/usr/include/llvm-3.9/llvm/Analysis/ScopedNoAliasAA.h is in llvm-3.9-dev 1:3.9.1-19ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | //===- ScopedNoAliasAA.h - Scoped No-Alias Alias Analysis -------*- 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 interface for a metadata-based scoped no-alias analysis.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_SCOPEDNOALIASAA_H
#define LLVM_ANALYSIS_SCOPEDNOALIASAA_H
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
namespace llvm {
/// A simple AA result which uses scoped-noalias metadata to answer queries.
class ScopedNoAliasAAResult : public AAResultBase<ScopedNoAliasAAResult> {
friend AAResultBase<ScopedNoAliasAAResult>;
public:
explicit ScopedNoAliasAAResult() : AAResultBase() {}
ScopedNoAliasAAResult(ScopedNoAliasAAResult &&Arg)
: AAResultBase(std::move(Arg)) {}
/// 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);
ModRefInfo getModRefInfo(ImmutableCallSite CS, const MemoryLocation &Loc);
ModRefInfo getModRefInfo(ImmutableCallSite CS1, ImmutableCallSite CS2);
private:
bool mayAliasInScopes(const MDNode *Scopes, const MDNode *NoAlias) const;
void collectMDInDomain(const MDNode *List, const MDNode *Domain,
SmallPtrSetImpl<const MDNode *> &Nodes) const;
};
/// Analysis pass providing a never-invalidated alias analysis result.
class ScopedNoAliasAA : public AnalysisInfoMixin<ScopedNoAliasAA> {
friend AnalysisInfoMixin<ScopedNoAliasAA>;
static char PassID;
public:
typedef ScopedNoAliasAAResult Result;
ScopedNoAliasAAResult run(Function &F, AnalysisManager<Function> &AM);
};
/// Legacy wrapper pass to provide the ScopedNoAliasAAResult object.
class ScopedNoAliasAAWrapperPass : public ImmutablePass {
std::unique_ptr<ScopedNoAliasAAResult> Result;
public:
static char ID;
ScopedNoAliasAAWrapperPass();
ScopedNoAliasAAResult &getResult() { return *Result; }
const ScopedNoAliasAAResult &getResult() const { return *Result; }
bool doInitialization(Module &M) override;
bool doFinalization(Module &M) override;
void getAnalysisUsage(AnalysisUsage &AU) const override;
};
//===--------------------------------------------------------------------===//
//
// createScopedNoAliasAAWrapperPass - This pass implements metadata-based
// scoped noalias analysis.
//
ImmutablePass *createScopedNoAliasAAWrapperPass();
}
#endif
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