[Bug libstdc++/89624] HLE acquire/release bits in std::memory_order don't work with -fshort-enums or -fstrict-enums

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89624

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Why do we care for -fshort-enums?  Aren't those outside of the standard?