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/* 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, 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/>.  */

/* 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 "errors.h"

#include "read-md.h"

/* Called via traverse_md_constants; emit a #define for

   the current constant definition.  */

static int

print_md_constant (void **slot, void *info ATTRIBUTE_UNUSED)

{

  struct md_constant *def = (struct md_constant *) *slot;

  if (!def->parent_enum)

    printf ("#define %s %s\n", def->name, def->value);

  return 1;

}

/* Called via traverse_enums.  Emit an enum definition for

   enum_type *SLOT.  */

static int

print_enum_type (void **slot, void *info ATTRIBUTE_UNUSED)

{

  struct enum_type *def;

  struct enum_value *value;

  char *value_name;

  def = (struct enum_type *) *slot;

  printf ("\nenum %s {", def->name);

  for (value = def->values; value; value = value->next)

    {

      printf ("\n  %s = %s", value->def->name, value->def->value);

      if (value->next)

        putc (',', stdout);

    }

  printf ("\n};\n");

  /* Define NUM_<enum>_VALUES to be the largest enum value + 1.  */

  value_name = ACONCAT (("num_", def->name, "_values", NULL));

  upcase_string (value_name);

  printf ("#define %s %d\n", value_name, def->num_values);

  /* Declare the array that is generated by genenum.  */

  printf ("extern const char *const %s_strings[];\n", def->name);

  return 1;

}

int

main (int argc, char **argv)

{

  progname = "genconstants";

  if (!read_md_files (argc, argv, NULL, NULL))

    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, 0);

  traverse_enum_types (print_enum_type, 0);

  puts ("\n#endif /* GCC_INSN_CONSTANTS_H */");

  if (ferror (stdout) || fflush (stdout) || fclose (stdout))

    return FATAL_EXIT_CODE;

  return SUCCESS_EXIT_CODE;

}