(expand_function_end): Don't warn about unused

        anonymous or artificial parms.

From-SVN: r9585

diff --git a/gcc/function.c b/gcc/function.c
index 83a6962..7715740 100644 (file)
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -5241,7 +5241,8 @@ expand_function_end (filename, line, end_bindings)
 
       for (decl = DECL_ARGUMENTS (current_function_decl);
           decl; decl = TREE_CHAIN (decl))
-       if (! TREE_USED (decl) && TREE_CODE (decl) == PARM_DECL)
+       if (! TREE_USED (decl) && TREE_CODE (decl) == PARM_DECL
+           && DECL_NAME (decl) && ! DECL_ARTIFICIAL (decl))
          warning_with_decl (decl, "unused parameter `%s'");
     }