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 D2DE43950432; Wed, 24 Feb 2021 15:18:19 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D2DE43950432
From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/99226] [11 Regression] ICE in expand_expr_real_1, at
 expr.c:10279
Date: Wed, 24 Feb 2021 15:18:19 +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: 11.0
X-Bugzilla-Keywords: accepts-invalid, openmp
X-Bugzilla-Severity: normal
X-Bugzilla-Who: burnus at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P4
X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-99226-4-PpPUr3lDOs@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-99226-4@http.gcc.gnu.org/bugzilla/>
References: <bug-99226-4@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
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Wed, 24 Feb 2021 15:18:19 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99226

--- Comment #5 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #3)
> So, either we diagnose ...  in check_omp_nesting_restrictions.

See comment 4.

 * * *

Only for completeness,
the ICE is itself is due to: '.omp_data_i' showing up in 'sub' and not only=
 in
'sub_._omp_fn.0'. This only occurs with -O1 (and higher) and
-fdump-tree-omplower shows:
  void sub (integer(kind=3D4) & restrict n)
  {
    integer(kind=3D4) i;
    {
      D.3961 =3D .omp_data_i->D.3941;  // <<< WRONG!!!
Codewise, the '!optimize' occurs via gimplify.c's lookup_tmp_var
if is_formal=3Dtrue =E2=80=93 as called by 'get_formal_tmp_var'.=