[Bug middle-end/95556] Not replacing __builtin___memcpy_chk() as documented

[jakub at gcc dot gnu.org]

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

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
And note that
-      if (lt->pos >= (8192-sizeof(S)))
+      if (lt->pos >= (8192-16))
is not an insignificant change, the first one is unsigned comparison, the
second one signed.