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Add -microarch:<string> (e.g. -microarch:native)

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gingerBill
2020-10-20 12:25:11 +01:00
parent b1bdd95f19
commit 0be6ddc7e2
5 changed files with 67 additions and 9 deletions
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src/llvm_backend.cpp
+16 -1
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@@ -11858,7 +11858,21 @@ void lb_generate_code(lbGenerator *gen) {
code_mode = LLVMCodeModelJITDefault;
}
LLVMTargetMachineRef target_machine = LLVMCreateTargetMachine(target, target_triple, "generic", "", LLVMCodeGenLevelNone, LLVMRelocDefault, code_mode);
char const *host_cpu_name = LLVMGetHostCPUName();
char const *llvm_cpu = "generic";
char const *llvm_features = "";
if (build_context.microarch.len != 0) {
if (build_context.microarch == "native") {
llvm_cpu = host_cpu_name;
} else {
llvm_cpu = alloc_cstring(heap_allocator(), build_context.microarch);
}
if (gb_strcmp(llvm_cpu, host_cpu_name) == 0) {
llvm_features = LLVMGetHostCPUFeatures();
}
}
LLVMTargetMachineRef target_machine = LLVMCreateTargetMachine(target, target_triple, llvm_cpu, llvm_features, LLVMCodeGenLevelNone, LLVMRelocDefault, code_mode);
defer (LLVMDisposeTargetMachine(target_machine));
LLVMSetModuleDataLayout(mod, LLVMCreateTargetDataLayout(target_machine));
@@ -12424,6 +12438,7 @@ void lb_generate_code(lbGenerator *gen) {
defer (LLVMDisposePassManager(module_pass_manager));
LLVMAddAlwaysInlinerPass(module_pass_manager);
LLVMAddStripDeadPrototypesPass(module_pass_manager);
LLVMAddAnalysisPasses(target_machine, module_pass_manager);
// if (build_context.optimization_level >= 2) {
// LLVMAddArgumentPromotionPass(module_pass_manager);
// LLVMAddConstantMergePass(module_pass_manager);