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 E777D3858C41; Tue,  5 Mar 2024 11:00:11 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E777D3858C41
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1709636412;
	bh=tXDQJR7s3jE3VEF9G6cuVGVRinzZsYiWWEMfeb7OOcQ=;
	h=From:To:Subject:Date:From;
	b=M0MhT1xYBL/PEIqKTHBB94Wmgcqc5xbsL5CO32jqowa+6I9dC1aCOsz3vWchEtKLG
	 QrDKXLqlpI2L5Yi8Ok3Peygzc3jdtbnWJhrCS6ErKOepT6Yc3TOkY28/Grmw9ePt5f
	 AOPyfjSVBGJM2NWD8Vj3hnh6kR81LQSEXnlhad6o=
From: "Bader at lrz dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/114235] New: Object undefined is specific procedure for
 generic overload in abstract type
Date: Tue, 05 Mar 2024 11:00:10 +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: 13.1.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: Bader at lrz dot de
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
 attachments.created
Message-ID: <bug-114235-4@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=3D114235

            Bug ID: 114235
           Summary: Object undefined is specific procedure for generic
                    overload in abstract type
           Product: gcc
           Version: 13.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: Bader at lrz dot de
  Target Milestone: ---

Created attachment 57613
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57613&action=3Dedit
test case for overloaded addition in an abstract type

The attached program fails with a segmentation fault. Compilation with=20
gfortran-13 -g -fbacktrace -Wall -Wextra abstract_overload_01_pos.f90=20
yields and executable the execution of which produces the following stack
trace:

Backtrace for this error:
#0  0x7faaea5408c0 in ???
#1  0x7faaea53fa75 in ???
#2  0x7faae9b8f03f in ???
#3  0x7faaeae012a3 in __mod_r_MOD_add_r
        at
/home/reinhold/a2832ba/Documents/fortran_tests/f03/object_oriented/generic_=
tbps/abstract_overload_01_pos.f90:38
#4  0x7faaeae01dc3 in p_t
        at
/home/reinhold/a2832ba/Documents/fortran_tests/f03/object_oriented/generic_=
tbps/abstract_overload_01_pos.f90:57
#5  0x7faaeae021ca in main
        at
/home/reinhold/a2832ba/Documents/fortran_tests/f03/object_oriented/generic_=
tbps/abstract_overload_01_pos.f90:44
Segmentation fault (core dumped)

Uncommenting the debug writeout in line 37 reveals that t2%vec is not alloc=
ated
contrary to the fact that the actual argument's component is indeed allocat=
ed
prior to invocation of the generic addition.=