[Bug tree-optimization/45967] [4.5 Regression] gcc-4.5.x optimizes code with side-effects away

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45967

--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-02 
15:54:36 UTC ---
Created attachment 23515
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23515
patch for the 4.5 branch