1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/traits/vtable/vtable-vacant.rs b/src/test/ui/traits/vtable/vtable-vacant.rs
new file mode 100644
index 000000000..a64796358
--- /dev/null
+++ b/src/test/ui/traits/vtable/vtable-vacant.rs
@@ -0,0 +1,31 @@
+// build-fail
+#![feature(rustc_attrs)]
+#![feature(negative_impls)]
+#![allow(where_clauses_object_safety)]
+
+// B --> A
+
+#[rustc_dump_vtable]
+trait A {
+    fn foo_a1(&self) {}
+    fn foo_a2(&self) where Self: Send {}
+}
+
+#[rustc_dump_vtable]
+trait B: A {
+    //~^ error vtable
+    fn foo_b1(&self) {}
+    fn foo_b2(&self) where Self: Send {}
+}
+
+struct S;
+impl !Send for S {}
+
+impl A for S {}
+impl B for S {}
+
+fn foo(_: &dyn B) {}
+
+fn main() {
+    foo(&S);
+}