[Bug c++/15440] mainline C++ code generation bug at -O2

[pinskia at gcc dot gnu dot org]

-- 
Bug 15440 depends on bug 14029, which changed state.

Bug 14029 Summary: [3.5 Regression] Miscompilation of unrolled loop due to Iterator::base having an aliasing problem
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14029

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15440