From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by sourceware.org (Postfix) with ESMTPS id 99C10385842B for ; Fri, 27 Aug 2021 02:21:30 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 99C10385842B Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 17R26J6j182197; Thu, 26 Aug 2021 22:21:30 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3apn4dtgv4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 26 Aug 2021 22:21:29 -0400 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 17R2LTD1043936; Thu, 26 Aug 2021 22:21:29 -0400 Received: from ppma03wdc.us.ibm.com (ba.79.3fa9.ip4.static.sl-reverse.com [169.63.121.186]) by mx0a-001b2d01.pphosted.com with ESMTP id 3apn4dtguw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 26 Aug 2021 22:21:29 -0400 Received: from pps.filterd (ppma03wdc.us.ibm.com [127.0.0.1]) by ppma03wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 17R27wOH020530; Fri, 27 Aug 2021 02:21:28 GMT Received: from b03cxnp08027.gho.boulder.ibm.com (b03cxnp08027.gho.boulder.ibm.com [9.17.130.19]) by ppma03wdc.us.ibm.com with ESMTP id 3ajs4ew16m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 27 Aug 2021 02:21:28 +0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 17R2LRX619661544 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 27 Aug 2021 02:21:27 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1AD59136059; Fri, 27 Aug 2021 02:21:27 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 31EEB13604F; Fri, 27 Aug 2021 02:21:26 +0000 (GMT) Received: from toto.the-meissners.org (unknown [9.160.31.187]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTPS; Fri, 27 Aug 2021 02:21:25 +0000 (GMT) Date: Thu, 26 Aug 2021 22:21:21 -0400 From: Michael Meissner To: Michael Meissner , will schmidt , gcc-patches@gcc.gnu.org, Segher Boessenkool , David Edelsohn , Bill Schmidt , Peter Bergner Subject: Re: [PATCH] Generate XXSPLTIDP on power10. Message-ID: Mail-Followup-To: Michael Meissner , will schmidt , gcc-patches@gcc.gnu.org, Segher Boessenkool , David Edelsohn , Bill Schmidt , Peter Bergner References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 4Lz5bia3QZNOG6MYttn9Pm-SVGHdRVNJ X-Proofpoint-ORIG-GUID: y6uZdn285DlDvf0dFGiMVzizgfhp67iX X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-08-26_05:2021-08-26, 2021-08-26 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1015 mlxlogscore=999 mlxscore=0 priorityscore=1501 phishscore=0 adultscore=0 spamscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108270009 X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, KAM_MANYTO, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Aug 2021 02:21:31 -0000 On Thu, Aug 26, 2021 at 05:28:42PM -0400, Michael Meissner wrote: > I have patches for adding XXSPLTI32DX, but so far, I'm not sure whether it is a > win or not. This has the xxsplti32dx_operand predicate and the > xxsplti32dx_constant_p internal function and a separate constraint ("eD") for > matching it. If xxspltidp_constant_p returns false, then xxsplti32dx_operand > and xxsplti32dx_constant_p return false. I.e. it only returns true if we > should use XXSPLTI32DX instead of some other instruction. Whoops in re-reading that paragraph, I mixed up the return value. The sentence should have read: If xxspltidp_constant_p (and xxspltidp_operand) returns "true" then xxsplti32dx_constant_p (and xxsplti32dx_operand) would return false. -- Michael Meissner, IBM IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA email: meissner@linux.ibm.com, phone: +1 (978) 899-4797