From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.bugs Subject: bug#42147: 28.0.50; pure vs side-effect-free, missing optimizations? Date: Sun, 05 Jul 2020 10:39:02 +0200 Message-ID: <87pn9awe3d.fsf@linux-m68k.org> References: <3A9CC2A3-8307-47B2-8D80-795C0AF020E1@acm.org> <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> <0AF276D8-FB28-4745-AAE4-DC30E0441F89@acm.org> <793d67e0-68a0-fc53-89a9-0902747d6389@cs.ucla.edu> <83zh8ftfwr.fsf@gnu.org> <672f15b0-04f9-e884-4815-85ca1d1af9bb@cs.ucla.edu> <6d8ba3b1-86b8-3dc8-3d80-17222d436b80@cs.ucla.edu> <83lfjyu1mo.fsf@gnu.org> <4e6f253b-0771-e90d-a24e-4ce1bd5d3a2a@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="1592"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.91 (gnu/linux) Cc: Pip Cet , mattiase@acm.org, 42147@debbugs.gnu.org, monnier@iro.umontreal.ca, andrea_corallo@yahoo.it To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Jul 05 10:40:22 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 1js0CD-0000JE-TU for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 05 Jul 2020 10:40:21 +0200 Original-Received: from localhost ([::1]:55696 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1js0CC-0004Cp-DB for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 05 Jul 2020 04:40:20 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35598) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1js0Bu-0004C2-QR for bug-gnu-emacs@gnu.org; Sun, 05 Jul 2020 04:40:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:48457) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1js0Bu-0006BD-HZ for bug-gnu-emacs@gnu.org; Sun, 05 Jul 2020 04:40:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1js0Bu-00008p-FE for bug-gnu-emacs@gnu.org; Sun, 05 Jul 2020 04:40:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Andreas Schwab Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 05 Jul 2020 08:40:02 +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=B42147.1593938349452 (code B ref 42147); Sun, 05 Jul 2020 08:40:02 +0000 Original-Received: (at 42147) by debbugs.gnu.org; 5 Jul 2020 08:39:09 +0000 Original-Received: from localhost ([127.0.0.1]:59998 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1js0B3-00007E-CF for submit@debbugs.gnu.org; Sun, 05 Jul 2020 04:39:09 -0400 Original-Received: from mail-out.m-online.net ([212.18.0.9]:33753) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1js0B1-000074-6Q for 42147@debbugs.gnu.org; Sun, 05 Jul 2020 04:39:08 -0400 Original-Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4B02DS3hYrz1qrfg; Sun, 5 Jul 2020 10:39:04 +0200 (CEST) Original-Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4B02DS2Ztzz1qrFH; Sun, 5 Jul 2020 10:39:04 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de Original-Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id M8WUT5WkLoBN; Sun, 5 Jul 2020 10:39:03 +0200 (CEST) X-Auth-Info: j+6WbCD2Tg8mLQ+k6rRlO/qGusY7G9+y6rGDg6UJs1tRiWPjLXRqL7VXQocimVxK Original-Received: from hase.home (ppp-46-244-191-0.dynamic.mnet-online.de [46.244.191.0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sun, 5 Jul 2020 10:39:03 +0200 (CEST) Original-Received: by hase.home (Postfix, from userid 1000) id 9485910175D; Sun, 5 Jul 2020 10:39:02 +0200 (CEST) X-Yow: TONY RANDALL! Is YOUR life a PATIO of FUN?? In-Reply-To: <4e6f253b-0771-e90d-a24e-4ce1bd5d3a2a@cs.ucla.edu> (Paul Eggert's message of "Sun, 5 Jul 2020 01:28:46 -0700") 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:182730 Archived-At: On Jul 05 2020, Paul Eggert wrote: >> . why didn't GCC folks made SSE2 the default output? > > I suspect they think x86 is on its way out and not worth worrying > about. It all depends on how you configure it. You can make -mfpmath=sse the default if you like, but gcc still supports pre-SSE2 configurations. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."