From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by sourceware.org (Postfix) with ESMTPS id 76D7538A90AD for ; Tue, 15 Nov 2022 19:05:36 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 76D7538A90AD Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=oracle.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=oracle.com Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2AFHGTmS005432 for ; Tue, 15 Nov 2022 19:05:36 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : content-transfer-encoding : content-type : mime-version; s=corp-2022-7-12; bh=/rQEev/7/+74oRUgV3F00E92mlVjF3M2M2/r4nO4wFk=; b=Tt3vjFUbvPYghyG5ZFYbUYArjYDNmzZRAZE4c15XDHa+itNJT0tsv4Jwz0wuRK7vtARy dmQ3xJ3UL2ZDOlc2kZoCeQPqy2riPO98BB+DmHzmsIwlvwr/sZcGTuBbI0cDMNHmmOF2 Jw7PgkKLSokE+7gfhYGS92ZGRbShQ5PbQStuiijYkOukYDj3Yof8hvqIVV1K5du7oN1Y KZeqV/im1ASVMrdPk1k9LD7r+dq010lFjnFyaiQqz/ejoiFHETvl5Bi64tfMMw1aVE1F /uwW49Js/nDgrVNfs8uMW73m53narnsmJpZh8wAJqM0OSl85VezRAGEfPUwpp77WPMWs qA== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3kv3httkk6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 15 Nov 2022 19:05:35 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.5/8.17.1.5) with ESMTP id 2AFI9rjo001358 for ; Tue, 15 Nov 2022 19:05:34 GMT Received: from nam02-sn1-obe.outbound.protection.outlook.com (mail-sn1nam02lp2044.outbound.protection.outlook.com [104.47.57.44]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3kuk1w3bw6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 15 Nov 2022 19:05:34 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=kLbqIUCakZ7kpeWuaXNaUKYJt9GQNADzy0+l8rBuASlQGjGLtwDX/ORT6YuAZGy5CEQDdESEflL8BNEo7RyfxYWC3lNbfBKqJJBImVI3xA0HYyR1PgwFBKojgSMA4xrMw3j6e5JxcZLhNm0+s3uV1QHZ8Xj/lC5K/YnJs5JgH1bScvdQDSRZ9p9XbBFBjwKhrDtsfifGhuUgSHFmE3GS0hA4ZWSKvPtvGMxzbIjRFOORY9dy0y9116+gDMG6Ea5U3eWtaJOOQ8UUgsG6kqSnHFrtUsYIIuF7ucuR8k1j2P7nUoB7F5kbzBvPBav7Q6xKa9N0eo0/nWAF4VWZ7ydRgw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=/rQEev/7/+74oRUgV3F00E92mlVjF3M2M2/r4nO4wFk=; b=GuVETHEB/ioeEka31RefrK/GAdQkfiQJKjtkhw8NiNpKS/ojRsL44pvOHxmimhvIl4mQY54ntC7FoNVlfZpob5LasVxCFSSCQ78tdtGXeYS7GWPR8uZ9Yan9pbhalCKxXeIs53URUxYlDhUqfxWbtb8x5EMrxCX7ljT8R6QJWpKr80Vlzh9nmvFXtm+gjhFqXJPU4HkFl1xBk7PYF+fNyn2OA5kIcmlTSgkc740xY4AILyVGJdsCgUav1ayp1RJAutq+ZuaeHa8jZoru5viy8zLI7QbjNr4R57RSBNFOW7KuQsLOemCfenELOBGB6eDmFhiWlMaorBxfhlhRybj/GQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=/rQEev/7/+74oRUgV3F00E92mlVjF3M2M2/r4nO4wFk=; b=MrKSPHhOHMSE7HHe4zd0XNomURS4WK9kMHOUdzOoshlp44W2sT54ez4exxbhvE3cIHQd4K5csD1rs3dY7CYNPKD2hph7S27vkOkgP7+o4dClu4K7gNDaiud56b2GuwcIWHgXaV1QlpxK1X2RVmtavJRgUe2/KbWbMy+zE22DJQ4= Received: from MN2PR10MB3213.namprd10.prod.outlook.com (2603:10b6:208:131::33) by BN0PR10MB4983.namprd10.prod.outlook.com (2603:10b6:408:121::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5813.18; Tue, 15 Nov 2022 19:05:32 +0000 Received: from MN2PR10MB3213.namprd10.prod.outlook.com ([fe80::dd41:a422:5763:8848]) by MN2PR10MB3213.namprd10.prod.outlook.com ([fe80::dd41:a422:5763:8848%7]) with mapi id 15.20.5813.017; Tue, 15 Nov 2022 19:05:32 +0000 From: David Faust To: gcc-patches@gcc.gnu.org Subject: [committed] bpf: avoid possible use of uninitialized variable Date: Tue, 15 Nov 2022 11:05:23 -0800 Message-Id: <20221115190523.23018-1-david.faust@oracle.com> X-Mailer: git-send-email 2.38.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SA0PR11CA0191.namprd11.prod.outlook.com (2603:10b6:806:1bc::16) To MN2PR10MB3213.namprd10.prod.outlook.com (2603:10b6:208:131::33) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN2PR10MB3213:EE_|BN0PR10MB4983:EE_ X-MS-Office365-Filtering-Correlation-Id: 77092dbd-daf8-45ce-cab6-08dac73c5ebe X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MN2PR10MB3213.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(366004)(396003)(376002)(136003)(346002)(39860400002)(451199015)(44832011)(5660300002)(41300700001)(2906002)(8676002)(66476007)(66556008)(66946007)(316002)(6486002)(6916009)(6666004)(6506007)(86362001)(83380400001)(186003)(2616005)(478600001)(1076003)(26005)(6512007)(8936002)(36756003)(38100700002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?KWB8QkpJx91aD3j2Lpgjg15ZCCWqatQSf7aJmx3Pm+RbEQkKr6P1/H0OvWDT?= =?us-ascii?Q?dMSSHSwrOrDmZxndWm0J096UVVF+EpUdJU0a8FgCeBVTaXBNRVjWAzqjyrE9?= =?us-ascii?Q?H4FQ4ROckgWpXqn+s4I5pprVrQc6Cg81ExpilMXEy3Yqi1giCYMSnoWMfC6w?= =?us-ascii?Q?K0k0le3zXFl+d0LkPWIsHPs0F46BVg8TbQLkkWZ0DDAoTDRWKcZHnVrjU1YS?= =?us-ascii?Q?LJqxkREBVcKgsGOsyEDsHJp4FKnl0wLMgfhJlL5ZAnyRrR0iRF9jbX+rdgoA?= =?us-ascii?Q?cTQ/CU5YFwku4PbaE+BZplv/pF6UyGmuwXYhRxaWsSt+rnaM7as4QmGoE5vd?= =?us-ascii?Q?eiIS7dsd8J5gxBBL3Os+xyozlyZNlKrSss164BOCJoVmUHvftFno21iYwp2Y?= =?us-ascii?Q?ZyFEQ8K10ZOAs85Te0U2A1Ga3vgQLrvJyzzRfgNBCbJSyYe8UG6ZC4HyHvWj?= =?us-ascii?Q?N9aTQ7LIADjwWj/r4hDS+Op0R6j1nsih8v0HTXxI3timPxAIyCqwsR4+PKBY?= =?us-ascii?Q?BOW9lbcN7SH+RfHvrGBBO1nncD8276E9DOJ6QKijuLH1BAzp9P9BiThVszgp?= =?us-ascii?Q?JneKn8c+dcbJC6r5akk/QgFL049xBJcx9qwZsB2mzOGSLR6BD65dLlh019gT?= =?us-ascii?Q?vH4JjOHImH2v4aX1x9MMiO097VVWXx6dX+R9RoydoE6P+ZGIcvHl/+0l/SRn?= =?us-ascii?Q?nd+gK6isDifClqQDysjb6SBQ2jc7wAYPqAY+qEwP63UBSJvBZQFKAojV9pAg?= =?us-ascii?Q?FrNhBH6IIIB6x9CCz7oR5dUfxjc+wM9/XiA1yp9nt51fxahTj5iqchiSvfvM?= =?us-ascii?Q?aKSAzm1VusNTimFVLqV4OL76WW4nW2gL0qe84MbNABfuu7S8Fyh5tr1JBYCP?= =?us-ascii?Q?rYJUEVW6sG1kefFgRbOHrAiqOgu1toCi4f4Ok5L4mmjgcKlNB0weldV72IPF?= =?us-ascii?Q?p9697FZF3AthG1TEODOTe7Wq+dwl9rVKh+GpOiL1Yyi4k7vAYA3BKk4I/tIa?= =?us-ascii?Q?HRKq2CgEw/mEO0aIyHtD8wilX+PK2Rst+0Ohi9XtXOPZ3qYYbTBJkLd7suDB?= =?us-ascii?Q?FchnBLiq7Kaj9lwXyGMBVe37Hy30ymQFFoWHCmEPRu1lEq1kQIvqacG7Ivle?= =?us-ascii?Q?QrwOSxBgcFbk4qWeZn+6kkFC+ozr1gwsQCDG4DK3VXiRf61L0nHkw3tnuEfQ?= =?us-ascii?Q?40G7rv40gg8g77LdJMf98y3au69O7X7FvlS4AZhOUcmhIvAiKJOQc9hvonwB?= =?us-ascii?Q?VatOY9e82SN/viefN5PBM+l0H+CMv7ilpMBJD3jMZCTep0/Dlh0Uc8Uwcue5?= =?us-ascii?Q?aV1uq2GYTBAIEB01bAhkh0du/ihFlSbQcr/NLIm+niZwnNnI3Dbxo0kXTHca?= =?us-ascii?Q?rBY8JuSQqk3MmbD5skIuzzHOHpGcxESWKJ4kOZN/y0gv7u3yTOB8K0v0VLzf?= =?us-ascii?Q?SaPZkJ5GErhF6nuEZwaBdDENKB/cEL8E+7Fe2r4SysxA8GLgiBP+52ycNSv/?= =?us-ascii?Q?hZWrzm4asiIn8L6WbGxa47kSULzo32AI6N+1lb6bT1uQgqJxVm3y5HVePUi2?= =?us-ascii?Q?+AJfpaYNpHQCZLMcUel70QsSQeulvi56T8L+mx3p?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 77092dbd-daf8-45ce-cab6-08dac73c5ebe X-MS-Exchange-CrossTenant-AuthSource: MN2PR10MB3213.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Nov 2022 19:05:32.8811 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: MqQRkTGVAHatCHYh4Lt5k5TF4A9XZi/FqjtYFjZOWYMsagv+wfwYBAmV4aLRU4ga13c5jbCI95JAhF2+r4FFdQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN0PR10MB4983 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-15_08,2022-11-15_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 spamscore=0 mlxlogscore=999 phishscore=0 mlxscore=0 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211150130 X-Proofpoint-GUID: 3_3rUlgy7XIFdCME9e1dFSLXYcoAhVCf X-Proofpoint-ORIG-GUID: 3_3rUlgy7XIFdCME9e1dFSLXYcoAhVCf X-Spam-Status: No, score=-13.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,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: Fix a maybe-uninitialized warning introduced in commit: 068baae1864 bpf: add preserve_field_info builtin Thanks to Jan-Benedict Glaw for pointing this out. Tested on bpf-unknown-none, committed as obvious. gcc/ * config/bpf/bpf.cc (bpf_expand_builtin): Avoid use of uninitialized variable in error case. --- gcc/config/bpf/bpf.cc | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/gcc/config/bpf/bpf.cc b/gcc/config/bpf/bpf.cc index 16af2412bf6..51e46955015 100644 --- a/gcc/config/bpf/bpf.cc +++ b/gcc/config/bpf/bpf.cc @@ -1254,11 +1254,14 @@ bpf_expand_builtin (tree exp, rtx target ATTRIBUTE_UNUSED, /* A resolved overloaded __builtin_preserve_field_info. */ tree src = CALL_EXPR_ARG (exp, 0); tree kind_tree = CALL_EXPR_ARG (exp, 1); - unsigned HOST_WIDE_INT kind_val; + unsigned HOST_WIDE_INT kind_val = 0; if (tree_fits_uhwi_p (kind_tree)) kind_val = tree_to_uhwi (kind_tree); else - error ("invalid argument to built-in function"); + { + error ("invalid argument to built-in function"); + return expand_normal (error_mark_node); + } enum btf_core_reloc_kind kind = (enum btf_core_reloc_kind) kind_val; -- 2.37.2