[heap] Parallel newspace evacuation, semispace copy, and compaction \o/

src/heap/store-buffer-inl.h

Index: src/heap/store-buffer-inl.h
diff --git a/src/heap/store-buffer-inl.h b/src/heap/store-buffer-inl.h
index e11ad87087ccf039b6076a76d3a408a66a85d6fa..6a2262efa08ff8043077603d9f92628a503611f1 100644
--- a/src/heap/store-buffer-inl.h
+++ b/src/heap/store-buffer-inl.h
@@ -28,6 +28,7 @@ void StoreBuffer::Mark(Address addr) {
 
 inline void StoreBuffer::MarkSynchronized(Address addr) {
   base::LockGuard<base::Mutex> lock_guard(&mutex_);
+  if (MemoryChunk::FromAddress(addr)->scan_on_scavenge()) return;
   Mark(addr);
 }
 
@@ -48,6 +49,24 @@ void StoreBuffer::EnterDirectlyIntoStoreBuffer(Address addr) {
     }
   }
 }
+
+
+void LocalStoreBuffer::Record(Address addr) {
+  if (top_->is_full()) top_ = new Node(top_);
+  top_->buffer[top_->count++] = addr;
+}
+
+
+void LocalStoreBuffer::Process(StoreBuffer* store_buffer) {
+  Node* current = top_;
+  while (current != nullptr) {
+    for (int i = 0; i < current->count; i++) {
+      store_buffer->Mark(current->buffer[i]);
+    }
+    current = current->next;
+  }
+}
+
 }  // namespace internal
 }  // namespace v8