Lattice-based representation inference, powered by left/right specific type feedback for BinaryOps …

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index 76084cfd58ac23b7b3a350049830a80bb9f664ed..65848667d103050e6c1aa19e82a5c521ad4fb194 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -3703,7 +3703,7 @@ MaybeObject* Heap::CreateCode(const CodeDesc& desc,
     code->set_check_type(RECEIVER_MAP_CHECK);
   }
   code->set_deoptimization_data(empty_fixed_array(), SKIP_WRITE_BARRIER);
-  code->set_type_feedback_info(undefined_value(), SKIP_WRITE_BARRIER);
+  code->InitializeTypeFeedbackInfoNoWriteBarrier(undefined_value());
   code->set_handler_table(empty_fixed_array(), SKIP_WRITE_BARRIER);
   code->set_gc_metadata(Smi::FromInt(0));
   code->set_ic_age(global_ic_age_);