[Bug target/52301] avr-gcc 4.6.2 produces NOP loop in simple while statement

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52301

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

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

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-22 04:33:50 UTC ---
This is invalid as GCC has no way to know that stat can change.  Mark stat as
volatile and then GCC will know it can change.