From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=jLLs=5J=gmail.com=jcmvbkbc@sourceware.org>
Received: from mail-yw1-x1131.google.com (mail-yw1-x1131.google.com [IPv6:2607:f8b0:4864:20::1131])
	by sourceware.org (Postfix) with ESMTPS id 2972C3854395
	for <gcc-patches@gcc.gnu.org>; Thu, 12 Jan 2023 12:46:58 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 2972C3854395
Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com
Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com
Received: by mail-yw1-x1131.google.com with SMTP id 00721157ae682-4b6255ce5baso236713057b3.11
        for <gcc-patches@gcc.gnu.org>; Thu, 12 Jan 2023 04:46:58 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20210112;
        h=cc:to:subject:message-id:date:from:in-reply-to:references
         :mime-version:from:to:cc:subject:date:message-id:reply-to;
        bh=z8LNqcTrXi1zMYpgnDg7R8ITBnEyqmTRl/g7e32PZj4=;
        b=OfYCLXCzd0GDxdEtZEpRhHT2MzzMUOkkYuBZoUYT//6a5KjzAMFV3GWMz1khVMW50n
         CybiZ3iawzMd1gP3NLsmsX1JyVrzKUNzLuERbE898BECzbE+4KHXgS/4LVENqyoK9NcU
         p5PMiU7dBXLJ3TipqyBObY/oZKyJ8gritrG5pfS0M160MbI0F5syuYlnd67LwSpQDTxN
         gaPt77lqK5IMmJqh/51hCWAkxZLygoEjoggTvXb+o0NC9wD7qn95HOzM86PFoUYwvfdI
         RyfiYjwX4/8VY+rbr0lrU2PYZdK8xU7/yiJkF5P9aiVVrpW5n/Jg/w+t8YEvz7IMWm31
         cQzQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20210112;
        h=cc:to:subject:message-id:date:from:in-reply-to:references
         :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id
         :reply-to;
        bh=z8LNqcTrXi1zMYpgnDg7R8ITBnEyqmTRl/g7e32PZj4=;
        b=A78bu7mPEEn0YLJzHW9avZxw4NDpuPbyEZ3JCzrf/V1MYn60UtbrZsK5N1Hi2/EB+s
         aiBL2ea0zVAaaNSJOMvLkBip1QHu7frXg3alaF3ufczGeUik5m9H4xjH8mJEiw8y8Tzu
         SSeXXlTWg/lpDX66Wn4AkEoG7YRwBEjcxgF6HrcKyW/8AYJIfI6P1P/oUvore9+TSN1P
         p/hY4EjX3kQAqrA/ecZZ2fG6mhWbRQQlS6JwV9YPXAc87Jtk3wuzk3IoX5BbUSl2Is24
         +BjH1sbnhPsRw1bKzmNfPqYT1geMm000Qnp5Xc4RofO2BIlq4xr+jXPW5DETffsJmlf0
         XakA==
X-Gm-Message-State: AFqh2kr42Vp2uuznFU7XmXq8Vgx1gM1F2q2yzBBsy8G5StOlfCskF7Mf
	xfQ74+AET5PyifJ6QUrB1cyy50s7QbDW+d5ZueY=
X-Google-Smtp-Source: AMrXdXu36IELujAhVKpqoH8VuSC/PFiB79wZ8tchO73gVxd7EiIsXtSMPZjwbmXkQQrgd0wvwXyPhOYEqpfeW3nYPHk=
X-Received: by 2002:a81:4e41:0:b0:4d4:2ce4:5f0c with SMTP id
 c62-20020a814e41000000b004d42ce45f0cmr898365ywb.435.1673527617500; Thu, 12
 Jan 2023 04:46:57 -0800 (PST)
MIME-Version: 1.0
References: <bf7f5873-6959-9ca5-5a2f-83499ac78034.ref@yahoo.co.jp> <bf7f5873-6959-9ca5-5a2f-83499ac78034@yahoo.co.jp>
In-Reply-To: <bf7f5873-6959-9ca5-5a2f-83499ac78034@yahoo.co.jp>
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Thu, 12 Jan 2023 04:46:46 -0800
Message-ID: <CAMo8BfLmwNuSHo_7+_W2zEKRTE-2JPcKrk1fbo_a0r_DgDYVSQ@mail.gmail.com>
Subject: Re: [PATCH 2/2] xtensa: Optimize ctzsi2 and ffssi2 a bit
To: "Takayuki 'January June' Suwa" <jjsuwa_sys3175@yahoo.co.jp>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
Content-Type: text/plain; charset="UTF-8"
X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,FROM_LOCAL_NOVOWEL,HK_RANDOM_ENVFROM,HK_RANDOM_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=no autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org
List-Id: <gcc-patches.gcc.gnu.org>

On Wed, Jan 11, 2023 at 8:26 PM Takayuki 'January June' Suwa
<jjsuwa_sys3175@yahoo.co.jp> wrote:
>
> This patch saves one byte when the Code Density Option is enabled,
>
> gcc/ChangeLog:
>
>         * config/xtensa/xtensa.md (ctzsi2, ffssi2):
>         Rearrange the emitting codes.
> ---
>  gcc/config/xtensa/xtensa.md | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

Regtested for target=xtensa-linux-uclibc, no new regressions.
Committed to master.

-- 
Thanks.
-- Max