From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl1-x62d.google.com (mail-pl1-x62d.google.com [IPv6:2607:f8b0:4864:20::62d]) by sourceware.org (Postfix) with ESMTPS id 3F529386C5AA for ; Fri, 17 Nov 2023 15:13:44 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 3F529386C5AA Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 3F529386C5AA Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2607:f8b0:4864:20::62d ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1700234025; cv=none; b=mGFD5IcRWswuIwxQ8/mlAL7UWjbZjhOv8Y00706FRr0dJcKiqnEw9vUEvMw4Y4OE3U8zwX5FmHcfC/xicpV/sXhhK9nB7RvZ79edHsKIlxxhhGfHWfWCvpHumX5K+tQg67HkAY/kiR/Z1lgN6Yc89lA6MrHUPXXR2as9Sl6bP98= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1700234025; c=relaxed/simple; bh=R9jgDbLx0z7/PCWEewGm6PdQv0d3vr8C9M8XXhjRdW4=; h=DKIM-Signature:Message-ID:Date:MIME-Version:Subject:To:From; b=g964prJlLOsY6hBX9fzM5DGeZCpRAN4mlJoGl+3oynIShscblBRF9dPO4ElvQcrahMpzfA4zmshAtx1O3ecP36HcISAE8vJTsUgqQYzJZiTNY9GVWnDTrKutQXhRKzD5blifmnqnNcDUCK3SEFgGdufxMdo/rCqYTfS3Kzn9INs= ARC-Authentication-Results: i=1; server2.sourceware.org Received: by mail-pl1-x62d.google.com with SMTP id d9443c01a7336-1cc1e1e74beso18728795ad.1 for ; Fri, 17 Nov 2023 07:13:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1700234022; x=1700838822; darn=gcc.gnu.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=3he7FImjeqK+B9ifiIcbAlTqZwh29aeth1RY6ZN9V0c=; b=Vqdd1dCdc00I3Qiv+CLtD8ATHefl/kgf78N/MXPJHtXvaoqYXAZbYdcvCBuBRubbZQ 1D1wlyHuua3dRS4Srx7WPWyc6ldrIjhwcwC+TRmUh+4yeITguXVTPS214D4ikSzKtVCK amJ+NBvVY8lGR4J0D+zklBrKTBWZYtm/DROIWCpX2U8Zqv6rxpBj2yqLr/RabDsQimzb rW4OXFqiQX/Ukb3pHVhjn+HMtfXeE/dJYYZS2DG1Ao6+AR/pc+gBairDdJiQ7jXrPFqZ ke0fXo1eDDAFmpIEsjc4EMq46T9qL0iLQy8YF8FI3ViV2nmFDi5kk/O+NgJcHW+xM6tD mzAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700234022; x=1700838822; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=3he7FImjeqK+B9ifiIcbAlTqZwh29aeth1RY6ZN9V0c=; b=szD0/zGAjict9XsFE+mxVWUMQCnubpyLJXT7mY4Lkk3SKHhXgvsrEMaiUwdYFtXbcX E7V+7XNwikKpUa4sx25pzte1diFu9OJ7/sWvNDoZgF6v0MWK3wlvUHqOPL32dNs1vNJs fsri9w3G0ZWP63KiNgCpJqPI8XOmiPPgyLLjMIVrXg3eSYasPU/LugdZUC8cvf0nkYCc ll0RpPZdsmYRlbZZyEQE1QIERZsbOQjQ5CCDPzzuMRHuq8F9gm1/5hC6k85yAVDz6Sse HRsOnH4z/Vq17zc1jSREPEVL/o8Ba6z0KxO3N8Y8J/EC0csFJWYq04yHFlzCjrwV+6KJ D6Pw== X-Gm-Message-State: AOJu0YyM/xwXGcFu/GFrGNIiWgt7za+63gKd7fZYzVqIgNl6tkwqKurA 59VL6dQNFGNTLnOe68mNGhg= X-Google-Smtp-Source: AGHT+IFOptOJC92SSF6kU4qeJrgeqnwQZ+/JFUt1ALKQkktmvV+CGMCWJNxRRFxWhtFL8YHfMo1Ovw== X-Received: by 2002:a17:903:18e:b0:1ce:1674:fd15 with SMTP id z14-20020a170903018e00b001ce1674fd15mr14616727plg.65.1700234022034; Fri, 17 Nov 2023 07:13:42 -0800 (PST) Received: from [172.31.0.109] ([136.36.130.248]) by smtp.gmail.com with ESMTPSA id j5-20020a170902c3c500b001b896d0eb3dsm1507323plj.8.2023.11.17.07.13.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 17 Nov 2023 07:13:40 -0800 (PST) Message-ID: Date: Fri, 17 Nov 2023 08:13:35 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] RISC-V: Fix bug of tuple move splitter[PR112561] Content-Language: en-US To: Kito Cheng , "juzhe.zhong@rivai.ai" Cc: "Kito.cheng" , Robin Dapp , gcc-patches References: <20231117073549.1841897-1-juzhe.zhong@rivai.ai> From: Jeff Law In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.3 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 11/17/23 07:18, Kito Cheng wrote: > I didn’t take a closer look yet on the ira/lra dump yet, but my feeling > is that may cause by the earlyclober modifier isn’t work as expect? > > Let me take closer look tomorrow. Remember that constraints aren't checked until register allocation. So the combiner, splitters, etc don't know about "earlyclobber". It's a relatively common goof. Not sure if that's playing a role here, but I've seen it happen several times in the past. Jeff