--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6589834/Test_ia32.java	Thu Apr 23 14:04:24 2009 -0700
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug 6589834
+ * @summary: deoptimization problem with -XX:+DeoptimizeALot
+ *
+ * @run main/othervm -server Test_ia32
+ */
+
+/***************************************************************************************
+NOTE: The bug shows up (with several "Bug!" message) even without the
+      flag -XX:+DeoptimizeALot. In a debug build, you may want to try
+      the flags -XX:+VerifyStack and -XX:+DeoptimizeALot to get more information.
+****************************************************************************************/
+import java.lang.reflect.Constructor;
+
+public class Test_ia32 {
+
+    public static int NUM_THREADS = 100;
+
+    public static int CLONE_LENGTH = 1000;
+
+    public static void main(String[] args) throws InterruptedException, ClassNotFoundException {
+
+        Reflector[] threads = new Reflector[NUM_THREADS];
+        for (int i = 0; i < threads.length; i++) {
+            threads[i] = new Reflector();
+            threads[i].start();
+        }
+
+        System.out.println("Give Reflector.run() some time to compile...");
+        Thread.sleep(5000);
+
+        System.out.println("Load RMISecurityException causing run() deoptimization");
+        ClassLoader.getSystemClassLoader().loadClass("java.rmi.RMISecurityException");
+
+        for (Reflector thread : threads)
+            thread.requestStop();
+
+        for (Reflector thread : threads)
+            try {
+                thread.join();
+            } catch (InterruptedException e) {
+                System.out.println(e);
+            }
+
+    }
+
+}
+
+class Reflector extends Thread {
+
+    volatile boolean _doSpin = true;
+
+    Test_ia32[] _tests;
+
+    Reflector() {
+        _tests = new Test_ia32[Test_ia32.CLONE_LENGTH];
+        for (int i = 0; i < _tests.length; i++) {
+            _tests[i] = new Test_ia32();
+        }
+    }
+
+    static int g(int i1, int i2, Test_ia32[] arr, int i3, int i4) {
+
+        if (!(i1==1 && i2==2 && i3==3 && i4==4)) {
+            System.out.println("Bug!");
+        }
+
+        return arr.length;
+    }
+
+    static int f(Test_ia32[] arr) {
+        return g(1, 2, arr.clone(), 3, 4);
+    }
+
+    @Override
+    public void run() {
+        Constructor[] ctrs = null;
+        Class<Test_ia32> klass = Test_ia32.class;
+        try {
+            ctrs = klass.getConstructors();
+        } catch (SecurityException e) {
+            System.out.println(e);
+        }
+
+        try {
+            while (_doSpin) {
+                if (f(_tests) < 0)
+                    System.out.println("return value usage");
+            }
+        } catch (NullPointerException e) {
+            e.printStackTrace();
+        }
+
+        System.out.println(this + " - stopped.");
+    }
+
+    public void requestStop() {
+        System.out.println(this + " - stop requested.");
+        _doSpin = false;
+    }
+
+}