Don't track allocations in product mode.

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/become.h"
@@ skipping 1827 matching lines @@
 
   uword address = heap->Allocate(size, space);
   if (address == 0) {
     // Use the preallocated out of memory exception to avoid calling
     // into dart code or allocating any code.
     const Instance& exception =
         Instance::Handle(isolate->object_store()->out_of_memory());
     Exceptions::Throw(thread, exception);
     UNREACHABLE();
   }
+#ifndef PRODUCT
   ClassTable* class_table = isolate->class_table();
   if (space == Heap::kNew) {
     class_table->UpdateAllocatedNew(cls_id, size);
   } else {
     class_table->UpdateAllocatedOld(cls_id, size);
   }
   const Class& cls = Class::Handle(class_table->At(cls_id));
   if (FLAG_profiler && cls.TraceAllocation(isolate)) {
     Profiler::SampleAllocation(thread, cls_id);
   }
+#endif  // !PRODUCT
   NoSafepointScope no_safepoint;
   InitializeObject(address, cls_id, size, (isolate == Dart::vm_isolate()));
   RawObject* raw_obj = reinterpret_cast<RawObject*>(address + kHeapObjectTag);
   ASSERT(cls_id == RawObject::ClassIdTag::decode(raw_obj->ptr()->tags_));
   return raw_obj;
 }
 
 
 class StoreBufferUpdateVisitor : public ObjectPointerVisitor {
  public:
@@ skipping 933 matching lines @@
   a.DisableCode();
 }
 
 
 void Class::DisableAllCHAOptimizedCode() {
   DisableCHAOptimizedCode(Class::Handle());
 }
 
 
 bool Class::TraceAllocation(Isolate* isolate) const {
+#ifndef PRODUCT
   ClassTable* class_table = isolate->class_table();
   return class_table->TraceAllocationFor(id());
+#else
+  return false;
+#endif
 }
 
 
 void Class::SetTraceAllocation(bool trace_allocation) const {
+#ifndef PRODUCT
   Isolate* isolate = Isolate::Current();
   const bool changed = trace_allocation != this->TraceAllocation(isolate);
   if (changed) {
     ClassTable* class_table = isolate->class_table();
     class_table->SetTraceAllocationFor(id(), trace_allocation);
     DisableAllocationStub();
   }
+#else
+  UNREACHABLE();
+#endif
 }
 
 
 bool Class::ValidatePostFinalizePatch(const Class& orig_class,
                                       Error* error) const {
   ASSERT(error != NULL);
   // Not allowed to add new fields in a post finalization patch.
   if (fields() != Object::empty_array().raw()) {
     *error = LanguageError::NewFormatted(
         *error,  // No previous error.
@@ skipping 19751 matching lines @@
   return UserTag::null();
 }
 
 
 const char* UserTag::ToCString() const {
   const String& tag_label = String::Handle(label());
   return tag_label.ToCString();
 }
 
 }  // namespace dart