From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by sourceware.org (Postfix) with ESMTPS id 157863858C27; Wed, 17 Nov 2021 03:19:07 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 157863858C27 X-IronPort-AV: E=McAfee;i="6200,9189,10170"; a="297294484" X-IronPort-AV: E=Sophos;i="5.87,240,1631602800"; d="scan'208";a="297294484" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Nov 2021 19:19:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,240,1631602800"; d="scan'208";a="604563786" Received: from scymds01.sc.intel.com ([10.148.94.138]) by orsmga004.jf.intel.com with ESMTP; 16 Nov 2021 19:19:06 -0800 Received: from gskx-2.sc.intel.com (gskx-2.sc.intel.com [172.25.33.41]) by scymds01.sc.intel.com with ESMTP id 1AH3J6gX025655; Tue, 16 Nov 2021 19:19:06 -0800 Received: by gskx-2.sc.intel.com (Postfix, from userid 10659939) id 88ACC2864700; Tue, 16 Nov 2021 19:19:06 -0800 (PST) Date: Tue, 16 Nov 2021 19:19:06 -0800 To: gcc-patches@gcc.gnu.org, gcc-regression@gcc.gnu.org, jh@suse.cz Subject: [r12-5324 Regression] FAIL: gcc.dg/tree-ssa/modref-dse-4.c scan-tree-dump dse2 "Deleted dead store: kill_me" on Linux/x86_64 User-Agent: Heirloom mailx 12.5 7/5/10 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <20211117031906.88ACC2864700@gskx-2.sc.intel.com> From: "sunil.k.pandey" X-Spam-Status: No, score=-3489.0 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, KAM_NUMSUBJECT, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no 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: Wed, 17 Nov 2021 03:19:09 -0000 On Linux/x86_64, 6dc90c4dbb6f9589dea9c670c3468496bb207de5 is the first bad commit commit 6dc90c4dbb6f9589dea9c670c3468496bb207de5 Author: Jan Hubicka Date: Tue Nov 16 23:01:28 2021 +0100 Use modref summaries for byte-wise dead store elimination. caused FAIL: gcc.dg/tree-ssa/modref-dse-4.c scan-tree-dump dse2 "Deleted dead store: kill_me" with GCC configured with ../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-5324/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap To reproduce: $ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/modref-dse-4.c --target_board='unix{-m32\ -march=cascadelake}'" (Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)