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Lines Matching refs:IsUndef

797       Use |= !MO.isUndef();
798     else if (MO.getSubReg() && !MO.isUndef())
1571     if (!MO.isReg() || !MO.isUse() || MO.isUndef())
1700 void MachineInstr::setRegisterDefReadUndef(unsigned Reg, bool IsUndef) {
1704     MO.setIsUndef(IsUndef);