* basic-block.h (struct edge_def): New field "count".

	(struct basic_block_def): Likewise.
	* flow.c (entry_exit_blocks): Add count fileds.
	(split_edge): Keep count information up-to-date.
        (dump_edge_info, dump_flow_info): Dump count fields.

	* final.c (count_instrumented_edges): Rename to edge from arc.
	(end_final): Update users.
	* profile.c: Include expr.h, basic-block.h.
	(struct adj_list, ARC_TARGET, ARC_SOURCE, ARC_COUNT): Kill.
        (struct bb_info, label_to_bb, label_to_bb_size, bb_graph): Kill.
        (ignore_next_note, return_label_execution_count): Kill.
	(bbg_file_name, da_file_name): Kill.
        (edge_info, bb_info): New structures.
        (EDGE_INFO, BB_INFO, GCOV_INDEX_TO_BB, BB_TO_GCOV_INDEX): New macros.
	(count_instrumented_edges, total_num_edges): Rename to edge from arc.
	(total_num_edges_instrumented): Likewise.
	(init_arc, expand_spanning_tree): Kill.
	(fill_spanning_tree, tablejump_entry_p): Kill.
	(instrument_edges):  Rewrite from instrument_arcs to use
	commit_edge_insertions infrastructure.
	(compute_branch_probabilities): Remove arguments; rewrite for
	CFG infrastructure; use rtl_dump_file directly.
	(branch_prob, find_spanning_tree): Likewise.
	(union_groups, find_group): New.
	(init_branch_prob): Make bbg_file_name and da_file_name local.
	(end_branch_prob): Use rtl_dump_file directly.
	(init_edge_profiler): Rename to edge from arc.
	(output_arc_profiler): Kill.
	(gen_edge_profiler): New.
	(output_func_start_profiler): Turn off profiling.  Make the
	constructor static when we can.
	* rtl.h (branch_prob, end_branch_prob): Update prototypes.

	* toplev.c (DFI_flow): Remove.
	(DFI_cfg, DFI_life): New.
	(dump_file): Update accordingly.
	(compile_file): Call end_branch_prob if profile_arc_flag too.
	(rest_of_compilation): Move flow1 cfg creation to DFI_cfg.  Do edge
	profiling after the CFG is built.  Move flow1 life analysis to
	DFI_life.  Always estimate remaining probabilities.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34037 138bc75d-0d04-0410-961f-82ee72b054a4

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