From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#18767: 24.4; incorrect byte-compile on arithmatic comparisons Date: Mon, 20 Oct 2014 17:42:56 -0400 Message-ID: References: <4CCFEB0DE4728Cshigeru.fukaya@gmail.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1413841468 11352 80.91.229.3 (20 Oct 2014 21:44:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 20 Oct 2014 21:44:28 +0000 (UTC) Cc: 18767@debbugs.gnu.org To: Shigeru Fukaya Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Oct 20 23:44:21 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XgKkW-00031o-DF for geb-bug-gnu-emacs@m.gmane.org; Mon, 20 Oct 2014 23:44:20 +0200 Original-Received: from localhost ([::1]:46999 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XgKkV-0006nR-Rs for geb-bug-gnu-emacs@m.gmane.org; Mon, 20 Oct 2014 17:44:19 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56486) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XgKkM-0006nG-41 for bug-gnu-emacs@gnu.org; Mon, 20 Oct 2014 17:44:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XgKkE-0007uY-KM for bug-gnu-emacs@gnu.org; Mon, 20 Oct 2014 17:44:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:37226) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XgKkE-0007uU-Hj for bug-gnu-emacs@gnu.org; Mon, 20 Oct 2014 17:44:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XgKkD-0007db-SF for bug-gnu-emacs@gnu.org; Mon, 20 Oct 2014 17:44:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 20 Oct 2014 21:44:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18767 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18767-submit@debbugs.gnu.org id=B18767.141384138629272 (code B ref 18767); Mon, 20 Oct 2014 21:44:01 +0000 Original-Received: (at 18767) by debbugs.gnu.org; 20 Oct 2014 21:43:06 +0000 Original-Received: from localhost ([127.0.0.1]:57554 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XgKjJ-0007c3-8F for submit@debbugs.gnu.org; Mon, 20 Oct 2014 17:43:05 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:28889) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XgKjG-0007bX-Cj for 18767@debbugs.gnu.org; Mon, 20 Oct 2014 17:43:04 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArUGAIDvNVNFpY87/2dsb2JhbABZgwaDSsA9gRcXdIIlAQEBAQIBViMFCws0EhQYDSSIBAivZ6IyF456B4Q4BKkZgWqDTCE X-IPAS-Result: ArUGAIDvNVNFpY87/2dsb2JhbABZgwaDSsA9gRcXdIIlAQEBAQIBViMFCws0EhQYDSSIBAivZ6IyF456B4Q4BKkZgWqDTCE X-IronPort-AV: E=Sophos;i="4.97,753,1389762000"; d="scan'208";a="94679408" Original-Received: from 69-165-143-59.dsl.teksavvy.com (HELO pastel.home) ([69.165.143.59]) by ironport2-out.teksavvy.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 20 Oct 2014 17:42:56 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id 450DB3EBF; Mon, 20 Oct 2014 17:42:56 -0400 (EDT) In-Reply-To: <4CCFEB0DE4728Cshigeru.fukaya@gmail.com> (Shigeru Fukaya's message of "Sun, 19 Oct 2014 04:58:31 +0900") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:94847 Version:24.5 > byte-compile of arithmatic comparison operators on more than two > arguments is incorrect. Indeed, I was not very awake when I committed that code. I just reverted the change so the byte-compiler simply doesn't optimize this case. To do any better, I think we'll have to do something like: loop over all args, doing "byte-compile-form" + "dup", and then apply the comparisons backward, combining them with "and". Stefan