http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56504
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> 2013-03-04 10:53:07 UTC --- (In reply to comment #0) > Unfortunately, no further documentation is available, telling whether, e.g., > src and dst may be the same or not. AMD told me that "src" and "dst" are permitted to be the same.