From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 5099C385842C; Tue, 17 Oct 2023 17:06:51 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5099C385842C
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1697562411;
	bh=z7njQ7ip0cWIaSa5mfNpIfOMvBYV8ZH/VL20UTeLIys=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=K51gSzfEIzdQqp72RIle63q51udccFg+FZvIPf8u4X80rKzFSZZ4Npwpj69TSLVw7
	 oIcEZdNGCXY06shk8qT+sXIi7GRjhJL836YCcaocpLLGImqj3jPkYG/z9PJVvYc15G
	 Og41cc26EpgKSfheo2HYQHMyiBXzrt3jw/6qKK5I=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/111837] [11/12/13/14 Regression] Out of bounds access
 with optimization inside io-implied-do-control
Date: Tue, 17 Oct 2023 17:06:44 +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: 13.1.1
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P4
X-Bugzilla-Assigned-To: anlauf at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.5
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-111837-4-2AFOOtKAcj@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-111837-4@http.gcc.gnu.org/bugzilla/>
References: <bug-111837-4@http.gcc.gnu.org/bugzilla/>
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
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111837

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:

https://gcc.gnu.org/g:5ac63ec5da2e93226457bea4dbb3a4f78d5d82c2

commit r14-4688-g5ac63ec5da2e93226457bea4dbb3a4f78d5d82c2
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Mon Oct 16 21:02:20 2023 +0200

    Fortran: out of bounds access with nested implied-do IO [PR111837]

    gcc/fortran/ChangeLog:

            PR fortran/111837
            * frontend-passes.cc (traverse_io_block): Dependency check of l=
oop
            nest shall be triangular, not banded.

    gcc/testsuite/ChangeLog:

            PR fortran/111837
            * gfortran.dg/implied_do_io_8.f90: New test.=