AllocationSite objects weakly linked for traversal

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index 2c97fafcbcf55b8288f806e5918ab8b6e44a5486..33298c55b8d27f0c9a00cd00bf0aaf57cd290e1c 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -1376,6 +1376,11 @@ class Heap {
   }
   Object* array_buffers_list() { return array_buffers_list_; }
 
+  void set_allocation_sites_list(Object* object) {
+    allocation_sites_list_ = object;
+  }
+  Object* allocation_sites_list() { return allocation_sites_list_; }
+  Object** allocation_sites_list_address() { return &allocation_sites_list_; }
 
   // Number of mark-sweeps.
   unsigned int ms_count() { return ms_count_; }
@@ -2049,6 +2054,8 @@ class Heap {
 
   Object* array_buffers_list_;
 
+  Object* allocation_sites_list_;

[Michael Starzinger, 2013/07/16 18:14:46]

nit: Can we group these three fields together (removing new-lines) and maybe add
a short one-liner comment saying that these are heads of weak-lists?

[mvstanton, 2013/07/16 19:34:57]

Done.

+
   StoreBufferRebuilder store_buffer_rebuilder_;
 
   struct StringTypeTable {
@@ -2197,6 +2204,7 @@ class Heap {
 
   void ProcessNativeContexts(WeakObjectRetainer* retainer, bool record_slots);
   void ProcessArrayBuffers(WeakObjectRetainer* retainer, bool record_slots);
+  void ProcessAllocationSites(WeakObjectRetainer* retainer, bool record_slots);
 
   // Called on heap tear-down.
   void TearDownArrayBuffers();