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Add one target hook predict_doloop_p, it return true if we can predict it
[thirdparty/gcc.git] / gcc / targhooks.h
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45550790 1/* Default target hook functions.
fbd26352 2 Copyright (C) 2003-2019 Free Software Foundation, Inc.
45550790 3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8c4c00c1 8Software Foundation; either version 3, or (at your option) any later
45550790 9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
8c4c00c1 17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
45550790 19
ce6bb0f3 20#ifndef GCC_TARGHOOKS_H
21#define GCC_TARGHOOKS_H
22
3754d046 23extern bool default_legitimate_address_p (machine_mode, rtx, bool);
fd50b071 24
864af209 25extern void default_external_libcall (rtx);
3754d046 26extern rtx default_legitimize_address (rtx, rtx, machine_mode);
968ba45e 27extern bool default_legitimize_address_displacement (rtx *, rtx *,
6cc181b3 28 poly_int64, machine_mode);
c68c23ab 29extern bool default_const_not_ok_for_debug_p (rtx);
864af209 30
77ad8e5a 31extern int default_unspec_may_trap_p (const_rtx, unsigned);
3754d046 32extern machine_mode default_promote_function_mode (const_tree, machine_mode,
3b2411a8 33 int *, const_tree, int);
3754d046 34extern machine_mode default_promote_function_mode_always_promote
35 (const_tree, machine_mode, int *, const_tree, int);
77ad8e5a 36
3754d046 37extern machine_mode default_cc_modes_compatible (machine_mode,
38 machine_mode);
124ac4e4 39
fb80456a 40extern bool default_return_in_memory (const_tree, const_tree);
45550790 41
42extern rtx default_expand_builtin_saveregs (void);
3754d046 43extern void default_setup_incoming_varargs (cumulative_args_t, machine_mode, tree, int *, int);
e3e026e8 44extern rtx default_builtin_setjmp_frame_value (void);
39cba157 45extern bool default_pretend_outgoing_varargs_named (cumulative_args_t);
4e00ee67 46
f77c4496 47extern scalar_int_mode default_eh_return_filter_mode (void);
48extern scalar_int_mode default_libgcc_cmp_return_mode (void);
49extern scalar_int_mode default_libgcc_shift_count_mode (void);
50extern scalar_int_mode default_unwind_word_mode (void);
c49547c4 51extern unsigned HOST_WIDE_INT default_shift_truncation_mask
3754d046 52 (machine_mode);
53extern unsigned int default_min_divisions_for_recip_mul (machine_mode);
f77c4496 54extern int default_mode_rep_extended (scalar_int_mode, scalar_int_mode);
95215948 55
f1a0edff 56extern tree default_stack_protect_guard (void);
57extern tree default_external_stack_protect_fail (void);
58extern tree default_hidden_stack_protect_fail (void);
59
3754d046 60extern machine_mode default_mode_for_suffix (char);
430be8e2 61
c1dc02de 62extern tree default_cxx_guard_type (void);
600f4be7 63extern tree default_cxx_get_cookie_size (tree);
b981d932 64
b981d932 65extern bool hook_pass_by_reference_must_pass_in_stack
3754d046 66 (cumulative_args_t, machine_mode mode, const_tree, bool);
13f08ee7 67extern bool hook_callee_copies_named
3754d046 68 (cumulative_args_t ca, machine_mode, const_tree, bool);
8ec87476 69
182e98f4 70extern void default_print_operand (FILE *, rtx, int);
3c047fe9 71extern void default_print_operand_address (FILE *, machine_mode, rtx);
182e98f4 72extern bool default_print_operand_punct_valid_p (unsigned char);
d86d364d 73extern tree default_mangle_assembler_name (const char *);
74
93711a35 75extern machine_mode default_translate_mode_attribute (machine_mode);
8aec1ebb 76extern bool default_scalar_mode_supported_p (scalar_mode);
d067137d 77extern bool default_libgcc_floating_mode_supported_p (scalar_float_mode);
a15787d8 78extern opt_scalar_float_mode default_floatn_mode (int, bool);
842a8149 79extern bool default_floatn_builtin_p (int);
183dc110 80extern bool targhook_words_big_endian (void);
81extern bool targhook_float_words_big_endian (void);
4c866b9b 82extern bool default_float_exceptions_rounding_supported_p (void);
1398cbfd 83extern bool default_decimal_float_supported_p (void);
9421ebb9 84extern bool default_fixed_point_supported_p (void);
13f08ee7 85
df9f2e40 86extern bool default_has_ifunc_p (void);
87
82b30d87 88extern bool default_predict_doloop_p (struct loop *);
18282db0 89extern const char * default_invalid_within_doloop (const rtx_insn *);
7dfa5ce3 90
b6c464fe 91extern tree default_builtin_vectorized_function (unsigned int, tree, tree);
92extern tree default_builtin_md_vectorized_function (tree, tree, tree);
22c2f6bd 93
011d9d16 94extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree);
9d8bf4aa 95
0822b158 96extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int);
559093aa 97
4cfd27a5 98extern tree default_builtin_reciprocal (tree);
c3cc39c4 99
1cdbc719 100extern HOST_WIDE_INT default_static_rtx_alignment (machine_mode);
579d67ba 101extern HOST_WIDE_INT default_constant_alignment (const_tree, HOST_WIDE_INT);
102extern HOST_WIDE_INT constant_alignment_word_strings (const_tree,
103 HOST_WIDE_INT);
482a44fa 104extern HOST_WIDE_INT default_vector_alignment (const_tree);
105
e092c20e 106extern poly_uint64 default_preferred_vector_alignment (const_tree);
a9f1838b 107extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
c6b19c5f 108extern bool
3754d046 109default_builtin_support_vector_misalignment (machine_mode mode,
c6b19c5f 110 const_tree,
48e1416a 111 int, bool);
4c1a1be2 112extern machine_mode default_preferred_simd_mode (scalar_mode mode);
41b4a935 113extern machine_mode default_split_reduction (machine_mode);
e7419472 114extern void default_autovectorize_vector_sizes (vector_sizes *, bool);
f5e07737 115extern opt_machine_mode default_get_mask_mode (poly_uint64, poly_uint64);
e75a6670 116extern bool default_empty_mask_is_expensive (unsigned);
4db2b577 117extern void *default_init_cost (struct loop *);
118extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt,
f97dec81 119 struct _stmt_vec_info *, int,
120 enum vect_cost_model_location);
121extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *);
4db2b577 122extern void default_destroy_cost_data (void *);
5a2538e1 123
0bb0f256 124/* OpenACC hooks. */
a2dadbcc 125extern bool default_goacc_validate_dims (tree, int [], int, unsigned);
e1037942 126extern int default_goacc_dim_limit (int);
c25f1934 127extern bool default_goacc_fork_join (gcall *, const int [], bool);
641a0fa1 128extern void default_goacc_reduction (gcall *);
0bb0f256 129
13f08ee7 130/* These are here, and not in hooks.[ch], because not all users of
131 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */
132
39cba157 133extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t);
134extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t);
13f08ee7 135
136extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
3754d046 137 (cumulative_args_t, machine_mode, const_tree, bool);
13f08ee7 138extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
3754d046 139 (cumulative_args_t, machine_mode, const_tree, bool);
f054eb3c 140extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
3754d046 141 (cumulative_args_t, machine_mode, tree, bool);
532d84ff 142extern void hook_void_CUMULATIVE_ARGS_tree
143 (cumulative_args_t, tree);
10fda9eb 144extern const char *hook_invalid_arg_for_unprototyped_fn
a9f1838b 145 (const_tree, const_tree, const_tree);
f387af4f 146extern void default_function_arg_advance
3754d046 147 (cumulative_args_t, machine_mode, const_tree, bool);
8adb95eb 148extern HOST_WIDE_INT default_function_arg_offset (machine_mode, const_tree);
d7ab0e3d 149extern pad_direction default_function_arg_padding (machine_mode, const_tree);
f387af4f 150extern rtx default_function_arg
3754d046 151 (cumulative_args_t, machine_mode, const_tree, bool);
f387af4f 152extern rtx default_function_incoming_arg
3754d046 153 (cumulative_args_t, machine_mode, const_tree, bool);
154extern unsigned int default_function_arg_boundary (machine_mode,
bd99ba64 155 const_tree);
3754d046 156extern unsigned int default_function_arg_round_boundary (machine_mode,
17bfc2bc 157 const_tree);
a9f1838b 158extern bool hook_bool_const_rtx_commutative_p (const_rtx, int);
fb80456a 159extern rtx default_function_value (const_tree, const_tree, bool);
3754d046 160extern rtx default_libcall_value (machine_mode, const_rtx);
e1ce1485 161extern bool default_function_value_regno_p (const unsigned int);
567925e3 162extern rtx default_internal_arg_pointer (void);
82c7907c 163extern rtx default_static_chain (const_tree, bool);
82c7907c 164extern void default_trampoline_init (rtx, tree, rtx);
e0deb08c 165extern poly_int64 default_return_pops_args (tree, tree, poly_int64);
964229b7 166extern reg_class_t default_branch_target_register_class (void);
ef704984 167extern reg_class_t default_ira_change_pseudo_allocno_class (int, reg_class_t,
168 reg_class_t);
c6a6cdaa 169extern bool default_lra_p (void);
170extern int default_register_priority (int);
4a2ca8f3 171extern bool default_register_usage_leveling_p (void);
c6a6cdaa 172extern bool default_different_addr_displacement_p (void);
964229b7 173extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t,
3754d046 174 machine_mode,
964229b7 175 secondary_reload_info *);
1041f930 176extern machine_mode default_secondary_memory_needed_mode (machine_mode);
cc5d3821 177extern void default_target_option_override (void);
fcf2ad9f 178extern void hook_void_bitmap (bitmap);
4e151b05 179extern int default_reloc_rw_mask (void);
a5cb9559 180extern bool default_generate_pic_addr_diff_vec (void);
97a424bc 181extern tree default_mangle_decl_assembler_name (tree, tree);
38475469 182extern tree default_emutls_var_fields (tree, tree *);
183extern tree default_emutls_var_init (tree, tree, tree);
74f68e49 184extern unsigned int default_hard_regno_nregs (unsigned int, machine_mode);
747bf50d 185extern bool default_hard_regno_scratch_ok (unsigned int);
4e27ffd0 186extern bool default_mode_dependent_address_p (const_rtx, addr_space_t);
46f8e3b0 187extern bool default_target_option_valid_attribute_p (tree, tree, tree, int);
24470055 188extern bool default_target_option_pragma_parse (tree, tree);
7c88e513 189extern bool default_target_can_inline_p (tree, tree);
f77c4496 190extern bool default_valid_pointer_mode (scalar_int_mode);
b3e7c666 191extern bool default_ref_may_alias_errno (struct ao_ref *);
f77c4496 192extern scalar_int_mode default_addr_space_pointer_mode (addr_space_t);
193extern scalar_int_mode default_addr_space_address_mode (addr_space_t);
194extern bool default_addr_space_valid_pointer_mode (scalar_int_mode,
98155838 195 addr_space_t);
3754d046 196extern bool default_addr_space_legitimate_address_p (machine_mode, rtx,
bd1a81f7 197 bool, addr_space_t);
3754d046 198extern rtx default_addr_space_legitimize_address (rtx, rtx, machine_mode,
bd1a81f7 199 addr_space_t);
200extern bool default_addr_space_subset_p (addr_space_t, addr_space_t);
9cb89654 201extern bool default_addr_space_zero_address_valid (addr_space_t);
2e7a553a 202extern int default_addr_space_debug (addr_space_t);
a91a5f8a 203extern void default_addr_space_diagnose_usage (addr_space_t, location_t);
bd1a81f7 204extern rtx default_addr_space_convert (rtx, tree, tree);
906bb5c3 205extern unsigned int default_case_values_threshold (void);
751d3ba7 206extern bool default_have_conditional_execution (void);
4c0315d0 207
30f690e0 208extern bool default_libc_has_function (enum function_class);
ff53bc95 209extern bool default_libc_has_fast_function (int fcode);
30f690e0 210extern bool no_c99_libc_has_function (enum function_class);
211extern bool gnu_libc_has_function (enum function_class);
212
4c0315d0 213extern tree default_builtin_tm_load_store (tree);
214
3754d046 215extern int default_memory_move_cost (machine_mode, reg_class_t, bool);
216extern int default_register_move_cost (machine_mode, reg_class_t,
964229b7 217 reg_class_t);
dfdced85 218extern bool default_slow_unaligned_access (machine_mode, unsigned int);
466432a3 219extern HOST_WIDE_INT default_estimated_poly_value (poly_int64);
e6078fbb 220
89da42b6 221extern bool default_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT,
0ec3791c 222 unsigned int,
223 enum by_pieces_operation,
224 bool);
3e346f54 225extern int default_compare_by_pieces_branch_ratio (machine_mode);
0ec3791c 226
e6c4532a 227extern void default_print_patchable_function_entry (FILE *,
228 unsigned HOST_WIDE_INT,
229 bool);
8637d6a2 230extern bool default_profile_before_prologue (void);
09a17585 231extern reg_class_t default_preferred_reload_class (rtx, reg_class_t);
71db0d8b 232extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t);
d78118a3 233extern reg_class_t default_preferred_rename_class (reg_class_t rclass);
24dd0668 234extern bool default_class_likely_spilled_p (reg_class_t);
3754d046 235extern unsigned char default_class_max_nregs (reg_class_t, machine_mode);
cc7d6aed 236
237extern enum unwind_info_type default_debug_unwind_info (void);
ae2b9f1f 238
b7740973 239extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool);
d5065e6e 240
3b73548b 241extern section * default_function_section(tree decl, enum node_frequency freq,
242 bool startup, bool exit);
de41115b 243extern unsigned int default_dwarf_poly_indeterminate_value (unsigned int,
244 unsigned int *,
245 int *);
3754d046 246extern machine_mode default_dwarf_frame_reg_mode (int);
d2401312 247extern fixed_size_mode default_get_reg_raw_mode (int);
d44f2f7c 248extern bool default_keep_leaf_when_profiled ();
4bac51c9 249
0e763b2a 250extern void *default_get_pch_validity (size_t *);
251extern const char *default_pch_valid_p (const void *, size_t);
367b1459 252
253extern void default_asm_output_ident_directive (const char*);
254
7cae74a7 255extern scalar_int_mode default_cstore_mode (enum insn_code);
3754d046 256extern bool default_member_type_forces_blk (const_tree, machine_mode);
b560fabd 257extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *);
b94f16f4 258extern tree build_va_arg_indirect_ref (tree);
259extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
a04a7bec 260extern bool can_use_doloop_if_innermost (const widest_int &,
261 const widest_int &,
262 unsigned int, bool);
ce6bb0f3 263
058a1b7a 264extern rtx default_load_bounds_for_arg (rtx, rtx, rtx);
265extern void default_store_bounds_for_arg (rtx, rtx, rtx, rtx);
266extern rtx default_load_returned_bounds (rtx);
267extern void default_store_returned_bounds (rtx,rtx);
058a1b7a 268extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED,
582adad1 269 machine_mode mode ATTRIBUTE_UNUSED,
058a1b7a 270 tree type ATTRIBUTE_UNUSED,
271 int *pretend_arg_size ATTRIBUTE_UNUSED,
272 int second_time ATTRIBUTE_UNUSED);
acdfe9e0 273extern bool default_optab_supported_p (int, machine_mode, machine_mode,
274 optimization_type);
1019399a 275extern unsigned int default_max_noce_ifcvt_seq_cost (edge);
e000adb9 276extern bool default_noce_conversion_profitable_p (rtx_insn *,
277 struct noce_if_info *);
97574c57 278extern unsigned int default_min_arithmetic_precision (void);
1019399a 279
069d39e6 280extern enum flt_eval_method
281default_excess_precision (enum excess_precision_type ATTRIBUTE_UNUSED);
6b2ca3ef 282extern HOST_WIDE_INT default_stack_clash_protection_alloca_probe_range (void);
62958b22 283extern void default_select_early_remat_modes (sbitmap);
d8483dd1 284extern tree default_preferred_else_value (unsigned, tree, unsigned, tree *);
069d39e6 285
123081ef 286extern bool default_have_speculation_safe_value (bool);
3e3448a9 287extern bool speculation_safe_value_not_needed (bool);
123081ef 288extern rtx default_speculation_safe_value (machine_mode, rtx, rtx, rtx);
76855875 289extern void default_remove_extra_call_preserved_regs (rtx_insn *,
290 HARD_REG_SET *);
123081ef 291
ce6bb0f3 292#endif /* GCC_TARGHOOKS_H */
Mirror of https://gcc.gnu.org/git/gcc.git