Store offset between fixed typed array base and data start in object

src/arm64/lithium-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 <sstream>
 
 #include "src/v8.h"
 
 #include "src/arm64/lithium-codegen-arm64.h"
 #include "src/hydrogen-osr.h"
@@ skipping 2370 matching lines @@
     elements = UseRegister(instr->elements());
     val = UseRegister(instr->value());
     temp = instr->key()->IsConstant() ? NULL : TempRegister();
   }
 
   if (instr->is_typed_elements()) {
     DCHECK((instr->value()->representation().IsInteger32() &&
             !IsDoubleOrFloatElementsKind(instr->elements_kind())) ||
            (instr->value()->representation().IsDouble() &&
             IsDoubleOrFloatElementsKind(instr->elements_kind())));
-    DCHECK((instr->is_fixed_typed_array() &&
-            instr->elements()->representation().IsTagged()) ||
-           (instr->is_external() &&
-            instr->elements()->representation().IsExternal()));
+    DCHECK(instr->elements()->representation().IsExternal());
     return new(zone()) LStoreKeyedExternal(elements, key, val, temp);
 
   } else if (instr->value()->representation().IsDouble()) {
     DCHECK(instr->elements()->representation().IsTagged());
     return new(zone()) LStoreKeyedFixedDouble(elements, key, val, temp);
 
   } else {
     DCHECK(instr->elements()->representation().IsTagged());
     DCHECK(instr->value()->representation().IsSmiOrTagged() ||
            instr->value()->representation().IsInteger32());
@@ skipping 413 matching lines @@
   LOperand* context = UseFixed(instr->context(), cp);
   LOperand* function = UseRegisterAtStart(instr->function());
   LAllocateBlockContext* result =
       new(zone()) LAllocateBlockContext(context, function);
   return MarkAsCall(DefineFixed(result, cp), instr);
 }
 
 
 }  // namespace internal
 }  // namespace v8