1 /* Default target hook functions. 2 Copyright (C) 2003-2019 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_TARGHOOKS_H 21 #define GCC_TARGHOOKS_H 22 23 extern bool default_legitimate_address_p (machine_mode, rtx, bool); 24 25 extern void default_external_libcall (rtx); 26 extern rtx default_legitimize_address (rtx, rtx, machine_mode); 27 extern bool default_legitimize_address_displacement (rtx *, rtx *, 28 poly_int64, machine_mode); 29 extern bool default_const_not_ok_for_debug_p (rtx); 30 31 extern int default_unspec_may_trap_p (const_rtx, unsigned); 32 extern machine_mode default_promote_function_mode (const_tree, machine_mode, 33 int *, const_tree, int); 34 extern machine_mode default_promote_function_mode_always_promote 35 (const_tree, machine_mode, int *, const_tree, int); 36 37 extern machine_mode default_cc_modes_compatible (machine_mode, 38 machine_mode); 39 40 extern bool default_return_in_memory (const_tree, const_tree); 41 42 extern rtx default_expand_builtin_saveregs (void); 43 extern void default_setup_incoming_varargs (cumulative_args_t, machine_mode, tree, int *, int); 44 extern rtx default_builtin_setjmp_frame_value (void); 45 extern bool default_pretend_outgoing_varargs_named (cumulative_args_t); 46 47 extern scalar_int_mode default_eh_return_filter_mode (void); 48 extern scalar_int_mode default_libgcc_cmp_return_mode (void); 49 extern scalar_int_mode default_libgcc_shift_count_mode (void); 50 extern scalar_int_mode default_unwind_word_mode (void); 51 extern unsigned HOST_WIDE_INT default_shift_truncation_mask 52 (machine_mode); 53 extern unsigned int default_min_divisions_for_recip_mul (machine_mode); 54 extern int default_mode_rep_extended (scalar_int_mode, scalar_int_mode); 55 56 extern tree default_stack_protect_guard (void); 57 extern tree default_external_stack_protect_fail (void); 58 extern tree default_hidden_stack_protect_fail (void); 59 60 extern machine_mode default_mode_for_suffix (char); 61 62 extern tree default_cxx_guard_type (void); 63 extern tree default_cxx_get_cookie_size (tree); 64 65 extern bool hook_pass_by_reference_must_pass_in_stack 66 (cumulative_args_t, machine_mode mode, const_tree, bool); 67 extern bool hook_callee_copies_named 68 (cumulative_args_t ca, machine_mode, const_tree, bool); 69 70 extern void default_print_operand (FILE *, rtx, int); 71 extern void default_print_operand_address (FILE *, machine_mode, rtx); 72 extern bool default_print_operand_punct_valid_p (unsigned char); 73 extern tree default_mangle_assembler_name (const char *); 74 75 extern machine_mode default_translate_mode_attribute (machine_mode); 76 extern bool default_scalar_mode_supported_p (scalar_mode); 77 extern bool default_libgcc_floating_mode_supported_p (scalar_float_mode); 78 extern opt_scalar_float_mode default_floatn_mode (int, bool); 79 extern bool default_floatn_builtin_p (int); 80 extern bool targhook_words_big_endian (void); 81 extern bool targhook_float_words_big_endian (void); 82 extern bool default_float_exceptions_rounding_supported_p (void); 83 extern bool default_decimal_float_supported_p (void); 84 extern bool default_fixed_point_supported_p (void); 85 86 extern bool default_has_ifunc_p (void); 87 88 extern const char * default_invalid_within_doloop (const rtx_insn *); 89 90 extern tree default_builtin_vectorized_function (unsigned int, tree, tree); 91 extern tree default_builtin_md_vectorized_function (tree, tree, tree); 92 93 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree); 94 95 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int); 96 97 extern tree default_builtin_reciprocal (tree); 98 99 extern HOST_WIDE_INT default_static_rtx_alignment (machine_mode); 100 extern HOST_WIDE_INT default_constant_alignment (const_tree, HOST_WIDE_INT); 101 extern HOST_WIDE_INT constant_alignment_word_strings (const_tree, 102 HOST_WIDE_INT); 103 extern HOST_WIDE_INT default_vector_alignment (const_tree); 104 105 extern poly_uint64 default_preferred_vector_alignment (const_tree); 106 extern bool default_builtin_vector_alignment_reachable (const_tree, bool); 107 extern bool 108 default_builtin_support_vector_misalignment (machine_mode mode, 109 const_tree, 110 int, bool); 111 extern machine_mode default_preferred_simd_mode (scalar_mode mode); 112 extern machine_mode default_split_reduction (machine_mode); 113 extern void default_autovectorize_vector_sizes (vector_sizes *); 114 extern opt_machine_mode default_get_mask_mode (poly_uint64, poly_uint64); 115 extern bool default_empty_mask_is_expensive (unsigned); 116 extern void *default_init_cost (struct loop *); 117 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt, 118 struct _stmt_vec_info *, int, 119 enum vect_cost_model_location); 120 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *); 121 extern void default_destroy_cost_data (void *); 122 123 /* OpenACC hooks. */ 124 extern bool default_goacc_validate_dims (tree, int [], int, unsigned); 125 extern int default_goacc_dim_limit (int); 126 extern bool default_goacc_fork_join (gcall *, const int [], bool); 127 extern void default_goacc_reduction (gcall *); 128 129 /* These are here, and not in hooks.[ch], because not all users of 130 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */ 131 132 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t); 133 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t); 134 135 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false 136 (cumulative_args_t, machine_mode, const_tree, bool); 137 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true 138 (cumulative_args_t, machine_mode, const_tree, bool); 139 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 140 (cumulative_args_t, machine_mode, tree, bool); 141 extern void hook_void_CUMULATIVE_ARGS_tree 142 (cumulative_args_t, tree); 143 extern const char *hook_invalid_arg_for_unprototyped_fn 144 (const_tree, const_tree, const_tree); 145 extern void default_function_arg_advance 146 (cumulative_args_t, machine_mode, const_tree, bool); 147 extern HOST_WIDE_INT default_function_arg_offset (machine_mode, const_tree); 148 extern pad_direction default_function_arg_padding (machine_mode, const_tree); 149 extern rtx default_function_arg 150 (cumulative_args_t, machine_mode, const_tree, bool); 151 extern rtx default_function_incoming_arg 152 (cumulative_args_t, machine_mode, const_tree, bool); 153 extern unsigned int default_function_arg_boundary (machine_mode, 154 const_tree); 155 extern unsigned int default_function_arg_round_boundary (machine_mode, 156 const_tree); 157 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int); 158 extern rtx default_function_value (const_tree, const_tree, bool); 159 extern rtx default_libcall_value (machine_mode, const_rtx); 160 extern bool default_function_value_regno_p (const unsigned int); 161 extern rtx default_internal_arg_pointer (void); 162 extern rtx default_static_chain (const_tree, bool); 163 extern void default_trampoline_init (rtx, tree, rtx); 164 extern poly_int64 default_return_pops_args (tree, tree, poly_int64); 165 extern reg_class_t default_branch_target_register_class (void); 166 extern reg_class_t default_ira_change_pseudo_allocno_class (int, reg_class_t, 167 reg_class_t); 168 extern bool default_lra_p (void); 169 extern int default_register_priority (int); 170 extern bool default_register_usage_leveling_p (void); 171 extern bool default_different_addr_displacement_p (void); 172 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t, 173 machine_mode, 174 secondary_reload_info *); 175 extern machine_mode default_secondary_memory_needed_mode (machine_mode); 176 extern void default_target_option_override (void); 177 extern void hook_void_bitmap (bitmap); 178 extern int default_reloc_rw_mask (void); 179 extern bool default_generate_pic_addr_diff_vec (void); 180 extern tree default_mangle_decl_assembler_name (tree, tree); 181 extern tree default_emutls_var_fields (tree, tree *); 182 extern tree default_emutls_var_init (tree, tree, tree); 183 extern unsigned int default_hard_regno_nregs (unsigned int, machine_mode); 184 extern bool default_hard_regno_scratch_ok (unsigned int); 185 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t); 186 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int); 187 extern bool default_target_option_pragma_parse (tree, tree); 188 extern bool default_target_can_inline_p (tree, tree); 189 extern bool default_valid_pointer_mode (scalar_int_mode); 190 extern bool default_ref_may_alias_errno (struct ao_ref *); 191 extern scalar_int_mode default_addr_space_pointer_mode (addr_space_t); 192 extern scalar_int_mode default_addr_space_address_mode (addr_space_t); 193 extern bool default_addr_space_valid_pointer_mode (scalar_int_mode, 194 addr_space_t); 195 extern bool default_addr_space_legitimate_address_p (machine_mode, rtx, 196 bool, addr_space_t); 197 extern rtx default_addr_space_legitimize_address (rtx, rtx, machine_mode, 198 addr_space_t); 199 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t); 200 extern bool default_addr_space_zero_address_valid (addr_space_t); 201 extern int default_addr_space_debug (addr_space_t); 202 extern void default_addr_space_diagnose_usage (addr_space_t, location_t); 203 extern rtx default_addr_space_convert (rtx, tree, tree); 204 extern unsigned int default_case_values_threshold (void); 205 extern bool default_have_conditional_execution (void); 206 207 extern bool default_libc_has_function (enum function_class); 208 extern bool no_c99_libc_has_function (enum function_class); 209 extern bool gnu_libc_has_function (enum function_class); 210 211 extern tree default_builtin_tm_load_store (tree); 212 213 extern int default_memory_move_cost (machine_mode, reg_class_t, bool); 214 extern int default_register_move_cost (machine_mode, reg_class_t, 215 reg_class_t); 216 extern bool default_slow_unaligned_access (machine_mode, unsigned int); 217 extern HOST_WIDE_INT default_estimated_poly_value (poly_int64); 218 219 extern bool default_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT, 220 unsigned int, 221 enum by_pieces_operation, 222 bool); 223 extern int default_compare_by_pieces_branch_ratio (machine_mode); 224 225 extern void default_print_patchable_function_entry (FILE *, 226 unsigned HOST_WIDE_INT, 227 bool); 228 extern bool default_profile_before_prologue (void); 229 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t); 230 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t); 231 extern reg_class_t default_preferred_rename_class (reg_class_t rclass); 232 extern bool default_class_likely_spilled_p (reg_class_t); 233 extern unsigned char default_class_max_nregs (reg_class_t, machine_mode); 234 235 extern enum unwind_info_type default_debug_unwind_info (void); 236 237 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool); 238 239 extern section * default_function_section(tree decl, enum node_frequency freq, 240 bool startup, bool exit); 241 extern unsigned int default_dwarf_poly_indeterminate_value (unsigned int, 242 unsigned int *, 243 int *); 244 extern machine_mode default_dwarf_frame_reg_mode (int); 245 extern fixed_size_mode default_get_reg_raw_mode (int); 246 extern bool default_keep_leaf_when_profiled (); 247 248 extern void *default_get_pch_validity (size_t *); 249 extern const char *default_pch_valid_p (const void *, size_t); 250 251 extern void default_asm_output_ident_directive (const char*); 252 253 extern scalar_int_mode default_cstore_mode (enum insn_code); 254 extern bool default_member_type_forces_blk (const_tree, machine_mode); 255 extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *); 256 extern tree build_va_arg_indirect_ref (tree); 257 extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *); 258 extern bool can_use_doloop_if_innermost (const widest_int &, 259 const widest_int &, 260 unsigned int, bool); 261 262 extern rtx default_load_bounds_for_arg (rtx, rtx, rtx); 263 extern void default_store_bounds_for_arg (rtx, rtx, rtx, rtx); 264 extern rtx default_load_returned_bounds (rtx); 265 extern void default_store_returned_bounds (rtx,rtx); 266 extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED, 267 machine_mode mode ATTRIBUTE_UNUSED, 268 tree type ATTRIBUTE_UNUSED, 269 int *pretend_arg_size ATTRIBUTE_UNUSED, 270 int second_time ATTRIBUTE_UNUSED); 271 extern bool default_optab_supported_p (int, machine_mode, machine_mode, 272 optimization_type); 273 extern unsigned int default_max_noce_ifcvt_seq_cost (edge); 274 extern bool default_noce_conversion_profitable_p (rtx_insn *, 275 struct noce_if_info *); 276 extern unsigned int default_min_arithmetic_precision (void); 277 278 extern enum flt_eval_method 279 default_excess_precision (enum excess_precision_type ATTRIBUTE_UNUSED); 280 extern HOST_WIDE_INT default_stack_clash_protection_alloca_probe_range (void); 281 extern void default_select_early_remat_modes (sbitmap); 282 extern tree default_preferred_else_value (unsigned, tree, unsigned, tree *); 283 284 extern bool default_have_speculation_safe_value (bool); 285 extern bool speculation_safe_value_not_needed (bool); 286 extern rtx default_speculation_safe_value (machine_mode, rtx, rtx, rtx); 287 extern void default_remove_extra_call_preserved_regs (rtx_insn *, 288 HARD_REG_SET *); 289 290 #endif /* GCC_TARGHOOKS_H */ 291