http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59777
--- Comment #1 from John David Anglin <danglin at gcc dot gnu.org> --- Created attachment 31814 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31814&action=edit Output from expand. One can see in .expand that TLS arguments to printf are not being precomputed causing wrong code.