A CL that only removes dead code from the VM compiler.

runtime/vm/deopt_instructions.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_DEOPT_INSTRUCTIONS_H_
 #define VM_DEOPT_INSTRUCTIONS_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
@@ skipping 147 matching lines @@
   void AddReturnAddressBefore(const Function& function,
                               intptr_t deopt_id,
                               intptr_t to_index);
 
   // Return address after instruction.
   void AddReturnAddressAfter(const Function& function,
                              intptr_t deopt_id,
                              intptr_t to_index);
 
   // Copy from optimized frame to unoptimized.
-  void AddCopy(const Location& from_loc,
-               const Value& from_value,
-               intptr_t to_index);
+  void AddCopy(const Location& from_loc, intptr_t to_index);
   void AddPcMarker(const Function& function, intptr_t to_index);
   void AddCallerFp(intptr_t to_index);
   void AddCallerPc(intptr_t to_index);
 
   RawDeoptInfo* CreateDeoptInfo();
 
  private:
   class TrieNode;
 
   intptr_t FindOrAddObjectInTable(const Object& obj) const;
@@ skipping 37 matching lines @@
                        DeoptInfo* info,
                        Smi* reason);
 
  private:
   static const intptr_t kEntrySize = 3;
 };
 
 }  // namespace dart
 
 #endif  // VM_DEOPT_INSTRUCTIONS_H_