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 CD7FF3858D35; Tue,  8 Mar 2022 19:25:36 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CD7FF3858D35
From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/104844] New: CLASS actual to assumed-rank TYPE(*)
 wrongly passes declared instead of dynamic type
Date: Tue, 08 Mar 2022 19:25:36 +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: 12.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: burnus at gcc dot gnu.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
 keywords bug_severity priority component assigned_to reporter
 target_milestone
Message-ID: <bug-104844-4@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: Tue, 08 Mar 2022 19:25:36 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104844

            Bug ID: 104844
           Summary: CLASS actual to assumed-rank TYPE(*) wrongly passes
                    declared instead of dynamic type
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
  Target Milestone: ---

The following testcase shows that not the dynamic type but the declared typ=
e is
passed in the call.

Or rather: It shows that decl->elem_len matches the declared type, I have n=
ot
checked the values.



implicit none (type, external)

type t
  integer, allocatable :: a(:,:,:), aa
  integer :: b(5), c
end type t

type t2
   class(t), allocatable :: d(:,:), e
end type t2

type, extends(t2) :: t2e
  integer :: q(7), z
end type t2e

type(t2) :: dummy
class(t2), allocatable :: var
allocate (t2e :: var)
print *, sizeof(dummy), sizeof(var)  ! prints 112 144
call sz_ar(var, var)
contains
  subroutine sz_ar (a, b)
    type(*) :: a(..)
    class(*) :: b(..)
    print *, sizeof(a), sizeof(b) ! prints 112 144 - expected: 144 144
    if (sizeof(a) /=3D sizeof(b)) error stop
  end
end=