1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/gnat.dg/nested_agg_bitfield_constructor.adb b/gcc/testsuite/gnat.dg/nested_agg_bitfield_constructor.adb
new file mode 100644
index 000000000..6015900c5
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/nested_agg_bitfield_constructor.adb
@@ -0,0 +1,34 @@
+-- { dg-do compile }
+-- { dg-options "-gnatws" }
+--              (bits of "Header" unused)
+
+procedure Nested_Agg_Bitfield_Constructor is
+
+    type Uint64 is mod 2 ** 64;
+    type Uint16 is mod 2 ** 16;
+
+    type Time_Stamp is record
+       Sec  : Uint64;
+       Year : Uint16;
+    end record;
+
+    type Msg_Header is record
+       Stamp : Time_Stamp;
+    end record;
+    for Msg_Header use record
+       Stamp at 0 range 0 .. 64+16-1;
+    end record;
+    for Msg_Header'Size use 80;
+
+    type Msg is record
+       Header : Msg_Header;
+    end record;
+
+    for Msg use record
+       Header at 0 range 0 .. 191;
+    end record;
+
+    M : Msg := (Header => (Stamp => (2, 4)));
+begin
+   null;
+end;