4038   PHINode *PHI = nullptr;  in ensureValueAvailableInSuccessor()  local
4043       PHI = cast<PHINode>(I);  in ensureValueAvailableInSuccessor()
4050       if (PHI->getIncomingValueForBlock(OtherPredBB) == AlternativeV)  in ensureValueAvailableInSuccessor()
4052       PHI = nullptr;  in ensureValueAvailableInSuccessor()
4054   if (PHI)  in ensureValueAvailableInSuccessor()
4055     return PHI;  in ensureValueAvailableInSuccessor()
4062   PHI = PHINode::Create(V->getType(), 2, "simplifycfg.merge");  in ensureValueAvailableInSuccessor()
4063   PHI->insertBefore(Succ->begin());  in ensureValueAvailableInSuccessor()
4064   PHI->addIncoming(V, BB);  in ensureValueAvailableInSuccessor()
4067       PHI->addIncoming(  in ensureValueAvailableInSuccessor()
4069   return PHI;  in ensureValueAvailableInSuccessor()
5763   for (PHINode &PHI : Succ->phis()) {  in FindPHIForConditionForwarding()
5764     int Idx = PHI.getBasicBlockIndex(BB);  in FindPHIForConditionForwarding()
5767     Value *InValue = PHI.getIncomingValue(Idx);  in FindPHIForConditionForwarding()
5772     return &PHI;  in FindPHIForConditionForwarding()
5957   for (PHINode &PHI : (*CommonDest)->phis()) {  in getCaseResults()
5958     int Idx = PHI.getBasicBlockIndex(Pred);  in getCaseResults()
5963         LookupConstant(PHI.getIncomingValue(Idx), ConstantPool);  in getCaseResults()
5971     Res.push_back(std::make_pair(&PHI, ConstVal));  in getCaseResults()
5997 static bool initializeUniqueCases(SwitchInst *SI, PHINode *&PHI,  in initializeUniqueCases()  argument
6030     if (!PHI)  in initializeUniqueCases()
6031       PHI = Results[0].first;  in initializeUniqueCases()
6032     else if (PHI != Results[0].first)  in initializeUniqueCases()
6130 static void removeSwitchAfterSelectFold(SwitchInst *SI, PHINode *PHI,  in removeSwitchAfterSelectFold()  argument
6137   BasicBlock *DestBB = PHI->getParent();  in removeSwitchAfterSelectFold()
6145   PHI->removeIncomingValueIf(  in removeSwitchAfterSelectFold()
6146       [&](unsigned Idx) { return PHI->getIncomingBlock(Idx) == SelectBB; });  in removeSwitchAfterSelectFold()
6147   PHI->addIncoming(SelectValue, SelectBB);  in removeSwitchAfterSelectFold()
6171   PHINode *PHI = nullptr;  in trySwitchToSelect()  local
6176   if (!initializeUniqueCases(SI, PHI, CommonDest, UniqueResults, DefaultResult,  in trySwitchToSelect()
6180   assert(PHI != nullptr && "PHI for value select not found");  in trySwitchToSelect()
6187   removeSwitchAfterSelectFold(SI, PHI, SelectValue, Builder, DTU);  in trySwitchToSelect()
6700       PHINode *PHI = I.first;  in SwitchToLookupTable()  local
6702       if (!ResultLists.count(PHI))  in SwitchToLookupTable()
6703         PHIs.push_back(PHI);  in SwitchToLookupTable()
6704       ResultLists[PHI].push_back(std::make_pair(CaseVal, Value));  in SwitchToLookupTable()
6709   for (PHINode *PHI : PHIs) {  in SwitchToLookupTable()
6710     ResultTypes[PHI] = ResultLists[PHI][0].second->getType();  in SwitchToLookupTable()
6723     PHINode *PHI = I.first;  in SwitchToLookupTable()  local
6725     DefaultResults[PHI] = Result;  in SwitchToLookupTable()
6897   for (PHINode *PHI : PHIs) {  in SwitchToLookupTable()
6898     const ResultListTy &ResultList = ResultLists[PHI];  in SwitchToLookupTable()
6902         AllHolesAreUndefined ? ResultLists[PHI][0].second : DefaultResults[PHI];  in SwitchToLookupTable()
6912       BasicBlock *PhiBlock = PHI->getParent();  in SwitchToLookupTable()
6914       for (auto *User : PHI->users()) {  in SwitchToLookupTable()
6919     PHI->addIncoming(Result, LookupBB);  in SwitchToLookupTable()
7711   for (PHINode &PHI : BB->phis())  in removeUndefIntroducingPredecessor()
7712     for (unsigned i = 0, e = PHI.getNumIncomingValues(); i != e; ++i)  in removeUndefIntroducingPredecessor()
7713       if (passingValueIsAlwaysUndefined(PHI.getIncomingValue(i), &PHI)) {  in removeUndefIntroducingPredecessor()
7714         BasicBlock *Predecessor = PHI.getIncomingBlock(i);  in removeUndefIntroducingPredecessor()