how to change register allocation order

[Alexandre Oliva]

On May 26, 2001, "zhang tao" <warmice@sina.com> wrote:

> It's strange why the MACRO REG_ALLOC_ORDER is no effect at all.

Give an example of a situation in which it has no effect.  Include rtl
dumps before and after local and global register allocation.

> In arm, arg registers are r0-r3, while in our CPU they are r25-r28.
> I changed the MACRO FUNCTION_ARG_REGNO_P (REGNO), it's no effect
> either!!

See the documentation of FUNCTION_VALUE.  

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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