824N/A/*
1472N/A * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
824N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
824N/A *
824N/A * This code is free software; you can redistribute it and/or modify it
824N/A * under the terms of the GNU General Public License version 2 only, as
824N/A * published by the Free Software Foundation.
824N/A *
824N/A * This code is distributed in the hope that it will be useful, but WITHOUT
824N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
824N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
824N/A * version 2 for more details (a copy is included in the LICENSE file that
824N/A * accompanied this code).
824N/A *
824N/A * You should have received a copy of the GNU General Public License version
824N/A * 2 along with this work; if not, write to the Free Software Foundation,
824N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
824N/A *
1472N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1472N/A * or visit www.oracle.com if you need additional information or have any
1472N/A * questions.
824N/A */
824N/A
824N/A/**
824N/A * @test
824N/A * @bug 5057225
824N/A * @summary Remove useless I2L conversions
824N/A *
824N/A * @run main/othervm -Xcomp -XX:CompileOnly=Test5057225.doload Test5057225
824N/A */
824N/A
824N/Aimport java.net.URLClassLoader;
824N/A
824N/Apublic class Test5057225 {
824N/A static byte[] ba = new byte[] { -1 };
824N/A static short[] sa = new short[] { -1 };
824N/A static int[] ia = new int[] { -1 };
824N/A
824N/A static final long[] BYTE_MASKS = {
824N/A 0x0FL,
824N/A 0x7FL, // 7-bit
824N/A 0xFFL,
824N/A };
824N/A
824N/A static final long[] SHORT_MASKS = {
824N/A 0x000FL,
824N/A 0x007FL, // 7-bit
824N/A 0x00FFL,
824N/A 0x0FFFL,
824N/A 0x3FFFL, // 14-bit
824N/A 0x7FFFL, // 15-bit
824N/A 0xFFFFL,
824N/A };
824N/A
824N/A static final long[] INT_MASKS = {
824N/A 0x0000000FL,
824N/A 0x0000007FL, // 7-bit
824N/A 0x000000FFL,
824N/A 0x00000FFFL,
824N/A 0x00003FFFL, // 14-bit
824N/A 0x00007FFFL, // 15-bit
824N/A 0x0000FFFFL,
824N/A 0x00FFFFFFL,
824N/A 0x7FFFFFFFL, // 31-bit
824N/A 0xFFFFFFFFL,
824N/A };
824N/A
824N/A public static void main(String[] args) throws Exception {
824N/A for (int i = 0; i < BYTE_MASKS.length; i++) {
824N/A System.setProperty("value", "" + BYTE_MASKS[i]);
824N/A loadAndRunClass("Test5057225$loadUB2L");
824N/A }
824N/A
824N/A for (int i = 0; i < SHORT_MASKS.length; i++) {
824N/A System.setProperty("value", "" + SHORT_MASKS[i]);
824N/A loadAndRunClass("Test5057225$loadUS2L");
824N/A }
824N/A
824N/A for (int i = 0; i < INT_MASKS.length; i++) {
824N/A System.setProperty("value", "" + INT_MASKS[i]);
824N/A loadAndRunClass("Test5057225$loadUI2L");
824N/A }
824N/A }
824N/A
824N/A static void check(long result, long expected) {
824N/A if (result != expected)
824N/A throw new InternalError(result + " != " + expected);
824N/A }
824N/A
824N/A static void loadAndRunClass(String classname) throws Exception {
824N/A Class cl = Class.forName(classname);
824N/A URLClassLoader apploader = (URLClassLoader) cl.getClassLoader();
824N/A ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent());
824N/A Class c = loader.loadClass(classname);
824N/A Runnable r = (Runnable) c.newInstance();
824N/A r.run();
824N/A }
824N/A
824N/A public static class loadUB2L implements Runnable {
824N/A static final long MASK;
824N/A static {
824N/A long value = 0;
824N/A try {
824N/A value = Long.decode(System.getProperty("value"));
824N/A } catch (Throwable e) {}
824N/A MASK = value;
824N/A }
824N/A
824N/A public void run() { check(doload(ba), MASK); }
824N/A static long doload(byte[] ba) { return ba[0] & MASK; }
824N/A }
824N/A
824N/A public static class loadUS2L implements Runnable {
824N/A static final long MASK;
824N/A static {
824N/A long value = 0;
824N/A try {
824N/A value = Long.decode(System.getProperty("value"));
824N/A } catch (Throwable e) {}
824N/A MASK = value;
824N/A }
824N/A
824N/A public void run() { check(doload(sa), MASK); }
824N/A static long doload(short[] sa) { return sa[0] & MASK; }
824N/A }
824N/A
824N/A public static class loadUI2L implements Runnable {
824N/A static final long MASK;
824N/A static {
824N/A long value = 0;
824N/A try {
824N/A value = Long.decode(System.getProperty("value"));
824N/A } catch (Throwable e) {}
824N/A MASK = value;
824N/A }
824N/A
824N/A public void run() { check(doload(ia), MASK); }
824N/A static long doload(int[] ia) { return ia[0] & MASK; }
824N/A }
824N/A}