29   bool is_Register();

    29 inline bool is_Register() {

    30   Register as_Register();

    30   return (unsigned int)value() < (unsigned int)ConcreteRegisterImpl::max_gpr;

    31 }

    32   bool is_FloatRegister();

    33 inline bool is_FloatRegister() {

    33   FloatRegister as_FloatRegister();

    34   return value() >= ConcreteRegisterImpl::max_gpr &&

    35          value() < ConcreteRegisterImpl::max_fpr;

    36 }

    37 

    38 inline Register as_Register() {

    39   assert(is_Register() && is_even(value()), "even-aligned GPR name");

    40   return ::as_Register(value()>>1);

    41 }

    42 

    43 inline FloatRegister as_FloatRegister() {

    44   assert(is_FloatRegister() && is_even(value()), "must be");

    45   return ::as_FloatRegister((value() - ConcreteRegisterImpl::max_gpr) >> 1);

    46 }

    47 

    48 inline bool is_concrete() {

    49   assert(is_reg(), "must be");

    50   return is_even(value());

    51 }