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 targhook_words_big_endian (void); 71 extern bool targhook_float_words_big_endian (void); 72 extern bool default_float_exceptions_rounding_supported_p (void); 73 extern bool default_decimal_float_supported_p (void); 74 extern bool default_fixed_point_supported_p (void); 75 76 extern bool default_has_ifunc_p (void); 77 78 extern const char * default_invalid_within_doloop (const_rtx); 79 80 extern tree default_builtin_vectorized_function (tree, tree, tree); 81 82 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree); 83 84 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int); 85 86 extern tree default_builtin_reciprocal (unsigned int, bool, bool); 87 88 extern HOST_WIDE_INT default_vector_alignment (const_tree); 89 90 extern bool default_builtin_vector_alignment_reachable (const_tree, bool); 91 extern bool 92 default_builtin_support_vector_misalignment (enum machine_mode mode, 93 const_tree, 94 int, bool); 95 extern enum machine_mode default_preferred_simd_mode (enum machine_mode mode); 96 extern unsigned int default_autovectorize_vector_sizes (void); 97 extern void *default_init_cost (struct loop *); 98 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt, 99 struct _stmt_vec_info *, int, 100 enum vect_cost_model_location); 101 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *); 102 extern void default_destroy_cost_data (void *); 103 104 /* These are here, and not in hooks.[ch], because not all users of 105 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */ 106 107 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t); 108 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t); 109 110 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false 111 (cumulative_args_t, enum machine_mode, const_tree, bool); 112 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true 113 (cumulative_args_t, enum machine_mode, const_tree, bool); 114 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 115 (cumulative_args_t, enum machine_mode, tree, bool); 116 extern const char *hook_invalid_arg_for_unprototyped_fn 117 (const_tree, const_tree, const_tree); 118 extern void default_function_arg_advance 119 (cumulative_args_t, enum machine_mode, const_tree, bool); 120 extern rtx default_function_arg 121 (cumulative_args_t, enum machine_mode, const_tree, bool); 122 extern rtx default_function_incoming_arg 123 (cumulative_args_t, enum machine_mode, const_tree, bool); 124 extern unsigned int default_function_arg_boundary (enum machine_mode, 125 const_tree); 126 extern unsigned int default_function_arg_round_boundary (enum machine_mode, 127 const_tree); 128 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int); 129 extern rtx default_function_value (const_tree, const_tree, bool); 130 extern rtx default_libcall_value (enum machine_mode, const_rtx); 131 extern bool default_function_value_regno_p (const unsigned int); 132 extern rtx default_internal_arg_pointer (void); 133 extern rtx default_static_chain (const_tree, bool); 134 extern void default_trampoline_init (rtx, tree, rtx); 135 extern int default_return_pops_args (tree, tree, int); 136 extern reg_class_t default_branch_target_register_class (void); 137 extern bool default_lra_p (void); 138 extern int default_register_priority (int); 139 extern bool default_register_usage_leveling_p (void); 140 extern bool default_different_addr_displacement_p (void); 141 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t, 142 enum machine_mode, 143 secondary_reload_info *); 144 extern void default_target_option_override (void); 145 extern void hook_void_bitmap (bitmap); 146 extern int default_reloc_rw_mask (void); 147 extern tree default_mangle_decl_assembler_name (tree, tree); 148 extern tree default_emutls_var_fields (tree, tree *); 149 extern tree default_emutls_var_init (tree, tree, tree); 150 extern bool default_hard_regno_scratch_ok (unsigned int); 151 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t); 152 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int); 153 extern bool default_target_option_pragma_parse (tree, tree); 154 extern bool default_target_can_inline_p (tree, tree); 155 extern bool default_valid_pointer_mode (enum machine_mode); 156 extern bool default_ref_may_alias_errno (struct ao_ref *); 157 extern enum machine_mode default_addr_space_pointer_mode (addr_space_t); 158 extern enum machine_mode default_addr_space_address_mode (addr_space_t); 159 extern bool default_addr_space_valid_pointer_mode (enum machine_mode, 160 addr_space_t); 161 extern bool default_addr_space_legitimate_address_p (enum machine_mode, rtx, 162 bool, addr_space_t); 163 extern rtx default_addr_space_legitimize_address (rtx, rtx, enum machine_mode, 164 addr_space_t); 165 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t); 166 extern rtx default_addr_space_convert (rtx, tree, tree); 167 extern unsigned int default_case_values_threshold (void); 168 extern bool default_have_conditional_execution (void); 169 170 extern bool default_libc_has_function (enum function_class); 171 extern bool no_c99_libc_has_function (enum function_class); 172 extern bool gnu_libc_has_function (enum function_class); 173 174 extern tree default_builtin_tm_load_store (tree); 175 176 extern int default_memory_move_cost (enum machine_mode, reg_class_t, bool); 177 extern int default_register_move_cost (enum machine_mode, reg_class_t, 178 reg_class_t); 179 180 extern bool default_profile_before_prologue (void); 181 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t); 182 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t); 183 extern reg_class_t default_preferred_rename_class (reg_class_t rclass); 184 extern bool default_class_likely_spilled_p (reg_class_t); 185 extern unsigned char default_class_max_nregs (reg_class_t, enum machine_mode); 186 187 extern enum unwind_info_type default_debug_unwind_info (void); 188 189 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool); 190 191 extern int default_label_align_after_barrier_max_skip (rtx); 192 extern int default_loop_align_max_skip (rtx); 193 extern int default_label_align_max_skip (rtx); 194 extern int default_jump_align_max_skip (rtx); 195 extern section * default_function_section(tree decl, enum node_frequency freq, 196 bool startup, bool exit); 197 extern enum machine_mode default_get_reg_raw_mode (int); 198 199 extern void *default_get_pch_validity (size_t *); 200 extern const char *default_pch_valid_p (const void *, size_t); 201 202 extern void default_asm_output_ident_directive (const char*); 203 204 extern enum machine_mode default_cstore_mode (enum insn_code); 205 extern bool default_member_type_forces_blk (const_tree, enum machine_mode); 206 extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *); 207 extern tree build_va_arg_indirect_ref (tree); 208 extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *); 209 extern bool can_use_doloop_if_innermost (double_int, double_int, 210 unsigned int, bool); 211