| //===-- SizeOpts.cpp - code size optimization related code ----------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains some shared code size optimization related code. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Transforms/Utils/SizeOpts.h" |
| |
| using namespace llvm; |
| |
| cl::opt<bool> EnablePGSO( |
| "pgso", cl::Hidden, cl::init(true), |
| cl::desc("Enable the profile guided size optimizations. ")); |
| |
| cl::opt<bool> PGSOLargeWorkingSetSizeOnly( |
| "pgso-lwss-only", cl::Hidden, cl::init(true), |
| cl::desc("Apply the profile guided size optimizations only " |
| "if the working set size is large (except for cold code.)")); |
| |
| cl::opt<bool> PGSOColdCodeOnly( |
| "pgso-cold-code-only", cl::Hidden, cl::init(true), |
| cl::desc("Apply the profile guided size optimizations only " |
| "to cold code.")); |
| |
| cl::opt<bool> PGSOIRPassOrTestOnly( |
| "pgso-ir-pass-or-test-only", cl::Hidden, cl::init(false), |
| cl::desc("Apply the profile guided size optimizations only" |
| "to the IR passes or tests.")); |
| |
| cl::opt<bool> ForcePGSO( |
| "force-pgso", cl::Hidden, cl::init(false), |
| cl::desc("Force the (profiled-guided) size optimizations. ")); |
| |
| cl::opt<int> PgsoCutoffInstrProf( |
| "pgso-cutoff-instr-prof", cl::Hidden, cl::init(250000), cl::ZeroOrMore, |
| cl::desc("The profile guided size optimization profile summary cutoff " |
| "for instrumentation profile.")); |
| |
| cl::opt<int> PgsoCutoffSampleProf( |
| "pgso-cutoff-sample-prof", cl::Hidden, cl::init(800000), cl::ZeroOrMore, |
| cl::desc("The profile guided size optimization profile summary cutoff " |
| "for sample profile.")); |
| |
| namespace { |
| struct BasicBlockBFIAdapter { |
| static bool isFunctionColdInCallGraph(const Function *F, |
| ProfileSummaryInfo *PSI, |
| BlockFrequencyInfo &BFI) { |
| return PSI->isFunctionColdInCallGraph(F, BFI); |
| } |
| static bool isFunctionHotInCallGraphNthPercentile(int CutOff, |
| const Function *F, |
| ProfileSummaryInfo *PSI, |
| BlockFrequencyInfo &BFI) { |
| return PSI->isFunctionHotInCallGraphNthPercentile(CutOff, F, BFI); |
| } |
| static bool isColdBlock(const BasicBlock *BB, |
| ProfileSummaryInfo *PSI, |
| BlockFrequencyInfo *BFI) { |
| return PSI->isColdBlock(BB, BFI); |
| } |
| static bool isHotBlockNthPercentile(int CutOff, |
| const BasicBlock *BB, |
| ProfileSummaryInfo *PSI, |
| BlockFrequencyInfo *BFI) { |
| return PSI->isHotBlockNthPercentile(CutOff, BB, BFI); |
| } |
| }; |
| } // end anonymous namespace |
| |
| bool llvm::shouldOptimizeForSize(const Function *F, ProfileSummaryInfo *PSI, |
| BlockFrequencyInfo *BFI, |
| PGSOQueryType QueryType) { |
| return shouldFuncOptimizeForSizeImpl<BasicBlockBFIAdapter>(F, PSI, BFI, |
| QueryType); |
| } |
| |
| bool llvm::shouldOptimizeForSize(const BasicBlock *BB, ProfileSummaryInfo *PSI, |
| BlockFrequencyInfo *BFI, |
| PGSOQueryType QueryType) { |
| return shouldOptimizeForSizeImpl<BasicBlockBFIAdapter>(BB, PSI, BFI, |
| QueryType); |
| } |