102 lines
3 KiB
C
102 lines
3 KiB
C
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//===-------------------- NVPTXAliasAnalysis.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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/// \file
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/// This is the NVPTX address space based alias analysis pass.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_NVPTX_NVPTXALIASANALYSIS_H
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#define LLVM_LIB_TARGET_NVPTX_NVPTXALIASANALYSIS_H
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#include "llvm/Analysis/AliasAnalysis.h"
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namespace llvm {
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class MemoryLocation;
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class NVPTXAAResult : public AAResultBase {
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public:
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NVPTXAAResult() {}
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NVPTXAAResult(NVPTXAAResult &&Arg) : AAResultBase(std::move(Arg)) {}
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/// Handle invalidation events from the new pass manager.
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///
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/// By definition, this result is stateless and so remains valid.
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bool invalidate(Function &, const PreservedAnalyses &,
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FunctionAnalysisManager::Invalidator &Inv) {
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return false;
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}
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AliasResult alias(const MemoryLocation &LocA, const MemoryLocation &LocB,
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AAQueryInfo &AAQI, const Instruction *CtxI = nullptr);
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ModRefInfo getModRefInfoMask(const MemoryLocation &Loc, AAQueryInfo &AAQI,
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bool IgnoreLocals);
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};
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/// Analysis pass providing a never-invalidated alias analysis result.
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class NVPTXAA : public AnalysisInfoMixin<NVPTXAA> {
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friend AnalysisInfoMixin<NVPTXAA>;
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static AnalysisKey Key;
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public:
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using Result = NVPTXAAResult;
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NVPTXAAResult run(Function &F, AnalysisManager<Function> &AM) {
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return NVPTXAAResult();
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}
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};
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/// Legacy wrapper pass to provide the NVPTXAAResult object.
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class NVPTXAAWrapperPass : public ImmutablePass {
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std::unique_ptr<NVPTXAAResult> Result;
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public:
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static char ID;
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NVPTXAAWrapperPass();
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NVPTXAAResult &getResult() { return *Result; }
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const NVPTXAAResult &getResult() const { return *Result; }
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bool doInitialization(Module &M) override {
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Result.reset(new NVPTXAAResult());
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return false;
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}
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bool doFinalization(Module &M) override {
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Result.reset();
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override;
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};
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// Wrapper around ExternalAAWrapperPass so that the default
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// constructor gets the callback.
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class NVPTXExternalAAWrapper : public ExternalAAWrapperPass {
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public:
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static char ID;
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NVPTXExternalAAWrapper()
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: ExternalAAWrapperPass([](Pass &P, Function &, AAResults &AAR) {
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if (auto *WrapperPass =
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P.getAnalysisIfAvailable<NVPTXAAWrapperPass>())
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AAR.addAAResult(WrapperPass->getResult());
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}) {}
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};
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ImmutablePass *createNVPTXAAWrapperPass();
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void initializeNVPTXAAWrapperPassPass(PassRegistry &);
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ImmutablePass *createNVPTXExternalAAWrapperPass();
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void initializeNVPTXExternalAAWrapperPass(PassRegistry &);
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_NVPTX_NVPTXALIASANALYSIS_H
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