1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/consts/packed_pattern2.rs b/tests/ui/consts/packed_pattern2.rs
new file mode 100644
index 00000000000..ef68d9e513a
--- /dev/null
+++ b/tests/ui/consts/packed_pattern2.rs
@@ -0,0 +1,27 @@
+// run-pass
+
+#[derive(PartialEq, Eq, Copy, Clone)]
+#[repr(packed)]
+struct Foo {
+    field: (u8, u16),
+}
+
+#[derive(PartialEq, Eq, Copy, Clone)]
+#[repr(align(2))]
+struct Bar {
+    a: Foo,
+}
+
+const FOO: Bar = Bar {
+    a: Foo {
+        field: (5, 6),
+    }
+};
+
+fn main() {
+    match FOO {
+        Bar { a: Foo { field: (5, 6) } } => {},
+        FOO => unreachable!(), //~ WARNING unreachable pattern
+        _ => unreachable!(),
+    }
+}