http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53535
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-05-31 04:32:00 UTC --- >alignment of data should not make a difference for emitted code Unless the loading of unalignment makes it much slower. I thinking where two aligned half loads are better than one unaligned word load. I think there are targets like that.