--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/5057225/Test5057225.java	Fri Jun 26 07:26:10 2009 -0700
@@ -0,0 +1,140 @@
+/*
+ * 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 5057225
+ * @summary Remove useless I2L conversions
+ *
+ * @run main/othervm -Xcomp -XX:CompileOnly=Test5057225.doload Test5057225
+ */
+
+import java.net.URLClassLoader;
+
+public class Test5057225 {
+    static byte[]  ba = new byte[]  { -1 };
+    static short[] sa = new short[] { -1 };
+    static int[]   ia = new int[]   { -1 };
+
+    static final long[] BYTE_MASKS = {
+         0x0FL,
+         0x7FL,  // 7-bit
+         0xFFL,
+    };
+
+    static final long[] SHORT_MASKS = {
+        0x000FL,
+        0x007FL,  // 7-bit
+        0x00FFL,
+        0x0FFFL,
+        0x3FFFL,  // 14-bit
+        0x7FFFL,  // 15-bit
+        0xFFFFL,
+    };
+
+    static final long[] INT_MASKS = {
+        0x0000000FL,
+        0x0000007FL,  // 7-bit
+        0x000000FFL,
+        0x00000FFFL,
+        0x00003FFFL,  // 14-bit
+        0x00007FFFL,  // 15-bit
+        0x0000FFFFL,
+        0x00FFFFFFL,
+        0x7FFFFFFFL,  // 31-bit
+        0xFFFFFFFFL,
+    };
+
+    public static void main(String[] args) throws Exception {
+        for (int i = 0; i < BYTE_MASKS.length; i++) {
+            System.setProperty("value", "" + BYTE_MASKS[i]);
+            loadAndRunClass("Test5057225$loadUB2L");
+        }
+
+        for (int i = 0; i < SHORT_MASKS.length; i++) {
+            System.setProperty("value", "" + SHORT_MASKS[i]);
+            loadAndRunClass("Test5057225$loadUS2L");
+        }
+
+        for (int i = 0; i < INT_MASKS.length; i++) {
+            System.setProperty("value", "" + INT_MASKS[i]);
+            loadAndRunClass("Test5057225$loadUI2L");
+        }
+    }
+
+    static void check(long result, long expected) {
+        if (result != expected)
+            throw new InternalError(result + " != " + expected);
+    }
+
+    static void loadAndRunClass(String classname) throws Exception {
+        Class cl = Class.forName(classname);
+        URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
+        ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
+        Class c = loader.loadClass(classname);
+        Runnable r = (Runnable) c.newInstance();
+        r.run();
+    }
+
+    public static class loadUB2L implements Runnable {
+        static final long MASK;
+        static {
+            long value = 0;
+            try {
+                value = Long.decode(System.getProperty("value"));
+            } catch (Throwable e) {}
+            MASK = value;
+        }
+
+        public void run() { check(doload(ba), MASK); }
+        static long doload(byte[] ba) { return ba[0] & MASK; }
+    }
+
+    public static class loadUS2L implements Runnable {
+        static final long MASK;
+        static {
+            long value = 0;
+            try {
+                value = Long.decode(System.getProperty("value"));
+            } catch (Throwable e) {}
+            MASK = value;
+        }
+
+        public void run() { check(doload(sa), MASK); }
+        static long doload(short[] sa) { return sa[0] & MASK; }
+    }
+
+    public static class loadUI2L implements Runnable {
+        static final long MASK;
+        static {
+            long value = 0;
+            try {
+                value = Long.decode(System.getProperty("value"));
+            } catch (Throwable e) {}
+            MASK = value;
+        }
+
+        public void run() { check(doload(ia), MASK); }
+        static long doload(int[] ia) { return ia[0] & MASK; }
+    }
+}