1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/specialization/min_specialization/implcit-well-formed-bounds.rs b/src/test/ui/specialization/min_specialization/implcit-well-formed-bounds.rs
new file mode 100644
index 000000000..98d7f9194
--- /dev/null
+++ b/src/test/ui/specialization/min_specialization/implcit-well-formed-bounds.rs
@@ -0,0 +1,30 @@
+// Test that specializing on the well-formed predicates of the trait and
+// self-type of an impl is allowed.
+
+// check-pass
+
+#![feature(min_specialization)]
+
+struct OrdOnly<T: Ord>(T);
+
+trait SpecTrait<U> {
+    fn f();
+}
+
+impl<T, U> SpecTrait<U> for T {
+    default fn f() {}
+}
+
+impl<T: Ord> SpecTrait<()> for OrdOnly<T> {
+    fn f() {}
+}
+
+impl<T: Ord> SpecTrait<OrdOnly<T>> for () {
+    fn f() {}
+}
+
+impl<T: Ord, U: Ord, V: Ord> SpecTrait<(OrdOnly<T>, OrdOnly<U>)> for &[OrdOnly<V>] {
+    fn f() {}
+}
+
+fn main() {}