Add constant blinding/pooling option for X8632 code translation

src/IceDefs.h

 //===- subzero/src/IceDefs.h - Common Subzero declaraions -------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares various useful types and classes that have
@@ skipping 206 matching lines @@
 template <typename T>
 llvm::iterator_range<typename T::const_reverse_iterator>
 reverse_range(const T &Container) {
   return llvm::make_range(Container.rbegin(), Container.rend());
 }
 template <typename T>
 llvm::iterator_range<typename T::reverse_iterator> reverse_range(T &Container) {
   return llvm::make_range(Container.rbegin(), Container.rend());
 }
 
+// Options for pooling and randomization of immediates
+enum RandomizeAndPoolImmediatesEnum { RPI_None, RPI_Randomize, RPI_Pool };
+
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEDEFS_H