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=-6.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 78B84C433E7 for ; Thu, 15 Oct 2020 13:59:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B40922248 for ; Thu, 15 Oct 2020 13:59:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388209AbgJON7t (ORCPT ); Thu, 15 Oct 2020 09:59:49 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:64489 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388133AbgJON7q (ORCPT ); Thu, 15 Oct 2020 09:59:46 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4CBrWM2FxTzB09bD; Thu, 15 Oct 2020 15:59:43 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id l9LN1soMzp6U; Thu, 15 Oct 2020 15:59:43 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4CBrWM1QpszB09bB; Thu, 15 Oct 2020 15:59:43 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id D0E878B813; Thu, 15 Oct 2020 15:59:44 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id xOoSsjkuF602; Thu, 15 Oct 2020 15:59:44 +0200 (CEST) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id F16278B811; Thu, 15 Oct 2020 15:59:43 +0200 (CEST) Subject: Re: [PATCH] powerpc: force inlining of csum_partial() to avoid multiple csum_partial() with GCC10 To: Segher Boessenkool Cc: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org References: <20201015132512.GG2672@gate.crashing.org> From: Christophe Leroy Message-ID: Date: Thu, 15 Oct 2020 15:59:44 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 MIME-Version: 1.0 In-Reply-To: <20201015132512.GG2672@gate.crashing.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 15/10/2020 à 15:25, Segher Boessenkool a écrit : > Hi! > > On Thu, Oct 15, 2020 at 10:52:20AM +0000, Christophe Leroy wrote: >> With gcc9 I get: > > > >> With gcc10 I get: > > > >> gcc10 defines multiple versions of csum_partial() which are just >> an unconditionnal branch to __csum_partial(). > > It doesn't inline it, yes. > > Could you open a GCC PR for this please? > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97445 Christophe