465     if (CElt && isa<UndefValue>(CElt)) {  in simplifyX86varShift()
494         ConstantVec.push_back(UndefValue::get(SVT));  in simplifyX86varShift()
511       ShiftVecAmts.push_back(UndefValue::get(SVT));  in simplifyX86varShift()
532   if (isa<UndefValue>(Arg0) && isa<UndefValue>(Arg1))  in simplifyX86pack()
533     return UndefValue::get(ResTy);  in simplifyX86pack()
559       if (COp && isa<UndefValue>(COp)) {  in simplifyX86pack()
560         Vals.push_back(UndefValue::get(ResTy->getScalarType()));  in simplifyX86pack()
707   if (isa<UndefValue>(Arg))  in simplifyX86movmsk()
721       if (isa<UndefValue>(COp))  in simplifyX86movmsk()
821                         UndefValue::get(IntTy64)};  in simplifyX86extrq()
853       return UndefValue::get(II.getType());  in simplifyX86extrq()
874         ShuffleMask.push_back(UndefValue::get(IntTy32));  in simplifyX86extrq()
933     return UndefValue::get(II.getType());  in simplifyX86insertq()
955       ShuffleMask.push_back(UndefValue::get(IntTy32));  in simplifyX86insertq()
983                         UndefValue::get(IntTy64)};  in simplifyX86insertq()
1023     if (!COp || (!isa<UndefValue>(COp) && !isa<ConstantInt>(COp)))  in simplifyX86pshufb()
1026     if (isa<UndefValue>(COp)) {  in simplifyX86pshufb()
1027       Indexes[I] = UndefValue::get(MaskEltTy);  in simplifyX86pshufb()
1070     if (!COp || (!isa<UndefValue>(COp) && !isa<ConstantInt>(COp)))  in simplifyX86vpermilvar()
1073     if (isa<UndefValue>(COp)) {  in simplifyX86vpermilvar()
1074       Indexes[I] = UndefValue::get(MaskEltTy);  in simplifyX86vpermilvar()
1096   auto V2 = UndefValue::get(V1->getType());  in simplifyX86vpermilvar()
1118     if (!COp || (!isa<UndefValue>(COp) && !isa<ConstantInt>(COp)))  in simplifyX86vpermv()
1121     if (isa<UndefValue>(COp)) {  in simplifyX86vpermv()
1122       Indexes[I] = UndefValue::get(MaskEltTy);  in simplifyX86vpermv()
1133   auto V2 = UndefValue::get(VecTy);  in simplifyX86vpermv()
1180   if (ConstMask->isAllOnesValue() || isa<UndefValue>(ConstMask))  in maskIsAllOneOrUndef()
1185       if (MaskElt->isAllOnesValue() || isa<UndefValue>(MaskElt))  in maskIsAllOneOrUndef()
2448             Arg, UndefValue::get(ArgType), SubVecMask);  in visitCallInst()
3202         if (!Elt || !(isa<ConstantInt>(Elt) || isa<UndefValue>(Elt))) {  in visitCallInst()
3214         Value *Result = UndefValue::get(Op0->getType());  in visitCallInst()
3221           if (isa<UndefValue>(Mask->getAggregateElement(i)))  in visitCallInst()
3345     if (isa<UndefValue>(Src))  in visitCallInst()
3365     if (isa<UndefValue>(Src))  in visitCallInst()
3389     if (isa<UndefValue>(Src))  in visitCallInst()
3390       return replaceInstUsesWith(CI, UndefValue::get(II->getType()));  in visitCallInst()
3415       if (isa<UndefValue>(Src0))  in visitCallInst()
3416         return replaceInstUsesWith(*II, UndefValue::get(II->getType()));  in visitCallInst()
3418       if (isa<UndefValue>(Src1))  in visitCallInst()
3457       if (isa<UndefValue>(Src0))  in visitCallInst()
3458         return replaceInstUsesWith(*II, UndefValue::get(II->getType()));  in visitCallInst()
3509     if (isa<UndefValue>(Src0) && isa<UndefValue>(Src1))  in visitCallInst()
3510       return replaceInstUsesWith(*II, UndefValue::get(II->getType()));  in visitCallInst()
3521     if (isa<UndefValue>(Src0) && isa<UndefValue>(Src1))  in visitCallInst()
3522       return replaceInstUsesWith(*II, UndefValue::get(II->getType()));  in visitCallInst()
3530     if (isa<UndefValue>(Src))  in visitCallInst()
3604         if (!isa<UndefValue>(Src)) {  in visitCallInst()
3605           II->setArgOperand(I + 2, UndefValue::get(Src->getType()));  in visitCallInst()
3628     if (match(Src0, m_NaN()) || isa<UndefValue>(Src0)) {  in visitCallInst()
3630     } else if (match(Src1, m_NaN()) || isa<UndefValue>(Src1)) {  in visitCallInst()
3632     } else if (match(Src2, m_NaN()) || isa<UndefValue>(Src2)) {  in visitCallInst()
3843         isa<UndefValue>(Old))  in visitCallInst()
3847     II->setOperand(0, UndefValue::get(Old->getType()));  in visitCallInst()
3979     if (isa<UndefValue>(DerivedPtr))  in visitCallInst()
3981       return replaceInstUsesWith(*II, UndefValue::get(II->getType()));  in visitCallInst()
4242                 UndefValue::get(Type::getInt1PtrTy(Callee->getContext())),  in visitCallSite()
4247         replaceInstUsesWith(*OldCall, UndefValue::get(OldCall->getType()));  in visitCallSite()
4261       isa<UndefValue>(Callee)) {  in visitCallSite()
4266                           UndefValue::get(CS.getInstruction()->getType()));  in visitCallSite()
4277                   UndefValue::get(Type::getInt1PtrTy(Callee->getContext())),  in visitCallSite()
4571       NV = UndefValue::get(Caller->getType());  in transformConstExprCastCall()