81   unsigned toDREG(unsigned Reg, unsigned From = AVR::sub_lo) {  in toDREG()
82     MCRegisterClass const *Class = &AVRMCRegisterClasses[AVR::DREGSRegClassID];  in toDREG()
357   if (RegNum == AVR::NoRegister) {  in parseRegisterName()
360   if (RegNum == AVR::NoRegister) {  in parseRegisterName()
370   if (RegNum == AVR::NoRegister)  in parseRegisterName()
377   int RegNum = AVR::NoRegister;  in parseRegister()
391       if (RegNum == AVR::NoRegister && RestoreOnFailure) {  in parseRegister()
405   if (RegNo == AVR::NoRegister)  in tryParseRegisterOperand()
409   if (AVR::R0 <= RegNo && RegNo <= AVR::R15 &&  in tryParseRegisterOperand()
410       STI.hasFeature(AVR::FeatureTinyEncoding))  in tryParseRegisterOperand()
583     if (RegNo == AVR::NoRegister)  in parseMemriOperand()
609   return (RegNo == AVR::NoRegister);  in ParseRegister()
619   if (RegNo == AVR::NoRegister)  in tryParseRegister()
743           STI.hasFeature(AVR::FeatureTinyEncoding))  in validateTargetOperandClass()
749       if (RegNum != AVR::NoRegister) {  in validateTargetOperandClass()
765       if (correspondingDREG != AVR::NoRegister) {  in validateTargetOperandClass()