Unify internal and external typed arrays a bit

src/x64/lithium-codegen-x64.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_X64
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 5147 matching lines @@
     Condition cc = masm()->CheckSmi(ToRegister(input));
     DeoptimizeIf(cc, instr, Deoptimizer::kSmi);
   }
 }
 
 
 void LCodeGen::DoCheckArrayBufferNotNeutered(
     LCheckArrayBufferNotNeutered* instr) {
   Register view = ToRegister(instr->view());
 
-  Label has_no_buffer;
   __ movp(kScratchRegister,
           FieldOperand(view, JSArrayBufferView::kBufferOffset));
-  __ JumpIfSmi(kScratchRegister, &has_no_buffer);
   __ testb(FieldOperand(kScratchRegister, JSArrayBuffer::kBitFieldOffset),
            Immediate(1 << JSArrayBuffer::WasNeutered::kShift));
   DeoptimizeIf(not_zero, instr, Deoptimizer::kOutOfBounds);
-
-  __ bind(&has_no_buffer);
 }
 
 
 void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) {
   Register input = ToRegister(instr->value());
 
   __ movp(kScratchRegister, FieldOperand(input, HeapObject::kMapOffset));
 
   if (instr->hydrogen()->is_interval_check()) {
     InstanceType first;
@@ skipping 762 matching lines @@
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64