[Turbofan]: Use new MachineTypes in access-builder.

src/compiler/x64/instruction-selector-x64.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 <algorithm>
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
@@ skipping 194 matching lines @@
   X64OperandGenerator g(this);
   Node* base = node->InputAt(0);
   Node* index = node->InputAt(1);
   Node* value = node->InputAt(2);
 
   StoreRepresentation store_rep = StoreRepresentationOf(node->op());
   WriteBarrierKind write_barrier_kind = store_rep.write_barrier_kind();
   MachineRepresentation rep = store_rep.representation();
 
   if (write_barrier_kind != kNoWriteBarrier) {
-    DCHECK_EQ(MachineRepresentation::kTagged, rep);
+    DCHECK(rep == MachineRepresentation::kTagged ||
+           rep == MachineRepresentation::kTaggedPointer);
     AddressingMode addressing_mode;
     InstructionOperand inputs[3];
     size_t input_count = 0;
     inputs[input_count++] = g.UseUniqueRegister(base);
     if (g.CanBeImmediate(index)) {
       inputs[input_count++] = g.UseImmediate(index);
       addressing_mode = kMode_MRI;
     } else {
       inputs[input_count++] = g.UseUniqueRegister(index);
       addressing_mode = kMode_MR1;
@@ skipping 2006 matching lines @@
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8