[Bug middle-end/101836] __builtin_object_size(P->M, 1) where M is an array and the last member of a struct fails

[kees at outflux dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836

--- Comment #10 from Kees Cook <kees at outflux dot net> ---
Here's a slightly reworked example:
https://godbolt.org/z/EvehMax84