BFSwapOperands.hh

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/**
 * @file BFSwapOperands.hh
 *
 * Declaration of BFSwapOperands class
 *
 * Swaps the operands of a commutative operation.
 *
 * @author Heikki Kultala 2014-2020(heikki.kultala-no.spam-tuni.fi)
 * @note rating: red
 */
 
#include "BFOptimization.hh"
#include "ProgramOperation.hh"
#include "MoveNode.hh"
class BF2Scheduler;
 
class BFSwapOperands : public BFOptimization {
public:
    BFSwapOperands(BF2Scheduler& sched, MoveNode& mn);
    BFSwapOperands(BF2Scheduler& sched, ProgramOperationPtr po,
                     MoveNode& mn1, MoveNode& mn2);
    virtual bool operator()();
 
    virtual ~BFSwapOperands() {}
    std::pair<MoveNode*,MoveNode*> switchedMNs() { return switched_; }
protected:
    virtual void undoOnlyMe();
    std::pair<MoveNode*, MoveNode*> switched_;
    ProgramOperationPtr poPtr_;
    int idx1_;
    int idx2_;
};