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This is a simple AliasAnalysis implementation which works by making ScalarEvolution queries. ScalarEvolution has a more complete understanding of arithmetic than BasicAA's collection of ad-hoc checks, so it handles some cases that BasicAA misses, for example p[i] and p[i+1] within the same iteration of a loop. This is currently experimental. It may be that the main use for this pass will be to help find cases where BasicAA can be profitably extended, or to help in the development of the overall AliasAnalysis infrastructure, however it's also possible that it could grow up to become a directly useful pass. llvm-svn: 80098
153 lines
5.0 KiB
C++
153 lines
5.0 KiB
C++
//===-- llvm/Analysis/Passes.h - Constructors for analyses ------*- C++ -*-===//
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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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//
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// This header file defines prototypes for accessor functions that expose passes
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// in the analysis libraries.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_PASSES_H
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#define LLVM_ANALYSIS_PASSES_H
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namespace llvm {
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class FunctionPass;
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class ImmutablePass;
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class LoopPass;
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class ModulePass;
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class Pass;
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class PassInfo;
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class LibCallInfo;
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//===--------------------------------------------------------------------===//
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//
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// createGlobalsModRefPass - This pass provides alias and mod/ref info for
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// global values that do not have their addresses taken.
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//
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Pass *createGlobalsModRefPass();
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//===--------------------------------------------------------------------===//
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//
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// createAliasDebugger - This pass helps debug clients of AA
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//
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Pass *createAliasDebugger();
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//===--------------------------------------------------------------------===//
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//
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// createAliasAnalysisCounterPass - This pass counts alias queries and how the
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// alias analysis implementation responds.
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//
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ModulePass *createAliasAnalysisCounterPass();
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//===--------------------------------------------------------------------===//
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//
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// createAAEvalPass - This pass implements a simple N^2 alias analysis
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// accuracy evaluator.
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//
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FunctionPass *createAAEvalPass();
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//===--------------------------------------------------------------------===//
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//
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// createNoAAPass - This pass implements a "I don't know" alias analysis.
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//
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ImmutablePass *createNoAAPass();
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//===--------------------------------------------------------------------===//
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//
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// createBasicAliasAnalysisPass - This pass implements the default alias
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// analysis.
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//
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ImmutablePass *createBasicAliasAnalysisPass();
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//===--------------------------------------------------------------------===//
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//
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/// createLibCallAliasAnalysisPass - Create an alias analysis pass that knows
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/// about the semantics of a set of libcalls specified by LCI. The newly
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/// constructed pass takes ownership of the pointer that is provided.
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///
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FunctionPass *createLibCallAliasAnalysisPass(LibCallInfo *LCI);
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//===--------------------------------------------------------------------===//
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//
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// createScalarEvolutionAliasAnalysisPass - This pass implements a simple
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// alias analysis using ScalarEvolution queries.
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//
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FunctionPass *createScalarEvolutionAliasAnalysisPass();
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//===--------------------------------------------------------------------===//
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//
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// createAndersensPass - This pass implements Andersen's interprocedural alias
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// analysis.
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//
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ModulePass *createAndersensPass();
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//===--------------------------------------------------------------------===//
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//
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// createProfileLoaderPass - This pass loads information from a profile dump
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// file.
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//
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ModulePass *createProfileLoaderPass();
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//===--------------------------------------------------------------------===//
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//
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// createNoProfileInfoPass - This pass implements the default "no profile".
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//
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ImmutablePass *createNoProfileInfoPass();
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//===--------------------------------------------------------------------===//
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//
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// createProfileEstimatorPass - This pass estimates profiling information
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// instead of loading it from a previous run.
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//
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FunctionPass *createProfileEstimatorPass();
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extern const PassInfo *ProfileEstimatorPassID;
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//===--------------------------------------------------------------------===//
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//
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// createDSAAPass - This pass implements simple context sensitive alias
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// analysis.
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//
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ModulePass *createDSAAPass();
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//===--------------------------------------------------------------------===//
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//
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// createDSOptPass - This pass uses DSA to do a series of simple
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// optimizations.
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//
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ModulePass *createDSOptPass();
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//===--------------------------------------------------------------------===//
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//
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// createSteensgaardPass - This pass uses the data structure graphs to do a
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// simple context insensitive alias analysis.
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//
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ModulePass *createSteensgaardPass();
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//===--------------------------------------------------------------------===//
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//
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// createLiveValuesPass - This creates an instance of the LiveValues pass.
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//
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FunctionPass *createLiveValuesPass();
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//===--------------------------------------------------------------------===//
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//
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// createLoopDependenceAnalysisPass - This creates an instance of the
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// LoopDependenceAnalysis pass.
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//
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LoopPass *createLoopDependenceAnalysisPass();
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// Minor pass prototypes, allowing us to expose them through bugpoint and
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// analyze.
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FunctionPass *createInstCountPass();
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// print debug info intrinsics in human readable form
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FunctionPass *createDbgInfoPrinterPass();
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}
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#endif
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