147 lines
4.5 KiB
Java
147 lines
4.5 KiB
Java
/*
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* Copyright (c) 2009, 2016, 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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* 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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* @test
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* @bug 5057225
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* @summary Remove useless I2L conversions
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* @modules java.base/jdk.internal.misc
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* @library /test/lib
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*
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* @run main/othervm -Xcomp
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* -XX:CompileCommand=compileonly,compiler.c2.Test5057225::doload
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* compiler.c2.Test5057225
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*/
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package compiler.c2;
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import jdk.test.lib.Utils;
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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.class.getName() + "$loadUB2L");
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}
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for (int i = 0; i < SHORT_MASKS.length; i++) {
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System.setProperty("value", "" + SHORT_MASKS[i]);
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loadAndRunClass(Test5057225.class.getName() + "$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.class.getName() + "$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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ClassLoader apploader = cl.getClassLoader();
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ClassLoader loader
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= Utils.getTestClassPathURLClassLoader(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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}
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