[Bug middle-end/48666] [4.6/4.7 Regression] -Warray-bounds doesn't trigger anymore for simple case

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48666

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |4.3.4, 4.4.5
           Keywords|                            |diagnostic
   Last reconfirmed|                            |2011.06.12 13:08:46
          Component|c                           |middle-end
     Ever Confirmed|0                           |1
            Summary|[4.5.2/4.6 regression]      |[4.6/4.7 Regression]
                   |-Warray-bounds doesn't      |-Warray-bounds doesn't
                   |trigger anymore for simple  |trigger anymore for simple
                   |case                        |case
   Target Milestone|4.5.4                       |4.6.1
      Known to fail|                            |4.6.0, 4.7.0

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-12 
13:08:46 UTC ---
Array bound warnings with unions are quite fragile.

Warns with 4.5.3 as shipped by Debian, so confirmed only for 4.6.