https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108922
--- Comment #14 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Jan Kratochvil from comment #13) > The question is whether gcc can rely on the undocumented Intel behavior as > described in Comment 7. glibc already relies on it anyway. I don't think this is true, please see Comment #11.