https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99859
--- Comment #21 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Looks to be fixed in GCC 11. It still fails for me with GCC 10.3 though.
[Bug c++/99859] constexpr evaluation with member function is incorrect
pinskia at gcc dot gnu.org via Gcc-bugs Wed, 28 Jul 2021 15:16:49 -0700
