[Bug target/125856] x86 gcc16 codesize regression related to memcpy inline caused by r16-2047-g401199377c5004

[liuhongt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125856

--- Comment #2 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
> 
> If it looks OK, we can expand the bounded memcpy like memmove.

Maybe at O2, we still use libcall, and at O3, expand like memmove?