[Bug target/104610] memcmp () == 0 can be optimized better for avx512f

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104610

--- Comment #11 from H.J. Lu <hjl.tools at gmail dot com> ---
Don't worry about vzeroupper.
It's ok to have vzeroupper.