http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51743
--- Comment #2 from Richard Henderson <rth at gcc dot gnu.org> 2012-01-03 20:11:43 UTC --- Uh... can you even force ia64-linux to run in big-endian mode? Just because you said -mbig-endian doesn't mean it is. I don't see anything in the linux kernel that allows per-process endian switching. Do these same failures appear for ia64-hpux?