------- Comment #8 from rguenth at gcc dot gnu dot org 2010-05-06 13:55 -------
(In reply to comment #7)
> > Just make eax both input and output.
> it's not optimal. gcc will try to preserve new eax value. So it will not use
> eax register in next instructions. If eax is really need, it will save it in
> esi, edi or so on - it's redundant.
Not if you make the output unused by not using it.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43998
