lib/CodeGen/ScheduleDAG.cpp

76         SUnit *PredSU = I->getSUnit();
80         for (SmallVectorImpl<SDep>::iterator II = PredSU->Succs.begin(),
81                EE = PredSU->Succs.end(); II != EE; ++II) {
203       SUnit *PredSU = I->getSUnit();
204       if (PredSU->isHeightCurrent)
205         WorkList.push_back(PredSU);
244       SUnit *PredSU = I->getSUnit();
245       if (PredSU->isDepthCurrent)
247                                 PredSU->Depth + I->getLatency());
250         WorkList.push_back(PredSU);