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 3D6AB3850B20 for ; Tue, 6 Dec 2022 11:24:57 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 3D6AB3850B20 Authentication-Results: sourceware.org; dmarc=fail (p=none dis=none) header.from=ucw.cz Authentication-Results: sourceware.org; spf=none smtp.mailfrom=kam.mff.cuni.cz Received: by nikam.ms.mff.cuni.cz (Postfix, from userid 16202) id 15391284AB4; Tue, 6 Dec 2022 12:24:55 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ucw.cz; s=gen1; t=1670325895; 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=XzOXHBozrT8LY+S0Laogpw+gx2hBM2pQ2i8x4rBby6E=; b=bQKQkrhsKKtH/7mjbqfBkDktApQUTaLRsC74gx45dpkIT9hM20WZAz+Ng6TRtRv3TEeuqN SdX2KJaTA8snPbr7b+9hxasrKymfa4EXt6HYX4AxYVisDCZ/gSb1bvB03SHivHqKQUWdM4 DxUPGEv3x2Z3l+fu2EXj6spGZMEp3Rc= Date: Tue, 6 Dec 2022 12:24:55 +0100 From: Jan Hubicka To: Richard Biener Cc: gcc-patches@gcc.gnu.org, mjambor@suse.cz, Alexander Monakov , "Kumar, Venkataramanan" , Tejas Sanjay Subject: Re: Zen4 tuning part 1 - cost tables 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=-5.2 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,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: > > - COSTS_N_INSNS (5), /* cost of FADD and FSUB insns. */ > > - COSTS_N_INSNS (5), /* cost of FMUL instruction. */ > > + COSTS_N_INSNS (7), /* cost of FADD and FSUB insns. */ > > + COSTS_N_INSNS (7), /* cost of FMUL instruction. */ > > /* Latency of fdiv is 8-15. */ > > COSTS_N_INSNS (15), /* cost of FDIV instruction. */ > > COSTS_N_INSNS (1), /* cost of FABS instruction. */ > > COSTS_N_INSNS (1), /* cost of FCHS instruction. */ > > /* Latency of fsqrt is 4-10. */ > > the above comment looks like it needs updating as well You are right. I will go through the comments for all zen revisions incrementally. Many of them are outdated are still referes to znver1. Honza