http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48806
--- Comment #4 from Kazumoto Kojima <kkojima at gcc dot gnu.org> 2012-03-06 00:26:30 UTC --- It looks that the testcase came from a FreeBSD kernel code: http://www.leidinger.net/FreeBSD/dox/net80211/html/d7/d8d/ieee80211__crypto__ccmp_8c_source.html gcc.c-torture/execute/pr20527-1.c is an example of gcc testcase which includes a BSD-like license notice, though I'm not sure about copyright issues. The gcc list would be more appropriate for the questions about copyrights.