Reland Add V8.Execute histogram to measure time spent executing JS code.

src/api.cc

 // Copyright 2012 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/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 1765 matching lines @@
     i::Object* url = i::Script::cast(obj->script())->source_mapping_url();
     return Utils::ToLocal(i::Handle<i::Object>(url, isolate));
   } else {
     return Local<String>();
   }
 }
 
 
 MaybeLocal<Value> Script::Run(Local<Context> context) {
   PREPARE_FOR_EXECUTION_WITH_CALLBACK(context, "v8::Script::Run()", Value)
+  i::HistogramTimerScope execute_timer(isolate->counters()->execute(), true);
   i::AggregatingHistogramTimerScope timer(isolate->counters()->compile_lazy());
   i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate);
   TRACE_EVENT0("v8", "V8.Execute");
   auto fun = i::Handle<i::JSFunction>::cast(Utils::OpenHandle(this));
   i::Handle<i::Object> receiver = isolate->global_proxy();
   Local<Value> result;
   has_pending_exception =
       !ToLocal<Value>(i::Execution::Call(isolate, fun, receiver, 0, NULL),
                       &result);
   RETURN_ON_FAILED_EXECUTION(Value);
@@ skipping 2576 matching lines @@
 bool v8::Object::IsConstructor() {
   auto self = Utils::OpenHandle(this);
   return self->IsConstructor();
 }
 
 MaybeLocal<Value> Object::CallAsFunction(Local<Context> context,
                                          Local<Value> recv, int argc,
                                          Local<Value> argv[]) {
   PREPARE_FOR_EXECUTION_WITH_CALLBACK(context, "v8::Object::CallAsFunction()",
                                       Value);
+  i::HistogramTimerScope execute_timer(isolate->counters()->execute(), true);
   i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate);
   TRACE_EVENT0("v8", "V8.Execute");
   auto self = Utils::OpenHandle(this);
   auto recv_obj = Utils::OpenHandle(*recv);
   STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Object**));
   i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv);
   Local<Value> result;
   has_pending_exception = !ToLocal<Value>(
       i::Execution::Call(isolate, self, recv_obj, argc, args), &result);
   RETURN_ON_FAILED_EXECUTION(Value);
   RETURN_ESCAPED(result);
 }
 
 
 Local<v8::Value> Object::CallAsFunction(v8::Local<v8::Value> recv, int argc,
                                         v8::Local<v8::Value> argv[]) {
   auto context = ContextFromHeapObject(Utils::OpenHandle(this));
   Local<Value>* argv_cast = reinterpret_cast<Local<Value>*>(argv);
   RETURN_TO_LOCAL_UNCHECKED(CallAsFunction(context, recv, argc, argv_cast),
                             Value);
 }
 
 
 MaybeLocal<Value> Object::CallAsConstructor(Local<Context> context, int argc,
                                             Local<Value> argv[]) {
   PREPARE_FOR_EXECUTION_WITH_CALLBACK(context,
                                       "v8::Object::CallAsConstructor()", Value);
+  i::HistogramTimerScope execute_timer(isolate->counters()->execute(), true);
   i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate);
   TRACE_EVENT0("v8", "V8.Execute");
   auto self = Utils::OpenHandle(this);
   STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Object**));
   i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv);
   Local<Value> result;
   has_pending_exception = !ToLocal<Value>(
       i::Execution::New(isolate, self, self, argc, args), &result);
   RETURN_ON_FAILED_EXECUTION(Value);
   RETURN_ESCAPED(result);
@@ skipping 30 matching lines @@
 Local<v8::Object> Function::NewInstance() const {
   return NewInstance(Isolate::GetCurrent()->GetCurrentContext(), 0, NULL)
       .FromMaybe(Local<Object>());
 }
 
 
 MaybeLocal<Object> Function::NewInstance(Local<Context> context, int argc,
                                          v8::Local<v8::Value> argv[]) const {
   PREPARE_FOR_EXECUTION_WITH_CALLBACK(context, "v8::Function::NewInstance()",
                                       Object);
+  i::HistogramTimerScope execute_timer(isolate->counters()->execute(), true);
   i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate);
   TRACE_EVENT0("v8", "V8.Execute");
   auto self = Utils::OpenHandle(this);
   STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Object**));
   i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv);
   Local<Object> result;
   has_pending_exception = !ToLocal<Object>(
       i::Execution::New(isolate, self, self, argc, args), &result);
   RETURN_ON_FAILED_EXECUTION(Object);
   RETURN_ESCAPED(result);
 }
 
 
 Local<v8::Object> Function::NewInstance(int argc,
                                         v8::Local<v8::Value> argv[]) const {
   auto context = ContextFromHeapObject(Utils::OpenHandle(this));
   RETURN_TO_LOCAL_UNCHECKED(NewInstance(context, argc, argv), Object);
 }
 
 
 MaybeLocal<v8::Value> Function::Call(Local<Context> context,
                                      v8::Local<v8::Value> recv, int argc,
                                      v8::Local<v8::Value> argv[]) {
   PREPARE_FOR_EXECUTION_WITH_CALLBACK(context, "v8::Function::Call()", Value);
+  i::HistogramTimerScope execute_timer(isolate->counters()->execute(), true);
   i::TimerEventScope<i::TimerEventExecute> timer_scope(isolate);
   TRACE_EVENT0("v8", "V8.Execute");
   auto self = Utils::OpenHandle(this);
   i::Handle<i::Object> recv_obj = Utils::OpenHandle(*recv);
   STATIC_ASSERT(sizeof(v8::Local<v8::Value>) == sizeof(i::Object**));
   i::Handle<i::Object>* args = reinterpret_cast<i::Handle<i::Object>*>(argv);
   Local<Value> result;
   has_pending_exception = !ToLocal<Value>(
       i::Execution::Call(isolate, self, recv_obj, argc, args), &result);
   RETURN_ON_FAILED_EXECUTION(Value);
@@ skipping 4335 matching lines @@
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 }  // namespace internal
 }  // namespace v8