diff --git a/mlir/unittests/Conversion/PDLToPDLInterp/RootOrderingTest.cpp b/mlir/unittests/Conversion/PDLToPDLInterp/RootOrderingTest.cpp
--- a/mlir/unittests/Conversion/PDLToPDLInterp/RootOrderingTest.cpp
+++ b/mlir/unittests/Conversion/PDLToPDLInterp/RootOrderingTest.cpp
@@ -33,6 +33,11 @@
     createValues();
   }
 
+  ~RootOrderingTest() {
+    for (int i = 0; i < 4; ++i)
+      v[i].getDefiningOp()->destroy();
+  }
+
   /// Creates the test values.
   void createValues() {
     OpBuilder builder(&context);