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Change function pass manager passes

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This commit is contained in:
gingerBill
2021-04-22 13:54:26 +01:00
parent 7fcd5ecbd5
commit 1c9f48031d
2 changed files with 43 additions and 4 deletions
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6
src/llvm_backend.cpp
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@@ -14030,9 +14030,9 @@ void lb_generate_code(lbGenerator *gen) {
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);
lb_populate_function_pass_manager_specific(function_pass_manager_minimal, 0);
lb_populate_function_pass_manager_specific(function_pass_manager_size, 1);
lb_populate_function_pass_manager_specific(function_pass_manager_speed, 2);
LLVMFinalizeFunctionPassManager(default_function_pass_manager);
LLVMFinalizeFunctionPassManager(function_pass_manager_minimal);

41
src/llvm_backend_opt.cpp
View File

@@ -1,6 +1,7 @@
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_populate_function_pass_manager_specific(LLVMPassManagerRef fpm, i32 optimization_level);
void lb_basic_populate_function_pass_manager(LLVMPassManagerRef fpm) {
LLVMAddPromoteMemoryToRegisterPass(fpm);
@@ -28,8 +29,46 @@ void lb_populate_function_pass_manager(LLVMPassManagerRef fpm, bool ignore_memcp
return;
}
#if 1
#if 0
LLVMPassManagerBuilderRef pmb = LLVMPassManagerBuilderCreate();
LLVMPassManagerBuilderSetOptLevel(pmb, optimization_level);
LLVMPassManagerBuilderSetSizeLevel(pmb, optimization_level);
LLVMPassManagerBuilderPopulateFunctionPassManager(pmb, fpm);
#else
LLVMAddMemCpyOptPass(fpm);
LLVMAddPromoteMemoryToRegisterPass(fpm);
LLVMAddMergedLoadStoreMotionPass(fpm);
LLVMAddConstantPropagationPass(fpm);
LLVMAddEarlyCSEPass(fpm);
LLVMAddConstantPropagationPass(fpm);
LLVMAddMergedLoadStoreMotionPass(fpm);
LLVMAddPromoteMemoryToRegisterPass(fpm);
LLVMAddCFGSimplificationPass(fpm);
LLVMAddSCCPPass(fpm);
LLVMAddPromoteMemoryToRegisterPass(fpm);
LLVMAddUnifyFunctionExitNodesPass(fpm);
LLVMAddCFGSimplificationPass(fpm);
LLVMAddEarlyCSEPass(fpm);
LLVMAddLowerExpectIntrinsicPass(fpm);
#endif
}
void lb_populate_function_pass_manager_specific(LLVMPassManagerRef fpm, 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 (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);