SMALL_REGISTER_CLASSES

[Jeffrey A Law]

  In message < 199801260522.QAA01623@discus.anu.edu.au >you write:
  > > This is a separate and distinct problem from whether or not a machine
  > > description should mention registers explicitly in RTL.
  > 
  > I mean,  you still have to define SMALL_REGISTER_CLASSES (or equivalent)
  > if you have small register classes, whether or not you mention
  > registers in those classes in the RTL.
Not necessarily.

In many cases using these registers by users is just plain not going to work,
so there's no sense in crippling a machine description by defining
SMALL_REGISTER_CLASSES just because a user might use one of these registers
in an asm.



jeff