In my understanding, it’s both: you’re right about Automatic Reference Counting (ARC) being a compile time pass. But the reference counts that they use for said retain/release are atomic reference counted (ARC).
ARC certainly helps ARC be more performant than ARC without ARC due to the elided traffic on the count. (lol)
ARC certainly helps ARC be more performant than ARC without ARC due to the elided traffic on the count. (lol)