twisti@1259: /*
trims@1907:  * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
twisti@1259:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
twisti@1259:  *
twisti@1259:  * This code is free software; you can redistribute it and/or modify it
twisti@1259:  * under the terms of the GNU General Public License version 2 only, as
twisti@1259:  * published by the Free Software Foundation.
twisti@1259:  *
twisti@1259:  * This code is distributed in the hope that it will be useful, but WITHOUT
twisti@1259:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
twisti@1259:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
twisti@1259:  * version 2 for more details (a copy is included in the LICENSE file that
twisti@1259:  * accompanied this code).
twisti@1259:  *
twisti@1259:  * You should have received a copy of the GNU General Public License version
twisti@1259:  * 2 along with this work; if not, write to the Free Software Foundation,
twisti@1259:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
twisti@1259:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
twisti@1259:  */
twisti@1259: 
twisti@1259: /**
twisti@1259:  * @test
twisti@1259:  * @bug 5057225
twisti@1259:  * @summary Remove useless I2L conversions
twisti@1259:  *
twisti@1259:  * @run main/othervm -Xcomp -XX:CompileOnly=Test5057225.doload Test5057225
twisti@1259:  */
twisti@1259: 
twisti@1259: import java.net.URLClassLoader;
twisti@1259: 
twisti@1259: public class Test5057225 {
twisti@1259:     static byte[]  ba = new byte[]  { -1 };
twisti@1259:     static short[] sa = new short[] { -1 };
twisti@1259:     static int[]   ia = new int[]   { -1 };
twisti@1259: 
twisti@1259:     static final long[] BYTE_MASKS = {
twisti@1259:          0x0FL,
twisti@1259:          0x7FL,  // 7-bit
twisti@1259:          0xFFL,
twisti@1259:     };
twisti@1259: 
twisti@1259:     static final long[] SHORT_MASKS = {
twisti@1259:         0x000FL,
twisti@1259:         0x007FL,  // 7-bit
twisti@1259:         0x00FFL,
twisti@1259:         0x0FFFL,
twisti@1259:         0x3FFFL,  // 14-bit
twisti@1259:         0x7FFFL,  // 15-bit
twisti@1259:         0xFFFFL,
twisti@1259:     };
twisti@1259: 
twisti@1259:     static final long[] INT_MASKS = {
twisti@1259:         0x0000000FL,
twisti@1259:         0x0000007FL,  // 7-bit
twisti@1259:         0x000000FFL,
twisti@1259:         0x00000FFFL,
twisti@1259:         0x00003FFFL,  // 14-bit
twisti@1259:         0x00007FFFL,  // 15-bit
twisti@1259:         0x0000FFFFL,
twisti@1259:         0x00FFFFFFL,
twisti@1259:         0x7FFFFFFFL,  // 31-bit
twisti@1259:         0xFFFFFFFFL,
twisti@1259:     };
twisti@1259: 
twisti@1259:     public static void main(String[] args) throws Exception {
twisti@1259:         for (int i = 0; i < BYTE_MASKS.length; i++) {
twisti@1259:             System.setProperty("value", "" + BYTE_MASKS[i]);
twisti@1259:             loadAndRunClass("Test5057225$loadUB2L");
twisti@1259:         }
twisti@1259: 
twisti@1259:         for (int i = 0; i < SHORT_MASKS.length; i++) {
twisti@1259:             System.setProperty("value", "" + SHORT_MASKS[i]);
twisti@1259:             loadAndRunClass("Test5057225$loadUS2L");
twisti@1259:         }
twisti@1259: 
twisti@1259:         for (int i = 0; i < INT_MASKS.length; i++) {
twisti@1259:             System.setProperty("value", "" + INT_MASKS[i]);
twisti@1259:             loadAndRunClass("Test5057225$loadUI2L");
twisti@1259:         }
twisti@1259:     }
twisti@1259: 
twisti@1259:     static void check(long result, long expected) {
twisti@1259:         if (result != expected)
twisti@1259:             throw new InternalError(result + " != " + expected);
twisti@1259:     }
twisti@1259: 
twisti@1259:     static void loadAndRunClass(String classname) throws Exception {
twisti@1259:         Class cl = Class.forName(classname);
twisti@1259:         URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
twisti@1259:         ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
twisti@1259:         Class c = loader.loadClass(classname);
twisti@1259:         Runnable r = (Runnable) c.newInstance();
twisti@1259:         r.run();
twisti@1259:     }
twisti@1259: 
twisti@1259:     public static class loadUB2L implements Runnable {
twisti@1259:         static final long MASK;
twisti@1259:         static {
twisti@1259:             long value = 0;
twisti@1259:             try {
twisti@1259:                 value = Long.decode(System.getProperty("value"));
twisti@1259:             } catch (Throwable e) {}
twisti@1259:             MASK = value;
twisti@1259:         }
twisti@1259: 
twisti@1259:         public void run() { check(doload(ba), MASK); }
twisti@1259:         static long doload(byte[] ba) { return ba[0] & MASK; }
twisti@1259:     }
twisti@1259: 
twisti@1259:     public static class loadUS2L implements Runnable {
twisti@1259:         static final long MASK;
twisti@1259:         static {
twisti@1259:             long value = 0;
twisti@1259:             try {
twisti@1259:                 value = Long.decode(System.getProperty("value"));
twisti@1259:             } catch (Throwable e) {}
twisti@1259:             MASK = value;
twisti@1259:         }
twisti@1259: 
twisti@1259:         public void run() { check(doload(sa), MASK); }
twisti@1259:         static long doload(short[] sa) { return sa[0] & MASK; }
twisti@1259:     }
twisti@1259: 
twisti@1259:     public static class loadUI2L implements Runnable {
twisti@1259:         static final long MASK;
twisti@1259:         static {
twisti@1259:             long value = 0;
twisti@1259:             try {
twisti@1259:                 value = Long.decode(System.getProperty("value"));
twisti@1259:             } catch (Throwable e) {}
twisti@1259:             MASK = value;
twisti@1259:         }
twisti@1259: 
twisti@1259:         public void run() { check(doload(ia), MASK); }
twisti@1259:         static long doload(int[] ia) { return ia[0] & MASK; }
twisti@1259:     }
twisti@1259: }