[Bug middle-end/103372] Warning on failure order defaulting to SEQ_CST if not a compile time constant

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103372

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

clang decides (on aarch64 at least) emits a conditional based on the argument,
instead of special casing it to SEQ_CST .