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436769363c
Summary: The patch wraps ThinLTO index into immutable pass which can be used by StackSafety analysis. Reviewers: eugenis, pcc Reviewed By: eugenis Subscribers: hiraditya, steven_wu, dexonsmith, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D80985
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
//===- ModuleSummaryAnalysis.h - Module summary index builder ---*- 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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/// \file
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/// This is the interface to build a ModuleSummaryIndex for a module.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_MODULESUMMARYANALYSIS_H
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#define LLVM_ANALYSIS_MODULESUMMARYANALYSIS_H
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#include "llvm/ADT/Optional.h"
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#include "llvm/IR/ModuleSummaryIndex.h"
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#include "llvm/IR/PassManager.h"
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#include "llvm/Pass.h"
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#include <functional>
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namespace llvm {
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class BlockFrequencyInfo;
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class Function;
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class Module;
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class ProfileSummaryInfo;
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class StackSafetyInfo;
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/// Direct function to compute a \c ModuleSummaryIndex from a given module.
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///
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/// If operating within a pass manager which has defined ways to compute the \c
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/// BlockFrequencyInfo for a given function, that can be provided via
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/// a std::function callback. Otherwise, this routine will manually construct
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/// that information.
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ModuleSummaryIndex buildModuleSummaryIndex(
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const Module &M,
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std::function<BlockFrequencyInfo *(const Function &F)> GetBFICallback,
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ProfileSummaryInfo *PSI,
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std::function<const StackSafetyInfo *(const Function &F)> GetSSICallback =
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[](const Function &F) -> const StackSafetyInfo * { return nullptr; });
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/// Analysis pass to provide the ModuleSummaryIndex object.
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class ModuleSummaryIndexAnalysis
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: public AnalysisInfoMixin<ModuleSummaryIndexAnalysis> {
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friend AnalysisInfoMixin<ModuleSummaryIndexAnalysis>;
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static AnalysisKey Key;
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public:
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using Result = ModuleSummaryIndex;
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Result run(Module &M, ModuleAnalysisManager &AM);
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};
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/// Legacy wrapper pass to provide the ModuleSummaryIndex object.
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class ModuleSummaryIndexWrapperPass : public ModulePass {
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Optional<ModuleSummaryIndex> Index;
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public:
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static char ID;
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ModuleSummaryIndexWrapperPass();
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/// Get the index built by pass
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ModuleSummaryIndex &getIndex() { return *Index; }
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const ModuleSummaryIndex &getIndex() const { return *Index; }
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bool runOnModule(Module &M) override;
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bool doFinalization(Module &M) override;
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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};
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//===--------------------------------------------------------------------===//
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//
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// createModuleSummaryIndexWrapperPass - This pass builds a ModuleSummaryIndex
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// object for the module, to be written to bitcode or LLVM assembly.
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//
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ModulePass *createModuleSummaryIndexWrapperPass();
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/// Legacy wrapper pass to provide the ModuleSummaryIndex object.
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class ImmutableModuleSummaryIndexWrapperPass : public ImmutablePass {
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const ModuleSummaryIndex *Index;
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public:
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static char ID;
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ImmutableModuleSummaryIndexWrapperPass(
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const ModuleSummaryIndex *Index = nullptr);
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const ModuleSummaryIndex *getIndex() const { return Index; }
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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};
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//===--------------------------------------------------------------------===//
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//
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// ImmutableModuleSummaryIndexWrapperPass - This pass wrap provided
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// ModuleSummaryIndex object for the module, to be used by other passes.
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//
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ImmutablePass *
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createImmutableModuleSummaryIndexWrapperPass(const ModuleSummaryIndex *Index);
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} // end namespace llvm
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#endif // LLVM_ANALYSIS_MODULESUMMARYANALYSIS_H
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