1 /* Default target hook functions. 2 Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 3 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 extern bool default_legitimate_address_p (enum machine_mode, rtx, bool); 22 23 extern void default_external_libcall (rtx); 24 extern rtx default_legitimize_address (rtx, rtx, enum machine_mode); 25 26 extern int default_unspec_may_trap_p (const_rtx, unsigned); 27 extern enum machine_mode default_promote_function_mode (const_tree, enum machine_mode, 28 int *, const_tree, int); 29 extern enum machine_mode default_promote_function_mode_always_promote 30 (const_tree, enum machine_mode, int *, const_tree, int); 31 32 extern enum machine_mode default_cc_modes_compatible (enum machine_mode, 33 enum machine_mode); 34 35 extern bool default_return_in_memory (const_tree, const_tree); 36 37 extern rtx default_expand_builtin_saveregs (void); 38 extern void default_setup_incoming_varargs (cumulative_args_t, enum machine_mode, tree, int *, int); 39 extern rtx default_builtin_setjmp_frame_value (void); 40 extern bool default_pretend_outgoing_varargs_named (cumulative_args_t); 41 42 extern enum machine_mode default_eh_return_filter_mode (void); 43 extern enum machine_mode default_libgcc_cmp_return_mode (void); 44 extern enum machine_mode default_libgcc_shift_count_mode (void); 45 extern enum machine_mode default_unwind_word_mode (void); 46 extern unsigned HOST_WIDE_INT default_shift_truncation_mask 47 (enum machine_mode); 48 extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode); 49 extern int default_mode_rep_extended (enum machine_mode, enum machine_mode); 50 51 extern tree default_stack_protect_guard (void); 52 extern tree default_external_stack_protect_fail (void); 53 extern tree default_hidden_stack_protect_fail (void); 54 55 extern enum machine_mode default_mode_for_suffix (char); 56 57 extern tree default_cxx_guard_type (void); 58 extern tree default_cxx_get_cookie_size (tree); 59 60 extern bool hook_pass_by_reference_must_pass_in_stack 61 (cumulative_args_t, enum machine_mode mode, const_tree, bool); 62 extern bool hook_callee_copies_named 63 (cumulative_args_t ca, enum machine_mode, const_tree, bool); 64 65 extern void default_print_operand (FILE *, rtx, int); 66 extern void default_print_operand_address (FILE *, rtx); 67 extern bool default_print_operand_punct_valid_p (unsigned char); 68 extern tree default_mangle_assembler_name (const char *); 69 70 extern bool default_scalar_mode_supported_p (enum machine_mode); 71 extern bool targhook_words_big_endian (void); 72 extern bool targhook_float_words_big_endian (void); 73 extern bool default_decimal_float_supported_p (void); 74 extern bool default_fixed_point_supported_p (void); 75 76 extern const char * default_invalid_within_doloop (const_rtx); 77 78 extern tree default_builtin_vectorized_function (tree, tree, tree); 79 80 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree); 81 82 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int); 83 84 extern tree default_builtin_reciprocal (unsigned int, bool, bool); 85 86 extern HOST_WIDE_INT default_vector_alignment (const_tree); 87 88 extern bool default_builtin_vector_alignment_reachable (const_tree, bool); 89 extern bool 90 default_builtin_support_vector_misalignment (enum machine_mode mode, 91 const_tree, 92 int, bool); 93 extern enum machine_mode default_preferred_simd_mode (enum machine_mode mode); 94 extern unsigned int default_autovectorize_vector_sizes (void); 95 96 /* These are here, and not in hooks.[ch], because not all users of 97 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */ 98 99 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t); 100 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t); 101 102 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false 103 (cumulative_args_t, enum machine_mode, const_tree, bool); 104 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true 105 (cumulative_args_t, enum machine_mode, const_tree, bool); 106 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 107 (cumulative_args_t, enum machine_mode, tree, bool); 108 extern const char *hook_invalid_arg_for_unprototyped_fn 109 (const_tree, const_tree, const_tree); 110 extern void default_function_arg_advance 111 (cumulative_args_t, enum machine_mode, const_tree, bool); 112 extern rtx default_function_arg 113 (cumulative_args_t, enum machine_mode, const_tree, bool); 114 extern rtx default_function_incoming_arg 115 (cumulative_args_t, enum machine_mode, const_tree, bool); 116 extern unsigned int default_function_arg_boundary (enum machine_mode, 117 const_tree); 118 extern unsigned int default_function_arg_round_boundary (enum machine_mode, 119 const_tree); 120 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int); 121 extern rtx default_function_value (const_tree, const_tree, bool); 122 extern rtx default_libcall_value (enum machine_mode, const_rtx); 123 extern bool default_function_value_regno_p (const unsigned int); 124 extern rtx default_internal_arg_pointer (void); 125 extern rtx default_static_chain (const_tree, bool); 126 extern void default_trampoline_init (rtx, tree, rtx); 127 extern int default_return_pops_args (tree, tree, int); 128 extern reg_class_t default_branch_target_register_class (void); 129 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t, 130 enum machine_mode, 131 secondary_reload_info *); 132 extern void default_target_option_override (void); 133 extern void hook_void_bitmap (bitmap); 134 extern int default_reloc_rw_mask (void); 135 extern tree default_mangle_decl_assembler_name (tree, tree); 136 extern tree default_emutls_var_fields (tree, tree *); 137 extern tree default_emutls_var_init (tree, tree, tree); 138 extern bool default_hard_regno_scratch_ok (unsigned int); 139 extern bool default_mode_dependent_address_p (const_rtx addr); 140 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int); 141 extern bool default_target_option_pragma_parse (tree, tree); 142 extern bool default_target_can_inline_p (tree, tree); 143 extern bool default_valid_pointer_mode (enum machine_mode); 144 extern bool default_ref_may_alias_errno (struct ao_ref_s *); 145 extern enum machine_mode default_addr_space_pointer_mode (addr_space_t); 146 extern enum machine_mode default_addr_space_address_mode (addr_space_t); 147 extern bool default_addr_space_valid_pointer_mode (enum machine_mode, 148 addr_space_t); 149 extern bool default_addr_space_legitimate_address_p (enum machine_mode, rtx, 150 bool, addr_space_t); 151 extern rtx default_addr_space_legitimize_address (rtx, rtx, enum machine_mode, 152 addr_space_t); 153 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t); 154 extern rtx default_addr_space_convert (rtx, tree, tree); 155 extern unsigned int default_case_values_threshold (void); 156 extern bool default_have_conditional_execution (void); 157 158 extern tree default_builtin_tm_load_store (tree); 159 160 extern int default_memory_move_cost (enum machine_mode, reg_class_t, bool); 161 extern int default_register_move_cost (enum machine_mode, reg_class_t, 162 reg_class_t); 163 164 extern bool default_profile_before_prologue (void); 165 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t); 166 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t); 167 extern reg_class_t default_preferred_rename_class (reg_class_t rclass); 168 extern bool default_class_likely_spilled_p (reg_class_t); 169 extern unsigned char default_class_max_nregs (reg_class_t, enum machine_mode); 170 171 extern enum unwind_info_type default_debug_unwind_info (void); 172 173 extern int default_label_align_after_barrier_max_skip (rtx); 174 extern int default_loop_align_max_skip (rtx); 175 extern int default_label_align_max_skip (rtx); 176 extern int default_jump_align_max_skip (rtx); 177 extern section * default_function_section(tree decl, enum node_frequency freq, 178 bool startup, bool exit); 179 extern enum machine_mode default_get_reg_raw_mode(int); 180 181 extern void *default_get_pch_validity (size_t *); 182 extern const char *default_pch_valid_p (const void *, size_t); 183