author | trims |
Thu, 27 May 2010 19:08:38 -0700 | |
changeset 5547 | f4b087cbb361 |
parent 3177 | f467776fc753 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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||
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/** |
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* @test |
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* @bug 5057225 |
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* @summary Remove useless I2L conversions |
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* |
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* @run main/othervm -Xcomp -XX:CompileOnly=Test5057225.doload Test5057225 |
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*/ |
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import java.net.URLClassLoader; |
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public class Test5057225 { |
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static byte[] ba = new byte[] { -1 }; |
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static short[] sa = new short[] { -1 }; |
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static int[] ia = new int[] { -1 }; |
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static final long[] BYTE_MASKS = { |
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0x0FL, |
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0x7FL, // 7-bit |
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0xFFL, |
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}; |
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static final long[] SHORT_MASKS = { |
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0x000FL, |
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0x007FL, // 7-bit |
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0x00FFL, |
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0x0FFFL, |
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0x3FFFL, // 14-bit |
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0x7FFFL, // 15-bit |
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0xFFFFL, |
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}; |
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static final long[] INT_MASKS = { |
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0x0000000FL, |
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0x0000007FL, // 7-bit |
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0x000000FFL, |
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0x00000FFFL, |
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0x00003FFFL, // 14-bit |
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0x00007FFFL, // 15-bit |
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0x0000FFFFL, |
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0x00FFFFFFL, |
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0x7FFFFFFFL, // 31-bit |
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0xFFFFFFFFL, |
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}; |
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public static void main(String[] args) throws Exception { |
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for (int i = 0; i < BYTE_MASKS.length; i++) { |
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System.setProperty("value", "" + BYTE_MASKS[i]); |
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loadAndRunClass("Test5057225$loadUB2L"); |
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} |
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for (int i = 0; i < SHORT_MASKS.length; i++) { |
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System.setProperty("value", "" + SHORT_MASKS[i]); |
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loadAndRunClass("Test5057225$loadUS2L"); |
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} |
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for (int i = 0; i < INT_MASKS.length; i++) { |
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System.setProperty("value", "" + INT_MASKS[i]); |
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loadAndRunClass("Test5057225$loadUI2L"); |
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} |
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} |
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static void check(long result, long expected) { |
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if (result != expected) |
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throw new InternalError(result + " != " + expected); |
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} |
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static void loadAndRunClass(String classname) throws Exception { |
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Class cl = Class.forName(classname); |
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URLClassLoader apploader = (URLClassLoader) cl.getClassLoader(); |
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ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent()); |
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Class c = loader.loadClass(classname); |
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Runnable r = (Runnable) c.newInstance(); |
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r.run(); |
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} |
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public static class loadUB2L implements Runnable { |
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static final long MASK; |
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static { |
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long value = 0; |
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try { |
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value = Long.decode(System.getProperty("value")); |
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} catch (Throwable e) {} |
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MASK = value; |
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} |
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public void run() { check(doload(ba), MASK); } |
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static long doload(byte[] ba) { return ba[0] & MASK; } |
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} |
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public static class loadUS2L implements Runnable { |
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static final long MASK; |
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static { |
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long value = 0; |
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try { |
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value = Long.decode(System.getProperty("value")); |
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} catch (Throwable e) {} |
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MASK = value; |
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} |
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public void run() { check(doload(sa), MASK); } |
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static long doload(short[] sa) { return sa[0] & MASK; } |
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} |
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public static class loadUI2L implements Runnable { |
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static final long MASK; |
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static { |
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long value = 0; |
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try { |
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value = Long.decode(System.getProperty("value")); |
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} catch (Throwable e) {} |
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MASK = value; |
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} |
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public void run() { check(doload(ia), MASK); } |
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static long doload(int[] ia) { return ia[0] & MASK; } |
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} |
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} |