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/* Common hooks for Renesas M32R.
   Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   2005, 2007, 2008, 2009, 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 "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "common/common-target.h"
#include "common/common-target-def.h"
#include "opts.h"
#include "flags.h"
 
static const struct default_options m32r_option_optimization_table[] =
  {
    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
    { OPT_LEVELS_1_PLUS, OPT_fregmove, NULL, 1 },
    { OPT_LEVELS_NONE, 0, NULL, 0 }
  };
 
/* Implement TARGET_HANDLE_OPTION.  */
 
static bool
m32r_handle_option (struct gcc_options *opts,
		    struct gcc_options *opts_set ATTRIBUTE_UNUSED,
		    const struct cl_decoded_option *decoded,
		    location_t loc ATTRIBUTE_UNUSED)
{
  size_t code = decoded->opt_index;
  int value = decoded->value;
 
  switch (code)
    {
    case OPT_m32r:
      opts->x_target_flags &= ~(MASK_M32R2 | MASK_M32RX);
      return true;
 
    case OPT_mno_flush_func:
      opts->x_m32r_cache_flush_func = NULL;
      return true;
 
    case OPT_mflush_trap_:
      return value <= 15;
 
    default:
      return true;
    }
}
 
#undef  TARGET_DEFAULT_TARGET_FLAGS
#define TARGET_DEFAULT_TARGET_FLAGS TARGET_CPU_DEFAULT
#undef  TARGET_HANDLE_OPTION
#define TARGET_HANDLE_OPTION m32r_handle_option
#undef  TARGET_OPTION_OPTIMIZATION_TABLE
#define TARGET_OPTION_OPTIMIZATION_TABLE m32r_option_optimization_table
 
#undef  TARGET_EXCEPT_UNWIND_INFO
#define TARGET_EXCEPT_UNWIND_INFO		sjlj_except_unwind_info
 
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;