gcc/targhooks.h

   1 /* Default target hook functions.
   2    Copyright (C) 2003, 2004, 2005, 2007 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 extern void default_external_libcall (rtx);
  21
  22 extern enum machine_mode default_cc_modes_compatible (enum machine_mode,
  23                                                       enum machine_mode);
  24
  25 extern bool default_return_in_memory (tree, tree);
  26
  27 extern rtx default_expand_builtin_saveregs (void);
  28 extern void default_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int);
  29 extern rtx default_builtin_setjmp_frame_value (void);
  30 extern bool default_pretend_outgoing_varargs_named (CUMULATIVE_ARGS *);
  31
  32 extern enum machine_mode default_eh_return_filter_mode (void);
  33 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
  34   (enum machine_mode);
  35 extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode);
  36 extern int default_mode_rep_extended (enum machine_mode, enum machine_mode);
  37
  38 extern tree default_stack_protect_guard (void);
  39 extern tree default_external_stack_protect_fail (void);
  40 extern tree default_hidden_stack_protect_fail (void);
  41
  42 extern tree default_cxx_guard_type (void);
  43 extern tree default_cxx_get_cookie_size (tree);
  44
  45 extern bool hook_pass_by_reference_must_pass_in_stack
  46   (CUMULATIVE_ARGS *, enum machine_mode mode, tree, bool);
  47 extern bool hook_callee_copies_named
  48   (CUMULATIVE_ARGS *ca, enum machine_mode, tree, bool);
  49
  50 extern void default_unwind_emit (FILE *, rtx);
  51
  52 extern bool default_scalar_mode_supported_p (enum machine_mode);
  53 extern bool default_decimal_float_supported_p (void);
  54
  55 extern const char * default_invalid_within_doloop (rtx);
  56
  57 extern bool default_narrow_bitfield (void);
  58
  59 extern bool default_builtin_vector_alignment_reachable (tree, bool);
  60
  61 /* These are here, and not in hooks.[ch], because not all users of
  62    hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS.  */
  63
  64 extern bool hook_bool_CUMULATIVE_ARGS_false (CUMULATIVE_ARGS *);
  65 extern bool hook_bool_CUMULATIVE_ARGS_true (CUMULATIVE_ARGS *);
  66
  67 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
  68   (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
  69 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
  70   (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
  71 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
  72   (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
  73 extern const char *hook_invalid_arg_for_unprototyped_fn
  74   (tree, tree, tree);
  75 extern bool hook_bool_rtx_commutative_p (rtx, int);
  76 extern rtx default_function_value (tree, tree, bool);
  77 extern rtx default_internal_arg_pointer (void);
  78 extern enum reg_class default_secondary_reload (bool, rtx, enum reg_class,
  79                                                 enum machine_mode,
  80                                                 secondary_reload_info *);
  81 extern void hook_void_bitmap (bitmap);
  82
  83 extern int default_reloc_rw_mask (void);