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 }
53