+ if (I->overlaps(D)) {
+ // Extend the latency if needed. Equivalent to removePred(I) + addPred(D).
+ if (I->getLatency() < D.getLatency()) {
+ SUnit *PredSU = I->getSUnit();
+ // Find the corresponding successor in N.
+ SDep ForwardD = *I;
+ ForwardD.setSUnit(this);
+ for (SmallVectorImpl<SDep>::iterator II = PredSU->Succs.begin(),
+ EE = PredSU->Succs.end(); II != EE; ++II) {
+ if (*II == ForwardD) {
+ II->setLatency(D.getLatency());
+ break;
+ }
+ }
+ I->setLatency(D.getLatency());
+ }
+ return false;
+ }
+ }