blocks in Firm. Moreover build phi list. */
irg_walk_anchors(irg, clear_links, build_phi_lists, NULL);
+ { ir_tarval* const f = get_tarval_b_false();
+ ir_tarval* const t = get_tarval_b_true();
+ set_bitinfo(get_irg_bad(irg), f, t); /* Undefined. */
+ set_bitinfo(get_irg_end_block(irg), t, f); /* Reachable. */
+ }
+
/* TODO Improve iteration order. Best is reverse postorder in data flow
* direction and respecting loop nesting for fastest convergence. */
irg_walk_blkwise_dom_top_down(irg, NULL, first_round, q);