From patchwork Thu Oct 15 11:58:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Hubicka X-Patchwork-Id: 1382586 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=sourceware.org; envelope-from=gcc-patches-bounces@gcc.gnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ucw.cz Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CBnqW4xxcz9sTL for ; Thu, 15 Oct 2020 22:58:29 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 3EEDB3857C62; Thu, 15 Oct 2020 11:58:27 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from nikam.ms.mff.cuni.cz (nikam.ms.mff.cuni.cz [195.113.20.16]) by sourceware.org (Postfix) with ESMTPS id 5D0723857015 for ; Thu, 15 Oct 2020 11:58:24 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 5D0723857015 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: sourceware.org; spf=none smtp.mailfrom=hubicka@kam.mff.cuni.cz Received: by nikam.ms.mff.cuni.cz (Postfix, from userid 16202) id F261A280BB3; Thu, 15 Oct 2020 13:58:21 +0200 (CEST) Date: Thu, 15 Oct 2020 13:58:21 +0200 From: Jan Hubicka To: gcc-patches@gcc.gnu.org, rguenther@suse.de Subject: Fix toplevel comment in attr-fnspec.h Message-ID: <20201015115821.GA83564@kam.mff.cuni.cz> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) X-Spam-Status: No, score=-14.6 required=5.0 tests=BAYES_00, GIT_PATCH_0, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces@gcc.gnu.org Sender: "Gcc-patches" Hi, this patch fixes some confussion I managed to introduce into the toplevel comment. OK? Honza * attr-fnspec.h: Fix toplevel comment. diff --git a/gcc/attr-fnspec.h b/gcc/attr-fnspec.h index 921bb48ae6a..30c0becfdf2 100644 --- a/gcc/attr-fnspec.h +++ b/gcc/attr-fnspec.h @@ -30,12 +30,11 @@ character 2+2i specifies properties of argument number i as follows: 'x' or 'X' specifies that parameter is unused. - 'r' or 'R' specifies that parameter is only read and memory pointed to is - never dereferenced. - 'w' or 'W' specifies that parameter is only written to. + 'r' or 'R' specifies that parameter is only read and it does not escape + 'w' or 'W' specifies that parameter does not escape '.' specifies that nothing is known. - The uppercase letter in addition specifies that parameter - is non-escaping. + The uppercase letter in addition specifies that parameter is read/written + only dirrectly (i.e. *param is ok, but **param is not) character 3+2i specifies additional properties of argument number i as follows: