LLVM  13.0.0git
MBFIWrapper.h
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1 //===- llvm/CodeGen/MBFIWrapper.h -------------------------------*- C++ -*-===//
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 class keeps track of branch frequencies of newly created blocks and
10 // tail-merged blocks. Used by the TailDuplication and MachineBlockPlacement.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_CODEGEN_MBFIWRAPPER_H
15 #define LLVM_CODEGEN_MBFIWRAPPER_H
16 
17 #include "llvm/ADT/DenseMap.h"
19 
20 namespace llvm {
21 
22 class MachineBasicBlock;
23 class MachineBlockFrequencyInfo;
24 
25 class MBFIWrapper {
26  public:
28 
32 
34  const MachineBasicBlock *MBB) const;
36  const BlockFrequency Freq) const;
37  void view(const Twine &Name, bool isSimple = true);
38  uint64_t getEntryFreq() const;
39  const MachineBlockFrequencyInfo &getMBFI() { return MBFI; }
40 
41  private:
42  const MachineBlockFrequencyInfo &MBFI;
44 };
45 
46 } // end namespace llvm
47 
48 #endif // LLVM_CODEGEN_MBFIWRAPPER_H
llvm
Definition: AllocatorList.h:23
llvm::MBFIWrapper::view
void view(const Twine &Name, bool isSimple=true)
Definition: MBFIWrapper.cpp:55
BlockFrequency.h
DenseMap.h
llvm::Optional< uint64_t >
llvm::MBFIWrapper::setBlockFreq
void setBlockFreq(const MachineBasicBlock *MBB, BlockFrequency F)
Definition: MBFIWrapper.cpp:28
F
#define F(x, y, z)
Definition: MD5.cpp:56
llvm::MBFIWrapper::printBlockFreq
raw_ostream & printBlockFreq(raw_ostream &OS, const MachineBasicBlock *MBB) const
Definition: MBFIWrapper.cpp:45
llvm::MachineBlockFrequencyInfo
MachineBlockFrequencyInfo pass uses BlockFrequencyInfoImpl implementation to estimate machine basic b...
Definition: MachineBlockFrequencyInfo.h:33
llvm::raw_ostream
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:50
llvm::MBFIWrapper::getEntryFreq
uint64_t getEntryFreq() const
Definition: MBFIWrapper.cpp:59
llvm::MBFIWrapper
Definition: MBFIWrapper.h:25
llvm::MachineBasicBlock
Definition: MachineBasicBlock.h:95
llvm::BlockFrequency
Definition: BlockFrequency.h:24
llvm::DenseMap
Definition: DenseMap.h:714
I
#define I(x, y, z)
Definition: MD5.cpp:59
llvm::MBFIWrapper::getMBFI
const MachineBlockFrequencyInfo & getMBFI()
Definition: MBFIWrapper.h:39
MBB
MachineBasicBlock & MBB
Definition: AArch64SLSHardening.cpp:74
llvm::Twine
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition: Twine.h:80
llvm::GraphProgram::Name
Name
Definition: GraphWriter.h:52
llvm::MBFIWrapper::getBlockProfileCount
Optional< uint64_t > getBlockProfileCount(const MachineBasicBlock *MBB) const
Definition: MBFIWrapper.cpp:34
isSimple
static bool isSimple(Instruction *I)
Definition: SLPVectorizer.cpp:524
llvm::MBFIWrapper::MBFIWrapper
MBFIWrapper(const MachineBlockFrequencyInfo &I)
Definition: MBFIWrapper.h:27
llvm::MBFIWrapper::getBlockFreq
BlockFrequency getBlockFreq(const MachineBasicBlock *MBB) const
Definition: MBFIWrapper.cpp:19