http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52272
--- Comment #11 from Igor Zamyatin <izamyatin at gmail dot com> 2012-04-19 13:09:25 UTC --- Another version of the experimental patch is here - http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52868 It fixes bwaves regression on x86 and might not trigger performance on other platforms