From patchwork Fri Jun 16 13:43:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tobias Burnus X-Patchwork-Id: 1795908 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=8.43.85.97; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Received: from sourceware.org (ip-8-43-85-97.sourceware.org [8.43.85.97]) (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 4QjL3F4ykxz20ZB for ; Fri, 16 Jun 2023 23:43:37 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id BECED3858035 for ; Fri, 16 Jun 2023 13:43:35 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from esa1.mentor.iphmx.com (esa1.mentor.iphmx.com [68.232.129.153]) by sourceware.org (Postfix) with ESMTPS id 0EF993858D35 for ; Fri, 16 Jun 2023 13:43:22 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 0EF993858D35 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=codesourcery.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=mentor.com X-IronPort-AV: E=Sophos;i="6.00,247,1681200000"; d="diff'?scan'208";a="10098963" Received: from orw-gwy-02-in.mentorg.com ([192.94.38.167]) by esa1.mentor.iphmx.com with ESMTP; 16 Jun 2023 05:43:21 -0800 IronPort-SDR: 3DZOeBLQcFoJqplQb17hn9V4OMSfjqcxQhRmPf6hKpB5j4Jc1q+kMIm1HzmlGeacYfZCQAsDyc 1nmFPNFgoGCEnUG/meCYHlcBxSwebsdQXsv8bki23TFkuJOnzlfkasBQTNKHem74CaPBIDXkAW ksHRTh31w1P9PVZCWtdX7czHOo2UJ0XtfJ8LQHONrlOOJAMf8G0KJK39+md02geunwKYM+Gqft fN24uGo3ZjhgVAFzVYgD9DGP3P2UCuDrg+YGV03qRLxAY4eZDxVfgrv/fWBv8HBXdU9IG4FEoY XbE= Message-ID: <675b9052-5688-6079-2300-86e51f7939b1@codesourcery.com> Date: Fri, 16 Jun 2023 15:43:16 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 Content-Language: en-US To: gcc-patches , Gerald Pfeifer , Thomas Schwinge From: Tobias Burnus Subject: [wwwdocs] gcc-14/changes.htm - Offloading: -lm/-lgfortran is autolinked X-Originating-IP: [137.202.0.90] X-ClientProxiedBy: svr-ies-mbx-12.mgc.mentorg.com (139.181.222.12) To svr-ies-mbx-12.mgc.mentorg.com (139.181.222.12) X-Spam-Status: No, score=-11.3 required=5.0 tests=BAYES_00, GIT_PATCH_0, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, KAM_SHORT, SPF_HELO_PASS, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE 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: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" Thomas recently improved the offload experience by avoiding to use, e.g. gfortran -O3 -fopenmp qcd.f90 -lblas -foffload-options="-lgfortran -lm" as libm and libgfortran now automatically get linked as 'gfortran' links -lgfortran and -lm on the host (only those libraries, not others). Thus, the commandline now looks much more natural: gfortran -O3 -fopenmp qcd.f90 -lblas → https.//gcc.gnu.org/r14-1807-g4bcb46b3ade179 for the code change. Attached patch documents it in the release notes. I loved to hear comments, suggestions, improvements (or even appraisals). If not, I just will commit it eventually as is - and it has to be improved later on ... Tobias ----------------- Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955 gcc-14/changes.htm - Offloading: -lm/-lgfortran is autolinked diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html index c403c94f..96653f05 100644 --- a/htdocs/gcc-14/changes.html +++ b/htdocs/gcc-14/changes.html @@ -51,6 +51,15 @@ a work-in-progress.

was extended. + +
  • For offload-device code generated via OpenMP and OpenACC, the math + library and the Fortran runtime library will now automatically be linked, + when the user or compiler links them on the host side. Thus, it is no + longer required to explicitly pass -lm and/or + -lgfortran to the offload-device linker using the -foffload-options= flag. +

    • New Languages and Language specific improvements