1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/gnat.dg/in_out_parameter3.adb b/gcc/testsuite/gnat.dg/in_out_parameter3.adb
new file mode 100644
index 000000000..dab3f8d52
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/in_out_parameter3.adb
@@ -0,0 +1,42 @@
+-- { dg-do run }
+-- { dg-options "-gnat12" }
+
+procedure In_Out_Parameter3 is
+
+  type Arr is array (1..16) of Integer;
+
+  type Rec1 is record
+    A : Arr;
+    B : Boolean;
+  end record;
+
+  type Rec2 is record
+    R : Rec1;
+  end record;
+  pragma Pack (Rec2);
+
+  function F (I : In Out Rec1) return Boolean is
+    A : Integer := I.A (1);
+  begin
+    I.A (1) := I.A (1) + 1;
+    return (A > 0);
+  end;
+
+  I : Rec2 := (R => (A => (others => 0), B => True));
+  B : Boolean;
+
+begin
+  B := F (I.R);
+  if B then
+    raise Program_Error;
+  end if;
+  if I.R.A (1) /= 1 then
+    raise Program_Error;
+  end if;
+  if F (I.R) = False then
+     raise Program_Error;
+  end if;
+  if I.R.A (1) /= 2 then
+    raise Program_Error;
+  end if;
+end;