diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -4256,9 +4256,9 @@
        D->getType()->isCUDADeviceBuiltinTextureType());
   if (getLangOpts().CUDA &&
       (IsCUDASharedVar || IsCUDAShadowVar || IsCUDADeviceShadowVar))
-    Init = llvm::UndefValue::get(getTypes().ConvertType(ASTTy));
+    Init = llvm::UndefValue::get(getTypes().ConvertTypeForMem(ASTTy));
   else if (D->hasAttr<LoaderUninitializedAttr>())
-    Init = llvm::UndefValue::get(getTypes().ConvertType(ASTTy));
+    Init = llvm::UndefValue::get(getTypes().ConvertTypeForMem(ASTTy));
   else if (!InitExpr) {
     // This is a tentative definition; tentative definitions are
     // implicitly initialized with { 0 }.
diff --git a/clang/test/OpenMP/declare_target_codegen.cpp b/clang/test/OpenMP/declare_target_codegen.cpp
--- a/clang/test/OpenMP/declare_target_codegen.cpp
+++ b/clang/test/OpenMP/declare_target_codegen.cpp
@@ -26,6 +26,7 @@
 // CHECK-NOT: define {{.*}}{{baz1|baz4|maini1|Base|virtual_}}
 // CHECK-DAG: Bake
 // CHECK-NOT: @{{hhh|ggg|fff|eee}} =
+// CHECK-DAG: @flag = hidden global i8 undef,
 // CHECK-DAG: @aaa = external global i32,
 // CHECK-DAG: @bbb ={{ hidden | }}global i32 0,
 // CHECK-DAG: weak constant %struct.__tgt_offload_entry { i8* bitcast (i32* @bbb to i8*),
@@ -53,8 +54,8 @@
 
 #ifndef HEADER
 #define HEADER
-
 #pragma omp declare target
+bool flag [[clang::loader_uninitialized]];
 extern int bbb;
 #pragma omp end declare target
 #pragma omp declare target