gcc/builtins.h

/* Expand builtin functions.
   Copyright (C) 1988-2013 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_BUILTINS_H
#define GCC_BUILTINS_H

/* Target-dependent globals.  */
struct target_builtins {
  /* For each register that may be used for calling a function, this
     gives a mode used to copy the register's value.  VOIDmode indicates
     the register is not used for calling a function.  If the machine
     has register windows, this gives only the outbound registers.
     INCOMING_REGNO gives the corresponding inbound register.  */
  enum machine_mode x_apply_args_mode[FIRST_PSEUDO_REGISTER];

  /* For each register that may be used for returning values, this gives
     a mode used to copy the register's value.  VOIDmode indicates the
     register is not used for returning values.  If the machine has
     register windows, this gives only the outbound registers.
     INCOMING_REGNO gives the corresponding inbound register.  */
  enum machine_mode x_apply_result_mode[FIRST_PSEUDO_REGISTER];
};

extern GTY(()) struct target_builtins default_target_builtins;
#if SWITCHABLE_TARGET
extern struct target_builtins *this_target_builtins;
#else
#define this_target_builtins (&default_target_builtins)
#endif

#endif