From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31636 invoked by alias); 24 Jul 2012 09:38:31 -0000 Received: (qmail 31627 invoked by uid 22791); 24 Jul 2012 09:38:30 -0000 X-SWARE-Spam-Status: No, hits=-3.6 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 24 Jul 2012 09:38:14 +0000 From: "wbrana at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/54077] New: Bytemark FP EMULATION 44% slower than with clang Date: Tue, 24 Jul 2012 09:38:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: wbrana at gmail dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-07/txt/msg01836.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54077 Bug #: 54077 Summary: Bytemark FP EMULATION 44% slower than with clang Classification: Unclassified Product: gcc Version: 4.7.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned@gcc.gnu.org ReportedBy: wbrana@gmail.com http://www.tux.org/~mayer/linux/nbench-byte-2.2.3.tar.gz clang FP EMULATION : 405.92 : 194.78 : 44.95 gcc FP EMULATION : 227.32 : 109.08 : 25.17 CFLAGS = -s -Wall -O3 -g0 -march=core2 -fomit-frame-pointer -funroll-loops -ffast-math -mssse3 -fno-PIE -fno-exceptions -fno-stack-protector