Track allocation info

src/type-info.cc

Index: src/type-info.cc
diff --git a/src/type-info.cc b/src/type-info.cc
index bc6a46b4b664f095e6587ed8fa873df9868b5093..f97605bded9c4f6f58ec368e5a00e8ff92a1f687 100644
--- a/src/type-info.cc
+++ b/src/type-info.cc
@@ -171,6 +171,11 @@ bool TypeFeedbackOracle::CallIsMonomorphic(Call* expr) {
 
 bool TypeFeedbackOracle::CallNewIsMonomorphic(CallNew* expr) {
   Handle<Object> value = GetInfo(expr->CallNewFeedbackId());
+  if (value->IsSmi()) {
+    ASSERT(static_cast<ElementsKind>(Smi::cast(*value)->value()) <=
+           LAST_FAST_ELEMENTS_KIND);
+    return Isolate::Current()->global_context()->array_function();
+  }
   return value->IsJSFunction();
 }
 
@@ -295,7 +300,25 @@ Handle<JSFunction> TypeFeedbackOracle::GetCallTarget(Call* expr) {
 
 
 Handle<JSFunction> TypeFeedbackOracle::GetCallNewTarget(CallNew* expr) {
-  return Handle<JSFunction>::cast(GetInfo(expr->CallNewFeedbackId()));
+  Handle <Object> info = GetInfo(expr->CallNewFeedbackId());
+  if (info->IsSmi()) {
+    ASSERT(static_cast<ElementsKind>(Smi::cast(*info)->value()) <=
+           LAST_FAST_ELEMENTS_KIND);
+    return Handle<JSFunction>(Isolate::Current()->global_context()->
+                              array_function());
+  } else {
+    return Handle<JSFunction>::cast(info);
+  }
+}
+
+
+ElementsKind TypeFeedbackOracle::GetCallNewElementsKind(CallNew* expr) {
+  Handle<Object> info = GetInfo(expr->CallNewFeedbackId());
+  if (info->IsSmi()) {
+    return static_cast<ElementsKind>(Smi::cast(*info)->value());
+  } else {
+    return GetInitialFastElementsKind();
+  }
 }