--- gcc/tree-data-ref.h	(/gcc-local/trunk)	(revision 30596)
+++ gcc/tree-data-ref.h	(/gcc-local/export-ddg)	(revision 30596)
@@ -323,6 +323,7 @@ extern void dump_data_dependence_directi
 					    enum data_dependence_direction);
 extern void free_dependence_relation (struct data_dependence_relation *);
 extern void free_dependence_relations (VEC (ddr_p, heap) *);
+extern void free_data_ref (struct data_reference *);
 extern void free_data_refs (VEC (data_reference_p, heap) *);
 struct data_reference *create_data_ref (struct loop *, tree, tree, bool);
 bool find_loop_nest (struct loop *, VEC (loop_p, heap) **);
--- gcc/tree-data-ref.c	(/gcc-local/trunk)	(revision 30596)
+++ gcc/tree-data-ref.c	(/gcc-local/export-ddg)	(revision 30596)
@@ -784,7 +784,7 @@ dr_address_invariant_p (struct data_refe
 
 /* Frees data reference DR.  */
 
-static void
+void
 free_data_ref (data_reference_p dr)
 {
   BITMAP_FREE (DR_VOPS (dr));