85     if (Element && isa<UndefValue>(Element)) {  in foldConstVectorToAPInt()
221         if (Src && isa<UndefValue>(Src))  in FoldBitCast()
256     if (isa<UndefValue>(Element)) {  in FoldBitCast()
258       Result.append(Ratio, UndefValue::get(DstEltTy));  in FoldBitCast()
428   if (isa<ConstantAggregateZero>(C) || isa<UndefValue>(C))  in ReadDataFromGlobal()
594     return UndefValue::get(IntType);  in FoldReinterpretLoadFromConst()
603     return UndefValue::get(IntType);  in FoldReinterpretLoadFromConst()
709     return UndefValue::get(Ty);  in ConstantFoldLoadFromConst()
763   if (isa<UndefValue>(C))  in ConstantFoldLoadFromUniformValue()
764     return UndefValue::get(Ty);  in ConstantFoldLoadFromUniformValue()
1171       if (isa<UndefValue>(Incoming))  in ConstantFoldInstruction()
1187     return CommonValue ? CommonValue : UndefValue::get(PN->getType());  in ConstantFoldInstruction()
1894   if (isa<UndefValue>(Op)) {  in getConstIntOrUndef()
1960   if (isa<UndefValue>(Operands[0])) {  in ConstantFoldScalarCall1()
2450     bool IsOp0Undef = isa<UndefValue>(Operands[0]);  in ConstantFoldScalarCall2()
2451     bool IsOp1Undef = isa<UndefValue>(Operands[1]);  in ConstantFoldScalarCall2()
2629         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2700         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2715         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2742         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2873     return UndefValue::get(Ty);  in ConstantFoldAMDGCNPermIntrinsic()
2899     return UndefValue::get(Ty);  in ConstantFoldAMDGCNPermIntrinsic()
3016       return UndefValue::get(Ty);  in ConstantFoldScalarCall3()
3082       if (isa<UndefValue>(MaskElt)) {  in ConstantFoldFixedVectorCall()