250     while (PHINode *PN = dyn_cast<PHINode>(&front())) {  in removePredecessor()  local
252       PN->removeIncomingValue(Pred, !DontDeleteUselessPHIs);  in removePredecessor()
256         if (PN->getIncomingValue(0) != PN)  in removePredecessor()
257           PN->replaceAllUsesWith(PN->getIncomingValue(0));  in removePredecessor()
260           PN->replaceAllUsesWith(UndefValue::get(PN->getType()));  in removePredecessor()
270     PHINode *PN;  in removePredecessor()  local
271     for (iterator II = begin(); (PN = dyn_cast<PHINode>(II)); ) {  in removePredecessor()
273       PN->removeIncomingValue(Pred, false);  in removePredecessor()
277       if (!DontDeleteUselessPHIs && (PNV = PN->hasConstantValue()))  in removePredecessor()
278         if (PNV != PN) {  in removePredecessor()
279           PN->replaceAllUsesWith(PNV);  in removePredecessor()
280           PN->eraseFromParent();  in removePredecessor()
324     PHINode *PN;  in splitBasicBlock()  local
326          (PN = dyn_cast<PHINode>(II)); ++II) {  in splitBasicBlock()
327       int IDX = PN->getBasicBlockIndex(this);  in splitBasicBlock()
329         PN->setIncomingBlock((unsigned)IDX, New);  in splitBasicBlock()
330         IDX = PN->getBasicBlockIndex(this);  in splitBasicBlock()
348       PHINode *PN = dyn_cast<PHINode>(II);  in replaceSuccessorsPhiUsesWith()  local
349       if (!PN)  in replaceSuccessorsPhiUsesWith()
352       while ((i = PN->getBasicBlockIndex(this)) >= 0)  in replaceSuccessorsPhiUsesWith()
353         PN->setIncomingBlock(i, New);  in replaceSuccessorsPhiUsesWith()