+static ir_node *make_bad_block(ir_graph *irg)
+{
+ ir_node *bad = new_r_Bad(irg, mode_BB);
+ bitinfo *bb = get_bitinfo(bad);
+ if (bb == NULL) {
+ ir_tarval* const f = get_tarval_b_false();
+ ir_tarval* const t = get_tarval_b_true();
+ set_bitinfo(bad, f, t); /* Undefined. */
+ }
+ return bad;
+}
+