targhooks.h File Reference

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Functions
bool	default_legitimate_address_p (machine_mode, rtx, bool, code_helper)
void	default_external_libcall (rtx)
rtx	default_legitimize_address (rtx, rtx, machine_mode)
bool	default_legitimize_address_displacement (rtx *, rtx *, poly_int64, machine_mode)
bool	default_const_not_ok_for_debug_p (rtx)
int	default_unspec_may_trap_p (const_rtx, unsigned)
machine_mode	default_promote_function_mode (const_tree, machine_mode, int *, const_tree, int)
machine_mode	default_promote_function_mode_always_promote (const_tree, machine_mode, int *, const_tree, int)
machine_mode	default_cc_modes_compatible (machine_mode, machine_mode)
bool	default_return_in_memory (const_tree, const_tree)
rtx	default_expand_builtin_saveregs (void)
void	default_setup_incoming_varargs (cumulative_args_t, const function_arg_info &, int *, int)
rtx	default_builtin_setjmp_frame_value (void)
bool	default_pretend_outgoing_varargs_named (cumulative_args_t)
scalar_int_mode	default_eh_return_filter_mode (void)
scalar_int_mode	default_libgcc_cmp_return_mode (void)
scalar_int_mode	default_libgcc_shift_count_mode (void)
scalar_int_mode	default_unwind_word_mode (void)
unsigned HOST_WIDE_INT	default_shift_truncation_mask (machine_mode)
unsigned int	default_min_divisions_for_recip_mul (machine_mode)
bool	default_preferred_div_as_shifts_over_mult (const_tree)
int	default_mode_rep_extended (scalar_int_mode, scalar_int_mode)
tree	default_stack_protect_guard (void)
tree	default_external_stack_protect_fail (void)
tree	default_hidden_stack_protect_fail (void)
machine_mode	default_mode_for_suffix (char)
tree	default_cxx_guard_type (void)
tree	default_cxx_get_cookie_size (tree)
tree	default_cxx_adjust_cdtor_callabi_fntype (tree)
bool	hook_pass_by_reference_must_pass_in_stack (cumulative_args_t, const function_arg_info &)
bool	hook_callee_copies_named (cumulative_args_t ca, const function_arg_info &)
void	default_print_operand (FILE *, rtx, int)
void	default_print_operand_address (FILE *, machine_mode, rtx)
bool	default_print_operand_punct_valid_p (unsigned char)
tree	default_mangle_assembler_name (const char *)
machine_mode	default_translate_mode_attribute (machine_mode)
bool	default_scalar_mode_supported_p (scalar_mode)
bool	default_libgcc_floating_mode_supported_p (scalar_float_mode)
opt_scalar_float_mode	default_floatn_mode (int, bool)
bool	default_floatn_builtin_p (int)
bool	targhook_words_big_endian (void)
bool	targhook_float_words_big_endian (void)
bool	default_float_exceptions_rounding_supported_p (void)
bool	default_decimal_float_supported_p (void)
bool	default_fixed_point_supported_p (void)
bool	default_has_ifunc_p (void)
bool	default_predict_doloop_p (class loop *)
machine_mode	default_preferred_doloop_mode (machine_mode)
const char *	default_invalid_within_doloop (const rtx_insn *)
tree	default_builtin_vectorized_function (unsigned int, tree, tree)
tree	default_builtin_md_vectorized_function (tree, tree, tree)
int	default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int)
tree	default_builtin_reciprocal (tree)
void	default_emit_support_tinfos (emit_support_tinfos_callback)
HOST_WIDE_INT	default_static_rtx_alignment (machine_mode)
HOST_WIDE_INT	default_constant_alignment (const_tree, HOST_WIDE_INT)
HOST_WIDE_INT	constant_alignment_word_strings (const_tree, HOST_WIDE_INT)
HOST_WIDE_INT	default_vector_alignment (const_tree)
poly_uint64	default_preferred_vector_alignment (const_tree)
bool	default_builtin_vector_alignment_reachable (const_tree, bool)
bool	default_builtin_support_vector_misalignment (machine_mode mode, const_tree, int, bool)
machine_mode	default_preferred_simd_mode (scalar_mode mode)
machine_mode	default_split_reduction (machine_mode)
unsigned int	default_autovectorize_vector_modes (vector_modes *, bool)
opt_machine_mode	default_vectorize_related_mode (machine_mode, scalar_mode, poly_uint64)
opt_machine_mode	default_get_mask_mode (machine_mode)
bool	default_empty_mask_is_expensive (unsigned)
bool	default_conditional_operation_is_expensive (unsigned)
vector_costs *	default_vectorize_create_costs (vec_info *, bool)
bool	default_goacc_validate_dims (tree, int[], int, unsigned)
int	default_goacc_dim_limit (int)
bool	default_goacc_fork_join (gcall *, const int[], bool)
void	default_goacc_reduction (gcall *)
bool	hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t)
bool	hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t)
bool	hook_bool_CUMULATIVE_ARGS_arg_info_false (cumulative_args_t, const function_arg_info &)
bool	hook_bool_CUMULATIVE_ARGS_arg_info_true (cumulative_args_t, const function_arg_info &)
int	hook_int_CUMULATIVE_ARGS_arg_info_0 (cumulative_args_t, const function_arg_info &)
void	hook_void_CUMULATIVE_ARGS (cumulative_args_t)
void	hook_void_CUMULATIVE_ARGS_tree (cumulative_args_t, tree)
void	hook_void_CUMULATIVE_ARGS_rtx_tree (cumulative_args_t, rtx, tree)
const char *	hook_invalid_arg_for_unprototyped_fn (const_tree, const_tree, const_tree)
void	default_function_arg_advance (cumulative_args_t, const function_arg_info &)
bool	default_push_argument (unsigned int)
HOST_WIDE_INT	default_function_arg_offset (machine_mode, const_tree)
pad_direction	default_function_arg_padding (machine_mode, const_tree)
rtx	default_function_arg (cumulative_args_t, const function_arg_info &)
rtx	default_function_incoming_arg (cumulative_args_t, const function_arg_info &)
unsigned int	default_function_arg_boundary (machine_mode, const_tree)
unsigned int	default_function_arg_round_boundary (machine_mode, const_tree)
bool	hook_bool_const_rtx_commutative_p (const_rtx, int)
rtx	default_function_value (const_tree, const_tree, bool)
HARD_REG_SET	default_zero_call_used_regs (HARD_REG_SET)
rtx	default_libcall_value (machine_mode, const_rtx)
bool	default_function_value_regno_p (const unsigned int)
rtx	default_internal_arg_pointer (void)
rtx	default_static_chain (const_tree, bool)
void	default_trampoline_init (rtx, tree, rtx)
void	default_emit_call_builtin___clear_cache (rtx, rtx)
poly_int64	default_return_pops_args (tree, tree, poly_int64)
reg_class_t	default_ira_change_pseudo_allocno_class (int, reg_class_t, reg_class_t)
bool	default_lra_p (void)
int	default_register_priority (int)
bool	default_register_usage_leveling_p (void)
bool	default_different_addr_displacement_p (void)
reg_class_t	default_secondary_reload (bool, rtx, reg_class_t, machine_mode, secondary_reload_info *)
machine_mode	default_secondary_memory_needed_mode (machine_mode)
void	default_target_option_override (void)
void	hook_void_bitmap (bitmap)
int	default_reloc_rw_mask (void)
bool	default_generate_pic_addr_diff_vec (void)
void	default_asm_out_constructor (rtx, int)
void	default_asm_out_destructor (rtx, int)
tree	default_mangle_decl_assembler_name (tree, tree)
tree	default_emutls_var_fields (tree, tree *)
tree	default_emutls_var_init (tree, tree, tree)
unsigned int	default_hard_regno_nregs (unsigned int, machine_mode)
bool	default_hard_regno_scratch_ok (unsigned int)
bool	default_mode_dependent_address_p (const_rtx, addr_space_t)
bool	default_new_address_profitable_p (rtx, rtx_insn *, rtx)
bool	default_target_option_valid_attribute_p (tree, tree, tree, int)
bool	default_target_option_valid_version_attribute_p (tree, tree, tree, int)
bool	default_target_option_pragma_parse (tree, tree)
bool	default_target_can_inline_p (tree, tree)
bool	default_update_ipa_fn_target_info (unsigned int &, const gimple *)
bool	default_need_ipa_fn_target_info (const_tree, unsigned int &)
bool	default_valid_pointer_mode (scalar_int_mode)
bool	default_ref_may_alias_errno (class ao_ref *)
scalar_int_mode	default_addr_space_pointer_mode (addr_space_t)
scalar_int_mode	default_addr_space_address_mode (addr_space_t)
bool	default_addr_space_valid_pointer_mode (scalar_int_mode, addr_space_t)
bool	default_addr_space_legitimate_address_p (machine_mode, rtx, bool, addr_space_t, code_helper)
rtx	default_addr_space_legitimize_address (rtx, rtx, machine_mode, addr_space_t)
bool	default_addr_space_subset_p (addr_space_t, addr_space_t)
bool	default_addr_space_zero_address_valid (addr_space_t)
int	default_addr_space_debug (addr_space_t)
void	default_addr_space_diagnose_usage (addr_space_t, location_t)
rtx	default_addr_space_convert (rtx, tree, tree)
unsigned int	default_case_values_threshold (void)
bool	default_have_conditional_execution (void)
bool	default_have_ccmp (void)
bool	default_libc_has_function (enum function_class, tree)
bool	default_libc_has_fast_function (int fcode)
bool	no_c99_libc_has_function (enum function_class, tree)
bool	gnu_libc_has_function (enum function_class, tree)
bool	bsd_libc_has_function (enum function_class, tree)
unsigned	default_fortify_source_default_level (void)
unsigned	default_libm_function_max_error (unsigned, machine_mode, bool)
unsigned	glibc_linux_libm_function_max_error (unsigned, machine_mode, bool)
tree	default_builtin_tm_load_store (tree)
int	default_memory_move_cost (machine_mode, reg_class_t, bool)
int	default_register_move_cost (machine_mode, reg_class_t, reg_class_t)
bool	default_slow_unaligned_access (machine_mode, unsigned int)
HOST_WIDE_INT	default_estimated_poly_value (poly_int64, poly_value_estimate_kind)
bool	default_use_by_pieces_infrastructure_p (unsigned HOST_WIDE_INT, unsigned int, enum by_pieces_operation, bool)
int	default_compare_by_pieces_branch_ratio (machine_mode)
void	default_print_patchable_function_entry (FILE *, unsigned HOST_WIDE_INT, bool)
bool	default_profile_before_prologue (void)
reg_class_t	default_preferred_reload_class (rtx, reg_class_t)
reg_class_t	default_preferred_output_reload_class (rtx, reg_class_t)
reg_class_t	default_preferred_rename_class (reg_class_t rclass)
bool	default_class_likely_spilled_p (reg_class_t)
unsigned char	default_class_max_nregs (reg_class_t, machine_mode)
enum unwind_info_type	default_debug_unwind_info (void)
void	default_canonicalize_comparison (int *, rtx *, rtx *, bool)
section *	default_function_section (tree decl, enum node_frequency freq, bool startup, bool exit)
unsigned int	default_dwarf_poly_indeterminate_value (unsigned int, unsigned int *, int *)
machine_mode	default_dwarf_frame_reg_mode (int)
fixed_size_mode	default_get_reg_raw_mode (int)
bool	default_keep_leaf_when_profiled ()
void *	default_get_pch_validity (size_t *)
const char *	default_pch_valid_p (const void *, size_t)
void	default_asm_output_ident_directive (const char *)
scalar_int_mode	default_cstore_mode (enum insn_code)
bool	default_member_type_forces_blk (const_tree, machine_mode)
void	default_atomic_assign_expand_fenv (tree *, tree *, tree *)
tree	build_va_arg_indirect_ref (tree)
tree	std_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *)
bool	can_use_doloop_if_innermost (const widest_int &, const widest_int &, unsigned int, bool)
bool	default_optab_supported_p (int, machine_mode, machine_mode, optimization_type)
unsigned int	default_max_noce_ifcvt_seq_cost (edge)
bool	default_noce_conversion_profitable_p (rtx_insn *, struct noce_if_info *)
unsigned int	default_min_arithmetic_precision (void)
enum flt_eval_method	default_excess_precision (enum excess_precision_type)
bool	default_bitint_type_info (int, struct bitint_info *)
machine_mode	default_mode_for_floating_type (enum tree_index)
HOST_WIDE_INT	default_stack_clash_protection_alloca_probe_range (void)
void	default_select_early_remat_modes (sbitmap)
tree	default_preferred_else_value (unsigned, tree, unsigned, tree *)
bool	default_have_speculation_safe_value (bool)
bool	speculation_safe_value_not_needed (bool)
rtx	default_speculation_safe_value (machine_mode, rtx, rtx, rtx)
bool	default_memtag_can_tag_addresses ()
uint8_t	default_memtag_tag_size ()
uint8_t	default_memtag_granule_size ()
rtx	default_memtag_insert_random_tag (rtx, rtx)
rtx	default_memtag_add_tag (rtx, poly_int64, uint8_t)
rtx	default_memtag_set_tag (rtx, rtx, rtx)
rtx	default_memtag_extract_tag (rtx, rtx)
rtx	default_memtag_untagged_pointer (rtx, rtx)

Function Documentation

bsd_libc_has_function()

bool bsd_libc_has_function ( enum function_class fn_class, tree type )

extern

Assume some c99 functions are present at the runtime including sincos.   

References function_c94, function_c99_misc, and function_sincos.

build_va_arg_indirect_ref()

tree build_va_arg_indirect_ref ( tree addr )

extern

Build an indirect-ref expression over the given TREE, which represents a
piece of a va_arg() expansion.   

References build_simple_mem_ref_loc(), and EXPR_LOCATION.

Referenced by std_gimplify_va_arg_expr().

can_use_doloop_if_innermost()

bool can_use_doloop_if_innermost ( const widest_int & , const widest_int & , unsigned int loop_depth, bool  )

extern

An implementation of TARGET_CAN_USE_DOLOOP_P for targets that do
not support nested low-overhead loops.   

References loop_depth().

constant_alignment_word_strings()

HOST_WIDE_INT constant_alignment_word_strings ( const_tree exp, HOST_WIDE_INT align )

extern

An implementation of TARGET_CONSTANT_ALIGNMENT that aligns strings
to at least BITS_PER_WORD but otherwise makes no changes.   

References BITS_PER_WORD, exp(), MAX, and TREE_CODE.

default_addr_space_address_mode()

scalar_int_mode default_addr_space_address_mode ( addr_space_t addrspace )

extern

Return the mode for an address in a given ADDRSPACE,
defaulting to Pmode for all address spaces.   

Referenced by target_default_pointer_address_modes_p().

default_addr_space_convert()

rtx default_addr_space_convert ( rtx op, tree from_type, tree to_type )

extern

The default hook for TARGET_ADDR_SPACE_CONVERT. This hook should never be
called for targets with only a generic address space.   

References gcc_unreachable.

default_addr_space_debug()

int default_addr_space_debug ( addr_space_t as )

extern

The default hook for debugging the address space is to return the
address space number to indicate DW_AT_address_class.   

default_addr_space_diagnose_usage()

void default_addr_space_diagnose_usage ( addr_space_t , location_t  )

extern

The default hook implementation for TARGET_ADDR_SPACE_DIAGNOSE_USAGE.
Don't complain about any address space.   

default_addr_space_legitimate_address_p()

bool default_addr_space_legitimate_address_p ( machine_mode mode, rtx mem, bool strict, addr_space_t as, code_helper code )

extern

Named address space version of legitimate_address_p.
By default, all address spaces have the same form.   

References targetm.

default_addr_space_legitimize_address()

rtx default_addr_space_legitimize_address ( rtx x, rtx oldx, machine_mode mode, addr_space_t as )

extern

Named address space version of LEGITIMIZE_ADDRESS.
By default, all address spaces have the same form.   

References targetm.

default_addr_space_pointer_mode()

scalar_int_mode default_addr_space_pointer_mode ( addr_space_t addrspace )

extern

Return the mode for a pointer to a given ADDRSPACE,
defaulting to ptr_mode for all address spaces.   

References ptr_mode.

Referenced by target_default_pointer_address_modes_p().

default_addr_space_subset_p()

bool default_addr_space_subset_p ( addr_space_t subset, addr_space_t superset )

extern

The default hook for determining if one named address space is a subset of
another and to return which address space to use as the common address
space.   

default_addr_space_valid_pointer_mode()

bool default_addr_space_valid_pointer_mode ( scalar_int_mode mode, addr_space_t as )

extern

Named address space version of valid_pointer_mode.
To match the above, the same modes apply to all address spaces.   

References targetm.

default_addr_space_zero_address_valid()

bool default_addr_space_zero_address_valid ( addr_space_t as )

extern

The default hook for determining if 0 within a named address
space is a valid address.   

default_asm_out_constructor()

void default_asm_out_constructor ( rtx symbol, int priority )

extern

Record an element in the table of global constructors.  SYMBOL is
a SYMBOL_REF of the function to be called; PRIORITY is a number
between 0 and MAX_INIT_PRIORITY.   

References sorry().

default_asm_out_destructor()

void default_asm_out_destructor ( rtx symbol, int priority )

extern

Likewise for global destructors.   

References sorry().

default_asm_output_ident_directive()

void default_asm_output_ident_directive ( const char * ident_str )

extern

Default TARGET_ASM_OUTPUT_IDENT hook.

This is a bit of a cheat.  The real default is a no-op, but this
hook is the default for all targets with a .ident directive.   

References asm_out_file, build_string(), symbol_table::finalize_toplevel_asm(), NULL, PARSING, symbol_table::state, and symtab.

default_atomic_assign_expand_fenv()

void default_atomic_assign_expand_fenv ( tree * , tree * , tree *  )

extern

Default implementation of TARGET_ATOMIC_ASSIGN_EXPAND_FENV.   

default_autovectorize_vector_modes()

unsigned int default_autovectorize_vector_modes ( vector_modes * , bool  )

extern

By default only the preferred vector mode is tried.   

default_bitint_type_info()

bool default_bitint_type_info ( int , struct bitint_info *  )

extern

Return true if _BitInt(N) is supported and fill details about it into
*INFO.   

default_builtin_md_vectorized_function()

tree default_builtin_md_vectorized_function ( tree , tree , tree  )

extern

Mapping of target builtin functions to vectorized variants.   

References NULL_TREE.

default_builtin_reciprocal()

tree default_builtin_reciprocal ( tree )

extern

Reciprocal.   

References NULL_TREE.

default_builtin_setjmp_frame_value()

rtx default_builtin_setjmp_frame_value ( void )

extern

The default implementation of TARGET_BUILTIN_SETJMP_FRAME_VALUE.   

References virtual_stack_vars_rtx.

default_builtin_support_vector_misalignment()

bool default_builtin_support_vector_misalignment ( machine_mode mode, const_tree type, int misalignment, bool is_packed )

extern

By default, assume that a target supports any factor of misalignment
memory access if it supports movmisalign patten.
is_packed is true if the memory access is defined in a packed struct.   

References optab_handler().

default_builtin_tm_load_store()

tree default_builtin_tm_load_store ( tree )

extern

default_builtin_vector_alignment_reachable()

bool default_builtin_vector_alignment_reachable ( const_tree , bool is_packed )

extern

By default assume vectors of element TYPE require a multiple of the natural
alignment of TYPE.  TYPE is naturally aligned if IS_PACKED is false.   

default_builtin_vectorization_cost()

int default_builtin_vectorization_cost ( enum vect_cost_for_stmt type_of_cost, tree vectype, int misalign )

extern

Default vectorizer cost model values.   

References cond_branch_not_taken, cond_branch_taken, estimated_poly_value(), gcc_unreachable, scalar_load, scalar_stmt, scalar_store, scalar_to_vec, TYPE_VECTOR_SUBPARTS(), unaligned_load, unaligned_store, vec_construct, vec_perm, vec_promote_demote, vec_to_scalar, vector_load, vector_stmt, and vector_store.

default_builtin_vectorized_function()

tree default_builtin_vectorized_function ( unsigned int , tree , tree  )

extern

Mapping of builtin functions to vectorized variants.   

References NULL_TREE.

default_canonicalize_comparison()

void default_canonicalize_comparison ( int * , rtx * , rtx * , bool  )

extern

Default version of canonicalize_comparison.   

default_case_values_threshold()

unsigned int default_case_values_threshold ( void )

extern

If the machine does not have a case insn that compares the bounds,
this means extra overhead for dispatch tables, which raises the
threshold for using them.   

References targetm.

default_cc_modes_compatible()

machine_mode default_cc_modes_compatible ( machine_mode m1, machine_mode m2 )

extern

default_class_likely_spilled_p()

bool default_class_likely_spilled_p ( reg_class_t rclass )

extern

The default implementation of TARGET_CLASS_LIKELY_SPILLED_P.   

References reg_class_size.

default_class_max_nregs()

unsigned char default_class_max_nregs ( reg_class_t rclass, machine_mode mode )

extern

The default implementation of TARGET_CLASS_MAX_NREGS.   

References GET_MODE_SIZE(), MACRO_MODE, and poly_int< N, C >::to_constant().

default_compare_by_pieces_branch_ratio()

int default_compare_by_pieces_branch_ratio ( machine_mode )

extern

This hook controls code generation for expanding a memcmp operation by
pieces.  Return 1 for the normal pattern of compare/jump after each pair
of loads, or a higher number to reduce the number of branches.   

default_conditional_operation_is_expensive()

bool default_conditional_operation_is_expensive ( unsigned ifn )

extern

By default consider masked stores to be expensive.   

default_const_not_ok_for_debug_p()

bool default_const_not_ok_for_debug_p ( rtx x )

extern

References GET_CODE.

default_constant_alignment()

HOST_WIDE_INT default_constant_alignment ( const_tree , HOST_WIDE_INT align )

extern

The default implementation of TARGET_CONSTANT_ALIGNMENT.   

default_cstore_mode()

scalar_int_mode default_cstore_mode ( enum insn_code icode )

extern

Default version of cstore_mode.   

References as_a(), and insn_data.

default_cxx_adjust_cdtor_callabi_fntype()

tree default_cxx_adjust_cdtor_callabi_fntype ( tree fntype )

extern

Returns modified FUNCTION_TYPE for cdtor callabi.   

default_cxx_get_cookie_size()

tree default_cxx_get_cookie_size ( tree type )

extern

Returns the size of the cookie to use when allocating an array
whose elements have the indicated TYPE.  Assumes that it is already
known that a cookie is needed.   

References size_in_bytes(), size_int, sizetype, tree_int_cst_lt(), and TYPE_ALIGN_UNIT.

default_cxx_guard_type()

tree default_cxx_guard_type ( void )

extern

The generic C++ ABI specifies this is a 64-bit value.   

References long_long_integer_type_node.

default_debug_unwind_info()

enum unwind_info_type default_debug_unwind_info ( void )

extern

Determine the debugging unwind mechanism for the target.   

References dwarf_debuginfo_p(), UI_DWARF2, and UI_NONE.

default_decimal_float_supported_p()

bool default_decimal_float_supported_p ( void )

extern

True if the target supports decimal floating point.   

default_different_addr_displacement_p()

bool default_different_addr_displacement_p ( void )

extern

default_dwarf_frame_reg_mode()

machine_mode default_dwarf_frame_reg_mode ( int regno )

extern

Determine the correct mode for a Dwarf frame register that represents
register REGNO.   

References choose_hard_reg_mode(), eh_edge_abi, reg_raw_mode, and targetm.

default_dwarf_poly_indeterminate_value()

unsigned int default_dwarf_poly_indeterminate_value ( unsigned int , unsigned int * , int *  )

extern

Targets that set NUM_POLY_INT_COEFFS to something greater than 1
must define this hook.   

References gcc_unreachable.

default_eh_return_filter_mode()

scalar_int_mode default_eh_return_filter_mode ( void )

extern

References targetm.

default_emit_call_builtin___clear_cache()

void default_emit_call_builtin___clear_cache ( rtx begin, rtx end )

extern

Emit a call to __builtin___clear_cache.   

References begin(), BUILTIN_ASM_NAME_PTR, convert_memory_address, emit_library_call(), end(), LCT_NORMAL, and ptr_mode.

default_emit_support_tinfos()

void default_emit_support_tinfos ( emit_support_tinfos_callback )

extern

default_empty_mask_is_expensive()

bool default_empty_mask_is_expensive ( unsigned ifn )

extern

By default consider masked stores to be expensive.   

default_emutls_var_fields()

tree default_emutls_var_fields ( tree type, tree * name )

extern

Create the fields of the type for the control variables.  Ordinarily
this must match struct __emutls_object defined in emutls.c.  However
this is a target hook so that VxWorks can define its own layout.   

References build_decl(), DECL_CHAIN, DECL_CONTEXT, get_identifier(), ptr_type_node, type(), lang_hooks_for_types::type_for_mode, lang_hooks::types, UNKNOWN_LOCATION, and word_mode.

default_emutls_var_init()

tree default_emutls_var_init ( tree to, tree decl, tree proxy )

extern

Initialize emulated tls object TO, which refers to TLS variable DECL and
is initialized by PROXY.  As above, this is the default implementation of
a target hook overridden by VxWorks.   

References build_constructor(), build_int_cst(), DECL_ALIGN_UNIT, DECL_CHAIN, DECL_SIZE_UNIT, fold_convert, constructor_elt::index, null_pointer_node, TREE_TYPE, TYPE_FIELDS, constructor_elt::value, and vec_alloc().

default_estimated_poly_value()

HOST_WIDE_INT default_estimated_poly_value ( poly_int64 x, poly_value_estimate_kind  )

extern

The default implementation of TARGET_ESTIMATED_POLY_VALUE.   

References poly_int< N, C >::coeffs.

default_excess_precision()

enum flt_eval_method default_excess_precision ( enum excess_precision_type )

extern

Default implementation of TARGET_C_EXCESS_PRECISION.   

References FLT_EVAL_METHOD_PROMOTE_TO_FLOAT.

default_expand_builtin_saveregs()

rtx default_expand_builtin_saveregs ( void )

extern

References const0_rtx, and error().

default_external_libcall()

void default_external_libcall ( rtx fun )

extern

References asm_out_file.

default_external_stack_protect_fail()

tree default_external_stack_protect_fail ( void )

extern

References build_call_expr(), build_decl(), build_function_type_list(), DECL_ARTIFICIAL, DECL_EXTERNAL, DECL_IGNORED_P, DECL_VISIBILITY, DECL_VISIBILITY_SPECIFIED, get_identifier(), NULL_TREE, stack_chk_fail_decl, TREE_NOTHROW, TREE_PUBLIC, TREE_STATIC, TREE_THIS_VOLATILE, TREE_USED, UNKNOWN_LOCATION, VISIBILITY_DEFAULT, and void_type_node.

Referenced by default_hidden_stack_protect_fail().

default_fixed_point_supported_p()

bool default_fixed_point_supported_p ( void )

extern

True if the target supports fixed-point arithmetic.   

default_float_exceptions_rounding_supported_p()

bool default_float_exceptions_rounding_supported_p ( void )

extern

True if the target supports floating-point exceptions and rounding
modes.   

default_floatn_builtin_p()

bool default_floatn_builtin_p ( int func )

extern

Define this to return true if the _Floatn and _Floatnx built-in functions
should implicitly enable the built-in function without the __builtin_ prefix
in addition to the normal built-in function with the __builtin_ prefix.  The
default is to only enable built-in functions without the __builtin_ prefix
for the GNU C langauge.  The argument FUNC is the enum builtin_in_function
id of the function to be enabled.   

References lang_GNU_C(), and lang_GNU_OBJC().

default_floatn_mode()

opt_scalar_float_mode default_floatn_mode ( int n, bool extended )

extern

Return the machine mode to use for the type _FloatN, if EXTENDED is
false, or _FloatNx, if EXTENDED is true, or VOIDmode if not
supported.   

References opt_mode< T >::exists(), gcc_unreachable, REAL_MODE_FORMAT, and targetm.

default_fortify_source_default_level()

unsigned default_fortify_source_default_level ( void )

extern

By default, -fhardened will add -D_FORTIFY_SOURCE=2.   

default_function_arg()

rtx default_function_arg ( cumulative_args_t , const function_arg_info &  )

extern

References gcc_unreachable.

default_function_arg_advance()

void default_function_arg_advance ( cumulative_args_t , const function_arg_info &  )

extern

References gcc_unreachable.

default_function_arg_boundary()

unsigned int default_function_arg_boundary ( machine_mode mode, const_tree type )

extern

default_function_arg_offset()

HOST_WIDE_INT default_function_arg_offset ( machine_mode , const_tree  )

extern

Default implementation of TARGET_FUNCTION_ARG_OFFSET.   

default_function_arg_padding()

pad_direction default_function_arg_padding ( machine_mode mode, const_tree type )

extern

Default implementation of TARGET_FUNCTION_ARG_PADDING: usually pad
upward, but pad short args downward on big-endian machines.   

References GET_MODE_SIZE(), int_size_in_bytes(), PAD_DOWNWARD, PAD_UPWARD, poly_int< N, C >::to_constant(), TREE_CODE, and TYPE_SIZE.

default_function_arg_round_boundary()

unsigned int default_function_arg_round_boundary ( machine_mode mode, const_tree type )

extern

default_function_incoming_arg()

rtx default_function_incoming_arg ( cumulative_args_t , const function_arg_info &  )

extern

References gcc_unreachable.

default_function_section()

section * default_function_section ( tree decl, enum node_frequency freq, bool startup, bool exit )

extern

Choose named function section based on its frequency.   

References cgraph_node::get(), symtab_node::get(), get_named_text_section(), NODE_FREQUENCY_HOT, NODE_FREQUENCY_UNLIKELY_EXECUTED, NULL, and opt_for_fn.

default_function_value()

rtx default_function_value ( const_tree ret_type, const_tree fn_decl_or_type, bool outgoing )

extern

References DECL_P, gcc_unreachable, and NULL.

default_function_value_regno_p()

bool default_function_value_regno_p ( const unsigned int regno )

extern

The default hook for TARGET_FUNCTION_VALUE_REGNO_P.   

References gcc_unreachable.

default_generate_pic_addr_diff_vec()

bool default_generate_pic_addr_diff_vec ( void )

extern

By default, address diff vectors are generated
for jump tables when flag_pic is true.   

default_get_mask_mode()

opt_machine_mode default_get_mask_mode ( machine_mode mode )

extern

By default a vector of integers is used as a mask.   

References related_int_vector_mode().

default_get_pch_validity()

void * default_get_pch_validity ( size_t * sz )

extern

Default version of get_pch_validity.
By default, every flag difference is fatal; that will be mostly right for
most targets, but completely right for very few.   

References cl_options_count, i, option_affects_pch_p(), r, target_flags, and targetm.

default_get_reg_raw_mode()

fixed_size_mode default_get_reg_raw_mode ( int regno )

extern

To be used by targets where reg_raw_mode doesn't return the right
mode for registers used in apply_builtin_return and apply_builtin_arg.   

References as_a(), and reg_raw_mode.

default_goacc_dim_limit()

int default_goacc_dim_limit ( int )

extern

default_goacc_fork_join()

bool default_goacc_fork_join ( gcall * , const int [], bool  )

extern

default_goacc_reduction()

void default_goacc_reduction ( gcall * call )

extern

Default goacc.reduction early expander.

LHS-opt = IFN_REDUCTION (KIND, RES_PTR, VAR, LEVEL, OP, OFFSET)
If RES_PTR is not integer-zerop:
    SETUP - emit 'LHS = *RES_PTR', LHS = NULL
    TEARDOWN - emit '*RES_PTR = VAR'
If LHS is not NULL
    emit 'LHS = VAR'    

References build_simple_mem_ref, gimple_build_assign(), gimple_call_arg(), gimple_call_lhs(), gimple_seq_add_stmt(), gsi_for_stmt(), gsi_replace_with_seq(), integer_zerop(), NULL, and TREE_INT_CST_LOW.

Referenced by execute_oacc_device_lower().

default_goacc_validate_dims()

bool default_goacc_validate_dims ( tree , int [], int , unsigned  )

extern

OpenACC hooks.   

default_hard_regno_nregs()

unsigned int default_hard_regno_nregs ( unsigned int , machine_mode mode )

extern

The defualt implementation of TARGET_HARD_REGNO_NREGS.   

References CEIL, and GET_MODE_SIZE().

default_hard_regno_scratch_ok()

bool default_hard_regno_scratch_ok ( unsigned int regno )

extern

default_has_ifunc_p()

bool default_has_ifunc_p ( void )

extern

True if the target supports GNU indirect functions.   

default_have_ccmp()

bool default_have_ccmp ( void )

extern

References NULL, and targetm.

default_have_conditional_execution()

bool default_have_conditional_execution ( void )

extern

default_have_speculation_safe_value()

bool default_have_speculation_safe_value ( bool active )

extern

Default implementation of TARGET_HAVE_SPECULATION_SAFE_VALUE.   

default_hidden_stack_protect_fail()

tree default_hidden_stack_protect_fail ( void )

extern

References build_call_expr(), build_decl(), build_function_type_list(), DECL_ARTIFICIAL, DECL_EXTERNAL, DECL_IGNORED_P, DECL_VISIBILITY, DECL_VISIBILITY_SPECIFIED, default_external_stack_protect_fail(), get_identifier(), NULL_TREE, stack_chk_fail_decl, TREE_NOTHROW, TREE_PUBLIC, TREE_STATIC, TREE_THIS_VOLATILE, TREE_USED, UNKNOWN_LOCATION, VISIBILITY_HIDDEN, and void_type_node.

default_internal_arg_pointer()

rtx default_internal_arg_pointer ( void )

extern

References copy_to_reg(), fixed_regs, and virtual_incoming_args_rtx.

default_invalid_within_doloop()

const char * default_invalid_within_doloop ( const rtx_insn * insn )

extern

NULL if INSN insn is valid within a low-overhead loop, otherwise returns
an error message.

This function checks whether a given INSN is valid within a low-overhead
loop.  If INSN is invalid it returns the reason for that, otherwise it
returns NULL. A called function may clobber any special registers required
for low-overhead looping. Additionally, some targets (eg, PPC) use the count
register for branch on table instructions. We reject the doloop pattern in
these cases.   

References CALL_P, computed_jump_p(), NULL, and tablejump_p().

default_ira_change_pseudo_allocno_class()

reg_class_t default_ira_change_pseudo_allocno_class ( int regno, reg_class_t cl, reg_class_t best_cl )

extern

default_keep_leaf_when_profiled()

bool default_keep_leaf_when_profiled ( )

extern

Return true if a leaf function should stay leaf even with profiling
enabled.   

default_legitimate_address_p()

bool default_legitimate_address_p ( machine_mode mode, rtx addr, bool strict, code_helper  )

extern

Default target hook functions.
   Copyright (C) 2003-2024 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/>.   

References gcc_unreachable, memory_address_p, and strict_memory_address_p.

default_legitimize_address()

rtx default_legitimize_address ( rtx x, rtx orig_x, machine_mode mode )

extern

default_legitimize_address_displacement()

bool default_legitimize_address_displacement ( rtx * , rtx * , poly_int64 , machine_mode  )

extern

default_libc_has_fast_function()

bool default_libc_has_fast_function ( int fcode )

extern

By default assume that libc has not a fast implementation.   

default_libc_has_function()

bool default_libc_has_function ( enum function_class fn_class, tree type )

extern

By default we assume that c99 functions are present at the runtime,
but sincos is not.   

References function_c94, function_c99_math_complex, and function_c99_misc.

default_libcall_value()

rtx default_libcall_value ( machine_mode mode, const_rtx fun )

extern

References gcc_unreachable, and MACRO_MODE.

default_libgcc_cmp_return_mode()

scalar_int_mode default_libgcc_cmp_return_mode ( void )

extern

References word_mode.

default_libgcc_floating_mode_supported_p()

bool default_libgcc_floating_mode_supported_p ( scalar_float_mode mode )

extern

Return true if libgcc supports floating-point mode MODE (known to
be supported as a scalar mode).   

default_libgcc_shift_count_mode()

scalar_int_mode default_libgcc_shift_count_mode ( void )

extern

References word_mode.

default_libm_function_max_error()

unsigned default_libm_function_max_error ( unsigned , machine_mode , bool  )

extern

Referenced by glibc_linux_libm_function_max_error().

default_lra_p()

bool default_lra_p ( void )

extern

default_mangle_assembler_name()

tree default_mangle_assembler_name ( const char * name )

extern

The default implementation of TARGET_MANGLE_ASSEMBLER_NAME.   

References get_identifier(), NULL, targetm, and user_label_prefix.

default_mangle_decl_assembler_name()

tree default_mangle_decl_assembler_name ( tree decl, tree id )

extern

By default, do no modification.  

default_max_noce_ifcvt_seq_cost()

unsigned int default_max_noce_ifcvt_seq_cost ( edge e )

extern

Default implementation of TARGET_MAX_NOCE_IFCVT_SEQ_COST.   

References COSTS_N_INSNS, OPTION_SET_P, and predictable_edge_p().

default_member_type_forces_blk()

bool default_member_type_forces_blk ( const_tree , machine_mode  )

extern

Default version of member_type_forces_blk.   

default_memory_move_cost()

int default_memory_move_cost ( machine_mode mode, reg_class_t rclass, bool in )

extern

Compute cost of moving registers to/from memory.   

References MACRO_MODE, and memory_move_secondary_cost().

default_memtag_add_tag()

rtx default_memtag_add_tag ( rtx base, poly_int64 offset, uint8_t tag_offset )

extern

The default implementation of TARGET_MEMTAG_ADD_TAG.   

References HWASAN_SHIFT, offset, and plus_constant().

default_memtag_can_tag_addresses()

bool default_memtag_can_tag_addresses ( )

extern

default_memtag_extract_tag()

rtx default_memtag_extract_tag ( rtx tagged_pointer, rtx target )

extern

The default implementation of TARGET_MEMTAG_EXTRACT_TAG.   

References expand_simple_binop(), gcc_assert, gen_lowpart, HWASAN_SHIFT_RTX, and OPTAB_DIRECT.

default_memtag_granule_size()

uint8_t default_memtag_granule_size ( )

extern

default_memtag_insert_random_tag()

rtx default_memtag_insert_random_tag ( rtx untagged, rtx target )

extern

The default implementation of TARGET_MEMTAG_INSERT_RANDOM_TAG.   

References emit_library_call_value(), gcc_assert, init_one_libfunc(), LCT_NORMAL, NULL_RTX, and targetm.

default_memtag_set_tag()

rtx default_memtag_set_tag ( rtx untagged, rtx tag, rtx target )

extern

The default implementation of TARGET_MEMTAG_SET_TAG.   

References expand_simple_binop(), gcc_assert, GET_MODE, HWASAN_SHIFT_RTX, NULL_RTX, OPTAB_DIRECT, and OPTAB_WIDEN.

default_memtag_tag_size()

uint8_t default_memtag_tag_size ( )

extern

default_memtag_untagged_pointer()

rtx default_memtag_untagged_pointer ( rtx tagged_pointer, rtx target )

extern

The default implementation of TARGET_MEMTAG_UNTAGGED_POINTER.   

References expand_simple_binop(), gcc_assert, gen_int_mode(), HOST_WIDE_INT_1U, HWASAN_SHIFT, and OPTAB_DIRECT.

default_min_arithmetic_precision()

unsigned int default_min_arithmetic_precision ( void )

extern

Default implementation of TARGET_MIN_ARITHMETIC_PRECISION.   

References BITS_PER_WORD, and WORD_REGISTER_OPERATIONS.

default_min_divisions_for_recip_mul()

unsigned int default_min_divisions_for_recip_mul ( machine_mode mode )

extern

The default implementation of TARGET_MIN_DIVISIONS_FOR_RECIP_MUL.   

References have_insn_for().

default_mode_dependent_address_p()

bool default_mode_dependent_address_p ( const_rtx addr, addr_space_t addrspace )

extern

The default implementation of TARGET_MODE_DEPENDENT_ADDRESS_P.   

default_mode_for_floating_type()

machine_mode default_mode_for_floating_type ( enum tree_index ti )

extern

Return machine mode for a floating type which is indicated
by the given enum tree_index.   

References gcc_assert, TI_DOUBLE_TYPE, TI_FLOAT_TYPE, and TI_LONG_DOUBLE_TYPE.

default_mode_for_suffix()

machine_mode default_mode_for_suffix ( char suffix )

extern

Return machine mode for non-standard suffix
or VOIDmode if non-standard suffixes are unsupported.   

default_mode_rep_extended()

int default_mode_rep_extended ( scalar_int_mode , scalar_int_mode  )

extern

The default implementation of TARGET_MODE_REP_EXTENDED.   

default_need_ipa_fn_target_info()

bool default_need_ipa_fn_target_info ( const_tree , unsigned int &  )

extern

By default, return false to not need to collect any target information
for inlining.  Target maintainer should re-define the hook if the
target want to take advantage of it.   

default_new_address_profitable_p()

bool default_new_address_profitable_p ( rtx memref, rtx_insn * insn, rtx new_addr )

extern

The default implementation of TARGET_NEW_ADDRESS_PROFITABLE_P.   

default_noce_conversion_profitable_p()

bool default_noce_conversion_profitable_p ( rtx_insn * seq, struct noce_if_info * if_info )

extern

Return true if SEQ is a good candidate as a replacement for the
if-convertible sequence described in IF_INFO.
This is the default implementation that targets can override
through a target hook.   

References noce_if_info::max_seq_cost, seq_cost(), and noce_if_info::speed_p.

default_optab_supported_p()

bool default_optab_supported_p ( int , machine_mode , machine_mode , optimization_type  )

extern

Default implementation of TARGET_OPTAB_SUPPORTED_P.   

default_pch_valid_p()

const char * default_pch_valid_p ( const void * data_p, size_t len )

extern

Default version of pch_valid_p.   

References _, cl_options, cl_options_count, i, NULL, option_affects_pch_p(), pch_option_mismatch(), r, target_flags, and targetm.

default_predict_doloop_p()

bool default_predict_doloop_p ( class loop * loop )

extern

Return true if we predict the loop LOOP will be transformed to a
low-overhead loop, otherwise return false.

By default, false is returned, as this hook's applicability should be
verified for each target.  Target maintainers should re-define the hook
if the target can take advantage of it.   

default_preferred_div_as_shifts_over_mult()

bool default_preferred_div_as_shifts_over_mult ( const_tree type )

extern

The default implementation of
TARGET_VECTORIZE_PREFERRED_DIV_AS_SHIFTS_OVER_MULT.   

References can_mult_highpart_p(), TYPE_MODE, and TYPE_UNSIGNED.

default_preferred_doloop_mode()

machine_mode default_preferred_doloop_mode ( machine_mode mode )

extern

By default, just use the input MODE itself.   

default_preferred_else_value()

tree default_preferred_else_value ( unsigned , tree type, unsigned , tree *  )

extern

The default implementation of TARGET_PREFERRED_ELSE_VALUE.   

References build_zero_cst().

default_preferred_output_reload_class()

reg_class_t default_preferred_output_reload_class ( rtx x, reg_class_t rclass )

extern

The default implementation of TARGET_OUTPUT_PREFERRED_RELOAD_CLASS.   

default_preferred_reload_class()

reg_class_t default_preferred_reload_class ( rtx x, reg_class_t rclass )

extern

The default implementation of TARGET_PREFERRED_RELOAD_CLASS.   

default_preferred_rename_class()

reg_class_t default_preferred_rename_class ( reg_class_t rclass )

extern

The default implementation of TARGET_PREFERRED_RENAME_CLASS.   

default_preferred_simd_mode()

machine_mode default_preferred_simd_mode ( scalar_mode mode )

extern

By default, only attempt to parallelize bitwise operations, and
possibly adds/subtracts using bit-twiddling.   

References word_mode.

default_preferred_vector_alignment()

poly_uint64 default_preferred_vector_alignment ( const_tree type )

extern

The default implementation of
TARGET_VECTORIZE_PREFERRED_VECTOR_ALIGNMENT.   

References TYPE_ALIGN.

default_pretend_outgoing_varargs_named()

bool default_pretend_outgoing_varargs_named ( cumulative_args_t ca )

extern

References default_setup_incoming_varargs(), and targetm.

default_print_operand()

void default_print_operand ( FILE * stream, rtx x, int code )

extern

Emit to STREAM the assembler syntax for insn operand X.   

References gcc_unreachable.

default_print_operand_address()

void default_print_operand_address ( FILE * stream, machine_mode , rtx x )

extern

Emit to STREAM the assembler syntax for an insn operand whose memory
address is X.   

References gcc_unreachable.

default_print_operand_punct_valid_p()

bool default_print_operand_punct_valid_p ( unsigned char code )

extern

Return true if CODE is a valid punctuation character for the
`print_operand' hook.   

default_print_patchable_function_entry()

void default_print_patchable_function_entry ( FILE * file, unsigned HOST_WIDE_INT patch_area_size, bool record_p )

extern

Write PATCH_AREA_SIZE NOPs into the asm outfile FILE around a function
entry.  If RECORD_P is true and the target supports named sections,
the location of the NOPs will be recorded in a special object section
called "__patchable_function_entries".  This routine may be called
twice per function to put NOPs before and after the function
entry.   

References ASM_OUTPUT_LABEL, assemble_align(), assemble_name_raw(), current_function_decl, current_function_funcdef_no, DECL_COMDAT_GROUP, fputc(), gcc_assert, get_insn_template(), get_section(), i, in_section, integer_asm_op(), make_insn_raw(), NULL, output_asm_insn(), POINTER_SIZE, POINTER_SIZE_UNITS, recog_memoized(), SECTION_LINK_ORDER, SECTION_RELRO, SECTION_WRITE, switch_to_comdat_section(), and switch_to_section().

default_profile_before_prologue()

bool default_profile_before_prologue ( void )

extern

default_promote_function_mode()

machine_mode default_promote_function_mode ( const_tree type, machine_mode mode, int * punsignedp, const_tree funtype, int for_return )

extern

References NULL_TREE, and promote_mode().

default_promote_function_mode_always_promote()

machine_mode default_promote_function_mode_always_promote ( const_tree type, machine_mode mode, int * punsignedp, const_tree funtype, int for_return )

extern

References promote_mode().

default_push_argument()

bool default_push_argument ( unsigned int )

extern

Default implementation of TARGET_PUSH_ARGUMENT.   

References ACCUMULATE_OUTGOING_ARGS.

default_ref_may_alias_errno()

bool default_ref_may_alias_errno ( ao_ref * ref )

extern

Determine whether the memory reference specified by REF may alias
the C libraries errno location.   

References pt_solution::anything, ao_ref_base(), DECL_EXTERNAL, DECL_P, integer_type_node, pt_solution::nonlocal, ptr_info_def::pt, SSA_NAME_PTR_INFO, TREE_CODE, TREE_OPERAND, TREE_STATIC, TREE_TYPE, TYPE_MODE, and TYPE_UNSIGNED.

default_register_move_cost()

int default_register_move_cost ( machine_mode mode, reg_class_t from, reg_class_t to )

extern

Compute cost of moving data from a register of class FROM to one of
TO, using MODE.   

References MACRO_MODE.

default_register_priority()

int default_register_priority ( int hard_regno )

extern

default_register_usage_leveling_p()

bool default_register_usage_leveling_p ( void )

extern

default_reloc_rw_mask()

int default_reloc_rw_mask ( void )

extern

By default, if flag_pic is true, then neither local nor global relocs
should be placed in readonly memory.   

default_return_in_memory()

bool default_return_in_memory ( const_tree type, const_tree fntype )

extern

References TYPE_MODE.

default_return_pops_args()

poly_int64 default_return_pops_args ( tree , tree , poly_int64  )

extern

default_scalar_mode_supported_p()

bool default_scalar_mode_supported_p ( scalar_mode mode )

extern

True if MODE is valid for the target.  By "valid", we mean able to
be manipulated in non-trivial ways.  In particular, this means all
the arithmetic is supported.

By default we guess this means that any C type is supported.  If
we can't map the mode back to a type that would be available in C,
then reject it.  Special case, here, is the double-word arithmetic
supported by optabs.cc.   

References BITS_PER_WORD, CHAR_TYPE_SIZE, gcc_unreachable, GET_MODE_CLASS, GET_MODE_PRECISION(), INT_TYPE_SIZE, LONG_LONG_TYPE_SIZE, LONG_TYPE_SIZE, SHORT_TYPE_SIZE, targetm, TI_DOUBLE_TYPE, TI_FLOAT_TYPE, and TI_LONG_DOUBLE_TYPE.

default_secondary_memory_needed_mode()

machine_mode default_secondary_memory_needed_mode ( machine_mode mode )

extern

The default implementation of TARGET_SECONDARY_MEMORY_NEEDED_MODE.   

References BITS_PER_WORD, GET_MODE_BITSIZE(), GET_MODE_CLASS, INTEGRAL_MODE_P, known_lt, mode_for_size(), opt_mode< T >::require(), and targetm.

default_secondary_reload()

reg_class_t default_secondary_reload ( bool in_p, rtx x, reg_class_t reload_class_i, machine_mode reload_mode, secondary_reload_info * sri )

extern

References direct_optab_handler(), gcc_assert, secondary_reload_info::icode, insn_data, insn_operand_matches(), MACRO_MODE, n_operands, secondary_reload_info::prev_sri, reg_class_subset_p(), and secondary_reload_info::t_icode.

default_select_early_remat_modes()

void default_select_early_remat_modes ( sbitmap )

extern

The default implementation of TARGET_EARLY_REMAT_MODES.   

default_setup_incoming_varargs()

void default_setup_incoming_varargs ( cumulative_args_t , const function_arg_info & , int * , int  )

extern

Referenced by default_pretend_outgoing_varargs_named().

default_shift_truncation_mask()

unsigned HOST_WIDE_INT default_shift_truncation_mask ( machine_mode mode )

extern

The default implementation of TARGET_SHIFT_TRUNCATION_MASK.   

References GET_MODE_UNIT_BITSIZE, and SHIFT_COUNT_TRUNCATED.

default_slow_unaligned_access()

bool default_slow_unaligned_access ( machine_mode , unsigned int  )

extern

The default implementation of TARGET_SLOW_UNALIGNED_ACCESS.   

default_speculation_safe_value()

rtx default_speculation_safe_value ( machine_mode mode, rtx result, rtx val, rtx failval )

extern

Default implementation of the speculation-safe-load builtin.  This
implementation simply copies val to result and generates a
speculation_barrier insn, if such a pattern is defined.   

References emit_insn(), and emit_move_insn().

default_split_reduction()

machine_mode default_split_reduction ( machine_mode mode )

extern

By default do not split reductions further.   

default_stack_clash_protection_alloca_probe_range()

HOST_WIDE_INT default_stack_clash_protection_alloca_probe_range ( void )

extern

Default implementation for
TARGET_STACK_CLASH_PROTECTION_ALLOCA_PROBE_RANGE.   

default_stack_protect_guard()

tree default_stack_protect_guard ( void )

extern

References build_decl(), DECL_ARTIFICIAL, DECL_EXTERNAL, DECL_IGNORED_P, DECL_RTL, get_identifier(), NULL, ptr_type_node, RTX_FLAG, stack_chk_guard_decl, TREE_PUBLIC, TREE_STATIC, TREE_THIS_VOLATILE, TREE_USED, and UNKNOWN_LOCATION.

default_static_chain()

rtx default_static_chain ( const_tree , bool  )

extern

default_static_rtx_alignment()

HOST_WIDE_INT default_static_rtx_alignment ( machine_mode mode )

extern

The default implementation of TARGET_STATIC_RTX_ALIGNMENT.   

References GET_MODE_ALIGNMENT.

default_target_can_inline_p()

bool default_target_can_inline_p ( tree caller, tree callee )

extern

References DECL_FUNCTION_SPECIFIC_TARGET, and target_option_default_node.

default_target_option_override()

void default_target_option_override ( void )

extern

default_target_option_pragma_parse()

bool default_target_option_pragma_parse ( tree , tree  )

extern

default_target_option_valid_attribute_p()

bool default_target_option_valid_attribute_p ( tree , tree , tree , int  )

extern

default_target_option_valid_version_attribute_p()

bool default_target_option_valid_version_attribute_p ( tree , tree , tree , int  )

extern

default_trampoline_init()

void default_trampoline_init ( rtx , tree , rtx  )

extern

default_translate_mode_attribute()

machine_mode default_translate_mode_attribute ( machine_mode mode )

extern

The default implementation of TARGET_TRANSLATE_MODE_ATTRIBUTE.   

default_unspec_may_trap_p()

int default_unspec_may_trap_p ( const_rtx x, unsigned flags )

extern

References GET_MODE, i, may_trap_p_1(), SCALAR_FLOAT_MODE_P, XVECEXP, and XVECLEN.

default_unwind_word_mode()

scalar_int_mode default_unwind_word_mode ( void )

extern

References word_mode.

default_update_ipa_fn_target_info()

bool default_update_ipa_fn_target_info ( unsigned int & , const gimple *  )

extern

default_use_by_pieces_infrastructure_p()

bool default_use_by_pieces_infrastructure_p ( unsigned HOST_WIDE_INT size, unsigned int alignment, enum by_pieces_operation op, bool speed_p )

extern

Return TRUE if the move_by_pieces/set_by_pieces infrastructure should be
used; return FALSE if the cpymem/setmem optab should be expanded, or
a call to memcpy emitted.   

References by_pieces_ninsns(), CLEAR_BY_PIECES, COMPARE_BY_PIECES, COMPARE_MAX_PIECES, get_move_ratio(), MOVE_BY_PIECES, MOVE_MAX_PIECES, SET_BY_PIECES, STORE_BY_PIECES, and STORE_MAX_PIECES.

default_valid_pointer_mode()

bool default_valid_pointer_mode ( scalar_int_mode mode )

extern

Determine whether or not a pointer mode is valid. Assume defaults
of ptr_mode or Pmode - can be overridden.   

References ptr_mode.

default_vector_alignment()

HOST_WIDE_INT default_vector_alignment ( const_tree type )

extern

Default to natural alignment for vector types, bounded by
MAX_OFILE_ALIGNMENT.   

References GET_MODE_ALIGNMENT, MAX, MAX_OFILE_ALIGNMENT, tree_fits_uhwi_p(), tree_to_uhwi(), TYPE_MODE, and TYPE_SIZE.

default_vectorize_create_costs()

vector_costs * default_vectorize_create_costs ( vec_info * vinfo, bool costing_for_scalar )

extern

By default, the cost model accumulates three separate costs (prologue,
loop body, and epilogue) for a vectorized loop or block.  So allocate an
array of three unsigned ints, set it to zero, and return its address.   

default_vectorize_related_mode()

opt_machine_mode default_vectorize_related_mode ( machine_mode vector_mode, scalar_mode element_mode, poly_uint64 nunits )

extern

The default implementation of TARGET_VECTORIZE_RELATED_MODE.   

References element_mode(), GET_MODE_SIZE(), mode_for_vector(), targetm, and VECTOR_MODE_P.

default_zero_call_used_regs()

HARD_REG_SET default_zero_call_used_regs ( HARD_REG_SET need_zeroed_hardregs )

extern

The default hook for TARGET_ZERO_CALL_USED_REGS.   

References CLEAR_HARD_REG_SET, CONST0_RTX, delete_insns_since(), emit_move_insn(), gcc_assert, gen_rtx_REG(), get_last_insn(), hard_reg_set_empty_p(), hard_regno_nregs(), i, zero_call_used_regs_opts_s::name, NULL, SET_HARD_REG_BIT, sorry(), targetm, TEST_HARD_REG_BIT, valid_insn_p(), zcur_select_mode_rtx(), and zero_call_used_regs_opts.

glibc_linux_libm_function_max_error()

unsigned glibc_linux_libm_function_max_error ( unsigned cfn, machine_mode mode, bool boundary_p )

extern

References default_libm_function_max_error(), df, gcc_fallthrough, ieee_double_format, ieee_extended_intel_128_format, ieee_extended_intel_96_format, ieee_extended_motorola_format, ieee_quad_format, ieee_single_format, mips_double_format, mips_quad_format, mips_single_format, motorola_double_format, motorola_single_format, and REAL_MODE_FORMAT.

gnu_libc_has_function()

bool gnu_libc_has_function ( enum function_class, tree type )

extern

hook_bool_const_rtx_commutative_p()

bool hook_bool_const_rtx_commutative_p ( const_rtx x, int outer_code )

extern

References COMMUTATIVE_P.

hook_bool_CUMULATIVE_ARGS_arg_info_false()

bool hook_bool_CUMULATIVE_ARGS_arg_info_false ( cumulative_args_t , const function_arg_info &  )

extern

hook_bool_CUMULATIVE_ARGS_arg_info_true()

bool hook_bool_CUMULATIVE_ARGS_arg_info_true ( cumulative_args_t , const function_arg_info &  )

extern

hook_bool_CUMULATIVE_ARGS_false()

bool hook_bool_CUMULATIVE_ARGS_false ( cumulative_args_t ca )

extern

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.   

Generic hook that takes a CUMULATIVE_ARGS pointer and returns false.   

hook_bool_CUMULATIVE_ARGS_true()

bool hook_bool_CUMULATIVE_ARGS_true ( cumulative_args_t a )

extern

Generic hook that takes a CUMULATIVE_ARGS pointer and returns true.   

hook_callee_copies_named()

bool hook_callee_copies_named ( cumulative_args_t ca, const function_arg_info & arg )

extern

Return true if a parameter follows callee copies conventions.  This
version of the hook is true for all named arguments.   

References function_arg_info::named.

hook_int_CUMULATIVE_ARGS_arg_info_0()

int hook_int_CUMULATIVE_ARGS_arg_info_0 ( cumulative_args_t , const function_arg_info &  )

extern

hook_invalid_arg_for_unprototyped_fn()

const char * hook_invalid_arg_for_unprototyped_fn ( const_tree typelist, const_tree funcdecl, const_tree val )

extern

References NULL.

hook_pass_by_reference_must_pass_in_stack()

bool hook_pass_by_reference_must_pass_in_stack ( cumulative_args_t , const function_arg_info & arg )

extern

Return true if a parameter must be passed by reference.  This version
of the TARGET_PASS_BY_REFERENCE hook uses just MUST_PASS_IN_STACK.   

References targetm.

hook_void_bitmap()

void hook_void_bitmap ( bitmap regs )

extern

hook_void_CUMULATIVE_ARGS()

void hook_void_CUMULATIVE_ARGS ( cumulative_args_t )

extern

hook_void_CUMULATIVE_ARGS_rtx_tree()

void hook_void_CUMULATIVE_ARGS_rtx_tree ( cumulative_args_t , rtx , tree  )

extern

hook_void_CUMULATIVE_ARGS_tree()

void hook_void_CUMULATIVE_ARGS_tree ( cumulative_args_t ca, tree  )

extern

no_c99_libc_has_function()

bool no_c99_libc_has_function ( enum function_class, tree type )

extern

speculation_safe_value_not_needed()

bool speculation_safe_value_not_needed ( bool active )

extern

Alternative implementation of TARGET_HAVE_SPECULATION_SAFE_VALUE
that can be used on targets that never have speculative execution.   

std_gimplify_va_arg_expr()

tree std_gimplify_va_arg_expr ( tree valist, tree type, gimple_seq * pre_p, gimple_seq * post_p )

extern

The "standard" implementation of va_arg: read the value from the
current (padded) address and increment by the (padded) size.   

References arg_size_in_bytes(), ARGS_GROW_DOWNWARD, build2(), build_int_cst(), build_pointer_type(), build_va_arg_indirect_ref(), build_variant_type_copy(), fb_rvalue, fold_build2, fold_build2_loc(), fold_build3, fold_build_pointer_plus, fold_build_pointer_plus_hwi, fold_convert, gcc_unreachable, get_initialized_tmp_var(), gimplify_and_add(), gimplify_expr(), input_location, integer_zerop(), is_gimple_val(), MAX_SUPPORTED_STACK_ALIGNMENT, NULL, PAD_VARARGS_DOWN, pass_va_arg_by_reference(), round_up, SET_TYPE_ALIGN, size_binop, size_int, size_zero_node, sizetype, std_gimplify_va_arg_expr(), targetm, TREE_CODE, TREE_TYPE, TYPE_ALIGN, TYPE_EMPTY_P, TYPE_MODE, TYPE_SIZE, and unshare_expr().

Referenced by std_gimplify_va_arg_expr().

targhook_float_words_big_endian()

bool targhook_float_words_big_endian ( void )

extern

References FLOAT_WORDS_BIG_ENDIAN.

targhook_words_big_endian()

bool targhook_words_big_endian ( void )

extern

Make some target macros useable by target-independent code.