+
+static void localize_const_walker(ir_node *irn, void *data)
+{
+ if(!is_Block(irn)) {
+ int i, n;
+
+ for(i = 0, n = get_irn_arity(irn); i < n; ++i) {
+ ir_node *op = get_irn_n(irn, i);
+ if(get_irn_opcode(op) == iro_Const) {
+ ir_node *tgt_block, *cnst;
+
+ /* Special treatment for phi nodes, because phi-usage is different */
+ tgt_block = get_nodes_block(irn);
+ if(is_Phi(irn))
+ tgt_block = get_nodes_block(get_irn_n(tgt_block, i));
+
+ /*
+ * We have to create the const node by ourselves, since the
+ * firmcons implementation always places it in the start block.
+ */
+ cnst = new_ir_node(NULL, get_irn_irg(irn),
+ tgt_block, op_Const, get_irn_mode(op), 0, NULL);
+ cnst->attr.con.tv = get_Const_tarval(op);
+ set_irn_n(irn, i, cnst);
+ }
+ }
+ }
+}
+
+void localize_consts(ir_graph *irg)
+{
+ irg_walk_graph(irg, localize_const_walker, NULL, NULL);
+ dead_node_elimination(irg);
+}
+
+static int sched_edge_hook(FILE *F, ir_node *irn)
+{
+ if(sched_is_scheduled(irn) && sched_has_prev(irn)) {
+ ir_node *prev = sched_prev(irn);
+ fprintf(F, "edge:{sourcename:\"");
+ PRINT_NODEID(irn);
+ fprintf(F, "\" targetname:\"");
+ PRINT_NODEID(prev);
+ fprintf(F, "\" color:magenta}\n");
+ }
+ return 1;
+}
+
+void dump_ir_block_graph_sched(ir_graph *irg, const char *suffix) {
+ DUMP_NODE_EDGE_FUNC old = get_dump_node_edge_hook();
+
+ dump_consts_local(0);
+ set_dump_node_edge_hook(sched_edge_hook);
+ dump_ir_block_graph(irg, suffix);
+ set_dump_node_edge_hook(old);
+}
+
+static void clear_link(ir_node *irn, void *data)
+{
+ set_irn_link(irn, NULL);
+}
+
+static void collect_phis(ir_node *irn, void *data)
+{
+ if(is_Phi(irn)) {
+ ir_node *bl = get_nodes_block(irn);
+ set_irn_link(irn, get_irn_link(bl));
+ set_irn_link(bl, irn);
+ }
+}
+
+void be_clear_links(ir_graph *irg)
+{
+ irg_walk_graph(irg, clear_link, NULL, NULL);
+}
+
+void be_collect_phis(ir_graph *irg)
+{
+ irg_walk_graph(irg, collect_phis, NULL, NULL);
+}