282   if (!TopCand.isValid() || TopCand.SU->isScheduled ||  in pickNodeBidirectional()
283       TopCand.Policy != TopPolicy) {  in pickNodeBidirectional()
284     TopCand.reset(CandPolicy());  in pickNodeBidirectional()
285     pickNodeFromQueue(Top, TopPolicy, DAG->getTopRPTracker(), TopCand);  in pickNodeBidirectional()
286     assert(TopCand.Reason != NoCand && "failed to find the first candidate");  in pickNodeBidirectional()
288     LLVM_DEBUG(traceCandidate(TopCand));  in pickNodeBidirectional()
294       assert(TCand.SU == TopCand.SU &&  in pickNodeBidirectional()
301   LLVM_DEBUG(dbgs() << "Top Cand: "; traceCandidate(TopCand);  in pickNodeBidirectional()
304   TopCand.Reason = NoCand;  in pickNodeBidirectional()
305   tryCandidate(Cand, TopCand, nullptr);  in pickNodeBidirectional()
306   if (TopCand.Reason != NoCand) {  in pickNodeBidirectional()
307     Cand.setBest(TopCand);  in pickNodeBidirectional()
329         TopCand.reset(NoPolicy);  in pickNode()
330         pickNodeFromQueue(Top, NoPolicy, DAG->getTopRPTracker(), TopCand);  in pickNode()
331         assert(TopCand.Reason != NoCand && "failed to find a candidate");  in pickNode()
332         SU = TopCand.SU;  in pickNode()