irp_callgraph_state callgraph_state; /**< State of the callgraph. */
struct ir_loop *outermost_cg_loop; /**< For callgraph analysis: entry point
to looptree over callgraph. */
+ int max_callgraph_loop_depth;
+ int max_callgraph_recursion_depth;
#ifdef DEBUG_libfirm
long max_node_nr; /**< to generate unique numbers for nodes. */