[Bug libstdc++/80390] std::pair of aligned type gives bogus warning

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80390

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Of course. Your response is not late, I just couldn't CC you and attach the
patch at the same time, so mentioned you in a follow-up :-)