--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/gencodes.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,97 @@
+/* Generate from machine description:
+   - some macros CODE_FOR_... giving the insn_code_number value
+   for each of the defined standard insn names.
+   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/>.  */
+
+
+#include "bconfig.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "rtl.h"
+#include "errors.h"
+#include "gensupport.h"
+
+static void
+gen_insn (rtx insn, int code)
+{
+  const char *name = XSTR (insn, 0);
+  int truth = maybe_eval_c_test (XSTR (insn, 2));
+
+  /* Don't mention instructions whose names are the null string
+     or begin with '*'.  They are in the machine description just
+     to be recognized.  */
+  if (name[0] != 0 && name[0] != '*')
+    {
+      if (truth == 0)
+	printf ("#define CODE_FOR_%s CODE_FOR_nothing\n", name);
+      else
+	printf ("  CODE_FOR_%s = %d,\n", name, code);
+    }
+}
+
+int
+main (int argc, char **argv)
+{
+  rtx desc;
+
+  progname = "gencodes";
+
+  /* We need to see all the possibilities.  Elided insns may have
+     direct references to CODE_FOR_xxx in C code.  */
+  insn_elision = 0;
+
+  if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE)
+    return (FATAL_EXIT_CODE);
+
+  puts ("\
+/* Generated automatically by the program `gencodes'\n\
+   from the machine description file `md'.  */\n\
+\n\
+#ifndef GCC_INSN_CODES_H\n\
+#define GCC_INSN_CODES_H\n\
+\n\
+enum insn_code {");
+
+  /* Read the machine description.  */
+
+  while (1)
+    {
+      int line_no;
+      int insn_code_number;
+
+      desc = read_md_rtx (&line_no, &insn_code_number);
+      if (desc == NULL)
+	break;
+
+      if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
+	gen_insn (desc, insn_code_number);
+    }
+
+  puts ("  CODE_FOR_nothing\n\
+};\n\
+\n\
+#endif /* GCC_INSN_CODES_H */");
+
+  if (ferror (stdout) || fflush (stdout) || fclose (stdout))
+    return FATAL_EXIT_CODE;
+
+  return SUCCESS_EXIT_CODE;
+}