--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/builtins.h	Sun Aug 21 07:07:55 2011 +0900
@@ -0,0 +1,49 @@
+/* Expand builtin functions.
+   Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
+
+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/>.  */
+
+#ifndef GCC_BUILTINS_H
+#define GCC_BUILTINS_H
+
+/* Target-dependent globals.  */
+struct target_builtins {
+  /* For each register that may be used for calling a function, this
+     gives a mode used to copy the register's value.  VOIDmode indicates
+     the register is not used for calling a function.  If the machine
+     has register windows, this gives only the outbound registers.
+     INCOMING_REGNO gives the corresponding inbound register.  */
+  enum machine_mode x_apply_args_mode[FIRST_PSEUDO_REGISTER];
+
+  /* For each register that may be used for returning values, this gives
+     a mode used to copy the register's value.  VOIDmode indicates the
+     register is not used for returning values.  If the machine has
+     register windows, this gives only the outbound registers.
+     INCOMING_REGNO gives the corresponding inbound register.  */
+  enum machine_mode x_apply_result_mode[FIRST_PSEUDO_REGISTER];
+};
+
+extern GTY(()) struct target_builtins default_target_builtins;
+#if SWITCHABLE_TARGET
+extern struct target_builtins *this_target_builtins;
+#else
+#define this_target_builtins (&default_target_builtins)
+#endif
+
+#endif