diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 86153cc..703fa7c 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -2493,10 +2493,9 @@
     }
   }
 
-  auto ExpectedAS =
+  LangAS ExpectedAS =
       D ? D->getType().getAddressSpace()
-        : static_cast<unsigned>(LangOpts.OpenCL ? LangAS::opencl_global
-                                                : LangAS::Default);
+        : (LangOpts.OpenCL ? LangAS::opencl_global : LangAS::Default);
   assert(getContext().getTargetAddressSpace(ExpectedAS) ==
          Ty->getPointerAddressSpace());
   if (AddrSpace != ExpectedAS)
@@ -2635,11 +2634,10 @@
       getDataLayout().getTypeStoreSizeInBits(Ty));
 }
 
-unsigned CodeGenModule::GetGlobalVarAddressSpace(const VarDecl *D) {
-  unsigned AddrSpace;
+LangAS CodeGenModule::GetGlobalVarAddressSpace(const VarDecl *D) {
+  LangAS AddrSpace = LangAS::Default;
   if (LangOpts.OpenCL) {
-    AddrSpace = D ? D->getType().getAddressSpace()
-                  : static_cast<unsigned>(LangAS::opencl_global);
+    AddrSpace = D ? D->getType().getAddressSpace() : LangAS::opencl_global;
     assert(AddrSpace == LangAS::opencl_global ||
            AddrSpace == LangAS::opencl_constant ||
            AddrSpace == LangAS::opencl_local ||
@@ -3799,7 +3797,7 @@
       !EvalResult.hasSideEffects())
     Value = &EvalResult.Val;
 
-  unsigned AddrSpace =
+  LangAS AddrSpace =
       VD ? GetGlobalVarAddressSpace(VD) : MaterializedType.getAddressSpace();
 
   Optional<ConstantEmitter> emitter;