[Bug middle-end/52691] [4.7/4.8 Regression] va_start to builtin_next_arg optimization lost

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52691

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
            Version|tree-ssa                    |4.7.0
   Last reconfirmed|                            |2012-03-26
          Component|c                           |middle-end
                 CC|                            |meissner at gcc dot gnu.org
     Ever Confirmed|0                           |1
            Summary|va_start to                 |[4.7/4.8 Regression]
                   |builtin_next_arg            |va_start to
                   |optimization lost           |builtin_next_arg
                   |                            |optimization lost
   Target Milestone|---                         |4.7.1

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-03-26 
08:23:05 UTC ---
Confirmed.  Michael, can you please fix trunk and the 4.7 branch?  Thx.