[Bug c++/52833] -O2 optimizes loop to infinite when loop invariant based on arithmetic overflow

[gwpublic at wp dot pl]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52833

--- Comment #3 from Grzegorz Wierzowiecki <gwpublic at wp dot pl> 2012-04-02 
10:11:02 UTC ---
Created attachment 27066
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27066
compiler flags enabled by -O1