Reducing RTL allocations

[Alexandre Oliva]

On Jun  7, 2002, law@redhat.com wrote:

> So what I've done is initialized regno_reg_rtx for hard registers -- you
> can use it to get a hard register of mode reg_raw_mode[regno] as long as
> you don't mind it being shared.

Erhm...  It appears to me that using shared hard reg rtx is not
appropriate in reload, since regrename modifies regs in place.  What
am I missing?

-- 
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}
Free Software Evangelist                Professional serial bug killer