From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) by sourceware.org (Postfix) with ESMTPS id F3FD53858D20 for ; Sat, 5 Feb 2022 05:30:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org F3FD53858D20 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=inria.fr Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=inria.fr DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inria.fr; s=dc; h=date:message-id:from:to:subject; bh=51PSgl6fcBdwiGJtJLtMUiSmPP/qeY+CvFceKAblrH0=; b=qL4qyL0f8GSeAOflaspH/50QgKsefjMIW7P+xeQ4b7stxd8ePaMNpzII b/k1Sii+H4tJv7CCrJUhy+qMfKEmMm1UBz3UOoyrLHMriS2ZnO+/+zKGp V9rU57ozm1Ibp9afPDMGddOwUKfsfuOkFsc0zHAVbOztKjKbT53Mb4mgu g=; X-IronPort-AV: E=Sophos;i="5.88,344,1635199200"; d="scan'208";a="5075601" Received: from tomate.loria.fr (HELO tomate) ([152.81.10.51]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Feb 2022 06:30:13 +0100 Date: Sat, 05 Feb 2022 06:30:12 +0100 Message-Id: From: Paul Zimmermann To: newlib@sourceware.org Subject: regression in Newlib 4.2.0 X-Spam-Status: No, score=-2.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, KAM_NUMSUBJECT, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: newlib@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Newlib mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Feb 2022 05:30:15 -0000 Hi, another regression in Newlib 4.2.0 (with 4.1.0 the largest error for tgammaf was 239 ulps according to https://members.loria.fr/PZimmermann/papers/accuracy.pdf): Checking tgamma with newlib-4.2.0.20211231 MPFR library: 4.1.0 MPFR header: 4.1.0 (based on 4.1.0) Checking function tgammaf with MPFR_RNDN libm wrong by up to 1.55e+26 ulp(s) [18446744073709551615] for x=-0x1.000002p-65 tgamma gives -inf mpfr_tgamma gives -0x1.fffffcp+64 Total: errors=2967689031 (69.37%) errors2=2773050476 maxerr=1.55e+26 ulp(s) Paul