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      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 #include <memory>
      6 
      7 #include "src/compilation-info.h"
      8 #include "src/compiler/pipeline-statistics.h"
      9 #include "src/compiler/zone-stats.h"
     10 #include "src/isolate.h"
     11 
     12 namespace v8 {
     13 namespace internal {
     14 namespace compiler {
     15 
     16 void PipelineStatistics::CommonStats::Begin(
     17     PipelineStatistics* pipeline_stats) {
     18   DCHECK(!scope_);
     19   scope_.reset(new ZoneStats::StatsScope(pipeline_stats->zone_stats_));
     20   timer_.Start();
     21   outer_zone_initial_size_ = pipeline_stats->OuterZoneSize();
     22   allocated_bytes_at_start_ =
     23       outer_zone_initial_size_ -
     24       pipeline_stats->total_stats_.outer_zone_initial_size_ +
     25       pipeline_stats->zone_stats_->GetCurrentAllocatedBytes();
     26 }
     27 
     28 
     29 void PipelineStatistics::CommonStats::End(
     30     PipelineStatistics* pipeline_stats,
     31     CompilationStatistics::BasicStats* diff) {
     32   DCHECK(scope_);
     33   diff->function_name_ = pipeline_stats->function_name_;
     34   diff->delta_ = timer_.Elapsed();
     35   size_t outer_zone_diff =
     36       pipeline_stats->OuterZoneSize() - outer_zone_initial_size_;
     37   diff->max_allocated_bytes_ = outer_zone_diff + scope_->GetMaxAllocatedBytes();
     38   diff->absolute_max_allocated_bytes_ =
     39       diff->max_allocated_bytes_ + allocated_bytes_at_start_;
     40   diff->total_allocated_bytes_ =
     41       outer_zone_diff + scope_->GetTotalAllocatedBytes();
     42   scope_.reset();
     43   timer_.Stop();
     44 }
     45 
     46 PipelineStatistics::PipelineStatistics(CompilationInfo* info,
     47                                        ZoneStats* zone_stats)
     48     : isolate_(info->isolate()),
     49       outer_zone_(info->zone()),
     50       zone_stats_(zone_stats),
     51       compilation_stats_(isolate_->GetTurboStatistics()),
     52       source_size_(0),
     53       phase_kind_name_(nullptr),
     54       phase_name_(nullptr) {
     55   if (info->has_shared_info()) {
     56     source_size_ = static_cast<size_t>(info->shared_info()->SourceSize());
     57     std::unique_ptr<char[]> name =
     58         info->shared_info()->DebugName()->ToCString();
     59     function_name_ = name.get();
     60   }
     61   total_stats_.Begin(this);
     62 }
     63 
     64 
     65 PipelineStatistics::~PipelineStatistics() {
     66   if (InPhaseKind()) EndPhaseKind();
     67   CompilationStatistics::BasicStats diff;
     68   total_stats_.End(this, &diff);
     69   compilation_stats_->RecordTotalStats(source_size_, diff);
     70 }
     71 
     72 
     73 void PipelineStatistics::BeginPhaseKind(const char* phase_kind_name) {
     74   DCHECK(!InPhase());
     75   if (InPhaseKind()) EndPhaseKind();
     76   phase_kind_name_ = phase_kind_name;
     77   phase_kind_stats_.Begin(this);
     78 }
     79 
     80 
     81 void PipelineStatistics::EndPhaseKind() {
     82   DCHECK(!InPhase());
     83   CompilationStatistics::BasicStats diff;
     84   phase_kind_stats_.End(this, &diff);
     85   compilation_stats_->RecordPhaseKindStats(phase_kind_name_, diff);
     86 }
     87 
     88 
     89 void PipelineStatistics::BeginPhase(const char* name) {
     90   DCHECK(InPhaseKind());
     91   phase_name_ = name;
     92   phase_stats_.Begin(this);
     93 }
     94 
     95 
     96 void PipelineStatistics::EndPhase() {
     97   DCHECK(InPhaseKind());
     98   CompilationStatistics::BasicStats diff;
     99   phase_stats_.End(this, &diff);
    100   compilation_stats_->RecordPhaseStats(phase_kind_name_, phase_name_, diff);
    101 }
    102 
    103 }  // namespace compiler
    104 }  // namespace internal
    105 }  // namespace v8
    106