From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: HAVE_FAST_UNALIGNED_ACCESS Date: Sat, 01 Apr 2023 08:45:24 +0800 Message-ID: <875yagtopn.fsf@yahoo.com> References: <87sfdmlgzx.fsf@gmail.com> <94d3de92c50a96d9172f88462bf3bc9c2792600c.camel@gmail.com> <83mt3s244o.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31121"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Eli Zaretskii , vibhavp@gmail.com, rpluim@gmail.com, emacs-devel@gnu.org To: Mattias =?utf-8?Q?Engdeg=C3=A5rd?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Apr 01 02:46:35 2023 Return-path: Envelope-to: ged-emacs-devel@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 1piPO7-0007vD-2e for ged-emacs-devel@m.gmane-mx.org; Sat, 01 Apr 2023 02:46:35 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1piPNF-0008Hp-GL; Fri, 31 Mar 2023 20:45:41 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1piPND-0008Hg-HG for emacs-devel@gnu.org; Fri, 31 Mar 2023 20:45:39 -0400 Original-Received: from sonic309-22.consmr.mail.ne1.yahoo.com ([66.163.184.148]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1piPNC-00051W-2K for emacs-devel@gnu.org; Fri, 31 Mar 2023 20:45:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1680309934; bh=sD9k8AJFbFLpGCCcc29SxqrI74gylnEtRpm4YwqS7CI=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=qlFQEsqliCMyZHcnncMMco6hOQ3R6B3JSJrweJOK0JQoIkOpwk5i+ItERngVzUnVViiwbGd30CLDwMLj5MNrbzm/Idj07mVEfkenOzjvhj8YtrU+HN+C2rgHW7VRCnbsYiyerzBQImvvSD/rLYTm0EjWkiqZboQhNJhdoiB/7KARkm0xPizIqzzZLwJBpHzRySmGd/+WSYgfjL1OCXbfNrEoTCDsvUFWUhkBsoHtO4al34rbTuEQY33QCxPuJtwrWuLSgZ5bTzLywMnSLy5DxCSk2xwBrD+4ucp7qObshOmZpT5XWTNYwD/qhUlDUgR/NjGr5xHervwG3zxMNk8d2A== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1680309934; bh=ZP+2AlkH39YY3pEHFB0HTm++dYdsVeqrPwXkYi9tDnx=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=hdg3ioSf2tx6folO0mrexrNvgcIVTU0jxI167ZkrdRzFm3ufFaDtQyk7S37uAH9vtppX+eAFf1ZwjX/995V5NnQ93oVVJ88tOO358MWhSdabTi/zmnwHqXmZYfP+qhKeePVcU8pNBuB5XdFmCjY8/fkj7Mj29dgJMlz8utEvH+6YJpWlOn3ZSBJE1DK5VSUA6iq++t4fa1Zepf1jTDGRNXZk/T97jNra7UZn6kfbT5c/i07OUUZzLFsNJ8EAiN0iSB805J7Bf4OfHNhe3AF4l+l/5FuXqAeJHHMpXYqISM/Ci5PB/J6pfrx1j+R/ZwP8HNMPpDol+JNf9xxKZzO1Ug== X-YMail-OSG: sBAaxgoVM1kMNPjGgVNgLfvwuzhvU5Fr7rcpgSVjcU14I4lNNvwq7uDhNnrmH.b H4yIVcYPQgz4NOboYw_pB0Qr0njv_7hcRKPVCyzdn7jxBD1cq535op_f_l5nr13G2EF6rOA7K28i 1.xoX4E_kmL5ysjxTZxTBd62j_Nbia9Tc91eqWD4PZeK0fxAG7QrKHV9ZSbmOBvxITFGsLMLsAqC u.iumC7nwH5YaHoa1FPc.togSf_Nt9XCA6K6KI2opePoGwEOPuXXWQHq.h74ljGAhzhW8iLPSlI1 7olXM3_rthoHss6H5OfQ2dxJRza2fCE_RTITCpnqw6u.lpTO0v2ygf3axUntxeWgdY7HMRkq8Wmr xbLM8gaXqp4gPwpkyeYscGhXEOD17LQdJvj3VlgPw1IIemnr16HaK7Ob.xxiz6ilYMiYt.w8WpAR 9FTZcw6HU2OEy9.Ves8e3EwiCrWdQLqbPDBglN4LNdd25c.yjF9OQgY_IBVl0xRuNNexWpXa13BQ _5o6fehLPbSBNDN2m3TgIpDwkUniTa0gigxVBGDitOz3jcFTftuvOlwLmmW3Mawf0pnYweBZUG4A N_Fp88v2AwhecfB5.7nqSLzQONuJeOTjVcnFoC5lwD.IX1bVBLy.Br0YsRKhtqEwwpWYyweRvwQW QmWjVUUA4vh6VdE6tlnqGqNzrlWDGsXebBXu9ky1OMOuEMbKrCQbVM6Gsb7GTBwJsXWEqCFepzo2 NtgWCgWh4HUwrYdmUOQju6ktmmMR8tgz7xcEDENelMG3j7lyRl6x6YJD_M_iRJL2QCpoVQaW5tzM PnCGIeBo5VceH5ysPARpmtyAVk0m9U4dT4vvfv95qg X-Sonic-MF: X-Sonic-ID: fef92e91-5a0b-4575-97a7-aff5c5911782 Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic309.consmr.mail.ne1.yahoo.com with HTTP; Sat, 1 Apr 2023 00:45:34 +0000 Original-Received: by hermes--production-sg3-6d6fb994f6-qwzcd (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID 1b921adb2371415b92ab6bdff297b1a8; Sat, 01 Apr 2023 00:45:29 +0000 (UTC) In-Reply-To: ("Mattias =?utf-8?Q?Engdeg=C3=A5rd=22's?= message of "Fri, 31 Mar 2023 20:03:52 +0200") X-Mailer: WebService/1.1.21284 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.184.148; envelope-from=luangruo@yahoo.com; helo=sonic309-22.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:304954 Archived-At: Mattias Engdeg=C3=A5rd writes: > That's fine with me; I just got the impression that there was a > request for building Emacs with a sanitiser on that branch. > I'll apply it to master. NO!! My request is for you to avoid such highly problematic undefined behavior on either branch. I posted an example of GCC generating code with alignment requirements on x86_64, and Robert should have sent it to you as well.