Pre_dec and Post_inc insns

[Alexandre Oliva]

On Jul  1, 2003, Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> wrote:

> there actually is some horrible condition in cse to prevent this, with
> the effect that chains of additions sometimes are not csed.

Yes, there is indeed (I forgot to mention it), but the condition is
wrong.

> IMO the right solution is to make autoinc creating pass smarter

My thought too.  Unfortunately it would duplicate some effort from
reload move2add.

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