1 files changed, 14 insertions, 0 deletions
diff --git a/tests/patmat/t7669.scala b/tests/patmat/t7669.scala
new file mode 100644
index 000000000..3aa74129e
--- /dev/null
+++ b/tests/patmat/t7669.scala
@@ -0,0 +1,14 @@
+object Test {
+
+  sealed abstract class Expr
+  // Change type of `arg` to `Any` and the exhaustiveness warning
+  // is issued below
+  case class Op(arg: Expr) extends Expr
+  case class NotHandled(num: Double) extends Expr
+
+
+  def exhausto(expr: Expr): Unit = expr match {
+    case Op(Op(_)) =>
+    case Op(_) =>
+  }
+}