[Bug tree-optimization/47228] [4.6 Regression] wrong code with loop

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47228

--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-01-26 
20:28:37 UTC ---
Created attachment 23137
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23137
untested patch