+
+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);
+}
+
+/**
+ * Dumps a graph and numbers all dumps.
+ * @param irg The graph
+ * @param suffix A suffix to its file name.
+ * @param dumper The dump function
+ */
+void be_dump(ir_graph *irg, const char *suffix, void (*dumper)(ir_graph *, const char *)) {
+ static ir_graph *last_irg = NULL;
+ static int nr = 0;
+ char buf[128];
+
+ if (irg != last_irg) {
+ last_irg = irg;
+ nr = 0;
+ }
+
+ snprintf(buf, sizeof(buf), "-%02d%s", nr++, suffix);
+ dumper(irg, buf);
+}
+
+
+
+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);
+}
+
+
+ir_node *dom_up_search(pset *accept, ir_node *start_point_exclusive) {
+ ir_node *irn, *idom;
+
+ /* search the current block */
+ for (irn=sched_prev(start_point_exclusive); irn; irn=sched_prev(irn))
+ if (pset_find_ptr(accept, irn))
+ return irn;
+
+ idom = get_Block_idom(get_nodes_block(start_point_exclusive));
+
+ if (idom)
+ return dom_up_search(accept, idom); /* continue search in idom-block */
+ else
+ return NULL; /* this was the start block and we did not find an acceptable irn */
+}