[Bug target/99698] [aarch64] Impossible to accurately detect extensions using preprocessor

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99698

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>AFAICT there is no way to reliably detect armv8.2-a. 

There is supposed to be ....  See PR 99312 .