From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by sourceware.org (Postfix) with ESMTPS id 1E6C5385840D for ; Wed, 24 Apr 2024 14:12:03 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 1E6C5385840D 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 1E6C5385840D Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2a00:1450:4864:20::52f ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1713967925; cv=none; b=uKBY4fNFWrQm0G5JX/WcnXpYWBi4ocKFKm4QXQyWpAqF5PSlvNc2cMKtdHKlkAxWNZmG12/rX6ca316dpvDrhIb+2etdxaO1IBfXDbfl06ep6P9fWc8OmfF1qhIKPYNozUy+tS3frGpmMmNmeqnfn1HTFGj7o2z9Oz3A322RwWE= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1713967925; c=relaxed/simple; bh=Ua7vFTj1L1uxO5dGcbg3Ny45PWR3s/uxc6Sx4o2/SlQ=; h=DKIM-Signature:Message-ID:Date:MIME-Version:Subject:To:From; b=x48E7B+NUrylhgfHvds6S4E26PToR6nS4sme75VsFjHpa2EKXBAouqjN2puS8iDzAwx4mXuG8g6qQ0f51Q7qN+pgXZ9tS7W6atKJXg3KiniRUHJTVWMP0+R2/aNp8PP7AtwD6wogWkM6J86eSS1SzuKsWQbrupnVsLNKO+lv7ys= ARC-Authentication-Results: i=1; server2.sourceware.org Received: by mail-ed1-x52f.google.com with SMTP id 4fb4d7f45d1cf-5708d8beec6so8026060a12.0 for ; Wed, 24 Apr 2024 07:12:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1713967922; x=1714572722; darn=gcc.gnu.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:cc:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=nU8JvUoDYaWo0ew5GyAXsROz08Mx4POHgkvHvNw4bPM=; b=LylUAHOnAkPI56L78TelhsxdZ/6MGIYI0c2BdtMajvNFoVqBTyMY+7mE1Cf/9xnCBq ITbAFoittLJoQWrQ65bvObMasO1U1jHnmBgpRBclWdHzp5FbLWocXP6YKEXIM1yUqBoS cSaJjWo1eHiepp4WTgN21Ulggnpxee6/XgDfzvSE+1EfzOnkQBdQaH7mgYhzpIdnhZIJ hlcDB6z/gH06ARE9IsL0eDc0UvmCBf6JI1m9Ch71a5TWDP/XtUi46jyqHE2e6ViVIlsl AKgSlvR7xTSnWJKamkfAMiHmAo7ptSq14pcDGnj7DfH4cnZLF1WsV75TK3TfdJlnIuw8 WABg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713967922; x=1714572722; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:cc:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=nU8JvUoDYaWo0ew5GyAXsROz08Mx4POHgkvHvNw4bPM=; b=mJtAl9gULjvZjJ6gPhzuoLVABOSomWtKNLDhXjFro0cIzSQWLC3LU1r8r/GL08ak4n FnFdlHktJbUoTXdDevNbDoHq51+Sy9xTL/iCX/jpLDCzsJtQgR3Dp9aQjN7l3UeAa3AU DBrSpI5xtdlZDR866rxXFBwWbVap7g5wv/qwk+1sBpNdlDnwVryrin+9vT60fPIp/CqV vayzo6RK03YERR+b+ejhS9Uy1T62AW00/PBtrmQ4GBpb1g995+Rcixh1JPhMrrGGpdBR Fq0lR2qc3Erbv82PlCrBjTsfju4tZq1zDfgn0zMo/qG9Wj/NXQcPDA7s7uygUYrmHKSC kepw== X-Forwarded-Encrypted: i=1; AJvYcCX2w2BdTBLiAxhqM1ivd2soQKMRHACZ8B3vFiHEREKS1PtKykD/OsjfwvBpEhve97V6/ueUgo4Y8eJbtHM0EA0yGIEb9GJu/Q== X-Gm-Message-State: AOJu0YwuaOLc+VP8UpbawAMsuXkGuvxl3961zW47E2tB3hFPHbUN/2oF g3WzoPmSeop4quzgsHgk60mygiRV/ksZUGztEWKlviJ7tebG9eRx X-Google-Smtp-Source: AGHT+IFU2Nrq7dJxlPdoWCmSb4k6RPnNmUDXtM7wCkofK5fkt1q6AflJkpoAwX4wS+a0cnlQZdFlpw== X-Received: by 2002:a50:cd9b:0:b0:56c:522f:53e1 with SMTP id p27-20020a50cd9b000000b0056c522f53e1mr2508844edi.17.1713967921396; Wed, 24 Apr 2024 07:12:01 -0700 (PDT) Received: from [192.168.1.23] (ip-149-172-150-237.um42.pools.vodafone-ip.de. [149.172.150.237]) by smtp.gmail.com with ESMTPSA id n2-20020a056402434200b00571fcfee3d1sm4537893edc.9.2024.04.24.07.12.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Apr 2024 07:12:00 -0700 (PDT) Message-ID: Date: Wed, 24 Apr 2024 16:12:00 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: rdapp.gcc@gmail.com, juzhe.zhong@rivai.ai, kito.cheng@gmail.com Subject: Re: [PATCH v1] Revert "RISC-V: Support highpart register overlap for vwcvt" To: pan2.li@intel.com, gcc-patches@gcc.gnu.org References: <20240424125859.994208-1-pan2.li@intel.com> Content-Language: en-US From: Robin Dapp In-Reply-To: <20240424125859.994208-1-pan2.li@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-3.0 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 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: > (define_insn "@pred_vwsll_scalar" > - [(set (match_operand:VWEXTI 0 "register_operand" "=vd, vr, vd, vr, vd, vr, vd, vr, vd, vr, vd, vr, ?&vr, ?&vr") > + [(set (match_operand:VWEXTI 0 "register_operand" "=vr, vr") Just noticed, not a problem of the revert but wasn't that wrong before without the early-clobber? vwsll.vx v0, v0, a0 for LMUL = 2 would be allowed but should not? We probably don't have tests for this, in particular runtime? Regards Robin