1 files changed, 48 insertions, 0 deletions
diff --git a/gcc/testsuite/gnat.dg/specs/size_clause1.ads b/gcc/testsuite/gnat.dg/specs/size_clause1.ads
new file mode 100644
index 000000000..5b8417ea7
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/specs/size_clause1.ads
@@ -0,0 +1,48 @@
+-- { dg-do compile }
+
+package Size_Clause1 is
+
+  -- The record inherits the alignment of Integer, which is 4, so
+  -- the real size is 64 instead of 40.  That's OK, as long as the
+  -- size of a component of type R1 in a packed record is 40.
+  type R1 is record
+    I : Integer;
+    B : Boolean;
+  end record;
+  for R1'Size use 40;
+
+  type S1 is record
+    rr : R1; -- size must be 40
+  end record;
+  pragma Pack(S1);
+
+  -- The record is explicitly given alignment 1 so its real type is 40 too.
+  -- The size of a component of type R2 in a packed record is naturally 40.
+  type R2 is record
+    I : Integer;
+    B : Boolean;
+  end record;
+  for R2'Size use 40;
+  for R2'Alignment use 1;
+
+  type S2 is record
+    rr : R2; -- size must be 40
+  end record;
+  pragma Pack(S2);
+
+  -- The record is explicitly given alignment 4 so its real type is 64.
+  -- That's OK, as long as the size of a component of type R3 in a packed
+  -- record is 40.
+  type R3 is record
+    I : Integer;
+    B : Boolean;
+  end record;
+  for R3'Size use 40;
+  for R3'Alignment use 4;
+
+  type S3 is record
+    rr : R3; -- size must be 40
+  end record;
+  pragma Pack(S3);
+
+end Size_Clause1;