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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- ConvergenceUtils.h -----------------------*- C++ -*-----------------===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | /// \file |
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| 10 | /// \brief Convergence info and convergence-aware uniform info for LLVM IR |
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| 11 | /// |
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| 12 | /// This differs from traditional divergence analysis by taking convergence |
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| 13 | /// intrinsics into account. |
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| 14 | // |
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| 15 | //===----------------------------------------------------------------------===// |
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| 16 | |||
| 17 | #ifndef LLVM_ANALYSIS_UNIFORMITYANALYSIS_H |
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| 18 | #define LLVM_ANALYSIS_UNIFORMITYANALYSIS_H |
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| 19 | |||
| 20 | #include "llvm/ADT/GenericUniformityInfo.h" |
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| 21 | #include "llvm/Analysis/CycleAnalysis.h" |
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| 22 | |||
| 23 | namespace llvm { |
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| 24 | |||
| 25 | extern template class GenericUniformityInfo<SSAContext>; |
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| 26 | using UniformityInfo = GenericUniformityInfo<SSAContext>; |
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| 27 | |||
| 28 | /// Analysis pass which computes \ref UniformityInfo. |
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| 29 | class UniformityInfoAnalysis |
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| 30 | : public AnalysisInfoMixin<UniformityInfoAnalysis> { |
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| 31 | friend AnalysisInfoMixin<UniformityInfoAnalysis>; |
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| 32 | static AnalysisKey Key; |
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| 33 | |||
| 34 | public: |
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| 35 | /// Provide the result typedef for this analysis pass. |
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| 36 | using Result = UniformityInfo; |
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| 37 | |||
| 38 | /// Run the analysis pass over a function and produce a dominator tree. |
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| 39 | UniformityInfo run(Function &F, FunctionAnalysisManager &); |
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| 40 | |||
| 41 | // TODO: verify analysis |
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| 42 | }; |
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| 43 | |||
| 44 | /// Printer pass for the \c UniformityInfo. |
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| 45 | class UniformityInfoPrinterPass |
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| 46 | : public PassInfoMixin<UniformityInfoPrinterPass> { |
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| 47 | raw_ostream &OS; |
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| 48 | |||
| 49 | public: |
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| 50 | explicit UniformityInfoPrinterPass(raw_ostream &OS); |
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| 51 | |||
| 52 | PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM); |
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| 53 | }; |
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| 54 | |||
| 55 | /// Legacy analysis pass which computes a \ref CycleInfo. |
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| 56 | class UniformityInfoWrapperPass : public FunctionPass { |
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| 57 | Function *m_function = nullptr; |
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| 58 | UniformityInfo m_uniformityInfo; |
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| 59 | |||
| 60 | public: |
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| 61 | static char ID; |
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| 62 | |||
| 63 | UniformityInfoWrapperPass(); |
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| 64 | |||
| 65 | UniformityInfo &getUniformityInfo() { return m_uniformityInfo; } |
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| 66 | const UniformityInfo &getUniformityInfo() const { return m_uniformityInfo; } |
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| 67 | |||
| 68 | bool runOnFunction(Function &F) override; |
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| 69 | void getAnalysisUsage(AnalysisUsage &AU) const override; |
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| 70 | void releaseMemory() override; |
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| 71 | void print(raw_ostream &OS, const Module *M = nullptr) const override; |
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| 72 | |||
| 73 | // TODO: verify analysis |
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| 74 | }; |
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| 75 | |||
| 76 | } // namespace llvm |
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| 77 | |||
| 78 | #endif // LLVM_ANALYSIS_UNIFORMITYANALYSIS_H |