From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS17314 8.43.84.0/22 X-Spam-Status: No, score=-3.8 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id D5F151F8C6 for ; Mon, 26 Jul 2021 08:49:55 +0000 (UTC) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 228EC388CC07 for ; Mon, 26 Jul 2021 08:49:55 +0000 (GMT) Received: from mail-out.m-online.net (mail-out.m-online.net [IPv6:2001:a60:0:28:0:1:25:1]) by sourceware.org (Postfix) with ESMTPS id C9D7C384B10F for ; Mon, 26 Jul 2021 08:49:06 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org C9D7C384B10F Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=nefkom.net Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4GYD9r7572z1s9rD; Mon, 26 Jul 2021 10:49:04 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4GYD9r5V6hz1qr3W; Mon, 26 Jul 2021 10:49:04 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de 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 1k0hZJ0QJAkw; Mon, 26 Jul 2021 10:49:02 +0200 (CEST) X-Auth-Info: D9gdEVcKi1P24kdCNCSkacUijrZJ0/TvL96Z/EErkrmLvnsOXAsEtr9b87vY24hA Received: from igel.home (ppp-46-244-163-183.dynamic.mnet-online.de [46.244.163.183]) (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; Mon, 26 Jul 2021 10:49:02 +0200 (CEST) Received: by igel.home (Postfix, from userid 1000) id 56EE12C263B; Mon, 26 Jul 2021 10:49:02 +0200 (CEST) From: Andreas Schwab To: Naohiro Tamura via Libc-alpha Subject: Re: [PATCH] config: Remove HAVE_BUILTIN_MEMSET macro References: <20210713082214.307529-1-naohirot@fujitsu.com> <20210726083433.385572-1-naohirot@fujitsu.com> X-Yow: I want to read my new poem about pork brains and outer space... Date: Mon, 26 Jul 2021 10:49:02 +0200 In-Reply-To: <20210726083433.385572-1-naohirot@fujitsu.com> (Naohiro Tamura via Libc-alpha's message of "Mon, 26 Jul 2021 08:34:33 +0000") Message-ID: <87zgu9cvep.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces+e=80x24.org@sourceware.org Sender: "Libc-alpha" On Jul 26 2021, Naohiro Tamura via Libc-alpha wrote: > Interestingly, removed code had a critical bug that is > HAVE_BUILTIN_MEMSET macro never be defined, because yes/no assignment > to libc_cv_gcc_builtin_memset was reversed in configure.ac as below: No, the point of the check is that __buildin_memset does *not* expand to a memset libcall, as explained in the comment you removed. 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."