From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 57323 invoked by alias); 20 Jul 2017 00:58:28 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 57275 invoked by uid 89); 20 Jul 2017 00:58:23 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.2 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_LOW,RCVD_IN_SORBS_SPAM autolearn=no version=3.3.2 spammy= X-HELO: mail-qt0-f182.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:organization :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=/XIT+pA0PLgo9mvloq2g278X5rcB3PoprvT8tSlG6L0=; b=mu1E+Hl1f1F7JGzc3fDSuy/fog7SqOxM5TpOLCAofiriFAlYvbBzoHMPyAS4uOUK7t aTWWZ7AQ+j7bGmzWdBMsKVY9Dk36a3wlCb3wv+Ka3g0xSlZ3ATsrle18alCV1W29t8VR 6tuUsUbNBwhX7ZMi3kJJWnBvH73eZRJ500xggmPRGUOt8kyjHx5IKwGuC+desl9pwOYL i2nraoT6jlhs9K3PQ2NTAA1SAI+G4Y7P+vcpL7+/ziHmTmoKhjaiIlEmg07OMc201lWM SwN/+doklHB4m53z63rXO9QjtONhIx1oP9vPBqfxoyUFtlqZy6e33rKY2lflwuXyRjnN +6lA== X-Gm-Message-State: AIVw1136FycVfqlm3GzzOD0SKs6TGXInu0XG7YGh9y3DjvgBX+GInat/ vbQoe6eule1Oii1oeFBsmg== X-Received: by 10.200.55.147 with SMTP id d19mr2620323qtc.94.1500512300757; Wed, 19 Jul 2017 17:58:20 -0700 (PDT) Subject: Re: long double test failures due to underflow exception getting set? To: sellcey@cavium.com, libc-alpha@sourceware.org References: <201707192134.v6JLYQXo004521@sellcey-dt.caveonetworks.com> From: Carlos O'Donell Message-ID: <041f2faf-c501-c70d-0c59-627fd8972543@redhat.com> Date: Thu, 20 Jul 2017 00:58:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <201707192134.v6JLYQXo004521@sellcey-dt.caveonetworks.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-SW-Source: 2017-07/txt/msg00714.txt.bz2 On 07/19/2017 05:34 PM, Steve Ellcey wrote: > Is anyone else seeing these failures with the latest glibc sources? > I am getting them on aarch64 (standard ToT sources) and was wondering > if this is an aarch64 specific problem or a more generic bug. Since > all the failures involve long double I don't think they are using > aarch64 specific code, but I could be wrong. > > FAIL: math/test-ldouble-cexp > FAIL: math/test-ldouble-exp > FAIL: math/test-ldouble-finite-cexp > FAIL: math/test-ldouble-finite-exp > > I think these failures are new and all of the failures listed are > about the Underflow exception being set: > > I.e. > > testing long double (without inline functions) > Failure: exp (-0x1p-10000): Exception "Underflow" set > Failure: exp (-0x2p-16384): Exception "Underflow" set > Failure: exp (-0x4p-16384): Exception "Underflow" set > Failure: exp (-0x4p-16448): Exception "Underflow" set > Failure: exp (-0x4p-16496): Exception "Underflow" set > Failure: exp (-0x8p-16448): Exception "Underflow" set Neither DJ nor Szabolcs's glibc 2.26 builds showed those failures: https://sourceware.org/glibc/wiki/Release/2.26 -- Cheers, Carlos.