Subversion Repositories openrisc

/* Common hooks for pdp11.
   Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2001, 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 pdp11_option_optimization_table[] =
  {
    { OPT_LEVELS_3_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
    { OPT_LEVELS_NONE, 0, NULL, 0 }
  };
 
/* Implement TARGET_HANDLE_OPTION.  */
 
static bool
pdp11_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_m10:
      opts->x_target_flags &= ~(MASK_40 | MASK_45);
      return true;
 
    default:
      return true;
    }
}
 
/* Implement TARGET_OPTION_INIT_STRUCT.  */
 
static void
pdp11_option_init_struct (struct gcc_options *opts)
{
  opts->x_flag_finite_math_only = 0;
  opts->x_flag_trapping_math = 0;
  opts->x_flag_signaling_nans = 0;
}
 
#undef TARGET_DEFAULT_TARGET_FLAGS
#define TARGET_DEFAULT_TARGET_FLAGS \
  (MASK_FPU | MASK_45 | TARGET_UNIX_ASM_DEFAULT)
#undef TARGET_HANDLE_OPTION
#define TARGET_HANDLE_OPTION pdp11_handle_option
#undef TARGET_OPTION_OPTIMIZATION_TABLE
#define TARGET_OPTION_OPTIMIZATION_TABLE pdp11_option_optimization_table
#undef TARGET_OPTION_INIT_STRUCT
#define TARGET_OPTION_INIT_STRUCT pdp11_option_init_struct
 
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;