1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/class_64.f90 b/gcc/testsuite/gfortran.dg/class_64.f90
new file mode 100644
index 00000000000..059ebaa8a01
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/class_64.f90
@@ -0,0 +1,38 @@
+! { dg-do compile }
+! { dg-options "-fdump-tree-original" }
+!
+! Test the fix for PR80850 in which the _len field was not being
+! set for 'arg' in the call to 'foo'.
+!
+  type :: mytype
+    integer :: i
+  end type
+  class (mytype), pointer :: c
+
+  allocate (c, source = mytype (99_8))
+
+  call foo(c)
+  call bar(c)
+
+  deallocate (c)
+
+contains
+
+  subroutine foo (arg)
+    class(*) :: arg
+    select type (arg)
+      type is (mytype)
+        if (arg%i .ne. 99_8) call abort
+    end select
+  end subroutine
+
+  subroutine bar (arg)
+    class(mytype) :: arg
+    select type (arg)
+      type is (mytype)
+        if (arg%i .ne. 99_8) call abort
+    end select
+  end subroutine
+
+end
+! { dg-final { scan-tree-dump-times "arg.*._len" 1 "original" } }