Lines Matching refs:IsUndef
800 if (UseMO.isUndef())
1090 if (Op.getSubReg() == 0 || Op.isUndef())
1135 if (DstOperand.getSubReg() && !DstOperand.isUndef())
1462 if (MO.isDef() /*|| MO.isUndef()*/)
1504 bool IsUndef = true;
1509 IsUndef = false;
1513 if (IsUndef) {
1534 if (SubReg == 0 || MO.isUndef())
2780 if (MO.getSubReg() != 0 && MO.isUndef() && !EraseImpDef)
3280 if (Copy->getOperand(1).isUndef())
