Add support for object pool

runtime/vm/constants_arm.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_CONSTANTS_ARM_H_
 #define VM_CONSTANTS_ARM_H_
 
 namespace dart {
 
 // We support both VFPv3-D16 and VFPv3-D32 profiles, but currently only one at
@@ skipping 116 matching lines @@
 
 // Architecture independent aliases.
 typedef DRegister FpuRegister;
 const FpuRegister FpuTMP = D0;
 const int kNumberOfFpuRegisters = kNumberOfDRegisters;
 
 
 // Register aliases.
 const Register TMP = kNoRegister;  // No scratch register used by assembler.
 const Register CTX = R9;  // Caches current context in generated code.
-const Register CP = R10;  // Caches constant pool base in generated code.
+const Register PP = R10;  // Caches object pool pointer in generated code.
 const Register SPREG = SP;
 const Register FPREG = FP;
 
 
 // Exception object is passed in this register to the catch handlers when an
 // exception is thrown.
 const Register kExceptionObjectReg = R0;  // Unimplemented.
 
 
 // List of registers used in load/store multiple.
@@ skipping 352 matching lines @@
   Instr* Next() { return this + kInstrSize; }
 
  private:
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(Instr);
 };
 
 }  // namespace dart
 
 #endif  // VM_CONSTANTS_ARM_H_