Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp785261ybb;
        Fri, 10 Apr 2020 10:03:50 -0700 (PDT)
X-Google-Smtp-Source: APiQypLZ6GvpwnqmsYm7wCqyMHY7Ta6HU87+7kX6oszDIc/oQMUxfmzMDZ4zNasAfOlgJhgh+lPK
X-Received: by 2002:aed:2766:: with SMTP id n93mr162191qtd.130.1586538229899;
        Fri, 10 Apr 2020 10:03:49 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1586538229; cv=none;
        d=google.com; s=arc-20160816;
        b=H7+7eco45BPdufbrm8BfB1V6xLOch+x0m1DLX16aBR/0LYl1/ZGJUSU/yuLWx3oyBI
         zPcnSAShTeR4oWb5hvH1TZXoXigu72QsdQsuz/4N9d/Kb658JVPLQVsxdmaAVIIdnpnL
         0xj5r799w00X9MgFQCBKeokZZTvKg0SODciYN/tWPZSD1Bd8FtxLaqB30JL93XOLZ5jZ
         nIv2ANPSxZzoH6HtkQ9sWVSgcwSElgAsVezP/56dMJACd3UZitRqibYCmrdxhoYsFzUD
         1NmvH1pBycvgSRdCcBRlCHy2gQFrmDIuo7QekezxvkB82DqEINj919iHvj+W8DPyIUIt
         06Ww==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:sender:in-reply-to:content-disposition
         :mime-version:references:message-id:subject:cc:to:from:date
         :dkim-signature;
        bh=oUKFqLg3+HDFm2vs2QWf5wGOnTF90+YW2FpbPNodGzs=;
        b=O0z9YI6YJN8iU/JmLaCIwsJEXIJxjQdZWH0bZ0O5UXlcdQQ+zgnaDyzWYBjAwodUVS
         vdEw3AGkOud/vyCL9F/hAZjcKOTX36Xg89ZtIjf8VinrFo81M7v1HNLDgECysXTEsrOV
         wJQ6GFubo9L1rPpcN2cy5GsGvbOawlTvau0/AvPQmOdCaJKuUZSI40fUWNQMqU/WBsjj
         L6/Ozi/AWGWeWdoVlLe9apkJLhhF3tTtlfdCrL2LxNIHAV2J6nQZi3NDJwwSIDlGJViB
         XlrtgMeik9Ubu9iG1Fzk7/+r+WSL3wTVwN2Rq4KmDcP+AtQ1H8xkwmd12TeygSA+v8nO
         IIhw==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=fail header.i=@lunn.ch header.s=20171124 header.b=Gug0M9Uy;
       spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67])
        by mx.google.com with ESMTP id y19si1267393qvf.125.2020.04.10.10.03.19;
        Fri, 10 Apr 2020 10:03:49 -0700 (PDT)
Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Authentication-Results: mx.google.com;
       dkim=fail header.i=@lunn.ch header.s=20171124 header.b=Gug0M9Uy;
       spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1726666AbgDJRAp (ORCPT <rfc822;rmelvin.vger@gmail.com>
        + 99 others); Fri, 10 Apr 2020 13:00:45 -0400
Received: from vps0.lunn.ch ([185.16.172.187]:58712 "EHLO vps0.lunn.ch"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1726203AbgDJRAp (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Fri, 10 Apr 2020 13:00:45 -0400
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch;
        s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:
        Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID:
        Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
        :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe:
        List-Post:List-Owner:List-Archive;
        bh=oUKFqLg3+HDFm2vs2QWf5wGOnTF90+YW2FpbPNodGzs=; b=Gug0M9UyuSpEBsOoExHvkg79nj
        RraZD7s/HpjWHeZhbOm1BTN9DBDiI2Isn1+bvmxmTSDIrbX8CQXtqQh3YB3OwGB7+l/o9XGoDoWCC
        pRm39IUagOU54lOG36W8XUoJ/UXPMnC67Qf+gqMTWNVdbv/3Bt5Fjum7MZRraqCdCQCI=;
Received: from andrew by vps0.lunn.ch with local (Exim 4.93)
        (envelope-from <andrew@lunn.ch>)
        id 1jMx0O-001zrZ-H4; Fri, 10 Apr 2020 18:59:48 +0200
Date:   Fri, 10 Apr 2020 18:59:48 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     Jian Cai <caij2003@gmail.com>
Cc:     Linus Walleij <linus.walleij@linaro.org>, Peter.Smith@arm.com,
        stefan@agner.ch, David Howells <dhowells@redhat.com>,
        Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
        manojgupta@google.com,
        Benjamin Gaignard <benjamin.gaignard@linaro.org>,
        "Joel Fernandes (Google)" <joel@joelfernandes.org>,
        clang-built-linux@googlegroups.com, ilie.halip@gmail.com,
        Masahiro Yamada <masahiroy@kernel.org>,
        Russell King <linux@armlinux.org.uk>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        samitolvanen@google.com,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Arnd Bergmann <arnd@arndb.de>,
        "Steven Rostedt (VMware)" <rostedt@goodmis.org>,
        jiancai@google.com, Doug Anderson <armlinux@m.disordat.com>,
        Dan Williams <dan.j.williams@intel.com>,
        linux-arm-kernel@lists.infradead.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        ndesaulniers@google.com, linux-kernel@vger.kernel.org,
        Patrick Bellasi <patrick.bellasi@arm.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Tejun Heo <tj@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] ARM: do not assemble iwmmxt.S with LLVM toolchain
Message-ID: <20200410165948.GD448831@lunn.ch>
References: <20200409232728.231527-1-caij2003@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20200409232728.231527-1-caij2003@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, Apr 09, 2020 at 04:27:26PM -0700, Jian Cai wrote:
> iwmmxt.S contains XScale instructions

Dumb question....

Are these Xscale instructions? My understanding is that they are an
instruction set of their own, implementing something similar to IA-32
MMX. 

Would it be more accurate to say CLANG does not support the iwmmxt
instruction set?

	    Andrew