BFRemoveEdge.cc

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/**
 * @file BFRemoveEdge.hh
 *
 * Definition of BF framework operation which removes a ddg edge.
 *
 * @author Heikki Kultala 2018-2020 (heikki.kultala-no.spam-tut.fi)
 * @note rating: red
 */
 
#include "BFRemoveEdge.hh"
#include "DataDependenceGraph.hh"
 
BFRemoveEdge::BFRemoveEdge(
    BF2Scheduler& sched,
    MoveNode& nTail, MoveNode& nHead,
    DataDependenceEdge& e) :
    BFOptimization(sched), e_(e), nTail_(nTail), nHead_(nHead) {}
 
bool BFRemoveEdge::operator()() {
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
    std::cerr << "\t\t\t\tRemoving edge: " << e_.toString()
              << " from: "<< nTail_.toString()
              << " to: " << nHead_.toString() << std::endl;
#endif
    ddg().rootGraph()->removeEdge(e_);
    return true;
}
 
void BFRemoveEdge::undoOnlyMe() {
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
    std::cerr << "\t\t\t\tRestoring edge: "  << e_.toString()
              << " from: " << nTail_.toString()
              << " to: " << nHead_.toString() << std::endl;
#endif
 
    ddg().rootGraph()->connectNodes(nTail_, nHead_, e_);
#ifdef DEBUG_BUBBLEFISH_SCHEDULER
    std::cerr << "\t\t\t\tRestored edge." << std::endl;
#endif
}
 
BFRemoveEdge::~BFRemoveEdge() {}