78   while (PHINode *PN = dyn_cast<PHINode>(BB->begin())) {  in FoldSingleEntryPHINodes()  local
79     if (PN->getIncomingValue(0) != PN)  in FoldSingleEntryPHINodes()
80       PN->replaceAllUsesWith(PN->getIncomingValue(0));  in FoldSingleEntryPHINodes()
82       PN->replaceAllUsesWith(UndefValue::get(PN->getType()));  in FoldSingleEntryPHINodes()
85       MemDep->removeInstruction(PN);  // Memdep updates AA itself.  in FoldSingleEntryPHINodes()
86     else if (AA && isa<PointerType>(PN->getType()))  in FoldSingleEntryPHINodes()
87       AA->deleteValue(PN);  in FoldSingleEntryPHINodes()
89     PN->eraseFromParent();  in FoldSingleEntryPHINodes()
103        PHINode *PN = dyn_cast<PHINode>(I); ++I)  in DeleteDeadPHIs()
104     PHIs.push_back(PN);  in DeleteDeadPHIs()
108     if (PHINode *PN = dyn_cast_or_null<PHINode>(PHIs[i].operator Value*()))  in DeleteDeadPHIs()  local
109       Changed |= RecursivelyDeleteDeadPHINode(PN, TLI);  in DeleteDeadPHIs()
142     if (PHINode *PN = dyn_cast<PHINode>(BI)) {  in MergeBlockIntoPredecessor()  local
143       for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i)  in MergeBlockIntoPredecessor()
144         if (PN->getIncomingValue(i) == PN)  in MergeBlockIntoPredecessor()
386     PHINode *PN = cast<PHINode>(I++);  in UpdatePHINodes()  local
392       InVal = PN->getIncomingValueForBlock(Preds[0]);  in UpdatePHINodes()
394         if (InVal != PN->getIncomingValueForBlock(Preds[i])) {  in UpdatePHINodes()
405         PN->removeIncomingValue(Preds[i], false);  in UpdatePHINodes()
410         PHINode::Create(PN->getType(), Preds.size(), PN->getName() + ".ph", BI);  in UpdatePHINodes()
411       if (AA) AA->copyValue(PN, NewPHI);  in UpdatePHINodes()
415         Value *V = PN->removeIncomingValue(Preds[i], false);  in UpdatePHINodes()
424     PN->addIncoming(InVal, NewBB);  in UpdatePHINodes()
573     PHINode *PN = PHINode::Create(LPad->getType(), 2, "lpad.phi", LPad);  in SplitLandingPadPredecessors()  local
574     PN->addIncoming(Clone1, NewBB1);  in SplitLandingPadPredecessors()
575     PN->addIncoming(Clone2, NewBB2);  in SplitLandingPadPredecessors()
576     LPad->replaceAllUsesWith(PN);  in SplitLandingPadPredecessors()
612     if (PHINode *PN = dyn_cast<PHINode>(V)) {  in FoldReturnIntoUncondBranch()  local
613       if (PN->getParent() == BB) {  in FoldReturnIntoUncondBranch()
615           NewBC->setOperand(0, PN->getIncomingValueForBlock(Pred));  in FoldReturnIntoUncondBranch()
617           *i = PN->getIncomingValueForBlock(Pred);  in FoldReturnIntoUncondBranch()