85     if (Element && isa<UndefValue>(Element)) {  in foldConstVectorToAPInt()
221         if (Src && isa<UndefValue>(Src))  in FoldBitCast()
262     if (isa<UndefValue>(Element)) {  in FoldBitCast()
264       Result.append(Ratio, UndefValue::get(DstEltTy));  in FoldBitCast()
424   if (isa<ConstantAggregateZero>(C) || isa<UndefValue>(C))  in ReadDataFromGlobal()
760   if (isa<UndefValue>(C))  in ConstantFoldLoadFromUniformValue()
761     return UndefValue::get(Ty);  in ConstantFoldLoadFromUniformValue()
1141       if (isa<UndefValue>(Incoming))  in ConstantFoldInstruction()
1157     return CommonValue ? CommonValue : UndefValue::get(PN->getType());  in ConstantFoldInstruction()
1890   if (isa<UndefValue>(Op)) {  in getConstIntOrUndef()
2013   if (isa<UndefValue>(Operands[0])) {  in ConstantFoldScalarCall1()
2543     bool IsOp0Undef = isa<UndefValue>(Operands[0]);  in ConstantFoldScalarCall2()
2544     bool IsOp1Undef = isa<UndefValue>(Operands[1]);  in ConstantFoldScalarCall2()
2742         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2813         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2828         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2855         return UndefValue::get(Ty);  in ConstantFoldScalarCall2()
2989     return UndefValue::get(Ty);  in ConstantFoldAMDGCNPermIntrinsic()
3015     return UndefValue::get(Ty);  in ConstantFoldAMDGCNPermIntrinsic()
3132       return UndefValue::get(Ty);  in ConstantFoldScalarCall3()
3198       if (isa<UndefValue>(MaskElt)) {  in ConstantFoldFixedVectorCall()