| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 8074981 |
| * @summary Add C2 x86 Superword support for scalar sum reduction optimizations : double test |
| * @requires os.arch=="x86" | os.arch=="i386" | os.arch=="amd64" | os.arch=="x86_64" | os.arch=="aarch64" |
| * |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:+SuperWordReductions |
| * -XX:LoopMaxUnroll=2 |
| * compiler.loopopts.superword.SumRed_Double |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:-SuperWordReductions |
| * -XX:LoopMaxUnroll=2 |
| * compiler.loopopts.superword.SumRed_Double |
| * |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:+SuperWordReductions |
| * -XX:LoopMaxUnroll=4 |
| * compiler.loopopts.superword.SumRed_Double |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:-SuperWordReductions |
| * -XX:LoopMaxUnroll=4 |
| * compiler.loopopts.superword.SumRed_Double |
| * |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:+SuperWordReductions |
| * -XX:LoopMaxUnroll=8 |
| * compiler.loopopts.superword.SumRed_Double |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:-SuperWordReductions |
| * -XX:LoopMaxUnroll=8 |
| * compiler.loopopts.superword.SumRed_Double |
| * |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:+SuperWordReductions |
| * -XX:LoopMaxUnroll=16 |
| * compiler.loopopts.superword.SumRed_Double |
| * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250 |
| * -XX:CompileThresholdScaling=0.1 |
| * -XX:-SuperWordReductions |
| * -XX:LoopMaxUnroll=16 |
| * compiler.loopopts.superword.SumRed_Double |
| */ |
| |
| package compiler.loopopts.superword; |
| |
| public class SumRed_Double { |
| public static void main(String[] args) throws Exception { |
| double[] a = new double[256 * 1024]; |
| double[] b = new double[256 * 1024]; |
| double[] c = new double[256 * 1024]; |
| double[] d = new double[256 * 1024]; |
| sumReductionInit(a, b, c); |
| double total = 0; |
| double valid = 3.6028590866691944E19; |
| for (int j = 0; j < 2000; j++) { |
| total = sumReductionImplement(a, b, c, d, total); |
| } |
| if (total == valid) { |
| System.out.println("Success"); |
| } else { |
| System.out.println("Invalid sum of elements variable in total: " + total); |
| System.out.println("Expected value = " + valid); |
| throw new Exception("Failed"); |
| } |
| } |
| |
| public static void sumReductionInit( |
| double[] a, |
| double[] b, |
| double[] c) { |
| for (int j = 0; j < 1; j++) { |
| for (int i = 0; i < a.length; i++) { |
| a[i] = i * 1 + j; |
| b[i] = i * 1 - j; |
| c[i] = i + j; |
| } |
| } |
| } |
| |
| public static double sumReductionImplement( |
| double[] a, |
| double[] b, |
| double[] c, |
| double[] d, |
| double total) { |
| for (int i = 0; i < a.length; i++) { |
| d[i] = (a[i] * b[i]) + (a[i] * c[i]) + (b[i] * c[i]); |
| total += d[i]; |
| } |
| return total; |
| } |
| |
| } |