}
diff --git a/test/test_suite7/switch/jump_with_inc.c3t b/test/test_suite7/switch/jump_with_inc.c3t
new file mode 100644
index 000000000..ce8de6db7
--- /dev/null
+++ b/test/test_suite7/switch/jump_with_inc.c3t
@@ -0,0 +1,65 @@
+// #target: macos-aarch64
+module test;
+extern fn int b(int y);
+
+fn int foo(int x) @export
+{
+	switch (x) @jump
+	{
+		case 1:
+			nextcase (b(x));
+		case 0:
+			x++;
+			nextcase x;
+		default:
+			unreachable();
+	}
+}
+/* #expect: test.ll
+
+define i32 @test__foo(i32 %0) #0 {
+entry:
+  %x = alloca i32, align 4
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %x, align 4
+  %1 = load i32, ptr %x, align 4
+  store i32 %1, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %2 = load i32, ptr %switch, align 4
+  %3 = icmp ugt i32 %2, 1
+  br i1 %3, label %switch.default, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case4]
+
+switch.case:                                      ; preds = %jumpblock5, %jumpblock1, %jumpblock
+  %4 = load i32, ptr %x, align 4
+  %5 = call i32 @b(i32 %4)
+  %6 = icmp ugt i32 %5, 1
+  br i1 %6, label %switch.default, label %jumpblock1
+
+jumpblock1:                                       ; preds = %switch.case
+  %ptroffset2 = getelementptr inbounds [8 x i8], ptr @jumptable, i32 %5
+  %target3 = load ptr, ptr %ptroffset2, align 8
+  indirectbr ptr %target3, [label %switch.case, label %switch.case4, label %switch.default]
+
+switch.case4:                                     ; preds = %jumpblock5, %jumpblock, %jumpblock1
+  %7 = load i32, ptr %x, align 4
+  %add = add i32 %7, 1
+  store i32 %add, ptr %x, align 4
+  %8 = load i32, ptr %x, align 4
+  %9 = icmp ugt i32 %8, 1
+  br i1 %9, label %switch.default, label %jumpblock5
+
+jumpblock5:                                       ; preds = %switch.case4
+  %ptroffset6 = getelementptr inbounds [8 x i8], ptr @jumptable, i32 %8
+  %target7 = load ptr, ptr %ptroffset6, align 8
+  indirectbr ptr %target7, [label %switch.case, label %switch.case4, label %switch.default]
+
+switch.default:                                   ; preds = %jumpblock5, %switch.case4, %jumpblock1, %switch.case, %switch.entry
+  unreachable
+}
diff --git a/test/test_suite7/switch/simple_jump.c3t b/test/test_suite7/switch/simple_jump.c3t
new file mode 100644
index 000000000..883fcf557
--- /dev/null
+++ b/test/test_suite7/switch/simple_jump.c3t
@@ -0,0 +1,283 @@
+// #target: macos-x64
+import std::io;
+
+fn void res(int a)
+{
+	io::printn(a);
+}
+fn void test1(int a)
+{
+	switch (a) @jump
+	{
+		case 1: res(1);
+		case 0:
+		case 2: res(2);
+	}
+	res(0);
+}
+
+fn void test2(int a)
+{
+	switch (a) @jump
+	{
+		case 1: res(1);
+		case 2: res(2);
+	}
+}
+
+fn void test3(int a)
+{
+	switch (a) @jump
+	{
+		case 1: res(1);
+		case 3: res(3);
+	}
+}
+
+fn void test4(int a)
+{
+	switch (a) @jump
+	{
+		case 1: res(1);
+		default: res(-1);
+	}
+}
+
+fn void test5(int a)
+{
+	switch (a) @jump
+	{
+		case 1: res(1);
+		case 4: res(4);
+		default: res(-1);
+	}
+}
+
+fn void test6(int a)
+{
+	switch (a) @jump
+	{
+		case 1: res(1);
+		case 4: res(4);
+		case 5: nextcase(a * 2);
+		default: res(-1);
+	}
+}
+
+/* #expect: simple_jump.ll
+
+@jumptable = private unnamed_addr constant [3 x ptr] [ptr blockaddress(@simple_jump.test1, %switch.case1), ptr blockaddress(@simple_jump.test1, %switch.case), ptr blockaddress(@simple_jump.test1, %switch.case1)], align 4
+@jumptable.1 = private unnamed_addr constant [2 x ptr] [ptr blockaddress(@simple_jump.test2, %switch.case), ptr blockaddress(@simple_jump.test2, %switch.case1)], align 4
+@jumptable.2 = private unnamed_addr constant [3 x ptr] [ptr blockaddress(@simple_jump.test3, %switch.case), ptr blockaddress(@simple_jump.test3, %switch.exit), ptr blockaddress(@simple_jump.test3, %switch.case1)], align 4
+@jumptable.3 = private unnamed_addr constant [1 x ptr] [ptr blockaddress(@simple_jump.test4, %switch.case)], align 4
+@jumptable.4 = private unnamed_addr constant [4 x ptr] [ptr blockaddress(@simple_jump.test5, %switch.case), ptr blockaddress(@simple_jump.test5, %switch.default), ptr blockaddress(@simple_jump.test5, %switch.default), ptr blockaddress(@simple_jump.test5, %switch.case1)], align 4
+@jumptable.5 = private unnamed_addr constant [5 x ptr] [ptr blockaddress(@simple_jump.test6, %switch.case), ptr blockaddress(@simple_jump.test6, %switch.default), ptr blockaddress(@simple_jump.test6, %switch.default), ptr blockaddress(@simple_jump.test6, %switch.case1), ptr blockaddress(@simple_jump.test6, %switch.case2)], align 4
+
+after_check12:                                    ; preds = %noerr_block8
+  br label %noerr_block14
+
+guard_block13:                                    ; preds = %assign_optional11
+  br label %voiderr
+
+noerr_block14:                                    ; preds = %after_check12
+  %14 = load i64, ptr %len, align 8
+  %add = add i64 %14, 1
+  br label %voiderr
+
+voiderr:                                          ; preds = %noerr_block14, %guard_block13, %guard_block7, %guard_block
+  ret void
+}
+
+define void @simple_jump.test1(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = icmp ugt i32 %1, 2
+  br i1 %2, label %switch.exit, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable, i32 %1
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case1]
+
+switch.case:                                      ; preds = %jumpblock
+  call void @simple_jump.res(i32 1)
+  br label %switch.exit
+
+switch.case1:                                     ; preds = %jumpblock
+  call void @simple_jump.res(i32 2)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.case1, %switch.case, %switch.entry
+  call void @simple_jump.res(i32 0)
+  ret void
+}
+
+define void @simple_jump.test2(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = sub i32 %1, 1
+  %3 = icmp ugt i32 %2, 1
+  br i1 %3, label %switch.exit, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable.1, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case1]
+
+switch.case:                                      ; preds = %jumpblock
+  call void @simple_jump.res(i32 1)
+  br label %switch.exit
+
+switch.case1:                                     ; preds = %jumpblock
+  call void @simple_jump.res(i32 2)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.case1, %switch.case, %switch.entry
+  ret void
+}
+
+define void @simple_jump.test3(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = sub i32 %1, 1
+  %3 = icmp ugt i32 %2, 2
+  br i1 %3, label %switch.exit, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable.2, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case1, label %switch.exit]
+
+switch.case:                                      ; preds = %jumpblock
+  call void @simple_jump.res(i32 1)
+  br label %switch.exit
+
+switch.case1:                                     ; preds = %jumpblock
+  call void @simple_jump.res(i32 3)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %jumpblock, %switch.case1, %switch.case, %switch.entry
+  ret void
+}
+
+define void @simple_jump.test4(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = sub i32 %1, 1
+  %3 = icmp ugt i32 %2, 0
+  br i1 %3, label %switch.default, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable.3, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case]
+
+switch.case:                                      ; preds = %jumpblock
+  call void @simple_jump.res(i32 1)
+  br label %switch.exit
+
+switch.default:                                   ; preds = %switch.entry
+  call void @simple_jump.res(i32 -1)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case
+  ret void
+}
+
+define void @simple_jump.test5(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = sub i32 %1, 1
+  %3 = icmp ugt i32 %2, 3
+  br i1 %3, label %switch.default, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable.4, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case1, label %switch.default]
+
+switch.case:                                      ; preds = %jumpblock
+  call void @simple_jump.res(i32 1)
+  br label %switch.exit
+
+switch.case1:                                     ; preds = %jumpblock
+  call void @simple_jump.res(i32 4)
+  br label %switch.exit
+
+switch.default:                                   ; preds = %jumpblock, %switch.entry
+  call void @simple_jump.res(i32 -1)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case1, %switch.case
+  ret void
+}
+
+; Function Attrs: nounwind uwtable
+define void @simple_jump.test6(i32 %0) #0 {
+entry:
+  %switch = alloca i32, align 4
+  store i32 %0, ptr %switch, align 4
+  br label %switch.entry
+
+switch.entry:                                     ; preds = %entry
+  %1 = load i32, ptr %switch, align 4
+  %2 = sub i32 %1, 1
+  %3 = icmp ugt i32 %2, 4
+  br i1 %3, label %switch.default, label %jumpblock
+
+jumpblock:                                        ; preds = %switch.entry
+  %ptroffset = getelementptr inbounds [8 x i8], ptr @jumptable.5, i32 %2
+  %target = load ptr, ptr %ptroffset, align 8
+  indirectbr ptr %target, [label %switch.case, label %switch.case1, label %switch.case2, label %switch.default]
+
+switch.case:                                      ; preds = %jumpblock3, %jumpblock
+  call void @simple_jump.res(i32 1)
+  br label %switch.exit
+
+switch.case1:                                     ; preds = %jumpblock3, %jumpblock
+  call void @simple_jump.res(i32 4)
+  br label %switch.exit
+
+switch.case2:                                     ; preds = %jumpblock3, %jumpblock
+  %mul = mul i32 %0, 2
+  %4 = sub i32 %mul, 1
+  %5 = icmp ugt i32 %4, 4
+  br i1 %5, label %switch.default, label %jumpblock3
+
+jumpblock3:                                       ; preds = %switch.case2
+  %ptroffset4 = getelementptr inbounds [8 x i8], ptr @jumptable.5, i32 %4
+  %target5 = load ptr, ptr %ptroffset4, align 8
+  indirectbr ptr %target5, [label %switch.case, label %switch.case1, label %switch.case2, label %switch.default]
+
+switch.default:                                   ; preds = %jumpblock, %jumpblock3, %switch.case2, %switch.entry
+  call void @simple_jump.res(i32 -1)
+  br label %switch.exit
+
+switch.exit:                                      ; preds = %switch.default, %switch.case1, %switch.case
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/switch/switch_in_defer_macro.c3t b/test/test_suite7/switch/switch_in_defer_macro.c3t
new file mode 100644
index 000000000..0ed5f27bf
--- /dev/null
+++ b/test/test_suite7/switch/switch_in_defer_macro.c3t
@@ -0,0 +1,838 @@
+// #target: macos-x64
+
+<*
+ @require Token.kindof == ENUM && $typefrom(Token.inner).kindof == UNSIGNED_INT
+ @require $defined((Token){}.token)
+ @require $defined((Comment){}.start) && $defined((Comment){}.end)
+ *>
+module lexer {Token, Comment};
+import std::io;
+import trie;
+
+enum Kind : char
+{
+	UNKNOWN,
+	UINT,
+	STRING,
+	RUNE,
+	TOKEN,
+	IDENTIFIER,
+}
+
+fault LexerError
+{
+	UNTERMINATED_STRING,
+	UNTERMINATED_RUNE,
+	UNTERMINATED_COMMENT,
+}
+
+def TokenTrie = Trie{Token, ushort};
+
+def Ident = fn bool (usz index, char c);
+
+struct Lexer
+{
+	Allocator allocator;
+	InStream reader;
+	char[] buf;
+	TokenTrie tokens;
+	Ident ident;
+	bool peeked;
+	Kind kind;
+	uint line;
+	uint column;
+	uint span;
+	union
+	{
+		ulong x;       // UINT
+		String string; // STRING, IDENTIFIER
+		char rune;     // RUNE
+		Token token;   // TOKEN
+	}
+}
+
+fn void! Lexer.init(&self, InStream reader, Ident ident, Allocator using = mem)
+{
+	TokenTrie trie;
+	ushort max_token;
+	foreach (i, tok : Token.values)
+	{
+		String name = tok.token;
+		assert(name.len > 0 && name.len <= ushort.max);
+		trie.set(name, Token.from_ordinal(i))!;
+		max_token = max(max_token, (ushort)name.len);
+	}
+	foreach (tok : Comment.values)
+	{
+		String end = tok.end;
+		assert(end.len > 0 && end.len <= ushort.max);
+		max_token = max(max_token, (ushort)end.len);
+	}
+	char* buf = allocator::malloc_try(using, max_token)!;
+	*self = { .allocator = using, .reader = reader, .buf = buf[:max_token], .tokens = trie };
+}
+
+fn void! Lexer.free(&self)
+{
+	allocator::free(self.allocator, self.buf);
+	*self = {};
+}
+
+fn Kind! Lexer.next(&self)
+{
+	if (self.peeked)
+	{
+		self.peeked = false;
+		return self.kind;
+	}
+	char c = self.reader.read_byte()!;
+	switch
+	{
+		case c.is_digit():
+			self.reader.pushback_byte()!!;
+			self.x = self.parse_uint()!;
+			return UINT;
+		case c == '"':
+			self.string = self.parse_string(c)!;
+			return STRING;
+		case c == '\'':
+			self.rune = self.parse_rune()!;
+			return RUNE;
+	}
+	if (try tok = self.parse_token())
+	{
+		foreach (comment : Comment.values)
+		{
+			if (comment.start == tok)
+			{
+				self.parse_comment(comment.end)!;
+				break;
+			}
+		}
+		self.token = tok;
+		return TOKEN;
+	}
+	if (try tok = self.parse_ident())
+	{
+		self.string = tok;
+		return IDENTIFIER;
+	}
+
+	return UNKNOWN;
+}
+
+fn Kind! Lexer.peek(&self)
+{
+	if (!self.peeked)
+	{
+		self.kind = self.next()!;
+		self.peeked = true;
+	}
+	return self.kind;
+}
+
+fn Token! Lexer.expect(&self, anyfault err, Token... tokens)
+{
+	Kind kind = self.next()!;
+	if (kind == TOKEN)
+	{
+		foreach (tok : tokens)
+		{
+			if (tok == self.token) return tok;
+		}
+	}
+	return err?;
+}
+
+fn void! Lexer.skip_whitespace(&self) @private
+{
+	self.span = 0;
+	while (true)
+	{
+		char c = self.reader.read_byte()!;
+		if (!c.is_space())
+		{
+			self.reader.pushback_byte()!!;
+			return;
+		}
+		if (c == '\n')
+		{
+			self.line++;
+			self.column = 0;
+		}
+		else
+		{
+			self.column++;
+		}
+	}
+}
+
+fn ulong! Lexer.parse_uint(&self) @private
+{
+	ulong x;
+	char c = self.reader.read_byte()!;
+	if (c == '0')
+	{
+		c = self.reader.read_byte()!;
+		switch (c)
+		{
+			case 'x':
+				self.span = 2;
+				return self.parse_hexadecimal()!;
+			case 'b':
+				self.span = 2;
+				return self.parse_binary()!;
+			case 'o':
+				self.span = 2;
+				return self.parse_octal()!;
+		}
+	}
+	self.span = 0;
+	return self.parse_decimal()!;
+}
+
+fn ulong! Lexer.parse_decimal(&self) @private
+{
+	return @parse_uint(self, ulong; ulong x, char c, bool ok)
+	{
+		if (c.is_digit())
+		{
+			x = x * 10 + (ulong)(c - '0');
+			ok = true;
+		}
+	};
+}
+
+fn ulong! Lexer.parse_hexadecimal(&self) @private
+{
+	return @parse_uint(self, ulong; ulong x, char c, bool ok)
+	{
+		switch
+		{
+			case c.is_digit():
+				x = x * 10 + (ulong)(c - '0');
+				ok = true;
+			case c.is_xdigit():
+				c -= c < 'A' ? 'a' : 'A';
+				x = x * 16 + (ulong)c;
+				ok = true;
+		}
+	};
+}
+
+fn ulong! Lexer.parse_binary(&self) @private
+{
+	return @parse_uint(self, ulong; ulong x, char c, bool ok)
+	{
+		if (c.is_digit())
+		{
+			x = x * 2 + (ulong)(c - '0');
+			ok = true;
+		}
+	};
+}
+
+fn ulong! Lexer.parse_octal(&self) @private
+{
+	return @parse_uint(self, ulong; ulong x, char c, bool ok)
+	{
+		if (c.is_odigit())
+		{
+			x = x * 8 + (ulong)(c - '0');
+			ok = true;
+		}
+	};
+}
+
+macro @parse_uint(self, $Type; @body(x, c, ok)) @private
+{
+	$Type x;
+	uint column = self.column;
+	while (true)
+	{
+		char! c = self.reader.read_byte();
+		if (catch err = c)
+		{
+			case IoError.EOF:
+				break;
+			default:
+				return err?;
+		}
+		else
+		{
+			self.column++;
+			if (c == '_') continue;
+			$Type xx = x;
+			bool ok;
+			@body(x, c, ok);
+			if (xx > x) return NumberConversion.INTEGER_OVERFLOW?;
+			if (!ok)
+			{
+				self.column--;
+				self.reader.pushback_byte()!!;
+				break;
+			}
+		}
+	}
+	self.span = self.column - column;
+	return x;
+}
+
+fn String! Lexer.parse_string(&self, char quote) @private
+{
+	char c = self.read_char_for_string()!;
+	if (c == quote) return "";
+	DString str;
+	str.new_init(8, self.allocator);
+	char prev;
+	while (true)
+	{
+		c = self.read_char_for_string()!;
+		if (prev != '\\')
+		{
+			str.append_char(prev);
+			if (c == quote)
+			{
+				self.span = (uint)str.len();
+				self.column += self.span + 2;
+				return str.str_view();
+			}
+			prev = c;
+			continue;
+		}
+		prev = c;
+		switch (c)
+		{
+			case 'a':
+			case 'b':
+			case '\\':
+			case '\n':
+			case '\f':
+			case '\r':
+			case '\v':
+			case '"':
+			case '\'':
+				break;
+			default: c = '\\';
+		}
+		str.append_char(c);
+	}
+}
+
+fn char! Lexer.parse_rune(&self) @private
+{
+	char x = self.reader.read_byte()!;
+	char c = self.reader.read_byte()!;
+	if (c != '\'') return LexerError.UNTERMINATED_RUNE?;
+	return x;
+}
+
+macro char! Lexer.read_char_for_string(&self) @private
+{
+	char! c = self.reader.read_byte();
+	if (catch err = c)
+	{
+		case IoError.EOF:
+			return LexerError.UNTERMINATED_STRING?;
+		default:
+			return err?;
+	}
+	return c;
+}
+
+fn Token! Lexer.parse_token(&self) @private
+{
+	usz n = self.reader.read(self.buf)!;
+	defer self.unread(n);
+	Token tok = self.tokens.get_best(self.buf[:n])!;
+	n = self.buf.len - tok.token.len;
+	return tok;
+}
+
+fn void! Lexer.parse_comment(&self, String end) @private
+{
+	// Find the end token and accumulate the data in between.
+	DString acc;
+	acc.new_init(8, self.allocator);
+	char[] buf = self.buf[:end.len];
+	while (true)
+	{
+		if (catch err = io::read_all(self.reader, buf))
+		{
+			case IoError.UNEXPECTED_EOF:
+			case IoError.EOF:
+				return LexerError.UNTERMINATED_COMMENT?;
+			default:
+				return err?;
+		}
+		if (end == (String)buf)
+		{
+			self.string = acc.str_view();
+			return;
+		}
+		acc.append_char(buf[0]);
+		self.unread(buf.len - 1);
+	}
+}
+
+macro Lexer.unread(self, n) @private
+{
+	switch
+	{
+		case n == 1:
+			self.reader.pushback_byte()!!;
+		case n > 1:
+			if (&self.reader.seek)
+			{
+				self.reader.seek(-n, CURSOR)!!;
+				break;
+			}
+			for (; n > 0; n--) self.reader.pushback_byte()!!;
+	}
+}
+
+fn String! Lexer.parse_ident(&self) @private
+{
+	DString str;
+	str.new_init(8, self.allocator);
+	while (true)
+	{
+		char! c = self.reader.read_byte();
+		if (catch err = c)
+		{
+			case IoError.EOF:
+				return str.str_view();
+			default:
+				return err?;
+		}
+		if (!self.ident(str.len(), c)) return str.str_view();
+		str.append_char(c);
+	}
+}
+
+module lexer_test;
+import lexer;
+import std::io;
+
+def Lexer = Lexer{Token, Comment};
+def Kind = Kind{Token, Comment};
+
+enum Token : char (String token)
+{
+	KEYWORD1 = "keword1",
+	KEYWORD2 = "keyword2",
+	SINGLE   = "//",
+	MULTI    = "/*",
+}
+
+enum Comment : char (Token start, String end)
+{
+	SINGLE = { SINGLE, "\n" },
+	MULTI  = { MULTI, "*/" },
+}
+
+fn bool is_ident_char(usz i, char c)
+{
+	return (i == 0 && c.is_alpha()) || (i > 0 && c.is_alnum());
+}
+
+struct UintTest
+{
+	String in;
+	ulong out;
+}
+
+fn void! lex_uint()
+{
+	UintTest[] tcases = {};
+	foreach (tc : tcases)
+	{
+		ByteReader br;
+		Lexer lex;
+		lex.init(br.init((char[])tc.in), &is_ident_char)!;
+
+		Kind kind = lex.next()!;
+		assert(kind == UINT, "got %s; want %s", kind, Kind.UINT);
+	}
+}
+module lexer2;
+import std::io;
+
+fn int main(String[] args)
+{
+	io::printn("Hello, World!");
+	return 0;
+}
+<*
+ @require Index.kindof == TypeKind.UNSIGNED_INT
+ *>
+module trie{Value, Index};
+import std::collections::list;
+import trie::bitmap;
+
+def TrieNodeList = List{TrieNode};
+def TriePath = List{Index} @private;
+
+fault TrieError
+{
+	TRIE_FULL,
+}
+
+struct Trie
+{
+	TrieNodeList nodes;
+}
+
+struct TrieNode
+{
+	Index[256] children;
+	Value value;
+	bool valid;
+}
+
+fn void Trie.init(&self, usz initial_capacity = 8, Allocator using = allocator::heap())
+{
+	*self = {};
+	self.nodes.init(using, initial_capacity);
+	self.nodes.push((TrieNode){});
+}
+
+<*
+ @require self.nodes.len() > 0
+ *>
+fn Value! Trie.get(&self, char[] key)
+{
+	return self.nodes[0].get(self, key);
+}
+
+<*
+  @require self.nodes.len() > 0
+ *>
+fn Value! Trie.get_best(&self, char[] key)
+{
+	TrieNode* root = &self.nodes[0];
+	if (key.len == 0) return root.valid ? root.value : SearchResult.MISSING?;
+	return root.get_best(self, key, 0);
+}
+
+<*
+ @require self.nodes.len() > 0
+ *>
+fn void! Trie.set(&self, char[] key, Value value)
+{
+	self.nodes[0].set(self, key, value)!!;
+}
+
+<*
+ @require self.nodes.len() > 0
+ *>
+fn void! Trie.del(&self, char[] key)
+{
+	if (key.len == 0)
+	{
+		Value zero;
+		(&self.nodes[0]).valid = false;
+		return;
+	}
+	TriePath path;
+	path.init(self.nodes.allocator, 8);
+	defer path.free();
+	path.push(0);
+	self.nodes[0].del(self, key, path)!;
+}
+
+fn Value! TrieNode.get(&self, Trie *t, char[] key) @private
+{
+	if (key.len == 0) return self.valid ? self.value : SearchResult.MISSING?;
+	char c = key[0];
+	Index idx = self.children[c];
+	if (idx == 0) return SearchResult.MISSING?;
+	return t.nodes[idx].get(t, key[1..]);
+}
+
+fn Value! TrieNode.get_best(&self, Trie *t, char[] key, Index result) @private
+{
+	if (key.len == 0)
+	{
+		if (result == 0) return SearchResult.MISSING?;
+		return t.nodes[result].value;
+	}
+	char c = key[0];
+	Index idx = self.children[c];
+	if (idx == 0)
+	{
+		if (result == 0) return SearchResult.MISSING?;
+		return t.nodes[result].value;
+	}
+	TrieNode* next = &t.nodes[idx];
+	if (next.valid) result = idx;
+	return next.get_best(t, key[1..], result);
+}
+
+fn void! TrieNode.set(&self, Trie *t, char[] key, Value value) @private
+{
+	if (key.len == 0)
+	{
+		self.value = value;
+		self.valid = true;
+		return;
+	}
+	char c = key[0];
+	Index idx = self.children[c];
+	if (idx == 0)
+	{
+		usz new_idx = t.nodes.len();
+		assert(new_idx != 0);
+		if (new_idx > Index.max) return TrieError.TRIE_FULL?;
+		idx = (Index)new_idx;
+		self.children[c] = idx;
+		t.nodes.push((TrieNode){});
+	}
+	t.nodes[idx].set(t, key[1..], value)!;
+}
+
+fn void! TrieNode.del(&self, Trie* t, char[] key, TriePath path) @private
+{
+	if (key.len > 0)
+	{
+		char c = key[0];
+		Index idx = self.children[c];
+		if (idx != 0)
+		{
+			path.push(idx);
+			t.nodes[idx].del(t, key[1..], path)!;
+		}
+		return;
+	}
+	Index current = path.pop()!;
+	for (isz i = path.len() - 1; i >= 0; i--)
+	{
+		Index parent = path[i];
+		bool is_empty = true;
+		TrieNode* node = &t.nodes[parent];
+		foreach (j, p : node.children)
+		{
+			if (p == current)
+			{
+				node.children[j] = 0;
+				(&t.nodes[p]).valid = false;
+			}
+			is_empty = is_empty && node.children[j] == 0;
+		}
+		if (!is_empty) break;
+	}
+}
+
+module trie::bitmap @private;
+
+struct Bitmap
+{
+	ulong[4] data;
+}
+
+fn bool Bitmap.get(&self, char x)
+{
+	char i = x & 0b11;
+	char j = 1 << (x >> 2);
+	return self.data[i] & j != 0;
+}
+
+fn void Bitmap.set(&self, char x)
+{
+	char i = x & 0b11;
+	char j = 1 << (x >> 2);
+	self.data[i] |= j;
+}
+
+fn bool Bitmap.is_empty(&self)
+{
+	return self.data[0] == 0 && self.data[1] == 0 && self.data[2] == 0 && self.data[3] == 0;
+}
+module trie_test;
+import trie;
+
+def Trie = Trie{String, char};
+
+fn void test()
+{
+	Trie t;
+	t.init();
+	String! v = t.get("a");
+	if (try v) unreachable("key 'a' should not exist");
+	if (catch t.set("a", "va")) unreachable("key 'a' not added");
+	String w = t.get("a")!!;
+	assert(w == "va");
+
+	if (catch t.set("hello world", "hi")) unreachable("key not added");
+	w = t.get("hello world")!!;
+	assert(w == "hi");
+	if (try invalid = t.get("hello")) unreachable("key 'hello' should not exist");
+
+	if (catch t.set("hello", "hoi")) unreachable("key not added");
+	String ww = t.get("hello")!!;
+	assert(ww == "hoi");
+	ww = t.get_best("hello world")!!;
+	assert(ww == "hi");
+
+	t.del("a")!!;
+	String! x = t.get("a");
+	if (try x) unreachable("key 'a' should not exist");
+}
+
+/* #expect: lexer_test.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%"char[]" = type { ptr, i64 }
+%any = type { ptr, i64 }
+%"UintTest[]" = type { ptr, i64 }
+%UintTest = type { %"char[]", i64 }
+%ByteReader = type { %"char[]", i64 }
+%Lexer = type { %any, %any, %"char[]", %Trie, ptr, i8, i8, i32, i32, i32, %.anon }
+%Trie = type { %List }
+%List = type { i64, i64, %any, ptr }
+%.anon = type { %"char[]" }
+
+@"$ct.lexer_test.UintTest" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 24, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@.enum.KEYWORD1 = internal constant [9 x i8] c"KEYWORD1\00", align 1
+@.enum.KEYWORD2 = internal constant [9 x i8] c"KEYWORD2\00", align 1
+@.enum.SINGLE = internal constant [7 x i8] c"SINGLE\00", align 1
+@.enum.MULTI = internal constant [6 x i8] c"MULTI\00", align 1
+@"$ct.char" = linkonce global %.introspect { i8 3, i64 0, ptr null, i64 1, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.lexer_test.Token" = linkonce global { i8, i64, ptr, i64, i64, i64, [4 x %"char[]"] } { i8 8, i64 0, ptr null, i64 1, i64 ptrtoint (ptr @"$ct.char" to i64), i64 4, [4 x %"char[]"] [%"char[]" { ptr @.enum.KEYWORD1, i64 8 }, %"char[]" { ptr @.enum.KEYWORD2, i64 8 }, %"char[]" { ptr @.enum.SINGLE, i64 6 }, %"char[]" { ptr @.enum.MULTI, i64 5 }] }, align 8
+@.str = private unnamed_addr constant [8 x i8] c"keword1\00", align 1
+@.str.1 = private unnamed_addr constant [9 x i8] c"keyword2\00", align 1
+@.str.2 = private unnamed_addr constant [3 x i8] c"//\00", align 1
+@.str.3 = private unnamed_addr constant [3 x i8] c"/*\00", align 1
+@"lexer_test.Token$token" = linkonce constant [4 x %"char[]"] [%"char[]" { ptr @.str, i64 7 }, %"char[]" { ptr @.str.1, i64 8 }, %"char[]" { ptr @.str.2, i64 2 }, %"char[]" { ptr @.str.3, i64 2 }], align 8
+@"$ct.lexer_test.Comment" = linkonce global { i8, i64, ptr, i64, i64, i64, [2 x %"char[]"] } { i8 8, i64 0, ptr null, i64 1, i64 ptrtoint (ptr @"$ct.char" to i64), i64 2, [2 x %"char[]"] [%"char[]" { ptr @.enum.SINGLE, i64 6 }, %"char[]" { ptr @.enum.MULTI, i64 5 }] }, align 8
+@"lexer_test.Comment$start" = linkonce constant [2 x i8] c"\02\03", align 1
+@.str.4 = private unnamed_addr constant [2 x i8] c"\0A\00", align 1
+@.str.5 = private unnamed_addr constant [3 x i8] c"*/\00", align 1
+@"lexer_test.Comment$end" = linkonce constant [2 x %"char[]"] [%"char[]" { ptr @.str.4, i64 1 }, %"char[]" { ptr @.str.5, i64 2 }], align 8
+@"$ct.std.io.ByteReader" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 24, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@std.core.mem.allocator.thread_allocator = extern_weak thread_local global %any, align 8
+
+; Function Attrs:
+define zeroext i8 @lexer_test.is_ident_char(i64 %0, i8 zeroext %1) #0 {
+entry:
+  %eq = icmp eq i64 0, %0
+  br i1 %eq, label %and.rhs, label %and.phi
+
+and.rhs:                                          ; preds = %entry
+  %2 = call i8 @std.ascii.char.is_alpha(i8 zeroext %1)
+  %3 = trunc i8 %2 to i1
+  br label %and.phi
+
+and.phi:                                          ; preds = %and.rhs, %entry
+  %val = phi i1 [ false, %entry ], [ %3, %and.rhs ]
+  br i1 %val, label %or.phi, label %or.rhs
+
+or.rhs:                                           ; preds = %and.phi
+  %lt = icmp ult i64 0, %0
+  br i1 %lt, label %and.rhs1, label %and.phi2
+
+and.rhs1:                                         ; preds = %or.rhs
+  %4 = call i8 @std.ascii.char.is_alnum(i8 zeroext %1)
+  %5 = trunc i8 %4 to i1
+  br label %and.phi2
+
+and.phi2:                                         ; preds = %and.rhs1, %or.rhs
+  %val3 = phi i1 [ false, %or.rhs ], [ %5, %and.rhs1 ]
+  br label %or.phi
+
+or.phi:                                           ; preds = %and.phi2, %and.phi
+  %val4 = phi i1 [ true, %and.phi ], [ %val3, %and.phi2 ]
+  %6 = zext i1 %val4 to i8
+  ret i8 %6
+}
+
+; Function Attrs:
+define i64 @lexer_test.lex_uint() #0 {
+entry:
+  %tcases = alloca %"UintTest[]", align 8
+  %.anon = alloca i64, align 8
+  %tc = alloca %UintTest, align 8
+  %br = alloca %ByteReader, align 8
+  %lex = alloca %Lexer, align 8
+  %error_var = alloca i64, align 8
+  %taddr = alloca %any, align 8
+  %kind = alloca i8, align 1
+  %error_var7 = alloca i64, align 8
+  %retparam = alloca i8, align 1
+  store %"UintTest[]" zeroinitializer, ptr %tcases, align 8
+  %ptradd = getelementptr inbounds i8, ptr %tcases, i64 8
+  %0 = load i64, ptr %ptradd, align 8
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %noerr_block12, %entry
+  %1 = load i64, ptr %.anon, align 8
+  %lt = icmp ult i64 %1, %0
+  br i1 %lt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %2 = load ptr, ptr %tcases, align 8
+  %3 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [24 x i8], ptr %2, i64 %3
+  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %tc, ptr align 8 %ptroffset, i32 24, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %br, i8 0, i64 24, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %lex, i8 0, i64 128, i1 false)
+  %lo = load ptr, ptr %tc, align 8
+  %ptradd1 = getelementptr inbounds i8, ptr %tc, i64 8
+  %hi = load i64, ptr %ptradd1, align 8
+  %4 = call ptr @std.io.ByteReader.init(ptr %br, ptr %lo, i64 %hi)
+  %5 = insertvalue %any undef, ptr %4, 0
+  %6 = insertvalue %any %5, i64 ptrtoint (ptr @"$ct.std.io.ByteReader" to i64), 1
+  store %any %6, ptr %taddr, align 8
+  %lo2 = load i64, ptr %taddr, align 8
+  %ptradd3 = getelementptr inbounds i8, ptr %taddr, i64 8
+  %hi4 = load ptr, ptr %ptradd3, align 8
+  %lo5 = load i64, ptr @std.core.mem.allocator.thread_allocator, align 8
+  %hi6 = load ptr, ptr getelementptr inbounds (i8, ptr @std.core.mem.allocator.thread_allocator, i64 8), align 8
+  %7 = call i64 @"lexer$lexer_test.Token$lexer_test.Comment$.Lexer.init"(ptr %lex, i64 %lo2, ptr %hi4, ptr @lexer_test.is_ident_char, i64 %lo5, ptr %hi6)
+  %not_err = icmp eq i64 %7, 0
+  %8 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
+  br i1 %8, label %after_check, label %assign_optional
+
+assign_optional:                                  ; preds = %loop.body
+  store i64 %7, ptr %error_var, align 8
+  br label %guard_block
+
+after_check:                                      ; preds = %loop.body
+  br label %noerr_block
+
+guard_block:                                      ; preds = %assign_optional
+  %9 = load i64, ptr %error_var, align 8
+  ret i64 %9
+
+noerr_block:                                      ; preds = %after_check
+  %10 = call i64 @"lexer$lexer_test.Token$lexer_test.Comment$.Lexer.next"(ptr %retparam, ptr %lex)
+  %not_err8 = icmp eq i64 %10, 0
+  %11 = call i1 @llvm.expect.i1(i1 %not_err8, i1 true)
+  br i1 %11, label %after_check10, label %assign_optional9
+
+assign_optional9:                                 ; preds = %noerr_block
+  store i64 %10, ptr %error_var7, align 8
+  br label %guard_block11
+
+after_check10:                                    ; preds = %noerr_block
+  br label %noerr_block12
+
+guard_block11:                                    ; preds = %assign_optional9
+  %12 = load i64, ptr %error_var7, align 8
+  ret i64 %12
+
+noerr_block12:                                    ; preds = %after_check10
+  %13 = load i8, ptr %retparam, align 1
+  store i8 %13, ptr %kind, align 1
+  %14 = load i8, ptr %kind, align 1
+  %eq = icmp eq i8 %14, 1
+  call void @llvm.assume(i1 %eq)
+  %15 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %15, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  ret i64 0
+}
diff --git a/test/test_suite7/symbols/allow_local_shadowing.c3 b/test/test_suite7/symbols/allow_local_shadowing.c3
new file mode 100644
index 000000000..802eaf090
--- /dev/null
+++ b/test/test_suite7/symbols/allow_local_shadowing.c3
@@ -0,0 +1,10 @@
+int foo;
+
+fn void x()
+{
+	double foo = 123;
+}
+
+fn void y(int foo)
+{
+}
\ No newline at end of file
diff --git a/test/test_suite7/symbols/shadow_struct.c3 b/test/test_suite7/symbols/shadow_struct.c3
new file mode 100644
index 000000000..a9cb4b10b
--- /dev/null
+++ b/test/test_suite7/symbols/shadow_struct.c3
@@ -0,0 +1,15 @@
+struct Foo
+{
+    Foo *x;
+    int y;
+}
+
+def Foo = float; // #error: shadow a previous declaration
+
+enum Bar
+{
+    TEST1,
+    TEST2
+}
+
+def Bar = float; // #error: shadow a previous declaration
\ No newline at end of file
diff --git a/test/test_suite7/symbols/various.c3 b/test/test_suite7/symbols/various.c3
new file mode 100644
index 000000000..1218be130
--- /dev/null
+++ b/test/test_suite7/symbols/various.c3
@@ -0,0 +1,189 @@
+module test;
+
+fn void test1()
+{
+    char a = 1;
+    int b = 2;
+    char c = b > a ? 1 : 0;
+}
+
+fn void test2()
+{
+    char a = 1;
+    char b = 2;
+    char c = a + b;
+}
+
+fn void test3()
+{
+    ichar a = 1;
+    int b = 2;
+    ichar c = a + b; // #error: 'ichar'
+}
+
+fn void test4()
+{
+    char a = 1;
+    char b = 2;
+    int c = a + b;
+}
+
+fn void test5()
+{
+    char a = 1;
+    int b = 2;
+    int c = a + b;
+}
+
+
+fn void test6()
+{
+    char a = 1;
+    char b = 2;
+    char c = (b > a) ? 1 : 0 + a + b;
+}
+
+fn void test7()
+{
+    int[100] array = { };
+    int v = array[1];
+}
+
+def Number = int;
+
+fn void test8()
+{
+    Number a = 10;
+    ichar c = a;         // #error: 'Number' (int)
+}
+
+
+fn void test9()
+{
+    const char A = 1;
+    char b = A;
+    A = b;              // #error: You cannot assign to a constant
+}
+
+fn void test10()
+{
+    const char B = 1;
+    char* c = &B;
+    const A = 1;
+    char* b = &A;       // #error: either type it or use && to take the reference to a temporary
+}
+
+enum Enum : int
+{
+    A,
+    B,
+}
+
+fn void test11()
+{
+    int a = Enum.A; // #error: It is not possible to cast
+    ichar b = Enum.B; // #error: It is not possible to cast
+}
+
+fn void test12()
+{
+    float f = 3.14;
+    ichar a = f;         // #error: 'ichar'
+}
+
+fn void test13()
+{
+    int a = 1;
+    ichar b = a;         // #error: 'ichar'
+}
+
+fn void test14()
+{
+    char a = 1;
+    ichar b = a;
+}
+
+fn void test15()
+{
+    float f = 3.14;
+    ichar c = 1;
+    ichar* a = &f;       // #error: 'float*' to 'ichar*'
+    ichar* b = &c;
+}
+
+fn void test16()
+{
+    float f = 3.14;
+    int i = 1;
+
+    ichar c = 1 ? 'c' : 'd';
+    ichar d = 1 ? 'c' : i;
+    ichar e = 1 ? i : 0;         // #error: 'ichar'
+    int g = 1 ? i : f;          // #error: 'float'
+    int a = f ? 1 : 0;
+}
+
+fn void test17()
+{
+    int a = "test";             // #error: 'String' to 'int'
+}
+
+fn void test18()
+{
+    char b = 1;
+    int a = b;
+}
+
+fn void test19()
+{
+    uint a = 1;
+    int b = a;
+}
+
+/*
+const i32 Num = 200;
+
+fn void test1() {
+    i8 a = test.Num;  // @error{constant value 200 out-of-bounds for type 'i8', range [-128, 127]}
+}*/
+
+fn void test21()
+{
+    int a = 1;
+    uint b = a;
+}
+
+fn void foo() {}
+
+fn void test22()
+{
+    ichar a = foo();             // #error: 'void' to 'ichar'
+    short b = foo();            // #error: 'void' to 'short'
+    int c = foo();              // #error: 'void' to 'int'
+    long d = foo();             // #error: 'void' to 'long'
+    char e = foo();             // #error: 'void' to 'char'
+    ushort f = foo();           // #error: 'void' to 'ushort'
+    uint g = foo();             // #error: 'void' to 'uint'
+    ulong h = foo();            // #error: 'void' to 'ulong'
+    bool i = foo();             // #error: 'void' to 'bool'
+}
+
+
+int num = 10;
+
+fn void test23()
+{
+    int a = num;
+    int b = test::num;
+    char c = test::num;         // #error: 'char'
+}
+
+int[2][3] b123;
+
+fn void test24()
+{
+    int a = b123;  // #error: 'int[2][3]' to 'int'
+}
+
+
+
diff --git a/test/test_suite7/types/enum_illegal_type.c3 b/test/test_suite7/types/enum_illegal_type.c3
new file mode 100644
index 000000000..0c2a2610a
--- /dev/null
+++ b/test/test_suite7/types/enum_illegal_type.c3
@@ -0,0 +1,9 @@
+enum EnumTestErrorType : float // #error: must be an integer type not 'float'
+{
+    VALUE_BOOM
+}
+
+enum EnumWithErrorType2 : int* // #error: must be an integer type not 'int*'
+{
+    TEST
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/enum_implicit_overflow.c3 b/test/test_suite7/types/enum_implicit_overflow.c3
new file mode 100644
index 000000000..aa64a25ae
--- /dev/null
+++ b/test/test_suite7/types/enum_implicit_overflow.c3
@@ -0,0 +1,136 @@
+enum Foo : ichar
+{
+	MY_VAL0,
+    MY_VAL1,
+    MY_VAL2,
+    MY_VAL3,
+    MY_VAL4,
+    MY_VAL5,
+    MY_VAL6,
+    MY_VAL7,
+    MY_VAL8,
+    MY_VAL9,
+    MY_VAL10,
+    MY_VAL11,
+    MY_VAL12,
+    MY_VAL13,
+    MY_VAL14,
+    MY_VAL15,
+    MY_VAL16,
+    MY_VAL17,
+    MY_VAL18,
+    MY_VAL19,
+    MY_VAL20,
+    MY_VAL21,
+    MY_VAL22,
+    MY_VAL23,
+    MY_VAL24,
+    MY_VAL25,
+    MY_VAL26,
+    MY_VAL27,
+    MY_VAL28,
+    MY_VAL29,
+    MY_VAL30,
+    MY_VAL31,
+    MY_VAL32,
+    MY_VAL33,
+    MY_VAL34,
+    MY_VAL35,
+    MY_VAL36,
+    MY_VAL37,
+    MY_VAL38,
+    MY_VAL39,
+    MY_VAL40,
+    MY_VAL41,
+    MY_VAL42,
+    MY_VAL43,
+    MY_VAL44,
+    MY_VAL45,
+    MY_VAL46,
+    MY_VAL47,
+    MY_VAL48,
+    MY_VAL49,
+    MY_VAL50,
+    MY_VAL51,
+    MY_VAL52,
+    MY_VAL53,
+    MY_VAL54,
+    MY_VAL55,
+    MY_VAL56,
+    MY_VAL57,
+    MY_VAL58,
+    MY_VAL59,
+    MY_VAL60,
+    MY_VAL61,
+    MY_VAL62,
+    MY_VAL63,
+    MY_VAL64,
+    MY_VAL65,
+    MY_VAL66,
+    MY_VAL67,
+    MY_VAL68,
+    MY_VAL69,
+    MY_VAL70,
+    MY_VAL71,
+    MY_VAL72,
+    MY_VAL73,
+    MY_VAL74,
+    MY_VAL75,
+    MY_VAL76,
+    MY_VAL77,
+    MY_VAL78,
+    MY_VAL79,
+    MY_VAL80,
+    MY_VAL81,
+    MY_VAL82,
+    MY_VAL83,
+    MY_VAL84,
+    MY_VAL85,
+    MY_VAL86,
+    MY_VAL87,
+    MY_VAL88,
+    MY_VAL89,
+    MY_VAL90,
+    MY_VAL91,
+    MY_VAL92,
+    MY_VAL93,
+    MY_VAL94,
+    MY_VAL95,
+    MY_VAL96,
+    MY_VAL97,
+    MY_VAL98,
+    MY_VAL99,
+    MY_VAL100,
+    MY_VAL101,
+    MY_VAL102,
+    MY_VAL103,
+    MY_VAL104,
+    MY_VAL105,
+    MY_VAL106,
+    MY_VAL107,
+    MY_VAL108,
+    MY_VAL109,
+    MY_VAL110,
+    MY_VAL111,
+    MY_VAL112,
+    MY_VAL113,
+    MY_VAL114,
+    MY_VAL115,
+    MY_VAL116,
+    MY_VAL117,
+    MY_VAL118,
+    MY_VAL119,
+    MY_VAL120,
+    MY_VAL121,
+    MY_VAL122,
+    MY_VAL123,
+    MY_VAL124,
+    MY_VAL125,
+    MY_VAL126,
+    MY_VAL127,
+    MY_VAL128, // #error: The enum value would implicitly be 128 which does not fit in 'ichar'
+    MY_VAL129,
+
+
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/enum_inference.c3 b/test/test_suite7/types/enum_inference.c3
new file mode 100644
index 000000000..880e1b90d
--- /dev/null
+++ b/test/test_suite7/types/enum_inference.c3
@@ -0,0 +1,43 @@
+
+enum Inf
+{
+    A,
+    B,
+    C
+}
+
+enum Inf2 : char
+{
+    A,
+    B,
+    C,
+}
+
+def BooInf = Inf;
+
+
+fn void enumInferenceTest()
+{
+    Inf x = Inf.A;
+    x = BooInf.B;
+    x = A;
+    int x1 = 0;
+    bool y = x1 == x1;
+    Inf2 z = C;
+    if (z == Inf2.A) return;
+    if (z == Inf2.from_ordinal(1)) return;
+    z = Inf2.from_ordinal(2);
+    switch (z)
+    {
+        case Inf2.A:
+            x1++;
+            return;
+        case B:
+            return;
+        case Inf2.from_ordinal(2):
+            x1 += 1;
+            return;
+        default:
+            return;
+    }
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/enum_ok.c3 b/test/test_suite7/types/enum_ok.c3
new file mode 100644
index 000000000..c75c8c005
--- /dev/null
+++ b/test/test_suite7/types/enum_ok.c3
@@ -0,0 +1,35 @@
+enum EnumTest : long
+{
+    VALUE1,
+    VALUE2
+}
+
+def Frob = long;
+
+enum EnumTestAlias : Frob
+{
+    VALUE1,
+    VALUE2
+}
+
+enum EnumTestDefault
+{
+    VALUE,
+    VALUE2
+}
+
+
+enum EnumWithErrorData2 : int (int bar,)
+{
+    TEST // #error: associated value
+}
+
+enum EnumTestErrorType4
+{
+}
+
+enum EnumTest5
+{
+    B,
+    C,
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/enum_param.c3 b/test/test_suite7/types/enum_param.c3
new file mode 100644
index 000000000..f369a64ed
--- /dev/null
+++ b/test/test_suite7/types/enum_param.c3
@@ -0,0 +1,12 @@
+enum Foo
+{
+    A, B
+}
+
+fn void test(Foo f)
+{}
+
+fn void test2()
+{
+    test(Foo.A);
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/enum_parse_errors.c3 b/test/test_suite7/types/enum_parse_errors.c3
new file mode 100644
index 000000000..2284bfd6c
--- /dev/null
+++ b/test/test_suite7/types/enum_parse_errors.c3
@@ -0,0 +1,22 @@
+
+enum EnumWithErrorWithMissingName : (int)  // #error: Expected a member name here
+{
+    TEST
+}
+
+enum EnumWithErrorData : ( int
+,{ // #error: Expected a member name here
+    TEST
+}
+
+enum EnumWithErrorData2 :  ( int, int bar ) // #error: Expected a member name here
+{
+    TEST
+}
+
+
+enum EnumTestErrorType3 : int
+{
+    A,
+    A // #error: This enum constant is declared twice
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/illegal_array_size_constant.c3 b/test/test_suite7/types/illegal_array_size_constant.c3
new file mode 100644
index 000000000..d4785c7ad
--- /dev/null
+++ b/test/test_suite7/types/illegal_array_size_constant.c3
@@ -0,0 +1,12 @@
+module testing;
+
+struct Foo
+{
+	Entry[1 << N] data; // #error: 'N' could not be found
+}
+
+struct Entry
+{
+    String key;
+    String value;
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/non_rec_fn.c3 b/test/test_suite7/types/non_rec_fn.c3
new file mode 100644
index 000000000..8e65c8a12
--- /dev/null
+++ b/test/test_suite7/types/non_rec_fn.c3
@@ -0,0 +1,11 @@
+
+def BlahFn = fn int(Foo f);
+def FooFn = fn int(Foo f, int j);
+struct Foo
+{
+    BlahFn x;
+    FooFn okf;
+}
+
+
+Foo g;
\ No newline at end of file
diff --git a/test/test_suite7/types/recursive_array.c3 b/test/test_suite7/types/recursive_array.c3
new file mode 100644
index 000000000..199a6c013
--- /dev/null
+++ b/test/test_suite7/types/recursive_array.c3
@@ -0,0 +1,4 @@
+struct Qq
+{
+  Qq[3]* a;
+}
\ No newline at end of file
diff --git a/test/test_suite7/types/recursive_fn.c3 b/test/test_suite7/types/recursive_fn.c3
new file mode 100644
index 000000000..9e2bb1b17
--- /dev/null
+++ b/test/test_suite7/types/recursive_fn.c3
@@ -0,0 +1 @@
+def BlahFn = fn int(BlahFn f); // #error: Recursive definition of 'BlahFn'
\ No newline at end of file
diff --git a/test/test_suite7/types/recursive_typedef.c3 b/test/test_suite7/types/recursive_typedef.c3
new file mode 100644
index 000000000..07ee1ab76
--- /dev/null
+++ b/test/test_suite7/types/recursive_typedef.c3
@@ -0,0 +1,9 @@
+def Number2 = Number1; // #error: Recursive definition of 'Number2'
+def Number1 = Number2;
+
+def Number = Number; // #error: Recursive definition of 'Number'
+
+
+def Loop2 = Loop; // #error: Recursive definition of 'Loop2'
+def Loop3 = Loop2;
+def Loop = Loop3;
diff --git a/test/test_suite7/types/redefinition.c3 b/test/test_suite7/types/redefinition.c3
new file mode 100644
index 000000000..b17fe2247
--- /dev/null
+++ b/test/test_suite7/types/redefinition.c3
@@ -0,0 +1,2 @@
+def Number = int;
+def Number = uint;         // #error: 'Number' would shadow a previous declaration.
\ No newline at end of file
diff --git a/test/test_suite7/types/typedefs.c3 b/test/test_suite7/types/typedefs.c3
new file mode 100644
index 000000000..8e293f9bb
--- /dev/null
+++ b/test/test_suite7/types/typedefs.c3
@@ -0,0 +1,11 @@
+def Arr = int[4];
+
+Arr a = { 3, 4, 5, 6 };
+
+fn void test1()
+{
+    Arr b = { 3, 4, 5, 6 };
+    int c = b;              // #error: 'Arr' (int[4]) to 'int'
+    int d = a;              // #error: 'Arr' (int[4]) to 'int'
+}
+
diff --git a/test/test_suite7/types/various.c3 b/test/test_suite7/types/various.c3
new file mode 100644
index 000000000..00026afe8
--- /dev/null
+++ b/test/test_suite7/types/various.c3
@@ -0,0 +1,5 @@
+func1 a = 1;    // #error: The name of a type
+
+fn void func1() {}
+
+uint b = -1;
\ No newline at end of file
diff --git a/test/test_suite7/unicode/commenting-out.c3 b/test/test_suite7/unicode/commenting-out.c3
new file mode 100644
index 000000000..2c9a908db
--- /dev/null
+++ b/test/test_suite7/unicode/commenting-out.c3
@@ -0,0 +1,10 @@
+// #error: Invalid encoding - Unbalanced bidirectional markers.
+int main() {
+    bool isAdmin = false;
+    /*‮ } ⁦if (isAdmin)⁩ ⁦ begin admins only */
+        printf("You are an admin.\n");
+    /* end admins only ‮ { ⁦*/
+    return 0;
+}
+
+
diff --git a/test/test_suite7/union/designated_union_zeroing.c3t b/test/test_suite7/union/designated_union_zeroing.c3t
new file mode 100644
index 000000000..1b3fdf78b
--- /dev/null
+++ b/test/test_suite7/union/designated_union_zeroing.c3t
@@ -0,0 +1,33 @@
+// #target: macos-x64
+module test;
+union Rect {
+  struct { float[<2>] min, max; }
+}
+
+fn Rect test_rect(float[<2>] max) {
+  Rect rect = {.max = max};
+  assert(rect.min == {});
+  return rect;
+}
+
+/* #expect: test.ll
+
+%Rect = type { %.anon }
+%.anon = type { <2 x float>, <2 x float> }
+
+define { double, double } @test.test_rect(double %0) #0 {
+entry:
+  %max = alloca <2 x float>, align 8
+  %rect = alloca %Rect, align 8
+  store double %0, ptr %max, align 8
+  call void @llvm.memset.p0.i64(ptr align 8 %rect, i8 0, i64 16, i1 false)
+  %ptradd = getelementptr inbounds i8, ptr %rect, i64 8
+  %1 = load <2 x float>, ptr %max, align 8
+  store <2 x float> %1, ptr %ptradd, align 8
+  %2 = load <2 x float>, ptr %rect, align 8
+  %eq = fcmp oeq <2 x float> %2, zeroinitializer
+  %3 = call i1 @llvm.vector.reduce.and.v2i1(<2 x i1> %eq)
+  call void @llvm.assume(i1 %3)
+  %4 = load { double, double }, ptr %rect, align 8
+  ret { double, double } %4
+}
diff --git a/test/test_suite7/union/flexible_array_union.c3 b/test/test_suite7/union/flexible_array_union.c3
new file mode 100644
index 000000000..1cb6e05a9
--- /dev/null
+++ b/test/test_suite7/union/flexible_array_union.c3
@@ -0,0 +1,5 @@
+union Zee
+{
+    int z;
+    int[?] y; // #error: Flexible array members not allowed in unions.
+}
\ No newline at end of file
diff --git a/test/test_suite7/union/inferred_size_vector.c3 b/test/test_suite7/union/inferred_size_vector.c3
new file mode 100644
index 000000000..2adce22bd
--- /dev/null
+++ b/test/test_suite7/union/inferred_size_vector.c3
@@ -0,0 +1,4 @@
+union Foo
+{
+	int[<?>] x; // #error:  Inferred vector types can only
+}
diff --git a/test/test_suite7/union/test_unions.c3 b/test/test_suite7/union/test_unions.c3
new file mode 100644
index 000000000..8f465442b
--- /dev/null
+++ b/test/test_suite7/union/test_unions.c3
@@ -0,0 +1,28 @@
+module test;
+
+union Qu
+{
+    Qu *x;
+}
+
+union Xe
+{
+  char c;
+  int a, z;
+  long b;
+  void *b1;
+  struct qu
+  {
+    int a;
+    long z;
+  }
+}
+
+fn Xe foo(Xe a)
+{
+  a.c = 123;
+  a.a = 39249;
+  a.b = 12301230123123i64;
+  a.z = 1;
+  return a;
+}
\ No newline at end of file
diff --git a/test/test_suite7/union/union_codegen_const.c3t b/test/test_suite7/union/union_codegen_const.c3t
new file mode 100644
index 000000000..7aeb313ca
--- /dev/null
+++ b/test/test_suite7/union/union_codegen_const.c3t
@@ -0,0 +1,20 @@
+// #target: macos-x64
+module test;
+
+union Foo
+{
+    int a;
+    double b;
+}
+
+Foo f @private = { .a = 23 };
+Foo g @private = { .b = 2.3 };
+Foo h @private = { .a = 23, .b = 2.3 };
+Foo i = { .b = 2.3, .a = 23 };
+
+/* #expect: test.ll
+
+@test.f = internal unnamed_addr global { i32, [4 x i8] } { i32 23, [4 x i8] undef }, align 8
+@test.g = internal unnamed_addr global %Foo { double 2.300000e+00 }, align 8
+@test.h = internal unnamed_addr global %Foo { double 2.300000e+00 }, align 8
+@test.i = local_unnamed_addr global { i32, [4 x i8] } { i32 23, [4 x i8] undef }, align 8
diff --git a/test/test_suite7/union/union_codegen_empty.c3t b/test/test_suite7/union/union_codegen_empty.c3t
new file mode 100644
index 000000000..9e86916b1
--- /dev/null
+++ b/test/test_suite7/union/union_codegen_empty.c3t
@@ -0,0 +1,45 @@
+// #target: macos-x64
+union UnionA
+{
+    int a;
+}
+
+union UnionB
+{
+    struct b
+    {
+        int a;
+    }
+    int c;
+    double d;
+}
+
+fn void test()
+{
+    UnionA a = {};
+    UnionA a2;
+    UnionB b = {};
+    UnionB b2;
+    UnionB b3 = { .b = {} };
+    UnionB b4 = { .b.a = 23, .c = 4, .d = 0.4, .b = {} };
+}
+
+/* #expect: union_codegen_empty.ll
+
+source_filena
+define void @union_codegen_empty.test() #0 {
+entry:
+  %a = alloca %UnionA, align 4
+  %a2 = alloca %UnionA, align 4
+  %b = alloca %UnionB, align 8
+  %b2 = alloca %UnionB, align 8
+  %b3 = alloca %UnionB, align 8
+  %b4 = alloca %UnionB, align 8
+  store i32 0, ptr %a, align 4
+  store i32 0, ptr %a2, align 4
+  call void @llvm.memset.p0.i64(ptr align 8 %b, i8 0, i64 8, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %b2, i8 0, i64 8, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %b3, i8 0, i64 8, i1 false)
+  call void @llvm.memset.p0.i64(ptr align 8 %b4, i8 0, i64 8, i1 false)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/union/union_codegen_overwrite_call.c3t b/test/test_suite7/union/union_codegen_overwrite_call.c3t
new file mode 100644
index 000000000..91ebc0ebb
--- /dev/null
+++ b/test/test_suite7/union/union_codegen_overwrite_call.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module test;
+
+union UnionB
+{
+    struct b
+    {
+        int a;
+    }
+    int c;
+    double d;
+}
+
+extern fn int bar();
+
+fn void test()
+{
+    UnionB b = { .c = bar(), .b = {} };
+}
+
+/* #expect: test.ll
+
+define void @test.test() #0 {
+entry:
+  %b = alloca %UnionB, align 8
+  %0 = call i32 @bar()
+  store i32 %0, ptr %b, align 8
+  store i32 0, ptr %b, align 8
+  ret void
+}
diff --git a/test/test_suite7/union/union_in_struct.c3t b/test/test_suite7/union/union_in_struct.c3t
new file mode 100644
index 000000000..2380eb4b8
--- /dev/null
+++ b/test/test_suite7/union/union_in_struct.c3t
@@ -0,0 +1,45 @@
+// #target: macos-x64
+module test;
+
+struct Foo
+{
+    char c;
+    union {
+        int a;
+        double b;
+    }
+    int z;
+}
+
+Foo foo1 = { .a = 3, .z = 4 };
+Foo foo2 = { .b = 3, .z = 4 };
+
+struct Blend_Map_Entry
+{
+  union vals {
+   float[5] colour;
+   double[2] point_Slope;
+  }
+}
+
+Blend_Map_Entry a = { .vals = { .colour = { 1, 2, 3, 4, 5 } } };
+Blend_Map_Entry b = { .vals = { .point_Slope = { 6, 7 } } };
+Blend_Map_Entry c = { .vals.colour[2] = 1 };
+Blend_Map_Entry d = { .vals.colour = { 1, 2, 3, 4, 5 } };
+
+fn void test(Blend_Map_Entry* foo)
+{
+}
+
+/* #expect: test.ll
+
+
+%Blend_Map_Entry = type { %vals }
+%vals = type { [2 x double], [8 x i8] }
+
+@test.foo1 = local_unnamed_addr global { i8, [4 x i8], { i32, [4 x i8] }, i32 } { i8 0, [4 x i8] undef, { i32, [4 x i8] } { i32 3, [4 x i8] undef }, i32 4 }, align 8
+@test.foo2 = local_unnamed_addr global %Foo { i8 0, %.anon { double 3.000000e+00 }, i32 4 }, align 8
+@test.a = local_unnamed_addr global { { [5 x float], [4 x i8] } } { { [5 x float], [4 x i8] } { [5 x float] [float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00, float 5.000000e+00], [4 x i8] undef } }, align 8
+@test.b = local_unnamed_addr global %Blend_Map_Entry { %vals { [2 x double] [double 6.000000e+00, double 7.000000e+00], [8 x i8] undef } }, align 8
+@test.c = local_unnamed_addr global { { { [2 x float], float, [2 x float] }, [4 x i8] } } { { { [2 x float], float, [2 x float] }, [4 x i8] } { { [2 x float], float, [2 x float] } { [2 x float] zeroinitializer, float 1.000000e+00, [2 x float] zeroinitializer }, [4 x i8] undef } }, align 8
+@test.d = local_unnamed_addr global { { [5 x float], [4 x i8] } } { { [5 x float], [4 x i8] } { [5 x float] [float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00, float 5.000000e+00], [4 x i8] undef } }, align 8
diff --git a/test/test_suite7/union/union_member_voidcast.c3 b/test/test_suite7/union/union_member_voidcast.c3
new file mode 100644
index 000000000..aeea25047
--- /dev/null
+++ b/test/test_suite7/union/union_member_voidcast.c3
@@ -0,0 +1,13 @@
+module test;
+
+union Xu
+{
+    void *b;
+}
+
+fn Xu foo()
+{
+    Xu a;
+    a.b = (void*)(123);
+    return a;
+}
\ No newline at end of file
diff --git a/test/test_suite7/union/union_zero.c3 b/test/test_suite7/union/union_zero.c3
new file mode 100644
index 000000000..a56f039de
--- /dev/null
+++ b/test/test_suite7/union/union_zero.c3
@@ -0,0 +1,3 @@
+union Abs // #error: Zero sized unions
+{
+}
\ No newline at end of file
diff --git a/test/test_suite7/variables/const_in_func.c3t b/test/test_suite7/variables/const_in_func.c3t
new file mode 100644
index 000000000..fadc81f34
--- /dev/null
+++ b/test/test_suite7/variables/const_in_func.c3t
@@ -0,0 +1,19 @@
+// #target: linux-x64
+module scratch;
+import std::test;
+fn void main()
+{
+	int x = test::abc();
+}
+
+module std::test;
+
+macro abc()
+{
+	const int A = 256;
+	return A;
+}
+
+/* #expect: scratch.ll
+
+@main.A = internal local_unnamed_addr constant i32 256, align 4
\ No newline at end of file
diff --git a/test/test_suite7/variables/consts.c3 b/test/test_suite7/variables/consts.c3
new file mode 100644
index 000000000..a571906b7
--- /dev/null
+++ b/test/test_suite7/variables/consts.c3
@@ -0,0 +1,7 @@
+const int foo = 3; // #error: must be all uppercase
+
+fn void foo(int i)
+{
+    const int x = i; // #error: must be all uppercase
+    const int Y = i;
+}
\ No newline at end of file
diff --git a/test/test_suite7/variables/static_in_macro.c3t b/test/test_suite7/variables/static_in_macro.c3t
new file mode 100644
index 000000000..7de212799
--- /dev/null
+++ b/test/test_suite7/variables/static_in_macro.c3t
@@ -0,0 +1,76 @@
+// #target: macos-x64
+module test;
+import asdf;
+import foo;
+import std::io;
+
+fn int main(String[] args) {
+  bar();
+  bar2();
+  foo::bar();
+  foo::bar2();
+  return 0;
+}
+
+fn void bar() {
+  asdf::get_static();
+}
+
+fn void* bar2() {
+  return asdf::get_static_ref();
+}
+
+module foo;
+import asdf;
+import std::io;
+
+// Same function name
+fn void bar() {
+  asdf::get_static();
+}
+
+fn void* bar2() {
+  return asdf::get_static_ref();
+}
+
+module asdf;
+
+macro get_static() {
+  static char x;
+  return x;
+}
+
+macro get_static_ref() {
+	static char x;
+	return &x;
+}
+
+/* #expect: foo.ll
+
+@bar.x = internal local_unnamed_addr global i8 0, align 1
+@bar2.x = internal global i8 0, align 1
+
+define void @foo.bar() #0 {
+entry:
+  ret void
+}
+
+define ptr @foo.bar2() #0 {
+entry:
+  ret ptr @bar2.x
+}
+
+// #expect: test.ll
+
+@bar.x = internal local_unnamed_addr global i8 0, align 1
+@bar2.x = internal global i8 0, align 1
+
+define void @test.bar() #0 {
+entry:
+  ret void
+}
+
+define ptr @test.bar2() #0 {
+entry:
+  ret ptr @bar2.x
+}
diff --git a/test/test_suite7/variables/var_init.c3t b/test/test_suite7/variables/var_init.c3t
new file mode 100644
index 000000000..0e0b6dae9
--- /dev/null
+++ b/test/test_suite7/variables/var_init.c3t
@@ -0,0 +1,26 @@
+module test;
+
+struct Abc
+{
+	int[100] x;
+}
+
+
+fn void main()
+{
+	int z @noinit;
+    Abc y @noinit;
+    int x;
+    Abc w;
+}
+
+/* #expect: test.ll
+
+entry:
+  %z = alloca i32, align 4
+  %y = alloca %Abc, align 4
+  %x = alloca i32, align 4
+  %w = alloca %Abc, align 4
+  store i32 0, ptr %x, align 4
+  call void @llvm.memset.p0.i64(ptr align 4 %w, i8 0, i64 400, i1 false)
+  ret void
diff --git a/test/test_suite7/variables/var_init_multi.c3t b/test/test_suite7/variables/var_init_multi.c3t
new file mode 100644
index 000000000..595f5a311
--- /dev/null
+++ b/test/test_suite7/variables/var_init_multi.c3t
@@ -0,0 +1,28 @@
+// #target: macos-x64
+module test;
+fn int main()
+{
+	static int sx, sy;
+	tlocal int tx, ty;
+	int x, y;
+	int* z, w @noinit @align(16);
+	return x;
+}
+
+/* #expect: test.ll
+
+@main.sx = internal unnamed_addr global i32 0, align 4
+@main.sy = internal unnamed_addr global i32 0, align 4
+@main.tx = internal thread_local(localdynamic) unnamed_addr global i32 0, align 4
+@main.ty = internal thread_local(localdynamic) unnamed_addr global i32 0, align 4
+
+entry:
+  %x = alloca i32, align 4
+  %y = alloca i32, align 4
+  %z = alloca ptr, align 16
+  %w = alloca ptr, align 16
+  store i32 0, ptr %x, align 4
+  store i32 0, ptr %y, align 4
+  %0 = load i32, ptr %x, align 4
+  ret i32 %0
+}
diff --git a/test/test_suite7/vector/gather_scatter.c3t b/test/test_suite7/vector/gather_scatter.c3t
new file mode 100644
index 000000000..f4868ae16
--- /dev/null
+++ b/test/test_suite7/vector/gather_scatter.c3t
@@ -0,0 +1,30 @@
+// #target: macos-x64
+module foo;
+
+fn void main()
+{
+	int[5] a = { 1, 2, 3, 4, 5 };
+	void*[<2>] x = { &a[0], &a[4] };
+	int*[<2>] y = x;
+	int[<2>] result = mem::@gather_aligned(y, (bool[<2>]) { true, false }, (int[<2>]){ 10, 20 }, 4);
+	assert(result == { 1, 20});
+	result = mem::gather(y, (bool[<2>]) { true, false }, (int[<2>]){ 10, 20 });
+	assert(result == { 1, 20});
+	mem::@scatter_aligned(y, (int[<2>]){ 66, 77 }, (bool[<2>]) { false, true } , 4);
+	assert(a == (int[5]){ 1, 2, 3, 4, 77});
+	mem::scatter(y, (int[<2>]){ 88, 99 }, (bool[<2>]) { true, false });
+	assert(a == (int[5]){ 88, 2, 3, 4, 77});
+}
+
+/* #expect: foo.ll
+
+  %4 = load <2 x ptr>, ptr %ptrvec, align 16
+  %5 = call <2 x i32> @llvm.masked.gather.v2i32.v2p0(<2 x ptr> %4, i32 4, <2 x i1> <i1 true, i1 false>, <2 x i32> <i32 10, i32 20>)
+
+  %9 = load <2 x ptr>, ptr %ptrvec1, align 16
+  %10 = call <2 x i32> @llvm.masked.gather.v2i32.v2p0(<2 x ptr> %9, i32 4, <2 x i1> <i1 true, i1 false>, <2 x i32> <i32 10, i32 20>)
+
+  %14 = load <2 x ptr>, ptr %ptrvec3, align 16
+  call void @llvm.masked.scatter.v2i32.v2p0(<2 x i32> <i32 66, i32 77>, <2 x ptr> %14, i32 4, <2 x i1> <i1 false, i1 true>)
+  %16 = load <2 x ptr>, ptr %ptrvec5, align 16
+  call void @llvm.masked.scatter.v2i32.v2p0(<2 x i32> <i32 88, i32 99>, <2 x ptr> %16, i32 4, <2 x i1> <i1 true, i1 false>)
diff --git a/test/test_suite7/vector/swizzle_vector_ref.c3t b/test/test_suite7/vector/swizzle_vector_ref.c3t
new file mode 100644
index 000000000..f8c9f5fc4
--- /dev/null
+++ b/test/test_suite7/vector/swizzle_vector_ref.c3t
@@ -0,0 +1,27 @@
+// #target: macos-x64
+module foo;
+
+import std;
+fn int main()
+{
+  int[<2>] vec;
+  int* a = &vec.x;
+  *a = 1;
+  assert(vec.x == 1);
+  return 0;
+}
+
+/* #expect: foo.ll
+
+  %vec = alloca <2 x i32>, align 8
+  %a = alloca ptr, align 8
+  store <2 x i32> zeroinitializer, ptr %vec, align 8
+  store ptr %vec, ptr %a, align 8
+  %0 = load ptr, ptr %a, align 8
+  store i32 1, ptr %0, align 4
+  %1 = load <2 x i32>, ptr %vec, align 8
+  %2 = extractelement <2 x i32> %1, i64 0
+  %eq = icmp eq i32 %2, 1
+  call void @llvm.assume(i1 %eq)
+  ret i32 0
+}
diff --git a/test/test_suite7/vector/swizzling.c3 b/test/test_suite7/vector/swizzling.c3
new file mode 100644
index 000000000..e7b4c72b4
--- /dev/null
+++ b/test/test_suite7/vector/swizzling.c3
@@ -0,0 +1,22 @@
+// #target: macos-x64
+
+fn void! swizzle_test()
+{
+	int[<4>] abc = { 1, 2, 3, 4 };
+	int[<3>] z = abc.rbx; // #error: Mixing
+	int[<2>] gh;
+	int[<2>] uh = gh.xz; // #error: component is not present
+
+}
+
+
+
+fn int main()
+{
+  int[<2>] $test = {3, 3};
+  int[<2>] $test2 = {4, 4};
+  $if ($test2.x != $test.x):
+  y++; // #error: did you spell it
+  $endif
+  return 0;
+}
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_bit.c3t b/test/test_suite7/vector/vector_bit.c3t
new file mode 100644
index 000000000..8a4e4577e
--- /dev/null
+++ b/test/test_suite7/vector/vector_bit.c3t
@@ -0,0 +1,153 @@
+// #target: macos-x64
+
+import libc;
+
+fn void testf()
+{
+    float[<4>] y = { 0, 2, 3, 0 };
+    int[<4>] w = !y;
+    libc::printf("Notf %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+}
+
+fn void testi()
+{
+    int[<4>] y = { 1, 2, 3, 4 };
+    int[<4>] z = { 2, 3, 13, -100 };
+    int[<4>] w;
+    w = y & z;
+    libc::printf("And %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+    w = y | z;
+    libc::printf("Or %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+    w = y ^ z;
+    libc::printf("Xor %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+    w = ~y;
+    libc::printf("BitNeg %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+    w = -y;
+    libc::printf("Neg %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+    w = !y;
+    w = { -1, 13, 0, 0 };
+    w = !w;
+    libc::printf("Not %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+}
+
+fn void main()
+{
+    testf();
+    testi();
+}
+
+/* #expect: vector_bit.ll
+
+define void @vector_bit.testf() #0 {
+entry:
+  %y = alloca <4 x float>, align 16
+  %w = alloca <4 x i32>, align 16
+  store <4 x float> <float 0.000000e+00, float 2.000000e+00, float 3.000000e+00, float 0.000000e+00>, ptr %y, align 16
+  %0 = load <4 x float>, ptr %y, align 16
+  %not = fcmp ueq <4 x float> %0, zeroinitializer
+  %1 = sext <4 x i1> %not to <4 x i32>
+  store <4 x i32> %1, ptr %w, align 16
+  %2 = load <4 x i32>, ptr %w, align 16
+  %3 = extractelement <4 x i32> %2, i64 0
+  %4 = load <4 x i32>, ptr %w, align 16
+  %5 = extractelement <4 x i32> %4, i64 1
+  %6 = load <4 x i32>, ptr %w, align 16
+  %7 = extractelement <4 x i32> %6, i64 2
+  %8 = load <4 x i32>, ptr %w, align 16
+  %9 = extractelement <4 x i32> %8, i64 3
+  %10 = call i32 (ptr, ...) @printf(ptr @.str, i32 %3, i32 %5, i32 %7, i32 %9)
+  ret void
+}
+
+
+define void @vector_bit.testi() #0 {
+entry:
+  %y = alloca <4 x i32>, align 16
+  %z = alloca <4 x i32>, align 16
+  %w = alloca <4 x i32>, align 16
+  store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %y, align 16
+  store <4 x i32> <i32 2, i32 3, i32 13, i32 -100>, ptr %z, align 16
+  store <4 x i32> zeroinitializer, ptr %w, align 16
+  %0 = load <4 x i32>, ptr %y, align 16
+  %1 = load <4 x i32>, ptr %z, align 16
+  %and = and <4 x i32> %0, %1
+  store <4 x i32> %and, ptr %w, align 16
+  %2 = load <4 x i32>, ptr %w, align 16
+  %3 = extractelement <4 x i32> %2, i64 0
+  %4 = load <4 x i32>, ptr %w, align 16
+  %5 = extractelement <4 x i32> %4, i64 1
+  %6 = load <4 x i32>, ptr %w, align 16
+  %7 = extractelement <4 x i32> %6, i64 2
+  %8 = load <4 x i32>, ptr %w, align 16
+  %9 = extractelement <4 x i32> %8, i64 3
+  %10 = call i32 (ptr, ...) @printf(ptr @.str.1, i32 %3, i32 %5, i32 %7, i32 %9)
+  %11 = load <4 x i32>, ptr %y, align 16
+  %12 = load <4 x i32>, ptr %z, align 16
+  %or = or <4 x i32> %11, %12
+  store <4 x i32> %or, ptr %w, align 16
+  %13 = load <4 x i32>, ptr %w, align 16
+  %14 = extractelement <4 x i32> %13, i64 0
+  %15 = load <4 x i32>, ptr %w, align 16
+  %16 = extractelement <4 x i32> %15, i64 1
+  %17 = load <4 x i32>, ptr %w, align 16
+  %18 = extractelement <4 x i32> %17, i64 2
+  %19 = load <4 x i32>, ptr %w, align 16
+  %20 = extractelement <4 x i32> %19, i64 3
+  %21 = call i32 (ptr, ...) @printf(ptr @.str.2, i32 %14, i32 %16, i32 %18, i32 %20)
+  %22 = load <4 x i32>, ptr %y, align 16
+  %23 = load <4 x i32>, ptr %z, align 16
+  %xor = xor <4 x i32> %22, %23
+  store <4 x i32> %xor, ptr %w, align 16
+  %24 = load <4 x i32>, ptr %w, align 16
+  %25 = extractelement <4 x i32> %24, i64 0
+  %26 = load <4 x i32>, ptr %w, align 16
+  %27 = extractelement <4 x i32> %26, i64 1
+  %28 = load <4 x i32>, ptr %w, align 16
+  %29 = extractelement <4 x i32> %28, i64 2
+  %30 = load <4 x i32>, ptr %w, align 16
+  %31 = extractelement <4 x i32> %30, i64 3
+  %32 = call i32 (ptr, ...) @printf(ptr @.str.3, i32 %25, i32 %27, i32 %29, i32 %31)
+  %33 = load <4 x i32>, ptr %y, align 16
+  %bnot = xor <4 x i32> %33,
+  store <4 x i32> %bnot, ptr %w, align 16
+  %34 = load <4 x i32>, ptr %w, align 16
+  %35 = extractelement <4 x i32> %34, i64 0
+  %36 = load <4 x i32>, ptr %w, align 16
+  %37 = extractelement <4 x i32> %36, i64 1
+  %38 = load <4 x i32>, ptr %w, align 16
+  %39 = extractelement <4 x i32> %38, i64 2
+  %40 = load <4 x i32>, ptr %w, align 16
+  %41 = extractelement <4 x i32> %40, i64 3
+  %42 = call i32 (ptr, ...) @printf(ptr @.str.4, i32 %35, i32 %37, i32 %39, i32 %41)
+  %43 = load <4 x i32>, ptr %y, align 16
+  %neg = sub <4 x i32> zeroinitializer, %43
+  store <4 x i32> %neg, ptr %w, align 16
+  %44 = load <4 x i32>, ptr %w, align 16
+  %45 = extractelement <4 x i32> %44, i64 0
+  %46 = load <4 x i32>, ptr %w, align 16
+  %47 = extractelement <4 x i32> %46, i64 1
+  %48 = load <4 x i32>, ptr %w, align 16
+  %49 = extractelement <4 x i32> %48, i64 2
+  %50 = load <4 x i32>, ptr %w, align 16
+  %51 = extractelement <4 x i32> %50, i64 3
+  %52 = call i32 (ptr, ...) @printf(ptr @.str.5, i32 %45, i32 %47, i32 %49, i32 %51)
+  %53 = load <4 x i32>, ptr %y, align 16
+  %not = icmp eq <4 x i32> %53, zeroinitializer
+  %54 = sext <4 x i1> %not to <4 x i32>
+  store <4 x i32> %54, ptr %w, align 16
+  store <4 x i32> <i32 -1, i32 13, i32 0, i32 0>, ptr %w, align 16
+  %55 = load <4 x i32>, ptr %w, align 16
+  %not1 = icmp eq <4 x i32> %55, zeroinitializer
+  %56 = sext <4 x i1> %not1 to <4 x i32>
+  store <4 x i32> %56, ptr %w, align 16
+  %57 = load <4 x i32>, ptr %w, align 16
+  %58 = extractelement <4 x i32> %57, i64 0
+  %59 = load <4 x i32>, ptr %w, align 16
+  %60 = extractelement <4 x i32> %59, i64 1
+  %61 = load <4 x i32>, ptr %w, align 16
+  %62 = extractelement <4 x i32> %61, i64 2
+  %63 = load <4 x i32>, ptr %w, align 16
+  %64 = extractelement <4 x i32> %63, i64 3
+  %65 = call i32 (ptr, ...) @printf(ptr @.str.6, i32 %58, i32 %60, i32 %62, i32 %64)
+  ret void
+}
diff --git a/test/test_suite7/vector/vector_consts.c3t b/test/test_suite7/vector/vector_consts.c3t
new file mode 100644
index 000000000..1a2c76710
--- /dev/null
+++ b/test/test_suite7/vector/vector_consts.c3t
@@ -0,0 +1,43 @@
+// #target: macos-x64
+module foo;
+import std::math;
+fn int x(char[<8>] a, char[<8>] b)
+{
+	bool[<8>] z = a.comp_eq(b);
+	return ((char[<8>]) { [0..7] = 255 } & (char[<8>])z + ~(char[<8>])z & (char[<8>]) { 0, 1, 2, 3, 4, 5, 6, 7 }).min();
+}
+
+/* #expect: foo.ll
+
+define i32 @foo.x(double %0, double %1) #0 {
+entry:
+  %a = alloca <8 x i8>, align 8
+  %b = alloca <8 x i8>, align 8
+  %z = alloca <8 x i8>, align 8
+  %x = alloca <8 x i8>, align 1
+  %y = alloca <8 x i8>, align 1
+  store double %0, ptr %a, align 8
+  store double %1, ptr %b, align 8
+  %2 = load <8 x i8>, ptr %a, align 8
+  store <8 x i8> %2, ptr %x, align 1
+  %3 = load <8 x i8>, ptr %b, align 8
+  store <8 x i8> %3, ptr %y, align 1
+  %4 = load <8 x i8>, ptr %x, align 1
+  %5 = load <8 x i8>, ptr %y, align 1
+  %eq = icmp eq <8 x i8> %4, %5
+  %6 = sext <8 x i1> %eq to <8 x i8>
+  store <8 x i8> %6, ptr %z, align 8
+  %7 = load <8 x i8>, ptr %z, align 8
+  %8 = trunc <8 x i8> %7 to <8 x i1>
+  %sext = sext <8 x i1> %8 to <8 x i8>
+  %and = and <8 x i8>
+  %9 = load <8 x i8>, ptr %z, align 8
+  %10 = trunc <8 x i8> %9 to <8 x i1>
+  %sext1 = sext <8 x i1> %10 to <8 x i8>
+  %bnot = xor <8 x i8>
+  %and2 = and <8 x i8> %bnot, <i8 0, i8 1, i8 2, i8 3, i8 4, i8 5, i8 6, i8 7>
+  %add = add <8 x i8> %and, %and2
+  %11 = call i8 @llvm.vector.reduce.umin.v8i8(<8 x i8> %add)
+  %zext = zext i8 %11 to i32
+  ret i32 %zext
+}
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_conversion_scalar.c3 b/test/test_suite7/vector/vector_conversion_scalar.c3
new file mode 100644
index 000000000..1b99dc30c
--- /dev/null
+++ b/test/test_suite7/vector/vector_conversion_scalar.c3
@@ -0,0 +1,15 @@
+// #deprecation: no
+fn void test2(int[<2>] x) {}
+fn void main()
+{
+  int[<2>] y = 1;
+  y[..] = 3;
+  y.xy = 3;       // #error: cannot use swizzling
+  y *= 2;
+  y = 3;          // #error: explicit cast
+  test2(3);       // #error: explicit cast
+  {|
+    if (y[0] == 3) return 1; // #error: explicit cast
+    return y;
+  |};
+}
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_from_i1.c3t b/test/test_suite7/vector/vector_from_i1.c3t
new file mode 100644
index 000000000..5741e166f
--- /dev/null
+++ b/test/test_suite7/vector/vector_from_i1.c3t
@@ -0,0 +1,31 @@
+// #target: macos-x64
+module test;
+import std;
+
+// issue 1954
+macro splat($Type, x)
+{
+	return ($Type) {x,x,x,x};
+}
+
+fn void main()
+{
+	int[<4>] v1 = splat(int[<4>], 2);
+	int[<4>] v2 = splat(int[<4>], 1);
+	bool[<4>] vb = (v1 == v2);
+}
+
+/* #expect: test.ll
+
+  store <4 x i32>
+  store <4 x i32>
+  %0 = load <4 x i32>, ptr %v1, align 16
+  %1 = load <4 x i32>, ptr %v2, align 16
+  %eq = icmp eq <4 x i32> %0, %1
+  %2 = call i1 @llvm.vector.reduce.and.v4i1(<4 x i1> %eq)
+  %3 = zext i1 %2 to i8
+  %4 = insertelement <4 x i8> undef, i8 %3, i64 0
+  %5 = insertelement <4 x i8> %4, i8 %3, i64 1
+  %6 = insertelement <4 x i8> %5, i8 %3, i64 2
+  %7 = insertelement <4 x i8> %6, i8 %3, i64 3
+  store <4 x i8> %7, ptr %vb, align 4
diff --git a/test/test_suite7/vector/vector_incdec.c3t b/test/test_suite7/vector/vector_incdec.c3t
new file mode 100644
index 000000000..822296f45
--- /dev/null
+++ b/test/test_suite7/vector/vector_incdec.c3t
@@ -0,0 +1,189 @@
+// #target: macos-x64
+import libc;
+
+fn void testf()
+{
+    float[<4>] y = { 1, 2, 3, 4 };
+    float[<4>] z = { 2, 2, 2, -100 };
+    y += z;
+    libc::printf("Add %f %f %f %f\n", y[0], y[1], y[2], y[3]);
+    y++;
+    libc::printf("Inc %f %f %f %f\n", y[0], y[1], y[2], y[3]);
+    ++y;
+    libc::printf("Inc %f %f %f %f\n", y[0], y[1], y[2], y[3]);
+    y--;
+    libc::printf("Dec %f %f %f %f\n", y[0], y[1], y[2], y[3]);
+}
+
+fn void testi()
+{
+    int[<4>] y = { 1, 2, 3, 4 };
+    int[<4>] z = { 2, 2, 2, -100 };
+    y += z;
+    libc::printf("Add %d %d %d %d\n", y[0], y[1], y[2], y[3]);
+    y++;
+    libc::printf("Inc %d %d %d %d\n", y[0], y[1], y[2], y[3]);
+    ++y;
+    libc::printf("Inc %d %d %d %d\n", y[0], y[1], y[2], y[3]);
+    int[<4>]w = y--;
+    libc::printf("Dec %d %d %d %d\n", y[0], y[1], y[2], y[3]);
+    libc::printf("Original %d %d %d %d\n", w[0], w[1], w[2], w[3]);
+}
+
+fn void main()
+{
+    testf();
+    testi();
+}
+
+/* #expect: vector_incdec.ll
+
+define void @vector_incdec.testf() #0 {
+entry:
+  %y = alloca <4 x float>, align 16
+  %z = alloca <4 x float>, align 16
+  store <4 x float> <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>, ptr %y, align 16
+  store <4 x float> <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float -1.000000e+02>, ptr %z, align 16
+  %0 = load <4 x float>, ptr %y, align 16
+  %1 = load <4 x float>, ptr %z, align 16
+  %fadd = fadd <4 x float> %0, %1
+  store <4 x float> %fadd, ptr %y, align 16
+  %2 = load <4 x float>, ptr %y, align 16
+  %3 = extractelement <4 x float> %2, i64 0
+  %fpfpext = fpext float %3 to double
+  %4 = load <4 x float>, ptr %y, align 16
+  %5 = extractelement <4 x float> %4, i64 1
+  %fpfpext1 = fpext float %5 to double
+  %6 = load <4 x float>, ptr %y, align 16
+  %7 = extractelement <4 x float> %6, i64 2
+  %fpfpext2 = fpext float %7 to double
+  %8 = load <4 x float>, ptr %y, align 16
+  %9 = extractelement <4 x float> %8, i64 3
+  %fpfpext3 = fpext float %9 to double
+  %10 = call i32 (ptr, ...) @printf(ptr @.str, double %fpfpext, double %fpfpext1, double %fpfpext2, double %fpfpext3)
+  %11 = load <4 x float>, ptr %y, align 16
+  %fincdec = fadd <4 x float> %11,
+  store <4 x float> %fincdec, ptr %y, align 16
+  %12 = load <4 x float>, ptr %y, align 16
+  %13 = extractelement <4 x float> %12, i64 0
+  %fpfpext4 = fpext float %13 to double
+  %14 = load <4 x float>, ptr %y, align 16
+  %15 = extractelement <4 x float> %14, i64 1
+  %fpfpext5 = fpext float %15 to double
+  %16 = load <4 x float>, ptr %y, align 16
+  %17 = extractelement <4 x float> %16, i64 2
+  %fpfpext6 = fpext float %17 to double
+  %18 = load <4 x float>, ptr %y, align 16
+  %19 = extractelement <4 x float> %18, i64 3
+  %fpfpext7 = fpext float %19 to double
+  %20 = call i32 (ptr, ...) @printf(ptr @.str.1, double %fpfpext4, double %fpfpext5, double %fpfpext6, double %fpfpext7)
+  %21 = load <4 x float>, ptr %y, align 16
+  %fincdec8 = fadd <4 x float> %21,
+  store <4 x float> %fincdec8, ptr %y, align 16
+  %22 = load <4 x float>, ptr %y, align 16
+  %23 = extractelement <4 x float> %22, i64 0
+  %fpfpext9 = fpext float %23 to double
+  %24 = load <4 x float>, ptr %y, align 16
+  %25 = extractelement <4 x float> %24, i64 1
+  %fpfpext10 = fpext float %25 to double
+  %26 = load <4 x float>, ptr %y, align 16
+  %27 = extractelement <4 x float> %26, i64 2
+  %fpfpext11 = fpext float %27 to double
+  %28 = load <4 x float>, ptr %y, align 16
+  %29 = extractelement <4 x float> %28, i64 3
+  %fpfpext12 = fpext float %29 to double
+  %30 = call i32 (ptr, ...) @printf(ptr @.str.2, double %fpfpext9, double %fpfpext10, double %fpfpext11, double %fpfpext12)
+  %31 = load <4 x float>, ptr %y, align 16
+  %fincdec13 = fadd <4 x float> %31,
+  store <4 x float> %fincdec13, ptr %y, align 16
+  %32 = load <4 x float>, ptr %y, align 16
+  %33 = extractelement <4 x float> %32, i64 0
+  %fpfpext14 = fpext float %33 to double
+  %34 = load <4 x float>, ptr %y, align 16
+  %35 = extractelement <4 x float> %34, i64 1
+  %fpfpext15 = fpext float %35 to double
+  %36 = load <4 x float>, ptr %y, align 16
+  %37 = extractelement <4 x float> %36, i64 2
+  %fpfpext16 = fpext float %37 to double
+  %38 = load <4 x float>, ptr %y, align 16
+  %39 = extractelement <4 x float> %38, i64 3
+  %fpfpext17 = fpext float %39 to double
+  %40 = call i32 (ptr, ...) @printf(ptr @.str.3, double %fpfpext14, double %fpfpext15, double %fpfpext16, double %fpfpext17)
+  ret void
+}
+
+define void @vector_incdec.testi() #0 {
+entry:
+  %y = alloca <4 x i32>, align 16
+  %z = alloca <4 x i32>, align 16
+  %w = alloca <4 x i32>, align 16
+  store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %y, align 16
+  store <4 x i32> <i32 2, i32 2, i32 2, i32 -100>, ptr %z, align 16
+  %0 = load <4 x i32>, ptr %y, align 16
+  %1 = load <4 x i32>, ptr %z, align 16
+  %add = add <4 x i32> %0, %1
+  store <4 x i32> %add, ptr %y, align 16
+  %2 = load <4 x i32>, ptr %y, align 16
+  %3 = extractelement <4 x i32> %2, i64 0
+  %4 = load <4 x i32>, ptr %y, align 16
+  %5 = extractelement <4 x i32> %4, i64 1
+  %6 = load <4 x i32>, ptr %y, align 16
+  %7 = extractelement <4 x i32> %6, i64 2
+  %8 = load <4 x i32>, ptr %y, align 16
+  %9 = extractelement <4 x i32> %8, i64 3
+  %10 = call i32 (ptr, ...) @printf(ptr @.str.4, i32 %3, i32 %5, i32 %7, i32 %9)
+  %11 = load <4 x i32>, ptr %y, align 16
+  %add1 = add <4 x i32> %11,
+  store <4 x i32> %add1, ptr %y, align 16
+  %12 = load <4 x i32>, ptr %y, align 16
+  %13 = extractelement <4 x i32> %12, i64 0
+  %14 = load <4 x i32>, ptr %y, align 16
+  %15 = extractelement <4 x i32> %14, i64 1
+  %16 = load <4 x i32>, ptr %y, align 16
+  %17 = extractelement <4 x i32> %16, i64 2
+  %18 = load <4 x i32>, ptr %y, align 16
+  %19 = extractelement <4 x i32> %18, i64 3
+  %20 = call i32 (ptr, ...) @printf(ptr @.str.5, i32 %13, i32 %15, i32 %17, i32 %19)
+  %21 = load <4 x i32>, ptr %y, align 16
+  %add2 = add <4 x i32> %21,
+  store <4 x i32> %add2, ptr %y, align 16
+  %22 = load <4 x i32>, ptr %y, align 16
+  %23 = extractelement <4 x i32> %22, i64 0
+  %24 = load <4 x i32>, ptr %y, align 16
+  %25 = extractelement <4 x i32> %24, i64 1
+  %26 = load <4 x i32>, ptr %y, align 16
+  %27 = extractelement <4 x i32> %26, i64 2
+  %28 = load <4 x i32>, ptr %y, align 16
+  %29 = extractelement <4 x i32> %28, i64 3
+  %30 = call i32 (ptr, ...) @printf(ptr @.str.6, i32 %23, i32 %25, i32 %27, i32 %29)
+  %31 = load <4 x i32>, ptr %y, align 16
+  %sub = sub <4 x i32> %31,
+  store <4 x i32> %sub, ptr %y, align 16
+  store <4 x i32> %31, ptr %w, align 16
+  %32 = load <4 x i32>, ptr %y, align 16
+  %33 = extractelement <4 x i32> %32, i64 0
+  %34 = load <4 x i32>, ptr %y, align 16
+  %35 = extractelement <4 x i32> %34, i64 1
+  %36 = load <4 x i32>, ptr %y, align 16
+  %37 = extractelement <4 x i32> %36, i64 2
+  %38 = load <4 x i32>, ptr %y, align 16
+  %39 = extractelement <4 x i32> %38, i64 3
+  %40 = call i32 (ptr, ...) @printf(ptr @.str.7, i32 %33, i32 %35, i32 %37, i32 %39)
+  %41 = load <4 x i32>, ptr %w, align 16
+  %42 = extractelement <4 x i32> %41, i64 0
+  %43 = load <4 x i32>, ptr %w, align 16
+  %44 = extractelement <4 x i32> %43, i64 1
+  %45 = load <4 x i32>, ptr %w, align 16
+  %46 = extractelement <4 x i32> %45, i64 2
+  %47 = load <4 x i32>, ptr %w, align 16
+  %48 = extractelement <4 x i32> %47, i64 3
+  %49 = call i32 (ptr, ...) @printf(ptr @.str.8, i32 %42, i32 %44, i32 %46, i32 %48)
+  ret void
+}
+
+define void @vector_incdec.main() #0 {
+entry:
+  call void @vector_incdec.testf()
+  call void @vector_incdec.testi()
+  ret void
+}
diff --git a/test/test_suite7/vector/vector_init.c3t b/test/test_suite7/vector/vector_init.c3t
new file mode 100644
index 000000000..18469b719
--- /dev/null
+++ b/test/test_suite7/vector/vector_init.c3t
@@ -0,0 +1,53 @@
+// #target: macos-x64
+int[<4>] baz = { 1, 4, 5, 7 };
+
+fn void main()
+{
+    int[<4>] foo = { 1, 2, 3, 4 };
+    int z = foo[0];
+    foo[2] = z + 1;
+    int[<4>] bar = {};
+    int[<4>] bar2 = { 1, z, 3, 4 };
+    int[<4>] bar3 = { [1] = z };
+    int[<4>] bar4 = { [0..3] = z };
+}
+
+/* #expect: vector_init.ll
+
+@vector_init.baz = local_unnamed_addr global <4 x i32> <i32 1, i32 4, i32 5, i32 7>, align 16
+
+
+define void @vector_init.main() #0 {
+entry:
+  %foo = alloca <4 x i32>, align 16
+  %z = alloca i32, align 4
+  %bar = alloca <4 x i32>, align 16
+  %bar2 = alloca <4 x i32>, align 16
+  %bar3 = alloca <4 x i32>, align 16
+  %bar4 = alloca <4 x i32>, align 16
+  store <4 x i32> <i32 1, i32 2, i32 3, i32 4>, ptr %foo, align 16
+  %0 = load <4 x i32>, ptr %foo, align 16
+  %1 = extractelement <4 x i32> %0, i64 0
+  store i32 %1, ptr %z, align 4
+  %2 = load <4 x i32>, ptr %foo, align 16
+  %3 = load i32, ptr %z, align 4
+  %add = add i32 %3, 1
+  %elemset = insertelement <4 x i32> %2, i32 %add, i64 2
+  store <4 x i32> %elemset, ptr %foo, align 16
+  store <4 x i32> zeroinitializer, ptr %bar, align 16
+  %4 = load i32, ptr %z, align 4
+  %5 = insertelement <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>, i32 %4, i64 1
+  %6 = insertelement <4 x i32> %5, i32 3, i64 2
+  %7 = insertelement <4 x i32> %6, i32 4, i64 3
+  store <4 x i32> %7, ptr %bar2, align 16
+  %8 = load i32, ptr %z, align 4
+  %9 = insertelement <4 x i32> zeroinitializer, i32 %8, i64 1
+  store <4 x i32> %9, ptr %bar3, align 16
+  %10 = load i32, ptr %z, align 4
+  %11 = insertelement <4 x i32> zeroinitializer, i32 %10, i64 0
+  %12 = insertelement <4 x i32> %11, i32 %10, i64 1
+  %13 = insertelement <4 x i32> %12, i32 %10, i64 2
+  %14 = insertelement <4 x i32> %13, i32 %10, i64 3
+  store <4 x i32> %14, ptr %bar4, align 16
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_init_regression.c3t b/test/test_suite7/vector/vector_init_regression.c3t
new file mode 100644
index 000000000..73ad3b1e0
--- /dev/null
+++ b/test/test_suite7/vector/vector_init_regression.c3t
@@ -0,0 +1,414 @@
+// #target: macos-x64
+// #opt: --fp-math=relaxed
+module test;
+extern fn int printf(char* format, ...);
+
+fn void main() {
+    float radians = 3.1415 / 4;
+    float[<3>] axis = {0.0, 0.0, 1.0};
+
+    float cosr = (float) $$cos(radians);
+    float sinr = (float) $$sin(radians);
+    float x = axis[0];
+    float y = axis[1];
+    float z = axis[2];
+
+    float[<4>][4] a = {};
+    a[0] = {
+        cosr + (x * x) * (float) (1.0 - cosr),
+        (x * y) * (float) (1.0 - cosr) - (z * sinr),
+        (x * z) * (float) (1.0 - cosr) + (y * sinr),
+        0.0
+    };
+
+    a[1] = {
+        (y * x) * (float) (1.0 - cosr) + (z * sinr),
+        cosr + (y * y) * (float) (1.0 - cosr),
+        (y * z) * (float) (1.0 - cosr) - (x * sinr),
+        0.0
+    };
+
+    a[2] = {
+        (z * x) * (float) (1.0 - cosr) - (y * sinr),
+        (z * y) * (float) (1.0 - cosr) + (x * sinr),
+        cosr + (z * z) * (float) (1.0 - cosr),
+        0.0
+    };
+
+    a[3] = {
+        0.0,
+        0.0,
+        0.0,
+        1.0
+    };
+
+    float[<4>][4] b = {
+        {
+            cosr + (x * x) * (float) (1.0 - cosr),
+            (x * y) * (float) (1.0 - cosr) - (z * sinr),
+            (x * z) * (float) (1.0 - cosr) + (y * sinr),
+            0.0
+        },
+        {
+            (y * x) * (float) (1.0 - cosr) + (z * sinr),
+            cosr + (y * y) * (float) (1.0 - cosr),
+            (y * z) * (float) (1.0 - cosr) - (x * sinr),
+            0.0
+        },
+        {
+            (z * x) * (float) (1.0 - cosr) - (y * sinr),
+            (z * y) * (float) (1.0 - cosr) + (x * sinr),
+            cosr + (z * z) * (float) (1.0 - cosr),
+            0.0
+        },
+        {
+            0.0,
+            0.0,
+            0.0,
+            1.0
+        }
+    };
+
+    foreach(v : a) {
+        printf("A: %f %f %f %f\n", v[0], v[1], v[2], v[3]);
+    }
+
+    printf("\n");
+
+    foreach(v : b) {
+        printf("B: %f %f %f %f\n", v[0], v[1], v[2], v[3]);
+    }
+}
+
+/* #expect: test.ll
+
+define void @test.main() #0 {
+entry:
+  %radians = alloca float, align 4
+  %axis = alloca <3 x float>, align 16
+  %cosr = alloca float, align 4
+  %sinr = alloca float, align 4
+  %x = alloca float, align 4
+  %y = alloca float, align 4
+  %z = alloca float, align 4
+  %a = alloca [4 x <4 x float>], align 16
+  %b = alloca [4 x <4 x float>], align 16
+  %.anon = alloca i64, align 8
+  %v = alloca <4 x float>, align 16
+  %.anon90 = alloca i64, align 8
+  %v94 = alloca <4 x float>, align 16
+  store float 0x3FE921CAC0000000, ptr %radians, align 4
+  store <3 x float> <float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, ptr %axis, align 16
+  %0 = load float, ptr %radians, align 4
+  %1 = call reassoc arcp contract float @llvm.cos.f32(float %0)
+  store float %1, ptr %cosr, align 4
+  %2 = load float, ptr %radians, align 4
+  %3 = call reassoc arcp contract float @llvm.sin.f32(float %2)
+  store float %3, ptr %sinr, align 4
+  %4 = load <3 x float>, ptr %axis, align 16
+  %5 = extractelement <3 x float> %4, i64 0
+  store float %5, ptr %x, align 4
+  %6 = load <3 x float>, ptr %axis, align 16
+  %7 = extractelement <3 x float> %6, i64 1
+  store float %7, ptr %y, align 4
+  %8 = load <3 x float>, ptr %axis, align 16
+  %9 = extractelement <3 x float> %8, i64 2
+  store float %9, ptr %z, align 4
+  call void @llvm.memset.p0.i64(ptr align 16 %a, i8 0, i64 64, i1 false)
+  %10 = load float, ptr %cosr, align 4
+  %11 = load float, ptr %x, align 4
+  %12 = load float, ptr %x, align 4
+  %fmul = fmul reassoc arcp contract float %11, %12
+  %13 = load float, ptr %cosr, align 4
+  %fpfpext = fpext
+  %fsub = fsub reassoc arcp contract double 1.000000e+00, %fpfpext
+  %fpfptrunc = fptrunc
+  %14 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul, float %fpfptrunc, float %10)
+  %15 = insertelement <4 x float> undef, float %14, i64 0
+  %16 = load float, ptr %x, align 4
+  %17 = load float, ptr %y, align 4
+  %fmul1 = fmul reassoc arcp contract float %16, %17
+  %18 = load float, ptr %cosr, align 4
+  %fpfpext2 = fpext
+  %fsub3 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext2
+  %fpfptrunc4 = fptrunc
+  %19 = load float, ptr %z, align 4
+  %20 = load float, ptr %sinr, align 4
+  %fmul5 = fmul reassoc arcp contract float %19, %20
+  %21 = fneg reassoc arcp contract float %fmul5
+  %22 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul1, float %fpfptrunc4, float %21)
+  %23 = insertelement <4 x float> %15, float %22, i64 1
+  %24 = load float, ptr %x, align 4
+  %25 = load float, ptr %z, align 4
+  %fmul6 = fmul reassoc arcp contract float %24, %25
+  %26 = load float, ptr %cosr, align 4
+  %fpfpext7 = fpext
+  %fsub8 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext7
+  %fpfptrunc9 = fptrunc
+  %27 = load float, ptr %y, align 4
+  %28 = load float, ptr %sinr, align 4
+  %fmul10 = fmul reassoc arcp contract float %27, %28
+  %29 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul6, float %fpfptrunc9, float %fmul10)
+  %30 = insertelement <4 x float> %23, float %29, i64 2
+  %31 = insertelement <4 x float> %30, float 0.000000e+00, i64 3
+  store <4 x float> %31, ptr %a, align 16
+  %ptradd = getelementptr inbounds i8, ptr %a, i64 16
+  %32 = load float, ptr %y, align 4
+  %33 = load float, ptr %x, align 4
+  %fmul11 = fmul reassoc arcp contract float %32, %33
+  %34 = load float, ptr %cosr, align 4
+  %fpfpext12 = fpext
+  %fsub13 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext12
+  %fpfptrunc14 = fptrunc
+  %35 = load float, ptr %z, align 4
+  %36 = load float, ptr %sinr, align 4
+  %fmul15 = fmul reassoc arcp contract float %35, %36
+  %37 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul11, float %fpfptrunc14, float %fmul15)
+  %38 = insertelement <4 x float> undef, float %37, i64 0
+  %39 = load float, ptr %cosr, align 4
+  %40 = load float, ptr %y, align 4
+  %41 = load float, ptr %y, align 4
+  %fmul16 = fmul reassoc arcp contract float %40, %41
+  %42 = load float, ptr %cosr, align 4
+  %fpfpext17 = fpext
+  %fsub18 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext17
+  %fpfptrunc19 = fptrunc
+  %43 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul16, float %fpfptrunc19, float %39)
+  %44 = insertelement <4 x float> %38, float %43, i64 1
+  %45 = load float, ptr %y, align 4
+  %46 = load float, ptr %z, align 4
+  %fmul20 = fmul reassoc arcp contract float %45, %46
+  %47 = load float, ptr %cosr, align 4
+  %fpfpext21 = fpext
+  %fsub22 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext21
+  %fpfptrunc23 = fptrunc
+  %48 = load float, ptr %x, align 4
+  %49 = load float, ptr %sinr, align 4
+  %fmul24 = fmul reassoc arcp contract float %48, %49
+  %50 = fneg reassoc arcp contract float %fmul24
+  %51 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul20, float %fpfptrunc23, float %50)
+  %52 = insertelement <4 x float> %44, float %51, i64 2
+  %53 = insertelement <4 x float> %52, float 0.000000e+00, i64 3
+  store <4 x float> %53, ptr %ptradd, align 16
+  %ptradd25 = getelementptr inbounds i8, ptr %a, i64 32
+  %54 = load float, ptr %z, align 4
+  %55 = load float, ptr %x, align 4
+  %fmul26 = fmul reassoc arcp contract float %54, %55
+  %56 = load float, ptr %cosr, align 4
+  %fpfpext27 = fpext
+  %fsub28 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext27
+  %fpfptrunc29 = fptrunc
+  %57 = load float, ptr %y, align 4
+  %58 = load float, ptr %sinr, align 4
+  %fmul30 = fmul reassoc arcp contract float %57, %58
+  %59 = fneg reassoc arcp contract float %fmul30
+  %60 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul26, float %fpfptrunc29, float %59)
+  %61 = insertelement <4 x float> undef, float %60, i64 0
+  %62 = load float, ptr %z, align 4
+  %63 = load float, ptr %y, align 4
+  %fmul31 = fmul reassoc arcp contract float %62, %63
+  %64 = load float, ptr %cosr, align 4
+  %fpfpext32 = fpext
+  %fsub33 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext32
+  %fpfptrunc34 = fptrunc
+  %65 = load float, ptr %x, align 4
+  %66 = load float, ptr %sinr, align 4
+  %fmul35 = fmul reassoc arcp contract float %65, %66
+  %67 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul31, float %fpfptrunc34, float %fmul35)
+  %68 = insertelement <4 x float> %61, float %67, i64 1
+  %69 = load float, ptr %cosr, align 4
+  %70 = load float, ptr %z, align 4
+  %71 = load float, ptr %z, align 4
+  %fmul36 = fmul reassoc arcp contract float %70, %71
+  %72 = load float, ptr %cosr, align 4
+  %fpfpext37 = fpext
+  %fsub38 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext37
+  %fpfptrunc39 = fptrunc
+  %73 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul36, float %fpfptrunc39, float %69)
+  %74 = insertelement <4 x float> %68, float %73, i64 2
+  %75 = insertelement <4 x float> %74, float 0.000000e+00, i64 3
+  store <4 x float> %75, ptr %ptradd25, align 16
+  %ptradd40 = getelementptr inbounds i8, ptr %a, i64 48
+  store <4 x float> <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, ptr %ptradd40, align 16
+  %76 = load float, ptr %cosr, align 4
+  %77 = load float, ptr %x, align 4
+  %78 = load float, ptr %x, align 4
+  %fmul41 = fmul reassoc arcp contract float %77, %78
+  %79 = load float, ptr %cosr, align 4
+  %fpfpext42 = fpext
+  %fsub43 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext42
+  %fpfptrunc44 = fptrunc
+  %80 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul41, float %fpfptrunc44, float %76)
+  %81 = insertelement <4 x float> undef, float %80, i64 0
+  %82 = load float, ptr %x, align 4
+  %83 = load float, ptr %y, align 4
+  %fmul45 = fmul reassoc arcp contract float %82, %83
+  %84 = load float, ptr %cosr, align 4
+  %fpfpext46 = fpext
+  %fsub47 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext46
+  %fpfptrunc48 = fptrunc
+  %85 = load float, ptr %z, align 4
+  %86 = load float, ptr %sinr, align 4
+  %fmul49 = fmul reassoc arcp contract float %85, %86
+  %87 = fneg reassoc arcp contract float %fmul49
+  %88 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul45, float %fpfptrunc48, float %87)
+  %89 = insertelement <4 x float> %81, float %88, i64 1
+  %90 = load float, ptr %x, align 4
+  %91 = load float, ptr %z, align 4
+  %fmul50 = fmul reassoc arcp contract float %90, %91
+  %92 = load float, ptr %cosr, align 4
+  %fpfpext51 = fpext
+  %fsub52 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext51
+  %fpfptrunc53 = fptrunc
+  %93 = load float, ptr %y, align 4
+  %94 = load float, ptr %sinr, align 4
+  %fmul54 = fmul reassoc arcp contract float %93, %94
+  %95 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul50, float %fpfptrunc53, float %fmul54)
+  %96 = insertelement <4 x float> %89, float %95, i64 2
+  %97 = insertelement <4 x float> %96, float 0.000000e+00, i64 3
+  store <4 x float> %97, ptr %b, align 16
+  %ptradd55 = getelementptr inbounds i8, ptr %b, i64 16
+  %98 = load float, ptr %y, align 4
+  %99 = load float, ptr %x, align 4
+  %fmul56 = fmul reassoc arcp contract float %98, %99
+  %100 = load float, ptr %cosr, align 4
+  %fpfpext57 = fpext
+  %fsub58 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext57
+  %fpfptrunc59 = fptrunc
+  %101 = load float, ptr %z, align 4
+  %102 = load float, ptr %sinr, align 4
+  %fmul60 = fmul reassoc arcp contract float %101, %102
+  %103 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul56, float %fpfptrunc59, float %fmul60)
+  %104 = insertelement <4 x float> undef, float %103, i64 0
+  %105 = load float, ptr %cosr, align 4
+  %106 = load float, ptr %y, align 4
+  %107 = load float, ptr %y, align 4
+  %fmul61 = fmul reassoc arcp contract float %106, %107
+  %108 = load float, ptr %cosr, align 4
+  %fpfpext62 = fpext
+  %fsub63 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext62
+  %fpfptrunc64 = fptrunc
+  %109 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul61, float %fpfptrunc64, float %105)
+  %110 = insertelement <4 x float> %104, float %109, i64 1
+  %111 = load float, ptr %y, align 4
+  %112 = load float, ptr %z, align 4
+  %fmul65 = fmul reassoc arcp contract float %111, %112
+  %113 = load float, ptr %cosr, align 4
+  %fpfpext66 = fpext
+  %fsub67 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext66
+  %fpfptrunc68 = fptrunc
+  %114 = load float, ptr %x, align 4
+  %115 = load float, ptr %sinr, align 4
+  %fmul69 = fmul reassoc arcp contract float %114, %115
+  %116 = fneg reassoc arcp contract float %fmul69
+  %117 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul65, float %fpfptrunc68, float %116)
+  %118 = insertelement <4 x float> %110, float %117, i64 2
+  %119 = insertelement <4 x float> %118, float 0.000000e+00, i64 3
+  store <4 x float> %119, ptr %ptradd55, align 16
+  %ptradd70 = getelementptr inbounds i8, ptr %b, i64 32
+  %120 = load float, ptr %z, align 4
+  %121 = load float, ptr %x, align 4
+  %fmul71 = fmul reassoc arcp contract float %120, %121
+  %122 = load float, ptr %cosr, align 4
+  %fpfpext72 = fpext
+  %fsub73 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext72
+  %fpfptrunc74 = fptrunc
+  %123 = load float, ptr %y, align 4
+  %124 = load float, ptr %sinr, align 4
+  %fmul75 = fmul reassoc arcp contract float %123, %124
+  %125 = fneg reassoc arcp contract float %fmul75
+  %126 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul71, float %fpfptrunc74, float %125)
+  %127 = insertelement <4 x float> undef, float %126, i64 0
+  %128 = load float, ptr %z, align 4
+  %129 = load float, ptr %y, align 4
+  %fmul76 = fmul reassoc arcp contract float %128, %129
+  %130 = load float, ptr %cosr, align 4
+  %fpfpext77 = fpext
+  %fsub78 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext77
+  %fpfptrunc79 = fptrunc
+  %131 = load float, ptr %x, align 4
+  %132 = load float, ptr %sinr, align 4
+  %fmul80 = fmul reassoc arcp contract float %131, %132
+  %133 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul76, float %fpfptrunc79, float %fmul80)
+  %134 = insertelement <4 x float> %127, float %133, i64 1
+  %135 = load float, ptr %cosr, align 4
+  %136 = load float, ptr %z, align 4
+  %137 = load float, ptr %z, align 4
+  %fmul81 = fmul reassoc arcp contract float %136, %137
+  %138 = load float, ptr %cosr, align 4
+  %fpfpext82 = fpext
+  %fsub83 = fsub reassoc arcp contract double 1.000000e+00, %fpfpext82
+  %fpfptrunc84 = fptrunc
+  %139 = call reassoc arcp contract float @llvm.fmuladd.f32(float %fmul81, float %fpfptrunc84, float %135)
+  %140 = insertelement <4 x float> %134, float %139, i64 2
+  %141 = insertelement <4 x float> %140, float 0.000000e+00, i64 3
+  store <4 x float> %141, ptr %ptradd70, align 16
+  %ptradd85 = getelementptr inbounds i8, ptr %b, i64 48
+  store <4 x float> <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, ptr %ptradd85, align 16
+  store i64 0, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.cond:                                        ; preds = %loop.body, %entry
+  %142 = load i64, ptr %.anon, align 8
+  %gt = icmp ugt i64 4, %142
+  br i1 %gt, label %loop.body, label %loop.exit
+
+loop.body:                                        ; preds = %loop.cond
+  %143 = load i64, ptr %.anon, align 8
+  %ptroffset = getelementptr inbounds [16 x i8], ptr %a, i64 %143
+  %144 = load <4 x float>, ptr %ptroffset, align 16
+  store <4 x float> %144, ptr %v, align 16
+  %145 = load <4 x float>, ptr %v, align 16
+  %146 = extractelement <4 x float> %145, i64 0
+  %fpfpext86 = fpext
+  %147 = load <4 x float>, ptr %v, align 16
+  %148 = extractelement <4 x float> %147, i64 1
+  %fpfpext87 = fpext
+  %149 = load <4 x float>, ptr %v, align 16
+  %150 = extractelement <4 x float> %149, i64 2
+  %fpfpext88 = fpext
+  %151 = load <4 x float>, ptr %v, align 16
+  %152 = extractelement <4 x float> %151, i64 3
+  %fpfpext89 = fpext
+  %153 = call i32 (ptr, ...) @printf(ptr @.str, double %fpfpext86, double %fpfpext87, double %fpfpext88, double %fpfpext89)
+  %154 = load i64, ptr %.anon, align 8
+  %addnuw = add nuw i64 %154, 1
+  store i64 %addnuw, ptr %.anon, align 8
+  br label %loop.cond
+
+loop.exit:                                        ; preds = %loop.cond
+  %155 = call i32 (ptr, ...) @printf(ptr @.str.1)
+  store i64 0, ptr %.anon90, align 8
+  br label %loop.cond91
+
+loop.cond91:                                      ; preds = %loop.body93, %loop.exit
+  %156 = load i64, ptr %.anon90, align 8
+  %gt92 = icmp ugt i64 4, %156
+  br i1 %gt92, label %loop.body93, label %loop.exit101
+
+loop.body93:                                      ; preds = %loop.cond91
+  %157 = load i64, ptr %.anon90, align 8
+  %ptroffset95 = getelementptr inbounds [16 x i8], ptr %b, i64 %157
+  %158 = load <4 x float>, ptr %ptroffset95, align 16
+  store <4 x float> %158, ptr %v94, align 16
+  %159 = load <4 x float>, ptr %v94, align 16
+  %160 = extractelement <4 x float> %159, i64 0
+  %fpfpext96 = fpext
+  %161 = load <4 x float>, ptr %v94, align 16
+  %162 = extractelement <4 x float> %161, i64 1
+  %fpfpext97 = fpext
+  %163 = load <4 x float>, ptr %v94, align 16
+  %164 = extractelement <4 x float> %163, i64 2
+  %fpfpext98 = fpext
+  %165 = load <4 x float>, ptr %v94, align 16
+  %166 = extractelement <4 x float> %165, i64 3
+  %fpfpext99 = fpext
+  %167 = call i32 (ptr, ...) @printf(ptr @.str.2, double %fpfpext96, double %fpfpext97, double %fpfpext98, double %fpfpext99)
+  %168 = load i64, ptr %.anon90, align 8
+  %addnuw100 = add nuw i64 %168, 1
+  store i64 %addnuw100, ptr %.anon90, align 8
+  br label %loop.cond91
+
+loop.exit101:                                     ; preds = %loop.cond91
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_lowering_regression1.c3t b/test/test_suite7/vector/vector_lowering_regression1.c3t
new file mode 100644
index 000000000..e44d51573
--- /dev/null
+++ b/test/test_suite7/vector/vector_lowering_regression1.c3t
@@ -0,0 +1,12 @@
+// #target: linux-x64
+module test;
+union Vec4f @export @align(16) {
+  struct { float x,y,z,w; }
+  float[<4>] v;
+}
+
+extern fn void foo(Vec4f) @extern("foo");
+
+/* #expect: test.ll
+
+declare void @foo(double, double) #0
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_ops2.c3t b/test/test_suite7/vector/vector_ops2.c3t
new file mode 100644
index 000000000..c98b66e2f
--- /dev/null
+++ b/test/test_suite7/vector/vector_ops2.c3t
@@ -0,0 +1,55 @@
+// #target: macos-x64
+// #safe: yes
+module test;
+import libc;
+
+fn void testf()
+{
+    float[<4>] y = { 1, 2, 3, 4 };
+    float[<4>] z = { 2, 2, 2, -100 };
+    float[<4>] w = y + z;
+    w = y / z;
+}
+
+
+fn void testi()
+{
+    int[<4>] y = { 1, 2, 3, 4 };
+    int[<4>] z = { 2, 2, 2, -100 };
+    int[<4>] w = y / z;
+    w = z >> y;
+    w = z << y;
+}
+
+/* #expect: test.ll
+
+
+define void @test.testf() #0 {
+entry:
+  %y = alloca <4 x float>, align 16
+  %z = alloca <4 x float>, align 16
+  %w = alloca <4 x float>, align 16
+  store <4 x float> <float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00>, ptr %y, align 16
+  store <4 x float> <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float -1.000000e+02>, ptr %z, align 16
+  %0 = load <4 x float>, ptr %y, align 16
+  %1 = load <4 x float>, ptr %z, align 16
+  %fadd = fadd <4 x float> %0, %1
+  store <4 x float> %fadd, ptr %w, align 16
+  %2 = load <4 x float>, ptr %y, align 16
+  %3 = load <4 x float>, ptr %z, align 16
+  %4 = call <4 x float> @llvm.fabs.v4f32(<4 x float> %3)
+  %5 = call float @llvm.vector.reduce.fmin.v4f32(<4 x float> %4)
+  %zero = fcmp ueq float %5, 0.000000e+00
+  %6 = call i1 @llvm.expect.i1(i1 %zero, i1 false)
+  br i1 %6, label %panic, label %checkok
+
+checkok:                                          ; preds = %entry
+  %fdiv = fdiv <4 x float> %2, %3
+  store <4 x float> %fdiv, ptr %w, align 16
+  ret void
+
+panic:                                            ; preds = %entry
+  %7 = load ptr, ptr @std.core.builtin.panic, align 8
+  call void %7(ptr @.panic_msg, i64 17, ptr @.file, i64 14, ptr @.func, i64 5, i32 9)
+  unreachable
+}
diff --git a/test/test_suite7/vector/vector_param.c3t b/test/test_suite7/vector/vector_param.c3t
new file mode 100644
index 000000000..2cb143223
--- /dev/null
+++ b/test/test_suite7/vector/vector_param.c3t
@@ -0,0 +1,34 @@
+// #target: macos-x64
+module test;
+
+fn void test(int[<4>] x)
+{
+	x[1] = 123;
+	int y = x[1];
+	assert(y == 123);
+}
+
+fn int main()
+{
+	test({ 1, 2, 1, 4 });
+	return 0;
+}
+
+/* #expect: test.ll
+
+define void @test.test(<4 x i32> %0) #0 {
+entry:
+  %x = alloca <4 x i32>, align 16
+  %y = alloca i32, align 4
+  store <4 x i32> %0, ptr %x, align 16
+  %1 = load <4 x i32>, ptr %x, align 16
+  %elemset = insertelement <4 x i32> %1, i32 123, i64 1
+  store <4 x i32> %elemset, ptr %x, align 16
+  %2 = load <4 x i32>, ptr %x, align 16
+  %3 = extractelement <4 x i32> %2, i64 1
+  store i32 %3, ptr %y, align 4
+  %4 = load i32, ptr %y, align 4
+  %eq = icmp eq i32 %4, 123
+  call void @llvm.assume(i1 %eq)
+  ret void
+}
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_pointer_errors.c3 b/test/test_suite7/vector/vector_pointer_errors.c3
new file mode 100644
index 000000000..26810af30
--- /dev/null
+++ b/test/test_suite7/vector/vector_pointer_errors.c3
@@ -0,0 +1,14 @@
+module vecpointer;
+
+fn void pointer_add_sub_diff()
+{
+	int[5] a;
+	int*[<2>] y;
+    double*[<2>] z = y; // #error: 'int*[<2>]' to 'double*[<2>]'
+	y / y; // #error: Cannot divide
+	y % y; // #error: not defined
+	y * y; // #error: multiply
+	y ^ y; // #error: not defined
+	iptr[<2>] g = (iptr[<2>])y;
+	g | g;
+}
diff --git a/test/test_suite7/vector/vector_shift.c3t b/test/test_suite7/vector/vector_shift.c3t
new file mode 100644
index 000000000..deea3d271
--- /dev/null
+++ b/test/test_suite7/vector/vector_shift.c3t
@@ -0,0 +1,43 @@
+// #target: macos-x64
+module test;
+fn int main()
+{
+	int[<2>] z = { 1, 2 };
+	z <<= 2;
+	z << 2;
+	int x;
+    z <<= { x, 2 };
+	z << { 1, 2 };
+	z <<= { 1, 2 };
+	return 0;
+}
+
+/* #expect: test.ll
+
+entry:
+  %z = alloca <2 x i32>, align 8
+  %x = alloca i32, align 4
+  store <2 x i32> <i32 1, i32 2>, ptr %z, align 8
+  %0 = load <2 x i32>, ptr %z, align 8
+  %shl = shl <2 x i32> %0,
+  %1 = freeze <2 x i32> %shl
+  store <2 x i32> %1, ptr %z, align 8
+  %2 = load <2 x i32>, ptr %z, align 8
+  %shl1 = shl <2 x i32> %2,
+  %3 = freeze <2 x i32> %shl1
+  store i32 0, ptr %x, align 4
+  %4 = load <2 x i32>, ptr %z, align 8
+  %5 = load i32, ptr %x, align 4
+  %6 = insertelement <2 x i32> undef, i32 %5, i64 0
+  %7 = insertelement <2 x i32> %6, i32 2, i64 1
+  %shl2 = shl <2 x i32> %4, %7
+  %8 = freeze <2 x i32> %shl2
+  store <2 x i32> %8, ptr %z, align 8
+  %9 = load <2 x i32>, ptr %z, align 8
+  %shl3 = shl <2 x i32> %9, <i32 1, i32 2>
+  %10 = freeze <2 x i32> %shl3
+  %11 = load <2 x i32>, ptr %z, align 8
+  %shl4 = shl <2 x i32> %11, <i32 1, i32 2>
+  %12 = freeze <2 x i32> %shl4
+  store <2 x i32> %12, ptr %z, align 8
+  ret i32 0
diff --git a/test/test_suite7/vector/vector_to_array_cast.c3t b/test/test_suite7/vector/vector_to_array_cast.c3t
new file mode 100644
index 000000000..65218e8cd
--- /dev/null
+++ b/test/test_suite7/vector/vector_to_array_cast.c3t
@@ -0,0 +1,39 @@
+// #target: macos-x64
+
+module test;
+
+int[<2>] b = (int[<2>])((int[2]) { 1, 2 });
+int[2] c = (int[2])((int[<2>]) { 1, 2 });
+
+fn void tester()
+{
+    int[<2>] x = { 1, 2 };
+    int[2] y = (int[2])(x);
+    double[<2>] zz = y;
+    x = (int[<2>])(y);
+}
+
+/* #expect: test.ll
+
+@test.b = local_unnamed_addr global <2 x i32> <i32 1, i32 2>, align 8
+@test.c = local_unnamed_addr global [2 x i32] [i32 1, i32 2], align 4
+
+define void @test.tester() #0 {
+entry:
+  %x = alloca <2 x i32>, align 8
+  %y = alloca [2 x i32], align 4
+  %zz = alloca <2 x double>, align 16
+  store <2 x i32> <i32 1, i32 2>, ptr %x, align 8
+  %0 = load <2 x i32>, ptr %x, align 8
+  %1 = extractelement <2 x i32> %0, i64 0
+  %2 = insertvalue [2 x i32] undef, i32 %1, 0
+  %3 = extractelement <2 x i32> %0, i64 1
+  %4 = insertvalue [2 x i32] %2, i32 %3, 1
+  store [2 x i32] %4, ptr %y, align 4
+  %5 = load <2 x i32>, ptr %y, align 4
+  %sifp = sitofp <2 x i32> %5 to <2 x double>
+  store <2 x double> %sifp, ptr %zz, align 16
+  %6 = load <2 x i32>, ptr %y, align 4
+  store <2 x i32> %6, ptr %x, align 8
+  ret void
+}
diff --git a/test/test_suite7/vector/vector_to_array_fail.c3 b/test/test_suite7/vector/vector_to_array_fail.c3
new file mode 100644
index 000000000..25ff8fe9e
--- /dev/null
+++ b/test/test_suite7/vector/vector_to_array_fail.c3
@@ -0,0 +1,13 @@
+module test;
+import std::io;
+fn void main()
+{
+	int[<2>] x = { 4, 7 };
+	int[2] y = x;
+	int[?] y1 = y;
+	int[?] y2 = x;
+	int[<?>] z = x;
+	int[<?>] w = y;
+	double[<2>] ww = x;
+	short[<2>] www = y; // #error: Implicitly casting 'int[2]' to 'short[<2>]'
+}
\ No newline at end of file
diff --git a/test/test_suite7/vector/vector_to_vector_const_fail.c3 b/test/test_suite7/vector/vector_to_vector_const_fail.c3
new file mode 100644
index 000000000..bd595d27d
--- /dev/null
+++ b/test/test_suite7/vector/vector_to_vector_const_fail.c3
@@ -0,0 +1,5 @@
+fn int main(String[] args)
+{
+	const double[4] ONE = { 1.0, 1.0, 1.0, 1.0 };
+	float[<4>] vec4 = ONE; // #error: Implicitly casting 'double[4]' to 'float[<4>]'
+}
\ No newline at end of file
diff --git a/test/test_suite7/visibility/ambiguous_recursive.c3 b/test/test_suite7/visibility/ambiguous_recursive.c3
new file mode 100644
index 000000000..66b5937f8
--- /dev/null
+++ b/test/test_suite7/visibility/ambiguous_recursive.c3
@@ -0,0 +1,33 @@
+module ttf::utilities;
+
+struct Point
+{
+    float x;
+    float z;
+    bitstruct : uint {
+        uint spl : 0..0;
+        uint onc : 1..1;
+        uint shd : 2..2;
+        uint res : 3..31;
+    }
+}
+
+module ttf;
+import std::io;
+struct Point (Printable) {
+    float x;
+    float y;
+    bitstruct : uint {
+        uint spl : 0..0;
+        uint onc : 1..1;
+        uint shd : 2..2;
+        uint res : 3..31;
+    }
+}
+
+module test;
+import ttf;
+fn void main()
+{
+	Point x = { .z = 2 }; // #error: resolve the ambiguity
+}
\ No newline at end of file
diff --git a/test/test_suite7/visibility/ambiguous_var.c3t b/test/test_suite7/visibility/ambiguous_var.c3t
new file mode 100644
index 000000000..9e27bb0c0
--- /dev/null
+++ b/test/test_suite7/visibility/ambiguous_var.c3t
@@ -0,0 +1,27 @@
+// #file: file1.c3
+module foo;
+
+int a;
+int b;
+
+// #file: file2.c3
+module bar;
+int a;
+int b;
+
+// #file: file3.c3
+
+module baz;
+import foo;
+import bar;
+
+int a;
+
+fn void test2()
+ @private{
+    int c = a;  // This is fine.
+    c = foo::b;
+    c = bar::b;
+    c = foo::a;
+    c = b; // #error: global variable needs a path prefix (e.g. 'foo::b')
+}
diff --git a/test/test_suite7/visibility/export_property.c3t b/test/test_suite7/visibility/export_property.c3t
new file mode 100644
index 000000000..3aa969ce4
--- /dev/null
+++ b/test/test_suite7/visibility/export_property.c3t
@@ -0,0 +1,39 @@
+// #target: macos-aarch64
+module test;
+fn void test(Test a) @export
+{
+}
+
+enum Abc
+{
+	ABC,
+	DEF
+}
+struct Test
+{
+	struct
+	{
+		int a;
+		int b;
+	}
+	bitstruct : int
+	{
+		int fa : 1..6;
+	}
+	Abc y;
+	int[?] x;
+}
+
+/* #expect: test.ll
+
+%.introspect = type { i8, i64, ptr, i64, i64, i64, [0 x i64] }
+%"char[]" = type { ptr, i64 }
+%Test = type { %.anon, i32, i32, [0 x i32] }
+%.anon = type { i32, i32 }
+
+@"$ct.test.$anon" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 8, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Test" = linkonce global %.introspect { i8 10, i64 0, ptr null, i64 16, i64 0, i64 4, [0 x i64] zeroinitializer }, align 8
+@.enum.ABC = internal constant [4 x i8] c"ABC\00", align 1
+@.enum.DEF = internal constant [4 x i8] c"DEF\00", align 1
+@"$ct.int" = linkonce global %.introspect { i8 2, i64 0, ptr null, i64 4, i64 0, i64 0, [0 x i64] zeroinitializer }, align 8
+@"$ct.test.Abc" = linkonce global { i8, i64, ptr, i64, i64, i64, [2 x %"char[]"] } { i8 8, i64 0, ptr null, i64 4, i64 ptrtoint (ptr @"$ct.int" to i64), i64 2, [2 x %"char[]"] [%"char[]" { ptr @.enum.ABC, i64 3 }, %"char[]" { ptr @.enum.DEF, i64 3 }] }, align 8
diff --git a/test/test_suite7/visibility/no_shared_imports.c3t b/test/test_suite7/visibility/no_shared_imports.c3t
new file mode 100644
index 000000000..3555ee02c
--- /dev/null
+++ b/test/test_suite7/visibility/no_shared_imports.c3t
@@ -0,0 +1,22 @@
+// #file: file1.c3
+module baz;
+
+fn void runBar()
+{
+    visible();
+    bar::barFunc(); // #error: 'bar::barFunc' could not be found, did you spell it right?
+}
+
+// #file: file2.c3
+module baz;
+import bar @public;
+
+fn void visible() @private
+{
+    bar::barFunc();
+}
+
+// #file: file3.c3
+module bar;
+
+fn void barFunc() @private {}
\ No newline at end of file
diff --git a/test/test_suite7/visibility/not_visible.c3t b/test/test_suite7/visibility/not_visible.c3t
new file mode 100644
index 000000000..d4cc2875d
--- /dev/null
+++ b/test/test_suite7/visibility/not_visible.c3t
@@ -0,0 +1,16 @@
+// #file: file1.c3
+module baz;
+import bar;
+
+fn void runBar()
+{
+    bar::notVisible(); // #error: 'bar::notVisible' is '@private'
+}
+
+// #file: file2.c3
+module bar;
+
+fn void notVisible()
+ @private{
+
+}
\ No newline at end of file
diff --git a/test/test_suite7/visibility/private_import.c3 b/test/test_suite7/visibility/private_import.c3
new file mode 100644
index 000000000..16fa409e7
--- /dev/null
+++ b/test/test_suite7/visibility/private_import.c3
@@ -0,0 +1,21 @@
+module foo;
+
+fn void hidden() @private
+{
+}
+
+module bar;
+import foo;
+
+fn void test()
+{
+    foo::hidden(); // #error: 'foo::hidden' is '@private'
+}
+
+module baz;
+import foo @public;
+
+fn void test()
+{
+    foo::hidden();
+}
\ No newline at end of file
diff --git a/test/test_suite7/visibility/private_import2.c3 b/test/test_suite7/visibility/private_import2.c3
new file mode 100644
index 000000000..b3032e6ee
--- /dev/null
+++ b/test/test_suite7/visibility/private_import2.c3
@@ -0,0 +1,27 @@
+module test;
+
+fn void bar() @private
+{
+}
+fn void bar2() @local
+{
+}
+
+module baz;
+import test @public;
+
+fn void abc()
+{
+	test::bar();
+	test::bar2(); // #error: could not be found
+}
+
+module baz2;
+
+import test;
+
+fn void abc()
+{
+	test::bar(); // #error: is '@private'
+	test::bar2(); // #error: could not be found
+}
\ No newline at end of file
diff --git a/test/test_suite7/visibility/private_to_extern.c3t b/test/test_suite7/visibility/private_to_extern.c3t
new file mode 100644
index 000000000..599c230ae
--- /dev/null
+++ b/test/test_suite7/visibility/private_to_extern.c3t
@@ -0,0 +1,21 @@
+// #target: macos-x64
+
+module test;
+import foo;
+
+fn int main(String[] args) {
+  foo::one();
+  return 0;
+}
+
+module foo;
+
+macro one() => two();
+macro two() => three();
+fn void three() @private { four(); }
+fn void four() @private {}
+
+/* #expect: foo.ll
+
+define void @foo.three()
+define internal void @foo.four()
\ No newline at end of file
diff --git a/test/test_suite7/visibility/shared_module.c3t b/test/test_suite7/visibility/shared_module.c3t
new file mode 100644
index 000000000..34daced46
--- /dev/null
+++ b/test/test_suite7/visibility/shared_module.c3t
@@ -0,0 +1,12 @@
+// #file: file1.c3
+module baz;
+
+fn void runBar()
+{
+    visible();
+}
+
+// #file: file2.c3
+module baz;
+
+fn void visible() @private {}
\ No newline at end of file
diff --git a/test/test_suite7/visibility/simple_visibility.c3t b/test/test_suite7/visibility/simple_visibility.c3t
new file mode 100644
index 000000000..a88afec45
--- /dev/null
+++ b/test/test_suite7/visibility/simple_visibility.c3t
@@ -0,0 +1,16 @@
+// #file: file1.c3
+module baz;
+import bar;
+
+fn void runBar()
+{
+    bar::visible();
+}
+
+// #file: file2.c3
+module bar;
+
+fn void visible()
+{
+
+}
diff --git a/test/unit/stdlib/collections/priorityqueue.c3 b/test/unit/stdlib/collections/priorityqueue.c3
index 44bd0c7bc..671c93a2d 100644
--- a/test/unit/stdlib/collections/priorityqueue.c3
+++ b/test/unit/stdlib/collections/priorityqueue.c3
@@ -2,7 +2,7 @@ module priorityqueue_test @test;
 import std::collections;
 import std::collections::priorityqueue;
 
-def Queue = PriorityQueue(<int>);
+def Queue = PriorityQueue{int};
 
 fn void priorityqueue()
 {
@@ -32,7 +32,7 @@ fn void priorityqueue()
     assert(x == 3, "got %d; want %d", x, 3);
 }
 
-def QueueMax = PriorityQueueMax(<int>);
+def QueueMax = PriorityQueueMax{int};
 
 fn void priorityqueue_max()
 {