read-rtl.cc File Reference

#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "rtl.h"
#include "obstack.h"
#include "read-md.h"
#include "gensupport.h"

Include dependency graph for read-rtl.cc:

Data Structures
struct	map_value
struct	mapping
struct	iterator_group
struct	iterator_use
struct	attribute_use
struct	subst_attr_to_iter_mapping
struct	compact_insn_name

Functions
static void	validate_const_int (const char *)
static void	one_time_initialization (void)
HOST_WIDE_INT	atoll (const char *)
static HOST_WIDE_INT	find_mode (const char *name)
static void	apply_mode_iterator (rtx x, unsigned int, HOST_WIDE_INT mode)
static const char *	get_mode_token (int mode)
static rtx_code	maybe_find_code (const char *name)
static HOST_WIDE_INT	find_code (const char *name)
static void	apply_code_iterator (rtx x, unsigned int, HOST_WIDE_INT code)
static const char *	get_code_token (int code)
static HOST_WIDE_INT	find_int (const char *name)
static void	apply_int_iterator (rtx x, unsigned int index, HOST_WIDE_INT value)
static const char *	get_int_token (int value)
static char *	find_subst_iter_by_attr (const char *attr)
static struct map_value *	map_attr_string (file_location loc, const char *p, mapping **iterator_out=0)
static struct mapping *	add_mapping (struct iterator_group *group, htab_t table, const char *name)
static struct map_value **	add_map_value (struct map_value **end_ptr, int number, const char *string)
static void	initialize_iterators (void)
static void	validate_const_wide_int (const char *string)
static void	record_iterator_use (struct mapping *iterator, rtx x, unsigned int index)
static void	record_attribute_use (struct iterator_group *group, file_location loc, rtx x, unsigned int index, const char *value)
static void	read_flags (rtx return_rtx)
static int	parse_reg_note_name (const char *string)

Variables
htab_t	subst_attr_to_iter_map = NULL
const char *	current_iterator_name
rtx_reader *	rtx_reader_ptr = NULL
static struct iterator_group modes codes ints	substs
static vec< mapping * >	current_iterators
static vec< iterator_use >	iterator_uses
static vec< attribute_use >	attribute_uses
static const compact_insn_name	compact_insn_names []

Function Documentation

add_map_value()

static struct map_value ** add_map_value ( struct map_value ** end_ptr, int number, const char * string )

static

Add the pair (NUMBER, STRING) to a list of map_value structures.
END_PTR points to the current null terminator for the list; return
a pointer the new null terminator.   

References map_value::next, map_value::number, and map_value::string.

Referenced by initialize_iterators().

add_mapping()

static struct mapping * add_mapping ( struct iterator_group * group, htab_t table, const char * name )

static

Add a new "mapping" structure to hashtable TABLE.  NAME is the name
of the mapping and GROUP is the group to which it belongs.   

References mapping::current_value, fatal_with_file_and_line(), mapping::group, mapping::name, NULL, table, and mapping::values.

Referenced by initialize_iterators().

apply_code_iterator()

static void apply_code_iterator ( rtx x, unsigned int , HOST_WIDE_INT code )

static

References PUT_CODE.

Referenced by initialize_iterators().

apply_int_iterator()

static void apply_int_iterator ( rtx x, unsigned int index, HOST_WIDE_INT value )

static

References gcc_assert, gcc_unreachable, GET_CODE, GET_RTX_FORMAT, RTX_CODE, SUBREG_BYTE, md_constant::value, XINT, XLOC, and XWINT.

Referenced by initialize_iterators().

apply_mode_iterator()

static void apply_mode_iterator ( rtx x, unsigned int , HOST_WIDE_INT mode )

static

References PUT_MODE().

Referenced by initialize_iterators().

atoll()

HOST_WIDE_INT atoll

(

const char *

p

)

Provide a version of a function to read a long long if the system does
not provide one.   

References HOST_WIDE_INT_M1U.

Referenced by find_int().

find_code()

static HOST_WIDE_INT find_code ( const char * name )

static

Implementations of the iterator_group callbacks for codes.   

References fatal_with_file_and_line(), and maybe_find_code().

Referenced by initialize_iterators().

find_int()

static HOST_WIDE_INT find_int ( const char * name )

static

Implementations of the iterator_group callbacks for ints.   

Since GCC does not construct a table of valid constants,
we have to accept any int as valid.  No cross-checking can
be done.   

References atoll(), md_constant::name, rtx_reader_ptr, and validate_const_int().

Referenced by initialize_iterators().

find_mode()

static HOST_WIDE_INT find_mode ( const char * name )

static

Implementations of the iterator_group callbacks for modes.   

References fatal_with_file_and_line(), GET_MODE_NAME, and i.

find_subst_iter_by_attr()

static char * find_subst_iter_by_attr ( const char * attr )

static

Return name of a subst-iterator, corresponding to subst-attribute ATTR.   

References subst_attr_to_iter_mapping::iter_name, NULL, and subst_attr_to_iter_map.

Referenced by map_attr_string(), and rtx_reader::read_rtx_operand().

get_code_token()

static const char * get_code_token ( int code )

static

References GET_RTX_NAME, and i.

Referenced by initialize_iterators().

get_int_token()

static const char * get_int_token ( int value )

static

References HOST_BITS_PER_INT, and md_constant::value.

Referenced by initialize_iterators().

get_mode_token()

static const char * get_mode_token ( int mode )

static

References GET_MODE_NAME, and NULL.

Referenced by initialize_iterators().

initialize_iterators()

static void initialize_iterators ( void )

static

Do one-time initialization of the mode and code attributes.   

References add_map_value(), add_mapping(), apply_code_iterator(), apply_int_iterator(), apply_mode_iterator(), find_code(), find_int(), find_mode(), get_code_token(), get_int_token(), GET_MODE_NAME, get_mode_token(), GET_RTX_NAME, i, leading_string_eq_p(), leading_string_hash(), lower(), modes, NUM_RTX_CODE, substs, and mapping::values.

Referenced by one_time_initialization().

map_attr_string()

static struct map_value * map_attr_string ( file_location loc, const char * p, mapping ** iterator_out = 0 )

static

Map attribute string P to its current value.  Return null if the attribute
isn't known.  If ITERATOR_OUT is nonnull, store the associated iterator
there.  Report any errors against location LOC.   

References current_iterators, error_at(), find_subst_iter_by_attr(), FOR_EACH_VEC_ELT, i, mapping::name, map_value::next, NULL, map_value::number, map_value::string, substs, and mapping::values.

Referenced by md_reader::apply_iterator_to_string().

maybe_find_code()

static rtx_code maybe_find_code ( const char * name )

static

Return the rtx code for NAME, or UNKNOWN if NAME isn't a valid rtx code.   

References compact_insn_names, GET_RTX_NAME, i, and NUM_RTX_CODE.

Referenced by find_code().

one_time_initialization()

static void one_time_initialization ( void )

static

Do one-time initialization.   

References initialize_iterators(), and initialized.

Referenced by rtx_reader::rtx_reader().

parse_reg_note_name()

static int parse_reg_note_name ( const char * string )

static

Return the numeric value n for GET_REG_NOTE_NAME (n) for STRING,
or fail if STRING isn't recognized.   

References fatal_with_file_and_line(), GET_REG_NOTE_NAME, i, and REG_NOTE_MAX.

Referenced by rtx_reader::read_rtx_code().

read_flags()

static void read_flags ( rtx return_rtx )

static

Subroutine of read_rtx_code, for parsing zero or more flags.   

References fatal_with_file_and_line(), read_char(), RTX_FLAG, and unread_char().

Referenced by rtx_reader::read_rtx_code().

record_attribute_use()

static void record_attribute_use ( struct iterator_group * group, file_location loc, rtx x, unsigned int index, const char * value )

static

Record that X uses attribute VALUE at location LOC, where VALUE must
match a built-in value from group GROUP.  If the use is in an operand
of X, INDEX is the index of that operand, otherwise it is ignored.   

References attribute_uses, attribute_use::group, attribute_use::index, attribute_use::loc, attribute_use::value, and attribute_use::x.

Referenced by md_reader::record_potential_iterator_use(), and rtx_reader::rtx_alloc_for_name().

record_iterator_use()

static void record_iterator_use ( struct mapping * iterator, rtx x, unsigned int index )

static

Record that X uses iterator ITERATOR.  If the use is in an operand
of X, INDEX is the index of that operand, otherwise it is ignored.   

References iterator_use::index, iterator_uses, and iterator_use::x.

Referenced by rtx_reader::read_rtx_operand(), md_reader::record_potential_iterator_use(), and rtx_reader::rtx_alloc_for_name().

validate_const_int()

static void validate_const_int ( const char * string )

static

References fatal_with_file_and_line(), and md_name::string.

Referenced by find_int(), and rtx_reader::read_rtx_operand().

validate_const_wide_int()

static void validate_const_wide_int ( const char * string )

static

References fatal_with_file_and_line(), and md_name::string.

Referenced by rtx_reader::read_rtx_code().

Variable Documentation

attribute_uses

vec<attribute_use> attribute_uses

static

The list of all attribute uses in the current rtx.   

Referenced by record_attribute_use().

compact_insn_names

const compact_insn_name compact_insn_names[]

static

Initial value:

= {
  { DEBUG_INSN, "cdebug_insn" },
  { INSN, "cinsn" },
  { JUMP_INSN, "cjump_insn" },
  { CALL_INSN, "ccall_insn" },
  { JUMP_TABLE_DATA, "cjump_table_data" },
  { BARRIER, "cbarrier" },
  { CODE_LABEL, "clabel" },
  { NOTE, "cnote" }
}

Referenced by maybe_find_code().

current_iterator_name

const char* current_iterator_name

This global stores name of subst-iterator which is currently being
processed.   

current_iterators

vec<mapping *> current_iterators

static

All iterators used in the current rtx.   

Referenced by map_attr_string().

iterator_uses

vec<iterator_use> iterator_uses

static

The list of all iterator uses in the current rtx.   

Referenced by record_iterator_use().

rtx_reader_ptr

rtx_reader* rtx_reader_ptr = NULL

Global singleton.   

Referenced by alter_test_for_insn(), attr_string(), def_target_insn(), emit_c_code(), find_int(), gen_attr(), gen_mnemonic_attr(), gen_mnemonic_setattr(), main(), mnemonic_htab_callback(), print_test(), process_rtx(), process_substs_on_one_elem(), process_template(), rtx_reader::rtx_reader(), write_attr_value(), write_init_reg_class_start_regs(), write_one_condition(), write_predicate_expr(), write_predicate_subfunction(), write_test_expr(), and rtx_reader::~rtx_reader().

subst_attr_to_iter_map

htab_t subst_attr_to_iter_map = NULL

Hash-table to store links between subst-attributes and
define_substs.   

Referenced by find_subst_iter_by_attr().

substs

struct iterator_group modes codes ints substs

static

The mode and code iterator structures.   

Referenced by initialize_iterators(), map_attr_string(), and rtx_reader::read_rtx_operand().