diff options
Diffstat (limited to 'lisp/emacs-lisp')
| -rw-r--r-- | lisp/emacs-lisp/comp.el | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/comp.el b/lisp/emacs-lisp/comp.el index 5d2f8d412fe..895e1ac33e4 100644 --- a/lisp/emacs-lisp/comp.el +++ b/lisp/emacs-lisp/comp.el @@ -2530,7 +2530,9 @@ Fold the call in case." (and (apply #'comp-cstr-intersection lval operands)) (not - (comp-cstr-negation lval (car operands))))) + ;; Prevent double negation! + (unless (comp-cstr-neg (car operands)) + (comp-cstr-negation lval (car operands)))))) (`(setimm ,lval ,v) (setf (comp-mvar-value lval) v)) (`(phi ,lval . ,rest) |