[Bug middle-end/91946] wrong result comparing pointer with pointer+offset with -m32

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91946

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Also this was an a broken ABI mistake a long time ago.  Also comparing for non
equality outside an array bounds (besides one past the end) is also undefined
behavior. Undefined behavior does NOT need to be consistent behavior even at
runtime.