http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52511
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-03-06 16:02:07 UTC --- > * Is there some codegen problem leading to the factor 2 slowdown from sun4u > to sun4v? UltraSPARC T1/T2 are just trounced by UltraSPARC III+/IV when it comes to single threaded performances.
