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11e71061b1
Besides a general consistently benefit, the extra layer of indirection allows the mechanical part of https://reviews.llvm.org/D23256 that requires touching every transformation and analysis to be factored out cleanly. Thanks to David for the suggestion. llvm-svn: 278077
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
//===- AliasAnalysisEvaluator.h - Alias Analysis Accuracy Evaluator -------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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/// \file
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///
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/// This file implements a simple N^2 alias analysis accuracy evaluator. The
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/// analysis result is a set of statistics of how many times the AA
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/// infrastructure provides each kind of alias result and mod/ref result when
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/// queried with all pairs of pointers in the function.
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///
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/// It can be used to evaluate a change in an alias analysis implementation,
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/// algorithm, or the AA pipeline infrastructure itself. It acts like a stable
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/// and easily tested consumer of all AA information exposed.
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///
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/// This is inspired and adapted from code by: Naveen Neelakantam, Francesco
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/// Spadini, and Wojciech Stryjewski.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_ALIASANALYSISEVALUATOR_H
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#define LLVM_ANALYSIS_ALIASANALYSISEVALUATOR_H
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#include "llvm/IR/Function.h"
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#include "llvm/IR/PassManager.h"
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namespace llvm {
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class AAResults;
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class AAEvaluator : public PassInfoMixin<AAEvaluator> {
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int64_t FunctionCount;
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int64_t NoAliasCount, MayAliasCount, PartialAliasCount, MustAliasCount;
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int64_t NoModRefCount, ModCount, RefCount, ModRefCount;
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public:
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AAEvaluator()
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: FunctionCount(), NoAliasCount(), MayAliasCount(), PartialAliasCount(),
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MustAliasCount(), NoModRefCount(), ModCount(), RefCount(),
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ModRefCount() {}
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AAEvaluator(AAEvaluator &&Arg)
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: FunctionCount(Arg.FunctionCount), NoAliasCount(Arg.NoAliasCount),
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MayAliasCount(Arg.MayAliasCount),
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PartialAliasCount(Arg.PartialAliasCount),
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MustAliasCount(Arg.MustAliasCount), NoModRefCount(Arg.NoModRefCount),
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ModCount(Arg.ModCount), RefCount(Arg.RefCount),
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ModRefCount(Arg.ModRefCount) {
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Arg.FunctionCount = 0;
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}
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~AAEvaluator();
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/// \brief Run the pass over the function.
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PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
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private:
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// Allow the legacy pass to run this using an internal API.
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friend class AAEvalLegacyPass;
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void runInternal(Function &F, AAResults &AA);
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};
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/// Create a wrapper of the above for the legacy pass manager.
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FunctionPass *createAAEvalPass();
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}
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#endif
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