[Bug c++/94485] [10.0.1, c++2a] g++ optimizes away necessary code, accepts arbitrary inline asm

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94485

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Also c++20 changes constexpr is handled which is why inline asm is accepted now
IIRC.