From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from nikam.ms.mff.cuni.cz (nikam.ms.mff.cuni.cz [195.113.20.16]) by sourceware.org (Postfix) with ESMTPS id 460DF3858D33 for ; Wed, 17 Jan 2024 17:29:45 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 460DF3858D33 Authentication-Results: sourceware.org; dmarc=fail (p=none dis=none) header.from=ucw.cz Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=kam.mff.cuni.cz ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 460DF3858D33 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=195.113.20.16 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1705512588; cv=none; b=GVtNFBOgZXAZAcb6Z/oVcWKzIcoBzrEJ4ZXME6iKvbj2Zbrncxm79Qh1wA2uKZ3vilXsiRE3rVnDlZVG2nIYDi99vL0u0AFvFmqmT28Bna97aqniMh208ebNPG/5uESyBcuec8uuUbLd6hNBKHbncubsiqyRimRDULpAAkBLHe8= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1705512588; c=relaxed/simple; bh=tCwzpZdL2udjSuGJgCRUu60VqTZ3+StCXhZB1VUU8dc=; h=DKIM-Signature:Date:From:To:Subject:Message-ID:MIME-Version; b=dGZXa7AP2eQY05k3tC4z8Bv3++eVcHcqBt2p/ARyIIWFuScxTNMT/km6EgQMuTDyap5zdxMM0mdniagxqYCdol3RQ60m6QNkK9os6YHCNNphNluBaDzGJiG0wmRqdgQ4WKoajLAMRyLm51jEN2F7n6muFecEByt/SlqyKB/WIPM= ARC-Authentication-Results: i=1; server2.sourceware.org Received: by nikam.ms.mff.cuni.cz (Postfix, from userid 16202) id E3995283B64; Wed, 17 Jan 2024 18:29:43 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ucw.cz; s=gen1; t=1705512583; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=o+9r/Oqg9dsgrYoYIgEYIgV/T8jPn/V0A2vkJyqVBes=; b=i/gvPKryNU2VEFjjJHxauSF3Hf7gNYC4PmsZR2NYzPxOPzsyWDUEqitIsk+Ts0z5x1f41M rJ8GRaDR2FXQKQTqy2zl6ApHvI+7ipgqaQi/b8NCWUG2QZ/BclPAEadoWio6DY5drusut2 sbeNaPlE+jpcHbBV8N5dh2Y17dWR2LA= Date: Wed, 17 Jan 2024 18:29:43 +0100 From: Jan Hubicka To: Hongtao Liu Cc: gcc-patches@gcc.gnu.org, hongtao.liu@intel.com, hongjiu.lu@intel.com, "Zhang, Annita" Subject: Re: Disable FMADD in chains for Zen4 and generic Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,JMQ_SPF_NEUTRAL,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE 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: > Can we backport the patch(at least the generic part) to > GCC11/GCC12/GCC13 release branch? Yes, the periodic testers has took the change and as far as I can tell, there are no surprises. Thanks, Honza > > > > > > > > /* X86_TUNE_AVOID_512FMA_CHAINS: Avoid creating loops with tight 512bit or > > > > smaller FMA chain. */ > > > > > > > > > > > > -- > > > BR, > > > Hongtao > > > > -- > BR, > Hongtao