162   while (i != e && N->getOperand(i).isUndef())  in isBuildVectorAllOnes()
191     if (N->getOperand(i) != NotZero && !N->getOperand(i).isUndef())  in isBuildVectorAllOnes()
205     if (Op.isUndef())  in isBuildVectorAllZeros()
238     if (Op.isUndef())  in isBuildVectorOfConstantSDNodes()
251     if (Op.isUndef())  in isBuildVectorOfConstantFPSDNodes()
267     if (!Op.isUndef())  in allOperandsUndef()
286     if (AllowUndefs && Op.getOperand(i).isUndef()) {  in matchUnaryPredicate()
320     bool LHSUndef = AllowUndefs && LHSOp.isUndef();  in matchBinaryPredicate()
321     bool RHSUndef = AllowUndefs && RHSOp.isUndef();  in matchBinaryPredicate()
1554   if (N1.isUndef() && N2.isUndef())  in getVectorShuffle()
1575   if (N1.isUndef())  in getVectorShuffle()
1611   bool N2Undef = N2.isUndef();  in getVectorShuffle()
1631   N2Undef = N2.isUndef();  in getVectorShuffle()
1633   if (N1.isUndef() && N2Undef)  in getVectorShuffle()
1659       if (Splat && Splat.isUndef())  in getVectorShuffle()
2170       if (Op.isUndef()) {  in isSplatValue()
3993   if (llvm::all_of(Ops, [](SDValue Op) { return Op.isUndef(); }))  in FoldBUILD_VECTOR()
4033   if (llvm::all_of(Ops, [](SDValue Op) { return Op.isUndef(); }))  in FoldCONCAT_VECTORS()
4043     if (Op.isUndef())  in FoldCONCAT_VECTORS()
4288     if (Operand.isUndef())  in getNode()
4548 bool SelectionDAG::isUndef(unsigned Opcode, ArrayRef<SDValue> Ops) {  in isUndef()  function in SelectionDAG
4558     if (Divisor.isUndef() || isNullConstant(Divisor))  in isUndef()
4563                         [](SDValue V) { return V.isUndef() ||  in isUndef()
4582   if (isUndef(Opcode, {SDValue(Cst1, 0), SDValue(Cst2, 0)}))  in FoldConstantArithmetic()
4605   if (!BV1 && !Cst1->isUndef())  in FoldConstantArithmetic()
4608   if (!BV2 && !Cst2->isUndef())  in FoldConstantArithmetic()
4645     if (!ScalarResult.isUndef() && ScalarResult.getOpcode() != ISD::Constant &&  in FoldConstantArithmetic()
4672   if (isUndef(Opcode, Ops))  in FoldConstantVectorArithmetic()
4688     return (Op.isUndef()) || (Op.getOpcode() == ISD::CONDCODE) ||  in FoldConstantVectorArithmetic()
4721         if (Op.isUndef())  in FoldConstantVectorArithmetic()
4747     if (!ScalarResult.isUndef() && ScalarResult.getOpcode() != ISD::Constant &&  in FoldConstantVectorArithmetic()
4953         if (Op.isUndef()) {  in getNode()
4971     if (N1.isUndef())  in getNode()
5077       if (N1.isUndef())  in getNode()
5165     if (N1.isUndef() && N2.isUndef())  in getNode()
5167     if (N1.isUndef() || N2.isUndef())  in getNode()
5172   if (N1.isUndef()) {  in getNode()
5193   if (N2.isUndef()) {  in getNode()
5196       if (N1.isUndef())  in getNode()
5417   assert(!Value.isUndef());  in getMemsetValue()
5668   if (Src.isUndef())  in getMemcpyLoadsAndStores()
5854   if (Src.isUndef())  in getMemmoveLoadsAndStores()
5959   if (Src.isUndef())  in getMemsetStores()
6594   if (OffsetOp.isUndef())  in InferPointerInfo()
6646   assert((Indexed || Offset.isUndef()) && "Unindexed load with an offset!");  in getLoad()
6713   assert(LD->getOffset().isUndef() && "Load is already a indexed load!");  in getIndexedLoad()
6846   assert(ST->getOffset().isUndef() && "Store is already a indexed store!");  in getIndexedStore()
7010   if (Cond.isUndef())  in simplifySelect()
7012   if (T.isUndef())  in simplifySelect()
7014   if (F.isUndef())  in simplifySelect()
7038   if (X.isUndef())  in simplifyShift()
7041   if (Y.isUndef())  in simplifyShift()
9124     if (OpVal.isUndef())  in isConstantSplat()
9169     if (Op.isUndef()) {  in getSplatValue()
9180     assert(getOperand(0).isUndef() &&  in getSplatValue()