521 bool ScheduleDAGMI::canAddEdge(SUnit *SuccSU, SUnit *PredSU) {  in canAddEdge()  argument
522   return SuccSU == &ExitSU || !Topo.IsReachable(PredSU, SuccSU);  in canAddEdge()
525 bool ScheduleDAGMI::addEdge(SUnit *SuccSU, const SDep &PredDep) {  in addEdge()  argument
526   if (SuccSU != &ExitSU) {  in addEdge()
529     if (Topo.IsReachable(PredDep.getSUnit(), SuccSU))  in addEdge()
531     Topo.AddPred(SuccSU, PredDep.getSUnit());  in addEdge()
533   SuccSU->addPred(PredDep, /*Required=*/!PredDep.isArtificial());  in addEdge()
543   SUnit *SuccSU = SuccEdge->getSUnit();  in releaseSucc()  local
546     --SuccSU->WeakPredsLeft;  in releaseSucc()
548       NextClusterSucc = SuccSU;  in releaseSucc()
552   if (SuccSU->NumPredsLeft == 0) {  in releaseSucc()
554     SuccSU->dump(this);  in releaseSucc()
561   if (SuccSU->TopReadyCycle < SU->TopReadyCycle + SuccEdge->getLatency())  in releaseSucc()
562     SuccSU->TopReadyCycle = SU->TopReadyCycle + SuccEdge->getLatency();  in releaseSucc()
564   --SuccSU->NumPredsLeft;  in releaseSucc()
565   if (SuccSU->NumPredsLeft == 0 && SuccSU != &ExitSU)  in releaseSucc()
566     SchedImpl->releaseTopNode(SuccSU);  in releaseSucc()