From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by sourceware.org (Postfix) with ESMTPS id 130513858430; Fri, 15 Dec 2023 17:38:48 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 130513858430 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=ecsmtp.sh.intel.com Authentication-Results: sourceware.org; spf=none smtp.mailfrom=ecsmtp.sh.intel.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 130513858430 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=134.134.136.126 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1702661931; cv=none; b=gqFuaGFnlBaY7TM1q+7hecelO1OStcF1IrMe2MHIpWTguqV6qdPYlC/+D+mUMS/PXEx4cyZMfXk1qGT4f/JXSuQYQSR8WFqFjsLxEoa6YXP/aTG2eIgLMOjuCDO5FbNlqTz1f8Bl9/6RLKyCtvSYKJOLn/33m3yjg17CsOg17cU= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1702661931; c=relaxed/simple; bh=/f0dOhB2KMs4r9RP2s4kX9hJE5y6Wm6QD+JbyUh7f6Y=; h=From:Message-Id:Date:To:Subject; b=D8JTYtYqlqheKazI7Rwibg6NrlO6hduhwwWFq+z62fNxZBP4/AaV9AjK03vI9hgtKllkFnyRvjSFmHDzFF/leWsscRcBH/PFJcWZ2KX4InWMd42NIdgCxs6taq0FCuzh0S/6XHh18xTtTlgh6EjyAGIQ3EZVEFHNwfrWLj9ATg8= ARC-Authentication-Results: i=1; server2.sourceware.org X-IronPort-AV: E=McAfee;i="6600,9927,10925"; a="380304102" X-IronPort-AV: E=Sophos;i="6.04,279,1695711600"; d="scan'208";a="380304102" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Dec 2023 09:38:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10925"; a="768058005" X-IronPort-AV: E=Sophos;i="6.04,279,1695711600"; d="scan'208";a="768058005" Received: from shvmail03.sh.intel.com ([10.239.245.20]) by orsmga007.jf.intel.com with ESMTP; 15 Dec 2023 09:38:30 -0800 Received: from shliclel4214.sh.intel.com (shliclel4214.sh.intel.com [10.239.240.214]) by shvmail03.sh.intel.com (Postfix) with ESMTP id 018E1100570C; Sat, 16 Dec 2023 01:38:29 +0800 (CST) Received: from shliclel4214.sh.intel.com (localhost [127.0.0.1]) by shliclel4214.sh.intel.com (8.16.1/8.12.8/MailSET/client) with ESMTP id 3BFHaJxc3548556; Sat, 16 Dec 2023 01:36:19 +0800 Received: (from haochenj@localhost) by shliclel4214.sh.intel.com (8.16.1/8.16.1/Submit) id 3BFHaITp3548555; Sat, 16 Dec 2023 01:36:18 +0800 From: "haochen.jiang" Message-Id: <202312151736.3BFHaITp3548555@shliclel4214.sh.intel.com> Date: Sat, 16 Dec 2023 01:36:18 +0800 To: dizhao@os.amperecomputing.com, gcc-regression@gcc.gnu.org, gcc-patches@gcc.gnu.org, haochen.jiang@intel.com Subject: [r14-6559 Regression] FAIL: gcc.dg/guality/pr58791-4.c -Os -DPREVENT_OPTIMIZATION line pr58791-4.c:32 i == 486 on Linux/x86_64 User-Agent: s-nail v14.9.22 X-Spam-Status: No, score=-0.5 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,KAM_LAZY_DOMAIN_SECURITY,KAM_NUMSUBJECT,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On Linux/x86_64, 8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652 is the first bad commit commit 8afdbcdd7abe1e3c7a81e07f34c256e7f2dbc652 Author: Di Zhao Date: Fri Dec 15 03:22:32 2023 +0800 Consider fully pipelined FMA in get_reassociation_width caused FAIL: gcc.dg/pr110279-2.c scan-tree-dump-not reassoc2 "was chosen for reassociation" FAIL: gcc.dg/pr110279-2.c scan-tree-dump-times optimized "\\.FMA " 3 with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6559/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="dg.exp=gcc.dg/pr110279-2.c --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr110279-2.c --target_board='unix{-m64}'" (Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com) (If you met problems with cascadelake related, disabling AVX512F in command line might save that.) (However, please make sure that there is no potential problems with AVX512.)