[Bug c/95556] Not replacing __builtin___memcpy_chk() as documented

[pg...@j-davis.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95556

--- Comment #1 from Jeff Davis <pg...@j-davis.com> ---
Created attachment 48687
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48687&action=edit
Example 1