decl.c (gnat_to_gnu_entity): Use proper dummy type for the temporary…

decl.c (gnat_to_gnu_entity): Use proper dummy type for the temporary COMPONENT_REF built for a derived...

	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: Use proper
	dummy type for the temporary COMPONENT_REF built for a derived tagged
	type with discriminant.

From-SVN: r190514

gcc/ada/ChangeLog

+2012-08-19  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: Use proper
+	dummy type for the temporary COMPONENT_REF built for a derived tagged
+	type with discriminant.
+
 2012-08-14   Diego Novillo  <dnovillo@google.com>
 
 	Merge from cxx-conversion branch.  Re-implement VEC in C++.

gcc/ada/gcc-interface/decl.c

@@ -2988,6 +2988,7 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
 	if (Present (Parent_Subtype (gnat_entity)))
 	  {
 	    Entity_Id gnat_parent = Parent_Subtype (gnat_entity);
+	    tree gnu_dummy_parent_type = make_node (RECORD_TYPE);
 	    tree gnu_parent;
 
 	    /* A major complexity here is that the parent subtype will
@@ -2999,11 +3000,11 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
 	       each of those discriminants to a COMPONENT_REF of the above
 	       dummy parent referencing the corresponding discriminant of the
 	       base type of the parent subtype.  */
-	    gnu_get_parent = build3 (COMPONENT_REF, void_type_node,
+	    gnu_get_parent = build3 (COMPONENT_REF, gnu_dummy_parent_type,
 				     build0 (PLACEHOLDER_EXPR, gnu_type),
 				     build_decl (input_location,
 						 FIELD_DECL, NULL_TREE,
-						 void_type_node),
+						 gnu_dummy_parent_type),
 				     NULL_TREE);
 
 	    if (has_discr)