[Bug c++/71069] -Waddress didn't catch all cases

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71069

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
-fsantize=undefined will catch this at runtime.  What is undefined is passing a
NULL to setData.