autofdo::autofdo_source_profile Class Reference

Collaboration diagram for autofdo::autofdo_source_profile:

Public Member Functions
	~autofdo_source_profile ()
function_instance *	get_function_instance_by_decl (tree decl) const
function_instance *	get_function_instance_by_descriptor (function_instance_descriptor) const
void	add_function_instance (function_instance *)
bool	get_count_info (gimple *stmt, count_info *info, cgraph_node *node=NULL) const
bool	get_count_info (location_t gimple_loc, count_info *info, cgraph_node *node=NULL) const
gcov_type	get_callsite_total_count (struct cgraph_edge *edge) const
bool	update_inlined_ind_target (gcall *stmt, count_info *info, cgraph_node *node)
void	remove_icall_target (cgraph_edge *e)
void	offline_external_functions ()
void	offline_unrealized_inlines ()

Static Public Member Functions
static autofdo_source_profile *	create ()

Private Types
typedef std::map< function_instance_descriptor, function_instance * >	name_function_instance_map

Private Member Functions
	autofdo_source_profile ()
bool	read ()
function_instance *	get_function_instance_by_inline_stack (const inline_stack &stack) const
name_function_instance_map::const_iterator	find_iter_for_function_instance (function_instance_descriptor descriptor) const
function_instance *	find_function_instance (function_instance_descriptor descriptor) const
bool	remove_function_instance (function_instance *inst)

Private Attributes
name_function_instance_map	map_
auto_vec< function_instance * >	duplicate_functions_

Detailed Description

Profile for all functions.   

Member Typedef Documentation

name_function_instance_map

typedef std::map<function_instance_descriptor, function_instance *> autofdo::autofdo_source_profile::name_function_instance_map

private

Constructor & Destructor Documentation

~autofdo_source_profile()

autofdo::autofdo_source_profile::~autofdo_source_profile

(

)

Member functions for autofdo_source_profile.   

References map_.

autofdo_source_profile()

autofdo::autofdo_source_profile::autofdo_source_profile ( )

inlineprivate

Referenced by create().

Member Function Documentation

add_function_instance()

void autofdo::autofdo_source_profile::add_function_instance

(

function_instance *

fn

)

Add function instance FN.   

References gcc_checking_assert, autofdo::function_instance::get_descriptor(), and map_.

Referenced by offline_external_functions(), and read().

create()

autofdo_source_profile * autofdo::autofdo_source_profile::create ( )

inlinestatic

References autofdo_source_profile(), map, and NULL.

Referenced by autofdo::read_profile().

find_function_instance()

function_instance * autofdo::autofdo_source_profile::find_function_instance ( function_instance_descriptor descriptor ) const

private

Similar to the above, but return a pointer to the instance instead of an
iterator.   

References find_iter_for_function_instance(), map_, and NULL.

Referenced by get_function_instance_by_decl(), get_function_instance_by_descriptor(), get_function_instance_by_inline_stack(), offline_external_functions(), offline_unrealized_inlines(), and read().

find_iter_for_function_instance()

autofdo_source_profile::name_function_instance_map::const_iterator autofdo::autofdo_source_profile::find_iter_for_function_instance ( function_instance_descriptor descriptor ) const

private

Find the matching function instance which has DESCRIPTOR as its
descriptor.  If not found, also try checking if an instance exists with the
same name which has no associated filename.   

References map_, autofdo::function_instance_descriptor::symbol_name(), and autofdo::string_table::unknown_filename.

Referenced by find_function_instance(), and remove_function_instance().

get_callsite_total_count()

gcov_type autofdo::autofdo_source_profile::get_callsite_total_count

(

struct cgraph_edge *

edge

)

const

Find total count of the callee of EDGE.   

References autofdo::afdo_count_scale, autofdo::afdo_string_table, dump_file, autofdo::dump_inline_stack(), get_function_instance_by_inline_stack(), autofdo::get_inline_stack_in_node(), gimple_location(), NULL, autofdo::raw_symbol_name(), and UNKNOWN_LOCATION.

get_count_info() [1/2]

bool autofdo::autofdo_source_profile::get_count_info	(	gimple *	stmt,
		count_info *	info,
		cgraph_node *	node = NULL ) const

Find count_info for a given gimple STMT. If found, store the count_info
in INFO and return true; otherwise return false.   

References gcc_checking_assert, get_count_info(), gimple_location(), and stmt_loc_used_by_debug_info().

Referenced by get_count_info(), and update_inlined_ind_target().

get_count_info() [2/2]

bool autofdo::autofdo_source_profile::get_count_info	(	location_t	gimple_loc,
		count_info *	info,
		cgraph_node *	node = NULL ) const

References cfun, get_function_instance_by_inline_stack(), autofdo::get_inline_stack_in_node(), LOCATION_LOCUS, and NULL.

get_function_instance_by_decl()

function_instance * autofdo::autofdo_source_profile::get_function_instance_by_decl

(

tree

decl

)

const

For a given DECL, returns the top-level function_instance.   

References autofdo::afdo_string_table, DECL_SOURCE_FILE, find_function_instance(), autofdo::get_normalized_path(), and NULL.

get_function_instance_by_descriptor()

function_instance * autofdo::autofdo_source_profile::get_function_instance_by_descriptor

(

function_instance_descriptor

descriptor

)

const

For a given DESCRIPTOR, return the matching instance if found.   

References find_function_instance().

get_function_instance_by_inline_stack()

function_instance * autofdo::autofdo_source_profile::get_function_instance_by_inline_stack ( const inline_stack & stack ) const

private

Return the function_instance in the profile that correspond to the
inline STACK.   

References autofdo::afdo_string_table, DECL_SOURCE_FILE, dump_enabled_p(), dump_file, dump_printf_loc(), find_function_instance(), dump_user_location_t::from_location_t(), autofdo::get_normalized_path(), i, MSG_NOTE, MSG_PRIORITY_INTERNALS, NULL, autofdo::raw_symbol_name(), and UNKNOWN_LOCATION.

Referenced by get_callsite_total_count(), get_count_info(), remove_icall_target(), and update_inlined_ind_target().

offline_external_functions()

void autofdo::autofdo_source_profile::offline_external_functions

(

)

Offline all functions not defined in the current unit.
We will not be able to early inline them.
Doing so early will get VPT decisions more realistic.   

References hash_set< KeyId, Lazy, Traits >::add(), add_function_instance(), autofdo::afdo_string_table, autofdo::function_instance::clear_in_worklist(), hash_set< KeyId, Lazy, Traits >::contains(), DECL_SOURCE_FILE, dump_file, autofdo::function_instance::dump_inline_stack(), duplicate_functions_, lang_hooks::dwarf_name, find_function_instance(), FOR_EACH_DEFINED_FUNCTION, gcc_checking_assert, hash_map< KeyId, Value, Traits >::get(), autofdo::function_instance::get_cgraph_node(), autofdo::function_instance::get_descriptor(), autofdo::function_instance::get_location(), autofdo::get_normalized_path(), i, autofdo::function_instance::in_worklist_p(), autofdo::function_instance::inlined_to(), map_, autofdo::function_instance::match(), autofdo::function_instance::merge(), autofdo::function_instance::offline_if_in_set(), hash_map< KeyId, Value, Traits >::put(), autofdo::raw_symbol_name(), autofdo::function_instance::remove_external_functions(), remove_function_instance(), autofdo::function_instance::set_symbol_name(), autofdo::function_instance::symbol_name(), and UNKNOWN_LOCATION.

offline_unrealized_inlines()

void autofdo::autofdo_source_profile::offline_unrealized_inlines

(

)

Offline all inline functions that are not marked as realized.
This will merge their profile into offline versions where available.
Also remove all functions we will no longer use.   

References autofdo::afdo_string_table, autofdo::function_instance::clear_in_worklist(), DECL_INITIAL, dump_file, autofdo::function_instance::dump_inline_stack(), error_mark_node, find_function_instance(), gcc_checking_assert, autofdo::function_instance::get_cgraph_node(), autofdo::function_instance::get_descriptor(), autofdo::function_instance::in_worklist_p(), autofdo::function_instance::inlined_to(), map_, autofdo::function_instance::merge(), autofdo::function_instance::offline_if_not_realized(), autofdo::function_instance::realized_p(), remove_function_instance(), autofdo::function_instance::set_realized(), autofdo::function_instance::symbol_name(), and autofdo::walk_block().

read()

bool autofdo::autofdo_source_profile::read ( )

private

Read AutoFDO profile and returns TRUE on success.   

source profile format:

GCOV_TAG_AFDO_FUNCTION: 4 bytes
LENGTH: 4 bytes
NUM_FUNCTIONS: 4 bytes
FUNCTION_INSTANCE_1
FUNCTION_INSTANCE_2
...
FUNCTION_INSTANCE_N.   

References add_function_instance(), autofdo::afdo_count_scale, afdo_hot_bb_threshold, autofdo::afdo_profile_info, autofdo::afdo_source_profile, autofdo::afdo_string_table, autofdo::afdo_summary_info, dump_file, fatal_error(), find_function_instance(), gcc_checking_assert, gcov_read_counter(), gcov_read_unsigned(), GCOV_TAG_AFDO_FUNCTION, i, inform(), MAX, profile_count::n_bits, PRIu64, autofdo::function_instance::read_function_instance(), set_hot_bb_threshold(), and UNKNOWN_LOCATION.

remove_function_instance()

bool autofdo::autofdo_source_profile::remove_function_instance ( function_instance * inst )

private

Remove a function instance from the map.  Returns true if the entry was
actually deleted.   

References find_iter_for_function_instance(), autofdo::function_instance::get_descriptor(), and map_.

Referenced by offline_external_functions(), and offline_unrealized_inlines().

remove_icall_target()

void autofdo::autofdo_source_profile::remove_icall_target

(

cgraph_edge *

e

)

References get_function_instance_by_inline_stack(), autofdo::get_inline_stack_in_node(), and gimple_location().

update_inlined_ind_target()

bool autofdo::autofdo_source_profile::update_inlined_ind_target	(	gcall *	stmt,
		count_info *	info,
		cgraph_node *	node )

Update value profile INFO for STMT from the inlined indirect callsite.
Return true if INFO is updated.   

References autofdo::afdo_count_scale, cfun, autofdo::count_info::count, current_function_decl, dump_file, autofdo::dump_inline_stack(), get_count_info(), get_function_instance_by_inline_stack(), autofdo::get_inline_stack_in_node(), gimple_location(), LOCATION_LOCUS, map, NULL, print_gimple_stmt(), autofdo::count_info::targets, and TDF_SLIM.

Field Documentation

duplicate_functions_

auto_vec<function_instance *> autofdo::autofdo_source_profile::duplicate_functions_

private

Referenced by offline_external_functions().

map_

name_function_instance_map autofdo::autofdo_source_profile::map_

private

Referenced by add_function_instance(), find_function_instance(), find_iter_for_function_instance(), offline_external_functions(), offline_unrealized_inlines(), remove_function_instance(), and ~autofdo_source_profile().

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

• auto-profile.cc