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Change how lb_populate_function_pass_manager works by using the default LLVM passes when not using minimal optimizations

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gingerBill
2021-04-22 12:35:01 +01:00
parent b68b090f13
commit 7fcd5ecbd5
2 changed files with 67 additions and 12 deletions
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42
src/llvm_backend_opt.cpp
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@@ -1,11 +1,41 @@
void lb_populate_function_pass_manager(LLVMPassManagerRef fpm, bool ignore_memcpy_pass, i32 optimization_level);
void lb_add_function_simplifcation_passes(LLVMPassManagerRef mpm, i32 optimization_level);
void lb_populate_module_pass_manager(LLVMTargetMachineRef target_machine, LLVMPassManagerRef mpm, i32 optimization_level);
void lb_basic_populate_function_pass_manager(LLVMPassManagerRef fpm) {
LLVMAddPromoteMemoryToRegisterPass(fpm);
LLVMAddMergedLoadStoreMotionPass(fpm);
LLVMAddConstantPropagationPass(fpm);
LLVMAddEarlyCSEPass(fpm);
LLVMAddConstantPropagationPass(fpm);
LLVMAddMergedLoadStoreMotionPass(fpm);
LLVMAddPromoteMemoryToRegisterPass(fpm);
LLVMAddCFGSimplificationPass(fpm);
}
void lb_populate_function_pass_manager(LLVMPassManagerRef fpm, bool ignore_memcpy_pass, i32 optimization_level) {
// NOTE(bill): Treat -opt:3 as if it was -opt:2
// TODO(bill): Determine which opt definitions should exist in the first place
optimization_level = gb_clamp(optimization_level, 0, 2);
if (!ignore_memcpy_pass) {
if (ignore_memcpy_pass) {
lb_basic_populate_function_pass_manager(fpm);
return;
} else if (optimization_level == 0) {
LLVMAddMemCpyOptPass(fpm);
lb_basic_populate_function_pass_manager(fpm);
return;
}
#if 1
LLVMPassManagerBuilderRef pmb = LLVMPassManagerBuilderCreate();
LLVMPassManagerBuilderSetOptLevel(pmb, optimization_level);
LLVMPassManagerBuilderSetSizeLevel(pmb, optimization_level);
LLVMPassManagerBuilderPopulateFunctionPassManager(pmb, fpm);
#else
LLVMAddMemCpyOptPass(fpm);
LLVMAddPromoteMemoryToRegisterPass(fpm);
LLVMAddMergedLoadStoreMotionPass(fpm);
LLVMAddConstantPropagationPass(fpm);
@@ -16,16 +46,6 @@ void lb_populate_function_pass_manager(LLVMPassManagerRef fpm, bool ignore_memcp
LLVMAddPromoteMemoryToRegisterPass(fpm);
LLVMAddCFGSimplificationPass(fpm);
// LLVMAddSLPVectorizePass(fpm);
// LLVMAddLoopVectorizePass(fpm);
// LLVMAddScalarizerPass(fpm);
// LLVMAddLoopIdiomPass(fpm);
if (optimization_level == 0) {
return;
}
#if 1
LLVMAddSCCPPass(fpm);
LLVMAddPromoteMemoryToRegisterPass(fpm);