diff --git a/llvm/unittests/Support/ThreadPool.cpp b/llvm/unittests/Support/ThreadPool.cpp
--- a/llvm/unittests/Support/ThreadPool.cpp
+++ b/llvm/unittests/Support/ThreadPool.cpp
@@ -133,6 +133,13 @@
   ASSERT_EQ(2, i.load());
 }
 
+TEST_F(ThreadPoolTest, NonCopyableTask) {
+  CHECK_UNSUPPORTED();
+  ThreadPool Pool;
+  Pool.async([P = std::make_unique<int>()] {});
+  Pool.wait();
+};
+
 TEST_F(ThreadPoolTest, GetFuture) {
   CHECK_UNSUPPORTED();
   ThreadPool Pool(hardware_concurrency(2));