1 /* Default target hook functions. 2 Copyright (C) 2003-2013 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 targhook_words_big_endian (void); 71 extern bool targhook_float_words_big_endian (void); 72 extern bool default_decimal_float_supported_p (void); 73 extern bool default_fixed_point_supported_p (void); 74 75 extern const char * default_invalid_within_doloop (const_rtx); 76 77 extern tree default_builtin_vectorized_function (tree, tree, tree); 78 79 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree); 80 81 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int); 82 83 extern tree default_builtin_reciprocal (unsigned int, bool, bool); 84 85 extern HOST_WIDE_INT default_vector_alignment (const_tree); 86 87 extern bool default_builtin_vector_alignment_reachable (const_tree, bool); 88 extern bool 89 default_builtin_support_vector_misalignment (enum machine_mode mode, 90 const_tree, 91 int, bool); 92 extern enum machine_mode default_preferred_simd_mode (enum machine_mode mode); 93 extern unsigned int default_autovectorize_vector_sizes (void); 94 extern void *default_init_cost (struct loop *); 95 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt, 96 struct _stmt_vec_info *, int, 97 enum vect_cost_model_location); 98 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *); 99 extern void default_destroy_cost_data (void *); 100 101 /* These are here, and not in hooks.[ch], because not all users of 102 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */ 103 104 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t); 105 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t); 106 107 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false 108 (cumulative_args_t, enum machine_mode, const_tree, bool); 109 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true 110 (cumulative_args_t, enum machine_mode, const_tree, bool); 111 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 112 (cumulative_args_t, enum machine_mode, tree, bool); 113 extern const char *hook_invalid_arg_for_unprototyped_fn 114 (const_tree, const_tree, const_tree); 115 extern void default_function_arg_advance 116 (cumulative_args_t, enum machine_mode, const_tree, bool); 117 extern rtx default_function_arg 118 (cumulative_args_t, enum machine_mode, const_tree, bool); 119 extern rtx default_function_incoming_arg 120 (cumulative_args_t, enum machine_mode, const_tree, bool); 121 extern unsigned int default_function_arg_boundary (enum machine_mode, 122 const_tree); 123 extern unsigned int default_function_arg_round_boundary (enum machine_mode, 124 const_tree); 125 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int); 126 extern rtx default_function_value (const_tree, const_tree, bool); 127 extern rtx default_libcall_value (enum machine_mode, const_rtx); 128 extern bool default_function_value_regno_p (const unsigned int); 129 extern rtx default_internal_arg_pointer (void); 130 extern rtx default_static_chain (const_tree, bool); 131 extern void default_trampoline_init (rtx, tree, rtx); 132 extern int default_return_pops_args (tree, tree, int); 133 extern reg_class_t default_branch_target_register_class (void); 134 extern bool default_lra_p (void); 135 extern int default_register_priority (int); 136 extern bool default_different_addr_displacement_p (void); 137 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t, 138 enum machine_mode, 139 secondary_reload_info *); 140 extern void default_target_option_override (void); 141 extern void hook_void_bitmap (bitmap); 142 extern int default_reloc_rw_mask (void); 143 extern tree default_mangle_decl_assembler_name (tree, tree); 144 extern tree default_emutls_var_fields (tree, tree *); 145 extern tree default_emutls_var_init (tree, tree, tree); 146 extern bool default_hard_regno_scratch_ok (unsigned int); 147 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t); 148 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int); 149 extern bool default_target_option_pragma_parse (tree, tree); 150 extern bool default_target_can_inline_p (tree, tree); 151 extern bool default_valid_pointer_mode (enum machine_mode); 152 extern bool default_ref_may_alias_errno (struct ao_ref_s *); 153 extern enum machine_mode default_addr_space_pointer_mode (addr_space_t); 154 extern enum machine_mode default_addr_space_address_mode (addr_space_t); 155 extern bool default_addr_space_valid_pointer_mode (enum machine_mode, 156 addr_space_t); 157 extern bool default_addr_space_legitimate_address_p (enum machine_mode, rtx, 158 bool, addr_space_t); 159 extern rtx default_addr_space_legitimize_address (rtx, rtx, enum machine_mode, 160 addr_space_t); 161 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t); 162 extern rtx default_addr_space_convert (rtx, tree, tree); 163 extern unsigned int default_case_values_threshold (void); 164 extern bool default_have_conditional_execution (void); 165 166 extern tree default_builtin_tm_load_store (tree); 167 168 extern int default_memory_move_cost (enum machine_mode, reg_class_t, bool); 169 extern int default_register_move_cost (enum machine_mode, reg_class_t, 170 reg_class_t); 171 172 extern bool default_profile_before_prologue (void); 173 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t); 174 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t); 175 extern reg_class_t default_preferred_rename_class (reg_class_t rclass); 176 extern bool default_class_likely_spilled_p (reg_class_t); 177 extern unsigned char default_class_max_nregs (reg_class_t, enum machine_mode); 178 179 extern enum unwind_info_type default_debug_unwind_info (void); 180 181 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool); 182 183 extern int default_label_align_after_barrier_max_skip (rtx); 184 extern int default_loop_align_max_skip (rtx); 185 extern int default_label_align_max_skip (rtx); 186 extern int default_jump_align_max_skip (rtx); 187 extern section * default_function_section(tree decl, enum node_frequency freq, 188 bool startup, bool exit); 189 extern enum machine_mode default_get_reg_raw_mode(int); 190 191 extern void *default_get_pch_validity (size_t *); 192 extern const char *default_pch_valid_p (const void *, size_t); 193 194 extern void default_asm_output_ident_directive (const char*); 195 196 extern bool default_member_type_forces_blk (const_tree, enum machine_mode); 197