gcc/builtins.h

   1 /* Expand builtin functions.
   2    Copyright (C) 1988-2013 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef GCC_BUILTINS_H
  21 #define GCC_BUILTINS_H
  22
  23 /* Target-dependent globals.  */
  24 struct target_builtins {
  25   /* For each register that may be used for calling a function, this
  26      gives a mode used to copy the register's value.  VOIDmode indicates
  27      the register is not used for calling a function.  If the machine
  28      has register windows, this gives only the outbound registers.
  29      INCOMING_REGNO gives the corresponding inbound register.  */
  30   enum machine_mode x_apply_args_mode[FIRST_PSEUDO_REGISTER];
  31
  32   /* For each register that may be used for returning values, this gives
  33      a mode used to copy the register's value.  VOIDmode indicates the
  34      register is not used for returning values.  If the machine has
  35      register windows, this gives only the outbound registers.
  36      INCOMING_REGNO gives the corresponding inbound register.  */
  37   enum machine_mode x_apply_result_mode[FIRST_PSEUDO_REGISTER];
  38 };
  39
  40 extern GTY(()) struct target_builtins default_target_builtins;
  41 #if SWITCHABLE_TARGET
  42 extern struct target_builtins *this_target_builtins;
  43 #else
  44 #define this_target_builtins (&default_target_builtins)
  45 #endif
  46
  47 #endif