Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/Analysis/AliasAnalysisEvaluator.h
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//===- AliasAnalysisEvaluator.h - Alias Analysis Accuracy Evaluator -------===//
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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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///
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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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  int64_t MustCount, MustRefCount, MustModCount, MustModRefCount;
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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(), MustCount(), MustRefCount(), MustModCount(),
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        MustModRefCount() {}
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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), MustCount(Arg.MustCount),
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        MustRefCount(Arg.MustRefCount), MustModCount(Arg.MustModCount),
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        MustModRefCount(Arg.MustModRefCount) {
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    Arg.FunctionCount = 0;
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  }
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  ~AAEvaluator();
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  /// 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