* doc/invoke.texi (Wsuggest-attribute): Document.

[pf3gnuchains/gcc-fork.git] / gcc / ipa-pure-const.c

diff --git a/gcc/ipa-pure-const.c b/gcc/ipa-pure-const.c
index 766c8fc..da8d442 100644 (file)
--- a/gcc/ipa-pure-const.c
+++ b/gcc/ipa-pure-const.c
@@ -177,6 +177,16 @@ warn_function_const (tree decl, bool known_finite)
     = suggest_attribute (OPT_Wsuggest_attribute_const, decl,
                         known_finite, warned_about, "const");
 }
+
+void
+warn_function_noreturn (tree decl)
+{
+  static struct pointer_set_t *warned_about;
+  if (!lang_hooks.missing_noreturn_ok_p (decl))
+    warned_about 
+      = suggest_attribute (OPT_Wsuggest_attribute_noreturn, decl,
+                          true, warned_about, "noreturn");
+}
 /* Init the function state.  */
 
 static void
@@ -1514,11 +1524,7 @@ local_pure_const (void)
   if (!skip && !TREE_THIS_VOLATILE (current_function_decl)
       && EDGE_COUNT (EXIT_BLOCK_PTR->preds) == 0)
     {
-      if (warn_missing_noreturn
-         && !lang_hooks.missing_noreturn_ok_p (cfun->decl))
-       warning_at (DECL_SOURCE_LOCATION (cfun->decl), OPT_Wmissing_noreturn,
-                   "function might be possible candidate "
-                   "for attribute %<noreturn%>");
+      warn_function_noreturn (cfun->decl);
       if (dump_file)
         fprintf (dump_file, "Function found to be noreturn: %s\n",
                 lang_hooks.decl_printable_name (current_function_decl, 2));