From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4935 invoked by alias); 25 Jun 2012 10:39:15 -0000 Received: (qmail 4809 invoked by uid 22791); 25 Jun 2012 10:39:13 -0000 X-SWARE-Spam-Status: No, hits=-3.7 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO sourceware.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 25 Jun 2012 10:38:27 +0000 From: "liubov.dmitrieva at gmail dot com" To: glibc-bugs@sources.redhat.com Subject: [Bug math/14283] Inaccurate range reduction for float (sinf, cosf) Date: Mon, 25 Jun 2012 10:39:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: glibc X-Bugzilla-Component: math X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: liubov.dmitrieva at gmail dot com X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Status CC Resolution Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact glibc-bugs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: glibc-bugs-owner@sourceware.org X-SW-Source: 2012-06/txt/msg00246.txt.bz2 http://sourceware.org/bugzilla/show_bug.cgi?id=14283 Liubov Dmitrieva changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |liubov.dmitrieva at gmail | |dot com Resolution| |FIXED --- Comment #1 from Liubov Dmitrieva 2012-06-25 10:38:25 UTC --- The patch works well. Before patch applied Intel proprietary test framework yields the following results: On I386: Summary: ---------------------------------- Function PASS/ Max Ulp Roun FAIL error ding ---------------------------------- SINF FAIL 6.987e+06 Near SINF FAIL 2.334e+07 +Inf SINF FAIL 1.191e+07 -Inf SINF FAIL 2.229e+06 Zero ---------------------------------- COSF FAIL 1.141e+05 Near COSF FAIL 4.102e+05 +Inf COSF FAIL 2.003e+05 -Inf COSF FAIL 27.631139 Zero ---------------------------------- On x86_64: Summary: ---------------------------------- Function PASS/ Max Ulp Roun FAIL error ding ---------------------------------- SINF FAIL 7.390e+06 Near SINF FAIL 2.054e+07 +Inf SINF FAIL 3.759e+06 -Inf SINF FAIL 3.759e+06 Zero ---------------------------------- COSF FAIL 2.489e+05 Near COSF FAIL 2.754e+05 +Inf COSF FAIL 2.754e+05 -Inf COSF FAIL 2.754e+05 Zero ---------------------------------- I applied the patch, and results now good (I allowed error 5 ulp, hence no errors): On I386: Summary: ---------------------------------- Function PASS/ Max Ulp Roun FAIL error ding ---------------------------------- SINF PASS 0.949884 Near SINF PASS 1.501194 +Inf SINF PASS 1.542971 -Inf SINF PASS 1.542971 Zero ---------------------------------- COSF PASS 2.905172 Near COSF PASS 2.905172 +Inf COSF PASS 3.905172 -Inf COSF PASS 3.905172 Zero ---------------------------------- On x86_64: Summary: ---------------------------------- Function PASS/ Max Ulp Roun FAIL error ding ---------------------------------- SINF PASS 1.213484 Near SINF PASS 3.542971 +Inf SINF PASS 1.854113 -Inf SINF PASS 1.875448 Zero ---------------------------------- COSF PASS 2.905172 Near COSF PASS 3.544283 +Inf COSF PASS 3.905172 -Inf COSF PASS 3.905172 Zero ---------------------------------- -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.