- node_map = xmalloc((get_irg_last_idx(co->irg) + 1) * sizeof(node_map[0]));
- inv_node_map = xmalloc((get_irg_last_idx(co->irg) + 1) * sizeof(inv_node_map[0]));
+ node_map = XMALLOC(int, get_irg_last_idx(co->irg) + 1);
+ inv_node_map = XMALLOC(int, get_irg_last_idx(co->irg) + 1);