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: __builtin_assume warnings Date: Wed, 12 Aug 2020 11:38:21 +0200 Message-ID: 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="24539"; 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 Wed Aug 12 11:39:26 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 1k5nEE-0006KP-4y for ged-emacs-devel@m.gmane-mx.org; Wed, 12 Aug 2020 11:39:26 +0200 Original-Received: from localhost ([::1]:51762 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k5nED-0000Pc-5j for ged-emacs-devel@m.gmane-mx.org; Wed, 12 Aug 2020 05:39:25 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41504) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k5nDW-0008QE-3A for emacs-devel@gnu.org; Wed, 12 Aug 2020 05:38:42 -0400 Original-Received: from mail1470c50.megamailservers.eu ([91.136.14.70]:37738 helo=mail102c50.megamailservers.eu) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k5nDT-0006E2-GJ for emacs-devel@gnu.org; Wed, 12 Aug 2020 05:38:41 -0400 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1597225104; bh=4vyiMmHpDSUa8BXtrSPUeG9BqPvdo9dyjEf1/bIZ0Gs=; h=From:Subject:Date:Cc:To:From; b=raUQaJUIQTQ5jDE5QuLjbQAD+aid0W47k1klcsyCS50k3v2mgrt+HgwSBYV5PikBF DBdMZLOpoLoEw5LXhvWBJ95+T0VaiGCI1JMzbtpQC4D4OAEYQzs7UYBdDj4v2aTlYV b8ES8qoHjnZ8LXsC5tcu9be5K4eE1ZJpp6sDS+VQ= 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 mail102c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 07C9cMaR030233; Wed, 12 Aug 2020 09:38:24 +0000 X-Mailer: Apple Mail (2.3445.104.15) X-CTCH-RefID: str=0001.0A782F1D.5F33B890.0050, 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=S52nP7kP c=1 sm=1 tr=0 a=SF+I6pRkHZhrawxbOkkvaA==:117 a=SF+I6pRkHZhrawxbOkkvaA==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=bnafJBKdCr_KANcGCgQA:9 a=CjuIK1q_8ugA:10 X-Origin-Country: SE Received-SPF: softfail client-ip=91.136.14.70; envelope-from=mattiase@acm.org; helo=mail102c50.megamailservers.eu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/12 05:38:34 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:253672 Archived-At: Building on macOS with Apple clang version 11.0.0 (clang-1100.0.33.17) = now gives a stream of warnings about: In file included from ../../emacs/src/dispnew.c:27: ../../emacs/src/lisp.h:1812:12: warning: the argument to = '__builtin_assume' has side effects that will be discarded [-Wassume] eassume (0 <=3D i && i < bool_vector_size (a)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../../emacs/src/lisp.h:182:32: note: expanded from macro 'eassume' # define eassume(cond) assume (cond) ^~~~ ../../emacs/lib/verify.h:305:38: note: expanded from macro 'assume' # define assume(R) __builtin_assume (R) ^ We could build with -Wno-assume, or alter the definition of 'assume' to # define assume(R) _Pragma("clang diagnostic push") = \ _Pragma("clang diagnostic ignored \"-Wassume\"") = \ __builtin_assume (R) = \ _Pragma("clang diagnostic pop") but neither seems entirely satisfactory.