378     if (CElt && isa<UndefValue>(CElt)) {  in simplifyX86varShift()
407         ConstantVec.push_back(UndefValue::get(SVT));  in simplifyX86varShift()
424       ShiftVecAmts.push_back(UndefValue::get(SVT));  in simplifyX86varShift()
446   if (isa<UndefValue>(Arg))  in simplifyX86movmsk()
463     if (isa<UndefValue>(COp))  in simplifyX86movmsk()
543                         UndefValue::get(IntTy64)};  in simplifyX86extrq()
575       return UndefValue::get(II.getType());  in simplifyX86extrq()
596         ShuffleMask.push_back(UndefValue::get(IntTy32));  in simplifyX86extrq()
655     return UndefValue::get(II.getType());  in simplifyX86insertq()
677       ShuffleMask.push_back(UndefValue::get(IntTy32));  in simplifyX86insertq()
705                         UndefValue::get(IntTy64)};  in simplifyX86insertq()
745     if (!COp || (!isa<UndefValue>(COp) && !isa<ConstantInt>(COp)))  in simplifyX86pshufb()
748     if (isa<UndefValue>(COp)) {  in simplifyX86pshufb()
749       Indexes[I] = UndefValue::get(MaskEltTy);  in simplifyX86pshufb()
789     if (!COp || (!isa<UndefValue>(COp) && !isa<ConstantInt>(COp)))  in simplifyX86vpermilvar()
792     if (isa<UndefValue>(COp)) {  in simplifyX86vpermilvar()
793       Indexes[I] = UndefValue::get(MaskEltTy);  in simplifyX86vpermilvar()
820   auto V2 = UndefValue::get(V1->getType());  in simplifyX86vpermilvar()
841     if (!COp || (!isa<UndefValue>(COp) && !isa<ConstantInt>(COp)))  in simplifyX86vpermv()
844     if (isa<UndefValue>(COp)) {  in simplifyX86vpermv()
845       Indexes[I] = UndefValue::get(MaskEltTy);  in simplifyX86vpermv()
856   auto V2 = UndefValue::get(VecTy);  in simplifyX86vpermv()
983   if (isa<UndefValue>(Arg0))  in simplifyMinnumMaxnum()
987   if (isa<UndefValue>(Arg1))  in simplifyMinnumMaxnum()
1045   if (ConstMask->isAllOnesValue() || isa<UndefValue>(ConstMask))  in maskIsAllOneOrUndef()
1050       if (MaskElt->isAllOnesValue() || isa<UndefValue>(MaskElt))  in maskIsAllOneOrUndef()
1584             Arg, UndefValue::get(ArgType), SubVecMask);  in visitCallInst()
2049         if (!Elt || !(isa<ConstantInt>(Elt) || isa<UndefValue>(Elt))) {  in visitCallInst()
2061         Value *Result = UndefValue::get(Op0->getType());  in visitCallInst()
2068           if (isa<UndefValue>(Mask->getAggregateElement(i)))  in visitCallInst()
2192     if (isa<UndefValue>(Src))  in visitCallInst()
2193       return replaceInstUsesWith(CI, UndefValue::get(II->getType()));  in visitCallInst()
2319     if (isa<UndefValue>(DerivedPtr))  in visitCallInst()
2321       return replaceInstUsesWith(*II, UndefValue::get(II->getType()));  in visitCallInst()
2536                 UndefValue::get(Type::getInt1PtrTy(Callee->getContext())),  in visitCallSite()
2541         replaceInstUsesWith(*OldCall, UndefValue::get(OldCall->getType()));  in visitCallSite()
2553   if (isa<ConstantPointerNull>(Callee) || isa<UndefValue>(Callee)) {  in visitCallSite()
2558                           UndefValue::get(CS.getInstruction()->getType()));  in visitCallSite()
2569                   UndefValue::get(Type::getInt1PtrTy(Callee->getContext())),  in visitCallSite()
2869       NV = UndefValue::get(Caller->getType());  in transformConstExprCastCall()