1 files changed, 11 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-43357.rs b/tests/ui/issues/issue-43357.rs
new file mode 100644
index 00000000000..474c9765595
--- /dev/null
+++ b/tests/ui/issues/issue-43357.rs
@@ -0,0 +1,11 @@
+// check-pass
+#![allow(dead_code)]
+trait Trait {
+    type Output;
+}
+
+fn f<T: Trait>() {
+    std::mem::size_of::<T::Output>();
+}
+
+fn main() {}