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 B202C3858413 for ; Mon, 4 Apr 2022 11:51:32 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B202C3858413 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 234Be8da029997 for ; Mon, 4 Apr 2022 11:51:32 GMT Received: from ppma06ams.nl.ibm.com (66.31.33a9.ip4.static.sl-reverse.com [169.51.49.102]) by mx0a-001b2d01.pphosted.com with ESMTP id 3f709brs99-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 04 Apr 2022 11:51:32 +0000 Received: from pps.filterd (ppma06ams.nl.ibm.com [127.0.0.1]) by ppma06ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 234BgxU2026471 for ; Mon, 4 Apr 2022 11:51:30 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma06ams.nl.ibm.com with ESMTP id 3f6drhkjc1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 04 Apr 2022 11:51:30 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 234BpR2A30278080 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 4 Apr 2022 11:51:27 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 29CEAA405B; Mon, 4 Apr 2022 11:51:27 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F2D1DA4054; Mon, 4 Apr 2022 11:51:26 +0000 (GMT) Received: from [9.171.81.155] (unknown [9.171.81.155]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Mon, 4 Apr 2022 11:51:26 +0000 (GMT) Message-ID: Date: Mon, 4 Apr 2022 13:51:26 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Content-Language: en-US To: GCC Patches From: Robin Dapp Subject: [PATCH] testsuite: Add -fno-tree-loop-distribute-patterns for s390. Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: lgeoUTFVbqPdn4zq5fispukW8nBuNipG X-Proofpoint-ORIG-GUID: lgeoUTFVbqPdn4zq5fispukW8nBuNipG X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.850,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-04-04_03,2022-03-31_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 adultscore=0 mlxscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 impostorscore=0 bulkscore=0 mlxlogscore=827 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2204040065 X-Spam-Status: No, score=-12.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE 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, 04 Apr 2022 11:51:33 -0000 Hi, in gcc.dg/Wuse-after-free-2.c we try to detect a use-after-free. On s390 the test's while loop is converted into a rawmemchr builtin making it impossible to determine that the pointers *p and *q are related. Therefore, disable the tree loop distribute patterns pass on s390 for this test. OK for trunk? Regards Robin gcc/testsuite/ChangeLog: * gcc.dg/Wuse-after-free-2.c: Add -fno-tree-loop-distribute-patterns for s390*. --- diff --git a/gcc/testsuite/gcc.dg/Wuse-after-free-2.c b/gcc/testsuite/gcc.dg/Wuse-after-free-2.c index 9f7ed4529f0..3a8f690e9f8 100644 --- a/gcc/testsuite/gcc.dg/Wuse-after-free-2.c +++ b/gcc/testsuite/gcc.dg/Wuse-after-free-2.c @@ -1,6 +1,8 @@ /* PR middle-end/104232 - spurious -Wuse-after-free after conditional free { dg-do compile } - { dg-options "-O2 -Wall" } */ + { dg-options "-O2 -Wall" } + { dg-additional-options "-fno-tree-loop-distribute-patterns" { target { s390*-*-* } } } + */ void free (void*); -- 2.35.1