From owner-freebsd-current@freebsd.org Sun Mar 13 21:09:17 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 61306ACDAE1 for ; Sun, 13 Mar 2016 21:09:17 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: from mail-ig0-x22d.google.com (mail-ig0-x22d.google.com [IPv6:2607:f8b0:4001:c05::22d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 277CC101F for ; Sun, 13 Mar 2016 21:09:17 +0000 (UTC) (envelope-from carpeddiem@gmail.com) Received: by mail-ig0-x22d.google.com with SMTP id nk17so25614116igb.1 for ; Sun, 13 Mar 2016 14:09:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=s4WlJs52JWBane6o6a14OGfAW7eW0e7kWNKEXsXJ/E8=; b=QR9XBL6My3d5Fjkwjv0Yn1Ava3MMKH/xzweaV3h/T4wHJ6mKjKIqIXsLJFAQ90/Q+1 rEPgIMDqc/4ELdoAo858TOyxENZUtyjAo5Lqr+e3svtAuyeY+p/FchrqL/vfZwrI23Mw M5MYuXc1iCN74dK+6gFL3CzzE0AM17R/HT5q8pXStlyai1aN9BqF4hqRA+RyvGc8rNiA m8emFkJor6PMi2nX2SIuUnQZZMcdLyndiQKxHwVL1AERE/jdAwwZ16NL5z8PZ5GudG9B tuRaGuKKBj/BeSsqklGHhCdTcUxKYNB93cWtS7/qI+In/FNiNhuBnecXMEuuGOZFdq9h x3Hg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=s4WlJs52JWBane6o6a14OGfAW7eW0e7kWNKEXsXJ/E8=; b=PD010ijh4ZurvD3I+Ch6y97OA9UZM245Af33E7Ih1mLHHtSCPArsENLC8NkeE5AAPi qJG9sW9czt/7/peDi4ykxtAOaOdZSga9qSwLDNLQdoM2p1M7feWcjc+N2+X3ZIxAhdzg 7O7hI0GMM6DObsd6LT61ytvyNzSL5yaX18ObYxunRqMWX4LegB3cNxow7uBwP5gf3E91 n+ZWRVJ0aYWPqRmVFUoqDS15hw0L+RaASFEdPyA1j6xHHcCgiunBM7JGxdiEXYx1HRgD T1VxZ6zu8G8xT80jmPfwXsu5V1b0N/DyJMIypd3IKyxZBl5Ozmr9/mN93D2Q/IEqo155 lAhg== X-Gm-Message-State: AD7BkJLu8zlkyzwYUZJ84nnxPvQx9D+YmCFuSZJmqMTWmpFcjQngjPWFahGkIitBtbZwefC4HwisGXUXwSREcw== X-Received: by 10.50.12.8 with SMTP id u8mr13668712igb.33.1457903356115; Sun, 13 Mar 2016 14:09:16 -0700 (PDT) MIME-Version: 1.0 Sender: carpeddiem@gmail.com Received: by 10.107.39.66 with HTTP; Sun, 13 Mar 2016 14:08:56 -0700 (PDT) In-Reply-To: <20160313191637.GA25928@troutmask.apl.washington.edu> References: <20160313191637.GA25928@troutmask.apl.washington.edu> From: Ed Maste Date: Sun, 13 Mar 2016 21:08:56 +0000 X-Google-Sender-Auth: DXNEzfTQQjqd0w1BFeExrjFofWU Message-ID: Subject: Re: clang is mostlikely miscompling libm To: Steve Kargl Cc: FreeBSD Current Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 13 Mar 2016 21:09:17 -0000 On 13 March 2016 at 19:16, Steve Kargl wrote: > JFYI, > > It appears that clang on up-to-date current may be > miscompiling libm on at i686 class hardware. Do you have an example of the suspected miscompilation?