http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55177
--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2013-03-09 00:05:46 UTC --- > Eric, > I have some patches to improve __builtin_bswap* that I can line up for 4.9. > Do you mind if I take this bug? They are located on the pinskia/bytewiseunop > branch in git: > http://gcc.gnu.org/git/?p=gcc.git;a=shortlog;h=refs/heads/pinskia/bytewiseunop I have something too (albeit preliminary), but go ahead.