61 lines
1.8 KiB
Java
61 lines
1.8 KiB
Java
/*
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* Copyright (c) 2024, 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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package compiler.loopopts.superword;
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/*
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* @test
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* @bug 8333876
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* @summary Test parallel reductions.
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* @run main compiler.loopopts.superword.TestParallelReduction
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*/
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public class TestParallelReduction {
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static int RANGE = 10_000;
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public static void main(String[] args) {
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float[] a = new float[RANGE];
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for (int i = 0; i < a.length; i++) {
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a[i] = i;
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}
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float gold = test(a);
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for (int i = 0; i < 10_000; i++) {
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if (test(a) != gold) {
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throw new RuntimeException("wrong value");
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}
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}
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}
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static float test(float[] a) {
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float x = 0;
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float y = 0;
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for (int i = 0; i < a.length; i+=2) {
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x += a[i+0];
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y += a[i+1];
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}
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return x+y;
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}
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}
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