43 void InstCombinerImpl::PHIArgMergedDebugLoc(Instruction *Inst, PHINode &PN) {  in PHIArgMergedDebugLoc()
106 bool InstCombinerImpl::foldIntegerTypedPHI(PHINode &PN) {  in foldIntegerTypedPHI()
170     if (isa<PHINode>(Arg)) {  in foldIntegerTypedPHI()
193   PHINode *MatchingPtrPHI = nullptr;  in foldIntegerTypedPHI()
195   for (PHINode &PtrPHI : BB->phis()) {  in foldIntegerTypedPHI()
242         if (isa<PHINode>(Inst) && BB->getFirstInsertionPt() == BB->end())  in foldIntegerTypedPHI()
248   PHINode *NewPtrPHI = PHINode::Create(  in foldIntegerTypedPHI()
264     assert((isa<PHINode>(IncomingVal) ||  in foldIntegerTypedPHI()
285         if (isa<PHINode>(IncomingI))  in foldIntegerTypedPHI()
307 Instruction *InstCombinerImpl::foldPHIArgIntToPtrToPHI(PHINode &PN) {  in foldPHIArgIntToPtrToPHI()
331 InstCombinerImpl::foldPHIArgInsertValueInstructionIntoPHI(PHINode &PN) {  in foldPHIArgInsertValueInstructionIntoPHI()
343   std::array<PHINode *, 2> NewOperands;  in foldPHIArgInsertValueInstructionIntoPHI()
348     NewOperand = PHINode::Create(  in foldPHIArgInsertValueInstructionIntoPHI()
371 InstCombinerImpl::foldPHIArgExtractValueInstructionIntoPHI(PHINode &PN) {  in foldPHIArgExtractValueInstructionIntoPHI()
386   auto *NewAggregateOperand = PHINode::Create(  in foldPHIArgExtractValueInstructionIntoPHI()
407 Instruction *InstCombinerImpl::foldPHIArgBinOpIntoPHI(PHINode &PN) {  in foldPHIArgBinOpIntoPHI()
448   PHINode *NewLHS = nullptr, *NewRHS = nullptr;  in foldPHIArgBinOpIntoPHI()
450     NewLHS = PHINode::Create(LHSType, PN.getNumIncomingValues(),  in foldPHIArgBinOpIntoPHI()
458     NewRHS = PHINode::Create(RHSType, PN.getNumIncomingValues(),  in foldPHIArgBinOpIntoPHI()
502 Instruction *InstCombinerImpl::foldPHIArgGEPIntoPHI(PHINode &PN) {  in foldPHIArgGEPIntoPHI()
576   SmallVector<PHINode*, 16> OperandPhis(FixedOperands.size());  in foldPHIArgGEPIntoPHI()
583     PHINode *NewPN =  in foldPHIArgGEPIntoPHI()
584         PHINode::Create(FirstOp->getType(), E, FirstOp->getName() + ".pn");  in foldPHIArgGEPIntoPHI()
601         if (PHINode *OpPhi = OperandPhis[Op])  in foldPHIArgGEPIntoPHI()
665 Instruction *InstCombinerImpl::foldPHIArgLoadIntoPHI(PHINode &PN) {  in foldPHIArgLoadIntoPHI()
728   PHINode *NewPN = PHINode::Create(FirstLI->getOperand(0)->getType(),  in foldPHIArgLoadIntoPHI()
789 Instruction *InstCombinerImpl::foldPHIArgZextsIntoPHI(PHINode &Phi) {  in foldPHIArgZextsIntoPHI()
851   PHINode *NewPhi = PHINode::Create(NarrowType, NumIncomingValues,  in foldPHIArgZextsIntoPHI()
863 Instruction *InstCombinerImpl::foldPHIArgOpIntoPHI(PHINode &PN) {  in foldPHIArgOpIntoPHI()
922   PHINode *NewPN = PHINode::Create(FirstInst->getOperand(0)->getType(),  in foldPHIArgOpIntoPHI()
977 static bool isDeadPHICycle(PHINode *PN,  in isDeadPHICycle()
978                            SmallPtrSetImpl<PHINode *> &PotentiallyDeadPHIs) {  in isDeadPHICycle()
990   if (PHINode *PU = dyn_cast<PHINode>(PN->user_back()))  in isDeadPHICycle()
999 static bool PHIsEqualValue(PHINode *PN, Value *&NonPhiInVal,  in PHIsEqualValue()
1000                            SmallPtrSetImpl<PHINode *> &ValueEqualPHIs) {  in PHIsEqualValue()
1012     if (PHINode *OpPN = dyn_cast<PHINode>(Op)) {  in PHIsEqualValue()
1027 static ConstantInt *getAnyNonZeroConstInt(PHINode &PN) {  in getAnyNonZeroConstInt()
1056   PHINode *PN;        // The PHI that was lowered.
1060   LoweredPHIRecord(PHINode *Phi, unsigned Sh, Type *Ty)  in LoweredPHIRecord()
1064   LoweredPHIRecord(PHINode *Phi, unsigned Sh) : PN(Phi), Shift(Sh), Width(0) {}  in LoweredPHIRecord()
1078       return DenseMapInfo<PHINode*>::getHashValue(Val.PN) ^ (Val.Shift>>3) ^  in getHashValue()
1098 Instruction *InstCombinerImpl::SliceUpIllegalIntegerPHI(PHINode &FirstPhi) {  in SliceUpIllegalIntegerPHI()
1107   SmallVector<PHINode*, 8> PHIsToSlice;  in SliceUpIllegalIntegerPHI()
1108   SmallPtrSet<PHINode*, 8> PHIsInspected;  in SliceUpIllegalIntegerPHI()
1114     PHINode *PN = PHIsToSlice[PHIId];  in SliceUpIllegalIntegerPHI()
1146       if (PHINode *UserPN = dyn_cast<PHINode>(UserI)) {  in SliceUpIllegalIntegerPHI()
1192   DenseMap<LoweredPHIRecord, PHINode*> ExtractedVals;  in SliceUpIllegalIntegerPHI()
1196     PHINode *PN = PHIsToSlice[PHIId];  in SliceUpIllegalIntegerPHI()
1200     PHINode *EltPHI;  in SliceUpIllegalIntegerPHI()
1207       EltPHI = PHINode::Create(Ty, PN->getNumIncomingValues(),  in SliceUpIllegalIntegerPHI()
1231         if (PHINode *InPHI = dyn_cast<PHINode>(PN)) {  in SliceUpIllegalIntegerPHI()
1255         if (PHINode *OldInVal = dyn_cast<PHINode>(InVal))  in SliceUpIllegalIntegerPHI()
1278   for (PHINode *PHI : drop_begin(PHIsToSlice))  in SliceUpIllegalIntegerPHI()
1283 static Value *simplifyUsingControlFlow(InstCombiner &Self, PHINode &PN,  in simplifyUsingControlFlow()
1386 static Value *foldDependentIVs(PHINode &PN, IRBuilderBase &Builder) {  in foldDependentIVs()
1408   PHINode *Iv2;  in foldDependentIVs()
1436 Instruction *InstCombinerImpl::visitPHINode(PHINode &PN) {  in visitPHINode()
1482     if (PHINode *PU = dyn_cast<PHINode>(PHIUser)) {  in visitPHINode()
1483       SmallPtrSet<PHINode*, 16> PotentiallyDeadPHIs;  in visitPHINode()
1569            isa<PHINode>(PN.getIncomingValue(InValNo)))  in visitPHINode()
1580         if (OpVal != NonPhiInVal && !isa<PHINode>(OpVal))  in visitPHINode()
1588       SmallPtrSet<PHINode *, 16> ValueEqualPHIs;  in visitPHINode()
1624   for (PHINode &IdenticalPN : PN.getParent()->phis()) {  in visitPHINode()