[turbofan] split compilation stats off from HStatistics and track high water marks

src/hydrogen.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/hydrogen.h"
 
 #include <sstream>
 
 #include "src/v8.h"
 
@@ skipping 12576 matching lines @@
   trace_.Reset();
 }
 
 
 void HStatistics::Initialize(CompilationInfo* info) {
   if (info->shared_info().is_null()) return;
   source_size_ += info->shared_info()->SourceSize();
 }
 
 
-void HStatistics::Print(const char* stats_name) {
+void HStatistics::Print() {
   PrintF(
       "\n"
       "----------------------------------------"
       "----------------------------------------\n"
-      "--- %s timing results:\n"
+      "--- Hydrogen timing results:\n"
       "----------------------------------------"
-      "----------------------------------------\n",
-      stats_name);
+      "----------------------------------------\n");
   base::TimeDelta sum;
   for (int i = 0; i < times_.length(); ++i) {
     sum += times_[i];
   }
 
   for (int i = 0; i < names_.length(); ++i) {
     PrintF("%33s", names_[i]);
     double ms = times_[i].InMillisecondsF();
     double percent = times_[i].PercentOf(sum);
     PrintF(" %8.3f ms / %4.1f %% ", ms, percent);
@@ skipping 53 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal