[Bug c++/49751] Incorrect optimization related to smallest int64_t value.

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49751

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-07-14 
20:17:23 UTC ---
  if (a < 0)
  {
    a = -a;
  }

-INT_MIN invokes undefined behavior as signed integer overflow is undefined.