From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by sourceware.org (Postfix) with ESMTPS id 6833F3858004 for ; Fri, 2 Jul 2021 02:28:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 6833F3858004 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 16223Ckb036569 for ; Thu, 1 Jul 2021 22:28:30 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 39hk3b9t3q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 01 Jul 2021 22:28:30 -0400 Received: from m0098393.ppops.net (m0098393.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 16223bI2037217 for ; Thu, 1 Jul 2021 22:28:30 -0400 Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 39hk3b9t38-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Jul 2021 22:28:29 -0400 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 1622MCiR016972; Fri, 2 Jul 2021 02:28:27 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma03ams.nl.ibm.com with ESMTP id 39duv8ankf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 02 Jul 2021 02:28:27 +0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 1622SPHb33685900 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 2 Jul 2021 02:28:25 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 20960AE05A; Fri, 2 Jul 2021 02:28:25 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 95353AE055; Fri, 2 Jul 2021 02:28:23 +0000 (GMT) Received: from KewenLins-MacBook-Pro.local (unknown [9.200.53.103]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 2 Jul 2021 02:28:23 +0000 (GMT) Subject: [PATCH] i386: Disable param ira-consider-dup-in-all-alts [PR100328] To: gcc-patches@gcc.gnu.org References: <8a5fd52a-1cc9-6563-ee6c-f345b489654c@linux.ibm.com> <46f79a40-6927-35f3-6eda-f49d1faccbc9@redhat.com> <0f75aadc-c389-ad37-3383-3be5b093c3e5@linux.ibm.com> From: "Kewen.Lin" Message-ID: <1f49b5b4-51a0-2695-c797-233d3ffe73c0@linux.ibm.com> Date: Fri, 2 Jul 2021 10:28:22 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 In-Reply-To: <0f75aadc-c389-ad37-3383-3be5b093c3e5@linux.ibm.com> Content-Type: multipart/mixed; boundary="------------832542B38A654CD60677FCF5" Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: ePgx27F9lPKRd8Vc1dQcn3Yuzab1tt1X X-Proofpoint-GUID: 05qc6Wf6_OM6HxdsotUFxJrnQ_Q-RovD X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-07-01_12:2021-07-01, 2021-07-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 adultscore=0 malwarescore=0 mlxlogscore=999 lowpriorityscore=0 spamscore=0 mlxscore=0 suspectscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2107020009 X-Spam-Status: No, score=-11.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, 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: Fri, 02 Jul 2021 02:28:32 -0000 This is a multi-part message in MIME format. --------------832542B38A654CD60677FCF5 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hi, With Hongtao's help (thanks), we got the SPEC2017 performance evaluation result on x86_64 (see [1]), this new parameter ira-consider-dup-in-all-alts has negative effects on i386. Since we observed it can benefit ports aarch64 and rs6000, the param is set as 1 by default, this patch is to disable it on i386 explicitly to avoid performance degradation there. Bootstrapped & regtested on x86_64-redhat-linux. Is it ok for trunk? BR, Kewen [1] https://gcc.gnu.org/pipermail/gcc-patches/2021-June/573986.html ----- --------------832542B38A654CD60677FCF5 Content-Type: text/plain; charset=UTF-8; x-mac-type="0"; x-mac-creator="0"; name="0002-i386-Disable-param-ira-consider-dup-in-all-alts-PR10.patch" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename*0="0002-i386-Disable-param-ira-consider-dup-in-all-alts-PR10.pa"; filename*1="tch" RnJvbSA0NTdjN2IzMDMyZTIwZWEwZjlkOGM4ZDI5ODBlN2RhNmRhZWVkYjEzIE1vbiBTZXAg MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBLZXdlbiBMaW4gPGxpbmt3QGxpbnV4LmlibS5jb20+ CkRhdGU6IE1vbiwgMjEgSnVuIDIwMjEgMjI6NTE6MDkgLTA1MDAKU3ViamVjdDogW1BBVENI IDIvMl0gaTM4NjogRGlzYWJsZSBwYXJhbSBpcmEtY29uc2lkZXItZHVwLWluLWFsbC1hbHRz CiBbUFIxMDAzMjhdCgpXaXRoIEhvbmd0YW8ncyBTUEVDMjAxNyBwZXJmb3JtYW5jZSBldmFs dWF0aW9uIHJlc3VsdCBoZXJlOgpodHRwczovL2djYy5nbnUub3JnL3BpcGVybWFpbC9nY2Mt cGF0Y2hlcy8yMDIxLUp1bmUvNTczOTg2Lmh0bWwKdGhpcyBuZXcgcGFyYW1ldGVyIGlyYS1j b25zaWRlci1kdXAtaW4tYWxsLWFsdHMgaGFzIG5lZ2F0aXZlCmVmZmVjdHMgb24gaTM4Niwg dGhpcyBwYXRjaCBpcyB0byBkaXNhYmxlIGl0IGV4cGxpY2l0bHkgb24KaTM4Ni4KCkJvb3Rz dHJhcHBlZCAmIHJlZ3Rlc3RlZCBvbiB4ODZfNjQtcmVkaGF0LWxpbnV4LgoKZ2NjL0NoYW5n ZUxvZzoKCglQUiBydGwtb3B0aW1pemF0aW9uLzEwMDMyOAoJKiBjb25maWcvaTM4Ni9pMzg2 LW9wdGlvbnMuYyAoaXg4Nl9vcHRpb25fb3ZlcnJpZGVfaW50ZXJuYWwpOgoJU2V0IHBhcmFt X2lyYV9jb25zaWRlcl9kdXBfaW5fYWxsX2FsdHMgdG8gMC4KLS0tCiBnY2MvY29uZmlnL2kz ODYvaTM4Ni1vcHRpb25zLmMgfCAyICsrCiAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25z KCspCgpkaWZmIC0tZ2l0IGEvZ2NjL2NvbmZpZy9pMzg2L2kzODYtb3B0aW9ucy5jIGIvZ2Nj L2NvbmZpZy9pMzg2L2kzODYtb3B0aW9ucy5jCmluZGV4IDBlY2NiNTQ5YzIyLi43YTM1YzQ2 OGRhMyAxMDA2NDQKLS0tIGEvZ2NjL2NvbmZpZy9pMzg2L2kzODYtb3B0aW9ucy5jCisrKyBi L2djYy9jb25maWcvaTM4Ni9pMzg2LW9wdGlvbnMuYwpAQCAtMjgzMSw2ICsyODMxLDggQEAg aXg4Nl9vcHRpb25fb3ZlcnJpZGVfaW50ZXJuYWwgKGJvb2wgbWFpbl9hcmdzX3AsCiAgIGlm IChpeDg2X2luZGlyZWN0X2JyYW5jaCAhPSBpbmRpcmVjdF9icmFuY2hfa2VlcCkKICAgICBT RVRfT1BUSU9OX0lGX1VOU0VUIChvcHRzLCBvcHRzX3NldCwgZmxhZ19qdW1wX3RhYmxlcywg MCk7CiAKKyAgU0VUX09QVElPTl9JRl9VTlNFVCAob3B0cywgb3B0c19zZXQsIHBhcmFtX2ly YV9jb25zaWRlcl9kdXBfaW5fYWxsX2FsdHMsIDApOworCiAgIHJldHVybiB0cnVlOwogfQog Ci0tIAoyLjE3LjEKCg== --------------832542B38A654CD60677FCF5--