101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
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//===- Transforms/Instrumentation/PGOInstrumentation.h ----------*- 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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/// \file
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/// This file provides the interface for IR based instrumentation passes (
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/// (profile-gen, and profile-use).
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_PGOINSTRUMENTATION_H
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#define LLVM_TRANSFORMS_PGOINSTRUMENTATION_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/IR/PassManager.h"
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#include <cstdint>
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#include <string>
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namespace llvm {
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class Function;
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class Instruction;
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class Module;
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/// The instrumentation (profile-instr-gen) pass for IR based PGO.
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// We use this pass to create COMDAT profile variables for context
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// sensitive PGO (CSPGO). The reason to have a pass for this is CSPGO
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// can be run after LTO/ThinLTO linking. Lld linker needs to see
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// all the COMDAT variables before linking. So we have this pass
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// always run before linking for CSPGO.
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class PGOInstrumentationGenCreateVar
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: public PassInfoMixin<PGOInstrumentationGenCreateVar> {
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public:
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PGOInstrumentationGenCreateVar(std::string CSInstrName = "")
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: CSInstrName(CSInstrName) {}
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
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private:
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std::string CSInstrName;
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};
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/// The instrumentation (profile-instr-gen) pass for IR based PGO.
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class PGOInstrumentationGen : public PassInfoMixin<PGOInstrumentationGen> {
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public:
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PGOInstrumentationGen(bool IsCS = false) : IsCS(IsCS) {}
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
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private:
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// If this is a context sensitive instrumentation.
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bool IsCS;
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};
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/// The profile annotation (profile-instr-use) pass for IR based PGO.
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class PGOInstrumentationUse : public PassInfoMixin<PGOInstrumentationUse> {
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public:
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PGOInstrumentationUse(std::string Filename = "",
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std::string RemappingFilename = "", bool IsCS = false);
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
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private:
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std::string ProfileFileName;
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std::string ProfileRemappingFileName;
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// If this is a context sensitive instrumentation.
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bool IsCS;
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};
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/// The indirect function call promotion pass.
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class PGOIndirectCallPromotion : public PassInfoMixin<PGOIndirectCallPromotion> {
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public:
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PGOIndirectCallPromotion(bool IsInLTO = false, bool SamplePGO = false)
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: InLTO(IsInLTO), SamplePGO(SamplePGO) {}
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PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
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private:
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bool InLTO;
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bool SamplePGO;
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};
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/// The profile size based optimization pass for memory intrinsics.
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class PGOMemOPSizeOpt : public PassInfoMixin<PGOMemOPSizeOpt> {
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public:
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PGOMemOPSizeOpt() = default;
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
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};
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void setProfMetadata(Module *M, Instruction *TI, ArrayRef<uint64_t> EdgeCounts,
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uint64_t MaxCount);
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void setIrrLoopHeaderMetadata(Module *M, Instruction *TI, uint64_t Count);
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} // end namespace llvm
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#endif // LLVM_TRANSFORMS_PGOINSTRUMENTATION_H
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