[Bug c/83537] missing integer overflow in offsetof not diagnosed

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83537

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This was noticed on Mastodon today:
https://infosec.exchange/@jann/114315567622777610