--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/c2/IsInstanceTest.java	Tue Jul 12 18:24:48 2016 +0300
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 6894807
+ * @summary No ClassCastException for HashAttributeSet constructors if run with -Xcomp
+ *
+ * @run main compiler.c2.IsInstanceTest
+*/
+
+package compiler.c2;
+
+public class IsInstanceTest {
+
+    public static void main(String[] args) {
+        BaseInterface baseInterfaceImpl = new BaseInterfaceImpl();
+        for (int i = 0; i < 100000; i++) {
+            if (isInstanceOf(baseInterfaceImpl, ExtendedInterface.class)) {
+                throw new AssertionError("Failed at index:" + i);
+            }
+        }
+        System.out.println("Done!");
+    }
+
+    public static boolean isInstanceOf(BaseInterface baseInterfaceImpl, Class... baseInterfaceClasses) {
+        for (Class baseInterfaceClass : baseInterfaceClasses) {
+            if (baseInterfaceClass.isInstance(baseInterfaceImpl)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private interface BaseInterface {
+    }
+
+    private interface ExtendedInterface extends BaseInterface {
+    }
+
+    private static class BaseInterfaceImpl implements BaseInterface {
+    }
+}