* graph.c: Include sbitmap.h and cfgloop.h.
	(draw_cfg_nodes_no_loops): New function to dump basic blocks in
	topological order if the function does not have a loop tree.
	Handle unreachable blocks also.
	(draw_cfg_nodes_for_loop): New function to dump basic blocks in
	one loop tree node as a named cluster of nodes.
	(draw_cfg_nodes): New function to draw all CFG nodes.
	(draw_cfg_edges): New function to draw all CFG edges.
	(print_graph_cfg): Simplify using the new functions.
	* Makefile.in (graph.o): Fix dependencies.

From-SVN: r194446