Tabs / spaces fix

.github/workflows/main.yml

@@ -401,7 +401,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        llvm_version: [17, 18, 19, 20]
+        llvm_version: [19, 20]
     steps:
       - uses: actions/checkout@v6
 

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.20)
 
-set(C3_LLVM_MIN_VERSION 17)
+set(C3_LLVM_MIN_VERSION 19)
 set(C3_LLVM_MAX_VERSION 22)
 set(C3_LLVM_DEFAULT_VERSION 21)
 

README.md

@@ -366,7 +366,7 @@ See the `build-with-docker.sh` script for more information on other configurable
 #### Installing on OS X using Homebrew
 
 1. Install [Homebrew](https://brew.sh/)
-2. Install LLVM 17+: `brew install llvm`
+2. Install LLVM 19+: `brew install llvm`
 3. Install lld: `brew install lld`
 4. Install CMake: `brew install cmake`
 5. Clone the C3C github repository: `git clone https://github.com/c3lang/c3c.git`
@@ -505,7 +505,7 @@ After compilation, the `c3c` binary will be located in the `build` directory. Yo
 #### Compiling on other Linux / Unix variants
 
 1. Install CMake.
-2. Install or compile LLVM and LLD *libraries* (version 17+ or higher)
+2. Install or compile LLVM and LLD *libraries* (version 19+ or higher)
 3. Clone the C3C github repository: `git clone https://github.com/c3lang/c3c.git`
 4. Enter the C3C directory `cd c3c`.
 5. Set up CMake build for debug: `cmake -B build -S .`. At this point you may need to manually 

lib/std/core/builtin.c3

@@ -317,6 +317,9 @@ macro any.retype_to(&self, typeid type)
 	return $$any_make(self.ptr, type);
 }
 
+<*
+ @require (bool)self.type : "A typed any was expected"
+*>
 macro any.as_inner(&self)
 {
 	return $$any_make(self.ptr, self.type.inner);

lib/std/core/types.c3

@@ -7,6 +7,7 @@ faultdef VALUE_OUT_OF_RANGE, VALUE_OUT_OF_UNSIGNED_RANGE;
 
 <*
  @require $Type.kindof.is_int() : "Type was not an integer"
+ @require (bool)v.type : "The value was empty"
  @require v.type.kindof == ENUM : "Value was not an enum"
 *>
 macro any_to_enum_ordinal(any v, $Type)
@@ -16,6 +17,7 @@ macro any_to_enum_ordinal(any v, $Type)
 
 <*
  @require $Type.kindof.is_int() : "Type was not an integer"
+ @require (bool)v.type : "The value was empty"
  @require v.type.kindof.is_int() : "Value was not an integer"
 *>
 macro any_to_int(any v, $Type)

releasenotes.md

@@ -1,5 +1,17 @@
 # C3C Release Notes
 
+## 0.7.11 Change list
+
+### Changes / improvements
+- Removed support for LLVM 17, 18.
+- Detect large temporaries when creating slices on the stack #2665
+
+### Stdlib changes
+- Add contract on `any_to_enum_ordinal` and `any_to_int` to improve error when passed an empty any. #2977
+
+### Fixes
+- `@deprecated` in function contracts would be processed twice, causing a compilation error despite being correct.
+
 ## 0.7.10 Change list
 
 ### Changes / improvements

src/compiler/llvm_codegen.c

@@ -835,11 +835,7 @@ static void llvm_codegen_setup()
 	intrinsic_id.fshl = lookup_intrinsic("llvm.fshl");
 	intrinsic_id.fshr = lookup_intrinsic("llvm.fshr");
 	intrinsic_id.gather = lookup_intrinsic("llvm.masked.gather");
-#if LLVM_VERSION_MAJOR < 16
-	intrinsic_id.get_rounding = lookup_intrinsic("llvm.flt.rounds");
-#else
 	intrinsic_id.get_rounding = lookup_intrinsic("llvm.get.rounding");
-#endif
 	intrinsic_id.lifetime_end = lookup_intrinsic("llvm.lifetime.end");
 	intrinsic_id.lifetime_start = lookup_intrinsic("llvm.lifetime.start");
 	intrinsic_id.llrint = lookup_intrinsic("llvm.llrint");

src/compiler/llvm_codegen_debug_info.c

@@ -113,35 +113,20 @@ void llvm_emit_debug_function(GenContext *c, Decl *decl)
 
 static void llvm_emit_debug_value(GenContext *c, LLVMValueRef value, LLVMMetadataRef debug_val, unsigned row, unsigned col, LLVMMetadataRef scope)
 {
-#if LLVM_VERSION_MAJOR < 19
-	LLVMDIBuilderInsertDbgValueAtEnd(c->debug.builder, value, debug_val,
-	                                 LLVMDIBuilderCreateExpression(c->debug.builder, NULL, 0),
-	                                 llvm_create_debug_location_with_inline(c, row, col, c->debug.function),
-	                                 LLVMGetInsertBlock(c->builder));
-#else
 	LLVMDIBuilderInsertDbgValueRecordAtEnd(c->debug.builder, value, debug_val,
 									 LLVMDIBuilderCreateExpression(c->debug.builder, NULL, 0),
 									 llvm_create_debug_location_with_inline(c, row, col, c->debug.function),
 									 LLVMGetInsertBlock(c->builder));
-#endif
 }
 
 
 static void llvm_emit_debug_declare(GenContext *c, LLVMValueRef var, LLVMMetadataRef debug_var, unsigned row, unsigned col, LLVMMetadataRef scope)
 {
-#if LLVM_VERSION_MAJOR < 19
-	LLVMDIBuilderInsertDeclareAtEnd(c->debug.builder,
-	                                var, debug_var,
-	                                LLVMDIBuilderCreateExpression(c->debug.builder, NULL, 0),
-	                                llvm_create_debug_location_with_inline(c, row, col, scope),
-	                                LLVMGetInsertBlock(c->builder));
-#else
 	LLVMDIBuilderInsertDeclareRecordAtEnd(c->debug.builder,
 	                                var, debug_var,
 	                                LLVMDIBuilderCreateExpression(c->debug.builder, NULL, 0),
 	                                llvm_create_debug_location_with_inline(c, row, col, scope),
 	                                LLVMGetInsertBlock(c->builder));
-#endif
 }
 
 void llvm_emit_debug_local_var(GenContext *c, Decl *decl)

src/compiler/parse_global.c

@@ -1958,6 +1958,7 @@ static bool parse_element_contract(ParseContext *c, ContractDescription *contrac
 INLINE void attach_deprecation_from_contract(ParseContext *c, ContractDescription *contract, Decl *decl)
 {
 	if (contract->deprecated) vec_add(decl->attributes, contract->deprecated);
+	contract->deprecated = NULL;
 }
 
 /**
@@ -3649,6 +3650,7 @@ Decl *parse_top_level_statement(ParseContext *c, ParseContext **context_out)
 			break;
 		case TOKEN_FN:
 			decl = parse_func_definition(c, &contracts, c->unit->is_interface_file ? FUNC_PARSE_C3I : FUNC_PARSE_REGULAR);
+
 			break;
 		case TOKEN_CT_ASSERT:
 			{

src/compiler/sema_initializers.c

@@ -843,7 +843,6 @@ ConstInitializer *sema_merge_bitstruct_const_initializers(ConstInitializer *lhs,
 
 bool sema_expr_analyse_initializer_list(SemaContext *context, Type *to, Expr *expr, bool *no_match_ref)
 {
-
 	if (!to) to = type_untypedlist;
 	ASSERT(to);
 	Type *flattened = type_flatten(to);
@@ -881,6 +880,16 @@ bool sema_expr_analyse_initializer_list(SemaContext *context, Type *to, Expr *ex
 			// Resolve this as an inferred array.
 			Type *type = type_get_inferred_array(flattened->array.base);
 			if (!sema_expr_analyse_initializer(context, type, type, expr, no_match_ref)) return false;
+			if (context->call_env.kind == CALL_ENV_FUNCTION && type_size(expr->type) > compiler.build.max_stack_object_size * 1024)
+			{
+				size_t size = type_size(expr->type);
+				RETURN_SEMA_ERROR(
+					expr, "The size of this stack allocated expression (%s%d Kb) exceeds the maximum allowed stack object size (%d Kb), "
+					"you can increase this limit with --max-stack-object-size, but be aware that too large objects "
+					"allocated on the stack may lead to the stack running out of memory.", size % 1024 == 0 ? "" : "over ",
+					size / 1024,
+					compiler.build.max_stack_object_size);
+			}
 			if (expr_is_const_initializer(expr))
 			{
 				ConstInitializer *init = expr->const_expr.initializer;
@@ -931,6 +940,7 @@ bool sema_expr_analyse_initializer_list(SemaContext *context, Type *to, Expr *ex
 NO_MATCH:
 	*no_match_ref = true;
 	return false;
+
 }
 
 void const_init_rewrite_to_value(ConstInitializer *const_init, Expr *value)

src/compiler/target.c

@@ -1689,11 +1689,6 @@ static AlignData os_target_alignment_of_int(OsType os, ArchType arch, uint32_t b
 		case ARCH_TYPE_XTENSA:
 			return (AlignData) { MIN(64u, bits), MIN(64u, bits) };
 		case ARCH_TYPE_X86_64:
-#if LLVM_AVAILABLE && LLVM_VERSION_MAJOR < 18
-			return (AlignData) { MIN(64u, bits), MIN(64u, bits) };
-#else
-			FALLTHROUGH;
-#endif
 		case ARCH_TYPE_RISCV64:
 			return (AlignData) { bits, bits };
 		case ARCH_TYPE_WASM64:
@@ -1709,9 +1704,7 @@ static AlignData os_target_alignment_of_int(OsType os, ArchType arch, uint32_t b
 			return (AlignData) { bits, bits };
 		case ARCH_TYPE_X86:
 			if (bits <= 32) return (AlignData) { bits, bits };
-#if !LLVM_AVAILABLE || LLVM_VERSION_MAJOR > 17
 			if (bits == 128) return (AlignData) { 128, 128 };
-#endif
 			if (os == OS_TYPE_ELFIAMCU) return (AlignData) { 32, 32 };
 			if (os == OS_TYPE_WIN32 || os == OS_TYPE_NACL) return (AlignData) { 64, 64 };
 			return (AlignData) { 32, 64 };

src/version.h

@@ -1,2 +1,2 @@
-#define COMPILER_VERSION "0.7.10"
+#define COMPILER_VERSION "0.7.11"
-#define PRERELEASE 0
+#define PRERELEASE 1

test/test_suite/slices/huge_temp_slice.c3

@@ -0,0 +1,10 @@
+module main;
+
+char[] one_mb2 = { [0..(1024*1024)-1] = 0xA5 };
+fn int main()
+{
+	char[] one_mb;
+	one_mb = { [0..(1024*1024)-1] = 0xA5 }; // #error: The size of this stack allocated expression
+	one_mb2 = { [0..(1024*1024)-1] = 0xA5 }; // #error: The size of this stack allocated expression
+	return 0;
+}

wrapper/src/wrapper.cpp

@@ -29,7 +29,7 @@
 #include "llvm/Transforms/Scalar/JumpThreading.h"
 #include "llvm/Transforms/InstCombine/InstCombine.h"
 #include "llvm/Analysis/GlobalsModRef.h"
-static_assert(LLVM_VERSION_MAJOR >= 17, "Unsupported LLVM version, 17+ is needed.");
+static_assert(LLVM_VERSION_MAJOR >= 19, "Unsupported LLVM version, 19+ is needed.");
 
 #define LINK_SIG \
 bool link(llvm::ArrayRef<const char *> args, llvm::raw_ostream &stdoutOS, \
@@ -96,9 +96,7 @@ static bool llvm_link(ObjFormat format, const char **args, int arg_count, const
 	for (int i = 0; i < arg_count; i++) arg_vector.push_back(strdup(args[i]));
 	std::string output_string {};
 	std::string output_err_string {};
-	/*
+
-	llvm::raw_string_ostream output { output_string };
-	llvm::raw_string_ostream output_err { output_err_string };*/
 	llvm::raw_ostream &output = llvm::outs();
 	llvm::raw_ostream &output_err = llvm::errs();
 	bool success;
@@ -154,9 +152,8 @@ bool llvm_run_passes(LLVMModuleRef m, LLVMTargetMachineRef tm, LLVMPasses *passe
 	PTO.SLPVectorization = passes->opt.slp_vectorize;
 	PTO.MergeFunctions = passes->opt.merge_functions;
 	PTO.CallGraphProfile = true; // We always use integrated ASM
-#if LLVM_VERSION_MAJOR > 16
 	PTO.UnifiedLTO = false;
-#endif
+
 	llvm::PassBuilder PB(Machine, PTO, std::nullopt, &PIC);
 
 	llvm::LoopAnalysisManager LAM;