http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50135
--- Comment #3 from Jan Hubicka <hubicka at ucw dot cz> 2011-08-21 12:01:20 UTC --- > I bet we have a duplicate report for not using the x86 loop instruction. Well, we used to generate it until we concluded it is pointless... Honza
