From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by sourceware.org (Postfix) with ESMTPS id F33C4385840E for ; Mon, 22 Nov 2021 21:17:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org F33C4385840E Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 1AMKlDeK011134; Mon, 22 Nov 2021 21:17:46 GMT Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3cgjj3ggk4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Nov 2021 21:17:46 +0000 Received: from m0098419.ppops.net (m0098419.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 1AMKlItJ011213; Mon, 22 Nov 2021 21:17:45 GMT Received: from ppma05wdc.us.ibm.com (1b.90.2fa9.ip4.static.sl-reverse.com [169.47.144.27]) by mx0b-001b2d01.pphosted.com with ESMTP id 3cgjj3ggjw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Nov 2021 21:17:45 +0000 Received: from pps.filterd (ppma05wdc.us.ibm.com [127.0.0.1]) by ppma05wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 1AMLCufD028344; Mon, 22 Nov 2021 21:17:45 GMT Received: from b03cxnp07029.gho.boulder.ibm.com (b03cxnp07029.gho.boulder.ibm.com [9.17.130.16]) by ppma05wdc.us.ibm.com with ESMTP id 3cerna71u2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Nov 2021 21:17:45 +0000 Received: from b03ledav003.gho.boulder.ibm.com (b03ledav003.gho.boulder.ibm.com [9.17.130.234]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 1AMLHi3X61211002 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 22 Nov 2021 21:17:44 GMT Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 02C906A05D; Mon, 22 Nov 2021 21:17:44 +0000 (GMT) Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 638046A047; Mon, 22 Nov 2021 21:17:43 +0000 (GMT) Received: from toto.the-meissners.org (unknown [9.160.125.84]) by b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTPS; Mon, 22 Nov 2021 21:17:43 +0000 (GMT) Date: Mon, 22 Nov 2021 16:17:41 -0500 From: Michael Meissner To: David Edelsohn Cc: Bill Schmidt , Michael Meissner , HAO CHEN GUI , GCC Patches , Segher Boessenkool , Peter Bergner , Will Schmidt Subject: Re: [PATCH 0/3] Add zero cycle move support Message-ID: Mail-Followup-To: Michael Meissner , David Edelsohn , Bill Schmidt , HAO CHEN GUI , GCC Patches , Segher Boessenkool , Peter Bergner , Will Schmidt References: <3a44458a-6682-0bde-0560-fcec5455c386@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: kQx0Be437BvFjL7xUxM2m7GAw6QNwyGE X-Proofpoint-GUID: Afjwv9uZzX52umzg1DAsMdGWsuwaZ5QV X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-11-22_08,2021-11-22_02,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 lowpriorityscore=0 bulkscore=0 mlxlogscore=999 suspectscore=0 impostorscore=0 spamscore=0 priorityscore=1501 clxscore=1015 phishscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2111220106 X-Spam-Status: No, score=-3.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham 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: Mon, 22 Nov 2021 21:17:47 -0000 On Mon, Nov 22, 2021 at 11:09:22AM -0500, David Edelsohn wrote: > On Mon, Nov 22, 2021 at 10:58 AM Bill Schmidt wrote: > And do the absolute addressing for switch tables changes work on AIX? > I thought that Hao Chen only had done the work for PPC64 Linux ELF > syntax with promises of future changes to accommodate AIX as well. In theory it should work on AIX, since the assembler has to support syntax to load the contents of a 64-bit address in memory. In the past, when I measured this (probably in the power8 days), the issue was occasionally having 64-bit loads for the switch tables insted of 32-bit loads and an add instruction meant a slow down for 1-2 benchmarks that were extremely sensitive to cache sizes. -- Michael Meissner, IBM PO Box 98, Ayer, Massachusetts, USA, 01432 email: meissner@linux.ibm.com