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 1B617385800B; Sat, 30 Jan 2021 00:13:58 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1B617385800B
From: "damian at sourceryinstitute dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/98897] New: Erroneous procedure attribute for associate
 name
Date: Sat, 30 Jan 2021 00:13:57 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: damian at sourceryinstitute dot org
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: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-98897-4@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: Sat, 30 Jan 2021 00:13:58 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98897

            Bug ID: 98897
           Summary: Erroneous procedure attribute for associate name
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: damian at sourceryinstitute dot org
  Target Milestone: ---

The behavior demonstrated below also occurs if the procedure definition is
moved to a submodule.  Workarounds include (1) declaring "output_data" as a
variable instead of an associate name or (2) making "output" a function
referencing it as such instead of calling it as a subroutine.

% cat bug.f90=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20
module output_data_m
  implicit none

  type output_data_t
  contains
    procedure output
  end type

  interface
    module subroutine output(self)
      implicit none
      class(output_data_t) self
    end subroutine
  end interface

contains
  module procedure output
  end procedure
end module

  use output_data_m
  implicit none
  associate(output_data =3D> output_data_t())
    call output_data%output
  end associate
end

% gfortran bug.f90
bug.f90:24:20:

   24 |     call output_data%output
      |                    1
Error: VARIABLE attribute of =E2=80=98output_data=E2=80=99 conflicts with P=
ROCEDURE attribute
at (1)

% gfortran --version
GNU Fortran (GCC) 11.0.0 20201231 (experimental)=