1512         SDValue Op0 = N0;  in SimplifySetCC()  local
1513         if (Op0.getOpcode() == ISD::TRUNCATE)  in SimplifySetCC()
1514           Op0 = Op0.getOperand(0);  in SimplifySetCC()
1516         if ((Op0.getOpcode() == ISD::XOR) &&  in SimplifySetCC()
1517             Op0.getOperand(0).getOpcode() == ISD::SETCC &&  in SimplifySetCC()
1518             Op0.getOperand(1).getOpcode() == ISD::SETCC) {  in SimplifySetCC()
1521           return DAG.getSetCC(dl, VT, Op0.getOperand(0), Op0.getOperand(1),  in SimplifySetCC()
1524         if (Op0.getOpcode() == ISD::AND &&  in SimplifySetCC()
1525             isa<ConstantSDNode>(Op0.getOperand(1)) &&  in SimplifySetCC()
1526             cast<ConstantSDNode>(Op0.getOperand(1))->getAPIntValue() == 1) {  in SimplifySetCC()
1528           if (Op0.getValueType().bitsGT(VT))  in SimplifySetCC()
1529             Op0 = DAG.getNode(ISD::AND, dl, VT,  in SimplifySetCC()
1530                           DAG.getNode(ISD::TRUNCATE, dl, VT, Op0.getOperand(0)),  in SimplifySetCC()
1532           else if (Op0.getValueType().bitsLT(VT))  in SimplifySetCC()
1533             Op0 = DAG.getNode(ISD::AND, dl, VT,  in SimplifySetCC()
1534                         DAG.getNode(ISD::ANY_EXTEND, dl, VT, Op0.getOperand(0)),  in SimplifySetCC()
1537           return DAG.getSetCC(dl, VT, Op0,  in SimplifySetCC()
1538                               DAG.getConstant(0, Op0.getValueType()),  in SimplifySetCC()
1541         if (Op0.getOpcode() == ISD::AssertZext &&  in SimplifySetCC()
1542             cast<VTSDNode>(Op0.getOperand(1))->getVT() == MVT::i1)  in SimplifySetCC()
1543           return DAG.getSetCC(dl, VT, Op0,  in SimplifySetCC()
1544                               DAG.getConstant(0, Op0.getValueType()),  in SimplifySetCC()