1 files changed, 11 insertions, 0 deletions
diff --git a/tests/ui/traits/alias/issue-108072-unmet-trait-alias-bound.rs b/tests/ui/traits/alias/issue-108072-unmet-trait-alias-bound.rs
new file mode 100644
index 000000000..d254c0ae3
--- /dev/null
+++ b/tests/ui/traits/alias/issue-108072-unmet-trait-alias-bound.rs
@@ -0,0 +1,11 @@
+// Regression test for #108072: do not ICE upon unmet trait alias constraint
+
+#![feature(trait_alias)]
+
+trait IteratorAlias = Iterator;
+
+fn f(_: impl IteratorAlias) {}
+
+fn main() {
+    f(()) //~ `()` is not an iterator
+}