From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-x132.google.com (mail-lf1-x132.google.com [IPv6:2a00:1450:4864:20::132]) by sourceware.org (Postfix) with ESMTPS id 612E53858400 for ; Mon, 18 Oct 2021 12:15:53 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 612E53858400 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=sifive.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=sifive.com Received: by mail-lf1-x132.google.com with SMTP id g36so50490219lfv.3 for ; Mon, 18 Oct 2021 05:15:53 -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=YDSCAnulbS1r08bJ/715/pbgZovSsFgGHjVjXwK0DAE=; b=mlyrNeZWHvaHDJWsruIGzqn+l6LtI8lM5MEdfD+6cVNv6qI4dgtZDR8GN/jZQGzu6W a7Ujhwc2WnlDFCAaAiqynWWj8JijMpiA/AG+ZxvX9mTOIGwyXiHZOL+kmZWu7LLqrcJQ A3IypvQp7d8ZT1HfrAakVxyt45rBrAqa1GF9U/0WYurdpqQNRryj4kKAqg7mNFhihvFf Xyht7QWGooBAfodriX2H10fzQaWuWnL7cyQaE0P4wA+2DrVCDcRLHfnSI6Jf9M65DUtF Rj/0hIYA/iQFbQIIYfmwBXicL9/8rv1VeViFV10VtswGE65mgEgbEUMNhhxcurQ1F/x3 JKyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=YDSCAnulbS1r08bJ/715/pbgZovSsFgGHjVjXwK0DAE=; b=10NSKKdGs5DVZylIyHlDeb51rCU3tjNxAYeybcCexRP3uXCFosqzDZxRVQKGVo7X6g xrflMWS4jdSI2sfiQ3doTbCojxrJ1AqiOBMEaHwODKzVULaReE5oAgv14DyObhVIicBA Ty6fhJs3gosqE/qDctJoNA1n0+bmhdg6ghu37XDy0b53ezuP+7+6P91mZxTjzyiywGoZ UjdWhQDXSjp7dNp+L+OJz8a5UVX5WtNYyUz29FFXKKdJ7UCHqrlIYrYMcqiv2wyrsbXH sKsHVGa4v3LBPsT+u3k3sqSJ0ZiH1vxOBT4frsxToddtSJe+qYOKkCQBaNXmmllcNYUg c0KQ== X-Gm-Message-State: AOAM5316evc8KjDfzw0OvNTMa5MtBYnmoFMOig+YTyQkbRGY6/wB6HO4 a7wynwxCYV36Hnmol+FcwdcG39/lmJlTeJs1XvcBDA== X-Google-Smtp-Source: ABdhPJyldCZB/ElUhqb9WoDtmr3YKuuFPynsSyvB/o2q0Py5IzZy7HNPHuCDHgX2hXzGGXC6Kq3vMjgY112WVBUC7Es= X-Received: by 2002:a19:c34d:: with SMTP id t74mr28522990lff.452.1634559351963; Mon, 18 Oct 2021 05:15:51 -0700 (PDT) MIME-Version: 1.0 References: <20210923075731.50125-1-kito.cheng@sifive.com> <20210923075731.50125-2-kito.cheng@sifive.com> In-Reply-To: From: Kito Cheng Date: Mon, 18 Oct 2021 20:15:41 +0800 Message-ID: Subject: Re: [RFC PATCH 1/8] RISC-V: Minimal support of bitmanip extension To: Christoph Muellner Cc: GCC Patches , Kito Cheng , Jim Wilson , jiawei , Palmer Dabbelt , Andrew Waterman Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-5.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Oct 2021 12:15:54 -0000 > > That's a good point, but ISA_SPEC_CLASS_FROZEN_2021 is hard to > > reference to which spec, so I would prefer to add a -misa-spec=2021 to > > align platform/profile spec, and then ISA_SPEC_CLASS_2021, and before > > RISC-V platform/profile spec has released, let keep > > ISA_SPEC_CLASS_NONE :p > > For sure we cannot reference a spec that is not frozen yet (i.e. > platform/profile). > ISA_SPEC_CLASS_FROZEN_2021 was a proposal for all groups of ISA extensions > that have been frozen in 2021 (zb*, zk*, etc.) and will eventually be ratified. > But yes, keeping NONE until the specifications are ratified and change > the specification > class then is also possible. I expect those specs can be ratified at the end of this year, and then we still have a few months to update before GCC 12 release.