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=-4.1 required=3.0 tests=BAYES_00,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 75761C433EC for ; Thu, 23 Jul 2020 09:14:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 43CDF22BEF for ; Thu, 23 Jul 2020 09:14:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="KKpKKbbE"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="/NlnNn3/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728296AbgGWJOo (ORCPT ); Thu, 23 Jul 2020 05:14:44 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:56480 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725911AbgGWJOn (ORCPT ); Thu, 23 Jul 2020 05:14:43 -0400 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1595495682; 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=V2ZK9/Df1B3F90/1wjoCaVFTYcpJBDi10j1OGUy5dnQ=; b=KKpKKbbEfyMcoyJpK6W9IaKitQ4a+4w4HvNli5SJQQSjag+4dCCmgJim58f9YEdTCeNwJW N0FU+dtille3S+mlEzs+FANAhh6ixjYqEngK/BFAFRJ9lzrQrIiYphSSoP+OOoMNbNgxgK T1ZajApV/5T1ua9CAgx1MXsh0DTu9OKx2bdvMF5uKnpSBuKI4BkemAk7GHqOiG5A38qggA Ss5vp81lE67Ys+v7WPbACgT0Cms3zcXLT/CYBLkyeEjO9Ube4KPEZbXpXKKvmYnlJYyV+7 g3+JYPqIdEkyPoJodc7R25XJfFjVt+8uVvC9knf0VKOnr0FkuBdXe7mRnN3OKg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1595495682; 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=V2ZK9/Df1B3F90/1wjoCaVFTYcpJBDi10j1OGUy5dnQ=; b=/NlnNn3/JeOA7lIaX6+hR0YBEWA11djJnxyA5bFSWWmCbG1mG4uaveUbtO7FF+sd0y3udL OQG3KWVMR85jdsCg== To: Nick Desaulniers , Ingo Molnar , Borislav Petkov Cc: Dennis Zhou , Tejun Heo , Christoph Lameter , x86@kernel.org, "H. Peter Anvin" , Al Viro , Andrew Morton , Peter Zijlstra , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Nick Desaulniers , Arnd Bergmann , David Woodhouse , Dmitry Golovin , Linus Torvalds Subject: Re: [PATCH v3 11/11] x86: support i386 with Clang In-Reply-To: <20200720204925.3654302-12-ndesaulniers@google.com> References: <20200720204925.3654302-1-ndesaulniers@google.com> <20200720204925.3654302-12-ndesaulniers@google.com> Date: Thu, 23 Jul 2020 11:14:41 +0200 Message-ID: <87365izj7i.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Nick Desaulniers writes: I'm glad I looked myself at this. > We also don't want to swap the use of "=q" with "=r". For 64b, it > doesn't matter. For 32b, it's possible that a 32b register without a 8b > lower alias (i.e. ESI, EDI, EBP) is selected which the assembler will > then reject. The above is really garbage. We don't want? It's simply not possible to do so, because ... 64b,32b,8b. For heavens sake is it too much asked to write a changelog with understandable wording instead of ambiguous abbreviations? There is no maximum character limit for changelogs. Thanks, tglx