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/* Common hooks for CRIS.
   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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"
 
/* Implement TARGET_OPTION_OPTIMIZATION_TABLE.  */
 
static const struct default_options cris_option_optimization_table[] =
  {
    { OPT_LEVELS_2_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
    { OPT_LEVELS_NONE, 0, NULL, 0 }
  };
 
/* TARGET_HANDLE_OPTION worker.  We just store the values into local
   variables here.  Checks for correct semantics are in
   cris_option_override.  */
 
static bool
cris_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;
 
  switch (code)
    {
    case OPT_metrax100:
      opts->x_target_flags
	|= (MASK_SVINTO
	    + MASK_ETRAX4_ADD
	    + MASK_ALIGN_BY_32);
      break;
 
    case OPT_mno_etrax100:
      opts->x_target_flags
	&= ~(MASK_SVINTO
	     + MASK_ETRAX4_ADD
	     + MASK_ALIGN_BY_32);
      break;
 
    case OPT_m32_bit:
    case OPT_m32bit:
      opts->x_target_flags
	|= (MASK_STACK_ALIGN
	    + MASK_CONST_ALIGN
	    + MASK_DATA_ALIGN
	    + MASK_ALIGN_BY_32);
      break;
 
    case OPT_m16_bit:
    case OPT_m16bit:
      opts->x_target_flags
	|= (MASK_STACK_ALIGN
	    + MASK_CONST_ALIGN
	    + MASK_DATA_ALIGN);
      break;
 
    case OPT_m8_bit:
    case OPT_m8bit:
      opts->x_target_flags
	&= ~(MASK_STACK_ALIGN
	     + MASK_CONST_ALIGN
	     + MASK_DATA_ALIGN);
      break;
 
    default:
      break;
    }
 
  return true;
}
 
#undef TARGET_DEFAULT_TARGET_FLAGS
#define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | CRIS_SUBTARGET_DEFAULT)
#undef TARGET_HANDLE_OPTION
#define TARGET_HANDLE_OPTION cris_handle_option
#undef TARGET_OPTION_OPTIMIZATION_TABLE
#define TARGET_OPTION_OPTIMIZATION_TABLE cris_option_optimization_table
 
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;