11cb0ef41Sopenharmony_ci// Copyright 2016 the V8 project authors. All rights reserved. 21cb0ef41Sopenharmony_ci// Use of this source code is governed by a BSD-style license that can be 31cb0ef41Sopenharmony_ci// found in the LICENSE file. 41cb0ef41Sopenharmony_ci 51cb0ef41Sopenharmony_ci#ifndef V8_IC_IC_STATS_H_ 61cb0ef41Sopenharmony_ci#define V8_IC_IC_STATS_H_ 71cb0ef41Sopenharmony_ci 81cb0ef41Sopenharmony_ci#include <memory> 91cb0ef41Sopenharmony_ci#include <string> 101cb0ef41Sopenharmony_ci#include <unordered_map> 111cb0ef41Sopenharmony_ci#include <vector> 121cb0ef41Sopenharmony_ci 131cb0ef41Sopenharmony_ci#include "include/v8-internal.h" // For Address. 141cb0ef41Sopenharmony_ci#include "src/base/atomicops.h" 151cb0ef41Sopenharmony_ci#include "src/base/lazy-instance.h" 161cb0ef41Sopenharmony_ci 171cb0ef41Sopenharmony_cinamespace v8 { 181cb0ef41Sopenharmony_ci 191cb0ef41Sopenharmony_cinamespace tracing { 201cb0ef41Sopenharmony_ciclass TracedValue; 211cb0ef41Sopenharmony_ci} // namespace tracing 221cb0ef41Sopenharmony_ci 231cb0ef41Sopenharmony_cinamespace internal { 241cb0ef41Sopenharmony_ci 251cb0ef41Sopenharmony_ciclass JSFunction; 261cb0ef41Sopenharmony_ciclass Script; 271cb0ef41Sopenharmony_ci 281cb0ef41Sopenharmony_cistruct ICInfo { 291cb0ef41Sopenharmony_ci ICInfo(); 301cb0ef41Sopenharmony_ci void Reset(); 311cb0ef41Sopenharmony_ci void AppendToTracedValue(v8::tracing::TracedValue* value) const; 321cb0ef41Sopenharmony_ci std::string type; 331cb0ef41Sopenharmony_ci const char* function_name; 341cb0ef41Sopenharmony_ci int script_offset; 351cb0ef41Sopenharmony_ci const char* script_name; 361cb0ef41Sopenharmony_ci int line_num; 371cb0ef41Sopenharmony_ci int column_num; 381cb0ef41Sopenharmony_ci bool is_constructor; 391cb0ef41Sopenharmony_ci bool is_optimized; 401cb0ef41Sopenharmony_ci std::string state; 411cb0ef41Sopenharmony_ci // Address of the map. 421cb0ef41Sopenharmony_ci void* map; 431cb0ef41Sopenharmony_ci // Whether map is a dictionary map. 441cb0ef41Sopenharmony_ci bool is_dictionary_map; 451cb0ef41Sopenharmony_ci // Number of own descriptors. 461cb0ef41Sopenharmony_ci unsigned number_of_own_descriptors; 471cb0ef41Sopenharmony_ci std::string instance_type; 481cb0ef41Sopenharmony_ci}; 491cb0ef41Sopenharmony_ci 501cb0ef41Sopenharmony_ciclass ICStats { 511cb0ef41Sopenharmony_ci public: 521cb0ef41Sopenharmony_ci const int MAX_IC_INFO = 4096; 531cb0ef41Sopenharmony_ci 541cb0ef41Sopenharmony_ci ICStats(); 551cb0ef41Sopenharmony_ci void Dump(); 561cb0ef41Sopenharmony_ci void Begin(); 571cb0ef41Sopenharmony_ci void End(); 581cb0ef41Sopenharmony_ci void Reset(); 591cb0ef41Sopenharmony_ci V8_INLINE ICInfo& Current() { 601cb0ef41Sopenharmony_ci DCHECK(pos_ >= 0 && pos_ < MAX_IC_INFO); 611cb0ef41Sopenharmony_ci return ic_infos_[pos_]; 621cb0ef41Sopenharmony_ci } 631cb0ef41Sopenharmony_ci const char* GetOrCacheScriptName(Script script); 641cb0ef41Sopenharmony_ci const char* GetOrCacheFunctionName(JSFunction function); 651cb0ef41Sopenharmony_ci V8_INLINE static ICStats* instance() { return instance_.Pointer(); } 661cb0ef41Sopenharmony_ci 671cb0ef41Sopenharmony_ci private: 681cb0ef41Sopenharmony_ci static base::LazyInstance<ICStats>::type instance_; 691cb0ef41Sopenharmony_ci base::Atomic32 enabled_; 701cb0ef41Sopenharmony_ci std::vector<ICInfo> ic_infos_; 711cb0ef41Sopenharmony_ci // Keys are Script pointers; uses raw Address to keep includes light. 721cb0ef41Sopenharmony_ci std::unordered_map<Address, std::unique_ptr<char[]>> script_name_map_; 731cb0ef41Sopenharmony_ci // Keys are JSFunction pointers; uses raw Address to keep includes light. 741cb0ef41Sopenharmony_ci std::unordered_map<Address, std::unique_ptr<char[]>> function_name_map_; 751cb0ef41Sopenharmony_ci int pos_; 761cb0ef41Sopenharmony_ci}; 771cb0ef41Sopenharmony_ci 781cb0ef41Sopenharmony_ci} // namespace internal 791cb0ef41Sopenharmony_ci} // namespace v8 801cb0ef41Sopenharmony_ci 811cb0ef41Sopenharmony_ci#endif // V8_IC_IC_STATS_H_ 82