This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/77689] Missing vectorization lead to huge performance loss
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 22 Sep 2016 11:27:11 +0000
- Subject: [Bug tree-optimization/77689] Missing vectorization lead to huge performance loss
- Auto-submitted: auto-generated
- References: <bug-77689-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77689
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Markus Trippelsdorf from comment #2)
> Clang is pretty impressive using libc++ and -Ofast:
Looks like they can remove all stores from the loop. Though it does not remove
the empty loop afterwards though.