http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60410
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Yep. r189974. Looks like the target is confused by building a -fshort-double V2DF with using double_type_node. Probably broken also on i?86, just not triggered. OTOH, -fshort-double is a red herring ...