From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A24C1385DC33; Sat, 16 Jan 2021 00:41:56 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A24C1385DC33 From: "Bahram.shahrooz at uc dot edu" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/98701] I compiled a program with gfortran on Mac (Big Sur, version 11.1) and g77 on Windows 10. I get two very different results for identical input files with the results from the one compiled by gfortran being wrong. Date: Sat, 16 Jan 2021 00:41:56 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 10.2.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: Bahram.shahrooz at uc dot edu X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 16 Jan 2021 00:41:56 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98701 --- Comment #4 from Bahram.shahrooz at uc dot edu --- I compiled with the suggested options (below) and now the code gives the sa= me result as g77. -fcheck=3Dall -ffpe-trap=3Dzero,invalid Things look good now! Sorry for starting this bug report prematurely, and many thanks for your help!!!=