From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Tom Tromey Newsgroups: gmane.emacs.devel Subject: Re: Emacs Lisp JIT Compiler Date: Wed, 15 Aug 2018 18:03:06 -0600 Message-ID: <87in4bi3et.fsf@tromey.com> References: <87va8ej4o1.fsf@tromey.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1534377703 21230 195.159.176.226 (16 Aug 2018 00:01:43 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 16 Aug 2018 00:01:43 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.50 (gnu/linux) Cc: Tom Tromey , emacs-devel@gnu.org To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Aug 16 02:01:39 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 1fq5jP-0005Pj-6E for ged-emacs-devel@m.gmane.org; Thu, 16 Aug 2018 02:01:39 +0200 Original-Received: from localhost ([::1]:52757 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fq5lV-0001Ev-SZ for ged-emacs-devel@m.gmane.org; Wed, 15 Aug 2018 20:03:49 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49353) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fq5lA-00017I-PN for emacs-devel@gnu.org; Wed, 15 Aug 2018 20:03:29 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fq5l6-0007eD-Tf for emacs-devel@gnu.org; Wed, 15 Aug 2018 20:03:28 -0400 Original-Received: from gateway20.websitewelcome.com ([192.185.47.18]:14976) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fq5l4-0007W1-Sn for emacs-devel@gnu.org; Wed, 15 Aug 2018 20:03:23 -0400 Original-Received: from cm17.websitewelcome.com (cm17.websitewelcome.com [100.42.49.20]) by gateway20.websitewelcome.com (Postfix) with ESMTP id 0973E401043E8 for ; Wed, 15 Aug 2018 19:03:08 -0500 (CDT) Original-Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id q5kpfRXEiPvAdq5kpfRNC9; Wed, 15 Aug 2018 19:03:08 -0500 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Es6AaPTAp6JtaO0To6hZFxlCg3XUJYe3mAnyR72TEo0=; b=LzO7A99c+T2ApVgNYQVRxnhLii a7uE8a76vcJn59Rr5JCeTh/8OITSRJ0RkSueZhcom7f+uHtvt6E3+Vy+dP33VjuLiyhxdDLJtbLTO XiopS/oxHwN6yQieMm0R2Btq5; Original-Received: from 75-166-85-72.hlrn.qwest.net ([75.166.85.72]:39422 helo=bapiya) by box5379.bluehost.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1fq5kp-002C9t-NF; Wed, 15 Aug 2018 19:03:07 -0500 X-Attribution: Tom In-Reply-To: (Paul Eggert's message of "Sun, 12 Aug 2018 22:37:25 -0700") X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 75.166.85.72 X-Source-L: No X-Exim-ID: 1fq5kp-002C9t-NF X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 75-166-85-72.hlrn.qwest.net (bapiya) [75.166.85.72]:39422 X-Source-Auth: tom+tromey.com X-Email-Count: 2 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 192.185.47.18 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:228576 Archived-At: Paul> libjit has only one committer, Aleksey, and no commits since March. Is Paul> there a bottleneck there? Aleksey emailed me after this thread to say that a summer of code student implemented a new register allocator for libjit. This seems pretty significant, as that was the biggest problem I noticed while looking at assembly code from the JIT (btw on the JIT branch you can M-x jit-disassemble to see the code for a function). So, libjit may remain a good choice. Tom