[Bug tree-optimization/48921] Value numbering takes infinite time on nested infinite loop

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48921

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-09 
15:23:30 UTC ---
I think this is a dup of PR48822.  Can you check if the bug still occurs
with a more current trunk?  I can't reproduce it at least.