Remove support for LLVM 17 and 18. Update to 0.7.11

.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 

releasenotes.md

@@ -1,5 +1,16 @@
 # C3C Release Notes
 
+## 0.7.11 Change list
+
+### Changes / improvements
+- Removed support for LLVM 17, 18.
+
+### Stdlib changes
+None
+
+### Fixes
+None
+
 ## 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/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 PRERELEASE 0
+#define COMPILER_VERSION "0.7.11"
+#define PRERELEASE 1

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;