osprey-gcc/gcc/stor-layout.c File Reference

#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
#include "rtl.h"
#include "tm_p.h"
#include "flags.h"
#include "function.h"
#include "expr.h"
#include "toplev.h"
#include "ggc.h"
#include "target.h"
#include "langhooks.h"
#include "regs.h"
#include "params.h"
#include "gt-stor-layout.h"

Include dependency graph for stor-layout.c:

Go to the source code of this file.

Defines

#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode)

Functions/Subroutines

static void finalize_record_size (record_layout_info)

static void finalize_type_size (tree)

static void place_union_field (record_layout_info, tree)

void debug_rli (record_layout_info)

static GTY (())

tree get_pending_sizes (void)

void put_pending_size (tree expr)

void put_pending_sizes (tree chain)

tree variable_size (tree size)

enum machine_mode mode_for_size (unsigned int size, enum mode_class class, int limit)

enum machine_mode mode_for_size_tree (tree size, enum mode_class class, int limit)

enum machine_mode smallest_mode_for_size (unsigned int size, enum mode_class class)

enum machine_mode int_mode_for_mode (enum machine_mode mode)

unsigned int get_mode_alignment (enum machine_mode mode)

static void do_type_align (tree type, tree decl)

void layout_decl (tree decl, unsigned int known_align)

void relayout_decl (tree decl)

void set_lang_adjust_rli (void(*f)(record_layout_info))

record_layout_info start_record_layout (tree t)

tree bit_from_pos (tree offset, tree bitpos)

tree byte_from_pos (tree offset, tree bitpos)

void pos_from_bit (tree *poffset, tree *pbitpos, unsigned int off_align, tree pos)

void normalize_offset (tree *poffset, tree *pbitpos, unsigned int off_align)

void normalize_rli (record_layout_info rli)

tree rli_size_unit_so_far (record_layout_info rli)

tree rli_size_so_far (record_layout_info rli)

unsigned int update_alignment_for_field (record_layout_info rli, tree field, unsigned int known_align)

void place_field (record_layout_info rli, tree field)

void compute_record_mode (tree type)

void finish_record_layout (record_layout_info rli, int free_p)

void finish_builtin_struct (tree type, const char *name, tree fields, tree align_type)

void layout_type (tree type)

tree make_signed_type (int precision)

tree make_unsigned_type (int precision)

void initialize_sizetypes (bool signed_p)

void set_sizetype (tree type)

void set_min_and_max_values_for_integral_type (tree type, int precision, bool is_unsigned)

void fixup_signed_type (tree type)

void fixup_unsigned_type (tree type)

enum machine_mode get_best_mode (int bitsize, int bitpos, unsigned int align, enum machine_mode largest_mode, int volatilep)

void get_mode_bounds (enum machine_mode mode, int sign, enum machine_mode target_mode, rtx *mmin, rtx *mmax)

Variables

tree sizetype_tab [(int) TYPE_KIND_LAST]

unsigned int maximum_field_alignment = TARGET_DEFAULT_PACK_STRUCT * BITS_PER_UNIT

unsigned int initial_max_fld_align = TARGET_DEFAULT_PACK_STRUCT

unsigned int set_alignment = 0

static int reference_types_internal = 0

void(* lang_adjust_rli )(record_layout_info)=0

Define Documentation

#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode)

Definition at line 169 of file stor-layout.c.

Function Documentation

tree bit_from_pos	(	tree	offset,
		tree	bitpos
	)

Definition at line 544 of file stor-layout.c.

References bitsize_unit_node, bitsizetype, fold_convert(), and size_binop().

tree byte_from_pos	(	tree	offset,
		tree	bitpos
	)

Definition at line 553 of file stor-layout.c.

References bitsize_unit_node, fold_convert(), size_binop(), and sizetype.

void compute_record_mode ( tree type )

Definition at line 1258 of file stor-layout.c.

References BIGGEST_ALIGNMENT, bit_position(), DECL_MODE, DECL_SIZE, GET_MODE_ALIGNMENT, GET_MODE_SIZE, host_integerp(), integer_zerop(), MEMBER_TYPE_FORCES_BLK, mode, mode_for_size_tree(), MODE_INT, simple_cst_equal(), STRICT_ALIGNMENT, TREE_CHAIN, TREE_CODE, TREE_TYPE, TYPE_ALIGN, TYPE_FIELDS, TYPE_MODE, TYPE_NO_FORCE_BLK, and TYPE_SIZE.

void debug_rli ( record_layout_info rli )

Definition at line 678 of file stor-layout.c.

static void do_type_align	(	tree	type,
		tree	decl
	)			`[inline, static]`

Definition at line 275 of file stor-layout.c.

References DECL_ALIGN, DECL_USER_ALIGN, TREE_CODE, TYPE_ALIGN, and TYPE_USER_ALIGN.

Referenced by layout_decl().

static void finalize_record_size ( record_layout_info rli ) [static]

static void finalize_type_size ( tree type ) [static]

Definition at line 1332 of file stor-layout.c.

References BITS_PER_UNIT, bitsize_unit_node, fold_convert(), GET_MODE_ALIGNMENT, mode, ROUND_TYPE_ALIGN, round_up(), size_binop(), sizetype, STRICT_ALIGNMENT, TREE_CODE, TYPE_ALIGN, TYPE_ALIGN_UNIT, TYPE_MAIN_VARIANT, TYPE_MODE, TYPE_NEXT_VARIANT, TYPE_SIZE, TYPE_SIZE_UNIT, TYPE_USER_ALIGN, and variable_size().

void finish_builtin_struct	(	tree	type,
		const char *	name,
		tree	fields,
		tree	align_type
	)

Definition at line 1445 of file stor-layout.c.

Referenced by build_ctr_info_type(), build_fn_info_type(), build_gcov_info(), build_ptrmemfunc_type(), create_pseudo_type_info(), and create_tinfo_types().

void finish_record_layout	(	record_layout_info	rli,
		int	free_p
	)

Definition at line 1413 of file stor-layout.c.

References compute_record_mode(), finalize_record_size(), finalize_type_size(), free(), layout_decl(), record_layout_info_s::pending_statics, record_layout_info_s::t, TREE_CHAIN, and TREE_VALUE.

void fixup_signed_type ( tree type )

Definition at line 1978 of file stor-layout.c.

References HOST_BITS_PER_WIDE_INT, layout_type(), set_min_and_max_values_for_integral_type(), and TYPE_PRECISION.

void fixup_unsigned_type ( tree type )

Definition at line 2000 of file stor-layout.c.

References HOST_BITS_PER_WIDE_INT, layout_type(), set_min_and_max_values_for_integral_type(), TYPE_PRECISION, and TYPE_UNSIGNED.

enum machine_mode get_best_mode	(	int	bitsize,
		int	bitpos,
		unsigned int	align,
		enum machine_mode	largest_mode,
		int	volatilep
	)

Definition at line 2035 of file stor-layout.c.

References BIGGEST_ALIGNMENT, BITS_PER_WORD, GET_CLASS_NARROWEST_MODE, GET_MODE_BITSIZE, GET_MODE_WIDER_MODE, MIN, mode, MODE_INT, and SLOW_BYTE_ACCESS.

unsigned int get_mode_alignment ( enum machine_mode mode )

Definition at line 265 of file stor-layout.c.

References BIGGEST_ALIGNMENT, BITS_PER_UNIT, MAX, MIN, and mode_base_align.

void get_mode_bounds	(	enum machine_mode	mode,
		int	sign,
		enum machine_mode	target_mode,
		rtx *	mmin,
		rtx *	mmax
	)

Definition at line 2089 of file stor-layout.c.

tree get_pending_sizes ( void )

Definition at line 88 of file stor-layout.c.

static GTY ( () ) [static]

Definition at line 74 of file stor-layout.c.

References reference_types_internal.

void initialize_sizetypes ( bool signed_p )

Definition at line 1834 of file stor-layout.c.

enum machine_mode int_mode_for_mode ( enum machine_mode mode )

Definition at line 231 of file stor-layout.c.

References gcc_unreachable, GET_MODE_BITSIZE, GET_MODE_CLASS, MODE_CC, MODE_COMPLEX_FLOAT, MODE_COMPLEX_INT, MODE_FLOAT, mode_for_size(), MODE_INT, MODE_PARTIAL_INT, MODE_RANDOM, MODE_VECTOR_FLOAT, and MODE_VECTOR_INT.

void layout_decl	(	tree	decl,
		unsigned int	known_align
	)

Definition at line 299 of file stor-layout.c.

References ADJUST_FIELD_ALIGN, BIGGEST_FIELD_ALIGNMENT, BITS_PER_UNIT, bitsize_unit_node, compare_tree_int(), DECL_ALIGN, DECL_BIT_FIELD, DECL_BIT_FIELD_TYPE, DECL_EXTERNAL, DECL_FIELD_CONTEXT, DECL_MODE, DECL_NONADDRESSABLE_P, DECL_PACKED, DECL_RTL_IF_SET, DECL_SIZE, DECL_SIZE_UNIT, DECL_UNSIGNED, DECL_USER_ALIGN, do_type_align(), EMPTY_FIELD_BOUNDARY, error_mark_node, fold_convert(), gcc_assert, GET_MODE_ALIGNMENT, GET_MODE_CLASS, integer_zerop(), larger_than_size, MAX, maximum_field_alignment, MIN, mode_for_size_tree(), MODE_INT, gcc_target::ms_bitfield_layout_p, NULL_RTX, PCC_BITFIELD_TYPE_MATTERS, PUT_MODE, SET_DECL_RTL, set_mem_attributes(), size, size_binop(), sizetype, targetm, TREE_CODE, TREE_INT_CST_LOW, TREE_TYPE, TYPE_ALIGN, TYPE_MODE, TYPE_SIZE, TYPE_SIZE_UNIT, TYPE_UNSIGNED, variable_size(), void_type_node, warn_larger_than, and warning.

void layout_type ( tree type )

Definition at line 1485 of file stor-layout.c.

References AGGREGATE_TYPE_P, BIGGEST_ALIGNMENT, BITS_PER_UNIT, bitsize_int, bitsizetype, build2, build_int_cst(), build_pointer_type(), COMPLEX_TYPE, element, element_size, error_mark_node, finalize_type_size(), finish_record_layout(), fold(), fold_convert(), FUNCTION_BOUNDARY, gcc_assert, gcc_unreachable, GET_MODE_ALIGNMENT, GET_MODE_BITSIZE, GET_MODE_CLASS, GET_MODE_INNER, GET_MODE_NUNITS, GET_MODE_SIZE, GET_MODE_WIDER_MODE, have_regs_of_mode, host_integerp(), index(), int_const_binop(), integer_one_node, integer_onep(), integer_zerop(), INTEGRAL_TYPE_P, lang_adjust_rli, length, MAX, MEMBER_TYPE_FORCES_BLK, mode, MODE_COMPLEX_FLOAT, MODE_COMPLEX_INT, MODE_FLOAT, mode_for_size(), mode_for_size_tree(), MODE_INT, nreverse(), NULL_TREE, place_field(), Pmode, POINTER_SIZE, reference_types_internal, ROUND_TYPE_ALIGN, simple_cst_equal(), size_binop(), size_int, size_one_node, size_zero_node, sizetype, smallest_mode_for_size(), start_record_layout(), STRICT_ALIGNMENT, targetm, TREE_CHAIN, TREE_CODE, tree_int_cst_sgn(), tree_low_cst(), TREE_TYPE, TYPE_ALIAS_SET, TYPE_ALIAS_SET_KNOWN_P, TYPE_ALIGN, TYPE_DOMAIN, TYPE_FIELDS, TYPE_MAX_VALUE, TYPE_MIN_VALUE, TYPE_MODE, TYPE_NO_FORCE_BLK, TYPE_PACKED, TYPE_PRECISION, TYPE_SIZE, TYPE_SIZE_UNIT, TYPE_UNSIGNED, TYPE_USER_ALIGN, TYPE_VECTOR_SUBPARTS, and gcc_target::vector_mode_supported_p.

tree make_signed_type ( int precision )

Definition at line 1807 of file stor-layout.c.

References fixup_signed_type(), make_node, and TYPE_PRECISION.

tree make_unsigned_type ( int precision )

Definition at line 1820 of file stor-layout.c.

References fixup_unsigned_type(), make_node, and TYPE_PRECISION.

enum machine_mode mode_for_size	(	unsigned int	size,
		enum mode_class	class,
		int	limit
	)

Definition at line 178 of file stor-layout.c.

References GET_CLASS_NARROWEST_MODE, GET_MODE_PRECISION, GET_MODE_WIDER_MODE, MAX_FIXED_MODE_SIZE, and mode.

enum machine_mode mode_for_size_tree	(	tree	size,
		enum mode_class	class,
		int	limit
	)

Definition at line 197 of file stor-layout.c.

References compare_tree_int(), mode_for_size(), TREE_CODE, tree_low_cst(), and TREE_OVERFLOW.

void normalize_offset	(	tree *	poffset,
		tree *	pbitpos,
		unsigned int	off_align
	)

Definition at line 577 of file stor-layout.c.

References BITS_PER_UNIT, bitsize_int, compare_tree_int(), fold_convert(), size_binop(), size_int, and sizetype.

void normalize_rli ( record_layout_info rli )

Definition at line 623 of file stor-layout.c.

References record_layout_info_s::bitpos, normalize_offset(), record_layout_info_s::offset, and record_layout_info_s::offset_align.

void place_field	(	record_layout_info	rli,
		tree	field
	)

Definition at line 787 of file stor-layout.c.

static void place_union_field	(	record_layout_info	rli,
		tree	field
	)			`[static]`

Definition at line 744 of file stor-layout.c.

References BIGGEST_ALIGNMENT, bitsize_zero_node, build3, DECL_FIELD_BIT_OFFSET, DECL_FIELD_OFFSET, DECL_QUALIFIER, DECL_SIZE_UNIT, fold(), record_layout_info_s::offset, SET_DECL_OFFSET_ALIGN, size_binop(), size_zero_node, sizetype, record_layout_info_s::t, TREE_CODE, and update_alignment_for_field().

void pos_from_bit	(	tree *	poffset,
		tree *	pbitpos,
		unsigned int	off_align,
		tree	pos
	)

Definition at line 562 of file stor-layout.c.

References BITS_PER_UNIT, bitsize_int, fold_convert(), size_binop(), size_int, and sizetype.

void put_pending_size ( tree expr )

Definition at line 99 of file stor-layout.c.

References NULL_TREE, skip_simple_arithmetic(), TREE_CODE, and tree_cons.

void put_pending_sizes ( tree chain )

Definition at line 113 of file stor-layout.c.

References gcc_assert.

void relayout_decl ( tree decl )

Definition at line 483 of file stor-layout.c.

Referenced by cp_genericize(), decl_attributes(), and require_complete_types_for_parms().

tree rli_size_so_far ( record_layout_info rli )

Definition at line 639 of file stor-layout.c.

References bit_from_pos(), record_layout_info_s::bitpos, and record_layout_info_s::offset.

tree rli_size_unit_so_far ( record_layout_info rli )

Definition at line 631 of file stor-layout.c.

References record_layout_info_s::bitpos, byte_from_pos(), and record_layout_info_s::offset.

void set_lang_adjust_rli ( void(*)(record_layout_info) f )

Definition at line 499 of file stor-layout.c.

void set_min_and_max_values_for_integral_type	(	tree	type,
		int	precision,
		bool	is_unsigned
	)

Definition at line 1926 of file stor-layout.c.

Referenced by finish_enum(), fixup_signed_type(), fixup_unsigned_type(), and initialize_sizetypes().

void set_sizetype ( tree type )

Definition at line 1863 of file stor-layout.c.

References BITS_PER_UNIT_LOG, bitsizetype, build_distinct_type_copy(), fixup_signed_type(), fixup_unsigned_type(), gcc_assert, get_identifier(), HOST_BITS_PER_WIDE_INT, make_node, make_signed_type(), memcpy, MIN, sbitsizetype, sizetype, ssizetype, tree_size(), TREE_TYPE, TYPE_CACHED_VALUES, TYPE_CACHED_VALUES_P, TYPE_IS_SIZETYPE, TYPE_MAIN_VARIANT, TYPE_NAME, TYPE_PRECISION, TYPE_UID, and TYPE_UNSIGNED.

enum machine_mode smallest_mode_for_size	(	unsigned int	size,
		enum mode_class	class
	)

Definition at line 214 of file stor-layout.c.

References gcc_unreachable, GET_CLASS_NARROWEST_MODE, GET_MODE_PRECISION, GET_MODE_WIDER_MODE, and mode.

unsigned int update_alignment_for_field	(	record_layout_info	rli,
		tree	field,
		unsigned int	known_align
	)

Definition at line 650 of file stor-layout.c.

tree variable_size ( tree size )

Definition at line 123 of file stor-layout.c.

References cfun, CONTAINS_PLACEHOLDER_P, error(), put_pending_size(), save, save_expr(), size_one_node, skip_simple_arithmetic(), and TREE_CONSTANT.

Variable Documentation

unsigned int initial_max_fld_align = TARGET_DEFAULT_PACK_STRUCT

Definition at line 52 of file stor-layout.c.

Referenced by common_handle_option(), layout_decl(), and update_alignment_for_field().

void(* lang_adjust_rli)(record_layout_info)=0

Referenced by layout_type(), and set_lang_adjust_rli().

unsigned int maximum_field_alignment = TARGET_DEFAULT_PACK_STRUCT * BITS_PER_UNIT

Definition at line 50 of file stor-layout.c.

int reference_types_internal = 0 [static]

Definition at line 61 of file stor-layout.c.

unsigned int set_alignment = 0

Definition at line 56 of file stor-layout.c.

tree sizetype_tab[(int) TYPE_KIND_LAST]

Definition at line 46 of file stor-layout.c.


Defines
#define	MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode)
Functions/Subroutines
static void	finalize_record_size (record_layout_info)
static void	finalize_type_size (tree)
static void	place_union_field (record_layout_info, tree)
void	debug_rli (record_layout_info)
static	GTY (())
tree	get_pending_sizes (void)
void	put_pending_size (tree expr)
void	put_pending_sizes (tree chain)
tree	variable_size (tree size)
enum machine_mode	mode_for_size (unsigned int size, enum mode_class class, int limit)
enum machine_mode	mode_for_size_tree (tree size, enum mode_class class, int limit)
enum machine_mode	smallest_mode_for_size (unsigned int size, enum mode_class class)
enum machine_mode	int_mode_for_mode (enum machine_mode mode)
unsigned int	get_mode_alignment (enum machine_mode mode)
static void	do_type_align (tree type, tree decl)
void	layout_decl (tree decl, unsigned int known_align)
void	relayout_decl (tree decl)
void	set_lang_adjust_rli (void(*f)(record_layout_info))
record_layout_info	start_record_layout (tree t)
tree	bit_from_pos (tree offset, tree bitpos)
tree	byte_from_pos (tree offset, tree bitpos)
void	pos_from_bit (tree poffset, tree pbitpos, unsigned int off_align, tree pos)
void	normalize_offset (tree poffset, tree pbitpos, unsigned int off_align)
void	normalize_rli (record_layout_info rli)
tree	rli_size_unit_so_far (record_layout_info rli)
tree	rli_size_so_far (record_layout_info rli)
unsigned int	update_alignment_for_field (record_layout_info rli, tree field, unsigned int known_align)
void	place_field (record_layout_info rli, tree field)
void	compute_record_mode (tree type)
void	finish_record_layout (record_layout_info rli, int free_p)
void	finish_builtin_struct (tree type, const char *name, tree fields, tree align_type)
void	layout_type (tree type)
tree	make_signed_type (int precision)
tree	make_unsigned_type (int precision)
void	initialize_sizetypes (bool signed_p)
void	set_sizetype (tree type)
void	set_min_and_max_values_for_integral_type (tree type, int precision, bool is_unsigned)
void	fixup_signed_type (tree type)
void	fixup_unsigned_type (tree type)
enum machine_mode	get_best_mode (int bitsize, int bitpos, unsigned int align, enum machine_mode largest_mode, int volatilep)
void	get_mode_bounds (enum machine_mode mode, int sign, enum machine_mode target_mode, rtx mmin, rtx mmax)
Variables
tree	sizetype_tab [(int) TYPE_KIND_LAST]
unsigned int	maximum_field_alignment = TARGET_DEFAULT_PACK_STRUCT * BITS_PER_UNIT
unsigned int	initial_max_fld_align = TARGET_DEFAULT_PACK_STRUCT
unsigned int	set_alignment = 0
static int	reference_types_internal = 0
void(*	lang_adjust_rli )(record_layout_info)=0