From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by sourceware.org (Postfix) with ESMTPS id 6F8203858429; Sat, 10 Sep 2022 06:43:54 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 6F8203858429 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 X-IronPort-AV: E=McAfee;i="6500,9779,10465"; a="359343406" X-IronPort-AV: E=Sophos;i="5.93,305,1654585200"; d="scan'208";a="359343406" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2022 23:43:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,305,1654585200"; d="scan'208";a="645806702" Received: from shvmail03.sh.intel.com ([10.239.245.20]) by orsmga008.jf.intel.com with ESMTP; 09 Sep 2022 23:43:36 -0700 Received: from shliclel314.sh.intel.com (shliclel314.sh.intel.com [10.239.240.214]) by shvmail03.sh.intel.com (Postfix) with ESMTP id C462210056EF; Sat, 10 Sep 2022 14:43:35 +0800 (CST) Received: from shliclel314.sh.intel.com (localhost [127.0.0.1]) by shliclel314.sh.intel.com (8.15.2/8.12.8/MailSET/client) with ESMTP id 28A6fRXx1402167; Sat, 10 Sep 2022 14:41:27 +0800 Received: (from haochenj@localhost) by shliclel314.sh.intel.com (8.15.2/8.12.8/MailSET/Submit) id 28A6fQpg1402165; Sat, 10 Sep 2022 14:41:26 +0800 From: "haochen.jiang" Message-Id: <202209100641.28A6fQpg1402165@shliclel314.sh.intel.com> Date: Sat, 10 Sep 2022 14:41:26 +0800 To: haochen.jiang@intel.com, gcc-patches@gcc.gnu.org, gcc-regression@gcc.gnu.org, trodgers@redhat.com Subject: [r13-2548 Regression] FAIL: 29_atomics/atomic_ref/compare_exchange_padding.cc execution test 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 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, 157236dbd621644b3cec50b6cf38811959f3e78c is the first bad commit commit 157236dbd621644b3cec50b6cf38811959f3e78c Author: Thomas Rodgers Date: Thu Aug 25 12:11:40 2022 +0200 libstdc++: Clear padding bits in atomic compare_exchange caused FAIL: 29_atomics/atomic_ref/compare_exchange_padding.cc execution test with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-2548/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}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=29_atomics/atomic_ref/compare_exchange_padding.cc --target_board='unix{-m32}'" $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=29_atomics/atomic_ref/compare_exchange_padding.cc --target_board='unix{-m32\ -march=cascadelake}'" (Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com)