137 lines
4.7 KiB
Java
137 lines
4.7 KiB
Java
/*
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* Copyright (c) 2015, 2023, 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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/**
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* @test
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* @bug 8074981
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* @summary Add C2 x86 Superword support for scalar sum reduction optimizations : double test
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* @library /test/lib /
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* @run driver compiler.loopopts.superword.SumRed_Double
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*/
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package compiler.loopopts.superword;
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import compiler.lib.ir_framework.*;
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public class SumRed_Double {
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public static void main(String[] args) throws Exception {
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TestFramework framework = new TestFramework();
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framework.addFlags("-XX:+IgnoreUnrecognizedVMOptions",
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"-XX:LoopUnrollLimit=250",
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"-XX:CompileThresholdScaling=0.1");
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int i = 0;
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Scenario[] scenarios = new Scenario[6];
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for (String reductionSign : new String[] {"+", "-"}) {
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for (int maxUnroll : new int[] {4, 8, 16}) {
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scenarios[i] = new Scenario(i, "-XX:" + reductionSign + "SuperWordReductions",
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"-XX:LoopMaxUnroll=" + maxUnroll);
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i++;
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}
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}
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framework.addScenarios(scenarios);
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framework.start();
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}
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@Run(test = {"sumReductionImplement",
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"sumReductionWithStoreImplement"},
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mode = RunMode.STANDALONE)
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public static void runTests() throws Exception {
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double[] a = new double[256 * 1024];
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double[] b = new double[256 * 1024];
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double[] c = new double[256 * 1024];
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double[] d = new double[256 * 1024];
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sumReductionInit(a, b, c);
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double total = 0;
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double valid = 3.6028590866691944E19;
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for (int j = 0; j < 2000; j++) {
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total = sumReductionImplement(a, b, c, total);
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}
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testCorrectness(total, valid, "sumReduction");
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total = 0;
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for (int j = 0; j < 2000; j++) {
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total = sumReductionWithStoreImplement(a, b, c, d, total);
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}
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testCorrectness(total, valid, "sumReductionWithStore");
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}
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public static void sumReductionInit(
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double[] a,
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double[] b,
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double[] c) {
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for (int j = 0; j < 1; j++) {
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for (int i = 0; i < a.length; i++) {
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a[i] = i * 1 + j;
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b[i] = i * 1 - j;
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c[i] = i + j;
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}
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}
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}
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/* Vectorization is expected but not enabled.
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A positive IR rule should be added later. */
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@Test
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@IR(applyIf = {"SuperWordReductions", "false"},
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failOn = {IRNode.ADD_REDUCTION_VD})
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public static double sumReductionImplement(
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double[] a,
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double[] b,
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double[] c,
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double total) {
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for (int i = 0; i < a.length; i++) {
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total += (a[i] * b[i]) + (a[i] * c[i]) + (b[i] * c[i]);
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}
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return total;
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}
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@Test
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@IR(applyIf = {"SuperWordReductions", "false"},
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failOn = {IRNode.ADD_REDUCTION_VD})
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@IR(applyIfCPUFeature = {"sse2", "true"},
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applyIfAnd = {"SuperWordReductions", "true", "LoopMaxUnroll", ">= 8"},
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counts = {IRNode.ADD_REDUCTION_VD, ">= 1"})
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public static double sumReductionWithStoreImplement(
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double[] a,
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double[] b,
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double[] c,
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double[] d,
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double total) {
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for (int i = 0; i < a.length; i++) {
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d[i] = (a[i] * b[i]) + (a[i] * c[i]) + (b[i] * c[i]);
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total += d[i];
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}
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return total;
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}
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public static void testCorrectness(
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double total,
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double valid,
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String op) throws Exception {
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if (total != valid) {
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throw new Exception(
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"Invalid total: " + total + " " +
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"Expected value = " + valid + " " + op + ": Failed");
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}
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}
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}
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