Customized support for feedback on calls to Array.

src/objects-visiting-inl.h

Index: src/objects-visiting-inl.h
diff --git a/src/objects-visiting-inl.h b/src/objects-visiting-inl.h
index bb2e99243a1d72bf318e246a14e34b1665f2b3cc..498b517e7f28d7d7e9fc860ccd4decada05dbd3e 100644
--- a/src/objects-visiting-inl.h
+++ b/src/objects-visiting-inl.h
@@ -287,9 +287,15 @@ void StaticMarkingVisitor<StaticVisitor>::VisitCodeTarget(
   // when they might be keeping a Context alive, or when the heap is about
   // to be serialized.
 
+  // TODO(mvstanton): CALL_IC in monomorphic state needs to be cleared because
+  // it's state is synced with a type feedback slot, which is always cleared on
+  // gc. If we leave it alone, we'll end up in a hybrid of (cleared feedback
+  // slot but monomorphic IC), which is complex.
   if (FLAG_cleanup_code_caches_at_gc && target->is_inline_cache_stub()
       && (target->ic_state() == MEGAMORPHIC || target->ic_state() == GENERIC ||
           target->ic_state() == POLYMORPHIC || heap->flush_monomorphic_ics() ||
+          (target->ic_state() == MONOMORPHIC &&
+           target->kind() == Code::CALL_IC) ||

[danno, 2014/05/16 16:34:11]

This code can be removed.

[mvstanton, 2014/05/19 13:45:24]

Done.

           Serializer::enabled(heap->isolate()) ||
           target->ic_age() != heap->global_ic_age() ||
           target->is_invalidated_weak_stub())) {