[Bug tree-optimization/20803] Pseudo-infinite recursion in ivopts

[pinskia at gcc dot gnu dot org]

-- 
Bug 20803 depends on bug 20742, which changed state.

Bug 20742 Summary: [4.0 Regression] Hang in tree_ssa_iv_optimize_loop
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20742

           What    |Old Value                   |New Value
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20803