[Bug middle-end/90263] Calls to mempcpy should use memcpy

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90263

--- Comment #2 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #1)
> As stated several times in the past, I strongly disagree.

Why? GCC already does this for bzero and bcopy.