[Bug tree-optimization/54494] [4.7/4.8 Regression] Missing store to volatile

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54494

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-09-05 
18:23:56 UTC ---
Created attachment 28134
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28134
Patch which fixes the problem

Here is the fix.