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

[joseph at codesourcery dot com]

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

--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
This is where C distinguishes C11 _Alignof (the minimum alignment the type 
is guaranteed to have in all contexts, so 4, see min_align_of_type) from 
GNU C __alignof (the normal alignment of the type, so 8).  I don't know if 
a similar distinction is needed for C++; that depends on how the standard 
C++ alignof is specified.