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 98E593858CDA for ; Wed, 11 Oct 2023 09:10:59 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 98E593858CDA Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=linux.ibm.com Received: from pps.filterd (m0353724.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39B99L5a005040; Wed, 11 Oct 2023 09:10:59 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=pp1; bh=9wtI0fwfXNqi+4Obg6WXBotmzO898urK0E+5DAZFBU8=; b=YOczEP0OVRyMjXi3yCulv3MEaePrG/Ger1NolgeunpIwCYYIAkbw5irwAaMCkhrJXFa/ Fv13O1zJ4Zg9PAjW0TGyK94vRKAFaPS9IyBJ0sGeuTzRkjocKhluE0x5MA5m5hZVHVQ4 S9ra3em0b/awVuVc50KPevFBLge+soqe0NABcjGMfFxAvx5lTkeZPctgNC3VVHnkv/0D ozQN94xIcbG87PZl9ap/7SN2zoKmEsB2e4HxQ7lJgPlFU0N//ojwiLb6ht+F7O/JVerD BaPsVnM2bm33Wlb1LT5LTYZT4LFVQWs76eVDsd5kD0pHzOU2ifoJ8UOkwo8An64aC0pZ CQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3tnrtur2v6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Oct 2023 09:10:58 +0000 Received: from m0353724.ppops.net (m0353724.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 39B99YtU005509; Wed, 11 Oct 2023 09:10:58 GMT Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3tnrtur2u8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Oct 2023 09:10:58 +0000 Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 39B6p4lY001147; Wed, 11 Oct 2023 09:10:57 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 3tkkvjxhu7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Oct 2023 09:10:57 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 39B9AsXX43975348 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 11 Oct 2023 09:10:54 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BBA5C20043; Wed, 11 Oct 2023 09:10:54 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3449E2004D; Wed, 11 Oct 2023 09:10:53 +0000 (GMT) Received: from [9.200.103.64] (unknown [9.200.103.64]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 11 Oct 2023 09:10:52 +0000 (GMT) Message-ID: <282d81ec-175b-c61e-469b-3024f3e3f446@linux.ibm.com> Date: Wed, 11 Oct 2023 17:10:51 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH-2, rs6000] Enable vector mode for memory equality compare [PR111449] Content-Language: en-US To: David Edelsohn Cc: gcc-patches , Segher Boessenkool , "Kewen.Lin" , Peter Bergner References: From: HAO CHEN GUI In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: iHCqpK_sW2mNaefvqgpzbMMxE6XbzWfZ X-Proofpoint-ORIG-GUID: 2UoK-QJq6PItbPUZZUeuvxIJdjWvsYy1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-11_06,2023-10-10_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 clxscore=1015 bulkscore=0 impostorscore=0 mlxscore=0 lowpriorityscore=0 spamscore=0 mlxlogscore=871 malwarescore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310110080 X-Spam-Status: No, score=-7.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Hi David, 在 2023/10/10 20:44, David Edelsohn 写道: > Are you stating that although PPC32 supports V16QImode in VSX, the move_by_pieces support also requires TImode, which is not available on PPC32? > Yes. By setting MOVE_MAX_PIECES to 16, TImode compare might be generated as it checks vector mode first then uses scalar mode by default. Thanks Gui Haochen