69   if (!isa<PHINode>(BB->begin())) return;  in FoldSingleEntryPHINodes()
78   while (PHINode *PN = dyn_cast<PHINode>(BB->begin())) {  in FoldSingleEntryPHINodes()
103        PHINode *PN = dyn_cast<PHINode>(I); ++I)  in DeleteDeadPHIs()
108     if (PHINode *PN = dyn_cast_or_null<PHINode>(PHIs[i].operator Value*()))  in DeleteDeadPHIs()
142     if (PHINode *PN = dyn_cast<PHINode>(BI)) {  in MergeBlockIntoPredecessor()
151   if (isa<PHINode>(BB->front()))  in MergeBlockIntoPredecessor()
275   while (isa<PHINode>(SplitIt) || isa<LandingPadInst>(SplitIt))  in SplitBlock()
389   for (BasicBlock::iterator I = OrigBB->begin(); isa<PHINode>(I); ) {  in UpdatePHINodes()
390     PHINode *PN = cast<PHINode>(I++);  in UpdatePHINodes()
431     PHINode *NewPHI =  in UpdatePHINodes()
432         PHINode::Create(PN->getType(), Preds.size(), PN->getName() + ".ph", BI);  in UpdatePHINodes()
489     for (BasicBlock::iterator I = BB->begin(); isa<PHINode>(I); ++I)  in SplitBlockPredecessors()
490       cast<PHINode>(I)->addIncoming(UndefValue::get(I->getType()), NewBB);  in SplitBlockPredecessors()
597     PHINode *PN = PHINode::Create(LPad->getType(), 2, "lpad.phi", LPad);  in SplitLandingPadPredecessors()
636     if (PHINode *PN = dyn_cast<PHINode>(V)) {  in FoldReturnIntoUncondBranch()
743   PHINode *SomePHI = dyn_cast<PHINode>(BB->begin());  in GetIfCondition()