Free the fast alist for each individual directory.
(vl-free-dirlist-cache x) → *
Function:
(defun vl-free-dirlist-cache (x) (declare (xargs :guard (vl-dirlist-cache-p x))) (let ((__function__ 'vl-free-dirlist-cache)) (declare (ignorable __function__)) (if (atom x) nil (progn$ (fast-alist-free (cdar x)) (vl-free-dirlist-cache (cdr x))))))
Theorem:
(defthm vl-free-dirlist-cache-of-vl-dirlist-cache-fix-x (equal (vl-free-dirlist-cache (vl-dirlist-cache-fix x)) (vl-free-dirlist-cache x)))
Theorem:
(defthm vl-free-dirlist-cache-vl-dirlist-cache-equiv-congruence-on-x (implies (vl-dirlist-cache-equiv x x-equiv) (equal (vl-free-dirlist-cache x) (vl-free-dirlist-cache x-equiv))) :rule-classes :congruence)