From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#42147: 28.0.50; pure vs side-effect-free, missing optimizations? Date: Fri, 03 Jul 2020 09:11:29 -0400 Message-ID: References: <3A9CC2A3-8307-47B2-8D80-795C0AF020E1@acm.org> <0433A879-C98D-4B1A-B85C-A15DA9289099@acm.org> <1621669100.2102667.1593639091621@mail.yahoo.com> <775819003.2516724.1593687594435@mail.yahoo.com> <5F2B4684-34D1-4474-8909-9F435369FE54@acm.org> <705260433.2731607.1593698199171@mail.yahoo.com> <6CF8EE58-9A49-40E7-AA86-48AB39BF94BA@acm.org> <28B19D86-343C-4126-B95F-1F38735F73F2@acm.org> <1288c6a5-545b-f68c-ff6b-7683db3e54c1@cs.ucla.edu> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14484"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Paul Eggert , Andrea Corallo , 42147@debbugs.gnu.org To: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 03 15:12:19 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jrLUJ-0003fO-Iz for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 03 Jul 2020 15:12:19 +0200 Original-Received: from localhost ([::1]:55736 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jrLUI-0004bD-KM for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 03 Jul 2020 09:12:18 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42984) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jrLU2-0004Pe-SX for bug-gnu-emacs@gnu.org; Fri, 03 Jul 2020 09:12:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45087) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jrLU2-0007P0-Hu for bug-gnu-emacs@gnu.org; Fri, 03 Jul 2020 09:12:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jrLU2-0005R8-CP for bug-gnu-emacs@gnu.org; Fri, 03 Jul 2020 09:12:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 03 Jul 2020 13:12:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 42147 X-GNU-PR-Package: emacs Original-Received: via spool by 42147-submit@debbugs.gnu.org id=B42147.159378190620878 (code B ref 42147); Fri, 03 Jul 2020 13:12:02 +0000 Original-Received: (at 42147) by debbugs.gnu.org; 3 Jul 2020 13:11:46 +0000 Original-Received: from localhost ([127.0.0.1]:56633 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jrLTm-0005Qg-EG for submit@debbugs.gnu.org; Fri, 03 Jul 2020 09:11:46 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:18210) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jrLTi-0005QM-O1 for 42147@debbugs.gnu.org; Fri, 03 Jul 2020 09:11:44 -0400 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 00D6680ECE; Fri, 3 Jul 2020 09:11:37 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 9399380AED; Fri, 3 Jul 2020 09:11:30 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1593781890; bh=AWS3gMRMpaIcwlujzfdxyPQzU6tYFgzngCoxya2HfCg=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=ZiLo79JCzxCM2979/9dRq8RO1zNUnZOfvFJLRwP8VuBFSeJ83P44wtge7Tv9gf5+h 2ik6asIHbzyo6hsaHNZSo0MTfBjIIzPUS83LDgWDyOPe8oMwVemG0NoDlDXHuhCzxZ rDKXm4tfoXdwyN+aJpPgELLb76l1jz19lTDgRZTyJR2Kt2ZeOmCyLL2PT5sjeZGAg+ wsEXXukaD6CkXLbI19eLYLPPBJSNfBVG32AiivnU6ZbMlTypWvsGxAtgFf2cYEho/t GhkCIr0W49WYmaM2nKv1HfeCKxsj51pkiLxnGQMhUO5XGxCOO4VDg78XddmVFNMecU PC3BsZo3eVHLQ== Original-Received: from alfajor (unknown [157.52.0.200]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 4AB641203B5; Fri, 3 Jul 2020 09:11:30 -0400 (EDT) In-Reply-To: ("Mattias =?UTF-8?Q?Engdeg=C3=A5rd?="'s message of "Fri, 3 Jul 2020 10:32:56 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:182662 Archived-At: > Fortunately modern compilers generate SSE code by default, only passing > return values on the x87 stack as per the x86 ABI (which causes no > harm). This reduces an already tiny risk to nil. We could add an elaborate > configure or run-time test and admonishments to the installation > instructions but frankly we have better use of our time. I suggest we > replace byte-opt--portable-numberp with numberp (or nothing at all, > depending on where it occurs) and be done with it. Agreed, Stefan