[Bug c++/117475] C++20: Union object with atomic integer cannot be statically initialized

[sebastian.huber--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117475

--- Comment #12 from Sebastian Huber <sebastian.hu...@embedded-brains.de> ---
(In reply to Andrew Pinski from comment #11)
> Note again the only reason clang 17 from opensuse works is because it is
> using GCC's libstdc++ from GCC 7 which is pre the fix for PR 58605 (which
> was done in GCC 10). And GCC 9.5.0 accepted the original testcase in comment
> #0 (with -std=c++2a) but that is because std::atomic didn't have the change
> for PR 58605 .

Thanks for your detailed analysis.