From patchwork Sat Feb 4 02:17:16 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Ricardo Ziviani X-Patchwork-Id: 723982 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3vFcqv3hSdz9s70 for ; Sat, 4 Feb 2017 13:19:23 +1100 (AEDT) Received: from localhost ([::1]:37660 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cZpwe-0004td-Vw for incoming@patchwork.ozlabs.org; Fri, 03 Feb 2017 21:19:21 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42204) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cZpvA-0003nr-2F for qemu-devel@nongnu.org; Fri, 03 Feb 2017 21:17:49 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cZpv6-0000Bw-Ts for qemu-devel@nongnu.org; Fri, 03 Feb 2017 21:17:48 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:45242) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cZpv6-0000BU-Kt for qemu-devel@nongnu.org; Fri, 03 Feb 2017 21:17:44 -0500 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v1428fH6009187 for ; Fri, 3 Feb 2017 21:17:41 -0500 Received: from e24smtp05.br.ibm.com (e24smtp05.br.ibm.com [32.104.18.26]) by mx0a-001b2d01.pphosted.com with ESMTP id 28d33umh4e-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 03 Feb 2017 21:17:41 -0500 Received: from localhost by e24smtp05.br.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Sat, 4 Feb 2017 00:17:35 -0200 Received: from d24relay04.br.ibm.com (d24relay04.br.ibm.com [9.18.232.146]) by d24dlp01.br.ibm.com (Postfix) with ESMTP id E8ED9352005F for ; Fri, 3 Feb 2017 21:17:01 -0500 (EST) Received: from d24av05.br.ibm.com (d24av05.br.ibm.com [9.18.232.44]) by d24relay04.br.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v142HYEQ26149056 for ; Sat, 4 Feb 2017 00:17:34 -0200 Received: from d24av05.br.ibm.com (localhost [127.0.0.1]) by d24av05.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v142HYqC011990 for ; Sat, 4 Feb 2017 00:17:34 -0200 Received: from pacoca.ibm.com ([9.85.131.14]) by d24av05.br.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v142HSw3011933; Sat, 4 Feb 2017 00:17:32 -0200 From: Jose Ricardo Ziviani To: qemu-devel@nongnu.org Date: Sat, 4 Feb 2017 00:17:16 -0200 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1486174642-14883-1-git-send-email-joserz@linux.vnet.ibm.com> References: <1486174642-14883-1-git-send-email-joserz@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17020402-0032-0000-0000-0000053B2721 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17020402-0033-0000-0000-000011BD4F18 Message-Id: <1486174642-14883-2-git-send-email-joserz@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-04_01:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1702040023 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH Risu 1/7] risu_ppc64le: improve xsrqpi[x] and xsrqpxp instructions X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, nikunj@linux.vnet.ibm.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" New constraint added to the referred instructions in order to avoid generation of reserved (not used today) rounding modes for floating point operations. Signed-off-by: Jose Ricardo Ziviani --- ppc64.risu | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/ppc64.risu b/ppc64.risu index 7b2bfe3..f7fa3f4 100644 --- a/ppc64.risu +++ b/ppc64.risu @@ -3019,12 +3019,15 @@ XSREDP PPC64LE 111100 t:5 00000 b:5 00101 1010 bx:1 tx:1 XSRESP PPC64LE 111100 t:5 00000 b:5 00001 1010 bx:1 tx:1 # format:Z23 book:I page:636 v3.0 xsrqpi[x] VSX Scalar Round QP to Integral -XSRQPI PPC64LE 111111 vrt:5 0000 r:1 vrb:5 rmc:2 000001010 +XSRQPI PPC64LE 111111 vrt:5 0000 r:1 vrb:5 rmc:2 000001010 \ +!constraints { ($r == 0 && ($rmc != 1 && $rmc != 2)) || $r == 1; } # format:Z23 book:I page:636 v3.0 xsrqpi[x] VSX Scalar Round QP to Integral -XSRQPIx PPC64LE 111111 vrt:5 0000 r:1 vrb:5 rmc:2 000001011 +XSRQPIx PPC64LE 111111 vrt:5 0000 r:1 vrb:5 rmc:2 000001011 \ +!constraints { ($r == 0 && ($rmc != 1 && $rmc != 2)) || $r == 1; } # format:Z23 book:I page:638 v3.0 xsrqpxp VSX Scalar Round QP to XP -XSRQPXP PPC64LE 111111 vrt:5 0000 r:1 vrb:5 rmc:2 001001010 +XSRQPXP PPC64LE 111111 vrt:5 0000 r:1 vrb:5 rmc:2 001001010 \ +!constraints { ($r == 0 && ($rmc != 1 && $rmc != 2)) || $r == 1; } # format:XX2 book:I page:640 v2.07 xsrsp VSX Scalar Round DP to SP XSRSP PPC64LE 111100 t:5 00000 b:5 10001 1001 bx:1 tx:1