https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69710
--- Comment #12 from Doug Gilmore <doug.gilmore at imgtec dot com> --- > Yes, I proposed some cleanup passess after vectorization but richi > thinks it's genrally expensive. So what's implmentation complexity > of pass_dominator? One thing we might consider is only enable it when vectorization is run on architectures where cleanup is needed. I plan to send an RFC comment for my patch to see what objections there are to that approach, though beforehand I'd like to investigate what could be done to the vectorizer so that it doesn't generate code that contain false dependencies.
