[Bug c++/84525] GCC7: generate movaps instruction when assign to unaligned __int128*

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84525

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I wrote it above.  memcpy or packed struct.  And there is no reason to think
about memcpy as something inefficient, GCC will turn those single element
memcpy calls into efficient unaligned loads or stores.