fix ppc warnings

[Jan Hubicka]

> On Monday 30 July 2001 18:35, Geoff Keating wrote:
> > > Sun Jul 29 22:59:58 CEST 2001  Jan Hubicka  <jh@suse.cz>
> > > 	* rs6000.md (define_splits): Kill unused constraints.
> >
> > This is OK.
> 
> Just out of interest, why fix various CLOBBER and COMPARE constraints? 
In define_split?
In case genrecog does not warn, it is IMO genrecog problem, as they
are equally useless.

If I've removed constraints in define_insn, I did typo I apologize for.
Can you show me hunk you are interested in?

Honza
> genrecog doesn't warn about them, is this a genrecog problem?
> 
> Franz.