Add constant blinding/pooling option for X8632 code translation

src/IceDefs.h

Index: src/IceDefs.h
diff --git a/src/IceDefs.h b/src/IceDefs.h
index 71a23f66072b39e03540c795dc54f7f4b243c51a..ad7a3eda9d62b4d8882b3d5ec704a8432f435773 100644
--- a/src/IceDefs.h
+++ b/src/IceDefs.h
@@ -224,6 +224,9 @@ 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