106 lines
3.3 KiB
Java
106 lines
3.3 KiB
Java
/*
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* Copyright (c) 2022, 2023, Arm Limited. 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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* @summary Vectorization test on array unsafe operations
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* @library /test/lib /
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*
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* @build jdk.test.whitebox.WhiteBox
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* compiler.vectorization.runner.VectorizationTestRunner
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*
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:.
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* -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI
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* compiler.vectorization.runner.ArrayUnsafeOpTest
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*
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* @requires vm.compiler2.enabled
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*/
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package compiler.vectorization.runner;
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import compiler.lib.ir_framework.*;
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import java.lang.reflect.Field;
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import sun.misc.Unsafe;
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public class ArrayUnsafeOpTest extends VectorizationTestRunner {
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private static final int SIZE = 543;
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private static Unsafe unsafe;
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public ArrayUnsafeOpTest() throws Exception {
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Class klass = Unsafe.class;
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Field field = klass.getDeclaredField("theUnsafe");
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field.setAccessible(true);
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unsafe = (Unsafe) field.get(null);
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}
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@Test
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public byte[] arrayUnsafeFill() {
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byte[] res = new byte[SIZE];
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for (int i = 0; i < 500; i++) {
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unsafe.putByte(res, i + 24, (byte) i);
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}
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return res;
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}
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@Test
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public byte[] arrayUnsafeFillWithOneAddp() {
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byte[] res = new byte[SIZE];
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for (int i = 123; i < 500; i++) {
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unsafe.putByte(res, i, (byte) i);
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}
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return res;
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}
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@Test
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// Note that this case cannot be vectorized since data dependence
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// exists between two unsafe stores of different types on the same
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// array reference.
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public int[] arrayUnsafeFillTypeMismatch() {
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int[] res = new int[SIZE];
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for (int i = 0; i < 500; i++) {
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unsafe.putByte(res, i + 24, (byte) i);
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unsafe.putShort(res, i + 28, (short) 0);
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}
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return res;
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}
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@Test
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// Note that this case cannot be vectorized since data dependence
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// exists between adjacent iterations. (The memory address storing
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// an int array is not increased by 4 per iteration.)
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@IR(failOn = {IRNode.STORE_VECTOR})
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public int[] arrayUnsafeFillAddrIncrMismatch() {
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int[] res = new int[SIZE];
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for (int i = 0; i < 500; i++) {
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unsafe.putInt(res, i + 24, i);
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}
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return res;
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}
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}
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