From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 48200 invoked by alias); 24 Jul 2017 08:43:39 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 48190 invoked by uid 89); 24 Jul 2017 08:43:37 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-25.6 required=5.0 tests=AWL,BAYES_00,GIT_PATCH_0,GIT_PATCH_1,GIT_PATCH_2,GIT_PATCH_3,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: EUR01-VE1-obe.outbound.protection.outlook.com Received: from mail-ve1eur01on0056.outbound.protection.outlook.com (HELO EUR01-VE1-obe.outbound.protection.outlook.com) (104.47.1.56) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 24 Jul 2017 08:43:34 +0000 Received: from DB5PR0801MB2742.eurprd08.prod.outlook.com (10.166.176.26) by DB5PR0801MB2744.eurprd08.prod.outlook.com (10.166.176.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1282.10; Mon, 24 Jul 2017 08:43:30 +0000 Received: from DB5PR0801MB2742.eurprd08.prod.outlook.com ([10.166.176.26]) by DB5PR0801MB2742.eurprd08.prod.outlook.com ([10.166.176.26]) with mapi id 15.01.1282.017; Mon, 24 Jul 2017 08:43:30 +0000 From: Bin Cheng To: "gcc-patches@gcc.gnu.org" CC: nd Subject: [PATCH GCC]Make pointer overflow always undefined and remove the macro Date: Mon, 24 Jul 2017 08:43:00 -0000 Message-ID: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Bin.Cheng@arm.com; x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DB5PR0801MB2744;7: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 x-ms-office365-filtering-correlation-id: e89fadb5-5ebd-428c-5451-08d4d2700fa2 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(300000500095)(300135000095)(300000501095)(300135300095)(22001)(300000502095)(300135100095)(2017030254075)(48565401081)(300000503095)(300135400095)(2017052603031)(49563074)(201703131423075)(201703031133081)(300000504095)(300135200095)(300000505095)(300135600095)(300000506095)(300135500095);SRVR:DB5PR0801MB2744; 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received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: multipart/mixed; boundary="_002_DB5PR0801MB2742FA8F5ED390127C663AD3E7BB0DB5PR0801MB2742_" MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Jul 2017 08:43:30.4674 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB5PR0801MB2744 X-IsSubscribed: yes X-SW-Source: 2017-07/txt/msg01393.txt.bz2 --_002_DB5PR0801MB2742FA8F5ED390127C663AD3E7BB0DB5PR0801MB2742_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-length: 855 Hi, This is a followup patch to PR81388's fix. According to Richi, POINTER_TYPE_OVERFLOW_UNDEFINED was added in -fstrict-overflow warning work. Given: A) strict-overflow was removed; B) memory object can not wrap in address space; C) existing code doesn't take it in consideration, as in nowrap_type_p. This patch makes it always true thus removes definition/usage of the macro. Bootstrap and test on x86_64 and AArch64. Is it OK? Thanks, bin 2017-07-20 Bin Cheng * tree.h (POINTER_TYPE_OVERFLOW_UNDEFINED): Delete. * fold-const.c (fold_comparison, fold_binary_loc): Delete use of above macro. * match.pd: Ditto in address comparison pattern. gcc/testsuite/ChangeLog 2017-07-20 Bin Cheng * gcc.dg/no-strict-overflow-7.c: Revise comment and test string. * gcc.dg/tree-ssa/pr81388-1.c: Ditto.= --_002_DB5PR0801MB2742FA8F5ED390127C663AD3E7BB0DB5PR0801MB2742_ Content-Type: text/plain; name="undefined-overflow-pointer-20170721.txt" Content-Description: undefined-overflow-pointer-20170721.txt Content-Disposition: attachment; filename="undefined-overflow-pointer-20170721.txt"; size=5118; creation-date="Mon, 24 Jul 2017 08:40:26 GMT"; modification-date="Mon, 24 Jul 2017 08:40:26 GMT" Content-Transfer-Encoding: base64 Content-length: 6938 ZGlmZiAtLWdpdCBhL2djYy9mb2xkLWNvbnN0LmMgYi9nY2MvZm9sZC1jb25z dC5jCmluZGV4IDFiY2JiYjUuLjc4YmIzMjYgMTAwNjQ0Ci0tLSBhL2djYy9m b2xkLWNvbnN0LmMKKysrIGIvZ2NjL2ZvbGQtY29uc3QuYwpAQCAtODUwNSwx 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