BFRegCopyBefore.hh

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/*
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/**
 * @file BFRegCopyBefore.hh
 *
 * Declaration of BFRegCopyBefore class
 *
 * Creates a register-to-register copy before a move, modifying the source
 * of the original move into the temporaty register and making the source
 * of the temp move the original souce register.
 *
 * Used for temp-reg-copies of operand moves.
 *
 * @author Heikki Kultala 2014-2020(heikki.kultala-no.spam-tuni.fi)
 * @note rating: red
 */
 
#ifndef BF_RECGOPY_BEFORE_HH
#define BF_RECGOPY_BEFORE_HH
 
#include "BFRegCopy.hh"
class BFRegCopyBefore: public BFRegCopy {
public:
    BFRegCopyBefore(BF2Scheduler& sched, MoveNode& mn, int lc,
                    const TTAMachine::RegisterFile* forbiddenRF = nullptr)
        : BFRegCopy(sched,mn,lc), forbiddenRF_(forbiddenRF) {}
    virtual ~BFRegCopyBefore() {}
protected:
    bool splitMove(BasicBlockNode& bbn);
    void undoSplit();
    const TTAMachine::RegisterFile* forbiddenRF_;
};
 
#endif