reduce on primitive arrays doesn't use ArraySeq_TYPE.reduce

Question

Currently a reduce on (e.g.) long-array never ends up in the fast {{ArraySeq_Long.reduce}} function. Only if the user calls {{seq}} on it beforehand.

So:

;; Fast: (reduce (fn [_ _]) 0 (seq (long-array [1]))) ;; >2x slower: (reduce (fn [_ _]) 0 (long-array [1]))

Answer 1

Reference: https://clojure.atlassian.net/browse/CLJ-2281 (reported by aralo)