Disallow subclassing Arrays.

src/arm64/full-codegen-arm64.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/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 3918 matching lines @@
     // Pre-decrement x11 with kPointerSize on each iteration.
     // Pre-decrement in order to skip receiver.
     __ Ldr(x10, MemOperand(x11, -kPointerSize, PreIndex));
     __ Push(x10);
     __ Sub(x1, x1, Operand(1));
     __ Cbnz(x1, &loop);
   }
 
   __ bind(&args_set_up);
   __ Peek(x1, Operand(x0, LSL, kPointerSizeLog2));
+  __ LoadRoot(x2, Heap::kUndefinedValueRootIndex);
 
   CallConstructStub stub(isolate(), SUPER_CONSTRUCTOR_CALL);
   __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
 
   __ Drop(1);
 
   context()->Plug(result_register());
 }
 
 
@@ skipping 1530 matching lines @@
   return previous_;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64