[Bug c++/127487] __builtin_is_virtual_base_of reports a non-virtual base reached through a virtual base as virtual

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127487

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Reading https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2985r0.html
gives me the impression that GCC is correct here.