https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103478
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- arguments to constexpr functions are not valid template arguments.
pinskia at gcc dot gnu.org via Gcc-bugs Mon, 29 Nov 2021 12:26:05 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103478
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- arguments to constexpr functions are not valid template arguments.