Commit 53bc1e29 authored by Stefan Monnier's avatar Stefan Monnier

* lisp/emacs-lisp/byte-opt.el (byte-optimize-binary-predicate): Don't assume

there can't be more than 2 arguments.

Fixes: debbugs:17584
parent 6c5fa28d
2014-05-27 Stefan Monnier <monnier@iro.umontreal.ca>
* emacs-lisp/byte-opt.el (byte-optimize-binary-predicate): Don't assume
there can't be more than 2 arguments (bug#17584).
2014-05-27 Glenn Morris <rgm@gnu.org>
* simple.el (filter-buffer-substring-functions)
......
......@@ -859,14 +859,16 @@
(defun byte-optimize-binary-predicate (form)
(if (macroexp-const-p (nth 1 form))
(if (macroexp-const-p (nth 2 form))
(condition-case ()
(list 'quote (eval form))
(error form))
;; This can enable some lapcode optimizations.
(list (car form) (nth 2 form) (nth 1 form)))
form))
(cond
((or (not (macroexp-const-p (nth 1 form)))
(nthcdr 3 form)) ;; In case there are more than 2 args.
form)
((macroexp-const-p (nth 2 form))
(condition-case ()
(list 'quote (eval form))
(error form)))
(t ;; This can enable some lapcode optimizations.
(list (car form) (nth 2 form) (nth 1 form)))))
(defun byte-optimize-predicate (form)
(let ((ok t)
......
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