From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 4A0EB3858D34; Mon, 27 Apr 2020 17:26:21 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4A0EB3858D34 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1588008381; bh=ZXt36C0+zgCh6qvpYJpNnEOlrN6Me/yIH+pHeyBUppY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=j4v91OUC+m7FjxbwAfMGitcP13uLpDVJ3SNdcJ+ZcGTgqHXvXzcXhxCt+5ZPR7bQy 3UinGVEPpyYiTPYMgP7k460u8/mMTurThFF7o/9AR3caMXJnThK+jnK/V6JZq1OfVL 91oJKmJEiWFJI+IcyB78ZmRmSpJXmzR0id70kc6s= From: "tkoenig at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/94788] [10 Regression] Severe regression leading to double free in tcache Date: Mon, 27 Apr 2020 17:26:21 +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: 10.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: tkoenig at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P4 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 10.0 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: Mon, 27 Apr 2020 17:26:21 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94788 --- Comment #8 from Thomas Koenig --- I'd like to understand what went wrong here... I suspect that the fix exposed another bug somewhere :-( Is it possible to isolate a test case like that? If that is the offending patch, I think it is probably about a pointer to a variable of a derived type, either via a function or as an argument (look at the test case to see what the patch fixes).=