| //===- CycleAnalysis.h - Cycle Info for LLVM IR -----------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| /// \file |
| /// |
| /// This file declares an analysis pass that computes CycleInfo for |
| /// LLVM IR, specialized from GenericCycleInfo. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_ANALYSIS_CYCLEANALYSIS_H |
| #define LLVM_ANALYSIS_CYCLEANALYSIS_H |
| |
| #include "llvm/ADT/GenericCycleInfo.h" |
| #include "llvm/IR/PassManager.h" |
| #include "llvm/IR/SSAContext.h" |
| |
| namespace llvm { |
| extern template class GenericCycleInfo<SSAContext>; |
| extern template class GenericCycle<SSAContext>; |
| |
| using CycleInfo = GenericCycleInfo<SSAContext>; |
| using Cycle = CycleInfo::CycleT; |
| |
| /// Analysis pass which computes a \ref CycleInfo. |
| class CycleAnalysis : public AnalysisInfoMixin<CycleAnalysis> { |
| friend AnalysisInfoMixin<CycleAnalysis>; |
| static AnalysisKey Key; |
| |
| public: |
| /// Provide the result typedef for this analysis pass. |
| using Result = CycleInfo; |
| |
| /// Run the analysis pass over a function and produce a dominator tree. |
| CycleInfo run(Function &F, FunctionAnalysisManager &); |
| |
| // TODO: verify analysis? |
| }; |
| |
| /// Printer pass for the \c DominatorTree. |
| class CycleInfoPrinterPass : public PassInfoMixin<CycleInfoPrinterPass> { |
| raw_ostream &OS; |
| |
| public: |
| explicit CycleInfoPrinterPass(raw_ostream &OS); |
| |
| PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM); |
| }; |
| |
| /// Legacy analysis pass which computes a \ref CycleInfo. |
| class CycleInfoWrapperPass : public FunctionPass { |
| Function *F = nullptr; |
| CycleInfo CI; |
| |
| public: |
| static char ID; |
| |
| CycleInfoWrapperPass(); |
| |
| CycleInfo &getCycleInfo() { return CI; } |
| const CycleInfo &getCycleInfo() const { return CI; } |
| |
| bool runOnFunction(Function &F) override; |
| void getAnalysisUsage(AnalysisUsage &AU) const override; |
| void releaseMemory() override; |
| void print(raw_ostream &OS, const Module *M = nullptr) const override; |
| |
| // TODO: verify analysis? |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_ANALYSIS_CYCLEANALYSIS_H |