From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37D89C3A59D for ; Thu, 22 Aug 2019 04:56:24 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 01AB922CE3 for ; Thu, 22 Aug 2019 04:56:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="eV8asxNj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 01AB922CE3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38158 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i0f95-0002u8-6A for qemu-devel@archiver.kernel.org; Thu, 22 Aug 2019 00:56:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52751) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i0f81-0002GV-Ay for qemu-devel@nongnu.org; Thu, 22 Aug 2019 00:55:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i0f7z-0000Pe-MZ for qemu-devel@nongnu.org; Thu, 22 Aug 2019 00:55:16 -0400 Received: from ozlabs.org ([2401:3900:2:1::2]:33223) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i0f7y-0000JM-Gn; Thu, 22 Aug 2019 00:55:15 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 46DXJs00KFz9s4Y; Thu, 22 Aug 2019 14:55:08 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1566449709; bh=YlfC73C68Uf9ruou1DKbCHpB7C5kywdhAwa9G2eLi8M=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=eV8asxNjFeg2eo2MUh0eRGE1I4nVDRhzACINgMrAJcF9rDmbR4sEqVm6o3nHDwpxC 7jhUHvnJQNK5NKkCo2tAxwYhaT7Hd9/luTg90QfjKqeJEBdG+0BGIdu2u3CS7ICkni JF3uQEBox4XzZCrwt0sXHejjuUmgBjEB6G0j3SvU= Date: Thu, 22 Aug 2019 13:02:34 +1000 From: David Gibson To: Peter Maydell Message-ID: <20190822030234.GI20890@umbus> References: <1565983669-6886-1-git-send-email-pc@us.ibm.com> <0cfddc22-92ef-3067-9275-8f4f22ca9805@linaro.org> <20190819062817.GA24503@umbus.fritz.box> <1b486ed4-512f-e5b3-bcd7-9385b689b1cb@us.ibm.com> <20190820073114.GC20890@umbus> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="d6iqOn7HZPWKXx18" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2401:3900:2:1::2 Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH] ppc: Three floating point fixes X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc , Richard Henderson , Paul Clarke , Aleksandar Markovic , QEMU Developers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --d6iqOn7HZPWKXx18 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 20, 2019 at 11:35:29AM +0100, Peter Maydell wrote: > On Tue, 20 Aug 2019 at 08:36, David Gibson = wrote: > > On Mon, Aug 19, 2019 at 12:13:34PM -0500, Paul Clarke wrote: > > > These issues were found while running Glibc's test suite for "math", > > > and there are still a *LOT* of QEMU-only FAILs, so I may be back > > > again with suggested fixes or questions. :-) > > > > That doesn't greatly surprise me, TCG's ppc target stuff is only so-so > > tested, TBH. >=20 > You might also consider using/extending the risu test cases for > ppc64 -- individual checks of each insn against a known-good > implementation can be easier to track down bugs than trying > to figure out why a higher-level test suite like the glibc one > has reported a failure, IME. (There are already risu patterns > for XSCVDPSP and XSCVDPSPN, so I think that bug at least ought > to be found by risu if you run it against the right h/w as > known-good reference...) Oh, I'd love to. I tried running risu once, it failed cryptically and I haven't had time to investigate deeper. --=20 David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. 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