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 26A983858D35 for ; Fri, 21 Jul 2023 10:13:58 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 26A983858D35 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux.vnet.ibm.com Authentication-Results: sourceware.org; spf=none smtp.mailfrom=linux.vnet.ibm.com Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36L9asD3019783 for ; Fri, 21 Jul 2023 10:13:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=message-id : date : mime-version : to : cc : from : subject : content-type : content-transfer-encoding; s=pp1; bh=QAAu26RnWEWkWfFgDw0+UUlBc6w1RAwho0Z6PAKahx8=; b=RxqGM6ero0DuQAJ29PQU1JZuVU5IXannJpIWFTYRmsf9LScMCQ6UbyCwIMY6JowG1LBd 4/51gztIongNGlSVkUVvdLAJ7h4+cJBGWMxQyEjf1mgF5wwl0UbJ2Ek0DOPMGS5hWceH IE2q65h+kn8avGURz7j0Fc9+1RhYJUGLtVB/U0PvaUGoSLQYiTzIahh4qLtNF4jPzTHJ U/Za9DwAtultTuJr5+3ZBfXYsQF9cHvzn5tGbCKJWfQTuA7UvVsNplin3FxyfbhKb9uC DFPfd5p9CVm4Zbpo104jP2dZTJi/GCq9B+ovsch9bqAFCy90gQgq8/hsMe3I8I70xQlD wQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3ryc7g7t00-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 21 Jul 2023 10:13:56 +0000 Received: from m0356517.ppops.net (m0356517.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 36LA4Odj032527 for ; Fri, 21 Jul 2023 10:13:56 GMT Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3ryc7g7syr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 21 Jul 2023 10:13:56 +0000 Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 36L95SJH004179; Fri, 21 Jul 2023 10:13:55 GMT Received: from smtprelay02.dal12v.mail.ibm.com ([172.16.1.4]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 3rv8g1ecrp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 21 Jul 2023 10:13:55 +0000 Received: from smtpav04.dal12v.mail.ibm.com (smtpav04.dal12v.mail.ibm.com [10.241.53.103]) by smtprelay02.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 36LADshm36110640 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 21 Jul 2023 10:13:54 GMT Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A8C2B58056; Fri, 21 Jul 2023 10:13:54 +0000 (GMT) Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5287558052; Fri, 21 Jul 2023 10:13:53 +0000 (GMT) Received: from [9.109.195.200] (unknown [9.109.195.200]) by smtpav04.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 21 Jul 2023 10:13:53 +0000 (GMT) Message-ID: <202aea78-0a16-c78b-206c-824ba7bab65d@linux.vnet.ibm.com> Date: Fri, 21 Jul 2023 15:43:51 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Content-Language: en-US To: GCC Patches Cc: vmakarov@redhat.com, Peter Bergner From: Surya Kumari Jangala Subject: [PATCH] ira: update allocated_hardreg_p[] in improve_allocation() [PR110254] Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: YKYa1nii6jBG2RP38IWppYO4PSFmrgHI X-Proofpoint-ORIG-GUID: tlyN5Cwenu-zJsuB5yyuw8cuWGVxeNle X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-21_06,2023-07-20_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 mlxlogscore=821 malwarescore=0 priorityscore=1501 suspectscore=0 adultscore=0 mlxscore=0 spamscore=0 clxscore=1011 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307210090 X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE 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: The improve_allocation() routine does not update the allocated_hardreg_p[] array after an allocno is assigned a register. If the register chosen in improve_allocation() is one that already has been assigned to a conflicting allocno, then allocated_hardreg_p[] already has the corresponding bit set to TRUE, so nothing needs to be done. But improve_allocation() can also choose a register that has not been assigned to a conflicting allocno, and also has not been assigned to any other allocno. In this case, allocated_hardreg_p[] has to be updated. 2023-07-21 Surya Kumari Jangala gcc/ PR rtl-optimization/PR110254 * ira-color.cc (improve_allocation): Update array --- diff --git a/gcc/ira-color.cc b/gcc/ira-color.cc index 1fb2958bddd..5807d6d26f6 100644 --- a/gcc/ira-color.cc +++ b/gcc/ira-color.cc @@ -3340,6 +3340,10 @@ improve_allocation (void) } /* Assign the best chosen hard register to A. */ ALLOCNO_HARD_REGNO (a) = best; + + for (j = nregs - 1; j >= 0; j--) + allocated_hardreg_p[best + j] = true; + if (internal_flag_ira_verbose > 2 && ira_dump_file != NULL) fprintf (ira_dump_file, "Assigning %d to a%dr%d\n", best, ALLOCNO_NUM (a), ALLOCNO_REGNO (a));