BFMergeAndKeepUser.hh

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/**
 * @file BFMergeAndKeepUser.hh
 *
 * Declaration of scheduler operation which performs a bypass, including the
 * ddg updates.
 *
 * @author Heikki Kultala 2020 (hkultala-no.spam-tuni.fi)
 * @note rating: red
 */
 
 
#include "BFOptimization.hh"
#include "TCEString.hh"
 
class MoveNode;
class BF2Scheduler;
 
class BFMergeAndKeepUser : public BFOptimization {
public:
    BFMergeAndKeepUser(BF2Scheduler& sched,
                       MoveNode& src,
                       MoveNode& mn,
                       bool force = false,
                       bool updatePrologMove = true) :
                       BFOptimization(sched), src_(src), dst_(mn),
                       force_(force),
                       updatePrologMove_(updatePrologMove),
                       duplicatedSrc_(false) {}
    bool operator()() override;
    ~BFMergeAndKeepUser() {}
protected:
    void undoOnlyMe() override;
 
    bool updateEdges(MoveNode* src, MoveNode* dst, bool loopBypass, bool pre);
 
private:
    MoveNode& src_;
    MoveNode& dst_;
    bool force_;
    TCEString reg_;
    bool updatePrologMove_;
    bool duplicatedSrc_;
};