xref: /dflybsd-src/contrib/gcc-4.7/gcc/genattr-common.c (revision 04febcfb30580676d3e95f58a16c5137ee478b32)

/* Generate attribute information shared between driver and core
   compilers (insn-attr-common.h) from machine description.  Split out
   of genattr.c.
   Copyright (C) 1991, 1994, 1996, 1998, 1999, 2000, 2003, 2004, 2007, 2008,
   2010, 2011  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 "read-md.h"
#include "gensupport.h"

static void
write_upcase (const char *str)
{
  for (; *str; str++)
    putchar (TOUPPER(*str));
}

static void
gen_attr (rtx attr)
{
  const char *p, *tag;

  p = XSTR (attr, 1);
  if (*p != '\0')
    {
      printf ("enum attr_%s {", XSTR (attr, 0));

      while ((tag = scan_comma_elt (&p)) != 0)
	{
	  write_upcase (XSTR (attr, 0));
	  putchar ('_');
	  while (tag != p)
	    putchar (TOUPPER (*tag++));
	  if (*p == ',')
	    fputs (", ", stdout);
	}
      fputs ("};\n", stdout);
    }
}

int
main (int argc, char **argv)
{
  rtx desc;
  bool have_delay = false;
  bool have_sched = false;

  progname = "genattr-common";

  if (!init_rtx_reader_args (argc, argv))
    return (FATAL_EXIT_CODE);

  puts ("/* Generated automatically by the program `genattr-common'");
  puts ("   from the machine description file `md'.  */\n");
  puts ("#ifndef GCC_INSN_ATTR_COMMON_H");
  puts ("#define GCC_INSN_ATTR_COMMON_H\n");

  /* Read the machine description.  */

  while (1)
    {
      int line_no, insn_code_number;

      desc = read_md_rtx (&line_no, &insn_code_number);
      if (desc == NULL)
	break;

      if (GET_CODE (desc) == DEFINE_ATTR)
	gen_attr (desc);

      if (GET_CODE (desc) == DEFINE_DELAY)
        {
	  if (!have_delay)
	    {
	      printf ("#define DELAY_SLOTS\n");
	      have_delay = true;
	    }
	}
      else if (GET_CODE (desc) == DEFINE_INSN_RESERVATION)
	{
	  if (!have_sched)
	    {
	      printf ("#define INSN_SCHEDULING\n");
	      have_sched = true;
	    }
	}
    }
  puts ("\n#endif /* GCC_INSN_ATTR_COMMON_H */");

  if (ferror (stdout) || fflush (stdout) || fclose (stdout))
    return FATAL_EXIT_CODE;

  return SUCCESS_EXIT_CODE;
}