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

2018-08-02  Martin Liska  <mliska@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.

From-SVN: r263248

gcc/ChangeLog

+2018-08-02  Martin Liska  <mliska@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.
+
 2018-08-02  Thomas Preud'homme  <thomas.preudhomme@linaro.org>
 
 	PR target/85434

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);