https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87521
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- Yes, on IRC Bruno already pointed out the problem with the comment 3 example. That doesn't change my mind, I still think it would be madness for an defaulted-on-first-declaration trivial destructor to change the type's layout.