--- /dev/null 2015-03-30 19:43:04.000000000 -0700 +++ new/test/compiler/loopopts/superword/ProdRed_Int.java 2015-03-30 19:43:04.000000000 -0700 @@ -0,0 +1,81 @@ +/* + * 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 product reduction optimizations : int test + * + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 ProdRed_Int + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 ProdRed_Int + * + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 ProdRed_Int + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 ProdRed_Int + * + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 ProdRed_Int + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 ProdRed_Int + * + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 ProdRed_Int + * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 ProdRed_Int + */ + +public class ProdRed_Int +{ + public static void main(String[] args) throws Exception { + int[] a = new int[256*1024]; + int[] b = new int[256*1024]; + prodReductionInit(a,b); + int valid = -100663295; + int total = 1; + for(int j = 0; j < 20000; j++) { + total = prodReductionImplement(a,b,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 prodReductionInit(int[] a, int[] b) + { + for(int i = 0; i < a.length; i++) + { + a[i] = i + 2; + b[i] = i + 1; + } + } + + public static int prodReductionImplement(int[] a, int[] b, int total) + { + for(int i = 0; i < a.length; i++) + { + total *= a[i] + b[i]; + } + return total; + } + +}