[Bug c++/80835] Reading a member of an atomic can load just that member, not the whole struct

[peter at cordes dot ca]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80835

--- Comment #5 from Peter Cordes <peter at cordes dot ca> ---
Previous godbolt link was supposed to be: https://godbolt.org/g/78kIAl
which includes the CAS functions.