From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 876AAC38A2A for ; Fri, 8 May 2020 11:33:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 62B98206B8 for ; Fri, 8 May 2020 11:33:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="EfKE7YzB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726815AbgEHLdn (ORCPT ); Fri, 8 May 2020 07:33:43 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:37529 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726636AbgEHLdm (ORCPT ); Fri, 8 May 2020 07:33:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588937621; 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=jUaD54dhP6CyORHGARRRLxb30JmQ8bFTb+bifqt8BeQ=; b=EfKE7YzBCND7cfz/NbWWvw8oxSMqms6d43jVkJTqU+TEvQitsCHBfCVPMWVW8m1Hr+dSM3 XofeIeotw2q4TTsg0AQ/X5toSu1oEl/78g+dtqunq3l3Sq5GihnSyXI6+XLChEAss83QEO 53EdggiOe381eV5MinPnK6ddSCmqa5c= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-59-AK-dIrTcMw2yIIF1LWHTgg-1; Fri, 08 May 2020 07:33:39 -0400 X-MC-Unique: AK-dIrTcMw2yIIF1LWHTgg-1 Received: by mail-wm1-f72.google.com with SMTP id o11so2794174wme.8 for ; Fri, 08 May 2020 04:33:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=jUaD54dhP6CyORHGARRRLxb30JmQ8bFTb+bifqt8BeQ=; b=fMTG0pK26DJcAoUoIjHLGA13Hdq+9wEu8opQahISnObFk0RWuqpV0+L7zTd/pd2NUZ PSzCp88Kg1zPRjSy9UlHH/mLEN4sv5zvr4k7cnb38ywn1Am7HqYUyN6P2XkJZWHG+l8e SZk+W7c2cZ4AjO7oiAq8Hwe1EmerBTKKTme03S/ssmfOzkRJuCs+45hVNeIJiUdgKKD0 wYUDels8vA+wllh8GIQ6qo/zoP2si6Tu3AS8oOOHh+w87NMpo45U26hzv/VItkmWJlLZ aOsJtevV9TAFC7zKmeFVtwb6UE6+v43Ys7nNGExRlmiPkK9pd1WaV6ww3fDfjL1+wrN1 pKqA== X-Gm-Message-State: AGi0PuYDSlofH86IEiOJfqJMNaN/BuldTe1Vssvs4ZiSY7l0Yp7QyLwW evsPYj70P7Z7THFwo+I2hnx4gAm/D4aNeP5WzU0csitMUNfzo1f1cs4/3ilpzYmRtRRns6cSrRT N+T6B8z6+Ko2LrF388gOkqu5o X-Received: by 2002:adf:e38b:: with SMTP id e11mr2468109wrm.343.1588937618193; Fri, 08 May 2020 04:33:38 -0700 (PDT) X-Google-Smtp-Source: APiQypLhHfuD+UO7MNp5uy7H5OQHsM6tcVMk7aOaRwpc+SNq3kBZBfJlJcoYssuDF78Ba63ydoy3TQ== X-Received: by 2002:adf:e38b:: with SMTP id e11mr2468092wrm.343.1588937618007; Fri, 08 May 2020 04:33:38 -0700 (PDT) Received: from localhost ([2001:470:5b39:28:1273:be38:bc73:5c36]) by smtp.gmail.com with ESMTPSA id w83sm13378751wmb.37.2020.05.08.04.33.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 May 2020 04:33:37 -0700 (PDT) Date: Fri, 8 May 2020 13:33:36 +0200 From: Oleksandr Natalenko To: "Jason A. Donenfeld" Cc: LKML , X86 ML , Arnd Bergmann , Andrew Morton Subject: Re: [PATCH] Kconfig: default to CC_OPTIMIZE_FOR_PERFORMANCE_O3 for gcc >= 10 Message-ID: <20200508113336.2vdfdnc6tqyx4pu6@butterfly.localdomain> References: <20200507224530.2993316-1-Jason@zx2c4.com> <20200508090202.7s3kcqpvpxx32syu@butterfly.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 08, 2020 at 05:21:47AM -0600, Jason A. Donenfeld wrote: > > Should we untangle -O3 from depending on ARC first maybe? > > Oh, hah, good point. Yes, I'll do that for a v2, but will wait another > day for feedback first. Just keep in mind that my previous attempt [1] failed because of too many false positive warnings despite -O3 really uncovered a couple of bugs in the codebase. Lets hope your attempt will be more successfull. I'll happily offer my review tag ;). Also Cc'ing Andrew who (IIRC) tried to took my sumbission and Arnd who tried to clean up the mess afterwards. [1] https://lore.kernel.org/lkml/20191211104619.114557-1-oleksandr@redhat.com/ -- Best regards, Oleksandr Natalenko (post-factum) Principal Software Maintenance Engineer