-
-/* In tree-vn.c */
-tree make_value_handle (tree);
-void set_value_handle (tree, tree);
-bool expressions_equal_p (tree, tree);
-void sort_vuses (VEC (tree, gc) *);
-void sort_vuses_heap (VEC (tree, heap) *);
-tree vn_lookup_or_add (tree);
-tree vn_lookup_or_add_with_stmt (tree, gimple);
-tree vn_lookup_or_add_with_vuses (tree, VEC (tree, gc) *);
-void vn_add (tree, tree);
-void vn_add_with_vuses (tree, tree, VEC (tree, gc) *);
-tree vn_lookup_with_stmt (tree, gimple);
-tree vn_lookup (tree);
-tree vn_lookup_with_vuses (tree, VEC (tree, gc) *);
-