[Bug tree-optimization/77689] Missing vectorization lead to huge performance loss

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77689

--- Comment #9 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to morandidodo from comment #8)

> Actually, I tried it, but it does not seem to work. Indeed, using
> -mveclibabi=svml -lsvml -I(path-to-intel-lib-dir) does not seem to change
> the call address. If you have got any advice, it is appreciated ;)

This command will allow vectorizer to vectorize function calls, but in your
case, there are apparently other issues in play (see Comment #1) that prevent
vectorization.