LLVMAliasAnalyzer.hh

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/*
    Copyright (c) 2002-2011 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file LLVMAliasAnalyzer.hh
 *
 * Declaration of LLVMAliasAnalyzer class.
 * 
 * This class uses LLVM AliasAnalysis and MachineInstruction references
 * in ProgramOperation to query for aliases.
 *
 * @author Vladimír Guzma 2011 (vladimir.guzma-no.spam-tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_LLVM_ALIAS_ANALYZER
#define TTA_LLVM_ALIAS_ANALYZER
 
#include "MemoryAliasAnalyzer.hh"
 
#include "tce_config.h"
 
#include "CompilerWarnings.hh"
IGNORE_COMPILER_WARNING("-Wunused-parameter")
 
#include "llvm/Analysis/AliasAnalysis.h"
 
POP_COMPILER_DIAGS
 
typedef llvm::MemoryLocation Location;
typedef llvm::AliasResult AliasResult;
 
class LLVMAliasAnalyzer : public MemoryAliasAnalyzer {
public:
    LLVMAliasAnalyzer();
    virtual bool isAddressTraceable(
        DataDependenceGraph& ddg, const ProgramOperation& pop);
    virtual AliasingResult analyze(
        DataDependenceGraph& ddg, const ProgramOperation& pop1, 
        const ProgramOperation& pop2, MoveNodeUse::BBRelation bbInfo);
    virtual void setLLVMAA(llvm::AliasAnalysis* AA);
    ~LLVMAliasAnalyzer();
 
private:
    // Alias analyzer of LLVM will be set from DDGBuilder, since it is known
    // only when DDGBuilder's method build(...) is called.
    llvm::AliasAnalysis* AA_;
};
 
#endif