[Bug middle-end/122760] Missed optimization: constexpr std::atomic<int> x{0} not constant-propagated through load()

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122760

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am not 100% sure if this is well defined.