[Bug c++/69560] x86_64: alignof(uint64_t) produces incorrect results with -m32

[mh+gcc at glandium dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69560

--- Comment #14 from Mike Hommey <mh+gcc at glandium dot org> ---
(In reply to Andreas Schwab from comment #13)
> alignof(long long) "type of a complete object"
> alignof(foo) "type of a subobject"

But that doesn't tell why the alignment of a long long is 8 as a complete
object, but 4 as a subobject (the offset of l in foo is 4, not 8).