+int add_irn_n(ir_node *node, ir_node *in)
+{
+ int pos;
+ ir_graph *irg = get_irn_irg(node);
+
+ assert(node->op->opar == oparity_dynamic);
+ pos = ARR_LEN(node->in) - 1;
+ ARR_APP1(ir_node *, node->in, in);
+ edges_notify_edge(node, pos, node->in[pos + 1], NULL, irg);
+
+ /* Call the hook */
+ hook_set_irn_n(node, pos, node->in[pos + 1], NULL);
+
+ return pos;
+}
+
+int
+(get_irn_deps)(const ir_node *node)
+{
+ return _get_irn_deps(node);
+}
+
+ir_node *
+(get_irn_dep)(const ir_node *node, int pos)
+{
+ return _get_irn_dep(node, pos);
+}
+
+void
+(set_irn_dep)(ir_node *node, int pos, ir_node *dep)
+{
+ _set_irn_dep(node, pos, dep);
+}
+
+int add_irn_dep(ir_node *node, ir_node *dep)
+{
+ int res = 0;
+
+ if (node->deps == NULL) {
+ node->deps = NEW_ARR_F(ir_node *, 1);
+ node->deps[0] = dep;
+ } else {
+ int i, n;
+ int first_zero = -1;
+
+ for(i = 0, n = ARR_LEN(node->deps); i < n; ++i) {
+ if(node->deps[i] == NULL)
+ first_zero = i;
+
+ if(node->deps[i] == dep)
+ return i;
+ }
+
+ if (first_zero >= 0) {
+ node->deps[first_zero] = dep;
+ res = first_zero;
+ } else {
+ ARR_APP1(ir_node *, node->deps, dep);
+ res = n;
+ }
+ }
+
+ edges_notify_edge_kind(node, res, dep, NULL, EDGE_KIND_DEP, get_irn_irg(node));
+
+ return res;
+}
+
+void add_irn_deps(ir_node *tgt, ir_node *src)
+{
+ int i, n;
+
+ for(i = 0, n = get_irn_deps(src); i < n; ++i)
+ add_irn_dep(tgt, get_irn_dep(src, i));
+}
+
+