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//===-- 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(false),
cl::desc("Apply the profile guided size optimizations only "
"to cold code."));
cl::opt<bool> PGSOColdCodeOnlyForInstrPGO(
"pgso-cold-code-only-for-instr-pgo", cl::Hidden, cl::init(false),
cl::desc("Apply the profile guided size optimizations only "
"to cold code under instrumentation PGO."));
cl::opt<bool> PGSOColdCodeOnlyForSamplePGO(
"pgso-cold-code-only-for-sample-pgo", cl::Hidden, cl::init(false),
cl::desc("Apply the profile guided size optimizations only "
"to cold code under sample PGO."));
cl::opt<bool> PGSOColdCodeOnlyForPartialSamplePGO(
"pgso-cold-code-only-for-partial-sample-pgo", cl::Hidden, cl::init(false),
cl::desc("Apply the profile guided size optimizations only "
"to cold code under partial-profile sample PGO."));
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(950000), 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(990000), 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 isFunctionColdInCallGraphNthPercentile(int CutOff,
const Function *F,
ProfileSummaryInfo *PSI,
BlockFrequencyInfo &BFI) {
return PSI->isFunctionColdInCallGraphNthPercentile(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);
}
static bool isColdBlockNthPercentile(int CutOff, const BasicBlock *BB,
ProfileSummaryInfo *PSI,
BlockFrequencyInfo *BFI) {
return PSI->isColdBlockNthPercentile(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) {
assert(BB);
return shouldOptimizeForSizeImpl<BasicBlockBFIAdapter>(BB, PSI, BFI,
QueryType);
}
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