1 files changed, 11 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/coroutines.cpp b/clang/test/SemaCXX/coroutines.cpp
index a39ad1b4016..4588586d004 100644
--- a/clang/test/SemaCXX/coroutines.cpp
+++ b/clang/test/SemaCXX/coroutines.cpp
@@ -818,3 +818,14 @@ extern "C" int f(mismatch_gro_type_tag4) {
   co_return; //expected-note {{function is a coroutine due to use of 'co_return' here}}
 }
 
+struct bad_promise_no_return_func {
+  coro<bad_promise_no_return_func> get_return_object();
+  suspend_always initial_suspend();
+  suspend_always final_suspend();
+  void unhandled_exception();
+};
+// FIXME: Make this ill-formed because the promise type declares
+// neither return_value(...) or return_void().
+coro<bad_promise_no_return_func> no_return_value_or_return_void() {
+  co_await a;
+}