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80155cbf0b
Currently, to use PSI->isFunctionHotInCallGraph, we first need to calculate BPI->BFI, which is expensive. Instead, we can implement this directly with MBFI. Also as @wenlei mentioned in another patch review, that MachineSizeOpts already has isFunctionColdInCallGraph, isFunctionHotInCallGraphNthPercentile, etc implemented. These can be refactored and so they can be reused across MachineFunctionSplitting and MachineSizeOpts passes. This CL does this - it refactors out those internal static functions into PSI as templated functions, so they can be accessed easily. Differential Revision: https://reviews.llvm.org/D153927
53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
//===- MachineSizeOpts.cpp - code size optimization related code ----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains some shared machine IR code size optimization related
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// code.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineSizeOpts.h"
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#include "llvm/CodeGen/MBFIWrapper.h"
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#include "llvm/Analysis/ProfileSummaryInfo.h"
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#include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
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using namespace llvm;
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extern cl::opt<bool> EnablePGSO;
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extern cl::opt<bool> PGSOLargeWorkingSetSizeOnly;
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extern cl::opt<bool> ForcePGSO;
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extern cl::opt<int> PgsoCutoffInstrProf;
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extern cl::opt<int> PgsoCutoffSampleProf;
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bool llvm::shouldOptimizeForSize(const MachineFunction *MF,
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ProfileSummaryInfo *PSI,
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const MachineBlockFrequencyInfo *MBFI,
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PGSOQueryType QueryType) {
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return shouldFuncOptimizeForSizeImpl(MF, PSI, MBFI, QueryType);
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}
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bool llvm::shouldOptimizeForSize(const MachineBasicBlock *MBB,
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ProfileSummaryInfo *PSI,
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const MachineBlockFrequencyInfo *MBFI,
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PGSOQueryType QueryType) {
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assert(MBB);
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return shouldOptimizeForSizeImpl(MBB, PSI, MBFI, QueryType);
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}
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bool llvm::shouldOptimizeForSize(const MachineBasicBlock *MBB,
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ProfileSummaryInfo *PSI,
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MBFIWrapper *MBFIW,
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PGSOQueryType QueryType) {
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assert(MBB);
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if (!PSI || !MBFIW)
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return false;
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BlockFrequency BlockFreq = MBFIW->getBlockFreq(MBB);
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return shouldOptimizeForSizeImpl(BlockFreq, PSI, &MBFIW->getMBFI(),
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QueryType);
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}
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