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diff --git a/gdb/testsuite/gdb.fortran/oop_extend_type.f90 b/gdb/testsuite/gdb.fortran/oop_extend_type.f90
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+! Copyright 2022 Free Software Foundation, Inc.
+!
+! This program is free software; you can redistribute it and/or modify
+! it under the terms of the GNU General Public License as published by
+! the Free Software Foundation; either version 3 of the License, or
+! (at your option) any later version.
+!
+! This program is distributed in the hope that it will be useful,
+! but WITHOUT ANY WARRANTY; without even the implied warranty of
+! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+! GNU General Public License for more details.
+!
+! You should have received a copy of the GNU General Public License
+! along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+! Test fortran extends feature (also for chained extends).
+module testmod
+    implicit none
+    type :: point
+	real :: coo(3)
+    end type
+
+    type, extends(point) :: waypoint
+	real :: angle
+    end type
+
+    type, extends(waypoint) :: fancywaypoint
+	logical :: is_fancy
+    end type
+end module
+
+program testprog
+    use testmod
+    implicit none
+
+    logical l
+    type(waypoint) :: wp
+    type(fancywaypoint) :: fwp
+    type(waypoint), allocatable :: wp_vla(:)
+
+    l = .FALSE.
+    allocate(wp_vla(3)) ! Before vla allocation
+
+    l = allocated(wp_vla) ! After vla allocation
+
+    wp%angle = 100.00
+    wp%coo(:) = 1.00
+    wp%coo(2) = 2.00
+
+    fwp%is_fancy = .TRUE.
+    fwp%angle = 10.00
+    fwp%coo(:) = 2.00
+    fwp%coo(1) = 1.00
+
+    wp_vla(1)%angle = 101.00
+    wp_vla(1)%coo(:) = 10.00
+    wp_vla(1)%coo(2) = 12.00
+
+    wp_vla(2)%angle = 102.00
+    wp_vla(2)%coo(:) = 20.00
+    wp_vla(2)%coo(2) = 22.00
+
+    wp_vla(3)%angle = 103.00
+    wp_vla(3)%coo(:) = 30.00
+    wp_vla(3)%coo(2) = 32.00
+
+    print *, wp, wp_vla, fwp ! After value assignment
+
+end program