4 files changed, 54 insertions, 0 deletions
diff --git a/tests/ui/coroutine/auxiliary/metadata-sufficient-for-layout.rs b/tests/ui/coroutine/auxiliary/metadata-sufficient-for-layout.rs
new file mode 100644
index 000000000..dc0521853
--- /dev/null
+++ b/tests/ui/coroutine/auxiliary/metadata-sufficient-for-layout.rs
@@ -0,0 +1,11 @@
+// compile-flags: --emit metadata
+#![feature(coroutines, coroutine_trait)]
+
+use std::marker::Unpin;
+use std::ops::Coroutine;
+
+pub fn g() -> impl Coroutine<(), Yield = (), Return = ()> {
+    || {
+        yield;
+    }
+}
diff --git a/tests/ui/coroutine/auxiliary/unwind-aux.rs b/tests/ui/coroutine/auxiliary/unwind-aux.rs
new file mode 100644
index 000000000..215d67691
--- /dev/null
+++ b/tests/ui/coroutine/auxiliary/unwind-aux.rs
@@ -0,0 +1,11 @@
+// compile-flags: -Cpanic=unwind  --crate-type=lib
+// no-prefer-dynamic
+// edition:2021
+
+#![feature(coroutines)]
+pub fn run<T>(a: T) {
+    let _ = move || {
+        drop(a);
+        yield;
+    };
+}
diff --git a/tests/ui/coroutine/auxiliary/xcrate-reachable.rs b/tests/ui/coroutine/auxiliary/xcrate-reachable.rs
new file mode 100644
index 000000000..673153f06
--- /dev/null
+++ b/tests/ui/coroutine/auxiliary/xcrate-reachable.rs
@@ -0,0 +1,14 @@
+#![feature(coroutines, coroutine_trait)]
+
+use std::ops::Coroutine;
+
+fn msg() -> u32 {
+    0
+}
+
+pub fn foo() -> impl Coroutine<(), Yield = (), Return = u32> {
+    || {
+        yield;
+        return msg();
+    }
+}
diff --git a/tests/ui/coroutine/auxiliary/xcrate.rs b/tests/ui/coroutine/auxiliary/xcrate.rs
new file mode 100644
index 000000000..f749a95ad
--- /dev/null
+++ b/tests/ui/coroutine/auxiliary/xcrate.rs
@@ -0,0 +1,18 @@
+#![feature(coroutines, coroutine_trait)]
+
+use std::marker::Unpin;
+use std::ops::Coroutine;
+
+pub fn foo() -> impl Coroutine<(), Yield = (), Return = ()> {
+    || {
+        if false {
+            yield;
+        }
+    }
+}
+
+pub fn bar<T: 'static>(t: T) -> Box<Coroutine<(), Yield = T, Return = ()> + Unpin> {
+    Box::new(|| {
+        yield t;
+    })
+}