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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 750B5C433EF for ; Wed, 15 Dec 2021 17:45:53 +0000 (UTC) Received: from localhost ([::1]:54956 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mxYLg-0003l2-Kw for qemu-devel@archiver.kernel.org; Wed, 15 Dec 2021 12:45:52 -0500 Received: from eggs.gnu.org ([209.51.188.92]:38670) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxXhX-0003G9-Fj; Wed, 15 Dec 2021 12:04:23 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:16834) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mxXhV-0004Yk-IZ; Wed, 15 Dec 2021 12:04:22 -0500 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 1BFGfaQO026377; Wed, 15 Dec 2021 17:04:16 GMT Received: from ppma01fra.de.ibm.com (46.49.7a9f.ip4.static.sl-reverse.com [159.122.73.70]) by mx0a-001b2d01.pphosted.com with ESMTP id 3cygtrwvks-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 Dec 2021 17:04:16 +0000 Received: from pps.filterd (ppma01fra.de.ibm.com [127.0.0.1]) by ppma01fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 1BFH42Vr028824; Wed, 15 Dec 2021 17:04:13 GMT Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by ppma01fra.de.ibm.com with ESMTP id 3cy7k375tu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 Dec 2021 17:04:13 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 1BFH4BfP34996576 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 15 Dec 2021 17:04:11 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 04085A406A; Wed, 15 Dec 2021 17:04:11 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C8270A4065; Wed, 15 Dec 2021 17:04:10 +0000 (GMT) Received: from smtp.tlslab.ibm.com (unknown [9.101.4.1]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with SMTP; Wed, 15 Dec 2021 17:04:10 +0000 (GMT) Received: from yukon.home (unknown [9.171.19.61]) by smtp.tlslab.ibm.com (Postfix) with ESMTP id 1D0F7220247; Wed, 15 Dec 2021 18:04:10 +0100 (CET) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-ppc@nongnu.org, qemu-devel@nongnu.org Subject: [PULL 023/102] softfloat: Add flags specific to Inf / Inf and 0 / 0 Date: Wed, 15 Dec 2021 18:02:38 +0100 Message-Id: <20211215170357.321643-11-clg@kaod.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211215170357.321643-1-clg@kaod.org> References: <20211215165847.321042-1-clg@kaod.org> <20211215170357.321643-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: x6JyYfYDEi4F5pnqM_Gn8tTNuz1c5tol X-Proofpoint-GUID: x6JyYfYDEi4F5pnqM_Gn8tTNuz1c5tol X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-15_10,2021-12-14_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=715 spamscore=0 phishscore=0 suspectscore=0 clxscore=1034 bulkscore=0 adultscore=0 malwarescore=0 mlxscore=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112150098 Received-SPF: softfail client-ip=148.163.156.1; envelope-from=clg@kaod.org; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -11 X-Spam_score: -1.2 X-Spam_bar: - X-Spam_report: (-1.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Richard Henderson , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson PowerPC has these flags, and it's easier to compute them here than after the fact. Signed-off-by: Richard Henderson Message-Id: <20211119160502.17432-5-richard.henderson@linaro.org> Signed-off-by: C=C3=A9dric Le Goater --- include/fpu/softfloat-types.h | 2 ++ fpu/softfloat-parts.c.inc | 16 +++++++++++----- 2 files changed, 13 insertions(+), 5 deletions(-) diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.= h index 56b4cf783544..5a9671e564c6 100644 --- a/include/fpu/softfloat-types.h +++ b/include/fpu/softfloat-types.h @@ -154,6 +154,8 @@ enum { float_flag_output_denormal =3D 0x0040, float_flag_invalid_isi =3D 0x0080, /* inf - inf */ float_flag_invalid_imz =3D 0x0100, /* inf * 0 */ + float_flag_invalid_idi =3D 0x0200, /* inf / inf */ + float_flag_invalid_zdz =3D 0x0400, /* 0 / 0 */ }; =20 /* diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index 3ed793347b18..b8563cd2df8d 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -590,11 +590,13 @@ static FloatPartsN *partsN(div)(FloatPartsN *a, Flo= atPartsN *b, } =20 /* 0/0 or Inf/Inf =3D> NaN */ - if (unlikely(ab_mask =3D=3D float_cmask_zero) || - unlikely(ab_mask =3D=3D float_cmask_inf)) { - float_raise(float_flag_invalid, s); - parts_default_nan(a, s); - return a; + if (unlikely(ab_mask =3D=3D float_cmask_zero)) { + float_raise(float_flag_invalid | float_flag_invalid_zdz, s); + goto d_nan; + } + if (unlikely(ab_mask =3D=3D float_cmask_inf)) { + float_raise(float_flag_invalid | float_flag_invalid_idi, s); + goto d_nan; } =20 /* All the NaN cases */ @@ -625,6 +627,10 @@ static FloatPartsN *partsN(div)(FloatPartsN *a, Floa= tPartsN *b, float_raise(float_flag_divbyzero, s); a->cls =3D float_class_inf; return a; + + d_nan: + parts_default_nan(a, s); + return a; } =20 /* --=20 2.31.1