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/* Default target hook functions.
Copyright (C) 2003-2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
extern bool default_legitimate_address_p (enum machine_mode, rtx, bool);
extern void default_external_libcall (rtx);
extern rtx default_legitimize_address (rtx, rtx, enum machine_mode);
extern int default_unspec_may_trap_p (const_rtx, unsigned);
extern enum machine_mode default_promote_function_mode (const_tree, enum machine_mode,
int *, const_tree, int);
extern enum machine_mode default_promote_function_mode_always_promote
(const_tree, enum machine_mode, int *, const_tree, int);
extern enum machine_mode default_cc_modes_compatible (enum machine_mode,
enum machine_mode);
extern bool default_return_in_memory (const_tree, const_tree);
extern rtx default_expand_builtin_saveregs (void);
extern void default_setup_incoming_varargs (cumulative_args_t, enum machine_mode, tree, int *, int);
extern rtx default_builtin_setjmp_frame_value (void);
extern bool default_pretend_outgoing_varargs_named (cumulative_args_t);
extern enum machine_mode default_eh_return_filter_mode (void);
extern enum machine_mode default_libgcc_cmp_return_mode (void);
extern enum machine_mode default_libgcc_shift_count_mode (void);
extern enum machine_mode default_unwind_word_mode (void);
extern unsigned HOST_WIDE_INT default_shift_truncation_mask
(enum machine_mode);
extern unsigned int default_min_divisions_for_recip_mul (enum machine_mode);
extern int default_mode_rep_extended (enum machine_mode, enum machine_mode);
extern tree default_stack_protect_guard (void);
extern tree default_external_stack_protect_fail (void);
extern tree default_hidden_stack_protect_fail (void);
extern enum machine_mode default_mode_for_suffix (char);
extern tree default_cxx_guard_type (void);
extern tree default_cxx_get_cookie_size (tree);
extern bool hook_pass_by_reference_must_pass_in_stack
(cumulative_args_t, enum machine_mode mode, const_tree, bool);
extern bool hook_callee_copies_named
(cumulative_args_t ca, enum machine_mode, const_tree, bool);
extern void default_print_operand (FILE *, rtx, int);
extern void default_print_operand_address (FILE *, rtx);
extern bool default_print_operand_punct_valid_p (unsigned char);
extern tree default_mangle_assembler_name (const char *);
extern bool default_scalar_mode_supported_p (enum machine_mode);
extern bool targhook_words_big_endian (void);
extern bool targhook_float_words_big_endian (void);
extern bool default_float_exceptions_rounding_supported_p (void);
extern bool default_decimal_float_supported_p (void);
extern bool default_fixed_point_supported_p (void);
extern bool default_has_ifunc_p (void);
extern const char * default_invalid_within_doloop (const rtx_insn *);
extern tree default_builtin_vectorized_function (tree, tree, tree);
extern tree default_builtin_vectorized_conversion (unsigned int, tree, tree);
extern int default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int);
extern tree default_builtin_reciprocal (unsigned int, bool, bool);
extern HOST_WIDE_INT default_vector_alignment (const_tree);
extern bool default_builtin_vector_alignment_reachable (const_tree, bool);
extern bool
default_builtin_support_vector_misalignment (enum machine_mode mode,
const_tree,
int, bool);
extern enum machine_mode default_preferred_simd_mode (enum machine_mode mode);
extern unsigned int default_autovectorize_vector_sizes (void);
extern void *default_init_cost (struct loop *);
extern unsigned default_add_stmt_cost (void *, int, enum vect_cost_for_stmt,
struct _stmt_vec_info *, int,
enum vect_cost_model_location);
extern void default_finish_cost (void *, unsigned *, unsigned *, unsigned *);
extern void default_destroy_cost_data (void *);
/* These are here, and not in hooks.[ch], because not all users of
hooks.h include tm.h, and thus we don't have CUMULATIVE_ARGS. */
extern bool hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t);
extern bool hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t);
extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false
(cumulative_args_t, enum machine_mode, const_tree, bool);
extern bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
(cumulative_args_t, enum machine_mode, const_tree, bool);
extern int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0
(cumulative_args_t, enum machine_mode, tree, bool);
extern const char *hook_invalid_arg_for_unprototyped_fn
(const_tree, const_tree, const_tree);
extern void default_function_arg_advance
(cumulative_args_t, enum machine_mode, const_tree, bool);
extern rtx default_function_arg
(cumulative_args_t, enum machine_mode, const_tree, bool);
extern rtx default_function_incoming_arg
(cumulative_args_t, enum machine_mode, const_tree, bool);
extern unsigned int default_function_arg_boundary (enum machine_mode,
const_tree);
extern unsigned int default_function_arg_round_boundary (enum machine_mode,
const_tree);
extern bool hook_bool_const_rtx_commutative_p (const_rtx, int);
extern rtx default_function_value (const_tree, const_tree, bool);
extern rtx default_libcall_value (enum machine_mode, const_rtx);
extern bool default_function_value_regno_p (const unsigned int);
extern rtx default_internal_arg_pointer (void);
extern rtx default_static_chain (const_tree, bool);
extern void default_trampoline_init (rtx, tree, rtx);
extern int default_return_pops_args (tree, tree, int);
extern reg_class_t default_branch_target_register_class (void);
extern bool default_lra_p (void);
extern int default_register_priority (int);
extern bool default_register_usage_leveling_p (void);
extern bool default_different_addr_displacement_p (void);
extern reg_class_t default_secondary_reload (bool, rtx, reg_class_t,
enum machine_mode,
secondary_reload_info *);
extern void default_target_option_override (void);
extern void hook_void_bitmap (bitmap);
extern int default_reloc_rw_mask (void);
extern tree default_mangle_decl_assembler_name (tree, tree);
extern tree default_emutls_var_fields (tree, tree *);
extern tree default_emutls_var_init (tree, tree, tree);
extern bool default_hard_regno_scratch_ok (unsigned int);
extern bool default_mode_dependent_address_p (const_rtx, addr_space_t);
extern bool default_target_option_valid_attribute_p (tree, tree, tree, int);
extern bool default_target_option_pragma_parse (tree, tree);
extern bool default_target_can_inline_p (tree, tree);
extern bool default_valid_pointer_mode (enum machine_mode);
extern bool default_ref_may_alias_errno (struct ao_ref *);
extern enum machine_mode default_addr_space_pointer_mode (addr_space_t);
extern enum machine_mode default_addr_space_address_mode (addr_space_t);
extern bool default_addr_space_valid_pointer_mode (enum machine_mode,
addr_space_t);
extern bool default_addr_space_legitimate_address_p (enum machine_mode, rtx,
bool, addr_space_t);
extern rtx default_addr_space_legitimize_address (rtx, rtx, enum machine_mode,
addr_space_t);
extern bool default_addr_space_subset_p (addr_space_t, addr_space_t);
extern rtx default_addr_space_convert (rtx, tree, tree);
extern unsigned int default_case_values_threshold (void);
extern bool default_have_conditional_execution (void);
extern bool default_libc_has_function (enum function_class);
extern bool no_c99_libc_has_function (enum function_class);
extern bool gnu_libc_has_function (enum function_class);
extern tree default_builtin_tm_load_store (tree);
extern int default_memory_move_cost (enum machine_mode, reg_class_t, bool);
extern int default_register_move_cost (enum machine_mode, reg_class_t,
reg_class_t);
extern bool default_profile_before_prologue (void);
extern reg_class_t default_preferred_reload_class (rtx, reg_class_t);
extern reg_class_t default_preferred_output_reload_class (rtx, reg_class_t);
extern reg_class_t default_preferred_rename_class (reg_class_t rclass);
extern bool default_class_likely_spilled_p (reg_class_t);
extern unsigned char default_class_max_nregs (reg_class_t, enum machine_mode);
extern enum unwind_info_type default_debug_unwind_info (void);
extern void default_canonicalize_comparison (int *, rtx *, rtx *, bool);
extern int default_label_align_after_barrier_max_skip (rtx);
extern int default_loop_align_max_skip (rtx);
extern int default_label_align_max_skip (rtx);
extern int default_jump_align_max_skip (rtx);
extern section * default_function_section(tree decl, enum node_frequency freq,
bool startup, bool exit);
extern enum machine_mode default_dwarf_frame_reg_mode (int);
extern enum machine_mode default_get_reg_raw_mode (int);
extern bool default_keep_leaf_when_profiled ();
extern void *default_get_pch_validity (size_t *);
extern const char *default_pch_valid_p (const void *, size_t);
extern void default_asm_output_ident_directive (const char*);
extern enum machine_mode default_cstore_mode (enum insn_code);
extern bool default_member_type_forces_blk (const_tree, enum machine_mode);
extern void default_atomic_assign_expand_fenv (tree *, tree *, tree *);
extern tree build_va_arg_indirect_ref (tree);
extern tree std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
extern bool can_use_doloop_if_innermost (const widest_int &,
const widest_int &,
unsigned int, bool);
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