https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70012
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Might be a testsuite artifact in not reaching the cost model check but rejecting vectorization earlier (try bumping N to 32, after peeling for alignment no vectorized iteration would be left so we don't peel for alignment anymore thus we can't handle the store).
