value-prof.h File Reference

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Data Structures
struct	histogram_value_t

Macros
#define	COUNTER_FOR_HIST_TYPE(TYPE)
#define	HIST_TYPE_FOR_COUNTER(COUNTER)

Typedefs
typedef struct histogram_value_t *	histogram_value
typedef const struct histogram_value_t *	const_histogram_value
typedef vec< histogram_value >	histogram_values

Enumerations
enum	hist_type {   HIST_TYPE_INTERVAL , HIST_TYPE_POW2 , HIST_TYPE_TOPN_VALUES , HIST_TYPE_INDIR_CALL ,   HIST_TYPE_AVERAGE , HIST_TYPE_IOR , HIST_TYPE_TIME_PROFILE , HIST_TYPE_MAX }

Functions
void	gimple_find_values_to_profile (histogram_values *)
bool	gimple_value_profile_transformations (void)
histogram_value	gimple_alloc_histogram_value (struct function *, enum hist_type, gimple *stmt=NULL, tree value=NULL_TREE)
histogram_value	gimple_histogram_value (struct function *, gimple *)
histogram_value	gimple_histogram_value_of_type (struct function *, gimple *, enum hist_type)
void	gimple_add_histogram_value (struct function *, gimple *, histogram_value)
void	dump_histograms_for_stmt (struct function *, FILE *, gimple *)
void	gimple_remove_histogram_value (struct function *, gimple *, histogram_value)
void	gimple_remove_stmt_histograms (struct function *, gimple *)
void	gimple_duplicate_stmt_histograms (struct function *, gimple *, struct function *, gimple *)
void	gimple_move_stmt_histograms (struct function *, gimple *, gimple *)
void	verify_histograms (void)
void	free_histograms (function *)
void	stringop_block_profile (gimple *, unsigned int *, HOST_WIDE_INT *)
gcall *	gimple_ic (gcall *, struct cgraph_node *, profile_probability)
bool	get_nth_most_common_value (gimple *stmt, const char *counter_type, histogram_value hist, gcov_type *value, gcov_type *count, gcov_type *all, unsigned n=0)
void	gimple_init_gcov_profiler (void)
void	gimple_gen_edge_profiler (int, edge)
void	gimple_gen_interval_profiler (histogram_value, unsigned)
void	gimple_gen_pow2_profiler (histogram_value, unsigned)
void	gimple_gen_topn_values_profiler (histogram_value, unsigned)
void	gimple_gen_ic_profiler (histogram_value, unsigned)
void	gimple_gen_ic_func_profiler (void)
void	gimple_gen_time_profiler (unsigned)
void	gimple_gen_average_profiler (histogram_value, unsigned)
void	gimple_gen_ior_profiler (histogram_value, unsigned)
void	stream_out_histogram_value (struct output_block *, histogram_value)
void	stream_in_histogram_value (class lto_input_block *, gimple *)
struct cgraph_node *	find_func_by_profile_id (int func_id)
void	init_branch_prob (void)
void	branch_prob (bool)
void	read_thunk_profile (struct cgraph_node *)
void	end_branch_prob (void)

Macro Definition Documentation

COUNTER_FOR_HIST_TYPE

#define COUNTER_FOR_HIST_TYPE

(

TYPE

)

Value:

((int) (TYPE) + GCOV_FIRST_VALUE_COUNTER)

Referenced by compute_value_histograms(), and instrument_values().

HIST_TYPE_FOR_COUNTER

#define HIST_TYPE_FOR_COUNTER

(

COUNTER

)

Value:

  ((enum hist_type) ((COUNTER) - GCOV_FIRST_VALUE_COUNTER))

Typedef Documentation

const_histogram_value

typedef const struct histogram_value_t* const_histogram_value

histogram_value

typedef struct histogram_value_t* histogram_value

histogram_values

typedef vec<histogram_value> histogram_values

Enumeration Type Documentation

hist_type

enum hist_type

Definitions for transformations based on profile information for values.
   Copyright (C) 2003-2024 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.   

Supported histogram types.   

Enumerator
HIST_TYPE_INTERVAL
HIST_TYPE_POW2
HIST_TYPE_TOPN_VALUES
HIST_TYPE_INDIR_CALL
HIST_TYPE_AVERAGE
HIST_TYPE_IOR
HIST_TYPE_TIME_PROFILE
HIST_TYPE_MAX

Function Documentation

branch_prob()

void branch_prob ( bool thunk )

extern

Instrument and/or analyze program behavior based on program the CFG.

This function creates a representation of the control flow graph (of
the function being compiled) that is suitable for the instrumentation
of edges and/or converting measured edge counts to counts on the
complete CFG.

When FLAG_PROFILE_ARCS is nonzero, this function instruments the edges in
the flow graph that are needed to reconstruct the dynamic behavior of the
flow graph.  This data is written to the gcno file for gcov.

When FLAG_PROFILE_CONDITIONS is nonzero, this functions instruments the
edges in the control flow graph to track what conditions are evaluated to in
order to determine what conditions are covered and have an independent
effect on the outcome (modified condition/decision coverage).  This data is
written to the gcno file for gcov.

When FLAG_BRANCH_PROBABILITIES is nonzero, this function reads auxiliary
information from the gcda file containing edge count information from
previous executions of the function being compiled.  In this case, the
control flow graph is annotated with actual execution counts by
compute_branch_probabilities().

Main entry point of this file.   

References hash_set< KeyId, Lazy, Traits >::add(), add_noreturn_fake_exit_edges(), alloc_aux_for_edges(), loop::any_estimate, cfun, compact_blocks(), compare_freqs(), compute_branch_probabilities(), compute_function_frequency(), compute_value_histograms(), hash_set< KeyId, Lazy, Traits >::contains(), basic_block_def::count, cov_blocks(), cov_free(), cov_length(), cov_maps(), cov_masks(), coverage_begin_function(), coverage_compute_cfg_checksum(), coverage_compute_lineno_checksum(), coverage_counter_alloc(), coverage_end_function(), create_edge_list(), curr_location, current_function_decl, DECL_SOURCE_LOCATION, dump_file, dump_flags, dump_function_to_file(), ECF_RETURNS_TWICE, EDGE_INFO, ENTRY_BLOCK_PTR_FOR_FN, EXIT_BLOCK_PTR_FOR_FN, expand_location(), expected_loop_iterations_by_profile(), find_conditions(), find_spanning_tree(), flow_call_edges_add(), FOR_BB_BETWEEN, FOR_EACH_BB_FN, FOR_EACH_EDGE, free_aux_for_edges(), free_edge_list(), gcc_assert, gcc_checking_assert, GCOV_ARC_FAKE, GCOV_ARC_FALLTHROUGH, GCOV_ARC_FALSE, GCOV_ARC_ON_TREE, GCOV_ARC_TRUE, GCOV_TAG_ARCS, GCOV_TAG_BLOCKS, GCOV_TAG_CONDS, gcov_write_length(), gcov_write_string(), gcov_write_tag(), gcov_write_unsigned(), gimple_call_builtin_p(), gimple_call_flags(), gimple_call_internal_fn(), gimple_call_internal_p(), gimple_filename(), gimple_find_values_to_profile(), gimple_has_location(), gimple_init_gcov_profiler(), gimple_lineno(), gimple_location(), gsi_commit_edge_inserts(), gsi_end_p(), gsi_last_nondebug_bb(), gsi_next(), gsi_prev_nondebug(), gsi_start_bb(), gsi_start_nondebug_after_labels_bb(), gsi_stmt(), loop::header, i, edge_profile_info::ignore, basic_block_def::index, INDEX_EDGE, instrument_decisions(), instrument_edges(), instrument_values(), profile_count::ipa(), is_gimple_call(), array_slice< T >::is_valid(), last, LOCATION_FILE, LOCATION_LINE, make_edge(), MAX, n_basic_blocks_for_fn, profile_count::nonzero_p(), NULL, NUM_EDGES, edge_list::num_edges, offset, edge_profile_info::on_tree, output_location(), basic_block_def::preds, PROFILE_READ, profile_status_for_fn, qsort, record_niter_bound(), remove_fake_edges(), report_predictor_hitrates(), RESERVED_LOCATION_P, single_succ_edge(), single_succ_p(), split_block_after_labels(), split_edge(), basic_block_def::succs, TDF_DETAILS, sreal::to_nearest_int(), total_num_blocks, total_num_conds, total_num_edges, total_num_edges_ignored, total_num_edges_instrumented, and total_num_times_called.

Referenced by tree_profiling().

dump_histograms_for_stmt()

void dump_histograms_for_stmt	(	struct function *	fun,
		FILE *	dump_file,
		gimple *	stmt )

Dump all histograms attached to STMT to DUMP_FILE.   

References dump_file, dump_histogram_value(), gimple_histogram_value(), histogram_value_t::hvalue, and histogram_value_t::next.

Referenced by gimple_dump_bb_buff(), and gimple_value_profile_transformations().

end_branch_prob()

void end_branch_prob ( void )

extern

Performs file-level cleanup after branch-prob processing
is completed.   

References dump_file, i, total_hist_br_prob, total_num_blocks, total_num_blocks_created, total_num_branches, total_num_conds, total_num_edges, total_num_edges_ignored, total_num_edges_instrumented, total_num_passes, and total_num_times_called.

Referenced by gcc::pass_manager::finish_optimization_passes().

find_func_by_profile_id()

struct cgraph_node * find_func_by_profile_id ( int profile_id )

extern

Return cgraph node for function with pid  

References cgraph_node_map, cgraph_node::get(), NULL, and cgraph_node::profile_id.

Referenced by speculative_call_summary::dump(), dump_ic_profile(), and ipa_profile().

free_histograms()

void free_histograms

(

function *

fn

)

References free_hist(), NULL, and VALUE_HISTOGRAMS.

Referenced by release_function_body().

get_nth_most_common_value()

bool get_nth_most_common_value	(	gimple *	stmt,
		const char *	counter_type,
		histogram_value	hist,
		gcov_type *	value,
		gcov_type *	count,
		gcov_type *	all,
		unsigned	n )

Return the n-th value count of TOPN_VALUE histogram.  If
there's a value, return true and set VALUE and COUNT
arguments.

Counters have the following meaning.

abs (counters[0]) is the number of executions
for i in 0 ... TOPN-1
  counters[2 * i + 2] is target
  counters[2 * i + 3] is corresponding hitrate counter.

Value of counters[0] negative when counter became
full during merging and some values are lost.   

References abs_hwi(), check_counter(), count, histogram_value_t::counters, dump_file, gimple_bb(), histogram_value_t::hvalue, i, PROFILE_REPRODUCIBILITY_MULTITHREADED, and PROFILE_REPRODUCIBILITY_PARALLEL_RUNS.

Referenced by dump_ic_profile(), gimple_divmod_fixed_value_transform(), gimple_stringops_transform(), and ipa_profile_generate_summary().

gimple_add_histogram_value()

void gimple_add_histogram_value	(	struct function *	fun,
		gimple *	stmt,
		histogram_value	hist )

Add histogram for STMT.   

References histogram_value_t::fun, gimple_histogram_value(), histogram_value_t::hvalue, histogram_value_t::next, and set_histogram_value().

Referenced by autofdo::afdo_indirect_call(), compute_value_histograms(), gimple_duplicate_stmt_histograms(), and stream_in_histogram_value().

gimple_alloc_histogram_value()

histogram_value gimple_alloc_histogram_value	(	struct function *	fun,
		enum hist_type	type,
		gimple *	stmt,
		tree	value )

Allocate histogram value.   

References histogram_value_t::hvalue, histogram_value_t::stmt, histogram_value_t::type, type(), and histogram_value_t::value.

Referenced by autofdo::afdo_indirect_call(), gimple_divmod_values_to_profile(), gimple_duplicate_stmt_histograms(), gimple_find_values_to_profile(), gimple_indirect_call_to_profile(), gimple_stringops_values_to_profile(), and stream_in_histogram_value().

gimple_duplicate_stmt_histograms()

void gimple_duplicate_stmt_histograms	(	struct function *	fun,
		gimple *	stmt,
		struct function *	ofun,
		gimple *	ostmt )

Duplicate all histograms associates with OSTMT to STMT.   

References histogram_value_t::counters, gimple_add_histogram_value(), gimple_alloc_histogram_value(), gimple_histogram_value(), histogram_value_t::hvalue, histogram_value_t::n_counters, histogram_value_t::next, NULL, histogram_value_t::stmt, and histogram_value_t::type.

Referenced by copy_bb(), gimple_duplicate_bb(), gsi_replace(), and move_block_to_fn().

gimple_find_values_to_profile()

void gimple_find_values_to_profile ( histogram_values * values )

extern

References cfun, dump_file, dump_histogram_value(), FOR_EACH_BB_FN, FOR_EACH_VEC_ELT, gcc_unreachable, GCOV_TOPN_MEM_COUNTERS, gimple_alloc_histogram_value(), gimple_values_to_profile(), gsi_end_p(), gsi_next(), gsi_start_bb(), gsi_stmt(), histogram_value_t::hdata, HIST_TYPE_AVERAGE, HIST_TYPE_INDIR_CALL, HIST_TYPE_INTERVAL, HIST_TYPE_IOR, HIST_TYPE_POW2, HIST_TYPE_TIME_PROFILE, HIST_TYPE_TOPN_VALUES, histogram_value_t::hvalue, i, histogram_value_t::intvl, histogram_value_t::n_counters, NULL, print_gimple_stmt(), histogram_value_t::steps, histogram_value_t::stmt, TDF_SLIM, and histogram_value_t::type.

Referenced by branch_prob().

gimple_gen_average_profiler()

void gimple_gen_average_profiler ( histogram_value value, unsigned tag )

extern

Output instructions as GIMPLE trees to increment the average histogram
counter.  VALUE is the expression whose value is profiled.  TAG is the
tag of the section for counters, BASE is offset of the counter position.   

References force_gimple_operand_gsi(), gimple_build_call(), gsi_for_stmt(), gsi_insert_before(), GSI_NEW_STMT, GSI_SAME_STMT, histogram_value_t::hvalue, NULL_TREE, prepare_instrumented_value(), histogram_value_t::stmt, tree_average_profiler_fn, and tree_coverage_counter_addr().

Referenced by instrument_values().

gimple_gen_edge_profiler()

void gimple_gen_edge_profiler ( int edgeno, edge e )

extern

Output instructions as GIMPLE trees to increment the edge
execution count, and insert them on E.   

References gen_counter_update(), gsi_last(), NULL_TREE, PENDING_STMT, and tree_coverage_counter_ref().

Referenced by instrument_edges().

gimple_gen_ic_func_profiler()

void gimple_gen_ic_func_profiler ( void )

extern

Output instructions as GIMPLE trees for code to find the most
common called function in indirect call. Insert instructions at the
beginning of every possible called function.

References build3(), build_addr(), build_int_cst(), cgraph_node::called_by_ifunc_resolver, cfun, current_function_decl, DECL_VIRTUAL_P, ENTRY_BLOCK_PTR_FOR_FN, force_gimple_operand_gsi(), gcov_type_node, cgraph_node::get(), gimple_build_call(), gimple_build_cond(), gimple_init_gcov_profiler(), gsi_after_labels(), gsi_insert_before(), GSI_NEW_STMT, GSI_SAME_STMT, gsi_start_bb(), ic_tuple_callee_field, ic_tuple_var, make_edge(), NULL, NULL_TREE, cgraph_node::only_called_directly_p(), cgraph_node::profile_id, ptr_type_node, single_succ_edge(), split_edge(), tree_indirect_call_profiler_fn, profile_probability::unlikely(), and profile_probability::very_likely().

Referenced by tree_profiling().

gimple_gen_ic_profiler()

void gimple_gen_ic_profiler ( histogram_value value, unsigned tag )

extern

Output instructions as GIMPLE trees for code to find the most
common called function in indirect call.
VALUE is the call expression whose indirect callee is profiled.
TAG is the tag of the section for counters.   

References build3(), build_pointer_type(), force_gimple_operand_gsi(), get_gcov_type(), gimple_build_assign(), gsi_for_stmt(), gsi_insert_before(), GSI_SAME_STMT, histogram_value_t::hvalue, ic_tuple_callee_field, ic_tuple_counters_field, ic_tuple_var, make_temp_ssa_name(), NULL, NULL_TREE, ptr_type_node, histogram_value_t::stmt, tree_coverage_counter_addr(), unshare_expr(), and histogram_value_t::value.

Referenced by instrument_values().

gimple_gen_interval_profiler()

void gimple_gen_interval_profiler ( histogram_value value, unsigned tag )

extern

Output instructions as GIMPLE trees to increment the interval histogram
counter.  VALUE is the expression whose value is profiled.  TAG is the
tag of the section for counters, BASE is offset of the counter position.   

References build_addr(), build_int_cst_type(), force_gimple_operand_gsi(), gimple_build_call(), gsi_for_stmt(), gsi_insert_before(), GSI_NEW_STMT, GSI_SAME_STMT, histogram_value_t::hdata, histogram_value_t::hvalue, histogram_value_t::int_start, integer_type_node, histogram_value_t::intvl, NULL_TREE, prepare_instrumented_value(), histogram_value_t::steps, histogram_value_t::stmt, tree_coverage_counter_ref(), tree_interval_profiler_fn, and unsigned_type_node.

Referenced by instrument_values().

gimple_gen_ior_profiler()

void gimple_gen_ior_profiler ( histogram_value value, unsigned tag )

extern

Output instructions as GIMPLE trees to increment the ior histogram
counter.  VALUE is the expression whose value is profiled.  TAG is the
tag of the section for counters, BASE is offset of the counter position.   

References force_gimple_operand_gsi(), gimple_build_call(), gsi_for_stmt(), gsi_insert_before(), GSI_NEW_STMT, GSI_SAME_STMT, histogram_value_t::hvalue, NULL_TREE, prepare_instrumented_value(), histogram_value_t::stmt, tree_coverage_counter_addr(), and tree_ior_profiler_fn.

Referenced by instrument_values().

gimple_gen_pow2_profiler()

void gimple_gen_pow2_profiler ( histogram_value value, unsigned tag )

extern

Output instructions as GIMPLE trees to increment the power of two histogram
counter.  VALUE is the expression whose value is profiled.  TAG is the tag
of the section for counters.   

References force_gimple_operand_gsi(), gimple_build_call(), gsi_for_stmt(), gsi_insert_before(), GSI_NEW_STMT, GSI_SAME_STMT, histogram_value_t::hvalue, NULL_TREE, prepare_instrumented_value(), histogram_value_t::stmt, tree_coverage_counter_addr(), and tree_pow2_profiler_fn.

Referenced by instrument_values().

gimple_gen_time_profiler()

void gimple_gen_time_profiler ( unsigned tag )

extern

Output instructions as GIMPLE tree at the beginning for each function.
TAG is the tag of the section for counters, BASE is offset of the
counter position and GSI is the iterator we place the counter.   

References build_int_cst(), cfun, ENTRY_BLOCK_PTR_FOR_FN, force_gimple_operand_gsi(), gen_counter_update(), get_gcov_type(), gimple_build_cond(), gsi_insert_before(), GSI_NEW_STMT, GSI_SAME_STMT, gsi_start_bb(), make_edge(), NULL, NULL_TREE, single_succ_edge(), split_edge(), tree_coverage_counter_ref(), tree_time_profiler_counter, and profile_probability::unlikely().

Referenced by instrument_values().

gimple_gen_topn_values_profiler()

void gimple_gen_topn_values_profiler ( histogram_value value, unsigned tag )

extern

Output instructions as GIMPLE trees for code to find the most N common
values.  VALUE is the expression whose value is profiled.  TAG is the tag
of the section for counters.   

References force_gimple_operand_gsi(), gimple_build_call(), gsi_for_stmt(), gsi_insert_before(), GSI_NEW_STMT, GSI_SAME_STMT, histogram_value_t::hvalue, NULL_TREE, prepare_instrumented_value(), histogram_value_t::stmt, tree_coverage_counter_addr(), and tree_topn_values_profiler_fn.

Referenced by instrument_values().

gimple_histogram_value()

histogram_value gimple_histogram_value	(	struct function *	fun,
		gimple *	stmt )

Get histogram list for STMT.   

References NULL, and VALUE_HISTOGRAMS.

Referenced by dump_histograms_for_stmt(), gimple_add_histogram_value(), gimple_duplicate_stmt_histograms(), gimple_histogram_value_of_type(), gimple_move_stmt_histograms(), gimple_remove_histogram_value(), gimple_remove_stmt_histograms(), gimple_value_profile_transformations(), output_gimple_stmt(), and verify_histograms().

gimple_histogram_value_of_type()

histogram_value gimple_histogram_value_of_type	(	struct function *	fun,
		gimple *	stmt,
		enum hist_type	type )

Lookup histogram of type TYPE in the STMT.   

References gimple_histogram_value(), histogram_value_t::hvalue, histogram_value_t::next, NULL, and histogram_value_t::type.

Referenced by dump_ic_profile(), gimple_divmod_fixed_value_transform(), gimple_mod_pow2_value_transform(), gimple_mod_subtract_transform(), gimple_stringops_transform(), ipa_profile_generate_summary(), and stringop_block_profile().

gimple_ic()

gcall * gimple_ic	(	gcall *	icall_stmt,
		struct cgraph_node *	direct_call,
		profile_probability	prob )

Do transformation

if (actual_callee_address == address_of_most_common_function/method)
  do direct call
else
  old call

References add_phi_arg(), add_stmt_to_eh_lp(), profile_probability::always(), profile_count::apply_probability(), as_a(), build_addr(), cfun, basic_block_def::count, create_phi_node(), symtab_node::decl, duplicate_ssa_name(), ECF_NORETURN, find_fallthru_edge(), basic_block_def::flags, flags_from_decl_or_type(), fold_convert, FOR_EACH_EDGE, gimple_bb(), gimple_build_assign(), gimple_build_cond(), gimple_call_fn(), gimple_call_lhs(), gimple_call_set_fndecl(), gimple_call_set_lhs(), gimple_copy(), gimple_purge_dead_eh_edges(), gimple_set_vdef(), gimple_set_vuse(), gimple_vdef(), gsi_end_p(), gsi_for_stmt(), gsi_insert_before(), gsi_next(), GSI_SAME_STMT, gsi_start_phis(), profile_probability::invert(), lookup_stmt_eh_lp(), make_edge(), make_temp_ssa_name(), NULL, NULL_TREE, PHI_ARG_DEF_FROM_EDGE, PHI_ARG_DEF_PTR_FROM_EDGE, ptr_type_node, release_ssa_name(), remove_edge(), SET_USE, should_remove_lhs_p(), single_pred_edge(), split_block(), split_edge(), stmt_could_throw_p(), stmt_ends_bb_p(), basic_block_def::succs, TREE_CODE, UNKNOWN_LOCATION, unlink_stmt_vdef(), unshare_expr(), and update_stmt().

Referenced by cgraph_edge::redirect_call_stmt_to_callee().

gimple_init_gcov_profiler()

void gimple_init_gcov_profiler ( void )

extern

In tree-profile.cc.   

Create the type and function decls for the interface with gcov.   

References build_decl(), build_fn_decl(), build_function_type_list(), build_pointer_type(), CONST_CAST, DECL_ARTIFICIAL, DECL_ASSEMBLER_NAME, DECL_ATTRIBUTES, DECL_EXTERNAL, DECL_INITIAL, free(), gcov_type_node, get_gcov_type(), get_identifier(), init_ic_make_global_vars(), integer_type_node, NULL, NULL_TREE, PROFILE_UPDATE_ATOMIC, ptr_type_node, tree_average_profiler_fn, tree_cons(), tree_indirect_call_profiler_fn, tree_interval_profiler_fn, tree_ior_profiler_fn, TREE_NOTHROW, tree_pow2_profiler_fn, TREE_PUBLIC, TREE_STATIC, tree_time_profiler_counter, tree_topn_values_profiler_fn, UNKNOWN_LOCATION, unsigned_type_node, and void_type_node.

Referenced by branch_prob(), and gimple_gen_ic_func_profiler().

gimple_move_stmt_histograms()

void gimple_move_stmt_histograms	(	struct function *	fun,
		gimple *	stmt,
		gimple *	ostmt )

Move all histograms associated with OSTMT to STMT.   

References gimple_histogram_value(), histogram_value_t::hvalue, histogram_value_t::next, NULL, set_histogram_value(), and histogram_value_t::stmt.

gimple_remove_histogram_value()

void gimple_remove_histogram_value	(	struct function *	fun,
		gimple *	stmt,
		histogram_value	hist )

Remove histogram HIST from STMT's histogram list.   

References histogram_value_t::counters, free(), gimple_histogram_value(), histogram_value_t::hvalue, histogram_value_t::next, and set_histogram_value().

Referenced by autofdo::afdo_indirect_call(), gimple_divmod_fixed_value_transform(), gimple_mod_pow2_value_transform(), gimple_mod_subtract_transform(), gimple_remove_stmt_histograms(), gimple_stringops_transform(), ipa_profile_generate_summary(), and stringop_block_profile().

gimple_remove_stmt_histograms()

void gimple_remove_stmt_histograms	(	struct function *	fun,
		gimple *	stmt )

Remove all histograms associated with STMT.   

References gimple_histogram_value(), gimple_remove_histogram_value(), and NULL.

Referenced by gsi_remove(), gsi_replace(), and move_block_to_fn().

gimple_value_profile_transformations()

bool gimple_value_profile_transformations ( void )

extern

GIMPLE based transformations.  

References cfun, changed, dump_enabled_p(), dump_file, dump_histograms_for_stmt(), dump_ic_profile(), FOR_EACH_BB_FN, gimple_bb(), gimple_divmod_fixed_value_transform(), gimple_histogram_value(), gimple_mod_pow2_value_transform(), gimple_mod_subtract_transform(), gimple_stringops_transform(), gsi_end_p(), gsi_for_stmt(), gsi_next(), gsi_start_bb(), gsi_stmt(), print_gimple_stmt(), and TDF_SLIM.

Referenced by autofdo::afdo_annotate_cfg(), and tree_profiling().

init_branch_prob()

void init_branch_prob ( void )

extern

In profile.cc.   

Perform file-level initialization for branch-prob processing.   

References i, total_hist_br_prob, total_num_blocks, total_num_blocks_created, total_num_branches, total_num_conds, total_num_edges, total_num_edges_ignored, total_num_edges_instrumented, total_num_passes, and total_num_times_called.

read_thunk_profile()

void read_thunk_profile ( struct cgraph_node * node )

extern

Only read execution count for thunks.   

References cgraph_node::callees, cgraph_edge::count, cgraph_node::count, current_function_decl, symtab_node::decl, free(), profile_count::from_gcov_type(), and get_coverage_counts().

Referenced by tree_profiling().

stream_in_histogram_value()

void stream_in_histogram_value ( class lto_input_block * ib, gimple * stmt )

extern

Dump information about HIST to DUMP_FILE.   

References bp_unpack_enum, bp_unpack_value(), cfun, histogram_value_t::counters, gcc_unreachable, gimple_add_histogram_value(), gimple_alloc_histogram_value(), histogram_value_t::hdata, HIST_TYPE_AVERAGE, HIST_TYPE_INDIR_CALL, HIST_TYPE_INTERVAL, HIST_TYPE_IOR, HIST_TYPE_MAX, HIST_TYPE_POW2, HIST_TYPE_TIME_PROFILE, HIST_TYPE_TOPN_VALUES, histogram_value_t::hvalue, i, histogram_value_t::int_start, histogram_value_t::intvl, histogram_value_t::n_counters, histogram_value_t::next, NULL, histogram_value_t::steps, streamer_read_bitpack(), streamer_read_gcov_count(), streamer_read_hwi(), streamer_read_uhwi(), and type().

Referenced by input_gimple_stmt().

stream_out_histogram_value()

void stream_out_histogram_value ( struct output_block * ob, histogram_value hist )

extern

Dump information about HIST to DUMP_FILE.   

References bitpack_create(), bp_pack_enum, bp_pack_value(), histogram_value_t::counters, histogram_value_t::hdata, HIST_TYPE_INTERVAL, HIST_TYPE_MAX, histogram_value_t::hvalue, i, histogram_value_t::int_start, histogram_value_t::intvl, output_block::main_stream, histogram_value_t::n_counters, histogram_value_t::next, NULL, histogram_value_t::steps, stream_out_histogram_value(), streamer_write_bitpack(), streamer_write_gcov_count(), streamer_write_hwi(), streamer_write_uhwi(), and histogram_value_t::type.

Referenced by output_gimple_stmt(), and stream_out_histogram_value().

stringop_block_profile()

void stringop_block_profile	(	gimple *	stmt,
		unsigned int *	expected_align,
		HOST_WIDE_INT *	expected_size )

References cfun, count, gimple_histogram_value_of_type(), gimple_remove_histogram_value(), HIST_TYPE_AVERAGE, HIST_TYPE_IOR, histogram, INT_MAX, and UINT_MAX.

Referenced by expand_builtin_memory_copy_args(), and expand_builtin_memset_args().

verify_histograms()

void verify_histograms

(

void

)

Verify sanity of the histograms.   

References hash_set< KeyId, Lazy, Traits >::add(), cfun, debug_gimple_stmt(), dump_histogram_value(), error(), error_found, FOR_EACH_BB_FN, gimple_histogram_value(), gsi_end_p(), gsi_next(), gsi_start_bb(), gsi_stmt(), histogram_value_t::hvalue, internal_error(), histogram_value_t::next, histogram_value_t::stmt, VALUE_HISTOGRAMS, and visit_hist().

Referenced by verify_gimple_in_cfg().