2018-06-04 Richard Biener <rguenther@suse.de>
[official-gcc.git] / gcc / targhooks.h
blob56951556525e94cfee1838c57d5fc49fe52efa75
1 /* Default target hook functions.
2 Copyright (C) 2003-2018 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
9 version.
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.
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 *,
28 poly_int64, machine_mode);
29 extern bool default_const_not_ok_for_debug_p (rtx);
31 extern int default_unspec_may_trap_p (const_rtx, unsigned);
32 extern machine_mode default_promote_function_mode (const_tree, machine_mode,
33 int *, const_tree, int);
34 extern machine_mode default_promote_function_mode_always_promote
35 (const_tree, machine_mode, int *, const_tree, int);
37 extern machine_mode default_cc_modes_compatible (machine_mode,
38 machine_mode);
40 extern bool default_return_in_memory (const_tree, const_tree);
42 extern rtx default_expand_builtin_saveregs (void);
43 extern void default_setup_incoming_varargs (cumulative_args_t, machine_mode, tree, int *, int);
44 extern rtx default_builtin_setjmp_frame_value (void);
45 extern bool default_pretend_outgoing_varargs_named (cumulative_args_t);
47 extern scalar_int_mode default_eh_return_filter_mode (void);
48 extern scalar_int_mode default_libgcc_cmp_return_mode (void);
49 extern scalar_int_mode default_libgcc_shift_count_mode (void);
50 extern scalar_int_mode default_unwind_word_mode (void);
51 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
52 (machine_mode);
53 extern unsigned int default_min_divisions_for_recip_mul (machine_mode);
54 extern int default_mode_rep_extended (scalar_int_mode, scalar_int_mode);
56 extern tree default_stack_protect_guard (void);
57 extern tree default_external_stack_protect_fail (void);
58 extern tree default_hidden_stack_protect_fail (void);
60 extern machine_mode default_mode_for_suffix (char);
62 extern tree default_cxx_guard_type (void);
63 extern tree default_cxx_get_cookie_size (tree);
65 extern bool hook_pass_by_reference_must_pass_in_stack
66 (cumulative_args_t, machine_mode mode, const_tree, bool);
67 extern bool hook_callee_copies_named
68 (cumulative_args_t ca, machine_mode, const_tree, bool);
70 extern void default_print_operand (FILE *, rtx, int);
71 extern void default_print_operand_address (FILE *, machine_mode, rtx);
72 extern bool default_print_operand_punct_valid_p (unsigned char);
73 extern tree default_mangle_assembler_name (const char *);
75 extern bool default_scalar_mode_supported_p (scalar_mode);
76 extern bool default_libgcc_floating_mode_supported_p (scalar_float_mode);
77 extern opt_scalar_float_mode default_floatn_mode (int, bool);
78 extern bool default_floatn_builtin_p (int);
79 extern bool targhook_words_big_endian (void);
80 extern bool targhook_float_words_big_endian (void);
81 extern bool default_float_exceptions_rounding_supported_p (void);
82 extern bool default_decimal_float_supported_p (void);
83 extern bool default_fixed_point_supported_p (void);
85 extern bool default_has_ifunc_p (void);
87 extern const char * default_invalid_within_doloop (const rtx_insn *);
89 extern tree default_builtin_vectorized_function (unsigned int, tree, tree);
90 extern tree default_builtin_md_vectorized_function (tree, tree, tree);
92 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree);
94 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int);
96 extern tree default_builtin_reciprocal (tree);
98 extern HOST_WIDE_INT default_static_rtx_alignment (machine_mode);
99 extern HOST_WIDE_INT default_constant_alignment (const_tree, HOST_WIDE_INT);
100 extern HOST_WIDE_INT constant_alignment_word_strings (const_tree,
101 HOST_WIDE_INT);
102 extern HOST_WIDE_INT default_vector_alignment (const_tree);
104 extern HOST_WIDE_INT default_preferred_vector_alignment (const_tree);
105 extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
106 extern bool
107 default_builtin_support_vector_misalignment (machine_mode mode,
108 const_tree,
109 int, bool);
110 extern machine_mode default_preferred_simd_mode (scalar_mode mode);
111 extern machine_mode default_split_reduction (machine_mode);
112 extern void default_autovectorize_vector_sizes (vector_sizes *);
113 extern opt_machine_mode default_get_mask_mode (poly_uint64, poly_uint64);
114 extern bool default_empty_mask_is_expensive (unsigned);
115 extern void *default_init_cost (struct loop *);
116 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt,
117 struct _stmt_vec_info *, int,
118 enum vect_cost_model_location);
119 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *);
120 extern void default_destroy_cost_data (void *);
122 /* OpenACC hooks. */
123 extern bool default_goacc_validate_dims (tree, int [], int);
124 extern int default_goacc_dim_limit (int);
125 extern bool default_goacc_fork_join (gcall *, const int [], bool);
126 extern void default_goacc_reduction (gcall *);
128 /* These are here, and not in hooks.[ch], because not all users of
129 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */
131 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t);
132 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t);
134 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
135 (cumulative_args_t, machine_mode, const_tree, bool);
136 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
137 (cumulative_args_t, machine_mode, const_tree, bool);
138 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
139 (cumulative_args_t, machine_mode, tree, bool);
140 extern void hook_void_CUMULATIVE_ARGS_tree
141 (cumulative_args_t, tree);
142 extern const char *hook_invalid_arg_for_unprototyped_fn
143 (const_tree, const_tree, const_tree);
144 extern void default_function_arg_advance
145 (cumulative_args_t, machine_mode, const_tree, bool);
146 extern HOST_WIDE_INT default_function_arg_offset (machine_mode, const_tree);
147 extern pad_direction default_function_arg_padding (machine_mode, const_tree);
148 extern rtx default_function_arg
149 (cumulative_args_t, machine_mode, const_tree, bool);
150 extern rtx default_function_incoming_arg
151 (cumulative_args_t, machine_mode, const_tree, bool);
152 extern unsigned int default_function_arg_boundary (machine_mode,
153 const_tree);
154 extern unsigned int default_function_arg_round_boundary (machine_mode,
155 const_tree);
156 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int);
157 extern rtx default_function_value (const_tree, const_tree, bool);
158 extern rtx default_libcall_value (machine_mode, const_rtx);
159 extern bool default_function_value_regno_p (const unsigned int);
160 extern rtx default_internal_arg_pointer (void);
161 extern rtx default_static_chain (const_tree, bool);
162 extern void default_trampoline_init (rtx, tree, rtx);
163 extern poly_int64 default_return_pops_args (tree, tree, poly_int64);
164 extern reg_class_t default_branch_target_register_class (void);
165 extern reg_class_t default_ira_change_pseudo_allocno_class (int, reg_class_t,
166 reg_class_t);
167 extern bool default_lra_p (void);
168 extern int default_register_priority (int);
169 extern bool default_register_usage_leveling_p (void);
170 extern bool default_different_addr_displacement_p (void);
171 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t,
172 machine_mode,
173 secondary_reload_info *);
174 extern machine_mode default_secondary_memory_needed_mode (machine_mode);
175 extern void default_target_option_override (void);
176 extern void hook_void_bitmap (bitmap);
177 extern int default_reloc_rw_mask (void);
178 extern bool default_generate_pic_addr_diff_vec (void);
179 extern tree default_mangle_decl_assembler_name (tree, tree);
180 extern tree default_emutls_var_fields (tree, tree *);
181 extern tree default_emutls_var_init (tree, tree, tree);
182 extern unsigned int default_hard_regno_nregs (unsigned int, machine_mode);
183 extern bool default_hard_regno_scratch_ok (unsigned int);
184 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t);
185 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int);
186 extern bool default_target_option_pragma_parse (tree, tree);
187 extern bool default_target_can_inline_p (tree, tree);
188 extern bool default_valid_pointer_mode (scalar_int_mode);
189 extern bool default_ref_may_alias_errno (struct ao_ref *);
190 extern scalar_int_mode default_addr_space_pointer_mode (addr_space_t);
191 extern scalar_int_mode default_addr_space_address_mode (addr_space_t);
192 extern bool default_addr_space_valid_pointer_mode (scalar_int_mode,
193 addr_space_t);
194 extern bool default_addr_space_legitimate_address_p (machine_mode, rtx,
195 bool, addr_space_t);
196 extern rtx default_addr_space_legitimize_address (rtx, rtx, machine_mode,
197 addr_space_t);
198 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t);
199 extern bool default_addr_space_zero_address_valid (addr_space_t);
200 extern int default_addr_space_debug (addr_space_t);
201 extern void default_addr_space_diagnose_usage (addr_space_t, location_t);
202 extern rtx default_addr_space_convert (rtx, tree, tree);
203 extern unsigned int default_case_values_threshold (void);
204 extern bool default_have_conditional_execution (void);
206 extern bool default_libc_has_function (enum function_class);
207 extern bool no_c99_libc_has_function (enum function_class);
208 extern bool gnu_libc_has_function (enum function_class);
210 extern tree default_builtin_tm_load_store (tree);
212 extern int default_memory_move_cost (machine_mode, reg_class_t, bool);
213 extern int default_register_move_cost (machine_mode, reg_class_t,
214 reg_class_t);
215 extern bool default_slow_unaligned_access (machine_mode, unsigned int);
216 extern HOST_WIDE_INT default_estimated_poly_value (poly_int64);
218 extern bool default_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT,
219 unsigned int,
220 enum by_pieces_operation,
221 bool);
222 extern int default_compare_by_pieces_branch_ratio (machine_mode);
224 extern void default_print_patchable_function_entry (FILE *,
225 unsigned HOST_WIDE_INT,
226 bool);
227 extern bool default_profile_before_prologue (void);
228 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t);
229 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t);
230 extern reg_class_t default_preferred_rename_class (reg_class_t rclass);
231 extern bool default_class_likely_spilled_p (reg_class_t);
232 extern unsigned char default_class_max_nregs (reg_class_t, machine_mode);
234 extern enum unwind_info_type default_debug_unwind_info (void);
236 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool);
238 extern int default_label_align_after_barrier_max_skip (rtx_insn *);
239 extern int default_loop_align_max_skip (rtx_insn *);
240 extern int default_label_align_max_skip (rtx_insn *);
241 extern int default_jump_align_max_skip (rtx_insn *);
242 extern section * default_function_section(tree decl, enum node_frequency freq,
243 bool startup, bool exit);
244 extern unsigned int default_dwarf_poly_indeterminate_value (unsigned int,
245 unsigned int *,
246 int *);
247 extern machine_mode default_dwarf_frame_reg_mode (int);
248 extern fixed_size_mode default_get_reg_raw_mode (int);
249 extern bool default_keep_leaf_when_profiled ();
251 extern void *default_get_pch_validity (size_t *);
252 extern const char *default_pch_valid_p (const void *, size_t);
254 extern void default_asm_output_ident_directive (const char*);
256 extern scalar_int_mode default_cstore_mode (enum insn_code);
257 extern bool default_member_type_forces_blk (const_tree, machine_mode);
258 extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *);
259 extern tree build_va_arg_indirect_ref (tree);
260 extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
261 extern bool can_use_doloop_if_innermost (const widest_int &,
262 const widest_int &,
263 unsigned int, bool);
265 extern rtx default_load_bounds_for_arg (rtx, rtx, rtx);
266 extern void default_store_bounds_for_arg (rtx, rtx, rtx, rtx);
267 extern rtx default_load_returned_bounds (rtx);
268 extern void default_store_returned_bounds (rtx,rtx);
269 extern tree default_chkp_bound_type (void);
270 extern machine_mode default_chkp_bound_mode (void);
271 extern tree default_builtin_chkp_function (unsigned int);
272 extern rtx default_chkp_function_value_bounds (const_tree, const_tree, bool);
273 extern tree default_chkp_make_bounds_constant (HOST_WIDE_INT lb, HOST_WIDE_INT ub);
274 extern int default_chkp_initialize_bounds (tree var, tree lb, tree ub,
275 tree *stmts);
276 extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED,
277 machine_mode mode ATTRIBUTE_UNUSED,
278 tree type ATTRIBUTE_UNUSED,
279 int *pretend_arg_size ATTRIBUTE_UNUSED,
280 int second_time ATTRIBUTE_UNUSED);
281 extern bool default_optab_supported_p (int, machine_mode, machine_mode,
282 optimization_type);
283 extern unsigned int default_max_noce_ifcvt_seq_cost (edge);
284 extern bool default_noce_conversion_profitable_p (rtx_insn *,
285 struct noce_if_info *);
286 extern unsigned int default_min_arithmetic_precision (void);
288 extern enum flt_eval_method
289 default_excess_precision (enum excess_precision_type ATTRIBUTE_UNUSED);
290 extern bool default_stack_clash_protection_final_dynamic_probe (rtx);
291 extern void default_select_early_remat_modes (sbitmap);
293 #endif /* GCC_TARGHOOKS_H */