https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91934
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
Known to work| |8.2.0
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Dmitrii Tochanskii from comment #4)
>
> I don't have 8.2 now but according to godbolt it generates more adequate
> code.
Indeed 8.2 simply doesn't vectorize the unroll-and-jam'ed loop.
