BFRegCopy.hh

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/*
    Copyright (c) 2002-2014 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file BFRegCopy.hh
 *
 * Declaration of BFRegCopy class
 *
 * Base class for creating a register-to-register copy.
 *
 * @author Heikki Kultala 2014-2020(heikki.kultala-no.spam-tuni.fi)
 * @note rating: red
 */
 
#ifndef BF_REGCOPY_HH
#define BF_REGCOPY_HH
 
#include "BFOptimization.hh"
 
class MoveNode;
class BasicBlockNode;
namespace TTAMachine {
    class RegisterFile;
}
 
class BFRegCopy: public BFOptimization {
public:
    BFRegCopy(BF2Scheduler& sched, MoveNode& mn, int lc) :
        BFOptimization(sched), mn_(mn), lc_(lc) {}
    bool operator()();
    MoveNode* getRegCopy() { return regCopy_; }
    void undoOnlyMe();
    void undoDDG();
    void createAntidepsForReg(
        MoveNode& firstMove,
        MoveNode& lastMove,
        const TTAMachine::RegisterFile& rf,
        int index,
        TCEString regName,
        BasicBlockNode& bbn,
        bool loopScheduling);
 
protected:
    virtual bool splitMove(BasicBlockNode& bbn) = 0;
    virtual void undoSplit() = 0;
 
    MoveNode* createRegCopy(bool after);
    MoveNode& mn_;
    MoveNode* regCopy_;
    int lc_;
};
 
#endif