From b9e09d8f65b9750ecb2f8e7860a1df9633735865 Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Fri, 13 Mar 2020 14:43:34 -0400
Subject: [PATCH] add test for negative specializes negative

---
 .../negative-impls/negative-specializes-negative.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 src/test/ui/traits/negative-impls/negative-specializes-negative.rs

diff --git a/src/test/ui/traits/negative-impls/negative-specializes-negative.rs b/src/test/ui/traits/negative-impls/negative-specializes-negative.rs
new file mode 100644
index 00000000000..877c3e8af4f
--- /dev/null
+++ b/src/test/ui/traits/negative-impls/negative-specializes-negative.rs
@@ -0,0 +1,13 @@
+#![feature(specialization)]
+#![feature(negative_impls)]
+
+// Test a negative impl that "specializes" another negative impl.
+//
+// run-pass
+
+trait MyTrait {}
+
+impl<T> !MyTrait for T {}
+impl !MyTrait for u32 {}
+
+fn main() {}
-- 
2.44.0