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1 /* |
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 /** |
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26 * @test |
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27 * @bug 8074981 |
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28 * @summary Add C2 x86 Superword support for scalar sum reduction optimizations : int test |
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29 * |
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30 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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31 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=2 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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32 * |
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33 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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34 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=4 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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35 * |
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36 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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37 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=8 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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38 * |
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39 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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40 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-SuperWordReductions -XX:LoopUnrollLimit=250 -XX:LoopMaxUnroll=16 -XX:CompileThresholdScaling=0.1 SumRed_Int |
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41 */ |
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42 |
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43 public class SumRed_Int |
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44 { |
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45 public static void main(String[] args) throws Exception { |
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46 int[] a = new int[256*1024]; |
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47 int[] b = new int[256*1024]; |
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48 int[] c = new int[256*1024]; |
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49 int[] d = new int[256*1024]; |
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50 sumReductionInit(a,b,c); |
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51 int total = 0; |
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52 int valid = 262144000; |
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53 for(int j = 0; j < 2000; j++) { |
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54 total = sumReductionImplement(a,b,c,d,total); |
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55 } |
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56 if(total == valid) { |
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57 System.out.println("Success"); |
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58 } else { |
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59 System.out.println("Invalid sum of elements variable in total: " + total); |
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60 System.out.println("Expected value = " + valid); |
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61 throw new Exception("Failed"); |
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62 } |
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63 } |
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64 |
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65 public static void sumReductionInit( |
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66 int[] a, |
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67 int[] b, |
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68 int[] c) |
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69 { |
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70 for(int j = 0; j < 1; j++) |
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71 { |
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72 for(int i = 0; i < a.length; i++) |
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73 { |
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74 a[i] = i * 1 + j; |
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75 b[i] = i * 1 - j; |
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76 c[i] = i + j; |
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77 } |
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78 } |
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79 } |
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80 |
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81 public static int sumReductionImplement( |
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82 int[] a, |
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83 int[] b, |
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84 int[] c, |
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85 int[] d, |
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86 int total) |
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87 { |
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88 for(int i = 0; i < a.length; i++) |
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89 { |
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90 d[i]= (a[i] * b[i]) + (a[i] * c[i]) + (b[i] * c[i]); |
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91 total += d[i]; |
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92 } |
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93 return total; |
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94 } |
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95 |
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96 } |