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/* Definitions for code generation pass of GNU compiler.

   Copyright (C) 2001, 2004, 2007, 2008, 2010 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/>.  */

#ifndef GCC_LIBFUNCS_H

#define GCC_LIBFUNCS_H

#include "hashtab.h"

/* Enumeration of indexes into libfunc_table.  */

enum libfunc_index

{

  LTI_abort,

  LTI_memcpy,

  LTI_memmove,

  LTI_memcmp,

  LTI_memset,

  LTI_setbits,

  LTI_setjmp,

  LTI_longjmp,

  LTI_unwind_sjlj_register,

  LTI_unwind_sjlj_unregister,

  LTI_profile_function_entry,

  LTI_profile_function_exit,

  LTI_synchronize,

  LTI_gcov_flush,

  LTI_MAX

};

/* Information about an optab-related libfunc.  We use the same hashtable

   for normal optabs and conversion optabs.  In the first case mode2

   is unused.  */

struct GTY(()) libfunc_entry {

  size_t optab;

  enum machine_mode mode1, mode2;

  rtx libfunc;

};

/* Target-dependent globals.  */

struct GTY(()) target_libfuncs {

  /* SYMBOL_REF rtx's for the library functions that are called

     implicitly and not via optabs.  */

  rtx x_libfunc_table[LTI_MAX];

  /* Hash table used to convert declarations into nodes.  */

  htab_t GTY((param_is (struct libfunc_entry))) x_libfunc_hash;

};

extern GTY(()) struct target_libfuncs default_target_libfuncs;

#if SWITCHABLE_TARGET

extern struct target_libfuncs *this_target_libfuncs;

#else

#define this_target_libfuncs (&default_target_libfuncs)

#endif

#define libfunc_table \

  (this_target_libfuncs->x_libfunc_table)

/* Accessor macros for libfunc_table.  */

#define abort_libfunc   (libfunc_table[LTI_abort])

#define memcpy_libfunc  (libfunc_table[LTI_memcpy])

#define memmove_libfunc (libfunc_table[LTI_memmove])

#define memcmp_libfunc  (libfunc_table[LTI_memcmp])

#define memset_libfunc  (libfunc_table[LTI_memset])

#define setbits_libfunc (libfunc_table[LTI_setbits])

#define setjmp_libfunc  (libfunc_table[LTI_setjmp])

#define longjmp_libfunc (libfunc_table[LTI_longjmp])

#define unwind_sjlj_register_libfunc (libfunc_table[LTI_unwind_sjlj_register])

#define unwind_sjlj_unregister_libfunc \

  (libfunc_table[LTI_unwind_sjlj_unregister])

#define profile_function_entry_libfunc  (libfunc_table[LTI_profile_function_entry])

#define profile_function_exit_libfunc   (libfunc_table[LTI_profile_function_exit])

#define synchronize_libfunc     (libfunc_table[LTI_synchronize])

#define gcov_flush_libfunc      (libfunc_table[LTI_gcov_flush])

/* In explow.c */

extern void set_stack_check_libfunc (const char *);

#endif /* GCC_LIBFUNCS_H */