Subversion Repositories openrisc

/* TI C6X common hooks.
   Copyright (C) 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 "diagnostic-core.h"
#include "tm.h"
#include "tm_p.h"
#include "common/common-target.h"
#include "common/common-target-def.h"
#include "opts.h"
#include "flags.h"
 
/* Implement overriding of the optimization options.  */
static const struct default_options c6x_option_optimization_table[] =
  {
    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
    { OPT_LEVELS_1_PLUS, OPT_frename_registers, NULL, 1 },
    { OPT_LEVELS_2_PLUS, OPT_fmodulo_sched, NULL, 1 },
    { OPT_LEVELS_ALL, OPT_freciprocal_math, NULL, 1 },
    { OPT_LEVELS_NONE, 0, NULL, 0 }
  };
 
/* Implement TARGET_EXCEPT_UNWIND_INFO.  */
 
static enum unwind_info_type
c6x_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
{
  /* Honor the --enable-sjlj-exceptions configure switch.  */
#ifdef CONFIG_SJLJ_EXCEPTIONS
  if (CONFIG_SJLJ_EXCEPTIONS)
    return UI_SJLJ;
#endif
 
  return UI_TARGET;
}
 
#undef TARGET_DEFAULT_TARGET_FLAGS
#define TARGET_DEFAULT_TARGET_FLAGS TARGET_DEFAULT
 
#undef TARGET_OPTION_OPTIMIZATION_TABLE
#define TARGET_OPTION_OPTIMIZATION_TABLE c6x_option_optimization_table
 
#undef TARGET_EXCEPT_UNWIND_INFO
#define TARGET_EXCEPT_UNWIND_INFO  c6x_except_unwind_info
 
struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;