Add constant blinding/pooling option for X8632 code translation

src/IceGlobalContext.cpp

Index: src/IceGlobalContext.cpp
diff --git a/src/IceGlobalContext.cpp b/src/IceGlobalContext.cpp
index 1c468ecf97a93ebaf5f85ba7a681579558dc5b63..25246073623db6113f7a8d02ea19fdfb7ebf22a9 100644
--- a/src/IceGlobalContext.cpp
+++ b/src/IceGlobalContext.cpp
@@ -225,7 +225,8 @@ GlobalContext::GlobalContext(Ostream *OsDump, Ostream *OsEmit, Ostream *OsError,
       EmitQ(/*Sequential=*/Flags.isSequential()),
       DataLowering(TargetDataLowering::createLowering(this)),
       HasSeenCode(false),
-      ProfileBlockInfoVarDecl(VariableDeclaration::create()) {
+      ProfileBlockInfoVarDecl(VariableDeclaration::create()),
+      RandomizationCookie(0) {
   assert(OsDump && "OsDump is not defined for GlobalContext");
   assert(OsEmit && "OsEmit is not defined for GlobalContext");
   assert(OsError && "OsError is not defined for GlobalContext");
@@ -753,7 +754,9 @@ ConstantList GlobalContext::getConstantPool(Type Ty) {
   switch (Ty) {
   case IceType_i1:
   case IceType_i8:
+    return getConstPool()->Integers8.getConstantPool();
   case IceType_i16:
+    return getConstPool()->Integers16.getConstantPool();
   case IceType_i32:
     return getConstPool()->Integers32.getConstantPool();
   case IceType_i64: