Data Structures
class	autofdo_source_profile
class	count_info
struct	decl_lineno
class	edge_info
class	function_instance
struct	scale
struct	string_compare
class	string_table

Typedefs
typedef auto_vec< decl_lineno, 20 >	inline_stack
typedef auto_vec< char * >	string_vector
typedef std::map< unsigned, gcov_type >	icall_target_map
typedef std::set< gimple * >	stmt_set
typedef hash_set< int_hash< int, -1, -2 > >	name_index_set
typedef hash_map< int_hash< int, -1, -2 >, int >	name_index_map
typedef std::set< basic_block >	bb_set

Functions
static char *	get_original_name (const char *name, bool alloc=true)
static unsigned	get_combined_location (location_t loc, tree decl)
static tree	get_function_decl_from_block (tree block)
static void	dump_afdo_loc (FILE *f, unsigned loc)
static const char *	raw_symbol_name (const char *asmname)
static const char *	raw_symbol_name (tree decl)
static void	dump_inline_stack (FILE f, inline_stack stack)
static void	get_inline_stack (location_t locus, inline_stack *stack, tree fn=current_function_decl)
static void	get_inline_stack_in_node (location_t locus, inline_stack stack, cgraph_node node)
static unsigned	get_relative_location_for_locus (tree fn, tree block, location_t locus)
static unsigned	get_relative_location_for_stmt (tree fn, gimple *stmt)
static int	match_with_target (cgraph_node n, gimple stmt, function_instance inlined_fn, cgraph_node orig_callee)
static void	dump_stmt (gimple stmt, count_info info, function_instance *inlined_fn, inline_stack &stack)
void	mark_expr_locations (function_instance f, tree t, cgraph_node node, hash_set< const count_info * > &counts)
static void	walk_block (tree fn, function_instance *s, tree block)
static void	fake_read_autofdo_module_profile ()
static void	read_profile (void)
static bool	afdo_indirect_call (gcall stmt, const icall_target_map &map, bool transform, cgraph_edge indirect_edge)
static bool	afdo_vpt (gcall gs, const icall_target_map &map, bool transform, cgraph_edge indirect_edge)
static bool	is_bb_annotated (const basic_block bb, const bb_set &annotated)
static void	set_bb_annotated (basic_block bb, bb_set *annotated)
static void	update_count_by_afdo_count (profile_count *count, gcov_type c)
static void	update_count_by_afdo_count (profile_count *count, profile_count c)
static bool	afdo_set_bb_count (basic_block bb, hash_set< basic_block > &zero_bbs)
static void	afdo_find_equiv_class (bb_set *annotated_bb)
static bool	afdo_propagate_edge (bool is_succ, bb_set *annotated_bb)
static void	afdo_propagate_circuit (const bb_set &annotated_bb)
static void	afdo_propagate (bb_set *annotated_bb)
static int	cmp (const void a, const void b)
static void	add_scale (vec< scale > *scales, profile_count annotated, profile_count orig)
static void	scale_bbs (const vec< basic_block > &bbs, sreal scale)
void	afdo_adjust_guessed_profile (bb_set *annotated_bb)
static void	afdo_calculate_branch_prob (bb_set *annotated_bb)
static void	afdo_annotate_cfg (void)
static unsigned int	auto_profile (void)

Variables
static string_table *	afdo_string_table
static autofdo_source_profile *	afdo_source_profile
static gcov_summary *	afdo_profile_info
static gcov_type	afdo_count_scale = 1

Typedef Documentation

◆ bb_set

typedef std::set<basic_block> autofdo::bb_set

◆ icall_target_map

typedef std::map<unsigned, gcov_type> autofdo::icall_target_map

Map from function name's index in string_table to target's
execution count.

◆ inline_stack

typedef auto_vec<decl_lineno, 20> autofdo::inline_stack


Represent an inline stack. vector[0] is the leaf node.

◆ name_index_map

typedef hash_map<int_hash <int, -1, -2>, int> autofdo::name_index_map

◆ name_index_set

typedef hash_set<int_hash <int, -1, -2> > autofdo::name_index_set


Set and map used to translate name indexes.

◆ stmt_set

typedef std::set<gimple *> autofdo::stmt_set

Set of gimple stmts. Used to track if the stmt has already been promoted
to direct call.

◆ string_vector

typedef auto_vec<char *> autofdo::string_vector


String array that stores function names.

Function Documentation

◆ add_scale()

void autofdo::add_scale	(	vec< scale > *	scales,
		profile_count	annotated,
		profile_count	orig )

static


Add scale ORIG/ANNOTATED to SCALES.

References profile_count::dump(), dump_file, profile_count::force_nonzero(), profile_count::guessed_local(), PRId64, profile_count::to_sreal_scale(), and profile_count::value().

Referenced by afdo_adjust_guessed_profile().

◆ afdo_adjust_guessed_profile()

void autofdo::afdo_adjust_guessed_profile ( bb_set * annotated_bb )

In case given basic block was fully optimized out, AutoFDO
will have no data about it.  In this case try to preserve static profile.
Identify connected components (in undirected form of CFG) which has
no annotations at all.  Look at thir boundaries and try to determine
scaling factor and scale.

References add_scale(), AFDO_EINFO, b, cfun, cmp(), basic_block_def::count, dump_file, FOR_ALL_BB_FN, gcc_checking_assert, profile_count::guessed_local(), basic_block_def::index, profile_count::initialized_p(), is_bb_annotated(), last_basic_block_for_fn, profile_count::max(), max_count, n_basic_blocks_for_fn, PRId64, scale_bbs(), profile_count::to_sreal_scale(), and profile_count::zero().

Referenced by afdo_calculate_branch_prob().

◆ afdo_annotate_cfg()

void autofdo::afdo_annotate_cfg ( void )

static


Annotate auto profile to the control flow graph.

References AFDO, profile_count::afdo(), afdo_calculate_branch_prob(), afdo_count_scale, afdo_set_bb_count(), afdo_source_profile, calculate_dominance_info(), CDI_DOMINATORS, CDI_POST_DOMINATORS, cfun, basic_block_def::count, cgraph_node::count, count, current_function_decl, profile_count::dump(), dump_file, ENTRY_BLOCK_PTR_FOR_FN, EXIT_BLOCK_PTR_FOR_FN, FOR_ALL_BB_FN, FOR_EACH_BB_FN, free_dominance_info(), gcc_assert, cgraph_node::get(), gimple_value_profile_transformations(), profile_count::global0afdo(), GUESSED_LOCAL, basic_block_def::index, profile_count::ipa_p(), is_bb_annotated(), hash_set< KeyId, Lazy, Traits >::is_empty(), loop_optimizer_finalize(), loop_optimizer_init(), profile_count::nonzero_p(), NULL, PROFILE_READ, profile_status_for_fn, profile_count::quality(), set_bb_annotated(), TODO_update_ssa, profile_count::uninitialized(), update_count_by_afdo_count(), update_max_bb_count(), update_ssa(), and profile_count::zero().

Referenced by auto_profile().

◆ afdo_calculate_branch_prob()

void autofdo::afdo_calculate_branch_prob ( bb_set * annotated_bb )

static

Propagate counts on control flow graph and calculate branch
probabilities.

References profile_count::afdo(), profile_probability::afdo(), afdo_adjust_guessed_profile(), AFDO_EINFO, afdo_find_equiv_class(), afdo_propagate(), profile_probability::always(), basic_block_def::aux, cfun, FOR_ALL_BB_FN, FOR_EACH_BB_FN, FOR_EACH_EDGE, gcc_assert, GUESSED, is_bb_annotated(), profile_probability::never(), profile_count::nonzero_p(), NULL, basic_block_def::succs, and profile_count::zero().

Referenced by afdo_annotate_cfg().

◆ afdo_find_equiv_class()

void autofdo::afdo_find_equiv_class ( bb_set * annotated_bb )

static

BB1 and BB2 are in an equivalent class iff:
1. BB1 dominates BB2.
2. BB2 post-dominates BB1.
3. BB1 and BB2 are in the same loop nest.
This function finds the equivalent class for each basic block, and
stores a pointer to the first BB in its equivalent class. Meanwhile,
set bb counts for the same equivalent class to be idenical. Update
ANNOTATED_BB for the first BB in its equivalent class.

References basic_block_def::aux, CDI_DOMINATORS, CDI_POST_DOMINATORS, cfun, basic_block_def::count, dominated_by_p(), dump_file, FOR_ALL_BB_FN, get_dominated_by(), basic_block_def::index, is_bb_annotated(), basic_block_def::loop_father, NULL, set_bb_annotated(), and update_count_by_afdo_count().

Referenced by afdo_calculate_branch_prob().

◆ afdo_indirect_call()

bool autofdo::afdo_indirect_call	(	gcall *	stmt,
		const icall_target_map &	map,
		bool	transform,
		cgraph_edge *	indirect_edge )

static

From AutoFDO profiles, find values inside STMT for that we want to measure
histograms for indirect-call optimization.

This function is actually served for 2 purposes:
  * before annotation, we need to mark histogram, promote and inline
  * after annotation, we just need to mark, and let follow-up logic to
    decide if it needs to promote and inline.

References afdo_count_scale, afdo_string_table, cfun, count, histogram_value_t::counters, symtab_node::decl, symtab_node::definition, dump_file, cgraph_node::get_for_asmname(), get_identifier(), gimple_add_histogram_value(), gimple_alloc_histogram_value(), gimple_bb(), gimple_call_fn(), gimple_call_fndecl(), gimple_call_internal_p(), HIST_TYPE_INDIR_CALL, histogram_value_t::hvalue, cgraph_edge::make_speculative(), map, histogram_value_t::n_counters, NULL, NULL_TREE, print_generic_expr(), print_gimple_stmt(), cgraph_node::profile_id, and TDF_SLIM.

Referenced by afdo_vpt().

◆ afdo_propagate()

void autofdo::afdo_propagate ( bb_set * annotated_bb )

static

Propagate the basic block count and edge count on the control flow
graph. We do the propagation iteratively until stablize.

References afdo_propagate_circuit(), afdo_propagate_edge(), basic_block_def::aux, cfun, changed, basic_block_def::count, profile_count::dump(), dump_file, FOR_ALL_BB_FN, i, basic_block_def::index, is_bb_annotated(), set_bb_annotated(), and update_count_by_afdo_count().

Referenced by afdo_calculate_branch_prob().

◆ afdo_propagate_circuit()

void autofdo::afdo_propagate_circuit ( const bb_set & annotated_bb )

static

Special propagation for circuit expressions. Because GCC translates
control flow into data flow for circuit expressions. E.g.
BB1:
if (a && b)
  BB2
else
  BB3

will be translated into:

BB1:
  if (a)
    goto BB.t1
  else
    goto BB.t3
BB.t1:
  if (b)
    goto BB.t2
  else
    goto BB.t3
BB.t2:
  goto BB.t3
BB.t3:
  tmp = PHI (0 (BB1), 0 (BB.t1), 1 (BB.t2)
  if (tmp)
    goto BB2
  else
    goto BB3

In this case, we need to propagate through PHI to determine the edge
count of BB1->BB.t1, BB.t1->BB.t2.

References AFDO_EINFO, cfun, dyn_cast(), FOR_ALL_BB_FN, FOR_EACH_EDGE, gimple_assign_rhs1(), gimple_assign_single_p(), gimple_cond_code(), gimple_cond_lhs(), gimple_cond_rhs(), gimple_phi_arg_def(), gimple_phi_arg_edge(), gimple_phi_num_args(), i, integer_onep(), integer_zerop(), is_bb_annotated(), last_nondebug_stmt(), SSA_NAME_DEF_STMT, basic_block_def::succs, TREE_CODE, TREE_CONSTANT, and profile_count::zero().

Referenced by afdo_propagate().

◆ afdo_propagate_edge()

bool autofdo::afdo_propagate_edge	(	bool	is_succ,
		bb_set *	annotated_bb )

static

If a basic block's count is known, and only one of its in/out edges' count
is unknown, its count can be calculated. Meanwhile, if all of the in/out
edges' counts are known, then the basic block's unknown count can also be
calculated. Also, if a block has a single predecessor or successor, the block's
count can be propagated to that predecessor or successor.
IS_SUCC is true if out edges of a basic blocks are examined.
Update ANNOTATED_BB accordingly.
Return TRUE if any basic block/edge count is changed.

References profile_count::afdo(), AFDO_EINFO, cfun, changed, basic_block_def::count, profile_count::dump(), dump_file, FOR_EACH_BB_FN, FOR_EACH_EDGE, gcc_assert, basic_block_def::index, is_bb_annotated(), profile_count::nonzero_p(), NULL, basic_block_def::preds, set_bb_annotated(), single_pred_edge(), single_pred_p(), single_succ_edge(), single_succ_p(), basic_block_def::succs, update_count_by_afdo_count(), and profile_count::zero().

Referenced by afdo_propagate().

◆ afdo_set_bb_count()

bool autofdo::afdo_set_bb_count	(	basic_block	bb,
		hash_set< basic_block > &	zero_bbs )

static

For a given BB, set its execution count. Attach value profile if a stmt
is not in PROMOTED, because we only want to promote an indirect call once.
Return TRUE if BB is annotated.

References hash_set< KeyId, Lazy, Traits >::add(), afdo_count_scale, afdo_source_profile, afdo_vpt(), autofdo::count_info::count, basic_block_def::count, dump_file, dyn_cast(), FOR_EACH_EDGE, gimple_clobber_p(), gimple_phi_arg_location_from_edge(), gsi_end_p(), gsi_next(), gsi_start_bb(), gsi_start_phis(), gsi_stmt(), basic_block_def::index, max_count, NULL, PRId64, print_gimple_stmt(), PRIu64, basic_block_def::succs, autofdo::count_info::targets, TDF_SLIM, and update_count_by_afdo_count().

Referenced by afdo_annotate_cfg().

◆ afdo_vpt()

bool autofdo::afdo_vpt	(	gcall *	gs,
		const icall_target_map &	map,
		bool	transform,
		cgraph_edge *	indirect_edge )

static

From AutoFDO profiles, find values inside STMT for that we want to measure
histograms and adds them to list VALUES.

References afdo_indirect_call(), and map.

Referenced by afdo_set_bb_count(), and afdo_vpt_for_early_inline().

◆ auto_profile()

unsigned int autofdo::auto_profile ( void )

static

Use AutoFDO profile to annoate the control flow graph.
Return the todo flag.

References afdo_annotate_cfg(), afdo_profile_info, afdo_source_profile, BUILTINS_LOCATION, CDI_DOMINATORS, CDI_POST_DOMINATORS, compute_function_frequency(), symtab_node::decl, DECL_SOURCE_LOCATION, DECL_STRUCT_FUNCTION, FINISHED, FOR_EACH_FUNCTION, free_dominance_info(), gimple_has_body_p(), init_node_map(), pop_cfun(), profile_info, push_cfun(), cgraph_edge::rebuild_edges(), and symtab.

◆ cmp()

int autofdo::cmp	(	const void *	a,
		const void *	b )

static


qsort comparator of sreals.

References a, and b.

Referenced by afdo_adjust_guessed_profile().

◆ dump_afdo_loc()

void autofdo::dump_afdo_loc	(	FILE *	f,
		unsigned	loc )

static


Dump LOC to F.

Referenced by autofdo::function_instance::dump(), dump_inline_stack(), autofdo::function_instance::dump_inline_stack(), autofdo::function_instance::match(), and walk_block().

◆ dump_inline_stack()

void autofdo::dump_inline_stack	(	FILE *	f,
		inline_stack *	stack )

static


Dump STACK to F.

References dump_afdo_loc(), and raw_symbol_name().

Referenced by autofdo::autofdo_source_profile::get_callsite_total_count(), and autofdo::autofdo_source_profile::update_inlined_ind_target().

◆ dump_stmt()

void autofdo::dump_stmt	(	gimple *	stmt,
		count_info *	info,
		function_instance *	inlined_fn,
		inline_stack &	stack )

static

References autofdo::count_info::count, dump_file, gcc_checking_assert, print_gimple_stmt(), PRIu64, and TDF_SLIM.

Referenced by autofdo::function_instance::match().

◆ fake_read_autofdo_module_profile()

void autofdo::fake_read_autofdo_module_profile ( )

static


Module profile is only used by LIPO. Here we simply ignore it.

References gcc_assert, and gcov_read_unsigned().

Referenced by read_profile().

◆ get_combined_location()

unsigned autofdo::get_combined_location	(	location_t	loc,
		tree	decl )

static

Return the combined location, which is a 32bit integer in which
higher 16 bits stores the line offset of LOC to the start lineno
of DECL, The lower 16 bits stores the discriminator.

References DECL_SOURCE_LINE, DECL_SOURCE_LOCATION, get_discriminator_from_loc(), inform(), LOCATION_LINE, and warning_at().

Referenced by get_inline_stack(), get_relative_location_for_locus(), and autofdo::function_instance::match().

◆ get_function_decl_from_block()

tree autofdo::get_function_decl_from_block ( tree block )

static


Return the function decl of a given lexical BLOCK.

References BLOCK_ABSTRACT_ORIGIN, inlined_function_outer_scope_p(), and NULL_TREE.

Referenced by get_inline_stack(), and get_relative_location_for_locus().

◆ get_inline_stack()

void autofdo::get_inline_stack	(	location_t	locus,
		inline_stack *	stack,
		tree	fn = current_function_decl )

static


Store inline stack for STMT in STACK.

References BLOCK_SOURCE_LOCATION, BLOCK_SUPERCONTEXT, current_function_decl, get_combined_location(), get_function_decl_from_block(), LOCATION_BLOCK, LOCATION_LOCUS, TREE_CODE, and UNKNOWN_LOCATION.

Referenced by get_inline_stack_in_node().

◆ get_inline_stack_in_node()

void autofdo::get_inline_stack_in_node	(	location_t	locus,
		inline_stack *	stack,
		cgraph_node *	node )

static

Same as get_inline_stack for a given node which may be
an inline clone.  If NODE is NULL, assume current_function_decl.

References cgraph_edge::call_stmt, cgraph_edge::caller, cgraph_node::callers, symtab_node::decl, get_inline_stack(), gimple_location(), cgraph_node::inlined_to, and NULL.

Referenced by autofdo::autofdo_source_profile::get_callsite_total_count(), autofdo::autofdo_source_profile::get_count_info(), mark_expr_locations(), autofdo::function_instance::match(), autofdo::autofdo_source_profile::remove_icall_target(), and autofdo::autofdo_source_profile::update_inlined_ind_target().

◆ get_original_name()

char * autofdo::get_original_name	(	const char *	name,
		bool	alloc = true )

static


Helper functions.

Return the original name of NAME: strip the suffix that starts
with '.' for names that are generetad after auto-profile pass.
This is to match profiled names with the names in the IR at this stage.
Note that we only have to strip sufix and not in the middle.
Caller is responsible for freeing RET.

References get_original_name(), i, and NULL.

Referenced by get_original_name(), and autofdo::autofdo_source_profile::offline_external_functions().

◆ get_relative_location_for_locus()

unsigned autofdo::get_relative_location_for_locus	(	tree	fn,
		tree	block,
		location_t	locus )

static

Return combined location of LOCUS within BLOCK that is in
function FN.

This is a 32bit integer in which higher 16 bits stores the line offset of
LOC to the start lineno of DECL, The lower 16 bits stores the
discriminator.

References BLOCK_SUPERCONTEXT, get_combined_location(), get_function_decl_from_block(), inlined_function_outer_scope_p(), LOCATION_LOCUS, TREE_CODE, and UNKNOWN_LOCATION.

Referenced by get_relative_location_for_stmt(), and walk_block().

◆ get_relative_location_for_stmt()

unsigned autofdo::get_relative_location_for_stmt	(	tree	fn,
		gimple *	stmt )

static


Return combined location of STMT in function FN.

References get_relative_location_for_locus(), gimple_location(), and LOCATION_BLOCK.

Referenced by autofdo::function_instance::find_icall_target_map(), and autofdo::function_instance::remove_icall_target().

◆ is_bb_annotated()

bool autofdo::is_bb_annotated	(	const basic_block	bb,
		const bb_set &	annotated )

static

References AFDO, basic_block_def::count, gcc_checking_assert, profile_count::nonzero_p(), and profile_count::quality().

Referenced by afdo_adjust_guessed_profile(), afdo_annotate_cfg(), afdo_calculate_branch_prob(), afdo_find_equiv_class(), afdo_propagate(), afdo_propagate_circuit(), and afdo_propagate_edge().

◆ mark_expr_locations()

void autofdo::mark_expr_locations	(	function_instance *	f,
		tree	t,
		cgraph_node *	node,
		hash_set< const count_info * > &	counts )


Mark expr locations as used.

References hash_set< KeyId, Lazy, Traits >::add(), EXPR_LOCATION, get_inline_stack_in_node(), handled_component_p(), autofdo::function_instance::lookup_count(), and TREE_OPERAND.

Referenced by autofdo::function_instance::match().

◆ match_with_target()

int autofdo::match_with_target	(	cgraph_node *	n,
		gimple *	stmt,
		function_instance *	inlined_fn,
		cgraph_node *	orig_callee )

static

Try to check if inlined_fn can correspond to a call of function N.
Return non-zero if it correspons and 2 if renaming was done.

References afdo_string_table, symtab_node::decl, symtab_node::definition, dump_file, lang_hooks::dwarf_name, gimple_location(), i, inform(), autofdo::function_instance::name(), raw_symbol_name(), autofdo::function_instance::set_name(), cgraph_node::ultimate_alias_target(), and warning().

Referenced by autofdo::function_instance::match().

◆ raw_symbol_name() [1/2]

const char * autofdo::raw_symbol_name ( const char * asmname )

static


Return assembler name as in symbol table and DW_AT_linkage_name.

References sorry(), and user_label_prefix.

Referenced by dump_inline_stack(), autofdo::autofdo_source_profile::get_callsite_total_count(), autofdo::function_instance::get_function_instance_by_decl(), autofdo::autofdo_source_profile::get_function_instance_by_inline_stack(), autofdo::string_table::get_index_by_decl(), match_with_target(), autofdo::autofdo_source_profile::offline_external_functions(), raw_symbol_name(), and walk_block().

◆ raw_symbol_name() [2/2]

const char * autofdo::raw_symbol_name ( tree decl )

static


Convenience wrapper that looks up assembler name.

References DECL_ASSEMBLER_NAME, IDENTIFIER_POINTER, and raw_symbol_name().

◆ read_profile()

void autofdo::read_profile ( void )

static


Read data from profile data file.

References afdo_source_profile, afdo_string_table, AUTO_PROFILE_VERSION, autofdo::autofdo_source_profile::create(), error(), fake_read_autofdo_module_profile(), GCOV_DATA_MAGIC, gcov_open(), gcov_read_unsigned(), and NULL.

Referenced by read_autofdo_file().

◆ scale_bbs()

void autofdo::scale_bbs	(	const vec< basic_block > &	bbs,
		sreal	scale )

static

Scale counts of all basic blocks in BBS by SCALE and convert them to
IPA quality.

References profile_count::afdo(), b, profile_count::dump(), dump_file, profile_count::nonzero_p(), and profile_count::zero().

Referenced by afdo_adjust_guessed_profile().

◆ set_bb_annotated()

void autofdo::set_bb_annotated	(	basic_block	bb,
		bb_set *	annotated )

static

References AFDO, basic_block_def::count, gcc_checking_assert, profile_count::nonzero_p(), and profile_count::quality().

Referenced by afdo_annotate_cfg(), afdo_find_equiv_class(), afdo_propagate(), and afdo_propagate_edge().

◆ update_count_by_afdo_count() [1/2]

void autofdo::update_count_by_afdo_count	(	profile_count *	count,
		gcov_type	c )

static


Update COUNT by known autofdo count C.

References profile_count::afdo(), count, profile_count::from_gcov_type(), GUESSED, GUESSED_LOCAL, and profile_count::zero().

Referenced by afdo_annotate_cfg(), afdo_find_equiv_class(), afdo_propagate(), afdo_propagate_edge(), and afdo_set_bb_count().

◆ update_count_by_afdo_count() [2/2]

void autofdo::update_count_by_afdo_count	(	profile_count *	count,
		profile_count	c )

static


Update COUNT by known autofdo count C.

References count.

◆ walk_block()

void autofdo::walk_block	(	tree	fn,
		function_instance *	s,
		tree	block )

static


Walk scope block BLOCK and mark all inlined functions as realized.

References BLOCK_ABSTRACT_ORIGIN, BLOCK_CHAIN, BLOCK_SOURCE_LOCATION, BLOCK_SUBBLOCKS, BLOCK_SUPERCONTEXT, dump_afdo_loc(), dump_file, get_relative_location_for_locus(), inlined_function_outer_scope_p(), raw_symbol_name(), and walk_block().

Referenced by autofdo::autofdo_source_profile::offline_unrealized_inlines(), and walk_block().

Variable Documentation

◆ afdo_count_scale

gcov_type autofdo::afdo_count_scale = 1

static

Scaling factor for afdo data.  Compared to normal profile
AFDO profile counts are much lower, depending on sampling
frequency.  We scale data up to reudce effects of roundoff
errors.

Referenced by afdo_annotate_cfg(), afdo_indirect_call(), afdo_set_bb_count(), autofdo::function_instance::find_icall_target_map(), autofdo::autofdo_source_profile::get_callsite_total_count(), autofdo::autofdo_source_profile::read(), and autofdo::autofdo_source_profile::update_inlined_ind_target().

◆ afdo_profile_info

gcov_summary* autofdo::afdo_profile_info

static


gcov_summary structure to store the profile_info.

Referenced by auto_profile(), autofdo::autofdo_source_profile::read(), read_autofdo_file(), and autofdo::function_instance::read_function_instance().

◆ afdo_source_profile

autofdo_source_profile* autofdo::afdo_source_profile

static


Store the AutoFDO source profile.

Referenced by afdo_annotate_cfg(), afdo_callsite_hot_enough_for_early_inline(), afdo_set_bb_count(), afdo_vpt_for_early_inline(), auto_profile(), end_auto_profile(), autofdo::function_instance::offline(), autofdo::autofdo_source_profile::read(), read_profile(), and remove_afdo_speculative_target().

◆ afdo_string_table

string_table* autofdo::afdo_string_table

static


Store the strings read from the profile data file.

Referenced by afdo_indirect_call(), autofdo::function_instance::dump(), autofdo::function_instance::dump_inline_stack(), end_auto_profile(), autofdo::function_instance::find_icall_target_map(), autofdo::autofdo_source_profile::get_callsite_total_count(), autofdo::function_instance::get_cgraph_node(), autofdo::autofdo_source_profile::get_function_instance_by_decl(), autofdo::function_instance::get_function_instance_by_decl(), autofdo::autofdo_source_profile::get_function_instance_by_inline_stack(), autofdo::function_instance::match(), match_with_target(), autofdo::autofdo_source_profile::offline_external_functions(), autofdo::autofdo_source_profile::offline_unrealized_inlines(), autofdo::autofdo_source_profile::read(), and read_profile().

Data Structures

Typedefs

Functions

Variables

Typedef Documentation

◆ bb_set

◆ icall_target_map

◆ inline_stack

◆ name_index_map

◆ name_index_set

◆ stmt_set

◆ string_vector

Function Documentation

◆ add_scale()

◆ afdo_adjust_guessed_profile()

◆ afdo_annotate_cfg()

◆ afdo_calculate_branch_prob()

◆ afdo_find_equiv_class()

◆ afdo_indirect_call()

◆ afdo_propagate()

◆ afdo_propagate_circuit()

◆ afdo_propagate_edge()

◆ afdo_set_bb_count()

◆ afdo_vpt()

◆ auto_profile()

◆ cmp()

◆ dump_afdo_loc()

◆ dump_inline_stack()

◆ dump_stmt()

◆ fake_read_autofdo_module_profile()

◆ get_combined_location()

◆ get_function_decl_from_block()

◆ get_inline_stack()

◆ get_inline_stack_in_node()

◆ get_original_name()

◆ get_relative_location_for_locus()

◆ get_relative_location_for_stmt()

◆ is_bb_annotated()

◆ mark_expr_locations()

◆ match_with_target()

◆ raw_symbol_name() [1/2]

◆ raw_symbol_name() [2/2]

◆ read_profile()

◆ scale_bbs()

◆ set_bb_annotated()

◆ update_count_by_afdo_count() [1/2]

◆ update_count_by_afdo_count() [2/2]

◆ walk_block()

Variable Documentation

◆ afdo_count_scale

◆ afdo_profile_info

◆ afdo_source_profile

◆ afdo_string_table