1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 /** 26 * @test 27 * @bug 8138583 28 * @summary Add C2 AArch64 Superword support for scalar sum reduction optimizations : float abs & neg test 29 * @requires os.arch=="aarch64" 30 * 31 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 32 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 33 * 34 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 35 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 36 * 37 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 38 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 39 * 40 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 41 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 -XX:CompileThresholdScaling=0.1 SumRedAbsNeg_Float 42 */ 43 44 public class SumRedAbsNeg_Float 45 { 46 public static void main(String[] args) throws Exception { 47 float[] a = new float[256*1024]; 48 float[] b = new float[256*1024]; 49 float[] c = new float[256*1024]; 50 float[] d = new float[256*1024]; 51 sumReductionInit(a,b,c); 52 float total = 0; 53 float valid = (float)4.611686E18; 54 55 for(int j = 0; j < 2000; j++) { 56 total = sumReductionImplement(a,b,c,d,total); 57 } 58 59 if(total == valid) { 60 System.out.println("Success"); 61 } else { 62 System.out.println("Invalid sum of elements variable in total: " + total); 63 System.out.println("Expected value = " + valid); 64 throw new Exception("Failed"); 65 } 66 } 67 68 public static void sumReductionInit( 69 float[] a, 70 float[] b, 71 float[] c) 72 { 73 for(int j = 0; j < 1; j++) 74 { 75 for(int i = 0; i < a.length; i++) 76 { 77 a[i] = i * 1 + j; 78 b[i] = i * 1 - j; 79 c[i] = i + j; 80 } 81 } 82 } 83 84 public static float sumReductionImplement( 85 float[] a, 86 float[] b, 87 float[] c, 88 float[] d, 89 float total) 90 { 91 for(int i = 0; i < a.length; i++) 92 { 93 d[i] = Math.abs(-a[i] * -b[i]) + Math.abs(-a[i] * -c[i]) + Math.abs(-b[i] * -c[i]); 94 total += d[i]; 95 } 96 return total; 97 } 98 99 }