Avoid HeapObject check in HStoreNamedField.

src/arm64/macro-assembler-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 "v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "bootstrapper.h"
 #include "codegen.h"
@@ skipping 541 matching lines @@
   ASSERT(!r.IsDouble());
 
   if (r.IsInteger8() || r.IsUInteger8()) {
     Strb(rt, addr);
   } else if (r.IsInteger16() || r.IsUInteger16()) {
     Strh(rt, addr);
   } else if (r.IsInteger32()) {
     Str(rt.W(), addr);
   } else {
     ASSERT(rt.Is64Bits());
+    if (r.IsHeapObject()) {
+      AssertNotSmi(rt);
+    } else if (r.IsSmi()) {
+      AssertSmi(rt);
+    }
     Str(rt, addr);
   }
 }
 
 
 bool MacroAssembler::NeedExtraInstructionsOrRegisterBranch(
     Label *label, ImmBranchType b_type) {
   bool need_longer_range = false;
   // There are two situations in which we care about the offset being out of
   // range:
@@ skipping 4683 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64