diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -12640,6 +12640,8 @@
           return;
         }
       }
+      // The declaration is unitialized, no need for further checks.
+      return;
     }
 
     VarDecl::DefinitionKind DefKind = Var->isThisDeclarationADefinition();
diff --git a/clang/test/CodeGen/attr-loader-uninitialized.c b/clang/test/CodeGen/attr-loader-uninitialized.c
--- a/clang/test/CodeGen/attr-loader-uninitialized.c
+++ b/clang/test/CodeGen/attr-loader-uninitialized.c
@@ -18,7 +18,19 @@
 } s;
 
 // CHECK: @i ={{.*}} global %struct.s undef
+// CHECK: @j1 ={{.*}}addrspace(1) global %struct.s undef
+// CHECK: @j2 ={{.*}}addrspace(2) global %struct.s undef
+// CHECK: @j3 ={{.*}}addrspace(3) global %struct.s undef
+// CHECK: @j4 ={{.*}}addrspace(4) global %struct.s undef
+// CHECK: @j5 ={{.*}}addrspace(5) global %struct.s undef
+// CHECK: @j99 ={{.*}}addrspace(99) global %struct.s undef
 s i __attribute__((loader_uninitialized));
+s j1 __attribute__((loader_uninitialized, address_space(1)));
+s j2 __attribute__((loader_uninitialized, address_space(2)));
+s j3 __attribute__((loader_uninitialized, address_space(3)));
+s j4 __attribute__((loader_uninitialized, address_space(4)));
+s j5 __attribute__((loader_uninitialized, address_space(5)));
+s j99 __attribute__((loader_uninitialized, address_space(99)));
 
 // CHECK: @private_extern_ok = hidden global i32 undef
 __private_extern__ int private_extern_ok __attribute__((loader_uninitialized));
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
@@ -37,6 +37,7 @@
 // CHECK-DAG: @fff_decl_tgt_ref_ptr = weak global i32* null
 // CHECK-DAG: @eee_decl_tgt_ref_ptr = weak global i32* null
 // CHECK-DAG: @{{.*}}maini1{{.*}}aaa = internal global i64 23,
+// CHECK-DAG: @pair = {{.*}}addrspace(3) global %struct.PAIR undef
 // CHECK-DAG: @b ={{ hidden | }}global i32 15,
 // CHECK-DAG: @d ={{ hidden | }}global i32 0,
 // CHECK-DAG: @c = external global i32,
@@ -264,6 +265,15 @@
 // DEV5-NOT: define {{.*}}void {{.*}}host_fun{{.*}}
 #endif // OMP5
 
+struct PAIR {
+  int a;
+  int b;
+};
+
+#pragma omp declare target
+PAIR pair __attribute__((address_space(3), loader_uninitialized));
+#pragma omp end declare target
+
 #endif // HEADER
 
 #ifdef LOAD
diff --git a/clang/test/Sema/attr-loader-uninitialized.cpp b/clang/test/Sema/attr-loader-uninitialized.cpp
--- a/clang/test/Sema/attr-loader-uninitialized.cpp
+++ b/clang/test/Sema/attr-loader-uninitialized.cpp
@@ -5,7 +5,6 @@
 int hidden_ok __attribute__((visibility("hidden"))) __attribute__((loader_uninitialized));
 
 const int still_cant_be_const __attribute__((loader_uninitialized));
-// expected-error@-1 {{default initialization of an object of const type}}
 extern int external_rejected __attribute__((loader_uninitialized));
 // expected-error@-1 {{variable 'external_rejected' cannot be declared both 'extern' and with the 'loader_uninitialized' attribute}}