+
+/*
+ * Copies a node to a new irg. The Ins of the new node point to
+ * the predecessors on the old irg. n->link points to the new node.
+ *
+ * Does NOT copy standard nodes like Start, End etc that are fixed
+ * in an irg. Instead, the corresponding nodes of the new irg are returned.
+ * Note further, that the new nodes have no block.
+ */
+void
+copy_irn_to_irg(ir_node *n, ir_graph *irg)
+{
+ ir_op *op = get_irn_op(n);
+ ir_graph *old_irg;
+ ir_node *nn = NULL;
+
+ /* do not copy standard nodes */
+ if (op == op_Bad)
+ nn = get_irg_bad(irg);
+ else if (op == op_NoMem)
+ n = get_irg_no_mem(irg);
+ else if (op == op_Block) {
+ old_irg = get_irn_irg(n);
+
+ if (n == get_irg_start_block(old_irg))
+ nn = get_irg_start_block(irg);
+ else if (n == get_irg_end_block(old_irg))
+ nn = get_irg_end_block(irg);
+ }
+ else if (op == op_Start)
+ nn = get_irg_start(irg);
+ else if (op == op_End)
+ nn = get_irg_end(irg);
+ else if (op == op_Proj) {
+ old_irg = get_irn_irg(n);
+
+ if (n == get_irg_frame(old_irg))
+ nn = get_irg_frame(irg);
+ else if (n == get_irg_globals(old_irg))
+ nn = get_irg_globals(irg);
+ else if (n == get_irg_initial_mem(old_irg))
+ nn = get_irg_initial_mem(irg);
+ else if (n == get_irg_args(old_irg))
+ nn = get_irg_args(irg);
+ }
+
+ if (nn) {
+ set_irn_link(n, nn);
+ return;
+ }
+
+ nn = new_ir_node(get_irn_dbg_info(n),
+ irg,
+ NULL, /* no block yet, will be set later */
+ op,
+ get_irn_mode(n),
+ get_irn_arity(n),
+ get_irn_in(n) + 1);
+
+
+ /* Copy the attributes. These might point to additional data. If this
+ was allocated on the old obstack the pointers now are dangling. This
+ frees e.g. the memory of the graph_arr allocated in new_immBlock. */
+ copy_node_attr(n, nn);
+ new_backedge_info(nn);
+ set_irn_link(n, nn);
+
+ /* fix the irg for blocks */
+ if (is_Block(nn))
+ nn->attr.block.irg = irg;
+}
+
+/*
+ * Creates an exact copy of a node.
+ * The copy resides in the same graph in the same block.
+ */
+ir_node *exact_copy(const ir_node *n) {
+ ir_graph *irg = get_irn_irg(n);
+ ir_node *res, *block = NULL;
+
+ if (is_no_Block(n))
+ block = get_nodes_block(n);
+
+ res = new_ir_node(get_irn_dbg_info(n),
+ irg,
+ block,
+ get_irn_op(n),
+ get_irn_mode(n),
+ get_irn_arity(n),
+ get_irn_in(n) + 1);
+
+
+ /* Copy the attributes. These might point to additional data. If this
+ was allocated on the old obstack the pointers now are dangling. This
+ frees e.g. the memory of the graph_arr allocated in new_immBlock. */
+ copy_node_attr(n, res);
+ new_backedge_info(res);
+ return res;
+}
+
+void firm_pset_dump(pset *set)
+{
+ void *obj;
+
+ foreach_pset(set, obj) {
+ ir_fprintf(stderr, "%+F\n", obj);
+ }
+}