https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80878
--- Comment #45 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- (In reply to Luke Dalessandro from comment #44) > Now that https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104688 was resolved is > it possible to actually get the atomic/atomic_ref to generate cmpxchg16b? Or > is this still blocked? As everyone who is trying to write lock-free > algorithms has pointed out, not doing so is an issue. No, PR104688 means using vector load for 16B atomic when the CPU guarantees the vector load is atomic. It has nothing to do with this issue.
