gcc/targhooks.h

   1 /* Default target hook functions.
   2    Copyright (C) 2003-2014 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 bool default_legitimate_address_p (enum machine_mode, rtx, bool);
  21
  22 extern void default_external_libcall (rtx);
  23 extern rtx default_legitimize_address (rtx, rtx, enum machine_mode);
  24
  25 extern int default_unspec_may_trap_p (const_rtx, unsigned);
  26 extern enum machine_mode default_promote_function_mode (const_tree, enum machine_mode,
  27                                                         int *, const_tree, int);
  28 extern enum machine_mode default_promote_function_mode_always_promote
  29                         (const_tree, enum machine_mode, int *, const_tree, int);
  30
  31 extern enum machine_mode default_cc_modes_compatible (enum machine_mode,
  32                                                       enum machine_mode);
  33
  34 extern bool default_return_in_memory (const_tree, const_tree);
  35
  36 extern rtx default_expand_builtin_saveregs (void);
  37 extern void default_setup_incoming_varargs (cumulative_args_t, enum machine_mode, tree, int *, int);
  38 extern rtx default_builtin_setjmp_frame_value (void);
  39 extern bool default_pretend_outgoing_varargs_named (cumulative_args_t);
  40
  41 extern enum machine_mode default_eh_return_filter_mode (void);
  42 extern enum machine_mode default_libgcc_cmp_return_mode (void);
  43 extern enum machine_mode default_libgcc_shift_count_mode (void);
  44 extern enum machine_mode default_unwind_word_mode (void);
  45 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
  46   (enum machine_mode);
  47 extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode);
  48 extern int default_mode_rep_extended (enum machine_mode, enum machine_mode);
  49
  50 extern tree default_stack_protect_guard (void);
  51 extern tree default_external_stack_protect_fail (void);
  52 extern tree default_hidden_stack_protect_fail (void);
  53
  54 extern enum machine_mode default_mode_for_suffix (char);
  55
  56 extern tree default_cxx_guard_type (void);
  57 extern tree default_cxx_get_cookie_size (tree);
  58
  59 extern bool hook_pass_by_reference_must_pass_in_stack
  60   (cumulative_args_t, enum machine_mode mode, const_tree, bool);
  61 extern bool hook_callee_copies_named
  62   (cumulative_args_t ca, enum machine_mode, const_tree, bool);
  63
  64 extern void default_print_operand (FILE *, rtx, int);
  65 extern void default_print_operand_address (FILE *, rtx);
  66 extern bool default_print_operand_punct_valid_p (unsigned char);
  67 extern tree default_mangle_assembler_name (const char *);
  68
  69 extern bool default_scalar_mode_supported_p (enum machine_mode);
  70 extern bool default_libgcc_floating_mode_supported_p (enum machine_mode);
  71 extern bool targhook_words_big_endian (void);
  72 extern bool targhook_float_words_big_endian (void);
  73 extern bool default_float_exceptions_rounding_supported_p (void);
  74 extern bool default_decimal_float_supported_p (void);
  75 extern bool default_fixed_point_supported_p (void);
  76
  77 extern bool default_has_ifunc_p (void);
  78
  79 extern const char * default_invalid_within_doloop (const rtx_insn *);
  80
  81 extern tree default_builtin_vectorized_function (tree, tree, tree);
  82
  83 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree);
  84
  85 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int);
  86
  87 extern tree default_builtin_reciprocal (unsigned int, bool, bool);
  88
  89 extern HOST_WIDE_INT default_vector_alignment (const_tree);
  90
  91 extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
  92 extern bool
  93 default_builtin_support_vector_misalignment (enum machine_mode mode,
  94                                              const_tree,
  95                                              int, bool);
  96 extern enum machine_mode default_preferred_simd_mode (enum machine_mode mode);
  97 extern unsigned int default_autovectorize_vector_sizes (void);
  98 extern void *default_init_cost (struct loop *);
  99 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt,
 100                                        struct _stmt_vec_info *, int,
 101                                        enum vect_cost_model_location);
 102 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *);
 103 extern void default_destroy_cost_data (void *);
 104
 105 /* These are here, and not in hooks.[ch], because not all users of
 106    hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS.  */
 107
 108 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t);
 109 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t);
 110
 111 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
 112   (cumulative_args_t, enum machine_mode, const_tree, bool);
 113 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
 114   (cumulative_args_t, enum machine_mode, const_tree, bool);
 115 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
 116   (cumulative_args_t, enum machine_mode, tree, bool);
 117 extern const char *hook_invalid_arg_for_unprototyped_fn
 118   (const_tree, const_tree, const_tree);
 119 extern void default_function_arg_advance
 120   (cumulative_args_t, enum machine_mode, const_tree, bool);
 121 extern rtx default_function_arg
 122   (cumulative_args_t, enum machine_mode, const_tree, bool);
 123 extern rtx default_function_incoming_arg
 124   (cumulative_args_t, enum machine_mode, const_tree, bool);
 125 extern unsigned int default_function_arg_boundary (enum machine_mode,
 126                                                    const_tree);
 127 extern unsigned int default_function_arg_round_boundary (enum machine_mode,
 128                                                          const_tree);
 129 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int);
 130 extern rtx default_function_value (const_tree, const_tree, bool);
 131 extern rtx default_libcall_value (enum machine_mode, const_rtx);
 132 extern bool default_function_value_regno_p (const unsigned int);
 133 extern rtx default_internal_arg_pointer (void);
 134 extern rtx default_static_chain (const_tree, bool);
 135 extern void default_trampoline_init (rtx, tree, rtx);
 136 extern int default_return_pops_args (tree, tree, int);
 137 extern reg_class_t default_branch_target_register_class (void);
 138 extern bool default_lra_p (void);
 139 extern int default_register_priority (int);
 140 extern bool default_register_usage_leveling_p (void);
 141 extern bool default_different_addr_displacement_p (void);
 142 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t,
 143                                              enum machine_mode,
 144                                              secondary_reload_info *);
 145 extern void default_target_option_override (void);
 146 extern void hook_void_bitmap (bitmap);
 147 extern int default_reloc_rw_mask (void);
 148 extern tree default_mangle_decl_assembler_name (tree, tree);
 149 extern tree default_emutls_var_fields (tree, tree *);
 150 extern tree default_emutls_var_init (tree, tree, tree);
 151 extern bool default_hard_regno_scratch_ok (unsigned int);
 152 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t);
 153 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int);
 154 extern bool default_target_option_pragma_parse (tree, tree);
 155 extern bool default_target_can_inline_p (tree, tree);
 156 extern bool default_valid_pointer_mode (enum machine_mode);
 157 extern bool default_ref_may_alias_errno (struct ao_ref *);
 158 extern enum machine_mode default_addr_space_pointer_mode (addr_space_t);
 159 extern enum machine_mode default_addr_space_address_mode (addr_space_t);
 160 extern bool default_addr_space_valid_pointer_mode (enum machine_mode,
 161                                                    addr_space_t);
 162 extern bool default_addr_space_legitimate_address_p (enum machine_mode, rtx,
 163                                                      bool, addr_space_t);
 164 extern rtx default_addr_space_legitimize_address (rtx, rtx, enum machine_mode,
 165                                                   addr_space_t);
 166 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t);
 167 extern rtx default_addr_space_convert (rtx, tree, tree);
 168 extern unsigned int default_case_values_threshold (void);
 169 extern bool default_have_conditional_execution (void);
 170
 171 extern bool default_libc_has_function (enum function_class);
 172 extern bool no_c99_libc_has_function (enum function_class);
 173 extern bool gnu_libc_has_function (enum function_class);
 174
 175 extern tree default_builtin_tm_load_store (tree);
 176
 177 extern int default_memory_move_cost (enum machine_mode, reg_class_t, bool);
 178 extern int default_register_move_cost (enum machine_mode, reg_class_t,
 179                                        reg_class_t);
 180
 181 extern bool default_profile_before_prologue (void);
 182 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t);
 183 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t);
 184 extern reg_class_t default_preferred_rename_class (reg_class_t rclass);
 185 extern bool default_class_likely_spilled_p (reg_class_t);
 186 extern unsigned char default_class_max_nregs (reg_class_t, enum machine_mode);
 187
 188 extern enum unwind_info_type default_debug_unwind_info (void);
 189
 190 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool);
 191
 192 extern int default_label_align_after_barrier_max_skip (rtx_insn *);
 193 extern int default_loop_align_max_skip (rtx_insn *);
 194 extern int default_label_align_max_skip (rtx_insn *);
 195 extern int default_jump_align_max_skip (rtx_insn *);
 196 extern section * default_function_section(tree decl, enum node_frequency freq,
 197                                           bool startup, bool exit);
 198 extern enum machine_mode default_dwarf_frame_reg_mode (int);
 199 extern enum machine_mode default_get_reg_raw_mode (int);
 200 extern bool default_keep_leaf_when_profiled ();
 201
 202 extern void *default_get_pch_validity (size_t *);
 203 extern const char *default_pch_valid_p (const void *, size_t);
 204
 205 extern void default_asm_output_ident_directive (const char*);
 206
 207 extern enum machine_mode default_cstore_mode (enum insn_code);
 208 extern bool default_member_type_forces_blk (const_tree, enum machine_mode);
 209 extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *);
 210 extern tree build_va_arg_indirect_ref (tree);
 211 extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
 212 extern bool can_use_doloop_if_innermost (const widest_int &,
 213                                          const widest_int &,
 214                                          unsigned int, bool);