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Add extra optimization level pass -opt:2 in lb_populate_module_pass_manager

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gingerBill
2021-04-01 10:31:46 +01:00
parent 54e6c50769
commit 491b282615
1 changed files with 8 additions and 9 deletions
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src/llvm_backend_opt.cpp
+8 -9
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@@ -95,15 +95,6 @@ void lb_populate_module_pass_manager(LLVMTargetMachineRef target_machine, LLVMPa
// TODO(bill): Determine which opt definitions should exist in the first place // TODO(bill): Determine which opt definitions should exist in the first place
optimization_level = gb_clamp(optimization_level, 0, 2); optimization_level = gb_clamp(optimization_level, 0, 2);
if (optimization_level >= 2) {
// NOTE(bill, 2021-03-29: use this causes invalid code generation)
// LLVMPassManagerBuilderRef pmb = LLVMPassManagerBuilderCreate();
// LLVMPassManagerBuilderPopulateModulePassManager(pmb, mpm);
// LLVMPassManagerBuilderPopulateLTOPassManager(pmb, mpm, false, true);
// LLVMPassManagerBuilderSetOptLevel(pmb, optimization_level);
// LLVMPassManagerBuilderSetSizeLevel(pmb, optimization_level);
}
LLVMAddAlwaysInlinerPass(mpm); LLVMAddAlwaysInlinerPass(mpm);
LLVMAddStripDeadPrototypesPass(mpm); LLVMAddStripDeadPrototypesPass(mpm);
LLVMAddAnalysisPasses(target_machine, mpm); LLVMAddAnalysisPasses(target_machine, mpm);
@@ -114,6 +105,14 @@ void lb_populate_module_pass_manager(LLVMTargetMachineRef target_machine, LLVMPa
LLVMAddGlobalDCEPass(mpm); LLVMAddGlobalDCEPass(mpm);
if (optimization_level >= 2) {
// NOTE(bill, 2021-03-29: use this causes invalid code generation)
LLVMPassManagerBuilderRef pmb = LLVMPassManagerBuilderCreate();
LLVMPassManagerBuilderPopulateModulePassManager(pmb, mpm);
LLVMPassManagerBuilderPopulateLTOPassManager(pmb, mpm, false, true);
LLVMPassManagerBuilderSetOptLevel(pmb, optimization_level);
// LLVMPassManagerBuilderSetSizeLevel(pmb, optimization_level);
}
LLVMAddIPSCCPPass(mpm); LLVMAddIPSCCPPass(mpm);
LLVMAddCalledValuePropagationPass(mpm); LLVMAddCalledValuePropagationPass(mpm);