4 ms·
> Not sure if it has changed since. It hasn't, Clang/GCC emit a cmpxchg16b only if you opt-in with `-mcx16`, which changes the ABI.
by ot 3y ago
> Not sure if it has changed since.
It hasn't, Clang/GCC emit a cmpxchg16b only if you opt-in with `-mcx16`, which changes the ABI.