1 files changed, 1 insertions, 3 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 096fec6..3b9ca5a 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -11526,9 +11526,7 @@ fold_builtin_next_arg (tree exp, bool va_start_p)
   int nargs = call_expr_nargs (exp);
   tree arg;
 
-  if (TYPE_ARG_TYPES (fntype) == 0
-      || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (fntype)))
-	  == void_type_node))
+  if (!stdarg_p (fntype))
     {
       error ("%<va_start%> used in function with fixed args");
       return true;