Patch: darwin speed tweak

[Geoff Keating]

Dale Johannesen <dalej@apple.com> writes:

> R2 is a volatile reg on Darwin, and should get higher priority in
> register allocation.  (Pointed out by Sam Figueroa.)  Bootstrapped
> and tested.
> 
> 2003-03-21  Dale Johannesen  <dalej@apple.com>
> 
>          * config/rs6000/rs6000.h (REG_ALLOC_ORDER): Increase
>          priority for R2 on Darwin.

This is OK.

-- 
- Geoffrey Keating <geoffk@geoffk.org>