From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Mattias_Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.devel Subject: Re: __builtin_assume warnings Date: Tue, 18 Aug 2020 09:11:26 +0200 Message-ID: References: <8e65e2a9-1058-3084-7f8d-8439fa908fb3@cs.ucla.edu> <1da4c4ff-f057-f4ac-c3ec-3232bc0a4477@cs.ucla.edu> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.15\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5985"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel To: Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Aug 18 09:12:23 2020 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 1k7vnD-0001SV-6i for ged-emacs-devel@m.gmane-mx.org; Tue, 18 Aug 2020 09:12:23 +0200 Original-Received: from localhost ([::1]:58166 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7vnC-000574-3H for ged-emacs-devel@m.gmane-mx.org; Tue, 18 Aug 2020 03:12:22 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54368) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7vmb-0004VD-1B for emacs-devel@gnu.org; Tue, 18 Aug 2020 03:11:45 -0400 Original-Received: from mail85c50.megamailservers.eu ([91.136.10.95]:45298 helo=mail18c50.megamailservers.eu) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7vmY-0001DD-Tc for emacs-devel@gnu.org; Tue, 18 Aug 2020 03:11:44 -0400 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1597734690; bh=MnxhBKAioxt8chVkvLMTohk5F3UFIO1jgDbxxknQdnI=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=NJk5VI2Z+ad54UsGFQiDWJSAtVPaSVm3oIVpuCvhhkPdF5lRvdTZWN4jRk4we1F1n cg65vQC016qOPEgQ63PnzqTfFc1Xx5y+DkPRWv691uQcaAmyAc27PuaU8n1wk31huR k49jWxLlBKxsU1BGveKmJdrmbMmA1LLiZhLYecA8= Feedback-ID: mattiase@acm.or Original-Received: from [192.168.0.4] (c188-150-171-71.bredband.comhem.se [188.150.171.71]) (authenticated bits=0) by mail18c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 07I7BR3F015942; Tue, 18 Aug 2020 07:11:29 +0000 In-Reply-To: <1da4c4ff-f057-f4ac-c3ec-3232bc0a4477@cs.ucla.edu> X-Mailer: Apple Mail (2.3445.104.15) X-CTCH-RefID: str=0001.0A782F23.5F3B7F22.0025, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-CSC: 0 X-CHA: v=2.3 cv=K8Zc4BeI c=1 sm=1 tr=0 a=SF+I6pRkHZhrawxbOkkvaA==:117 a=SF+I6pRkHZhrawxbOkkvaA==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=CWo1uSSULQcg4ACRookA:9 a=CjuIK1q_8ugA:10 X-Origin-Country: SE Received-SPF: softfail client-ip=91.136.10.95; envelope-from=mattiase@acm.org; helo=mail18c50.megamailservers.eu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 03:11:39 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x (no timestamps) [generic] X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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" Xref: news.gmane.io gmane.emacs.devel:253931 Archived-At: 18 aug. 2020 kl. 00.11 skrev Paul Eggert : > I guess that for that diagnostic, Clang assumes that every function = call has a side effect, which is pretty silly. I worked around the bug = (and by an another bogus-warning bug I ran into on Fedora 31's Clang = 9.0.1) by installing the attached. Thank you, but aren't we throwing the baby out with the bathwater? = Wouldn't -Wno-assume, either locally (clang pragmas around = __builtin_assume) or globally (configure?) be more effective?