From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ej1-x644.google.com (mail-ej1-x644.google.com [IPv6:2a00:1450:4864:20::644]) by sourceware.org (Postfix) with ESMTPS id 5DE593858001 for ; Wed, 28 Oct 2020 20:45:15 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 5DE593858001 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=sifive.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=jimw@sifive.com Received: by mail-ej1-x644.google.com with SMTP id j24so769799ejc.11 for ; Wed, 28 Oct 2020 13:45:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=wlkZXdoJh8mYAGdlbnxRjP9BUT2HvUwaxLqO3pl8N7s=; b=FWCzTNWS8Q1oqEzOW8C5d5R5reL6+WA5grJKeIQGPQRDdmTlBni56iCwmGHoJkUPHT mmmFNcUvt1nwXoWAYPQDgp1TYMKuekxFANPXvOjeonwhS8chqsTWwxgdPWimO/pGkoaq joK6IsuRMKqvqyprgHQbd4iDNREqlszc6m+78CshY8CFZborolktMdmG59b9/LHOaZsm mnv3FGiHBbAJSqk161ZEjXjfZv1vrUhcyfp7D95p5hMyfpvzZhqCBlEWONz9bPM2h2k5 OvZix8UsjlgjFcnI9ujbQniaLoEx7PvrZxtOfDReUy+dXz5muPZpdN3t2baFosPBkCb6 0v9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=wlkZXdoJh8mYAGdlbnxRjP9BUT2HvUwaxLqO3pl8N7s=; b=Os6Nu7/XFwsZKj+rIpP1CYZhauVl6CJ4IkpHvq3lgng3Ngqv238koen4UgF7CBNVXH wVYUZOELiM/EOn7u2YMdO3/qHJTKDkszlZFnjybFELrSY/QdVdLGm0X6aFtHrI7eG0sK qps2kurXPOztUIU0jHSMmdgzvTYdBaxSrv/eQYyRXBDBooti96/VdRawsLHg0ij0RufW /agLFQSTlKakk2UVnuRYJYqZLELzKO9c18dbGOnUaywtrLV+B1GO9LX9u35rbq4xH3J7 n3O+wq8KbLqTf1cwOzKqNZLr3xlyadlaBExJbyD9spo7cd1EtnKLQkBh+Z8BTOu/7pri jNJQ== X-Gm-Message-State: AOAM532kONqkiXAq0G8tkgjQD29O2JeP68wCMXMV/28AdD3mzjcB4bCz tZlSJgwjBOqBNVScWbtD3glIOLpF33mVGDKGuyYO9w== X-Google-Smtp-Source: ABdhPJwIwpoUpLff94xBCAuOkk4XMQ793YEMM2JbNRDQqkN602BUiOIHeOujLoz/s4BNxtlUja5/Z3hxvWIhGWnGTZ0= X-Received: by 2002:a17:906:402:: with SMTP id d2mr834670eja.165.1603917914448; Wed, 28 Oct 2020 13:45:14 -0700 (PDT) MIME-Version: 1.0 References: <20201027061958.83712-1-kito.cheng@sifive.com> <20201027061958.83712-2-kito.cheng@sifive.com> <87361zfs1e.fsf@keithp.com> In-Reply-To: From: Jim Wilson Date: Wed, 28 Oct 2020 13:45:03 -0700 Message-ID: Subject: Re: [PATCH 2/2] RISC-V: Implment finite and fpclassify To: Kito Cheng Cc: Keith Packard , Newlib X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 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: Wed, 28 Oct 2020 20:45:16 -0000 A copysign hook would also be useful. That is a single instruction, just like abs. Jim > >