Add support for Embedded Constant Pools for PPC and Arm

src/ppc/constants-ppc.h

 // Copyright 2014 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.
 
 #ifndef V8_PPC_CONSTANTS_PPC_H_
 #define V8_PPC_CONSTANTS_PPC_H_
 
 namespace v8 {
 namespace internal {
 
 // Number of registers
 const int kNumRegisters = 32;
 
 // FP support.
 const int kNumFPDoubleRegisters = 32;
 const int kNumFPRegisters = kNumFPDoubleRegisters;
 
 const int kNoRegister = -1;
 
+// Used in embedded constant pool builder - max reach in bits for
+// various load instructions (one less due to unsigned)
+const int kLoadPtrMaxReachBits = 15;
+const int kLoadDoubleMaxReachBits = 15;
+
 // sign-extend the least significant 16-bits of value <imm>
 #define SIGN_EXT_IMM16(imm) ((static_cast<int>(imm) << 16) >> 16)
 
 // sign-extend the least significant 26-bits of value <imm>
 #define SIGN_EXT_IMM26(imm) ((static_cast<int>(imm) << 6) >> 6)
 
 // -----------------------------------------------------------------------------
 // Conditions.
 
 // Defines constants and accessor classes to assemble, disassemble and
@@ skipping 547 matching lines @@
   // Lookup the register number for the name provided.
   static int Number(const char* name);
 
  private:
   static const char* names_[kNumFPRegisters];
 };
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_CONSTANTS_PPC_H_