From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) by sourceware.org (Postfix) with ESMTPS id C8126385802E for ; Wed, 22 Sep 2021 17:50:40 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org C8126385802E Received: by mail-pf1-x434.google.com with SMTP id w14so3391225pfu.2 for ; Wed, 22 Sep 2021 10:50:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=l5rCyC8CPbAigMlEVnaR67BpncJQ1ghd3tyHLK9lqGc=; b=T21DC4FSswrwHDUOIsRteDE+9KaPd3/9EdSL2ntY0HOALIrwZpVyKEL8e0DC3iB1CO klAzCBmwJ+a7KfAjuF7e5ZcS8ZxverSKGM7CJPIl1wDEoeLmU2uvgKOwEViLrHFPDp40 BX0BjMxHMHfCL5P2ZGQWZdxnhhz7o6kRB752b2jaZazJuvj5MMh6mFFmS/CRj1xIDi6M yD8OatdzlCyh/gry8uI5XGwdbKnkL8t857HbOBSQqIZrleN+1Ybt+M7BXwORXa6xI0Uw tHZZkn1n0g2yKEOLo9de2z2m8tqqOboLY1vAfGaLvs0Xi1jZqoATJT8Zdmyt518AsPoJ 7tZA== X-Gm-Message-State: AOAM531yLgGE+UOMI4TLCnNfycx2V7VJPG7/W5SL8IZH1wRcMsVj/Kel /foEbfoiU2upY6tjrw9GE3qruu3nAhk= X-Google-Smtp-Source: ABdhPJy+vda5SHUwlOsaD65FjcAzZjK29QknYZyfYDjvpHHgcEfE2nz0R2QTh//iZdwE/UDAWGG9lg== X-Received: by 2002:a63:84c1:: with SMTP id k184mr135151pgd.9.1632333039894; Wed, 22 Sep 2021 10:50:39 -0700 (PDT) Received: from [172.31.0.175] (c-98-202-48-222.hsd1.ut.comcast.net. [98.202.48.222]) by smtp.gmail.com with ESMTPSA id 9sm6836848pjs.14.2021.09.22.10.50.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Sep 2021 10:50:39 -0700 (PDT) Subject: Re: [PATCH] Simplify paradoxical subreg extensions of TRUNCATE To: Roger Sayle , 'Richard Sandiford' , 'GCC Patches' Cc: 'Segher Boessenkool' References: <001401d7a2a5$5bf07db0$13d17910$@nextmovesoftware.com> <20210906101414.GT1583@gate.crashing.org> <008201d7aee7$cc6357e0$652a07a0$@nextmovesoftware.com> From: Jeff Law Message-ID: Date: Wed, 22 Sep 2021 11:50:38 -0600 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <008201d7aee7$cc6357e0$652a07a0$@nextmovesoftware.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, NICE_REPLY_A, 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: Wed, 22 Sep 2021 17:50:41 -0000 On 9/21/2021 6:54 AM, Roger Sayle wrote: > That define_insn is making my eyes bleed! I think that's the most convincing > argument I've ever read on gcc-patches, and I can see now what Segher is so > opposed to. Then you haven't seen enough patterns or your eyes haven't toughened up through the years :-) Jeff