-(defun handle-nested-dynamic-extent-lvars (lvar)
- (let ((uses (lvar-uses lvar)))
- ;; Stack analysis wants DX value generators to end their
- ;; blocks. Uses of mupltiple used LVARs already end their blocks,
- ;; so we just need to process used-once LVARs.
- (when (node-p uses)
- (node-ends-block uses))
- ;; If this LVAR's USE is good for DX, it must be a regular
- ;; combination, and its arguments are potentially DX as well.
- (flet ((recurse (use)
- (loop for arg in (combination-args use)
- append (handle-nested-dynamic-extent-lvars arg))))
- (cons lvar
- (if (listp uses)
- (loop for use in uses
- when (use-good-for-dx-p use)
- nconc (recurse use))
- (when (use-good-for-dx-p uses)
- (recurse uses)))))))
-