lto_location_cache Class Reference

#include <lto-streamer.h>

Collaboration diagram for lto_location_cache:

Data Structures
struct	cached_location

Public Member Functions
bool	apply_location_cache ()
void	accept_location_cache ()
void	revert_location_cache ()
void	input_location (location_t *loc, struct bitpack_d *bp, class data_in *data_in)
void	input_location_and_block (location_t *loc, struct bitpack_d *bp, class lto_input_block *ib, class data_in *data_in)
	lto_location_cache ()
	~lto_location_cache ()

Static Public Attributes
static lto_location_cache *	current_cache

Static Private Member Functions
static int	cmp_loc (const void *pa, const void *pb)

Private Attributes
auto_vec< cached_location >	loc_cache
int	accepted_length
const char *	current_file
int	current_line
int	current_col
bool	current_sysp
location_t	current_loc
tree	current_block
unsigned	current_discr

Detailed Description

The location cache holds expanded locations for streamed in trees.
This is done to reduce memory usage of libcpp linemap that strongly prefers
locations to be inserted in the source order.   

Constructor & Destructor Documentation

lto_location_cache()

lto_location_cache::lto_location_cache ( )

inline

References current_cache, and gcc_assert.

~lto_location_cache()

lto_location_cache::~lto_location_cache ( )

inline

References apply_location_cache(), current_cache, gcc_assert, and NULL.

Member Function Documentation

accept_location_cache()

void lto_location_cache::accept_location_cache

(

)

Tree merging did not succeed; mark all changes in the cache as accepted.   

References accepted_length, current_cache, gcc_assert, and loc_cache.

apply_location_cache()

bool lto_location_cache::apply_location_cache

(

)

Apply all changes in location cache.  Add locations into linemap and patch
trees.   

References accepted_length, lto_location_cache::cached_location::block, BUILTINS_LOCATION, cmp_loc(), lto_location_cache::cached_location::col, current_block, current_col, current_discr, current_file, current_line, current_loc, lto_location_cache::cached_location::discr, lto_location_cache::cached_location::file, gcc_assert, ggc_alloc(), i, lto_location_cache::cached_location::line, line_table, lto_location_cache::cached_location::loc, loc_cache, LOCATION_LOCUS, location_with_discriminator(), set_block(), and lto_location_cache::cached_location::sysp.

Referenced by add_type_duplicate(), input_function(), ipa_odr_read_section(), lto_input_ts_exp_tree_pointers(), lto_read_body_or_constructor(), warn_odr(), and ~lto_location_cache().

cmp_loc()

int lto_location_cache::cmp_loc ( const void * pa, const void * pb )

staticprivate

Sort locations in source order. Start with file from last application.   

References a, b, BLOCK_NUMBER, current_cache, current_file, current_line, ggc_alloc(), and NULL_TREE.

Referenced by apply_location_cache().

input_location()

void lto_location_cache::input_location	(	location_t *	loc,
		struct bitpack_d *	bp,
		class data_in *	data_in )

Read a location bitpack from bit pack BP and either update *LOC directly
or add it to the location cache.
It is neccesary to call apply_location_cache to get *LOC updated.   

References ggc_alloc(), input_location_and_block(), and NULL.

Referenced by lto_input_location().

input_location_and_block()

void lto_location_cache::input_location_and_block	(	location_t *	loc,
		struct bitpack_d *	bp,
		class lto_input_block *	ib,
		class data_in *	data_in )

Read a location bitpack from bit pack BP and either update *LOC directly
or add it to the location cache.  If IB is non-NULL, stream in a block
afterwards.
It is neccesary to call apply_location_cache to get *LOC updated.   

References bp_unpack_int_in_range(), bp_unpack_string(), bp_unpack_value(), bp_unpack_var_len_unsigned(), canon_file_name(), canon_relative_path_prefix(), current_block, current_cache, current_col, current_discr, current_file, current_line, current_loc, current_sysp, gcc_assert, get_src_pwd(), ggc_alloc(), loc_cache, LOCATION_LOCUS, NULL, NULL_TREE, set_block(), src_pwd, and stream_read_tree.

Referenced by input_cfg(), input_gimple_stmt(), input_location(), and input_phi().

revert_location_cache()

void lto_location_cache::revert_location_cache

(

)

Tree merging did succeed; throw away recent changes.   

References accepted_length, and loc_cache.

Referenced by ipa_odr_read_section().

Field Documentation

accepted_length

int lto_location_cache::accepted_length

private

Referenced by accept_location_cache(), apply_location_cache(), and revert_location_cache().

current_block

tree lto_location_cache::current_block

private

Referenced by apply_location_cache(), and input_location_and_block().

current_cache

lto_location_cache * lto_location_cache::current_cache

static

Pointer to currently alive instance of lto_location_cache.   

Referenced by accept_location_cache(), add_type_duplicate(), cmp_loc(), input_location_and_block(), lto_location_cache(), warn_odr(), and ~lto_location_cache().

current_col

int lto_location_cache::current_col

private

Referenced by apply_location_cache(), and input_location_and_block().

current_discr

unsigned lto_location_cache::current_discr

private

Referenced by apply_location_cache(), and input_location_and_block().

current_file

const char* lto_location_cache::current_file

private

Referenced by apply_location_cache(), cmp_loc(), and input_location_and_block().

current_line

int lto_location_cache::current_line

private

Referenced by apply_location_cache(), cmp_loc(), and input_location_and_block().

current_loc

location_t lto_location_cache::current_loc

private

Referenced by apply_location_cache(), and input_location_and_block().

current_sysp

bool lto_location_cache::current_sysp

private

Referenced by input_location_and_block().

loc_cache

auto_vec<cached_location> lto_location_cache::loc_cache

private

Referenced by accept_location_cache(), apply_location_cache(), input_location_and_block(), and revert_location_cache().

---

The documentation for this class was generated from the following files:

• lto-streamer.h
• lto-streamer-in.cc