[Bug tree-optimization/66261] operations that simplify whether the pointers are the same or not (++p;++q;--p;--q)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66261

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Interesting ;)