1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gdc.test/fail_compilation/fail10806.d b/gcc/testsuite/gdc.test/fail_compilation/fail10806.d
new file mode 100644
index 00000000000..48f35371ddc
--- /dev/null
+++ b/gcc/testsuite/gdc.test/fail_compilation/fail10806.d
@@ -0,0 +1,18 @@
+/*
+TEST_OUTPUT:
+---
+fail_compilation/fail10806.d(12): Error: function `fail10806.Class.clone` incompatible covariant types `First()` and `Second()`
+---
+*/
+
+interface First { First clone(); }
+interface Second { Second clone(); void call(); }
+
+class Class : First, Second {
+  override Class clone() { return this; }
+  override void call() { }
+}
+
+void main() {
+  (cast(Second) new Class).clone().call();
+}