Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/Target/AMDGPU/AMDGPUAliasAnalysis.h

@@ -1,115 +0,0 @@
-//===- AMDGPUAliasAnalysis --------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-/// \file
-/// This is the AMGPU address space based alias analysis pass.
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUALIASANALYSIS_H
-#define LLVM_LIB_TARGET_AMDGPU_AMDGPUALIASANALYSIS_H
-
-#include "AMDGPU.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/Analysis/AliasAnalysis.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Pass.h"
-#include <algorithm>
-#include <memory>
-
-namespace llvm {
-
-class DataLayout;
-class MDNode;
-class MemoryLocation;
-
-/// A simple AA result that uses TBAA metadata to answer queries.
-class AMDGPUAAResult : public AAResultBase<AMDGPUAAResult> {
-  friend AAResultBase<AMDGPUAAResult>;
-
-  const DataLayout &DL;
-  AMDGPUAS AS;
-
-public:
-  explicit AMDGPUAAResult(const DataLayout &DL, Triple T) : AAResultBase(),
-    DL(DL), AS(AMDGPU::getAMDGPUAS(T)), ASAliasRules(AS, T.getArch()) {}
-  AMDGPUAAResult(AMDGPUAAResult &&Arg)
-      : AAResultBase(std::move(Arg)), DL(Arg.DL), AS(Arg.AS),
-        ASAliasRules(Arg.ASAliasRules){}
-
-  /// Handle invalidation events from the new pass manager.
-  ///
-  /// By definition, this result is stateless and so remains valid.
-  bool invalidate(Function &, const PreservedAnalyses &) { return false; }
-
-  AliasResult alias(const MemoryLocation &LocA, const MemoryLocation &LocB);
-  bool pointsToConstantMemory(const MemoryLocation &Loc, bool OrLocal);
-
-private:
-  bool Aliases(const MDNode *A, const MDNode *B) const;
-  bool PathAliases(const MDNode *A, const MDNode *B) const;
-
-  class ASAliasRulesTy {
-  public:
-    ASAliasRulesTy(AMDGPUAS AS_, Triple::ArchType Arch_);
-
-    AliasResult getAliasResult(unsigned AS1, unsigned AS2) const;
-
-  private:
-    Triple::ArchType Arch;
-    AMDGPUAS AS;
-    const AliasResult (*ASAliasRules)[6][6];
-  } ASAliasRules;
-};
-
-/// Analysis pass providing a never-invalidated alias analysis result.
-class AMDGPUAA : public AnalysisInfoMixin<AMDGPUAA> {
-  friend AnalysisInfoMixin<AMDGPUAA>;
-
-  static char PassID;
-
-public:
-  using Result = AMDGPUAAResult;
-
-  AMDGPUAAResult run(Function &F, AnalysisManager<Function> &AM) {
-    return AMDGPUAAResult(F.getParent()->getDataLayout(),
-        Triple(F.getParent()->getTargetTriple()));
-  }
-};
-
-/// Legacy wrapper pass to provide the AMDGPUAAResult object.
-class AMDGPUAAWrapperPass : public ImmutablePass {
-  std::unique_ptr<AMDGPUAAResult> Result;
-
-public:
-  static char ID;
-
-  AMDGPUAAWrapperPass() : ImmutablePass(ID) {
-    initializeAMDGPUAAWrapperPassPass(*PassRegistry::getPassRegistry());
-  }
-
-  AMDGPUAAResult &getResult() { return *Result; }
-  const AMDGPUAAResult &getResult() const { return *Result; }
-
-  bool doInitialization(Module &M) override {
-    Result.reset(new AMDGPUAAResult(M.getDataLayout(),
-        Triple(M.getTargetTriple())));
-    return false;
-  }
-
-  bool doFinalization(Module &M) override {
-    Result.reset();
-    return false;
-  }
-
-  void getAnalysisUsage(AnalysisUsage &AU) const override;
-};
-
-} // end namespace llvm
-
-#endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUALIASANALYSIS_H