From owner-freebsd-hackers@freebsd.org Sun May 26 22:55:52 2019 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5948315B312F for ; Sun, 26 May 2019 22:55:52 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Received: from smtp-out-no.shaw.ca (smtp-out-no.shaw.ca [64.59.134.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 0963271F30; Sun, 26 May 2019 22:55:49 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Received: from spqr.komquats.com ([70.67.125.17]) by shaw.ca with ESMTPA id V20ih6aEtldkPV20jh7vsn; Sun, 26 May 2019 16:53:03 -0600 X-Authority-Analysis: v=2.3 cv=Ko4zJleN c=1 sm=1 tr=0 a=VFtTW3WuZNDh6VkGe7fA3g==:117 a=VFtTW3WuZNDh6VkGe7fA3g==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=kj9zAlcOel0A:10 a=E5NmQfObTbMA:10 a=PDjUHgQ1AAAA:8 a=FnIUHYMPAAAA:8 a=6I5d2MoRAAAA:8 a=YxBL1-UpAAAA:8 a=lBi6uGXonejG0e1VBfcA:9 a=CjuIK1q_8ugA:10 a=bRK04h3HnY3C5mYB2GCI:22 a=U794neO1_LHRLYKJrBZ3:22 a=IjZwj45LgO3ly-622nXo:22 a=Ia-lj3WSrqcvXOmTRaiG:22 Received: from slippy.cwsent.com (slippy [10.1.1.91]) by spqr.komquats.com (Postfix) with ESMTPS id 9D244B9D; Sun, 26 May 2019 15:52:59 -0700 (PDT) Received: from slippy.cwsent.com (localhost [127.0.0.1]) by slippy.cwsent.com (8.15.2/8.15.2) with ESMTP id x4QMqwLb044742; Sun, 26 May 2019 15:52:58 -0700 (PDT) (envelope-from Cy.Schubert@cschubert.com) Received: from slippy (cy@localhost) by slippy.cwsent.com (8.15.2/8.15.2/Submit) with ESMTP id x4QMquSw044739; Sun, 26 May 2019 15:52:57 -0700 (PDT) (envelope-from Cy.Schubert@cschubert.com) Message-Id: <201905262252.x4QMquSw044739@slippy.cwsent.com> X-Authentication-Warning: slippy.cwsent.com: cy owned process doing -bs X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.7.1 Reply-to: Cy Schubert From: Cy Schubert X-os: FreeBSD X-Sender: cy@cwsent.com X-URL: http://www.cschubert.com/ To: Diane Bruce cc: Dimitry Andric , Yuri , Konstantin Belousov , Freebsd hackers list , emaste@freebsd.org, cy@freebsd.org Subject: Re: What is the portable 128-bit floating point type? In-Reply-To: Message from Diane Bruce of "Sun, 26 May 2019 08:08:09 -0400." <20190526120809.GB65430@night.db.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 26 May 2019 15:52:56 -0700 X-CMAE-Envelope: MS4wfL7zM5O5iwEp5t1r9pPPfIK9UmYRtJcGgGbYkZwJdSYqi93oZDXijcWwXe6ouy/TR63D9WV9TPGIF6yZQXuHG6KjI6xiJ2EykTAIlVzG19iV7KH8AolO y0YFLtnNPCxfhsUFqLGLuOhOL3n0sCZhWtLmCghM2SI7DzOZalKq71T/1Sooc2gltxZzwImYo/SVTPNKhId5HHH166iKenlS2I/BlwzObALalDORFPL6mVzC odF8M7jmmHKnr8ma6xz4nugPKfiKoAa48YAvR+m+05nSn96WsrYxconXpft70XppQME7a3QayM8M9b99dKq2yikqUr/44ghnNeWNVeDwLK8= X-Rspamd-Queue-Id: 0963271F30 X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-4.08 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; HAS_REPLYTO(0.00)[Cy.Schubert@cschubert.com]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; HAS_XAW(0.00)[]; MX_GOOD(-0.01)[cached: spqr.komquats.com]; NEURAL_HAM_SHORT(-0.86)[-0.860,0]; RCPT_COUNT_SEVEN(0.00)[7]; FROM_EQ_ENVFROM(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[13.134.59.64.list.dnswl.org : 127.0.5.1]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:6327, ipnet:64.59.128.0/20, country:CA]; SUBJECT_ENDS_QUESTION(1.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[17.125.67.70.zen.spamhaus.org : 127.0.0.11]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; RCVD_COUNT_FIVE(0.00)[5]; REPLYTO_EQ_FROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE(-2.51)[ip: (-6.74), ipnet: 64.59.128.0/20(-3.25), asn: 6327(-2.50), country: CA(-0.09)]; TO_MATCH_ENVRCPT_SOME(0.00)[]; R_SPF_NA(0.00)[]; RCVD_TLS_LAST(0.00)[] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 May 2019 22:55:52 -0000 In message <20190526120809.GB65430@night.db.net>, Diane Bruce writes: > On Sun, May 26, 2019 at 12:02:34PM +0200, Dimitry Andric wrote: > > On 26 May 2019, at 02:20, Yuri wrote: > > > > > > On 2019-05-25 14:30, Dimitry Andric wrote: > > >> But from clang's OSTargets.h file, it looks like 128 bit float support > > >> is never set to enabled for FreeBSD. > > > > > > > > > If clang supports __float128, and clang is FreeBSD's main compiler, shoul > dn't it be enabled on FreeBSD then? > > > > It probably should, but those kinds of things don't just magically appear > > out of thin air: Somebody(TM) has to do the actual work to implement the > > support, test it, maintain it, and so on. Apparently there has not yet > > been any great need for this floating point precision. > > > > Are you volunteering? :) > > I've been slowly looking at it already in my copious spare time. > It's really something we should be supporting. The libgcc_s wrong version > problem is being dealt with by others by linking gfortran with a static > version of libgcc_s (!). (As discussed with Cy at BSDCan 2019) > See https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=208120#c24 > specifically comment 35 My thoughts were that the base libgcc_s should have a different name so as not to be confused with the real libgcc_s from ports. > > > > > -Dimitry > > > > P.S.: I believe one of the first requirements is a header. > > > > - Diane > -- > - db@FreeBSD.org db@db.net http://www.db.net/~db -- Cheers, Cy Schubert FreeBSD UNIX: Web: http://www.FreeBSD.org The need of the many outweighs the greed of the few.