76   if (Vec.getOpcode() == ISD::UNDEF)  in Extract128BitVector()
104   if (Vec.getOpcode() == ISD::UNDEF)  in Insert128BitVector()
617     setOperationAction(ISD::UNDEF,     MVT::f64, Expand);  in X86TargetLowering()
644     setOperationAction(ISD::UNDEF,     MVT::f64, Expand);  in X86TargetLowering()
645     setOperationAction(ISD::UNDEF,     MVT::f32, Expand);  in X86TargetLowering()
670     setOperationAction(ISD::UNDEF,     MVT::f80, Expand);  in X86TargetLowering()
3531   SDValue UndefNode = DAG.getNode(ISD::UNDEF, dl, VT);  in Compact8x32ShuffleNode()
4190     case ISD::UNDEF:  in WillBeConstantPoolLoad()
4258       if (Opc == ISD::UNDEF || ISD::isBuildVectorAllZeros(V2.getNode()))  in isZeroShuffle()
4265       if (Opc == ISD::UNDEF || ISD::isBuildVectorAllZeros(V1.getNode()))  in isZeroShuffle()
4644          (Elt.getOpcode() == ISD::UNDEF || X86::isZeroNode(Elt))))  in getNumOfConsecutiveZeros()
4957         (Elt.getOpcode() != ISD::UNDEF && !ISD::isNON_EXTLoad(Elt.getNode())))  in EltsFromConsecutiveLoads()
4960       if (Elt.getNode()->getOpcode() == ISD::UNDEF)  in EltsFromConsecutiveLoads()
4966     if (Elt.getOpcode() == ISD::UNDEF)  in EltsFromConsecutiveLoads()
5175     if (Opcode == ISD::UNDEF) {  in LowerVectorFpExtend()
5273     if (Elt.getOpcode() == ISD::UNDEF)  in LowerBUILD_VECTOR()
5511       if (Op.getOperand(0).getOpcode() != ISD::UNDEF)  in LowerBUILD_VECTOR()
5517         if (Op.getOperand(i).getOpcode() == ISD::UNDEF) continue;  in LowerBUILD_VECTOR()
5528       if (Op.getOperand(i).getOpcode() != ISD::UNDEF)  in LowerBUILD_VECTOR()
5546         if (V[i+EltStride].getOpcode() == ISD::UNDEF &&  in LowerBUILD_VECTOR()
5941     if (V2.getOpcode() == ISD::UNDEF ||  in LowerVECTOR_SHUFFLEv16i8()
6039   bool V2IsUndef = V2.getOpcode() == ISD::UNDEF;  in LowerVECTOR_SHUFFLEv32i8()
6412       V.getNumOperands() == 2 && V.getOperand(1).getOpcode() == ISD::UNDEF)  in MayFoldVectorLoad()
6476   if (V2.getOpcode() == ISD::UNDEF)  in getMOVHighToLow()
6611   bool V1IsUndef = V1.getOpcode() == ISD::UNDEF;  in LowerVECTOR_SHUFFLE()
6612   bool V2IsUndef = V2.getOpcode() == ISD::UNDEF;  in LowerVECTOR_SHUFFLE()
13410         V2.getOperand(1).getOpcode() != ISD::UNDEF ||  in PerformShuffleCombine256()
13411         V1.getOperand(1).getOpcode() != ISD::UNDEF)  in PerformShuffleCombine256()
14569       if (Arg.getOpcode() == ISD::UNDEF) continue;  in PerformShiftCombine()
14580       if (Arg.getOpcode() == ISD::UNDEF) continue;  in PerformShiftCombine()
14593         if (Arg.getOpcode() == ISD::UNDEF) continue;  in PerformShiftCombine()
14762         V1.getOperand(0).getOpcode() == ISD::UNDEF &&  in CanFoldXORWithAllOnes()
15467     if (LHS.getOperand(0).getOpcode() != ISD::UNDEF)  in isHorizontalBinOp()
15469     if (LHS.getOperand(1).getOpcode() != ISD::UNDEF)  in isHorizontalBinOp()
15474     if (LHS.getOpcode() != ISD::UNDEF)  in isHorizontalBinOp()
15485     if (RHS.getOperand(0).getOpcode() != ISD::UNDEF)  in isHorizontalBinOp()
15487     if (RHS.getOperand(1).getOpcode() != ISD::UNDEF)  in isHorizontalBinOp()
15492     if (RHS.getOpcode() != ISD::UNDEF)  in isHorizontalBinOp()