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 AC87D3860753; Tue, 25 Oct 2022 23:32:47 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org AC87D3860753 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="6500,9779,10511"; a="369882433" X-IronPort-AV: E=Sophos;i="5.95,213,1661842800"; d="scan'208";a="369882433" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Oct 2022 16:32:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10511"; a="876987246" X-IronPort-AV: E=Sophos;i="5.95,213,1661842800"; d="scan'208";a="876987246" Received: from shvmail03.sh.intel.com ([10.239.245.20]) by fmsmga006.fm.intel.com with ESMTP; 25 Oct 2022 16:32:43 -0700 Received: from shliclel314.sh.intel.com (shliclel314.sh.intel.com [10.239.240.214]) by shvmail03.sh.intel.com (Postfix) with ESMTP id 3A45610056AF; Wed, 26 Oct 2022 07:32:43 +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 29PNWg6x3660121; Wed, 26 Oct 2022 07:32:42 +0800 Received: (from haochenj@localhost) by shliclel314.sh.intel.com (8.15.2/8.12.8/MailSET/Submit) id 29PNWgc53660119; Wed, 26 Oct 2022 07:32:42 +0800 From: "haochen.jiang" Message-Id: <202210252332.29PNWgc53660119@shliclel314.sh.intel.com> Date: Wed, 26 Oct 2022 07:32:42 +0800 To: haochen.jiang@intel.com, gcc-patches@gcc.gnu.org, gcc-regression@gcc.gnu.org, rguenther@suse.de Subject: [r13-3476 Regression] FAIL: gcc.dg/vect/pr100756.c scan-tree-dump-not vect "epilog loop required" 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, 19295e8607da2f743368fe6f5708146616aafa91 is the first bad commit commit 19295e8607da2f743368fe6f5708146616aafa91 Author: Richard Biener Date: Mon Oct 24 09:51:32 2022 +0200 tree-optimization/100756 - niter analysis and folding caused FAIL: gcc.dg/vect/pr100756.c -flto -ffat-lto-objects scan-tree-dump-not vect "epilog loop required" FAIL: gcc.dg/vect/pr100756.c scan-tree-dump-not vect "epilog loop required" with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-3476/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="vect.exp=gcc.dg/vect/pr100756.c --target_board='unix{-m32\ -march=cascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="vect.exp=gcc.dg/vect/pr100756.c --target_board='unix{-m64\ -march=cascadelake}'" (Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com)