Hydrogen array constructor cleanup and improvements

src/x64/lithium-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 336 matching lines @@
   constructor()->PrintTo(stream);
   stream->Add(" #%d / ", arity());
 }
 
 
 void LCallNewArray::PrintDataTo(StringStream* stream) {
   stream->Add("= ");
   constructor()->PrintTo(stream);
   stream->Add(" #%d / ", arity());
   ASSERT(hydrogen()->property_cell()->value()->IsSmi());
-  ElementsKind kind = static_cast<ElementsKind>(
-      Smi::cast(hydrogen()->property_cell()->value())->value());
+  ElementsKind kind = hydrogen()->elements_kind();
   stream->Add(" (%s) ", ElementsKindToString(kind));
 }
 
 
 void LAccessArgumentsAt::PrintDataTo(StringStream* stream) {
   arguments()->PrintTo(stream);
 
   stream->Add(" length ");
   length()->PrintTo(stream);
 
@@ skipping 2231 matching lines @@
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseTempRegister(instr->index());
   return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64