- firm_dbg_module_t *dbg_sched = firm_dbg_register("be.sched");
- int res = 1;
- const ir_node *irn;
- int i, n;
- int *save_time_step;
- const ir_node **save_nodes;
- const ir_edge_t *edge;
- pset *scheduled_nodes = pset_new_ptr_default();
-
- firm_dbg_set_mask(dbg_sched, -1);
-
- /* Count the number of nodes in the schedule. */
- n = 0;
- sched_foreach(block, irn)
- n++;
-
- save_time_step = malloc(n * sizeof(save_time_step[0]));
- save_nodes = malloc(n * sizeof(save_nodes[0]));
-
- i = 0;
- sched_foreach(block, irn) {
- sched_info_t *info = get_irn_sched_info(irn);
- save_time_step[i] = info->time_step;
- save_nodes[i] = irn;
- info->time_step = i;
- pset_insert_ptr(scheduled_nodes, irn);
-
- i += 1;
- }
-
- /*
- * Check if each relevant operand of a node is scheduled before
- * the node itself.
- */
- sched_foreach(block, irn) {
- int i, n;
- int step = sched_get_time_step(irn);
-
- for(i = 0, n = get_irn_arity(irn); i < n; i++) {
- ir_node *op = get_irn_n(irn, i);
-
- if(to_appear_in_schedule(op)
- && !is_Phi(irn)
- && get_nodes_block(op) == block
- && sched_get_time_step(op) > step) {
-
- DBG((dbg_sched, LEVEL_DEFAULT,
- "%+F: %+F is operand of %+F but scheduled after\n", block, op, irn));
- res = 0;
- }
- }
- }
-
- /* Check, if the time steps are correct */
- for(i = 1; i < n; ++i) {
- if(save_time_step[i] - save_time_step[i - 1] <= 0) {
- DBG((dbg_sched, LEVEL_DEFAULT,
- "%+F from %+F(%d) -> %+F(%d) step shrinks from %d -> %d\n",
- block, save_nodes[i - 1], i - 1, save_nodes[i], i,
- save_time_step[i - 1], save_time_step[i]));
- res = 0;
- }
- }
-
- /* Restore the old time steps */
- i = 0;
- sched_foreach(block, irn) {
- sched_info_t *info = get_irn_sched_info(irn);
- info->time_step = save_time_step[i++];
- }
-
- /* Check for all nodes in the block if they are scheduled. */
- foreach_out_edge(block, edge) {
- ir_node *irn = get_edge_src_irn(edge);
- if(to_appear_in_schedule(irn) && !pset_find_ptr(scheduled_nodes, irn))
- DBG((dbg_sched, LEVEL_DEFAULT,
- "%+F: %+F is in block but not scheduled\n", block, irn));
- }
-
- del_pset(scheduled_nodes);
- free(save_time_step);
- free(save_nodes);
- return res;
+ anchor list;
+ ir_node **blk_list, *b, *n;
+ unsigned i;
+
+ /* schedule extended basic blocks */
+ compute_extbb(irg);
+
+ list.start = NULL;
+ list.end = NULL;
+ list.n_blks = 0;
+ irg_extblock_walk_graph(irg, NULL, create_block_list, &list);
+
+ /** create an array, so we can go forward and backward */
+ blk_list = NEW_ARR_D(ir_node *, irg->obst,list.n_blks);
+
+ for (i = 0, b = list.start; b; b = n, ++i) {
+ n = get_irn_link(b);
+ set_irn_link(b, INT_TO_PTR(i));
+
+ blk_list[i] = b;
+ }
+ return blk_list;