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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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37
src/llvm_backend.cpp
View File

@@ -14016,11 +14016,28 @@ void lb_generate_code(lbGenerator *gen) {
LLVMPassRegistryRef pass_registry = LLVMGetGlobalPassRegistry();
LLVMPassManagerRef default_function_pass_manager = LLVMCreateFunctionPassManagerForModule(mod);
LLVMPassManagerRef function_pass_manager_minimal = LLVMCreateFunctionPassManagerForModule(mod);
LLVMPassManagerRef function_pass_manager_size = LLVMCreateFunctionPassManagerForModule(mod);
LLVMPassManagerRef function_pass_manager_speed = LLVMCreateFunctionPassManagerForModule(mod);
defer (LLVMDisposePassManager(default_function_pass_manager));
defer (LLVMDisposePassManager(function_pass_manager_minimal));
defer (LLVMDisposePassManager(function_pass_manager_size));
defer (LLVMDisposePassManager(function_pass_manager_speed));
LLVMInitializeFunctionPassManager(default_function_pass_manager);
LLVMInitializeFunctionPassManager(function_pass_manager_minimal);
LLVMInitializeFunctionPassManager(function_pass_manager_size);
LLVMInitializeFunctionPassManager(function_pass_manager_speed);
lb_populate_function_pass_manager(default_function_pass_manager, false, build_context.optimization_level);
lb_populate_function_pass_manager(function_pass_manager_minimal, false, 0);
lb_populate_function_pass_manager(function_pass_manager_size, false, 1);
lb_populate_function_pass_manager(function_pass_manager_speed, false, 2);
LLVMFinalizeFunctionPassManager(default_function_pass_manager);
LLVMFinalizeFunctionPassManager(function_pass_manager_minimal);
LLVMFinalizeFunctionPassManager(function_pass_manager_size);
LLVMFinalizeFunctionPassManager(function_pass_manager_speed);
LLVMPassManagerRef default_function_pass_manager_without_memcpy = LLVMCreateFunctionPassManagerForModule(mod);
@@ -14330,7 +14347,25 @@ void lb_generate_code(lbGenerator *gen) {
if (p->flags & lbProcedureFlag_WithoutMemcpyPass) {
LLVMRunFunctionPassManager(default_function_pass_manager_without_memcpy, p->value);
} else {
LLVMRunFunctionPassManager(default_function_pass_manager, p->value);
if (p->entity && p->entity->kind == Entity_Procedure) {
switch (p->entity->Procedure.optimization_mode) {
case ProcedureOptimizationMode_None:
case ProcedureOptimizationMode_Minimal:
LLVMRunFunctionPassManager(function_pass_manager_minimal, p->value);
break;
case ProcedureOptimizationMode_Size:
LLVMRunFunctionPassManager(function_pass_manager_size, p->value);
break;
case ProcedureOptimizationMode_Speed:
LLVMRunFunctionPassManager(function_pass_manager_speed, p->value);
break;
default:
LLVMRunFunctionPassManager(default_function_pass_manager, p->value);
break;
}
} else {
LLVMRunFunctionPassManager(default_function_pass_manager, p->value);
}
}
}
}

42
src/llvm_backend_opt.cpp
View File

@@ -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);