103 lines
3.2 KiB
Java
103 lines
3.2 KiB
Java
/*
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* Copyright (c) 2022, 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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package compiler.vectorization;
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import compiler.lib.ir_framework.*;
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/*
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* @test
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* @bug 8297689
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* @summary Test miscompilation of reverseBytes call from subword types
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* @library /test/lib /
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* @requires vm.compiler2.enabled
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* @run driver compiler.vectorization.TestSubwordReverseBytes
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*/
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public class TestSubwordReverseBytes {
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private static final int SIZE = 32000;
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private static int[] idx = new int[SIZE];
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private static short[] rbs = new short[SIZE];
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private static char[] rbc = new char[SIZE];
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static {
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for (int i = 0; i < SIZE; i++) {
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idx[i] = i;
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}
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for (short s = 0; s < SIZE; s++) {
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rbs[s] = Short.reverseBytes(s);
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}
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for (char c = 0; c < SIZE; c++) {
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rbc[c] = Character.reverseBytes(c);
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}
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}
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@Test
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@IR(failOn = {IRNode.REVERSE_BYTES_VS})
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public static int[] testShortReverseBytes() {
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int[] res = new int[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = Short.reverseBytes((short) idx[i]);
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}
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return res;
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}
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@Run(test = "testShortReverseBytes")
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public static void testShort() {
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int[] res = testShortReverseBytes();
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for (int i = 0; i < SIZE; i++) {
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if (res[i] != rbs[i]) {
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throw new RuntimeException("Wrong result: expected = " +
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(int) rbs[i] + ", actual = " + res[i]);
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}
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}
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}
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@Test
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@IR(failOn = {IRNode.REVERSE_BYTES_VS})
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public static int[] testCharacterReverseBytes() {
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int[] res = new int[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = Character.reverseBytes((char) idx[i]);
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}
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return res;
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}
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@Run(test = "testCharacterReverseBytes")
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public static void testChar() {
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int[] res = testCharacterReverseBytes();
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for (int i = 0; i < SIZE; i++) {
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if (res[i] != rbc[i]) {
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throw new RuntimeException("Wrong result: expected = " +
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(int) rbc[i] + ", actual = " + res[i]);
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}
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}
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}
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public static void main(String[] args) {
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TestFramework.run();
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}
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}
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