62 lines
2.0 KiB
Java
62 lines
2.0 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.c2.irTests;
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import compiler.lib.ir_framework.*;
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/*
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* @test
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* @bug 8284981
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* @summary Auto-vectorization enhancement for special counting down loops
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* @requires os.arch=="amd64" | os.arch=="x86_64" | os.arch=="aarch64"
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* @library /test/lib /
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* @run driver compiler.c2.irTests.TestAutoVecCountingDownLoop
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*/
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public class TestAutoVecCountingDownLoop {
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final private static int ARRLEN = 3000;
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private static int[] a = new int[ARRLEN];
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private static int[] b = new int[ARRLEN];
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public static void main(String[] args) {
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TestFramework.run();
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}
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@Test
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@IR(counts = {IRNode.LOAD_VECTOR_I, " >0 "})
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@IR(counts = {IRNode.STORE_VECTOR, " >0 "})
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private static void testCountingDown(int[] a, int[] b) {
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for (int i = 2000; i > 0; i--) {
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b[ARRLEN - i] = a[ARRLEN - i];
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}
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}
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@Run(test = "testCountingDown")
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private void testCountingDown_runner() {
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testCountingDown(a, b);
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}
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}
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