gcc/targhooks.h

   1 /* Default target hook functions.
   2    Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 extern bool default_legitimate_address_p (enum machine_mode, rtx, bool);
  22
  23 extern void default_external_libcall (rtx);
  24 extern rtx default_legitimize_address (rtx, rtx, enum machine_mode);
  25
  26 extern int default_unspec_may_trap_p (const_rtx, unsigned);
  27 extern enum machine_mode default_promote_function_mode (const_tree, enum machine_mode,
  28                                                         int *, const_tree, int);
  29 extern enum machine_mode default_promote_function_mode_always_promote
  30                         (const_tree, enum machine_mode, int *, const_tree, int);
  31
  32 extern enum machine_mode default_cc_modes_compatible (enum machine_mode,
  33                                                       enum machine_mode);
  34
  35 extern bool default_return_in_memory (const_tree, const_tree);
  36
  37 extern rtx default_expand_builtin_saveregs (void);
  38 extern void default_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode, tree, int *, int);
  39 extern rtx default_builtin_setjmp_frame_value (void);
  40 extern bool default_pretend_outgoing_varargs_named (CUMULATIVE_ARGS *);
  41
  42 extern enum machine_mode default_eh_return_filter_mode (void);
  43 extern enum machine_mode default_libgcc_cmp_return_mode (void);
  44 extern enum machine_mode default_libgcc_shift_count_mode (void);
  45 extern enum machine_mode default_unwind_word_mode (void);
  46 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
  47   (enum machine_mode);
  48 extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode);
  49 extern int default_mode_rep_extended (enum machine_mode, enum machine_mode);
  50
  51 extern tree default_stack_protect_guard (void);
  52 extern tree default_external_stack_protect_fail (void);
  53 extern tree default_hidden_stack_protect_fail (void);
  54
  55 extern enum machine_mode default_mode_for_suffix (char);
  56
  57 extern tree default_cxx_guard_type (void);
  58 extern tree default_cxx_get_cookie_size (tree);
  59
  60 extern bool hook_pass_by_reference_must_pass_in_stack
  61   (CUMULATIVE_ARGS *, enum machine_mode mode, const_tree, bool);
  62 extern bool hook_callee_copies_named
  63   (CUMULATIVE_ARGS *ca, enum machine_mode, const_tree, bool);
  64
  65 extern void default_print_operand (FILE *, rtx, int);
  66 extern void default_print_operand_address (FILE *, rtx);
  67 extern bool default_print_operand_punct_valid_p (unsigned char);
  68 extern tree default_mangle_assembler_name (const char *);
  69
  70 extern bool default_asm_output_addr_const_extra (FILE *, rtx);
  71
  72 extern bool default_scalar_mode_supported_p (enum machine_mode);
  73 extern bool targhook_words_big_endian (void);
  74 extern bool targhook_float_words_big_endian (void);
  75 extern bool default_decimal_float_supported_p (void);
  76 extern bool default_fixed_point_supported_p (void);
  77
  78 extern const char * default_invalid_within_doloop (const_rtx);
  79
  80 extern tree default_builtin_vectorized_function (tree, tree, tree);
  81
  82 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree);
  83
  84 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int);
  85
  86 extern tree default_builtin_reciprocal (unsigned int, bool, bool);
  87
  88 extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
  89 extern bool
  90 default_builtin_support_vector_misalignment (enum machine_mode mode,
  91                                              const_tree,
  92                                              int, bool);
  93 extern enum machine_mode default_preferred_simd_mode (enum machine_mode mode);
  94 extern unsigned int default_autovectorize_vector_sizes (void);
  95
  96 /* These are here, and not in hooks.[ch], because not all users of
  97    hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS.  */
  98
  99 extern bool hook_bool_CUMULATIVE_ARGS_false (CUMULATIVE_ARGS *);
 100 extern bool hook_bool_CUMULATIVE_ARGS_true (CUMULATIVE_ARGS *);
 101
 102 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
 103   (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
 104 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
 105   (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
 106 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
 107   (CUMULATIVE_ARGS *, enum machine_mode, tree, bool);
 108 extern const char *hook_invalid_arg_for_unprototyped_fn
 109   (const_tree, const_tree, const_tree);
 110 extern void default_function_arg_advance
 111   (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
 112 extern rtx default_function_arg
 113   (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
 114 extern rtx default_function_incoming_arg
 115   (CUMULATIVE_ARGS *, enum machine_mode, const_tree, bool);
 116 extern unsigned int default_function_arg_boundary (enum machine_mode,
 117                                                    const_tree);
 118 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int);
 119 extern rtx default_function_value (const_tree, const_tree, bool);
 120 extern rtx default_libcall_value (enum machine_mode, const_rtx);
 121 extern bool default_function_value_regno_p (const unsigned int);
 122 extern rtx default_internal_arg_pointer (void);
 123 extern rtx default_static_chain (const_tree, bool);
 124 extern void default_trampoline_init (rtx, tree, rtx);
 125 extern int default_return_pops_args (tree, tree, int);
 126 extern reg_class_t default_branch_target_register_class (void);
 127 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t,
 128                                              enum machine_mode,
 129                                              secondary_reload_info *);
 130 extern void default_target_option_override (void);
 131 extern void hook_void_bitmap (bitmap);
 132 extern int default_reloc_rw_mask (void);
 133 extern tree default_mangle_decl_assembler_name (tree, tree);
 134 extern tree default_emutls_var_fields (tree, tree *);
 135 extern tree default_emutls_var_init (tree, tree, tree);
 136 extern bool default_hard_regno_scratch_ok (unsigned int);
 137 extern bool default_mode_dependent_address_p (const_rtx addr);
 138 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int);
 139 extern bool default_target_option_pragma_parse (tree, tree);
 140 extern bool default_target_can_inline_p (tree, tree);
 141 extern bool default_valid_pointer_mode (enum machine_mode);
 142 extern bool default_ref_may_alias_errno (struct ao_ref_s *);
 143 extern enum machine_mode default_addr_space_pointer_mode (addr_space_t);
 144 extern enum machine_mode default_addr_space_address_mode (addr_space_t);
 145 extern bool default_addr_space_valid_pointer_mode (enum machine_mode,
 146                                                    addr_space_t);
 147 extern bool default_addr_space_legitimate_address_p (enum machine_mode, rtx,
 148                                                      bool, addr_space_t);
 149 extern rtx default_addr_space_legitimize_address (rtx, rtx, enum machine_mode,
 150                                                   addr_space_t);
 151 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t);
 152 extern rtx default_addr_space_convert (rtx, tree, tree);
 153 extern unsigned int default_case_values_threshold (void);
 154 extern bool default_have_conditional_execution (void);
 155 extern int default_memory_move_cost (enum machine_mode, reg_class_t, bool);
 156 extern int default_register_move_cost (enum machine_mode, reg_class_t,
 157                                        reg_class_t);
 158
 159 extern bool default_profile_before_prologue (void);
 160 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t);
 161 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t);
 162 extern reg_class_t default_preferred_rename_class (reg_class_t rclass);
 163 extern bool default_class_likely_spilled_p (reg_class_t);
 164
 165 extern enum unwind_info_type default_debug_unwind_info (void);
 166 extern enum unwind_info_type default_except_unwind_info (struct gcc_options *);
 167 extern enum unwind_info_type dwarf2_except_unwind_info (struct gcc_options *);
 168 extern enum unwind_info_type sjlj_except_unwind_info (struct gcc_options *);
 169
 170 extern int default_label_align_after_barrier_max_skip (rtx);
 171 extern int default_loop_align_max_skip (rtx);
 172 extern int default_label_align_max_skip (rtx);
 173 extern int default_jump_align_max_skip (rtx);
 174 extern section * default_function_section(tree decl, enum node_frequency freq,
 175                                           bool startup, bool exit);
 176 extern enum machine_mode default_get_reg_raw_mode(int);
 177
 178 extern const struct default_options empty_optimization_table[];
 179
 180 extern bool default_target_handle_option (struct gcc_options *,
 181                                           struct gcc_options *,
 182                                           const struct cl_decoded_option *,
 183                                           location_t);
 184
 185 extern void *default_get_pch_validity (size_t *);
 186 extern const char *default_pch_valid_p (const void *, size_t);