1 /* Default target hook functions. 2 Copyright (C) 2003-2015 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 *, 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 (tree, tree, tree); 87 88 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree); 89 90 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int); 91 92 extern tree default_builtin_reciprocal (unsigned int, bool, bool); 93 94 extern HOST_WIDE_INT default_vector_alignment (const_tree); 95 96 extern bool default_builtin_vector_alignment_reachable (const_tree, bool); 97 extern bool 98 default_builtin_support_vector_misalignment (machine_mode mode, 99 const_tree, 100 int, bool); 101 extern machine_mode default_preferred_simd_mode (machine_mode mode); 102 extern unsigned int default_autovectorize_vector_sizes (void); 103 extern void *default_init_cost (struct loop *); 104 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt, 105 struct _stmt_vec_info *, int, 106 enum vect_cost_model_location); 107 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *); 108 extern void default_destroy_cost_data (void *); 109 110 /* These are here, and not in hooks.[ch], because not all users of 111 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */ 112 113 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t); 114 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t); 115 116 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false 117 (cumulative_args_t, machine_mode, const_tree, bool); 118 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true 119 (cumulative_args_t, machine_mode, const_tree, bool); 120 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 121 (cumulative_args_t, machine_mode, tree, bool); 122 extern const char *hook_invalid_arg_for_unprototyped_fn 123 (const_tree, const_tree, const_tree); 124 extern void default_function_arg_advance 125 (cumulative_args_t, machine_mode, const_tree, bool); 126 extern rtx default_function_arg 127 (cumulative_args_t, machine_mode, const_tree, bool); 128 extern rtx default_function_incoming_arg 129 (cumulative_args_t, machine_mode, const_tree, bool); 130 extern unsigned int default_function_arg_boundary (machine_mode, 131 const_tree); 132 extern unsigned int default_function_arg_round_boundary (machine_mode, 133 const_tree); 134 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int); 135 extern rtx default_function_value (const_tree, const_tree, bool); 136 extern rtx default_libcall_value (machine_mode, const_rtx); 137 extern bool default_function_value_regno_p (const unsigned int); 138 extern rtx default_internal_arg_pointer (void); 139 extern rtx default_static_chain (const_tree, bool); 140 extern void default_trampoline_init (rtx, tree, rtx); 141 extern int default_return_pops_args (tree, tree, int); 142 extern reg_class_t default_branch_target_register_class (void); 143 extern bool default_lra_p (void); 144 extern int default_register_priority (int); 145 extern bool default_register_usage_leveling_p (void); 146 extern bool default_different_addr_displacement_p (void); 147 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t, 148 machine_mode, 149 secondary_reload_info *); 150 extern void default_target_option_override (void); 151 extern void hook_void_bitmap (bitmap); 152 extern int default_reloc_rw_mask (void); 153 extern tree default_mangle_decl_assembler_name (tree, tree); 154 extern tree default_emutls_var_fields (tree, tree *); 155 extern tree default_emutls_var_init (tree, tree, tree); 156 extern bool default_hard_regno_scratch_ok (unsigned int); 157 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t); 158 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int); 159 extern bool default_target_option_pragma_parse (tree, tree); 160 extern bool default_target_can_inline_p (tree, tree); 161 extern bool default_valid_pointer_mode (machine_mode); 162 extern bool default_ref_may_alias_errno (struct ao_ref *); 163 extern machine_mode default_addr_space_pointer_mode (addr_space_t); 164 extern machine_mode default_addr_space_address_mode (addr_space_t); 165 extern bool default_addr_space_valid_pointer_mode (machine_mode, 166 addr_space_t); 167 extern bool default_addr_space_legitimate_address_p (machine_mode, rtx, 168 bool, addr_space_t); 169 extern rtx default_addr_space_legitimize_address (rtx, rtx, machine_mode, 170 addr_space_t); 171 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t); 172 extern rtx default_addr_space_convert (rtx, tree, tree); 173 extern unsigned int default_case_values_threshold (void); 174 extern bool default_have_conditional_execution (void); 175 176 extern bool default_libc_has_function (enum function_class); 177 extern bool no_c99_libc_has_function (enum function_class); 178 extern bool gnu_libc_has_function (enum function_class); 179 180 extern tree default_builtin_tm_load_store (tree); 181 182 extern int default_memory_move_cost (machine_mode, reg_class_t, bool); 183 extern int default_register_move_cost (machine_mode, reg_class_t, 184 reg_class_t); 185 186 extern bool default_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT, 187 unsigned int, 188 enum by_pieces_operation, 189 bool); 190 191 extern bool default_profile_before_prologue (void); 192 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t); 193 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t); 194 extern reg_class_t default_preferred_rename_class (reg_class_t rclass); 195 extern bool default_class_likely_spilled_p (reg_class_t); 196 extern unsigned char default_class_max_nregs (reg_class_t, machine_mode); 197 198 extern enum unwind_info_type default_debug_unwind_info (void); 199 200 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool); 201 202 extern int default_label_align_after_barrier_max_skip (rtx_insn *); 203 extern int default_loop_align_max_skip (rtx_insn *); 204 extern int default_label_align_max_skip (rtx_insn *); 205 extern int default_jump_align_max_skip (rtx_insn *); 206 extern section * default_function_section(tree decl, enum node_frequency freq, 207 bool startup, bool exit); 208 extern machine_mode default_dwarf_frame_reg_mode (int); 209 extern machine_mode default_get_reg_raw_mode (int); 210 extern bool default_keep_leaf_when_profiled (); 211 212 extern void *default_get_pch_validity (size_t *); 213 extern const char *default_pch_valid_p (const void *, size_t); 214 215 extern void default_asm_output_ident_directive (const char*); 216 217 extern machine_mode default_cstore_mode (enum insn_code); 218 extern bool default_member_type_forces_blk (const_tree, machine_mode); 219 extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *); 220 extern tree build_va_arg_indirect_ref (tree); 221 extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *); 222 extern bool can_use_doloop_if_innermost (const widest_int &, 223 const widest_int &, 224 unsigned int, bool); 225 226 extern rtx default_load_bounds_for_arg (rtx, rtx, rtx); 227 extern void default_store_bounds_for_arg (rtx, rtx, rtx, rtx); 228 extern rtx default_load_returned_bounds (rtx); 229 extern void default_store_returned_bounds (rtx,rtx); 230 extern tree default_chkp_bound_type (void); 231 extern enum machine_mode default_chkp_bound_mode (void); 232 extern tree default_builtin_chkp_function (unsigned int); 233 extern rtx default_chkp_function_value_bounds (const_tree, const_tree, bool); 234 extern tree default_chkp_make_bounds_constant (HOST_WIDE_INT lb, HOST_WIDE_INT ub); 235 extern int default_chkp_initialize_bounds (tree var, tree lb, tree ub, 236 tree *stmts); 237 extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED, 238 enum machine_mode mode ATTRIBUTE_UNUSED, 239 tree type ATTRIBUTE_UNUSED, 240 int *pretend_arg_size ATTRIBUTE_UNUSED, 241 int second_time ATTRIBUTE_UNUSED); 242 #endif /* GCC_TARGHOOKS_H */ 243