1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gnat.dg/unc.adb b/gcc/testsuite/gnat.dg/unc.adb
new file mode 100644
index 000000000..c75dfbe66
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/unc.adb
@@ -0,0 +1,26 @@
+-- { dg-do compile }
+
+with Ada.Streams.Stream_IO; use Ada.Streams.Stream_IO;
+procedure Unc is
+   type Arr is array (1..4) of integer;
+   type Bytes is array (positive range <>) of Character;
+   type Buffer (D : Boolean := False) is record
+      case D is 
+        when False =>
+           Chars: Bytes (1..16);
+        when True =>
+           Values : Arr;
+      end case;
+   end record;
+--
+   pragma Unchecked_Union (Buffer);
+   pragma Warnings (Off);
+   Val : Buffer;
+--      
+   F : File_Type;
+   S : Stream_Access;
+begin
+   Create (F, Out_File);
+   S := Stream (F);
+   Buffer'Output (S, Val);
+end;