[TypeFeedbackVector] Root feedback vectors at function literal site.

src/deoptimizer.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/deoptimizer.h"
 
 #include <memory>
 
 #include "src/accessors.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 3778 matching lines @@
       Handle<JSFunction> object =
           isolate_->factory()->NewFunctionFromSharedFunctionInfo(
               map, temporary_shared, isolate_->factory()->undefined_value(),
               NOT_TENURED);
       slot->value_ = object;
       Handle<Object> properties = materializer.FieldAt(value_index);
       Handle<Object> elements = materializer.FieldAt(value_index);
       Handle<Object> prototype = materializer.FieldAt(value_index);
       Handle<Object> shared = materializer.FieldAt(value_index);
       Handle<Object> context = materializer.FieldAt(value_index);
-      Handle<Object> vector = materializer.FieldAt(value_index);
+      Handle<Object> vector_cell = materializer.FieldAt(value_index);
       Handle<Object> entry = materializer.FieldAt(value_index);
       Handle<Object> next_link = materializer.FieldAt(value_index);
       object->ReplaceCode(*isolate_->builtins()->CompileLazy());
       object->set_map(*map);
       object->set_properties(FixedArray::cast(*properties));
       object->set_elements(FixedArrayBase::cast(*elements));
       object->set_prototype_or_initial_map(*prototype);
       object->set_shared(SharedFunctionInfo::cast(*shared));
       object->set_context(Context::cast(*context));
-      object->set_feedback_vector(TypeFeedbackVector::cast(*vector));
+      object->set_feedback_vector_cell(Cell::cast(*vector_cell));
       CHECK(entry->IsNumber());  // Entry to compile lazy stub.
       CHECK(next_link->IsUndefined(isolate_));
       return object;
     }
     case CONS_STRING_TYPE: {
       Handle<ConsString> object = Handle<ConsString>::cast(
           isolate_->factory()
               ->NewConsString(isolate_->factory()->undefined_string(),
                               isolate_->factory()->undefined_string())
               .ToHandleChecked());
@@ skipping 383 matching lines @@
       CHECK(value_info->IsMaterializedObject());
 
       value_info->value_ =
           Handle<Object>(previously_materialized_objects->get(i), isolate_);
     }
   }
 }
 
 }  // namespace internal
 }  // namespace v8