[PATCH 02/10] Add stats on adhoc table to dump_line_table_statistics

[David Malcolm]

The stats on line-table memory usage emitted via -fmem-report
from input.c's dump_line_table_statistics don't include
information on the ad-hoc data table.

This patch adds lines like this:
 Ad-hoc table size:                     192k
 Ad-hoc table entries used:            4336

OK for trunk?

gcc/ChangeLog:
        * input.c (dump_line_table_statistics): Dump stats on adhoc table.

libcpp/ChangeLog:
        * include/line-map.h (struct linemap_stats): Add fields
        "adhoc_table_size" and "adhoc_table_entries_used".
        * line-map.c (linemap_get_statistics): Populate above fields.
---
 gcc/input.c               | 6 ++++++
 libcpp/include/line-map.h | 2 ++
 libcpp/line-map.c         | 3 +++
 3 files changed, 11 insertions(+)

diff --git a/gcc/input.c b/gcc/input.c
index e7302a4..ff80dd9 100644
--- a/gcc/input.c
+++ b/gcc/input.c
@@ -866,6 +866,12 @@ dump_line_table_statistics (void)
   fprintf (stderr, "Total used maps size:                %5ld%c\n",
            SCALE (total_used_map_size),
            STAT_LABEL (total_used_map_size));
+  fprintf (stderr, "Ad-hoc table size:                   %5ld%c\n",
+          SCALE (s.adhoc_table_size),
+          STAT_LABEL (s.adhoc_table_size));
+  fprintf (stderr, "Ad-hoc table entries used:           %5ld\n",
+          s.adhoc_table_entries_used);
+
   fprintf (stderr, "\n");
 }
 
diff --git a/libcpp/include/line-map.h b/libcpp/include/line-map.h
index 30bad87..09378f9 100644
--- a/libcpp/include/line-map.h
+++ b/libcpp/include/line-map.h
@@ -1143,6 +1143,8 @@ struct linemap_stats
   long macro_maps_used_size;
   long macro_maps_locations_size;
   long duplicated_macro_maps_locations_size;
+  long adhoc_table_size;
+  long adhoc_table_entries_used;
 };
 
 /* Return the highest location emitted for a given file for which
diff --git a/libcpp/line-map.c b/libcpp/line-map.c
index 3d82e9b..84403de 100644
--- a/libcpp/line-map.c
+++ b/libcpp/line-map.c
@@ -1712,6 +1712,9 @@ linemap_get_statistics (struct line_maps *set,
   s->macro_maps_used_size = macro_maps_used_size;
   s->duplicated_macro_maps_locations_size =
     duplicated_macro_maps_locations_size;
+  s->adhoc_table_size = (set->location_adhoc_data_map.allocated
+                        * sizeof (struct location_adhoc_data));
+  s->adhoc_table_entries_used = set->location_adhoc_data_map.curr_loc;
 }
 
 
-- 
1.8.5.3