http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56454
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-02-26 07:25:40 UTC --- (In reply to comment #2) > Long story short: > we needed to unify the names for asan/tsan/msan attributes. > Now they are called > no_sanitize_address > no_sanitize_thread > no_sanitize_memory I think it was change to change the name of them considering the more verbose names seem better than no_sanitize_address .