[Bug c/67999] Wrong optimization of pointer comparisons

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67999

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
ssize_t is a signed integer and in the case of x86, it is 32bits which means
exactly what Marc wrote.