[Bug c++/49279] Optimization incorrectly presuming constant variable inside loop in g++ 4.5 and 4.6 with -O2 and -O3 for x86_64 targets

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49279

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.06.04 16:37:22
                 CC|                            |rguenth at gcc dot gnu.org
   Target Milestone|---                         |4.5.4
     Ever Confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-06-04 16:37:22 
UTC ---
It is caused by revision 155360:

http://gcc.gnu.org/ml/gcc-cvs/2009-12/msg00504.html