230   if (!TopCand.isValid() || TopCand.SU->isScheduled ||  in pickNodeBidirectional()
231       TopCand.Policy != TopPolicy) {  in pickNodeBidirectional()
232     TopCand.reset(CandPolicy());  in pickNodeBidirectional()
233     pickNodeFromQueue(Top, TopPolicy, DAG->getTopRPTracker(), TopCand);  in pickNodeBidirectional()
234     assert(TopCand.Reason != NoCand && "failed to find the first candidate");  in pickNodeBidirectional()
236     LLVM_DEBUG(traceCandidate(TopCand));  in pickNodeBidirectional()
242       assert(TCand.SU == TopCand.SU &&  in pickNodeBidirectional()
249   LLVM_DEBUG(dbgs() << "Top Cand: "; traceCandidate(TopCand);  in pickNodeBidirectional()
252   TopCand.Reason = NoCand;  in pickNodeBidirectional()
253   GenericScheduler::tryCandidate(Cand, TopCand, nullptr);  in pickNodeBidirectional()
254   if (TopCand.Reason != NoCand) {  in pickNodeBidirectional()
255     Cand.setBest(TopCand);  in pickNodeBidirectional()
277         TopCand.reset(NoPolicy);  in pickNode()
278         pickNodeFromQueue(Top, NoPolicy, DAG->getTopRPTracker(), TopCand);  in pickNode()
279         assert(TopCand.Reason != NoCand && "failed to find a candidate");  in pickNode()
280         SU = TopCand.SU;  in pickNode()