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Functions
bool	default_legitimate_address_p (enum machine_mode, rtx, bool)
void	default_external_libcall (rtx)
rtx	default_legitimize_address (rtx, rtx, enum machine_mode)
int	default_unspec_may_trap_p (const_rtx, unsigned)
enum machine_mode	default_promote_function_mode (const_tree, enum machine_mode, int *, const_tree, int)
enum machine_mode	default_promote_function_mode_always_promote (const_tree, enum machine_mode, int *, const_tree, int)
enum machine_mode	default_cc_modes_compatible (enum machine_mode, enum 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, enum machine_mode, tree, int *, int)
rtx	default_builtin_setjmp_frame_value (void)
bool	default_pretend_outgoing_varargs_named (cumulative_args_t)
enum machine_mode	default_eh_return_filter_mode (void)
enum machine_mode	default_libgcc_cmp_return_mode (void)
enum machine_mode	default_libgcc_shift_count_mode (void)
enum machine_mode	default_unwind_word_mode (void)
unsigned HOST_WIDE_INT	default_shift_truncation_mask (enum machine_mode)
unsigned int	default_min_divisions_for_recip_mul (enum machine_mode)
int	default_mode_rep_extended (enum machine_mode, enum machine_mode)
tree	default_stack_protect_guard (void)
tree	default_external_stack_protect_fail (void)
tree	default_hidden_stack_protect_fail (void)
enum machine_mode	default_mode_for_suffix (char)
tree	default_cxx_guard_type (void)
tree	default_cxx_get_cookie_size (tree)
bool	hook_pass_by_reference_must_pass_in_stack (cumulative_args_t, enum machine_mode mode, const_tree, bool)
bool	hook_callee_copies_named (cumulative_args_t ca, enum machine_mode, const_tree, bool)
void	default_print_operand (FILE *, rtx, int)
void	default_print_operand_address (FILE *, rtx)
bool	default_print_operand_punct_valid_p (unsigned char)
tree	default_mangle_assembler_name (const char *)
bool	default_scalar_mode_supported_p (enum machine_mode)
bool	targhook_words_big_endian (void)
bool	targhook_float_words_big_endian (void)
bool	default_decimal_float_supported_p (void)
bool	default_fixed_point_supported_p (void)
bool	default_has_ifunc_p (void)
const char *	default_invalid_within_doloop (const_rtx)
tree	default_builtin_vectorized_function (tree, tree, tree)
tree	default_builtin_vectorized_conversion (unsigned int, tree, tree)
int	default_builtin_vectorization_cost (enum vect_cost_for_stmt, tree, int)
tree	default_builtin_reciprocal (unsigned int, bool, bool)
HOST_WIDE_INT	default_vector_alignment (const_tree)
bool	default_builtin_vector_alignment_reachable (const_tree, bool)
bool	default_builtin_support_vector_misalignment (enum machine_mode mode, const_tree, int, bool)
enum machine_mode	default_preferred_simd_mode (enum machine_mode mode)
unsigned int	default_autovectorize_vector_sizes (void)
void *	default_init_cost (struct loop *)
unsigned	default_add_stmt_cost (void , int, enum vect_cost_for_stmt, struct _stmt_vec_info , int, enum vect_cost_model_location)
void	default_finish_cost (void , unsigned , unsigned , unsigned )
void	default_destroy_cost_data (void *)
bool	hook_bool_CUMULATIVE_ARGS_false (cumulative_args_t)
bool	hook_bool_CUMULATIVE_ARGS_true (cumulative_args_t)
bool	hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false (cumulative_args_t, enum machine_mode, const_tree, bool)
bool	hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true (cumulative_args_t, enum machine_mode, const_tree, bool)
int	hook_int_CUMULATIVE_ARGS_mode_tree_bool_0 (cumulative_args_t, enum machine_mode, tree, bool)
const char *	hook_invalid_arg_for_unprototyped_fn (const_tree, const_tree, const_tree)
void	default_function_arg_advance (cumulative_args_t, enum machine_mode, const_tree, bool)
rtx	default_function_arg (cumulative_args_t, enum machine_mode, const_tree, bool)
rtx	default_function_incoming_arg (cumulative_args_t, enum machine_mode, const_tree, bool)
unsigned int	default_function_arg_boundary (enum machine_mode, const_tree)
unsigned int	default_function_arg_round_boundary (enum machine_mode, const_tree)
bool	hook_bool_const_rtx_commutative_p (const_rtx, int)
rtx	default_function_value (const_tree, const_tree, bool)
rtx	default_libcall_value (enum 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)
int	default_return_pops_args (tree, tree, int)
reg_class_t	default_branch_target_register_class (void)
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, enum machine_mode, secondary_reload_info *)
void	default_target_option_override (void)
void	hook_void_bitmap (bitmap)
int	default_reloc_rw_mask (void)
tree	default_mangle_decl_assembler_name (tree, tree)
tree	default_emutls_var_fields (tree, tree *)
tree	default_emutls_var_init (tree, tree, tree)
bool	default_hard_regno_scratch_ok (unsigned int)
bool	default_mode_dependent_address_p (const_rtx, addr_space_t)
bool	default_target_option_valid_attribute_p (tree, tree, tree, int)
bool	default_target_option_pragma_parse (tree, tree)
bool	default_target_can_inline_p (tree, tree)
bool	default_valid_pointer_mode (enum machine_mode)
bool	default_ref_may_alias_errno (struct ao_ref_s *)
enum machine_mode	default_addr_space_pointer_mode (addr_space_t)
enum machine_mode	default_addr_space_address_mode (addr_space_t)
bool	default_addr_space_valid_pointer_mode (enum machine_mode, addr_space_t)
bool	default_addr_space_legitimate_address_p (enum machine_mode, rtx, bool, addr_space_t)
rtx	default_addr_space_legitimize_address (rtx, rtx, enum machine_mode, addr_space_t)
bool	default_addr_space_subset_p (addr_space_t, addr_space_t)
rtx	default_addr_space_convert (rtx, tree, tree)
unsigned int	default_case_values_threshold (void)
bool	default_have_conditional_execution (void)
bool	default_libc_has_function (enum function_class)
bool	no_c99_libc_has_function (enum function_class)
bool	gnu_libc_has_function (enum function_class)
tree	default_builtin_tm_load_store (tree)
int	default_memory_move_cost (enum machine_mode, reg_class_t, bool)
int	default_register_move_cost (enum machine_mode, reg_class_t, reg_class_t)
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, enum machine_mode)
enum unwind_info_type	default_debug_unwind_info (void)
void	default_canonicalize_comparison (int , rtx , rtx *, bool)
int	default_label_align_after_barrier_max_skip (rtx)
int	default_loop_align_max_skip (rtx)
int	default_label_align_max_skip (rtx)
int	default_jump_align_max_skip (rtx)
section *	default_function_section (tree decl, enum node_frequency freq, bool startup, bool exit)
enum machine_mode	default_get_reg_raw_mode (int)
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 *)
enum machine_mode	default_cstore_mode (enum insn_code)
bool	default_member_type_forces_blk (const_tree, enum machine_mode)

Function Documentation

unsigned default_add_stmt_cost	(	void *	data,
		int	count,
		enum vect_cost_for_stmt	kind,
		struct _stmt_vec_info *	stmt_info,
		int	misalign,
		enum vect_cost_model_location	where
	)

By default, the cost model looks up the cost of the given statement
   kind and mode, multiplies it by the occurrence count, accumulates
   it into the cost specified by WHERE, and returns the cost added.

References default_builtin_vectorization_cost(), stmt_cost(), stmt_in_inner_loop_p(), stmt_vectype(), and vect_body.

enum machine_mode default_addr_space_address_mode ( addr_space_t )

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

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

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

Named address space version of legitimate_address_p.

References targetm.

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

Named address space version of LEGITIMIZE_ADDRESS.

References targetm.

enum machine_mode default_addr_space_pointer_mode ( addr_space_t )

bool default_addr_space_subset_p	(	addr_space_t	,
		addr_space_t
	)

bool default_addr_space_valid_pointer_mode	(	enum	machine_mode,
		addr_space_t
	)

void default_asm_output_ident_directive ( const char * )

unsigned int default_autovectorize_vector_sizes ( void )

By default only the size derived from the preferred vector mode
   is tried.

reg_class_t default_branch_target_register_class ( void )

tree default_builtin_reciprocal	(	unsigned int	fn,
		bool	md_fn,
		bool	sqrt
	)

Reciprocal.

rtx default_builtin_setjmp_frame_value ( void )

The default implementation of TARGET_BUILTIN_SETJMP_FRAME_VALUE.

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

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().

tree default_builtin_tm_load_store ( tree )

bool default_builtin_vector_alignment_reachable	(	const_tree	,
		bool
	)

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

Default vectorizer cost model values.

References cond_branch_not_taken, cond_branch_taken, scalar_load, scalar_stmt, scalar_store, scalar_to_vec, unaligned_load, unaligned_store, vec_construct, vec_perm, vec_promote_demote, vec_to_scalar, vector_load, vector_stmt, and vector_store.

Referenced by default_add_stmt_cost().

tree default_builtin_vectorized_conversion	(	unsigned int	code,
		tree	dest_type,
		tree	src_type
	)

Vectorized conversion.

tree default_builtin_vectorized_function	(	tree	fndecl,
		tree	type_out,
		tree	type_in
	)

Mapping of builtin functions to vectorized variants.

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

unsigned int default_case_values_threshold ( void )

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.

enum machine_mode default_cc_modes_compatible	(	enum	machine_mode,
		enum	machine_mode
	)

bool default_class_likely_spilled_p ( reg_class_t )

unsigned char default_class_max_nregs	(	reg_class_t	rclass,
		enum machine_mode	mode
	)

The default implementation of TARGET_CLASS_MAX_NREGS.

enum machine_mode default_cstore_mode ( enum insn_code )

tree default_cxx_get_cookie_size ( tree )

tree default_cxx_guard_type ( void )

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

enum unwind_info_type default_debug_unwind_info ( void )

Determine the debugging unwind mechanism for the target.

References DWARF2_DEBUG, UI_DWARF2, UI_NONE, and VMS_AND_DWARF2_DEBUG.

bool default_decimal_float_supported_p ( void )

True if the target supports decimal floating point.

void default_destroy_cost_data ( void * )

bool default_different_addr_displacement_p ( void )

enum machine_mode default_eh_return_filter_mode ( void )

References targetm.

tree default_emutls_var_fields	(	tree	,
		tree *
	)

tree default_emutls_var_init	(	tree	,
		tree	,
		tree
	)

rtx default_expand_builtin_saveregs ( void )

References error().

void default_external_libcall ( rtx )

tree default_external_stack_protect_fail ( void )

References build_call_expr(), build_function_type_list(), get_identifier(), stack_chk_fail_decl, and VISIBILITY_DEFAULT.

Referenced by default_hidden_stack_protect_fail().

void default_finish_cost	(	void *	data,
		unsigned *	prologue_cost,
		unsigned *	body_cost,
		unsigned *	epilogue_cost
	)

By default, the cost model just returns the accumulated costs.

References vect_body, vect_epilogue, and vect_prologue.

bool default_fixed_point_supported_p ( void )

True if the target supports fixed-point arithmetic.

rtx default_function_arg	(	cumulative_args_t	,
		enum	machine_mode,
		const_tree	,
		bool
	)

void default_function_arg_advance	(	cumulative_args_t	,
		enum	machine_mode,
		const_tree	,
		bool
	)

unsigned int default_function_arg_boundary	(	enum	machine_mode,
		const_tree
	)

unsigned int default_function_arg_round_boundary	(	enum	machine_mode,
		const_tree
	)

rtx default_function_incoming_arg	(	cumulative_args_t	,
		enum	machine_mode,
		const_tree	,
		bool
	)

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

Choose named function section based on its frequency.

References get_named_text_section(), NODE_FREQUENCY_HOT, and NODE_FREQUENCY_UNLIKELY_EXECUTED.

rtx default_function_value	(	const_tree	,
		const_tree	,
		bool
	)

bool default_function_value_regno_p ( const unsigned int )

void* default_get_pch_validity ( size_t * )

enum machine_mode default_get_reg_raw_mode ( int )

bool default_hard_regno_scratch_ok ( unsigned int )

bool default_has_ifunc_p ( void )

True if the target supports GNU indirect functions.

bool default_have_conditional_execution ( void )

tree default_hidden_stack_protect_fail ( void )

References build_call_expr(), build_function_type_list(), default_external_stack_protect_fail(), get_identifier(), stack_chk_fail_decl, and VISIBILITY_HIDDEN.

void* default_init_cost ( struct loop * )

rtx default_internal_arg_pointer ( void )

References copy_to_reg().

const char* default_invalid_within_doloop ( const_rtx )

int default_jump_align_max_skip ( rtx )

int default_label_align_after_barrier_max_skip ( rtx )

int default_label_align_max_skip ( rtx )

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

@verbatim Default target hook functions.

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/.

@verbatim Default target hook functions.

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/.

The migration of target macros to target hooks works as follows:

   1. Create a target hook that uses the existing target macros to
      implement the same functionality.

   2. Convert all the MI files to use the hook instead of the macro.

   3. Repeat for a majority of the remaining target macros.  This will
      take some time.

   4. Tell target maintainers to start migrating.

   5. Eventually convert the backends to override the hook instead of
      defining the macros.  This will take some time too.

   6. TBD when, poison the macros.  Unmigrated targets will break at
      this point.

   Note that we expect steps 1-3 to be done by the people that
   understand what the MI does with each macro, and step 5 to be done
   by the target maintainers for their respective targets.

   Note that steps 1 and 2 don't have to be done together, but no
   target can override the new hook until step 2 is complete for it.

   Once the macros are poisoned, we will revert to the old migration
   rules - migrate the macro, callers, and targets all at once.  This
   comment can thus be removed at that point.

rtx default_legitimize_address	(	rtx	,
		rtx	,
		enum	machine_mode
	)

bool default_libc_has_function ( enum function_class )

rtx default_libcall_value	(	enum	machine_mode,
		const_rtx
	)

enum machine_mode default_libgcc_cmp_return_mode ( void )

References word_mode.

enum machine_mode default_libgcc_shift_count_mode ( void )

References word_mode.

int default_loop_align_max_skip ( rtx )

bool default_lra_p ( void )

tree default_mangle_assembler_name ( const char * )

tree default_mangle_decl_assembler_name	(	tree	decl,
		tree	id
	)

By default, do no modification.

bool default_member_type_forces_blk	(	const_tree	,
		enum	machine_mode
	)

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

Compute cost of moving registers to/from memory.

References memory_move_secondary_cost().

unsigned int default_min_divisions_for_recip_mul ( enum machine_mode )

bool default_mode_dependent_address_p	(	const_rtx	addr,
		addr_space_t	addrspace
	)

The default implementation of TARGET_MODE_DEPENDENT_ADDRESS_P.

enum machine_mode default_mode_for_suffix ( char )

int default_mode_rep_extended	(	enum machine_mode	mode,
		enum machine_mode	mode_rep
	)

The default implementation of TARGET_MODE_REP_EXTENDED.

const char* default_pch_valid_p	(	const void *	,
		size_t
	)

reg_class_t default_preferred_output_reload_class	(	rtx	x,
		reg_class_t	rclass
	)

The default implementation of TARGET_OUTPUT_PREFERRED_RELOAD_CLASS.

reg_class_t default_preferred_reload_class	(	rtx	x,
		reg_class_t	rclass
	)

The default implementation of TARGET_PREFERRED_RELOAD_CLASS.

reg_class_t default_preferred_rename_class ( reg_class_t rclass )

enum machine_mode default_preferred_simd_mode ( enum machine_mode mode )

bool default_pretend_outgoing_varargs_named ( cumulative_args_t )

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

Emit to STREAM the assembler syntax for insn operand X.

void default_print_operand_address	(	FILE *	stream,
		rtx	x
	)

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

bool default_print_operand_punct_valid_p ( unsigned char )

bool default_profile_before_prologue ( void )

enum machine_mode default_promote_function_mode	(	const_tree	,
		enum	machine_mode,
		int *	,
		const_tree	,
		int
	)

References promote_mode().

enum machine_mode default_promote_function_mode_always_promote	(	const_tree	,
		enum	machine_mode,
		int *	,
		const_tree	,
		int
	)

References promote_mode().

bool default_ref_may_alias_errno ( struct ao_ref_s * )

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

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

int default_register_priority ( int )

bool default_register_usage_leveling_p ( void )

int default_reloc_rw_mask ( void )

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

bool default_return_in_memory	(	const_tree	,
		const_tree
	)

int default_return_pops_args	(	tree	,
		tree	,
		int
	)

bool default_scalar_mode_supported_p ( enum machine_mode )

reg_class_t default_secondary_reload	(	bool	,
		rtx	,
		reg_class_t	,
		enum	machine_mode,
		secondary_reload_info *
	)

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

void default_setup_incoming_varargs	(	cumulative_args_t	,
		enum	machine_mode,
		tree	,
		int *	,
		int
	)

Referenced by default_pretend_outgoing_varargs_named().

unsigned HOST_WIDE_INT default_shift_truncation_mask ( enum machine_mode )

tree default_stack_protect_guard ( void )

References get_identifier(), and stack_chk_guard_decl.

rtx default_static_chain	(	const_tree	,
		bool
	)

bool default_target_can_inline_p	(	tree	,
		tree
	)

void default_target_option_override ( void )

bool default_target_option_pragma_parse	(	tree	,
		tree
	)

bool default_target_option_valid_attribute_p	(	tree	,
		tree	,
		tree	,
		int
	)

void default_trampoline_init	(	rtx	,
		tree	,
		rtx
	)

int default_unspec_may_trap_p	(	const_rtx	,
		unsigned
	)

enum machine_mode default_unwind_word_mode ( void )

References word_mode.

bool default_valid_pointer_mode ( enum machine_mode )

HOST_WIDE_INT default_vector_alignment ( const_tree )

bool gnu_libc_has_function ( enum function_class )

bool hook_bool_const_rtx_commutative_p	(	const_rtx	,
		int
	)

bool hook_bool_CUMULATIVE_ARGS_false ( cumulative_args_t )

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.

bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false	(	cumulative_args_t	,
		enum	machine_mode,
		const_tree	,
		bool
	)

bool hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true	(	cumulative_args_t	,
		enum	machine_mode,
		const_tree	,
		bool
	)

bool hook_bool_CUMULATIVE_ARGS_true ( cumulative_args_t )

bool hook_callee_copies_named	(	cumulative_args_t	ca,
		enum machine_mode	mode,
		const_tree	type,
		bool	named
	)

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

int hook_int_CUMULATIVE_ARGS_mode_tree_bool_0	(	cumulative_args_t	,
		enum	machine_mode,
		tree	,
		bool
	)

const char* hook_invalid_arg_for_unprototyped_fn	(	const_tree	,
		const_tree	,
		const_tree
	)

bool hook_pass_by_reference_must_pass_in_stack	(	cumulative_args_t	c,
		enum machine_mode	mode,
		const_tree	type,
		bool	named_arg
	)

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.

void hook_void_bitmap ( bitmap )

bool no_c99_libc_has_function ( enum function_class )

bool targhook_float_words_big_endian ( void )

bool targhook_words_big_endian ( void )

Make some target macros useable by target-independent code.

Functions

Function Documentation