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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);
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) {
lb_basic_populate_function_pass_manager(fpm);
return;
} else if (optimization_level == 0) {
LLVMAddMemCpyOptPass(fpm);
lb_basic_populate_function_pass_manager(fpm);
return;
}
#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);
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_add_function_simplifcation_passes(LLVMPassManagerRef mpm, i32 optimization_level) {
LLVMAddEarlyCSEMemSSAPass(mpm);
LLVMAddGVNPass(mpm);
LLVMAddCFGSimplificationPass(mpm);
LLVMAddJumpThreadingPass(mpm);
// if (optimization_level > 2) {
// LLVMAddAggressiveInstCombinerPass(mpm);
// }
LLVMAddInstructionCombiningPass(mpm);
LLVMAddSimplifyLibCallsPass(mpm);
LLVMAddTailCallEliminationPass(mpm);
LLVMAddCFGSimplificationPass(mpm);
LLVMAddReassociatePass(mpm);
LLVMAddLoopRotatePass(mpm);
LLVMAddLICMPass(mpm);
LLVMAddLoopUnswitchPass(mpm);
LLVMAddCFGSimplificationPass(mpm);
LLVMAddInstructionCombiningPass(mpm);
LLVMAddIndVarSimplifyPass(mpm);
LLVMAddLoopIdiomPass(mpm);
LLVMAddLoopDeletionPass(mpm);
LLVMAddLoopUnrollPass(mpm);
LLVMAddMergedLoadStoreMotionPass(mpm);
LLVMAddGVNPass(mpm);
LLVMAddMemCpyOptPass(mpm);
LLVMAddSCCPPass(mpm);
LLVMAddBitTrackingDCEPass(mpm);
LLVMAddInstructionCombiningPass(mpm);
LLVMAddJumpThreadingPass(mpm);
LLVMAddCorrelatedValuePropagationPass(mpm);
LLVMAddDeadStoreEliminationPass(mpm);
LLVMAddLICMPass(mpm);
LLVMAddLoopRerollPass(mpm);
LLVMAddAggressiveDCEPass(mpm);
LLVMAddCFGSimplificationPass(mpm);
LLVMAddInstructionCombiningPass(mpm);
}
void lb_populate_module_pass_manager(LLVMTargetMachineRef target_machine, LLVMPassManagerRef mpm, 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);
LLVMAddAlwaysInlinerPass(mpm);
LLVMAddStripDeadPrototypesPass(mpm);
LLVMAddAnalysisPasses(target_machine, mpm);
LLVMAddPruneEHPass(mpm);
if (optimization_level == 0) {
return;
}
LLVMAddGlobalDCEPass(mpm);
if (optimization_level >= 2) {
// NOTE(bill, 2021-03-29: use this causes invalid code generation)
// LLVMPassManagerBuilderRef pmb = LLVMPassManagerBuilderCreate();
// LLVMPassManagerBuilderSetOptLevel(pmb, optimization_level);
// LLVMPassManagerBuilderPopulateModulePassManager(pmb, mpm);
// LLVMPassManagerBuilderPopulateLTOPassManager(pmb, mpm, false, true);
// return;
}
LLVMAddIPSCCPPass(mpm);
LLVMAddCalledValuePropagationPass(mpm);
LLVMAddGlobalOptimizerPass(mpm);
LLVMAddDeadArgEliminationPass(mpm);
// LLVMAddConstantMergePass(mpm); // ???
LLVMAddInstructionCombiningPass(mpm);
LLVMAddCFGSimplificationPass(mpm);
LLVMAddPruneEHPass(mpm);
if (optimization_level < 2) {
return;
}
LLVMAddFunctionInliningPass(mpm);
lb_add_function_simplifcation_passes(mpm, optimization_level);
LLVMAddGlobalDCEPass(mpm);
LLVMAddGlobalOptimizerPass(mpm);
// LLVMAddLowerConstantIntrinsicsPass(mpm);
LLVMAddLoopRotatePass(mpm);
LLVMAddLoopVectorizePass(mpm);
LLVMAddInstructionCombiningPass(mpm);
if (optimization_level >= 2) {
LLVMAddEarlyCSEPass(mpm);
LLVMAddCorrelatedValuePropagationPass(mpm);
LLVMAddLICMPass(mpm);
LLVMAddLoopUnswitchPass(mpm);
LLVMAddCFGSimplificationPass(mpm);
LLVMAddInstructionCombiningPass(mpm);
}
LLVMAddCFGSimplificationPass(mpm);
LLVMAddSLPVectorizePass(mpm);
LLVMAddLICMPass(mpm);
LLVMAddAlignmentFromAssumptionsPass(mpm);
LLVMAddStripDeadPrototypesPass(mpm);
if (optimization_level >= 2) {
LLVMAddGlobalDCEPass(mpm);
LLVMAddConstantMergePass(mpm);
}
LLVMAddCFGSimplificationPass(mpm);
}
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