1 files changed, 15 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-15896.rs b/tests/ui/issues/issue-15896.rs
new file mode 100644
index 00000000000..d3153b516e6
--- /dev/null
+++ b/tests/ui/issues/issue-15896.rs
@@ -0,0 +1,15 @@
+// Regression test for #15896. It used to ICE rustc.
+
+fn main() {
+    enum R { REB(()) }
+    struct Tau { t: usize }
+    enum E { B(R, Tau) }
+
+    let e = E::B(R::REB(()), Tau { t: 3 });
+    let u = match e {
+        E::B(
+          Tau{t: x},
+          //~^ ERROR mismatched types
+          _) => x,
+    };
+}