llvm/lib/CodeGen/MachineSizeOpts.cpp

   1 //===- MachineSizeOpts.cpp - code size optimization related code ----------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file contains some shared machine IR code size optimization related
  10 // code.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/CodeGen/MachineSizeOpts.h"
  15 #include "llvm/CodeGen/MBFIWrapper.h"
  16 #include "llvm/Analysis/ProfileSummaryInfo.h"
  17 #include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
  18
  19 using namespace llvm;
  20
  21 extern cl::opt<bool> EnablePGSO;
  22 extern cl::opt<bool> PGSOLargeWorkingSetSizeOnly;
  23 extern cl::opt<bool> ForcePGSO;
  24 extern cl::opt<int> PgsoCutoffInstrProf;
  25 extern cl::opt<int> PgsoCutoffSampleProf;
  26
  27 bool llvm::shouldOptimizeForSize(const MachineFunction *MF,
  28                                  ProfileSummaryInfo *PSI,
  29                                  const MachineBlockFrequencyInfo *MBFI,
  30                                  PGSOQueryType QueryType) {
  31   return shouldFuncOptimizeForSizeImpl(MF, PSI, MBFI, QueryType);
  32 }
  33
  34 bool llvm::shouldOptimizeForSize(const MachineBasicBlock *MBB,
  35                                  ProfileSummaryInfo *PSI,
  36                                  const MachineBlockFrequencyInfo *MBFI,
  37                                  PGSOQueryType QueryType) {
  38   assert(MBB);
  39   return shouldOptimizeForSizeImpl(MBB, PSI, MBFI, QueryType);
  40 }
  41
  42 bool llvm::shouldOptimizeForSize(const MachineBasicBlock *MBB,
  43                                  ProfileSummaryInfo *PSI,
  44                                  MBFIWrapper *MBFIW,
  45                                  PGSOQueryType QueryType) {
  46   assert(MBB);
  47   if (!PSI || !MBFIW)
  48     return false;
  49   BlockFrequency BlockFreq = MBFIW->getBlockFreq(MBB);
  50   return shouldOptimizeForSizeImpl(BlockFreq, PSI, &MBFIW->getMBFI(),
  51                                    QueryType);
  52 }