http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60220
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- In GCC 4.9 (maybe even in 4.8), the loop is converted into memset by the time the vectorizer gets around to the code.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60220
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- In GCC 4.9 (maybe even in 4.8), the loop is converted into memset by the time the vectorizer gets around to the code.