[PATCH 3/7] GCOV: introduce vector for function_info::counts.

[marxin]

gcc/ChangeLog:

2017-11-09  Martin Liska  <mli...@suse.cz>

        * gcov.c (function_info::function_info): Remove num_counts
        and add vector<gcov_type>.
        (function_info::~function_info): Use the vector.
        (process_file): Likewise.
        (read_graph_file): Likewise.
        (read_count_file): Likewise.
        (solve_flow_graph): Likewise.
---
 gcc/gcov.c | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/gcc/gcov.c b/gcc/gcov.c
index 3dc159726c7..02a01b51763 100644
--- a/gcc/gcov.c
+++ b/gcc/gcov.c
@@ -257,8 +257,7 @@ typedef struct function_info
   unsigned blocks_executed;
 
   /* Raw arc coverage counts.  */
-  gcov_type *counts;
-  unsigned num_counts;
+  vector<gcov_type> counts;
 
   /* First line number.  */
   unsigned start_line;
@@ -551,8 +550,8 @@ extern int main (int, char **);
 function_info::function_info (): name (NULL), demangled_name (NULL),
   ident (0), lineno_checksum (0), cfg_checksum (0), has_catch (0),
   artificial (0), is_group (0),
-  blocks (), blocks_executed (0), counts (NULL), num_counts (0),
-  start_line (0), start_column (0), end_line (0), src (0), lines (), next 
(NULL)
+  blocks (), blocks_executed (0), counts (),
+  start_line (0), start_column (), end_line (0), src (0), lines (), next (NULL)
 {
 }
 
@@ -568,7 +567,6 @@ function_info::~function_info ()
          free (arc);
        }
     }
-  free (counts);
   if (flag_demangled_names && demangled_name != name)
     free (demangled_name);
   free (name);
@@ -1140,7 +1138,7 @@ process_file (const char *file_name)
       function_t *fn = *it;
       unsigned src = fn->src;
 
-      if (fn->counts || no_data_file)
+      if (!fn->counts.empty () || no_data_file)
        {
          source_info *s = &sources[src];
          s->functions.push_back (fn);
@@ -1604,7 +1602,7 @@ read_graph_file (void)
                }
 
              if (!arc->on_tree)
-               fn->num_counts++;
+               fn->counts.push_back (0);
            }
 
          if (mark_catches)
@@ -1755,13 +1753,10 @@ read_count_file (void)
        }
       else if (tag == GCOV_TAG_FOR_COUNTER (GCOV_COUNTER_ARCS) && fn)
        {
-         if (length != GCOV_TAG_COUNTER_LENGTH (fn->num_counts))
+         if (length != GCOV_TAG_COUNTER_LENGTH (fn->counts.size ()))
            goto mismatch;
 
-         if (!fn->counts)
-           fn->counts = XCNEWVEC (gcov_type, fn->num_counts);
-
-         for (ix = 0; ix != fn->num_counts; ix++)
+         for (ix = 0; ix != fn->counts.size (); ix++)
            fn->counts[ix] += gcov_read_counter ();
        }
       gcov_sync (base, length);
@@ -1788,7 +1783,7 @@ solve_flow_graph (function_t *fn)
 {
   unsigned ix;
   arc_t *arc;
-  gcov_type *count_ptr = fn->counts;
+  gcov_type *count_ptr = &fn->counts.front ();
   block_t *blk;
   block_t *valid_blocks = NULL;    /* valid, but unpropagated blocks.  */
   block_t *invalid_blocks = NULL;  /* invalid, but inferable blocks.  */
-- 
2.14.3