[Bug c/46186] Clang creates code running 1600 times faster than gcc's

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46186

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2010.10.26 16:59:00
                 CC|                            |spop at gcc dot gnu.org
     Ever Confirmed|0                           |1

--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-10-26 16:59:00 UTC ---
For sum += 2 or sum += b sccp handles this, so I wonder whether it couldn't
handle even the sum += a case.  Sebastian?