add assertion for missing op support

diff --git a/lisp/emacs-lisp/comp.el b/lisp/emacs-lisp/comp.el
index 12c8ca63699449dafbff33333a90488c1ccb32dd..702e10df8d95db87e8d123e1aac0dee559fa0aa4 100644 (file)
--- a/lisp/emacs-lisp/comp.el
+++ b/lisp/emacs-lisp/comp.el
@@ -817,7 +817,7 @@ the annotation emission."
       (byte-stack-set
        (comp-with-sp (1+ (comp-sp))
          (comp-copy-slot (comp-sp) (- (comp-sp) arg))))
-      (byte-stack-set2) ;; TODO
+      (byte-stack-set2 (cl-assert nil)) ;; TODO
       (byte-discardN
        (comp-stack-adjust (- arg)))
       (byte-switch