Collect phantom callback data only once during gc. For scavenges, just consider the young handles r…

src/global-handles.cc

 // Copyright 2009 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/v8.h"
 
 #include "src/api.h"
 #include "src/global-handles.h"
 
 #include "src/vm-state-inl.h"
@@ skipping 555 matching lines @@
 
 
 void GlobalHandles::MakePhantom(Object** location, void* parameter,
                                 int number_of_internal_fields,
                                 GenericCallback phantom_callback) {
   Node::FromLocation(location)
       ->MakePhantom(parameter, number_of_internal_fields, phantom_callback);
 }
 
 
-void GlobalHandles::CollectPhantomCallbackData() {
+void GlobalHandles::CollectAllPhantomCallbackData() {
   for (NodeIterator it(this); !it.done(); it.Advance()) {
     Node* node = it.node();
     node->CollectPhantomCallbackData(isolate(), &pending_phantom_callbacks_);
   }
 }
 
 
+void GlobalHandles::CollectYoungPhantomCallbackData() {
+  for (int i = 0; i < new_space_nodes_.length(); ++i) {
+    Node* node = new_space_nodes_[i];
+    DCHECK(node->is_in_new_space_list());
+    node->CollectPhantomCallbackData(isolate(), &pending_phantom_callbacks_);
+  }
+}
+
+
 void* GlobalHandles::ClearWeakness(Object** location) {
   return Node::FromLocation(location)->ClearWeakness();
 }
 
 
 void GlobalHandles::MarkIndependent(Object** location) {
   Node::FromLocation(location)->MarkIndependent();
 }
 
 
@@ skipping 639 matching lines @@
   DCHECK_EQ(isolate->heap()->the_hole_value(), blocks_[block][offset]);
   blocks_[block][offset] = object;
   if (isolate->heap()->InNewSpace(object)) {
     new_space_indices_.Add(size_);
   }
   *index = size_++;
 }
 
 
 } }  // namespace v8::internal