33 void InstCombiner::PHIArgMergedDebugLoc(Instruction *Inst, PHINode &PN) {  in PHIArgMergedDebugLoc()
96 Instruction *InstCombiner::FoldIntegerTypedPHI(PHINode &PN) {  in FoldIntegerTypedPHI()
159     if (isa<PHINode>(Arg)) {  in FoldIntegerTypedPHI()
182   PHINode *MatchingPtrPHI = nullptr;  in FoldIntegerTypedPHI()
189     PHINode *PtrPHI = dyn_cast<PHINode>(II);  in FoldIntegerTypedPHI()
230   PHINode *NewPtrPHI = PHINode::Create(  in FoldIntegerTypedPHI()
246     assert((isa<PHINode>(IncomingVal) ||  in FoldIntegerTypedPHI()
266         if (isa<PHINode>(IncomingI))  in FoldIntegerTypedPHI()
284 Instruction *InstCombiner::FoldPHIArgBinOpIntoPHI(PHINode &PN) {  in FoldPHIArgBinOpIntoPHI()
325   PHINode *NewLHS = nullptr, *NewRHS = nullptr;  in FoldPHIArgBinOpIntoPHI()
327     NewLHS = PHINode::Create(LHSType, PN.getNumIncomingValues(),  in FoldPHIArgBinOpIntoPHI()
335     NewRHS = PHINode::Create(RHSType, PN.getNumIncomingValues(),  in FoldPHIArgBinOpIntoPHI()
377 Instruction *InstCombiner::FoldPHIArgGEPIntoPHI(PHINode &PN) {  in FoldPHIArgGEPIntoPHI()
448   SmallVector<PHINode*, 16> OperandPhis(FixedOperands.size());  in FoldPHIArgGEPIntoPHI()
454     PHINode *NewPN = PHINode::Create(FirstOp->getType(), e,  in FoldPHIArgGEPIntoPHI()
472         if (PHINode *OpPhi = OperandPhis[op])  in FoldPHIArgGEPIntoPHI()
532 Instruction *InstCombiner::FoldPHIArgLoadIntoPHI(PHINode &PN) {  in FoldPHIArgLoadIntoPHI()
593   PHINode *NewPN = PHINode::Create(FirstLI->getOperand(0)->getType(),  in FoldPHIArgLoadIntoPHI()
650 Instruction *InstCombiner::FoldPHIArgZextsIntoPHI(PHINode &Phi) {  in FoldPHIArgZextsIntoPHI()
712   PHINode *NewPhi = PHINode::Create(NarrowType, NumIncomingValues,  in FoldPHIArgZextsIntoPHI()
724 Instruction *InstCombiner::FoldPHIArgOpIntoPHI(PHINode &PN) {  in FoldPHIArgOpIntoPHI()
779   PHINode *NewPN = PHINode::Create(FirstInst->getOperand(0)->getType(),  in FoldPHIArgOpIntoPHI()
832 static bool DeadPHICycle(PHINode *PN,  in DeadPHICycle()
833                          SmallPtrSetImpl<PHINode*> &PotentiallyDeadPHIs) {  in DeadPHICycle()
845   if (PHINode *PU = dyn_cast<PHINode>(PN->user_back()))  in DeadPHICycle()
854 static bool PHIsEqualValue(PHINode *PN, Value *NonPhiInVal,  in PHIsEqualValue()
855                            SmallPtrSetImpl<PHINode*> &ValueEqualPHIs) {  in PHIsEqualValue()
867     if (PHINode *OpPN = dyn_cast<PHINode>(Op)) {  in PHIsEqualValue()
879 static ConstantInt *GetAnyNonZeroConstInt(PHINode &PN) {  in GetAnyNonZeroConstInt()
908   PHINode *PN;        // The PHI that was lowered.
912   LoweredPHIRecord(PHINode *pn, unsigned Sh, Type *Ty)  in LoweredPHIRecord()
916   LoweredPHIRecord(PHINode *pn, unsigned Sh)  in LoweredPHIRecord()
931       return DenseMapInfo<PHINode*>::getHashValue(Val.PN) ^ (Val.Shift>>3) ^  in getHashValue()
951 Instruction *InstCombiner::SliceUpIllegalIntegerPHI(PHINode &FirstPhi) {  in SliceUpIllegalIntegerPHI()
960   SmallVector<PHINode*, 8> PHIsToSlice;  in SliceUpIllegalIntegerPHI()
961   SmallPtrSet<PHINode*, 8> PHIsInspected;  in SliceUpIllegalIntegerPHI()
967     PHINode *PN = PHIsToSlice[PHIId];  in SliceUpIllegalIntegerPHI()
989       if (PHINode *UserPN = dyn_cast<PHINode>(UserI)) {  in SliceUpIllegalIntegerPHI()
1030   DenseMap<LoweredPHIRecord, PHINode*> ExtractedVals;  in SliceUpIllegalIntegerPHI()
1034     PHINode *PN = PHIsToSlice[PHIId];  in SliceUpIllegalIntegerPHI()
1038     PHINode *EltPHI;  in SliceUpIllegalIntegerPHI()
1045       EltPHI = PHINode::Create(Ty, PN->getNumIncomingValues(),  in SliceUpIllegalIntegerPHI()
1068         if (PHINode *InPHI = dyn_cast<PHINode>(PN)) {  in SliceUpIllegalIntegerPHI()
1092         if (PHINode *OldInVal = dyn_cast<PHINode>(PN->getIncomingValue(i)))  in SliceUpIllegalIntegerPHI()
1122 Instruction *InstCombiner::visitPHINode(PHINode &PN) {  in visitPHINode()
1149     if (PHINode *PU = dyn_cast<PHINode>(PHIUser)) {  in visitPHINode()
1150       SmallPtrSet<PHINode*, 16> PotentiallyDeadPHIs;  in visitPHINode()
1202            isa<PHINode>(PN.getIncomingValue(InValNo)))  in visitPHINode()
1212         if (OpVal != NonPhiInVal && !isa<PHINode>(OpVal))  in visitPHINode()
1220         SmallPtrSet<PHINode*, 16> ValueEqualPHIs;  in visitPHINode()
1231   PHINode *FirstPN = cast<PHINode>(PN.getParent()->begin());  in visitPHINode()