90     if (Element && isa<UndefValue>(Element)) {  in foldConstVectorToAPInt()
229         if (Src && isa<UndefValue>(Src))  in FoldBitCast()
264     if (isa<UndefValue>(Element)) {  in FoldBitCast()
266       Result.append(Ratio, UndefValue::get(DstEltTy));  in FoldBitCast()
435   if (isa<ConstantAggregateZero>(C) || isa<UndefValue>(C))  in ReadDataFromGlobal()
626     return UndefValue::get(IntType);  in FoldReinterpretLoadFromConstPtr()
630     return UndefValue::get(IntType);  in FoldReinterpretLoadFromConstPtr()
772       if (isa<UndefValue>(GV->getInitializer()))  in ConstantFoldLoadFromConstPtr()
773         return UndefValue::get(Ty);  in ConstantFoldLoadFromConstPtr()
1201       if (isa<UndefValue>(Incoming))  in ConstantFoldInstruction()
1217     return CommonValue ? CommonValue : UndefValue::get(PN->getType());  in ConstantFoldInstruction()
1857   if (isa<UndefValue>(Op)) {  in getConstIntOrUndef()
1930   if (isa<UndefValue>(Operands[0])) {  in ConstantFoldScalarCall1()
2400     bool IsOp0Undef = isa<UndefValue>(Operands[0]);  in ConstantFoldScalarCall2()
2401     bool IsOp1Undef = isa<UndefValue>(Operands[1]);  in ConstantFoldScalarCall2()
2569         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2576         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2583         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2590         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2652         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2662         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2675         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2687         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2818     return UndefValue::get(Ty);  in ConstantFoldAMDGCNPermIntrinsic()
2844     return UndefValue::get(Ty);  in ConstantFoldAMDGCNPermIntrinsic()
2961       return UndefValue::get(Ty);  in ConstantFoldScalarCall3()
3027       if (isa<UndefValue>(MaskElt)) {  in ConstantFoldFixedVectorCall()