vpr/SRC/route/rr_graph_indexed_data.h

void alloc_and_load_rr_indexed_data(t_segment_inf * segment_inf,
		int num_segment, t_ivec *** L_rr_node_indices, int nodes_per_chan,
		int wire_to_ipin_switch, enum e_base_cost_type base_cost_type);