From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from esa4.mentor.iphmx.com (esa4.mentor.iphmx.com [68.232.137.252]) by sourceware.org (Postfix) with ESMTPS id E0D3B3945065 for ; Wed, 2 Sep 2020 17:12:59 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org E0D3B3945065 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=codesourcery.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=joseph_myers@mentor.com IronPort-SDR: VX26QRRqMUHF++Fg4NXkay1xj0oMX2sTW4DnByOwKLciedZYI9XZlBOq455viLKYps5Dyh/2DN /vOXbrbBUItb/W2kMiRGGaGzVmkoP5hxURlHybYq6V6ebRvLjtGRwWFCL5ZLkSpH2sVKrM8d5r xTC8jufIxV1OIVreTU3+q4VTpDyrXcdLFbk6u3kp84FxvvJpx0ocobXkCRVVyaVkJCtNAQ22Qi 3Le0zqMBlmcuR6zddMcbJEZXA5iw44EULdvqehzmULv7oKaEcveMoxV5JD2otVGR33CKxwmlNu aoY= X-IronPort-AV: E=Sophos;i="5.76,383,1592899200"; d="scan'208";a="52638699" Received: from orw-gwy-01-in.mentorg.com ([192.94.38.165]) by esa4.mentor.iphmx.com with ESMTP; 02 Sep 2020 09:12:58 -0800 IronPort-SDR: woDjfE0F+T7Z1WW85wNWYyu0KZwymZ6W9adH3yWvf5uaQnM/tFHX1X9bOnXmfh+NjDpE5SXXKH 7c+EC+IaqR73ml+9TrAmz9xOPXU9LhiJpNel/moBfoRuMBBaXn/R+t5dPMIqvm93gVO232uqNF yCejG4AXInMx/rzRh9singpcu3kGEGh/CokFuH1UcOpkGm5KWiXLdDFCC2p2uwYcyBkh5ekgHz YJxXe2fQvIvamXyxWNOL9d92S0CQIKF/CekyxXdjxjRMfjoPGflWnbxcIgkaSiXLjuEfplyG5j wT4= Date: Wed, 2 Sep 2020 17:12:53 +0000 From: Joseph Myers X-X-Sender: jsm28@digraph.polyomino.org.uk To: Sebastian Huber CC: Keith Packard , Subject: Re: [PATCH 0/3] ARM with only 32-bit floats do not have fast 64-bit FMA In-Reply-To: Message-ID: References: <20200808223413.4015633-1-keithp@keithp.com> <1fc07c90-694b-01ea-cedc-0656eccdd827@embedded-brains.de> <87wo1db8kt.fsf@keithp.com> <87lfhtayhs.fsf@keithp.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-Originating-IP: [137.202.0.90] X-ClientProxiedBy: svr-ies-mbx-06.mgc.mentorg.com (139.181.222.6) To SVR-IES-MBX-03.mgc.mentorg.com (139.181.222.3) X-Spam-Status: No, score=-3127.5 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: newlib@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Newlib mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Sep 2020 17:13:01 -0000 On Wed, 2 Sep 2020, Sebastian Huber wrote: > https://sourceware.org/git/?p=glibc.git;a=blob;f=math/s_fma.c;h=4d73af4f65d511594b2395d032a135721c578484;hb=HEAD No glibc configurations use that; they all use either a hardware instruction, an implementation based on sticky rounding as described by Boldo and Melquiond, or, in the absence of hardware exceptions and rounding modes, a soft-fp implementation. -- Joseph S. Myers joseph@codesourcery.com