From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by sourceware.org (Postfix) with ESMTPS id 230A7385221D; Thu, 24 Nov 2022 09:11:23 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 230A7385221D 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="6500,9779,10540"; a="297617765" X-IronPort-AV: E=Sophos;i="5.96,190,1665471600"; d="scan'208";a="297617765" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Nov 2022 01:11:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10540"; a="592843794" X-IronPort-AV: E=Sophos;i="5.96,190,1665471600"; d="scan'208";a="592843794" Received: from shvmail03.sh.intel.com ([10.239.245.20]) by orsmga003.jf.intel.com with ESMTP; 24 Nov 2022 01:11:19 -0800 Received: from shliclel314.sh.intel.com (shliclel314.sh.intel.com [10.239.240.214]) by shvmail03.sh.intel.com (Postfix) with ESMTP id 8A15D10054C3; Thu, 24 Nov 2022 17:11:18 +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 2AO996161418856; Thu, 24 Nov 2022 17:09:06 +0800 Received: (from haochenj@localhost) by shliclel314.sh.intel.com (8.15.2/8.12.8/MailSET/Submit) id 2AO996fr1418848; Thu, 24 Nov 2022 17:09:06 +0800 From: "haochen.jiang" Message-Id: <202211240909.2AO996fr1418848@shliclel314.sh.intel.com> Date: Thu, 24 Nov 2022 17:09:06 +0800 To: haochen.jiang@intel.com, gcc-patches@gcc.gnu.org, gcc-regression@gcc.gnu.org, hongyu.wang@intel.com Subject: [r13-4272 Regression] FAIL: gcc.dg/guality/loop-1.c -O3 -g -DPREVENT_OPTIMIZATION line 20 i == 1 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 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, 8caf155a3d6e23e47bf55068ad23c23d4655a054 is the first bad commit commit 8caf155a3d6e23e47bf55068ad23c23d4655a054 Author: Hongyu Wang Date: Sat Nov 19 09:38:00 2022 +0800 i386: Only enable small loop unrolling in backend [PR 107692] caused FAIL: gcc.dg/guality/loop-1.c -O2 -DPREVENT_OPTIMIZATION line 20 i == 1 FAIL: gcc.dg/guality/loop-1.c -O2 -flto -fno-use-linker-plugin -flto-partition=none -DPREVENT_OPTIMIZATION line 20 i == 1 FAIL: gcc.dg/guality/loop-1.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects -DPREVENT_OPTIMIZATION line 20 i == 1 FAIL: gcc.dg/guality/loop-1.c -O3 -g -DPREVENT_OPTIMIZATION line 20 i == 1 with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-4272/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="guality.exp=gcc.dg/guality/loop-1.c --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="guality.exp=gcc.dg/guality/loop-1.c --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)