From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Alan Mackenzie Newsgroups: gmane.emacs.devel Subject: Re: scratch/accurate-warning-pos: Solid progress: the branch now bootstraps. Date: Mon, 26 Nov 2018 09:52:19 +0000 Message-ID: <20181126095219.GB4030@ACM> References: <20181117124534.GA8831@ACM> <83muq7u9rk.fsf@gnu.org> <20181123130904.GA2916@ACM> <20181125143125.GA27152@ACM> <20181125173528.GD27152@ACM> <20181125195402.GJ27152@ACM> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: blaine.gmane.org 1543226066 2976 195.159.176.226 (26 Nov 2018 09:54:26 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 26 Nov 2018 09:54:26 +0000 (UTC) User-Agent: Mutt/1.10.1 (2018-07-13) Cc: michael_heerdegen@web.de, eliz@gnu.org, "Charles A. Roelli" , cpitclaudel@gmail.com, emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Nov 26 10:54:21 2018 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gRDau-0000at-1V for ged-emacs-devel@m.gmane.org; Mon, 26 Nov 2018 10:54:20 +0100 Original-Received: from localhost ([::1]:34877 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gRDd0-00021s-DY for ged-emacs-devel@m.gmane.org; Mon, 26 Nov 2018 04:56:30 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49206) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gRDcM-00021b-HJ for emacs-devel@gnu.org; Mon, 26 Nov 2018 04:55:51 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gRDcG-0004N0-QI for emacs-devel@gnu.org; Mon, 26 Nov 2018 04:55:50 -0500 Original-Received: from colin.muc.de ([193.149.48.1]:54180 helo=mail.muc.de) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1gRDcF-0004JN-PC for emacs-devel@gnu.org; Mon, 26 Nov 2018 04:55:44 -0500 Original-Received: (qmail 78461 invoked by uid 3782); 26 Nov 2018 09:55:42 -0000 Original-Received: from acm.muc.de (p2E5D5CCE.dip0.t-ipconnect.de [46.93.92.206]) by colin.muc.de (tmda-ofmipd) with ESMTP; Mon, 26 Nov 2018 10:55:40 +0100 Original-Received: (qmail 4741 invoked by uid 1000); 26 Nov 2018 09:52:19 -0000 Content-Disposition: inline In-Reply-To: X-Delivery-Agent: TMDA/1.1.12 (Macallan) X-Primary-Address: acm@muc.de X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x [fuzzy] X-Received-From: 193.149.48.1 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:231386 Archived-At: Hello, Stefan. On Sun, Nov 25, 2018 at 15:08:52 -0500, Stefan Monnier wrote: > >> That would significantly increase the impact in terms of code-size and > >> CPU time (could explain why you see 8% slowdown which is more expansive > >> than my patch which turns EQ into EQL). > > Would it? > Yes: I think NILP is much more frequent than EQ. Ah right, I see what you mean, now: Leave EQ more or less as it is in scratch/accurate-warning-pos, but have NILP use "BASE_EQ" rather than EQ to compare with Qnil. My gut feeling is that this won't work, but I'm going to try it, anyway. Thanks for the suggestion! > Stefan -- Alan Mackenzie (Nuremberg, Germany).