1 /* Default target hook functions.
2 Copyright (C) 2003-2017 Free Software Foundation, Inc.
4 This file is part of GCC.
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
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
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/>. */
20 #ifndef GCC_TARGHOOKS_H
21 #define GCC_TARGHOOKS_H
23 extern bool default_legitimate_address_p (machine_mode
, rtx
, bool);
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
*,
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);
36 extern machine_mode
default_cc_modes_compatible (machine_mode
,
39 extern bool default_return_in_memory (const_tree
, const_tree
);
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
);
46 extern scalar_int_mode
default_eh_return_filter_mode (void);
47 extern scalar_int_mode
default_libgcc_cmp_return_mode (void);
48 extern scalar_int_mode
default_libgcc_shift_count_mode (void);
49 extern scalar_int_mode
default_unwind_word_mode (void);
50 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
52 extern unsigned int default_min_divisions_for_recip_mul (machine_mode
);
53 extern int default_mode_rep_extended (scalar_int_mode
, scalar_int_mode
);
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);
59 extern machine_mode
default_mode_for_suffix (char);
61 extern tree
default_cxx_guard_type (void);
62 extern tree
default_cxx_get_cookie_size (tree
);
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);
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 *);
74 extern bool default_scalar_mode_supported_p (scalar_mode
);
75 extern bool default_libgcc_floating_mode_supported_p (scalar_float_mode
);
76 extern opt_scalar_float_mode
default_floatn_mode (int, bool);
77 extern bool targhook_words_big_endian (void);
78 extern bool targhook_float_words_big_endian (void);
79 extern bool default_float_exceptions_rounding_supported_p (void);
80 extern bool default_decimal_float_supported_p (void);
81 extern bool default_fixed_point_supported_p (void);
83 extern bool default_has_ifunc_p (void);
85 extern const char * default_invalid_within_doloop (const rtx_insn
*);
87 extern tree
default_builtin_vectorized_function (unsigned int, tree
, tree
);
88 extern tree
default_builtin_md_vectorized_function (tree
, tree
, tree
);
90 extern tree
default_builtin_vectorized_conversion (unsigned int, tree
, tree
);
92 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt
, tree
, int);
94 extern tree
default_builtin_reciprocal (tree
);
96 extern HOST_WIDE_INT
default_constant_alignment (const_tree
, HOST_WIDE_INT
);
97 extern HOST_WIDE_INT
constant_alignment_word_strings (const_tree
,
99 extern HOST_WIDE_INT
default_vector_alignment (const_tree
);
101 extern HOST_WIDE_INT
default_preferred_vector_alignment (const_tree
);
102 extern bool default_builtin_vector_alignment_reachable (const_tree
, bool);
104 default_builtin_support_vector_misalignment (machine_mode mode
,
107 extern machine_mode
default_preferred_simd_mode (scalar_mode mode
);
108 extern unsigned int default_autovectorize_vector_sizes (void);
109 extern opt_machine_mode
default_get_mask_mode (unsigned, unsigned);
110 extern void *default_init_cost (struct loop
*);
111 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt
,
112 struct _stmt_vec_info
*, int,
113 enum vect_cost_model_location
);
114 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *);
115 extern void default_destroy_cost_data (void *);
118 extern bool default_goacc_validate_dims (tree
, int [], int);
119 extern int default_goacc_dim_limit (int);
120 extern bool default_goacc_fork_join (gcall
*, const int [], bool);
121 extern void default_goacc_reduction (gcall
*);
123 /* These are here, and not in hooks.[ch], because not all users of
124 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */
126 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t
);
127 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t
);
129 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
130 (cumulative_args_t
, machine_mode
, const_tree
, bool);
131 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
132 (cumulative_args_t
, machine_mode
, const_tree
, bool);
133 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
134 (cumulative_args_t
, machine_mode
, tree
, bool);
135 extern const char *hook_invalid_arg_for_unprototyped_fn
136 (const_tree
, const_tree
, const_tree
);
137 extern void default_function_arg_advance
138 (cumulative_args_t
, machine_mode
, const_tree
, bool);
139 extern HOST_WIDE_INT
default_function_arg_offset (machine_mode
, const_tree
);
140 extern pad_direction
default_function_arg_padding (machine_mode
, const_tree
);
141 extern rtx default_function_arg
142 (cumulative_args_t
, machine_mode
, const_tree
, bool);
143 extern rtx default_function_incoming_arg
144 (cumulative_args_t
, machine_mode
, const_tree
, bool);
145 extern unsigned int default_function_arg_boundary (machine_mode
,
147 extern unsigned int default_function_arg_round_boundary (machine_mode
,
149 extern bool hook_bool_const_rtx_commutative_p (const_rtx
, int);
150 extern rtx
default_function_value (const_tree
, const_tree
, bool);
151 extern rtx
default_libcall_value (machine_mode
, const_rtx
);
152 extern bool default_function_value_regno_p (const unsigned int);
153 extern rtx
default_internal_arg_pointer (void);
154 extern rtx
default_static_chain (const_tree
, bool);
155 extern void default_trampoline_init (rtx
, tree
, rtx
);
156 extern int default_return_pops_args (tree
, tree
, int);
157 extern reg_class_t
default_branch_target_register_class (void);
158 extern reg_class_t
default_ira_change_pseudo_allocno_class (int, reg_class_t
,
160 extern bool default_lra_p (void);
161 extern int default_register_priority (int);
162 extern bool default_register_usage_leveling_p (void);
163 extern bool default_different_addr_displacement_p (void);
164 extern reg_class_t
default_secondary_reload (bool, rtx
, reg_class_t
,
166 secondary_reload_info
*);
167 extern machine_mode
default_secondary_memory_needed_mode (machine_mode
);
168 extern void default_target_option_override (void);
169 extern void hook_void_bitmap (bitmap
);
170 extern int default_reloc_rw_mask (void);
171 extern tree
default_mangle_decl_assembler_name (tree
, tree
);
172 extern tree
default_emutls_var_fields (tree
, tree
*);
173 extern tree
default_emutls_var_init (tree
, tree
, tree
);
174 extern unsigned int default_hard_regno_nregs (unsigned int, machine_mode
);
175 extern bool default_hard_regno_scratch_ok (unsigned int);
176 extern bool default_mode_dependent_address_p (const_rtx
, addr_space_t
);
177 extern bool default_target_option_valid_attribute_p (tree
, tree
, tree
, int);
178 extern bool default_target_option_pragma_parse (tree
, tree
);
179 extern bool default_target_can_inline_p (tree
, tree
);
180 extern bool default_valid_pointer_mode (scalar_int_mode
);
181 extern bool default_ref_may_alias_errno (struct ao_ref
*);
182 extern scalar_int_mode
default_addr_space_pointer_mode (addr_space_t
);
183 extern scalar_int_mode
default_addr_space_address_mode (addr_space_t
);
184 extern bool default_addr_space_valid_pointer_mode (scalar_int_mode
,
186 extern bool default_addr_space_legitimate_address_p (machine_mode
, rtx
,
188 extern rtx
default_addr_space_legitimize_address (rtx
, rtx
, machine_mode
,
190 extern bool default_addr_space_subset_p (addr_space_t
, addr_space_t
);
191 extern bool default_addr_space_zero_address_valid (addr_space_t
);
192 extern int default_addr_space_debug (addr_space_t
);
193 extern void default_addr_space_diagnose_usage (addr_space_t
, location_t
);
194 extern rtx
default_addr_space_convert (rtx
, tree
, tree
);
195 extern unsigned int default_case_values_threshold (void);
196 extern bool default_have_conditional_execution (void);
198 extern bool default_libc_has_function (enum function_class
);
199 extern bool no_c99_libc_has_function (enum function_class
);
200 extern bool gnu_libc_has_function (enum function_class
);
202 extern tree
default_builtin_tm_load_store (tree
);
204 extern int default_memory_move_cost (machine_mode
, reg_class_t
, bool);
205 extern int default_register_move_cost (machine_mode
, reg_class_t
,
207 extern bool default_slow_unaligned_access (machine_mode
, unsigned int);
209 extern bool default_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT
,
211 enum by_pieces_operation
,
213 extern int default_compare_by_pieces_branch_ratio (machine_mode
);
215 extern void default_print_patchable_function_entry (FILE *,
216 unsigned HOST_WIDE_INT
,
218 extern bool default_profile_before_prologue (void);
219 extern reg_class_t
default_preferred_reload_class (rtx
, reg_class_t
);
220 extern reg_class_t
default_preferred_output_reload_class (rtx
, reg_class_t
);
221 extern reg_class_t
default_preferred_rename_class (reg_class_t rclass
);
222 extern bool default_class_likely_spilled_p (reg_class_t
);
223 extern unsigned char default_class_max_nregs (reg_class_t
, machine_mode
);
225 extern enum unwind_info_type
default_debug_unwind_info (void);
227 extern void default_canonicalize_comparison (int *, rtx
*, rtx
*, bool);
229 extern int default_label_align_after_barrier_max_skip (rtx_insn
*);
230 extern int default_loop_align_max_skip (rtx_insn
*);
231 extern int default_label_align_max_skip (rtx_insn
*);
232 extern int default_jump_align_max_skip (rtx_insn
*);
233 extern section
* default_function_section(tree decl
, enum node_frequency freq
,
234 bool startup
, bool exit
);
235 extern machine_mode
default_dwarf_frame_reg_mode (int);
236 extern machine_mode
default_get_reg_raw_mode (int);
237 extern bool default_keep_leaf_when_profiled ();
239 extern void *default_get_pch_validity (size_t *);
240 extern const char *default_pch_valid_p (const void *, size_t);
242 extern void default_asm_output_ident_directive (const char*);
244 extern scalar_int_mode
default_cstore_mode (enum insn_code
);
245 extern bool default_member_type_forces_blk (const_tree
, machine_mode
);
246 extern void default_atomic_assign_expand_fenv (tree
*, tree
*, tree
*);
247 extern tree
build_va_arg_indirect_ref (tree
);
248 extern tree
std_gimplify_va_arg_expr (tree
, tree
, gimple_seq
*, gimple_seq
*);
249 extern bool can_use_doloop_if_innermost (const widest_int
&,
253 extern rtx
default_load_bounds_for_arg (rtx
, rtx
, rtx
);
254 extern void default_store_bounds_for_arg (rtx
, rtx
, rtx
, rtx
);
255 extern rtx
default_load_returned_bounds (rtx
);
256 extern void default_store_returned_bounds (rtx
,rtx
);
257 extern tree
default_chkp_bound_type (void);
258 extern machine_mode
default_chkp_bound_mode (void);
259 extern tree
default_builtin_chkp_function (unsigned int);
260 extern rtx
default_chkp_function_value_bounds (const_tree
, const_tree
, bool);
261 extern tree
default_chkp_make_bounds_constant (HOST_WIDE_INT lb
, HOST_WIDE_INT ub
);
262 extern int default_chkp_initialize_bounds (tree var
, tree lb
, tree ub
,
264 extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED
,
265 machine_mode mode ATTRIBUTE_UNUSED
,
266 tree type ATTRIBUTE_UNUSED
,
267 int *pretend_arg_size ATTRIBUTE_UNUSED
,
268 int second_time ATTRIBUTE_UNUSED
);
269 extern bool default_optab_supported_p (int, machine_mode
, machine_mode
,
271 extern unsigned int default_max_noce_ifcvt_seq_cost (edge
);
272 extern bool default_noce_conversion_profitable_p (rtx_insn
*,
273 struct noce_if_info
*);
274 extern unsigned int default_min_arithmetic_precision (void);
276 extern enum flt_eval_method
277 default_excess_precision (enum excess_precision_type ATTRIBUTE_UNUSED
);
278 extern bool default_stack_clash_protection_final_dynamic_probe (rtx
);
280 #endif /* GCC_TARGHOOKS_H */