1 files changed, 14 insertions, 0 deletions
diff --git a/tests/ui/mir/mir_query_cycle.rs b/tests/ui/mir/mir_query_cycle.rs
new file mode 100644
index 00000000000..22d1ccb6c6e
--- /dev/null
+++ b/tests/ui/mir/mir_query_cycle.rs
@@ -0,0 +1,14 @@
+// Regression test for #121094.
+// build-pass
+// compile-flags: -O --crate-type=lib
+// edition: 2021
+use std::{future::Future, pin::Pin};
+
+pub async fn foo(count: u32) {
+    if count == 0 {
+        return
+    } else {
+        let fut: Pin<Box<dyn Future<Output = ()>>> = Box::pin(foo(count - 1));
+        fut.await;
+    }
+}