Generate the TransitionElementsStub using Crankshaft

src/lithium.h

 // 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 668 matching lines @@
   }
 
   void AddInlinedClosure(Handle<JSFunction> closure) {
     inlined_closures_.Add(closure, zone());
   }
 
   Zone* zone() const { return info_->zone(); }
 
   Handle<Code> Codegen(Code::Kind kind);
 
+  void set_allocated_double_registers(BitVector* allocated_registers);
+  BitVector* allocated_double_registers() {
+    return allocated_double_registers_;
+  }
+
  protected:
-  LChunk(CompilationInfo* info, HGraph* graph)
-      : spill_slot_count_(0),
-        info_(info),
-        graph_(graph),
-        instructions_(32, graph->zone()),
-        pointer_maps_(8, graph->zone()),
-        inlined_closures_(1, graph->zone()) { }
+  LChunk(CompilationInfo* info, HGraph* graph);
 
   void RegisterDependentCodeForEmbeddedMaps(Handle<Code> code);
 
   int spill_slot_count_;
 
  private:
   CompilationInfo* info_;
   HGraph* const graph_;
+  BitVector* allocated_double_registers_;
   ZoneList<LInstruction*> instructions_;
   ZoneList<LPointerMap*> pointer_maps_;
   ZoneList<Handle<JSFunction> > inlined_closures_;
 };
 
 
 int ElementsKindToShiftSize(ElementsKind elements_kind);
 
+enum NumberUntagDMode {
+  NUMBER_CANDIDATE_IS_SMI,
+  NUMBER_CANDIDATE_IS_SMI_OR_HOLE,
+  NUMBER_CANDIDATE_IS_SMI_CONVERT_HOLE,
+  NUMBER_CANDIDATE_IS_ANY_TAGGED
+};
+
 
 } }  // namespace v8::internal
 
 #endif  // V8_LITHIUM_H_