[Bug tree-optimization/57702] Reassoc missed optimizations

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57702

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-06-25
     Ever confirmed|0                           |1

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yeah, well.  reassoc needs an audit on places where we may not associate
blindly for TYPE_OVERFLOW_UNDEFINED/TRAPS.  Its general machinery is just
not prepared for such limitation (for example ops list sorting cannot
be done in general, linearization cannot be done in general, etc.)