640                                  const DataLayout &DL, SUnit *SUa, SUnit *SUb,  in iterateChainSucc()  argument
643   if (!SUa || !SUb || SUb == ExitSU)  in iterateChainSucc()
647   if (!Visited.insert(SUb).second)  in iterateChainSucc()
659   if (SUa->isSucc(SUb) ||  in iterateChainSucc()
660       isGlobalMemoryObject(AA, SUb->getInstr()))  in iterateChainSucc()
667       MIsNeedChainEdge(AA, MFI, DL, SUa->getInstr(), SUb->getInstr())) {  in iterateChainSucc()
668     SUb->addPred(SDep(SUa, SDep::MayAliasMem));  in iterateChainSucc()
674   for (SUnit::const_succ_iterator I = SUb->Succs.begin(), E = SUb->Succs.end();  in iterateChainSucc()
720                                       SUnit *SUb, std::set<SUnit *> &RejectList,  in addChainDependency()  argument
725   if (MIsNeedChainEdge(AA, MFI, DL, SUa->getInstr(), SUb->getInstr())) {  in addChainDependency()
728     SUb->addPred(Dep);  in addChainDependency()
732     RejectList.insert(SUb);  in addChainDependency()
735           << SUb->NodeNum << ")\n");  in addChainDependency()