http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50506
--- Comment #3 from Rafał Mużyło <galtgendo at o2 dot pl> 2011-09-24 13:17:59 UTC --- OK, that's a bit surprising, -fipa-cp does help for attachment from comment 1, but not for my final reduction - removing the attribute still works there, though.