[turbofan] basic block profiler

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index e96044532115b42e71c674384537a634f0eb377e..dc03367259a49502d57c7f17045d99d1635a6dc1 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -13,6 +13,7 @@
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
 #include "src/compilation-cache.h"
+#include "src/compiler/pipeline.h"
 #include "src/cpu-profiler.h"
 #include "src/debug.h"
 #include "src/deoptimizer.h"
@@ -1516,7 +1517,8 @@ Isolate::Isolate()
       num_sweeper_threads_(0),
       stress_deopt_count_(0),
       next_optimization_id_(0),
-      use_counter_callback_(NULL) {
+      use_counter_callback_(NULL),
+      basic_block_profiler_(NULL) {
   {
     base::LockGuard<base::Mutex> lock_guard(thread_data_table_mutex_.Pointer());
     CHECK(thread_data_table_);
@@ -1640,6 +1642,12 @@ void Isolate::Deinit() {
       delete runtime_profiler_;
       runtime_profiler_ = NULL;
     }
+
+    if (basic_block_profiler_ != NULL) {
+      delete basic_block_profiler_;
+      basic_block_profiler_ = NULL;
+    }
+
     heap_.TearDown();
     logger_->TearDown();
 
@@ -2363,6 +2371,14 @@ void Isolate::CountUsage(v8::Isolate::UseCounterFeature feature) {
 }
 
 
+compiler::BasicBlockProfiler* Isolate::GetBasicBlockProfiler() {
+  if (basic_block_profiler_ == NULL) {
+    basic_block_profiler_ = new compiler::BasicBlockProfiler();
+  }
+  return basic_block_profiler_;
+}
+
+
 bool StackLimitCheck::JsHasOverflowed() const {
   StackGuard* stack_guard = isolate_->stack_guard();
 #ifdef USE_SIMULATOR