From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by sourceware.org (Postfix) with ESMTPS id 8B432398796F; Fri, 15 Jan 2021 19:24:14 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 8B432398796F Received: by mail-wr1-x431.google.com with SMTP id a12so10358450wrv.8; Fri, 15 Jan 2021 11:24:14 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=EI1BpzR68bdXF3gkvtJBFyhVTYjtxsamxKV0GAnf/Y4=; b=TyFXU6rXMk2SW0iU3oIrm8gclFZPhCzLoHlHBaxDGdhJP/BGwr4NKZ0iuwAfl9Hp6X jKgtfZXp2Nc4nByHFGWhoaTGLX66nmQju9cHnUM4A4jgF4QEhn4qmwEfmJSkz3idnUrA z0UdVCVP6IrQaRSAyX6gCVWiWbYU/Rz6TEqJGSSmOTcvBrDpwJdnv5V+hNGA4SA797vh 5thLop2Z77GpszhYm8yj7GDasX2l4Q9fs6PWJqmqD5HPhd3aCSOB+wdv1LUtXRBy6evW DW+I8tUtTzV1DmInmNld/Vuta2XaUV+an65k8hMU+5Gv7iWRj16uSK2WNPDNCZGFNnMI Q5lg== X-Gm-Message-State: AOAM5316tgRd32aAI2tUlOVdyVVPrSGyrll0i32GhNKfwNX2GyhTico2 QxEf6oAtMuqtOIz2OEJkPKI= X-Google-Smtp-Source: ABdhPJwclrbhxemDjXKJG+pNB/GoS11QGfPyOfFGF+O4ejPTuQTiBQH1DU/OqYh4Uuwfv7wvZSYCTw== X-Received: by 2002:a05:6000:1188:: with SMTP id g8mr15119433wrx.111.1610738653647; Fri, 15 Jan 2021 11:24:13 -0800 (PST) Received: from [192.168.1.212] (host81-138-1-83.in-addr.btopenworld.com. [81.138.1.83]) by smtp.googlemail.com with ESMTPSA id w4sm13244477wmc.13.2021.01.15.11.24.12 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 15 Jan 2021 11:24:13 -0800 (PST) Content-Type: text/plain; charset=utf-8; delsp=yes; format=flowed Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: Erroneous results from gfortran From: Iain Sandoe In-Reply-To: Date: Fri, 15 Jan 2021 19:24:11 +0000 Cc: "gcc@gcc.gnu.org" , fortran List Content-Transfer-Encoding: 8bit Message-Id: <3E3D7437-5E88-466D-864C-24048DAFAC46@googlemail.com> References: To: "Shahrooz, Bahram (shahrobm)" X-Mailer: Apple Mail (2.3273) X-Spam-Status: No, score=-3.5 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, KAM_SHORT, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, 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: fortran@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Fortran mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jan 2021 19:24:16 -0000 Hello Professor, Shahrooz, Bahram (shahrobm) via Gcc wrote: > I’ve used gfortran to compile a program on Mac Big Sur using gcc-10.2 and > on Windows 10 using g77. I’ve used -o0 for both cases. The results for > identical input values are vastly different between the two executables > and wrong from gfortran. > > I’m not sure if there’s a big in gfortran or something else is causing > this issue. It is impossible to tell from your description. So far, there is no released version of gfortran that supports the recently released macOS 11 (big sur) update, although Intel versions of the platform would be expected to be supported from 10.3 onwards. > I appreciate if you look into this issue. In order for us to look into the issue we would need to be able to reproduce the problem - so some more information is needed - please see: https://gcc.gnu.org/bugs/ for a description of how to report a bug using https://gcc.gnu.org/bugzilla/ so that we can try to fix examine and fix it. thanks. Iain