Pretenure builtin typed arrays.

src/bootstrapper.cc

 // Copyright 2014 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/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/code-stubs.h"
@@ skipping 1712 matching lines @@
   DCHECK(!inner_string.is_null());
   Handle<Object> value =
       Object::GetProperty(object, inner_string).ToHandleChecked();
   return Handle<JSObject>::cast(value);
 }
 
 
 template <typename Data>
 Data* SetBuiltinTypedArray(Isolate* isolate, Handle<JSBuiltinsObject> builtins,
                            ExternalArrayType type, Data* data,
-                           size_t num_elements, const char* name) {
+                           size_t num_elements, const char* name,
+                           const SharedFlag shared = SharedFlag::kNotShared,
+                           const PretenureFlag pretenure = TENURED) {
   size_t byte_length = num_elements * sizeof(*data);
-  Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer();
+  Handle<JSArrayBuffer> buffer =
+      isolate->factory()->NewJSArrayBuffer(shared, pretenure);
   bool is_external = data != nullptr;
   if (!is_external) {
     data = reinterpret_cast<Data*>(
         isolate->array_buffer_allocator()->Allocate(byte_length));
   }
-  JSArrayBuffer::Setup(buffer, isolate, is_external, data, byte_length);
+  JSArrayBuffer::Setup(buffer, isolate, is_external, data, byte_length, shared);
 
-  Handle<JSTypedArray> typed_array =
-      isolate->factory()->NewJSTypedArray(type, buffer, 0, num_elements);
+  Handle<JSTypedArray> typed_array = isolate->factory()->NewJSTypedArray(
+      type, buffer, 0, num_elements, pretenure);
   Handle<String> name_string = isolate->factory()->InternalizeUtf8String(name);
   // Reset property cell type before (re)initializing.
   JSBuiltinsObject::InvalidatePropertyCell(builtins, name_string);
   JSObject::SetOwnPropertyIgnoreAttributes(builtins, name_string, typed_array,
                                            FROZEN)
       .Assert();
   return data;
 }
 
 
@@ skipping 1503 matching lines @@
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 }  // namespace internal
 }  // namespace v8