https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80878
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- libatomic provides a definition for __atomic_compare_exchange_16 when the native instruction isn't available.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80878
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- libatomic provides a definition for __atomic_compare_exchange_16 when the native instruction isn't available.