http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54622
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-09-19 01:29:09 UTC --- (In reply to comment #2) > Effective targets vect_unpack and vect_pack_trunc both require little endian > for ARM, which is why I thought that perhaps some of the others do as well. Yes but I think it is wrong to do that in the back-end.