1656   if (N0.getOpcode() == ISD::UNDEF)  in visitADD()
1658   if (N1.getOpcode() == ISD::UNDEF)  in visitADD()
1936   if (N0.getOpcode() == ISD::UNDEF)  in visitSUB()
1938   if (N1.getOpcode() == ISD::UNDEF)  in visitSUB()
2016   if (N0.getOpcode() == ISD::UNDEF || N1.getOpcode() == ISD::UNDEF)  in visitMUL()
2317   if (N0.getOpcode() == ISD::UNDEF)  in visitSDIV()
2320   if (N1.getOpcode() == ISD::UNDEF)  in visitSDIV()
2381   if (N0.getOpcode() == ISD::UNDEF)  in visitUDIV()
2384   if (N1.getOpcode() == ISD::UNDEF)  in visitUDIV()
2465   if (N0.getOpcode() == ISD::UNDEF)  in visitREM()
2468   if (N1.getOpcode() == ISD::UNDEF)  in visitREM()
2492   if (N0.getOpcode() == ISD::UNDEF || N1.getOpcode() == ISD::UNDEF)  in visitMULHS()
2528   if (N0.getOpcode() == ISD::UNDEF || N1.getOpcode() == ISD::UNDEF)  in visitMULHU()
2817       if (N->getOpcode() == ISD::XOR && ShOp.getOpcode() != ISD::UNDEF) {  in SimplifyBinOpWithSameOpcodeHands()
2838       if (N->getOpcode() == ISD::XOR && ShOp.getOpcode() != ISD::UNDEF) {  in SimplifyBinOpWithSameOpcodeHands()
2870   if (N0.getOpcode() == ISD::UNDEF || N1.getOpcode() == ISD::UNDEF)  in visitANDLike()
3580       (N0.getOpcode() == ISD::UNDEF || N1.getOpcode() == ISD::UNDEF)) {  in visitORLike()
4097   if (N0.getOpcode() == ISD::UNDEF && N1.getOpcode() == ISD::UNDEF)  in visitXOR()
4100   if (N0.getOpcode() == ISD::UNDEF)  in visitXOR()
4102   if (N1.getOpcode() == ISD::UNDEF)  in visitXOR()
4402   if (N0.getOpcode() == ISD::UNDEF)  in visitSHL()
5241     if (Cond->getOperand(i)->getOpcode() == ISD::UNDEF)  in ConvertSelectToConcatVector()
5253     if (Cond->getOperand(i)->getOpcode() == ISD::UNDEF)  in ConvertSelectToConcatVector()
5680     } else if (SCC->getOpcode() == ISD::UNDEF) {  in visitSELECT_CC()
5760     if (Op->getOpcode() == ISD::UNDEF) {  in tryToFoldExtendOfConstant()
7002   if (N0.getOpcode() == ISD::UNDEF)  in visitSIGN_EXTEND_VECTOR_INREG()
7168       if (X.getOpcode() != ISD::UNDEF) {  in visitTRUNCATE()
7583         if (Op.getOpcode() == ISD::UNDEF) continue;  in ConstantFoldBITCASTofBUILD_VECTOR()
7608     if (Op.getOpcode() == ISD::UNDEF) {  in ConstantFoldBITCASTofBUILD_VECTOR()
10217     if (Origin->getOffset().getOpcode() != ISD::UNDEF)  in isLegal()
11231   if (BasePtr.Base.getOpcode() == ISD::UNDEF)  in getStoreMergeAndAliasCandidates()
11864   if (Value.getOpcode() == ISD::UNDEF && ST->isUnindexed())  in visitSTORE()
12010   if (InVal.getOpcode() == ISD::UNDEF)  in visitINSERT_VECTOR_ELT()
12054   } else if (InVec.getOpcode() == ISD::UNDEF) {  in visitINSERT_VECTOR_ELT()
12367     if (In.getOpcode() == ISD::UNDEF) continue;  in reduceBuildVecExtToExtBuildVec()
12422             Cast.getOpcode() == ISD::UNDEF) && "Invalid cast opcode");  in reduceBuildVecExtToExtBuildVec()
12424     if (Cast.getOpcode() == ISD::UNDEF)  in reduceBuildVecExtToExtBuildVec()
12465     if (Opc == ISD::UNDEF)  in reduceBuildVecConvertToConvertBuildVec()
12511     if (In.getOpcode() == ISD::UNDEF)  in reduceBuildVecConvertToConvertBuildVec()
12554     if (Op.getOpcode() == ISD::UNDEF) continue;  in visitBUILD_VECTOR()
12592       if (Opcode == ISD::UNDEF) {  in visitBUILD_VECTOR()
12709   SDValue ScalarUndef = DAG.getNode(ISD::UNDEF, DL, SVT);  in combineConcatVectorOfScalars()
12718     else if (ISD::UNDEF == Op.getOpcode())  in combineConcatVectorOfScalars()
12739     ScalarUndef = DAG.getNode(ISD::UNDEF, DL, SVT);  in combineConcatVectorOfScalars()
12744         if (Op.getOpcode() == ISD::UNDEF)  in combineConcatVectorOfScalars()
12777     if (Op.getOpcode() == ISD::UNDEF) {  in combineConcatVectorOfExtracts()
12797     if (ExtVec.getOpcode() == ISD::UNDEF) {  in combineConcatVectorOfExtracts()
12821     if (SV0.getOpcode() == ISD::UNDEF || SV0 == ExtVec) {  in combineConcatVectorOfExtracts()
12825     } else if (SV1.getOpcode() == ISD::UNDEF || SV1 == ExtVec) {  in combineConcatVectorOfExtracts()
12853         return Op.getOpcode() == ISD::UNDEF;  in visitCONCAT_VECTORS()
12892     return ISD::UNDEF == Op.getOpcode() || ISD::BUILD_VECTOR == Op.getOpcode();  in visitCONCAT_VECTORS()
12918       if (ISD::UNDEF == Op.getOpcode())  in visitCONCAT_VECTORS()
12957     if (Op.getOpcode() == ISD::UNDEF)  in visitCONCAT_VECTORS()
13157   if (NumElemsPerConcat * 2 == NumElts && N1.getOpcode() == ISD::UNDEF &&  in partitionShuffleOfConcats()
13213   if (N0.getOpcode() == ISD::UNDEF && N1.getOpcode() == ISD::UNDEF)  in visitVECTOR_SHUFFLE()
13231   if (N0.getOpcode() == ISD::UNDEF) {  in visitVECTOR_SHUFFLE()
13248   if (N1.getOpcode() == ISD::UNDEF) {  in visitVECTOR_SHUFFLE()
13284         if (V->getOperand(i).getOpcode() != ISD::UNDEF) {  in visitVECTOR_SHUFFLE()
13324       (N1.getOpcode() == ISD::UNDEF ||  in visitVECTOR_SHUFFLE()
13374       N1.getOpcode() == ISD::UNDEF && Level < AfterLegalizeVectorOps &&  in visitVECTOR_SHUFFLE()
13460     bool IsSV1Undef = SV1.getOpcode() == ISD::UNDEF;  in visitVECTOR_SHUFFLE()
13513       if (CurrentVec.getOpcode() == ISD::UNDEF) {  in visitVECTOR_SHUFFLE()
13693       if (Elt.getOpcode() == ISD::UNDEF) {  in XformToShuffleWithZero()
13772       LHS.getOperand(1).getOpcode() == ISD::UNDEF &&  in SimplifyVBinOp()
13773       RHS.getOperand(1).getOpcode() == ISD::UNDEF) {  in SimplifyVBinOp()
14732   if (BasePtr.Base.getOpcode() == ISD::UNDEF)  in findBetterNeighborChains()