[Bug c++/91423] address-of-packed-member when taking packed struct member by value

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91423

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Vec size = s.size;

you are invoking the copy constructor here ...
Which means you are taking the address (implicitly).