[PATCH] Fix gcov misleading error (PR gcov-profile/86817).

[Martin Liška]

Hi.

As seen in the PR, we must first read all functions into global array functions
and then processing of these can happen. Currently we process functions
multiple times.

I'm planning to install that after it survives regression tests.

Martin

gcc/ChangeLog:

2018-08-02  Martin Liska  <mli...@suse.cz>

        PR gcov-profile/86817
        * gcov.c (process_all_functions): New function.
        (main): Call it.
        (process_file): Move functions processing to
        process_all_functions.
---
 gcc/gcov.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)



diff --git a/gcc/gcov.c b/gcc/gcov.c
index 78a3e0e19e9..43dfc9a4b2c 100644
--- a/gcc/gcov.c
+++ b/gcc/gcov.c
@@ -543,6 +543,7 @@ static int process_args (int, char **);
 static void print_usage (int) ATTRIBUTE_NORETURN;
 static void print_version (void) ATTRIBUTE_NORETURN;
 static void process_file (const char *);
+static void process_all_functions (void);
 static void generate_results (const char *);
 static void create_file_names (const char *);
 static char *canonicalize_name (const char *);
@@ -798,6 +799,7 @@ main (int argc, char **argv)
 
       if (flag_intermediate_format || argno == argc - 1)
 	{
+	  process_all_functions ();
 	  generate_results (argv[argno]);
 	  release_structures ();
 	}
@@ -1145,11 +1147,14 @@ process_file (const char *file_name)
 {
   create_file_names (file_name);
   read_graph_file ();
-  if (functions.empty ())
-    return;
-
   read_count_file ();
+}
 
+/* Process all functions in all files.  */
+
+static void
+process_all_functions (void)
+{
   hash_map<function_start_pair_hash, function_info *> fn_map;
 
   /* Identify group functions.  */
@@ -1226,7 +1231,6 @@ process_file (const char *file_name)
 	  if (fn->is_group)
 	    fn->lines.resize (fn->end_line - fn->start_line + 1);
 
-
 	  solve_flow_graph (fn);
 	  if (fn->has_catch)
 	    find_exception_blocks (fn);