1 /* Default target hook functions.
2 Copyright (C) 2003-2014 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);
28 extern int default_unspec_may_trap_p (const_rtx, unsigned);
29 extern machine_mode default_promote_function_mode (const_tree, machine_mode,
30 int *, const_tree, int);
31 extern machine_mode default_promote_function_mode_always_promote
32 (const_tree, machine_mode, int *, const_tree, int);
34 extern machine_mode default_cc_modes_compatible (machine_mode,
37 extern bool default_return_in_memory (const_tree, const_tree);
39 extern rtx default_expand_builtin_saveregs (void);
40 extern void default_setup_incoming_varargs (cumulative_args_t, machine_mode, tree, int *, int);
41 extern rtx default_builtin_setjmp_frame_value (void);
42 extern bool default_pretend_outgoing_varargs_named (cumulative_args_t);
44 extern machine_mode default_eh_return_filter_mode (void);
45 extern machine_mode default_libgcc_cmp_return_mode (void);
46 extern machine_mode default_libgcc_shift_count_mode (void);
47 extern machine_mode default_unwind_word_mode (void);
48 extern unsigned HOST_WIDE_INT default_shift_truncation_mask
50 extern unsigned int default_min_divisions_for_recip_mul (machine_mode);
51 extern int default_mode_rep_extended (machine_mode, machine_mode);
53 extern tree default_stack_protect_guard (void);
54 extern tree default_external_stack_protect_fail (void);
55 extern tree default_hidden_stack_protect_fail (void);
57 extern machine_mode default_mode_for_suffix (char);
59 extern tree default_cxx_guard_type (void);
60 extern tree default_cxx_get_cookie_size (tree);
62 extern bool hook_pass_by_reference_must_pass_in_stack
63 (cumulative_args_t, machine_mode mode, const_tree, bool);
64 extern bool hook_callee_copies_named
65 (cumulative_args_t ca, machine_mode, const_tree, bool);
67 extern void default_print_operand (FILE *, rtx, int);
68 extern void default_print_operand_address (FILE *, rtx);
69 extern bool default_print_operand_punct_valid_p (unsigned char);
70 extern tree default_mangle_assembler_name (const char *);
72 extern bool default_scalar_mode_supported_p (machine_mode);
73 extern bool default_libgcc_floating_mode_supported_p (machine_mode);
74 extern bool targhook_words_big_endian (void);
75 extern bool targhook_float_words_big_endian (void);
76 extern bool default_float_exceptions_rounding_supported_p (void);
77 extern bool default_decimal_float_supported_p (void);
78 extern bool default_fixed_point_supported_p (void);
80 extern bool default_has_ifunc_p (void);
82 extern const char * default_invalid_within_doloop (const rtx_insn *);
84 extern tree default_builtin_vectorized_function (tree, tree, tree);
86 extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree);
88 extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int);
90 extern tree default_builtin_reciprocal (unsigned int, bool, bool);
92 extern HOST_WIDE_INT default_vector_alignment (const_tree);
94 extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
96 default_builtin_support_vector_misalignment (machine_mode mode,
99 extern machine_mode default_preferred_simd_mode (machine_mode mode);
100 extern unsigned int default_autovectorize_vector_sizes (void);
101 extern void *default_init_cost (struct loop *);
102 extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt,
103 struct _stmt_vec_info *, int,
104 enum vect_cost_model_location);
105 extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *);
106 extern void default_destroy_cost_data (void *);
108 /* These are here, and not in hooks.[ch], because not all users of
109 hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */
111 extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t);
112 extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t);
114 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
115 (cumulative_args_t, machine_mode, const_tree, bool);
116 extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
117 (cumulative_args_t, machine_mode, const_tree, bool);
118 extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
119 (cumulative_args_t, machine_mode, tree, bool);
120 extern const char *hook_invalid_arg_for_unprototyped_fn
121 (const_tree, const_tree, const_tree);
122 extern void default_function_arg_advance
123 (cumulative_args_t, machine_mode, const_tree, bool);
124 extern rtx default_function_arg
125 (cumulative_args_t, machine_mode, const_tree, bool);
126 extern rtx default_function_incoming_arg
127 (cumulative_args_t, machine_mode, const_tree, bool);
128 extern unsigned int default_function_arg_boundary (machine_mode,
130 extern unsigned int default_function_arg_round_boundary (machine_mode,
132 extern bool hook_bool_const_rtx_commutative_p (const_rtx, int);
133 extern rtx default_function_value (const_tree, const_tree, bool);
134 extern rtx default_libcall_value (machine_mode, const_rtx);
135 extern bool default_function_value_regno_p (const unsigned int);
136 extern rtx default_internal_arg_pointer (void);
137 extern rtx default_static_chain (const_tree, bool);
138 extern void default_trampoline_init (rtx, tree, rtx);
139 extern int default_return_pops_args (tree, tree, int);
140 extern reg_class_t default_branch_target_register_class (void);
141 extern bool default_lra_p (void);
142 extern int default_register_priority (int);
143 extern bool default_register_usage_leveling_p (void);
144 extern bool default_different_addr_displacement_p (void);
145 extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t,
147 secondary_reload_info *);
148 extern void default_target_option_override (void);
149 extern void hook_void_bitmap (bitmap);
150 extern int default_reloc_rw_mask (void);
151 extern tree default_mangle_decl_assembler_name (tree, tree);
152 extern tree default_emutls_var_fields (tree, tree *);
153 extern tree default_emutls_var_init (tree, tree, tree);
154 extern bool default_hard_regno_scratch_ok (unsigned int);
155 extern bool default_mode_dependent_address_p (const_rtx, addr_space_t);
156 extern bool default_target_option_valid_attribute_p (tree, tree, tree, int);
157 extern bool default_target_option_pragma_parse (tree, tree);
158 extern bool default_target_can_inline_p (tree, tree);
159 extern bool default_valid_pointer_mode (machine_mode);
160 extern bool default_ref_may_alias_errno (struct ao_ref *);
161 extern machine_mode default_addr_space_pointer_mode (addr_space_t);
162 extern machine_mode default_addr_space_address_mode (addr_space_t);
163 extern bool default_addr_space_valid_pointer_mode (machine_mode,
165 extern bool default_addr_space_legitimate_address_p (machine_mode, rtx,
167 extern rtx default_addr_space_legitimize_address (rtx, rtx, machine_mode,
169 extern bool default_addr_space_subset_p (addr_space_t, addr_space_t);
170 extern rtx default_addr_space_convert (rtx, tree, tree);
171 extern unsigned int default_case_values_threshold (void);
172 extern bool default_have_conditional_execution (void);
174 extern bool default_libc_has_function (enum function_class);
175 extern bool no_c99_libc_has_function (enum function_class);
176 extern bool gnu_libc_has_function (enum function_class);
178 extern tree default_builtin_tm_load_store (tree);
180 extern int default_memory_move_cost (machine_mode, reg_class_t, bool);
181 extern int default_register_move_cost (machine_mode, reg_class_t,
184 extern bool default_use_by_pieces_infrastructure_p (unsigned int,
186 enum by_pieces_operation,
189 extern bool default_profile_before_prologue (void);
190 extern reg_class_t default_preferred_reload_class (rtx, reg_class_t);
191 extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t);
192 extern reg_class_t default_preferred_rename_class (reg_class_t rclass);
193 extern bool default_class_likely_spilled_p (reg_class_t);
194 extern unsigned char default_class_max_nregs (reg_class_t, machine_mode);
196 extern enum unwind_info_type default_debug_unwind_info (void);
198 extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool);
200 extern int default_label_align_after_barrier_max_skip (rtx_insn *);
201 extern int default_loop_align_max_skip (rtx_insn *);
202 extern int default_label_align_max_skip (rtx_insn *);
203 extern int default_jump_align_max_skip (rtx_insn *);
204 extern section * default_function_section(tree decl, enum node_frequency freq,
205 bool startup, bool exit);
206 extern machine_mode default_dwarf_frame_reg_mode (int);
207 extern machine_mode default_get_reg_raw_mode (int);
208 extern bool default_keep_leaf_when_profiled ();
210 extern void *default_get_pch_validity (size_t *);
211 extern const char *default_pch_valid_p (const void *, size_t);
213 extern void default_asm_output_ident_directive (const char*);
215 extern machine_mode default_cstore_mode (enum insn_code);
216 extern bool default_member_type_forces_blk (const_tree, machine_mode);
217 extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *);
218 extern tree build_va_arg_indirect_ref (tree);
219 extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
220 extern bool can_use_doloop_if_innermost (const widest_int &,
224 extern rtx default_load_bounds_for_arg (rtx, rtx, rtx);
225 extern void default_store_bounds_for_arg (rtx, rtx, rtx, rtx);
226 extern rtx default_load_returned_bounds (rtx);
227 extern void default_store_returned_bounds (rtx,rtx);
228 extern tree default_chkp_bound_type (void);
229 extern enum machine_mode default_chkp_bound_mode (void);
230 extern tree default_builtin_chkp_function (unsigned int);
231 extern rtx default_chkp_function_value_bounds (const_tree, const_tree, bool);
232 extern tree default_chkp_make_bounds_constant (HOST_WIDE_INT lb, HOST_WIDE_INT ub);
233 extern int default_chkp_initialize_bounds (tree var, tree lb, tree ub,
235 extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED,
236 enum machine_mode mode ATTRIBUTE_UNUSED,
237 tree type ATTRIBUTE_UNUSED,
238 int *pretend_arg_size ATTRIBUTE_UNUSED,
239 int second_time ATTRIBUTE_UNUSED);
240 #endif /* GCC_TARGHOOKS_H */