BFRescheduleResultClose.cc

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/**
 * @file BFScheduleResultClose.cc
 *
 * Definition of BFScheduleResultClose class.
 *
 * Tries to reschedule a result move closer to operands into more
 * optimal position.
 *
 * @author Heikki Kultala 2014-2020(heikki.kultala-no.spam-tuni.fi)
 * @note rating: red
 */
 
#include "BFRescheduleResultClose.hh"
#include "BFUnscheduleMove.hh"
#include "BFScheduleTD.hh"
#include "BFRescheduleSuccessorsClose.hh"
#include "Move.hh"
bool BFRescheduleResultClose::operator()() {
    if (result_.move().isControlFlowMove()) {
        return false;
    }
    int originalCycle = result_.cycle();
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
    std::cerr << "\tPushing result close: " <<  result_.toString() << std::endl;
#endif
    BFUnscheduleMove* unsched = new BFUnscheduleMove(sched_, result_);
    if (!(runPreChild(unsched))) {
        return false;
    }
 
    BFScheduleTD* td = new BFScheduleTD(sched_, result_, ec_, false);
    if ((!runPreChild(td)) || result_.cycle() == originalCycle) {
        undo();
        return false;
    }
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
    std::cerr << "\tPushed result close: " <<  result_.toString() << std::endl;
#endif
    auto succs = new BFRescheduleSuccessorsClose(sched_, result_);
    runPostChild(succs);
    return true;
}