Move combine over to statistics_counter_event.

Since we have statistics_counter_event now, combine should use that
instead of it is own custom printing of statistics.
The only thing that is not done any more after this patch is printing
out the total stats for the whole TU.

Note you need to use -fdump-rtl-combine-stats to get the stats in the combine
dump unlike before where the stats was dumped directly into the file.

OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.

gcc/ChangeLog:

	* combine.cc (dump_combine_stats): Remove.
	(dump_combine_total_stats): Remove.
	(total_attempts, total_merges, total_extras,
	total_successes): Remove.
	(combine_instructions): Don't increment total stats
	instead use statistics_counter_event.
	* dumpfile.cc (print_combine_total_stats): Remove.
	* dumpfile.h (print_combine_total_stats): Remove.
	(dump_combine_total_stats): Remove.
	* passes.cc (finish_optimization_passes):
	Don't call print_combine_total_stats.
	* rtl.h (dump_combine_total_stats): Remove.
	(dump_combine_stats): Remove.

1 files changed, 0 insertions, 2 deletions

diff --git a/gcc/rtl.h b/gcc/rtl.h
index 098dc4c..03b7d05 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -4216,8 +4216,6 @@ extern bool validate_subreg (machine_mode, machine_mode,
 /* In combine.cc  */
 extern unsigned int extended_count (const_rtx, machine_mode, int);
 extern rtx remove_death (unsigned int, rtx_insn *);
-extern void dump_combine_stats (FILE *);
-extern void dump_combine_total_stats (FILE *);
 extern rtx make_compound_operation (rtx, enum rtx_code);
 
 /* In sched-rgn.cc.  */