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annotate test/compiler/8005419/Test8005419.java @ 17467:55fb97c4c58d hs25-b65

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8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013 Summary: Copyright year updated for files modified during 2013 Reviewed-by: twisti, iveresov
author mikael
date Tue, 24 Dec 2013 11:48:39 -0800
parents 038dd2875b94
children 4ca6dc0799b6
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1 /*
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2 * Copyright (c) 2012, 2013, 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 * @test
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26 * @bug 8005419
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27 * @summary Improve intrinsics code performance on x86 by using AVX2
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28 * @run main/othervm -Xbatch -Xmx64m Test8005419
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29 *
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30 */
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31
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32 public class Test8005419 {
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33 public static int SIZE = 64;
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34
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35 public static void main(String[] args) {
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36 char[] a = new char[SIZE];
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37 char[] b = new char[SIZE];
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38
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39 for (int i = 16; i < SIZE; i++) {
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40 a[i] = (char)i;
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41 b[i] = (char)i;
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42 }
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43 String s1 = new String(a);
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44 String s2 = new String(b);
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45
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46 // Warm up
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47 boolean failed = false;
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48 int result = 0;
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49 for (int i = 0; i < 10000; i++) {
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50 result += test(s1, s2);
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51 }
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52 for (int i = 0; i < 10000; i++) {
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53 result += test(s1, s2);
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54 }
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55 for (int i = 0; i < 10000; i++) {
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56 result += test(s1, s2);
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57 }
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58 if (result != 0) failed = true;
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59
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60 System.out.println("Start testing");
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61 // Compare same string
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62 result = test(s1, s1);
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63 if (result != 0) {
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64 failed = true;
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65 System.out.println("Failed same: result = " + result + ", expected 0");
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66 }
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67 // Compare equal strings
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68 for (int i = 1; i <= SIZE; i++) {
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69 s1 = new String(a, 0, i);
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70 s2 = new String(b, 0, i);
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71 result = test(s1, s2);
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72 if (result != 0) {
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73 failed = true;
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74 System.out.println("Failed equals s1[" + i + "], s2[" + i + "]: result = " + result + ", expected 0");
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75 }
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76 }
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77 // Compare equal strings but different sizes
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78 for (int i = 1; i <= SIZE; i++) {
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79 s1 = new String(a, 0, i);
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80 for (int j = 1; j <= SIZE; j++) {
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81 s2 = new String(b, 0, j);
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82 result = test(s1, s2);
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83 if (result != (i-j)) {
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84 failed = true;
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85 System.out.println("Failed diff size s1[" + i + "], s2[" + j + "]: result = " + result + ", expected " + (i-j));
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86 }
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87 }
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88 }
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89 // Compare strings with one char different and different sizes
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90 for (int i = 1; i <= SIZE; i++) {
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91 s1 = new String(a, 0, i);
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92 for (int j = 0; j < i; j++) {
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93 b[j] -= 3; // change char
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94 s2 = new String(b, 0, i);
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95 result = test(s1, s2);
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96 int chdiff = a[j] - b[j];
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97 if (result != chdiff) {
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98 failed = true;
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99 System.out.println("Failed diff char s1[" + i + "], s2[" + i + "]: result = " + result + ", expected " + chdiff);
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100 }
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101 result = test(s2, s1);
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102 chdiff = b[j] - a[j];
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103 if (result != chdiff) {
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104 failed = true;
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105 System.out.println("Failed diff char s2[" + i + "], s1[" + i + "]: result = " + result + ", expected " + chdiff);
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106 }
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107 b[j] += 3; // restore
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108 }
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109 }
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110 if (failed) {
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111 System.out.println("FAILED");
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112 System.exit(97);
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113 }
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114 System.out.println("PASSED");
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115 }
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116
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117 private static int test(String str1, String str2) {
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118 return str1.compareTo(str2);
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119 }
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120 }