1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/nll/empty-type-predicate-2.rs b/src/test/ui/nll/empty-type-predicate-2.rs
new file mode 100644
index 000000000..20d6e47f7
--- /dev/null
+++ b/src/test/ui/nll/empty-type-predicate-2.rs
@@ -0,0 +1,18 @@
+// Regression test for #65553
+//
+// `D::Error:` is lowered to `D::Error: ReEmpty` - check that we don't ICE in
+// NLL for the unexpected region.
+
+// check-pass
+
+trait Deserializer {
+    type Error;
+}
+
+fn d1<D: Deserializer>() where D::Error: {}
+
+fn d2<D: Deserializer>() {
+    d1::<D>();
+}
+
+fn main() {}