[heap] Optimize NewSpace::AllocatedSinceLastGC

src/heap/heap-inl.h

Index: src/heap/heap-inl.h
diff --git a/src/heap/heap-inl.h b/src/heap/heap-inl.h
index e31d3d6859b4630677794d4062c0053b67eb4bb5..252e7671e6e4e1f94e6e2b4eb3d60c66a123df13 100644
--- a/src/heap/heap-inl.h
+++ b/src/heap/heap-inl.h
@@ -449,6 +449,14 @@ void Heap::CopyBlock(Address dst, Address src, int byte_size) {
             static_cast<size_t>(byte_size / kPointerSize));
 }
 
+void Heap::UpdateNewSpaceAllocationCounter() {
+  new_space_allocation_counter_ = NewSpaceAllocationCounter();
+}
+
+size_t Heap::NewSpaceAllocationCounter() {
+  return new_space_allocation_counter_ + new_space()->AllocatedSinceLastGC();
+}
+
 template <Heap::FindMementoMode mode>
 AllocationMemento* Heap::FindAllocationMemento(HeapObject* object) {
   // Check if there is potentially a memento behind the object. If