1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/bound_reduction.rs b/src/test/ui/type-alias-impl-trait/bound_reduction.rs
new file mode 100644
index 000000000..b9b50f0b7
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/bound_reduction.rs
@@ -0,0 +1,19 @@
+// build-pass (FIXME(62277): could be check-pass?)
+
+#![allow(warnings)]
+#![feature(type_alias_impl_trait)]
+
+fn main() {
+}
+
+type Foo<V> = impl std::fmt::Debug;
+
+trait Trait<U> {}
+
+fn foo_desugared<T: Trait<[u32; {
+    #[no_mangle]
+    static FOO: usize = 42;
+    3
+}]>>(_: T) -> Foo<T> {
+    (42, std::marker::PhantomData::<T>)
+}