765     setOperationAction(ISD::ZERO_EXTEND,  (MVT::SimpleValueType)VT, Expand);  in X86TargetLowering()
1225   setTargetDAGCombine(ISD::ZERO_EXTEND);  in X86TargetLowering()
1619   if (Subtarget->is64Bit() && VT == MVT::i1 && ExtendKind == ISD::ZERO_EXTEND)  in getTypeForExtArgOrReturn()
2232       Arg = DAG.getNode(ISD::ZERO_EXTEND, dl, RegVT, Arg);  in LowerCall()
4672         LastElt = DAG.getNode(ISD::ZERO_EXTEND, dl,  in LowerBuildVectorv16i8()
4676         ThisElt = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i16, Op.getOperand(i));  in LowerBuildVectorv16i8()
5136         Item = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i32, Item);  in LowerBUILD_VECTOR()
9338     return DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i32, SetCC);  in LowerINTRINSIC_WO_CHAIN()
9666     return DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i32, SetCC);  in LowerINTRINSIC_WO_CHAIN()
10065                       ISD::TRUNCATE : ISD::ZERO_EXTEND), DL, VT, RetVal);  in LowerFLT_ROUNDS_()
10078     Op = DAG.getNode(ISD::ZERO_EXTEND, dl, OpVT, Op);  in LowerCTLZ()
10113     Op = DAG.getNode(ISD::ZERO_EXTEND, dl, OpVT, Op);  in LowerCTLZ_ZERO_UNDEF()
13222         Extract->use_begin()->getOpcode() != ISD::ZERO_EXTEND)  in PerformEXTRACT_VECTOR_ELTCombine()
13460           Cond = DAG.getNode(ISD::ZERO_EXTEND, DL, LHS.getValueType(), Cond);  in PerformSELECTCombine()
13474           Cond = DAG.getNode(ISD::ZERO_EXTEND, DL,  in PerformSELECTCombine()
13509             Cond = DAG.getNode(ISD::ZERO_EXTEND, DL, FalseC->getValueType(0),  in PerformSELECTCombine()
13624         Cond = DAG.getNode(ISD::ZERO_EXTEND, DL, TrueC->getValueType(0), Cond);  in PerformCMOVCombine()
13641         Cond = DAG.getNode(ISD::ZERO_EXTEND, DL,  in PerformCMOVCombine()
13678           Cond = DAG.getNode(ISD::ZERO_EXTEND, DL, FalseC->getValueType(0),  in PerformCMOVCombine()
13777           N00.getOpcode() == ISD::ZERO_EXTEND) &&  in PerformSHLCombine()
13891     BaseShAmt = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i32, BaseShAmt);  in PerformShiftCombine()
13973         case ISD::ZERO_EXTEND:  in CMPEQCombine()
14999   if (Ext.getOpcode() != ISD::ZERO_EXTEND || !Ext.hasOneUse())  in OptimizeConditionalInDecrement()
15109   case ISD::ZERO_EXTEND:    return PerformZExtCombine(N, DAG, Subtarget);  in PerformDAGCombine()
15147   case ISD::ZERO_EXTEND:  in isTypeDesirableForOp()
15191   case ISD::ZERO_EXTEND:  in IsDesirableToPromoteOp()