1 /* Default target hook functions. 2 Copyright (C) 2003-2016 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 machine_mode); 29 30 extern int default_unspec_may_trap_p (const_rtx, unsigned); 31 extern machine_mode default_promote_function_mode (const_tree, machine_mode, 32 int *, const_tree, int); 33 extern machine_mode default_promote_function_mode_always_promote 34 (const_tree, machine_mode, int *, const_tree, int); 35 36 extern machine_mode default_cc_modes_compatible (machine_mode, 37 machine_mode); 38 39 extern bool default_return_in_memory (const_tree, const_tree); 40 41 extern rtx default_expand_builtin_saveregs (void); 42 extern void default_setup_incoming_varargs (cumulative_args_t, machine_mode, tree, int *, int); 43 extern rtx default_builtin_setjmp_frame_value (void); 44 extern bool default_pretend_outgoing_varargs_named (cumulative_args_t); 45 46 extern machine_mode default_eh_return_filter_mode (void); 47 extern machine_mode default_libgcc_cmp_return_mode (void); 48 extern machine_mode default_libgcc_shift_count_mode (void); 49 extern machine_mode default_unwind_word_mode (void); 50 extern unsigned HOST_WIDE_INT default_shift_truncation_mask 51 (machine_mode); 52 extern unsigned int default_min_divisions_for_recip_mul (machine_mode); 53 extern int default_mode_rep_extended (machine_mode, machine_mode); 54 55 extern tree default_stack_protect_guard (void); 56 extern tree default_external_stack_protect_fail (void); 57 extern tree default_hidden_stack_protect_fail (void); 58 59 extern machine_mode default_mode_for_suffix (char); 60 61 extern tree default_cxx_guard_type (void); 62 extern tree default_cxx_get_cookie_size (tree); 63 64 extern bool hook_pass_by_reference_must_pass_in_stack 65 (cumulative_args_t, machine_mode mode, const_tree, bool); 66 extern bool hook_callee_copies_named 67 (cumulative_args_t ca, machine_mode, const_tree, bool); 68 69 extern void default_print_operand (FILE *, rtx, int); 70 extern void default_print_operand_address (FILE *, machine_mode, rtx); 71 extern bool default_print_operand_punct_valid_p (unsigned char); 72 extern tree default_mangle_assembler_name (const char *); 73 74 extern bool default_scalar_mode_supported_p (machine_mode); 75 extern bool default_libgcc_floating_mode_supported_p (machine_mode); 76 extern bool targhook_words_big_endian (void); 77 extern bool targhook_float_words_big_endian (void); 78 extern bool default_float_exceptions_rounding_supported_p (void); 79 extern bool default_decimal_float_supported_p (void); 80 extern bool default_fixed_point_supported_p (void); 81 82 extern bool default_has_ifunc_p (void); 83 84 extern const char * default_invalid_within_doloop (const rtx_insn *); 85 86 extern tree default_builtin_vectorized_function (unsigned int, tree, tree); 87 extern tree default_builtin_md_vectorized_function (tree, tree, tree); 88 89 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree); 90 91 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int); 92 93 extern tree default_builtin_reciprocal (tree); 94 95 extern HOST_WIDE_INT default_vector_alignment (const_tree); 96 97 extern bool default_builtin_vector_alignment_reachable (const_tree, bool); 98 extern bool 99 default_builtin_support_vector_misalignment (machine_mode mode, 100 const_tree, 101 int, bool); 102 extern machine_mode default_preferred_simd_mode (machine_mode mode); 103 extern unsigned int default_autovectorize_vector_sizes (void); 104 extern machine_mode default_get_mask_mode (unsigned, unsigned); 105 extern void *default_init_cost (struct loop *); 106 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt, 107 struct _stmt_vec_info *, int, 108 enum vect_cost_model_location); 109 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *); 110 extern void default_destroy_cost_data (void *); 111 112 /* OpenACC hooks. */ 113 extern bool default_goacc_validate_dims (tree, int [], int); 114 extern int default_goacc_dim_limit (int); 115 extern bool default_goacc_fork_join (gcall *, const int [], bool); 116 extern void default_goacc_reduction (gcall *); 117 118 /* These are here, and not in hooks.[ch], because not all users of 119 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */ 120 121 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t); 122 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t); 123 124 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false 125 (cumulative_args_t, machine_mode, const_tree, bool); 126 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true 127 (cumulative_args_t, machine_mode, const_tree, bool); 128 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 129 (cumulative_args_t, machine_mode, tree, bool); 130 extern const char *hook_invalid_arg_for_unprototyped_fn 131 (const_tree, const_tree, const_tree); 132 extern void default_function_arg_advance 133 (cumulative_args_t, machine_mode, const_tree, bool); 134 extern rtx default_function_arg 135 (cumulative_args_t, machine_mode, const_tree, bool); 136 extern rtx default_function_incoming_arg 137 (cumulative_args_t, machine_mode, const_tree, bool); 138 extern unsigned int default_function_arg_boundary (machine_mode, 139 const_tree); 140 extern unsigned int default_function_arg_round_boundary (machine_mode, 141 const_tree); 142 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int); 143 extern rtx default_function_value (const_tree, const_tree, bool); 144 extern rtx default_libcall_value (machine_mode, const_rtx); 145 extern bool default_function_value_regno_p (const unsigned int); 146 extern rtx default_internal_arg_pointer (void); 147 extern rtx default_static_chain (const_tree, bool); 148 extern void default_trampoline_init (rtx, tree, rtx); 149 extern int default_return_pops_args (tree, tree, int); 150 extern reg_class_t default_branch_target_register_class (void); 151 extern reg_class_t default_ira_change_pseudo_allocno_class (int, reg_class_t, 152 reg_class_t); 153 extern bool default_lra_p (void); 154 extern int default_register_priority (int); 155 extern bool default_register_usage_leveling_p (void); 156 extern bool default_different_addr_displacement_p (void); 157 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t, 158 machine_mode, 159 secondary_reload_info *); 160 extern void default_target_option_override (void); 161 extern void hook_void_bitmap (bitmap); 162 extern int default_reloc_rw_mask (void); 163 extern tree default_mangle_decl_assembler_name (tree, tree); 164 extern tree default_emutls_var_fields (tree, tree *); 165 extern tree default_emutls_var_init (tree, tree, tree); 166 extern bool default_hard_regno_scratch_ok (unsigned int); 167 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t); 168 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int); 169 extern bool default_target_option_pragma_parse (tree, tree); 170 extern bool default_target_can_inline_p (tree, tree); 171 extern bool default_valid_pointer_mode (machine_mode); 172 extern bool default_ref_may_alias_errno (struct ao_ref *); 173 extern machine_mode default_addr_space_pointer_mode (addr_space_t); 174 extern machine_mode default_addr_space_address_mode (addr_space_t); 175 extern bool default_addr_space_valid_pointer_mode (machine_mode, 176 addr_space_t); 177 extern bool default_addr_space_legitimate_address_p (machine_mode, rtx, 178 bool, addr_space_t); 179 extern rtx default_addr_space_legitimize_address (rtx, rtx, machine_mode, 180 addr_space_t); 181 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t); 182 extern bool default_addr_space_zero_address_valid (addr_space_t); 183 extern int default_addr_space_debug (addr_space_t); 184 extern rtx default_addr_space_convert (rtx, tree, tree); 185 extern unsigned int default_case_values_threshold (void); 186 extern bool default_have_conditional_execution (void); 187 188 extern bool default_libc_has_function (enum function_class); 189 extern bool no_c99_libc_has_function (enum function_class); 190 extern bool gnu_libc_has_function (enum function_class); 191 192 extern tree default_builtin_tm_load_store (tree); 193 194 extern int default_memory_move_cost (machine_mode, reg_class_t, bool); 195 extern int default_register_move_cost (machine_mode, reg_class_t, 196 reg_class_t); 197 198 extern bool default_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT, 199 unsigned int, 200 enum by_pieces_operation, 201 bool); 202 203 extern bool default_profile_before_prologue (void); 204 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t); 205 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t); 206 extern reg_class_t default_preferred_rename_class (reg_class_t rclass); 207 extern bool default_class_likely_spilled_p (reg_class_t); 208 extern unsigned char default_class_max_nregs (reg_class_t, machine_mode); 209 210 extern enum unwind_info_type default_debug_unwind_info (void); 211 212 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool); 213 214 extern int default_label_align_after_barrier_max_skip (rtx_insn *); 215 extern int default_loop_align_max_skip (rtx_insn *); 216 extern int default_label_align_max_skip (rtx_insn *); 217 extern int default_jump_align_max_skip (rtx_insn *); 218 extern section * default_function_section(tree decl, enum node_frequency freq, 219 bool startup, bool exit); 220 extern machine_mode default_dwarf_frame_reg_mode (int); 221 extern machine_mode default_get_reg_raw_mode (int); 222 extern bool default_keep_leaf_when_profiled (); 223 224 extern void *default_get_pch_validity (size_t *); 225 extern const char *default_pch_valid_p (const void *, size_t); 226 227 extern void default_asm_output_ident_directive (const char*); 228 229 extern machine_mode default_cstore_mode (enum insn_code); 230 extern bool default_member_type_forces_blk (const_tree, machine_mode); 231 extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *); 232 extern tree build_va_arg_indirect_ref (tree); 233 extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *); 234 extern bool can_use_doloop_if_innermost (const widest_int &, 235 const widest_int &, 236 unsigned int, bool); 237 238 extern rtx default_load_bounds_for_arg (rtx, rtx, rtx); 239 extern void default_store_bounds_for_arg (rtx, rtx, rtx, rtx); 240 extern rtx default_load_returned_bounds (rtx); 241 extern void default_store_returned_bounds (rtx,rtx); 242 extern tree default_chkp_bound_type (void); 243 extern enum machine_mode default_chkp_bound_mode (void); 244 extern tree default_builtin_chkp_function (unsigned int); 245 extern rtx default_chkp_function_value_bounds (const_tree, const_tree, bool); 246 extern tree default_chkp_make_bounds_constant (HOST_WIDE_INT lb, HOST_WIDE_INT ub); 247 extern int default_chkp_initialize_bounds (tree var, tree lb, tree ub, 248 tree *stmts); 249 extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED, 250 enum machine_mode mode ATTRIBUTE_UNUSED, 251 tree type ATTRIBUTE_UNUSED, 252 int *pretend_arg_size ATTRIBUTE_UNUSED, 253 int second_time ATTRIBUTE_UNUSED); 254 extern bool default_optab_supported_p (int, machine_mode, machine_mode, 255 optimization_type); 256 257 #endif /* GCC_TARGHOOKS_H */ 258