89 lines
2.9 KiB
Java
89 lines
2.9 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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* @key randomness
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* @summary Test vectorization of numberOfTrailingZeros/numberOfLeadingZeros for Long
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* @requires vm.compiler2.enabled
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* @requires (os.simpleArch == "x64" & vm.cpu.features ~= ".*avx2.*") |
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* (os.simpleArch == "aarch64" & vm.cpu.features ~= ".*sve.*")
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* @library /test/lib /
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* @run driver compiler.vectorization.TestNumberOfContinuousZeros
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*/
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package compiler.vectorization;
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import compiler.lib.ir_framework.*;
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import java.util.Random;
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import jdk.test.lib.Asserts;
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public class TestNumberOfContinuousZeros {
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private long[] input;
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private int[] output;
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private static final int LEN = 1024;
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private Random rng;
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public static void main(String args[]) {
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TestFramework.run();
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}
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public TestNumberOfContinuousZeros() {
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input = new long[LEN];
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output = new int[LEN];
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rng = new Random(42);
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for (int i = 0; i < LEN; ++i) {
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input[i] = rng.nextLong();
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}
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}
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@Test
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@IR(counts = {IRNode.COUNTTRAILINGZEROS_VL, "> 0"})
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public void vectorizeNumberOfTrailingZeros() {
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for (int i = 0; i < LEN; ++i) {
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output[i] = Long.numberOfTrailingZeros(input[i]);
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}
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}
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@Test
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@IR(counts = {IRNode.COUNTLEADINGZEROS_VL, "> 0"})
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public void vectorizeNumberOfLeadingZeros() {
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for (int i = 0; i < LEN; ++i) {
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output[i] = Long.numberOfLeadingZeros(input[i]);
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}
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}
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@Run(test = {"vectorizeNumberOfTrailingZeros", "vectorizeNumberOfLeadingZeros"})
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public void checkResult() {
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vectorizeNumberOfTrailingZeros();
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for (int i = 0; i < LEN; ++i) {
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Asserts.assertEquals(output[i], Long.numberOfTrailingZeros(input[i]));
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}
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vectorizeNumberOfLeadingZeros();
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for (int i = 0; i < LEN; ++i) {
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Asserts.assertEquals(output[i], Long.numberOfLeadingZeros(input[i]));
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}
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}
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}
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