1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_COMPILER_PIPELINE_STATISTICS_H_ 6 #define V8_COMPILER_PIPELINE_STATISTICS_H_ 7 8 #include <memory> 9 #include <string> 10 11 #include "src/base/platform/elapsed-timer.h" 12 #include "src/compiler/zone-stats.h" 13 #include "src/diagnostics/compilation-statistics.h" 14 #include "src/objects/code-kind.h" 15 #include "src/tracing/trace-event.h" 16 17 namespace v8 { 18 namespace internal { 19 namespace compiler { 20 21 class PhaseScope; 22 23 class PipelineStatistics : public Malloced { 24 public: 25 PipelineStatistics(OptimizedCompilationInfo* info, 26 CompilationStatistics* turbo_stats, ZoneStats* zone_stats); 27 ~PipelineStatistics(); 28 PipelineStatistics(const PipelineStatistics&) = delete; 29 PipelineStatistics& operator=(const PipelineStatistics&) = delete; 30 31 void BeginPhaseKind(const char* phase_kind_name); 32 void EndPhaseKind(); 33 34 // We log detailed phase information about the pipeline 35 // in both the v8.turbofan and the v8.wasm.turbofan categories. 36 static constexpr char kTraceCategory[] = 37 TRACE_DISABLED_BY_DEFAULT("v8.turbofan") "," // -- 38 TRACE_DISABLED_BY_DEFAULT("v8.wasm.turbofan"); 39 40 private: OuterZoneSize()41 size_t OuterZoneSize() { 42 return static_cast<size_t>(outer_zone_->allocation_size()); 43 } 44 45 class CommonStats { 46 public: CommonStats()47 CommonStats() : outer_zone_initial_size_(0) {} 48 CommonStats(const CommonStats&) = delete; 49 CommonStats& operator=(const CommonStats&) = delete; 50 51 void Begin(PipelineStatistics* pipeline_stats); 52 void End(PipelineStatistics* pipeline_stats, 53 CompilationStatistics::BasicStats* diff); 54 55 std::unique_ptr<ZoneStats::StatsScope> scope_; 56 base::ElapsedTimer timer_; 57 size_t outer_zone_initial_size_; 58 size_t allocated_bytes_at_start_; 59 }; 60 InPhaseKind()61 bool InPhaseKind() { return !!phase_kind_stats_.scope_; } 62 63 friend class PhaseScope; InPhase()64 bool InPhase() { return !!phase_stats_.scope_; } 65 void BeginPhase(const char* name); 66 void EndPhase(); 67 68 Zone* outer_zone_; 69 ZoneStats* zone_stats_; 70 CompilationStatistics* compilation_stats_; 71 CodeKind code_kind_; 72 std::string function_name_; 73 74 // Stats for the entire compilation. 75 CommonStats total_stats_; 76 77 // Stats for phase kind. 78 const char* phase_kind_name_; 79 CommonStats phase_kind_stats_; 80 81 // Stats for phase. 82 const char* phase_name_; 83 CommonStats phase_stats_; 84 }; 85 86 class V8_NODISCARD PhaseScope { 87 public: PhaseScope(PipelineStatistics * pipeline_stats,const char * name)88 PhaseScope(PipelineStatistics* pipeline_stats, const char* name) 89 : pipeline_stats_(pipeline_stats) { 90 if (pipeline_stats_ != nullptr) pipeline_stats_->BeginPhase(name); 91 } ~PhaseScope()92 ~PhaseScope() { 93 if (pipeline_stats_ != nullptr) pipeline_stats_->EndPhase(); 94 } 95 PhaseScope(const PhaseScope&) = delete; 96 PhaseScope& operator=(const PhaseScope&) = delete; 97 98 private: 99 PipelineStatistics* const pipeline_stats_; 100 }; 101 102 } // namespace compiler 103 } // namespace internal 104 } // namespace v8 105 106 #endif // V8_COMPILER_PIPELINE_STATISTICS_H_ 107