ir_node *bl = is_Block(pos) ? pos : get_nodes_block(pos);
ir_graph *irg = get_irn_irg(bl);
pset *live = pset_new_ptr_default();
ir_node *bl = is_Block(pos) ? pos : get_nodes_block(pos);
ir_graph *irg = get_irn_irg(bl);
pset *live = pset_new_ptr_default();