--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/c-family/c-dump.c	Sun Aug 21 07:07:55 2011 +0900
@@ -0,0 +1,61 @@
+/* Tree-dumping functionality for C-family languages.
+   Copyright (C) 2002, 2004, 2005, 2007, 2010 Free Software Foundation, Inc.
+   Written by Mark Mitchell <mark@codesourcery.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "tree.h"
+#include "tree-dump.h"
+#include "c-common.h"
+
+/* Dump information common to statements from STMT.  */
+
+void
+dump_stmt (dump_info_p di, const_tree t)
+{
+  if (EXPR_HAS_LOCATION (t))
+    dump_int (di, "line", EXPR_LINENO (t));
+}
+
+/* Dump any C-specific tree codes and attributes of common codes.  */
+
+bool
+c_dump_tree (void *dump_info, tree t)
+{
+  enum tree_code code;
+  dump_info_p di = (dump_info_p) dump_info;
+
+  /* Figure out what kind of node this is.  */
+  code = TREE_CODE (t);
+
+  switch (code)
+    {
+    case FIELD_DECL:
+      if (DECL_C_BIT_FIELD (t))
+	dump_string (di, "bitfield");
+      break;
+
+    default:
+      break;
+    }
+
+  return false;
+}