--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/genconstants.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,73 @@
+/* Generate from machine description:
+   a series of #define statements, one for each constant named in
+   a (define_constants ...) pattern.
+
+   Copyright (C) 1987, 1991, 1995, 1998, 1999, 2000, 2001, 2003, 2004,
+   2007  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/>.  */
+
+/* This program does not use gensupport.c because it does not need to
+   look at insn patterns, only (define_constants), and we want to
+   minimize dependencies.  */
+
+#include "bconfig.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "rtl.h"
+#include "errors.h"
+#include "gensupport.h"
+
+/* Called via traverse_md_constants; emit a #define for
+   the current constant definition.  */
+
+static int
+print_md_constant (void **slot, void *info)
+{
+  struct md_constant *def = (struct md_constant *) *slot;
+  FILE *file = (FILE *) info;
+
+  fprintf (file, "#define %s %s\n", def->name, def->value);
+  return 1;
+}
+
+int
+main (int argc, char **argv)
+{
+  progname = "genconstants";
+
+  if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
+    return (FATAL_EXIT_CODE);
+
+  /* Initializing the MD reader has the side effect of loading up
+     the constants table that we wish to scan.  */
+
+  puts ("/* Generated automatically by the program `genconstants'");
+  puts ("   from the machine description file `md'.  */\n");
+  puts ("#ifndef GCC_INSN_CONSTANTS_H");
+  puts ("#define GCC_INSN_CONSTANTS_H\n");
+
+  traverse_md_constants (print_md_constant, stdout);
+
+  puts ("\n#endif /* GCC_INSN_CONSTANTS_H */");
+
+  if (ferror (stdout) || fflush (stdout) || fclose (stdout))
+    return FATAL_EXIT_CODE;
+
+  return SUCCESS_EXIT_CODE;
+}