1455       Op.getValueType().isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND;  in PromoteOperand()
1907   case ISD::SIGN_EXTEND:        return visitSIGN_EXTEND(N);  in visit()
2039     case ISD::SIGN_EXTEND:  in combine()
2690   if (N0.getOpcode() == ISD::SIGN_EXTEND && N0.hasOneUse() &&  in visitADDLike()
3191   if (N0.getOpcode() == ISD::SIGN_EXTEND &&  in visitADDLikeCommutative()
4025     SDValue SExt = DAG.getNode(ISD::SIGN_EXTEND, DL, VT, N1.getOperand(0));  in visitSUB()
5103       N0 = DAG.getNode(ISD::SIGN_EXTEND, DL, NewVT, N0);  in visitMULHS()
5104       N1 = DAG.getNode(ISD::SIGN_EXTEND, DL, NewVT, N1);  in visitMULHS()
5245     return DAG.getNode(ISD::SIGN_EXTEND, DL, VT, AvgS);  in visitAVG()
5383       SDValue Lo = DAG.getNode(ISD::SIGN_EXTEND, DL, NewVT, N0);  in visitSMUL_LOHI()
5384       SDValue Hi = DAG.getNode(ISD::SIGN_EXTEND, DL, NewVT, N1);  in visitSMUL_LOHI()
7269       if (SubRHS.getOpcode() == ISD::SIGN_EXTEND &&  in visitAND()
7324     if (LHS->getOpcode() != ISD::SIGN_EXTEND)  in visitAND()
8592   if ((LHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND ||  in MatchRotate()
8596       (RHSShiftAmt.getOpcode() == ISD::SIGN_EXTEND ||  in MatchRotate()
8740   case ISD::SIGN_EXTEND:  in calculateByteProvider()
8854   case ISD::SIGN_EXTEND:  in stripTruncAndExt()
9947        N0.getOpcode() == ISD::SIGN_EXTEND) &&  in visitSHL()
10099   if (N0.getOpcode() == ISD::SIGN_EXTEND &&  in visitSHL()
10193   bool IsSignExt = LeftOp.getOpcode() == ISD::SIGN_EXTEND;  in combineShiftToMULH()
10405           TLI.isOperationLegalOrCustom(ISD::SIGN_EXTEND, TruncVT) &&  in visitSRA()
10413         return DAG.getNode(ISD::SIGN_EXTEND, DL,  in visitSRA()
10948       (Opc0 != ISD::ZERO_EXTEND && Opc0 != ISD::SIGN_EXTEND &&  in foldABSToABD()
11883   if (Index.getOpcode() == ISD::SIGN_EXTEND &&  in refineIndexType()
12249     auto ExtendOpcode = AllAddOne ? ISD::ZERO_EXTEND : ISD::SIGN_EXTEND;  in foldVSelectOfConstants()
12386         auto ExtOpcode = IsSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND;  in visitVSELECT()
12808   if ((LoadExt == ISD::SEXTLOAD && ExtOpcode != ISD::SIGN_EXTEND) ||  in isCompatibleLoad()
12827   assert((Opcode == ISD::SIGN_EXTEND || Opcode == ISD::ZERO_EXTEND ||  in tryToFoldExtendSelectLoad()
12841   if (Opcode == ISD::SIGN_EXTEND)  in tryToFoldExtendSelectLoad()
12902         FoldOpc = ISD::SIGN_EXTEND;  in tryToFoldExtendOfConstant()
12937     if (Opcode == ISD::SIGN_EXTEND || Opcode == ISD::SIGN_EXTEND_VECTOR_INREG)  in tryToFoldExtendOfConstant()
13036   assert((N->getOpcode() == ISD::SIGN_EXTEND ||  in CombineExtLoad()
13073       N->getOpcode() == ISD::SIGN_EXTEND ? ISD::SEXTLOAD : ISD::ZEXTLOAD;  in CombineExtLoad()
13211   assert((CastOpcode == ISD::SIGN_EXTEND || CastOpcode == ISD::ZERO_EXTEND ||  in matchVSelectOpSizesWithSetCC()
13302           ExtOpc = ISD::SIGN_EXTEND;  in tryToFoldExtOfLoad()
13406   assert((N->getOpcode() == ISD::SIGN_EXTEND ||  in foldExtendedSignBitTest()
13433         N->getOpcode() == ISD::SIGN_EXTEND ? ISD::SRA : ISD::SRL;  in foldExtendedSignBitTest()
13488       unsigned ExtOpcode = IsSignedCmp ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND;  in foldSextSetcc()
13583   if (N0.getOpcode() == ISD::SIGN_EXTEND || N0.getOpcode() == ISD::ANY_EXTEND)  in visitSIGN_EXTEND()
13584     return DAG.getNode(ISD::SIGN_EXTEND, DL, VT, N0.getOperand(0));  in visitSIGN_EXTEND()
13600       return DAG.getNode(ISD::SIGN_EXTEND, DL, VT, T);  in visitSIGN_EXTEND()
13634         return DAG.getNode(ISD::SIGN_EXTEND, DL, VT, Op);  in visitSIGN_EXTEND()
13657                              ISD::SEXTLOAD, ISD::SIGN_EXTEND))  in visitSIGN_EXTEND()
13662                                    ISD::SEXTLOAD, ISD::SIGN_EXTEND))  in visitSIGN_EXTEND()
13692                                              ISD::SIGN_EXTEND, SetCCs, TLI);  in visitSIGN_EXTEND()
13701         ExtendSetCCUses(SetCCs, N0.getOperand(0), ExtLoad, ISD::SIGN_EXTEND);  in visitSIGN_EXTEND()
13776       return DAG.getNode(ISD::SIGN_EXTEND, DL, VT, NewXor);  in visitSIGN_EXTEND()
13834       DAG.getNode(ISD::SIGN_EXTEND, SDLoc(Abs), LegalVT, Abs.getOperand(0));  in widenAbs()
13925           return DAG.getNode(ISD::SIGN_EXTEND, DL, VT, Op);  in visitZERO_EXTEND()
14159     SDNode *CSENode = DAG.getNodeIfExists(ISD::SIGN_EXTEND, N->getVTList(), N0);  in visitZERO_EXTEND()
14183       N0.getOpcode() == ISD::SIGN_EXTEND) {  in visitANY_EXTEND()
14700   if (N0.getOpcode() == ISD::SIGN_EXTEND || N0.getOpcode() == ISD::ANY_EXTEND) {  in visitSIGN_EXTEND_INREG()
14705         (!LegalOperations || TLI.isOperationLegal(ISD::SIGN_EXTEND, VT)))  in visitSIGN_EXTEND_INREG()
14706       return DAG.getNode(ISD::SIGN_EXTEND, SDLoc(N), VT, N00);  in visitSIGN_EXTEND_INREG()
14732         (!LegalOperations || TLI.isOperationLegal(ISD::SIGN_EXTEND, VT)))  in visitSIGN_EXTEND_INREG()
14733       return DAG.getNode(ISD::SIGN_EXTEND, SDLoc(N), VT, N00);  in visitSIGN_EXTEND_INREG()
14856          TLI.isOperationLegal(ISD::SIGN_EXTEND, InnerExtVT))) {  in visitSIGN_EXTEND_INREG()
14858           DAG.getNode(ISD::SIGN_EXTEND, SDLoc(N), InnerExtVT, Extendee);  in visitSIGN_EXTEND_INREG()
14946       N0.getOpcode() == ISD::SIGN_EXTEND ||  in visitTRUNCATE()
15188     if (N00.getOpcode() == ISD::SIGN_EXTEND ||  in visitTRUNCATE()
15532         X = DAG.getNode(ISD::SIGN_EXTEND, SDLoc(N), VT, X);  in visitBITCAST()
17839       unsigned ExtOp = IsInputSigned && IsOutputSigned ? ISD::SIGN_EXTEND  in FoldIntToFPToInt()
18872       Val = DAG.getNode(ISD::SIGN_EXTEND, SDLoc(LD), LDType, Val);  in extendLoadedValueToExtension()
21496          Value.getOpcode() == ISD::SIGN_EXTEND ||  in visitSTORE()
22005       Scalar.getOpcode() == ISD::SIGN_EXTEND ||  in combineInsertEltToLoad()