[turbofan] add absolute peak to stats

R=danno@chromium.org

BUG=

Review URL: https://codereview.chromium.org/676693002

Cr-Commit-Position: refs/heads/master@{#24892}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24892 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/compilation-statistics.cc

@@ -47,7 +47,8 @@ void CompilationStatistics::RecordTotalStats(size_t source_size,
 void CompilationStatistics::BasicStats::Accumulate(const BasicStats& stats) {
   delta_ += stats.delta_;
   total_allocated_bytes_ += stats.total_allocated_bytes_;
-  if (stats.max_allocated_bytes_ > max_allocated_bytes_) {
+  if (stats.absolute_max_allocated_bytes_ > absolute_max_allocated_bytes_) {
+    absolute_max_allocated_bytes_ = stats.absolute_max_allocated_bytes_;
     max_allocated_bytes_ = stats.max_allocated_bytes_;
     function_name_ = stats.function_name_;
   }
@@ -66,9 +67,12 @@ static void WriteLine(std::ostream& os, const char* name,
       static_cast<double>(stats.total_allocated_bytes_ * 100) /
       static_cast<double>(total_stats.total_allocated_bytes_);
   base::OS::SNPrintF(buffer, kBufferSize,
-                     "%28s %10.3f ms / %5.1f %% %10u total / %5.1f %% %10u max",
+                     "%28s %10.3f ms / %5.1f %%"
+                     "%10u total / %5.1f %% "
+                     "%10u max %10u abs_max",
                      name, ms, percent, stats.total_allocated_bytes_,
-                     size_percent, stats.max_allocated_bytes_);
+                     size_percent, stats.max_allocated_bytes_,
+                     stats.absolute_max_allocated_bytes_);
 
   os << buffer;
   if (stats.function_name_.size() > 0) {
@@ -79,8 +83,8 @@ static void WriteLine(std::ostream& os, const char* name,
 
 
 static void WriteFullLine(std::ostream& os) {
-  os << "-----------------------------------------------"
-        "-----------------------------------------------\n";
+  os << "--------------------------------------------------------"
+        "--------------------------------------------------------\n";
 }
 
 
@@ -92,8 +96,8 @@ static void WriteHeader(std::ostream& os) {
 
 
 static void WritePhaseKindBreak(std::ostream& os) {
-  os << "                             ------------------"
-        "-----------------------------------------------\n";
+  os << "                             ---------------------------"
+        "--------------------------------------------------------\n";
 }
 
 

src/compilation-statistics.h

@@ -22,13 +22,17 @@ class CompilationStatistics FINAL : public Malloced {
 
   class BasicStats {
    public:
-    BasicStats() : total_allocated_bytes_(0), max_allocated_bytes_(0) {}
+    BasicStats()
+        : total_allocated_bytes_(0),
+          max_allocated_bytes_(0),
+          absolute_max_allocated_bytes_(0) {}
 
     void Accumulate(const BasicStats& stats);
 
     base::TimeDelta delta_;
     size_t total_allocated_bytes_;
     size_t max_allocated_bytes_;
+    size_t absolute_max_allocated_bytes_;
     std::string function_name_;
   };
 

src/compiler/pipeline-statistics.cc

@@ -16,6 +16,10 @@ void PipelineStatistics::CommonStats::Begin(
   scope_.Reset(new ZonePool::StatsScope(pipeline_stats->zone_pool_));
   timer_.Start();
   outer_zone_initial_size_ = pipeline_stats->OuterZoneSize();
+  allocated_bytes_at_start_ =
+      outer_zone_initial_size_ -
+      pipeline_stats->total_stats_.outer_zone_initial_size_ +
+      pipeline_stats->zone_pool_->GetCurrentAllocatedBytes();
 }
 
 
@@ -28,6 +32,8 @@ void PipelineStatistics::CommonStats::End(
   size_t outer_zone_diff =
       pipeline_stats->OuterZoneSize() - outer_zone_initial_size_;
   diff->max_allocated_bytes_ = outer_zone_diff + scope_->GetMaxAllocatedBytes();
+  diff->absolute_max_allocated_bytes_ =
+      diff->max_allocated_bytes_ + allocated_bytes_at_start_;
   diff->total_allocated_bytes_ =
       outer_zone_diff + scope_->GetTotalAllocatedBytes();
   scope_.Reset(NULL);

src/compiler/pipeline-statistics.h

@@ -39,6 +39,7 @@ class PipelineStatistics : public Malloced {
     SmartPointer<ZonePool::StatsScope> scope_;
     base::ElapsedTimer timer_;
     size_t outer_zone_initial_size_;
+    size_t allocated_bytes_at_start_;
   };
 
   bool InPhaseKind() { return !phase_kind_stats_.scope_.is_empty(); }

src/compiler/pipeline.cc

@@ -157,7 +157,7 @@ Handle<Code> Pipeline::GenerateCode() {
   SmartPointer<PipelineStatistics> pipeline_statistics;
   if (FLAG_turbo_stats) {
     pipeline_statistics.Reset(new PipelineStatistics(info(), &zone_pool));
-    pipeline_statistics->BeginPhaseKind("create graph");
+    pipeline_statistics->BeginPhaseKind("graph creation");
   }
 
   if (FLAG_trace_turbo) {
@@ -326,7 +326,7 @@ Handle<Code> Pipeline::GenerateCode() {
   }
 
   if (!pipeline_statistics.is_empty()) {
-    pipeline_statistics->BeginPhaseKind("code generation");
+    pipeline_statistics->BeginPhaseKind("block building");
   }
 
   source_positions.RemoveDecorator();
@@ -430,6 +430,10 @@ Handle<Code> Pipeline::GenerateCode(PipelineStatistics* pipeline_statistics,
     tcf << AsC1V("CodeGen", schedule, source_positions, &sequence);
   }
 
+  if (pipeline_statistics != NULL) {
+    pipeline_statistics->BeginPhaseKind("register allocation");
+  }
+
   // Allocate registers.
   Frame frame;
   {
@@ -457,6 +461,10 @@ Handle<Code> Pipeline::GenerateCode(PipelineStatistics* pipeline_statistics,
        << sequence;
   }
 
+  if (pipeline_statistics != NULL) {
+    pipeline_statistics->BeginPhaseKind("code generation");
+  }
+
   // Generate native sequence.
   Handle<Code> code;
   {