profile-count.h File Reference

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Data Structures
class	profile_probability
struct	profile_count

Macros
#define	REG_BR_PROB_BASE   10000
#define	RDIV(X, Y)
#define	UINT64_BIT_FIELD_ALIGN

Enumerations
enum	profile_quality {   UNINITIALIZED_PROFILE , GUESSED_LOCAL , GUESSED_GLOBAL0 , GUESSED_GLOBAL0_ADJUSTED ,   GUESSED , AFDO , ADJUSTED , PRECISE }

Functions
const char *	profile_quality_as_string (enum profile_quality)
bool	parse_profile_quality (const char *value, profile_quality *quality)
bool	slow_safe_scale_64bit (uint64_t a, uint64_t b, uint64_t c, uint64_t *res)
bool	safe_scale_64bit (uint64_t a, uint64_t b, uint64_t c, uint64_t *res)

Macro Definition Documentation

RDIV

#define RDIV	(		X,
			Y )

Value:

(((X) + (Y) / 2) / (Y))

Referenced by profile_probability::apply(), ipa_call_context::estimate_size_and_time(), expr_expected_value_1(), profile_probability::from_reg_br_prob_base(), ipa_update_overall_fn_summary(), merge_profile_summaries(), profile_probability::operator*(), profile_probability::operator*=(), profile_probability::operator/(), profile_probability::operator/=(), predict_loops(), profile_count::probability_in(), profile_probability::sqrt(), and profile_probability::to_reg_br_prob_base().

REG_BR_PROB_BASE

#define REG_BR_PROB_BASE   10000

The base value for branch probability notes and edge probabilities.   

Referenced by analyze_function_body(), profile_count::apply_probability(), cheap_bb_rtx_cost_p(), check_bb_profile(), check_probability(), combine_predictions_for_bb(), combine_predictions_for_insn(), compute_branch_probabilities(), create_coalesce_list_for_region(), draw_cfg_node_succ_edges(), speculative_call_summary::dump(), dump_ipa_call_summary(), dump_prediction(), dump_probability(), edge_predicted_by_p(), predictor_hash::equal(), ipa_call_context::estimate_size_and_time(), expected_loop_iterations(), expr_expected_value_1(), find_best_predecessor(), find_traces(), profile_probability::from_reg_br_prob_base(), predictor_hash::hash(), input_bb(), inverse_probability(), invert_br_probabilities(), ipa_merge_fn_summary_after_inlining(), ipa_profile(), merge_profile_summaries(), mostly_true_jump(), param_change_prob(), predict_edge_def(), predict_insn_def(), predict_iv_comparison(), predict_loops(), predictable_edge_p(), ipa_predicate::probability(), prune_predictions_for_bb(), rtl_predict_edge(), tail_duplicate(), profile_count::to_frequency(), profile_probability::to_reg_br_prob_base(), tree_predict_by_opcode(), and inline_param_summary::useless_p().

UINT64_BIT_FIELD_ALIGN

#define UINT64_BIT_FIELD_ALIGN

Enumeration Type Documentation

profile_quality

enum profile_quality

Quality of the profile count.  Because gengtype does not support enums
inside of classes, this is in global namespace.   

Enumerator
UNINITIALIZED_PROFILE
GUESSED_LOCAL
GUESSED_GLOBAL0
GUESSED_GLOBAL0_ADJUSTED
GUESSED
AFDO
ADJUSTED
PRECISE

Function Documentation

parse_profile_quality()

bool parse_profile_quality ( const char * value, profile_quality * quality )

extern

Parse VALUE as profile quality and return true when a valid QUALITY.   

References i, and profile_quality_names.

profile_quality_as_string()

const char * profile_quality_as_string ( enum profile_quality quality )

extern

Get a string describing QUALITY.   

References profile_quality_names.

Referenced by dump_function_to_file(), dump_gimple_bb_header(), pp_cfg_jump(), and optrecord_json_writer::profile_count_to_json().

safe_scale_64bit()

bool safe_scale_64bit ( uint64_t a, uint64_t b, uint64_t c, uint64_t * res )

inline

Compute RES=(a*b + c/2)/c capping and return false if overflow happened.   

References a, b, and slow_safe_scale_64bit().

Referenced by profile_count::apply_probability(), profile_count::apply_probability(), profile_count::apply_scale(), profile_count::apply_scale(), profile_probability::apply_scale(), profile_probability::apply_scale(), profile_count::differs_from_p(), profile_probability::probability_in_gcov_type(), and profile_count::to_cgraph_frequency().

slow_safe_scale_64bit()

bool slow_safe_scale_64bit	(	uint64_t	a,
		uint64_t	b,
		uint64_t	c,
		uint64_t *	res )

Compute RES=(a*b + c/2)/c capping and return false if overflow happened.   

References a, b, wi::fits_uhwi_p(), FIXED_WIDE_INT, gcc_checking_assert, wi::udiv_floor(), and wi::umul().

Referenced by safe_scale_64bit().