AllocationSite objects weakly linked for traversal

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 770cecb7b41963a49fdfec72f1f4539a998d1d5e..8b7a494f7c1e39c2ebd35ec3c646c6f91624eee0 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -2992,6 +2992,20 @@ void LCodeGen::DoStoreGlobalGeneric(LStoreGlobalGeneric* instr) {
 }
 
 
+void LCodeGen::DoLinkObjectInList(LLinkObjectInList* instr) {
+  Register object = ToRegister(instr->object());
+  Register temp = ToRegister(instr->temp());
+  ExternalReference sites_list_address = instr->GetReference(isolate());
+
+  __ mov(temp, Immediate(sites_list_address));
+  __ mov(temp, Operand(temp, 0));
+  __ mov(FieldOperand(object, instr->hydrogen()->store_field().offset()),
+         temp);
+  __ mov(temp, Immediate(sites_list_address));
+  __ mov(Operand(temp, 0), object);
+}
+
+
 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) {
   Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());