6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
//===----- MIRSampleProfile.h: SampleFDO Support in MIR ---*- c++ -*-------===//
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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 the supoorting functions for machine level Sample FDO
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// loader. This is used in Flow Sensitive SampelFDO.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MIRSAMPLEPROFILE_H
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#define LLVM_CODEGEN_MIRSAMPLEPROFILE_H
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#include "llvm/ADT/IntrusiveRefCntPtr.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/Support/Discriminator.h"
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#include <memory>
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#include <string>
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namespace llvm {
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class AnalysisUsage;
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class MachineBlockFrequencyInfo;
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class MachineFunction;
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class Module;
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namespace vfs {
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class FileSystem;
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} // namespace vfs
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using namespace sampleprof;
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class MIRProfileLoader;
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class MIRProfileLoaderPass : public MachineFunctionPass {
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MachineFunction *MF;
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std::string ProfileFileName;
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FSDiscriminatorPass P;
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unsigned LowBit;
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unsigned HighBit;
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public:
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static char ID;
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/// FS bits will only use the '1' bits in the Mask.
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MIRProfileLoaderPass(std::string FileName = "",
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std::string RemappingFileName = "",
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FSDiscriminatorPass P = FSDiscriminatorPass::Pass1,
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IntrusiveRefCntPtr<vfs::FileSystem> FS = nullptr);
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/// getMachineFunction - Return the last machine function computed.
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const MachineFunction *getMachineFunction() const { return MF; }
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StringRef getPassName() const override { return "SampleFDO loader in MIR"; }
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private:
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void init(MachineFunction &MF);
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bool runOnMachineFunction(MachineFunction &) override;
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bool doInitialization(Module &M) override;
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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std::unique_ptr<MIRProfileLoader> MIRSampleLoader;
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/// Hold the information of the basic block frequency.
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MachineBlockFrequencyInfo *MBFI;
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};
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} // namespace llvm
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#endif // LLVM_CODEGEN_MIRSAMPLEPROFILE_H
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