1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/class_dummy_2.f03 b/gcc/testsuite/gfortran.dg/class_dummy_2.f03
new file mode 100644
index 000000000..c1735822b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/class_dummy_2.f03
@@ -0,0 +1,33 @@
+! { dg-do run }
+!
+! PR 45674: [OOP] Undefined references for extended types
+!
+! Contributed by Dietmar Ebner <dietmar.ebner@gmail.com>
+
+module fails_mod
+  implicit none 
+  type :: a_t
+     integer :: a
+  end type
+  type, extends(a_t) :: b_t
+     integer :: b
+  end type
+contains
+  subroutine foo(a)
+    class(a_t) :: a
+  end subroutine foo
+end module fails_mod
+
+module fails_test
+  implicit none
+contains
+  subroutine bar
+    use fails_mod
+    type(b_t) :: b
+    call foo(b)
+  end subroutine bar
+end module fails_test
+
+end
+
+! { dg-final { cleanup-modules "fails_mod fails_test" } }