Transforms/IPO/GlobalOpt.cpp

638     } else if (const PHINode *PN = dyn_cast<PHINode>(U)) {
641       if (PHIs.insert(PN) && !AllUsesOfValueWillTrapIfNull(PN, PHIs))
986     if (const PHINode *PN = dyn_cast<PHINode>(Inst)) {
989       if (PHIs.insert(PN))
990         if (!ValueIsOnlyUsedLocallyOrStoredToOneGlobal(PN, GV, PHIs))
1022     } else if (PHINode *PN = dyn_cast<PHINode>(U)) {
1025       InsertPt = PN->getIncomingBlock(Alloc->use_begin())->getTerminator();
1080     if (const PHINode *PN = dyn_cast<PHINode>(User)) {
1081       if (!LoadUsingPHIsPerLoad.insert(PN))
1085       if (!LoadUsingPHIs.insert(PN))
1090       if (!LoadUsesSimpleEnoughForHeapSRA(PN,
1127     const PHINode *PN = *I;
1128     for (unsigned op = 0, e = PN->getNumIncomingValues(); op != e; ++op) {
1129       Value *InVal = PN->getIncomingValue(op);
1178   } else if (PHINode *PN = dyn_cast<PHINode>(V)) {
1179     // PN's type is pointer to struct.  Make a new PHI of pointer to struct
1181     StructType *ST = cast<StructType>(PN->getType()->getPointerElementType());
1185                      PN->getNumIncomingValues(),
1186                      PN->getName()+".f"+Twine(FieldNo), PN);
1188     PHIsToRewrite.push_back(std::make_pair(PN, FieldNo));
1245   PHINode *PN = cast<PHINode>(LoadUser);
1246   if (!InsertedScalarizedValues.insert(std::make_pair(PN,
1252   for (Value::use_iterator UI = PN->use_begin(), E = PN->use_end(); UI != E; ) {
1422     PHINode *PN = PHIsToRewrite.back().first;
1425     PHINode *FieldPN = cast<PHINode>(InsertedScalarizedValues[PN][FieldNo]);
1429     for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i) {
1430       Value *InVal = PN->getIncomingValue(i);
1433       FieldPN->addIncoming(InVal, PN->getIncomingBlock(i));
1441     if (PHINode *PN = dyn_cast<PHINode>(I->first))
1442       PN->dropAllReferences();
1451     if (PHINode *PN = dyn_cast<PHINode>(I->first))
1452       PN->eraseFromParent();
2770     PHINode *PN = 0;
2772          (PN = dyn_cast<PHINode>(CurInst)); ++CurInst)
2773       setVal(PN, getVal(PN->getIncomingValueForBlock(CurBB)));