From patchwork Wed Aug 9 06:11:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tsukasa OI X-Patchwork-Id: 1819147 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=server2.sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=isy3i6Jt; dkim-atps=neutral Received: from server2.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 ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RLKW63c9nz1yfB for ; Wed, 9 Aug 2023 16:13:38 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 805E53857732 for ; Wed, 9 Aug 2023 06:13:36 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 805E53857732 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1691561616; bh=gHrdmNJCoAiZHX2OcysJrxZHdUBSb+/Zac2GVNUYWaY=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=isy3i6Jt0iIOffcrDchPbGyjMaR5fajqlrv23e+QyL/AUWZ0e6bzYxzqCuTNXcZa+ BWFdnBkVEUkXZ4Tx+zceCI2YcFYpabLZIkh+0tjwi9xn8wIHLVtXEN8Zx4yxvpytx/ OmE4BdlyZL6L+Y2ZNqsyJB9+A/5YhIb3EVgz59ys= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mail-sender-0.a4lg.com (mail-sender.a4lg.com [153.120.152.154]) by sourceware.org (Postfix) with ESMTPS id AD91E3858289 for ; Wed, 9 Aug 2023 06:12:22 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org AD91E3858289 Received: from [127.0.0.1] (localhost [127.0.0.1]) by mail-sender-0.a4lg.com (Postfix) with ESMTPSA id 08DA2300089; Wed, 9 Aug 2023 06:12:21 +0000 (UTC) To: Tsukasa OI , Kito Cheng , Palmer Dabbelt , Andrew Waterman , Jim Wilson Cc: gcc-patches@gcc.gnu.org Subject: [RFC PATCH 2/2] RISC-V: Fix documentation of __builtin_riscv_pause Date: Wed, 9 Aug 2023 06:11:51 +0000 Message-ID: <9bf2e7d86cbdb2d4b3956926b1db3061f701c80c.1691561509.git.research_trasio@irq.a4lg.com> In-Reply-To: References: Mime-Version: 1.0 X-Spam-Status: No, score=-12.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, GIT_PATCH_0, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) 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: , X-Patchwork-Original-From: Tsukasa OI via Gcc-patches From: Tsukasa OI Reply-To: Tsukasa OI Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" From: Tsukasa OI This built-in does not imply the 'Xgnuzihintpausestate' extension. It does not change architectural state (because all HINTs are prohibited from doing that). gcc/ChangeLog: * doc/extend.texi: Fix the description of __builtin_riscv_pause. --- gcc/doc/extend.texi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 89c5b4ea2b20..7ebbe70c78d6 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -21570,9 +21570,9 @@ Returns the value that is currently set in the @samp{tp} register. @enddefbuiltin @defbuiltin{void __builtin_riscv_pause (void)} -Generates the @code{pause} (hint) machine instruction. This implies the -Xgnuzihintpausestate extension, which redefines the @code{pause} instruction to -change architectural state. +Generates the @code{pause} (hint) machine instruction. If the target implements +the Zihintpause extension, it indicates that the current hart should be +temporarily paused or slowed down. @enddefbuiltin @node RISC-V Vector Intrinsics