[Bug c++/71449] builtins accepted in default template arguments but rejected when explicitly specified

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71449

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Most likely __builtin_parity (0) got folded to 0 for the first case.