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1 /* |
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2 * Copyright 2010 Google, Inc. 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 6946040 |
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28 * @summary Tests Character/Short.reverseBytes and their intrinsics implementation in the server compiler |
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29 * |
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30 * @run main/othervm -Xbatch |
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31 * -XX:CompileCommand=compileonly,compiler.c2.TestCharShortByteSwap::testChar |
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32 * -XX:CompileCommand=compileonly,compiler.c2.TestCharShortByteSwap::testShort |
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33 * compiler.c2.TestCharShortByteSwap |
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34 */ |
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35 |
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36 package compiler.c2; |
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37 |
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38 // This test must run without any command line arguments. |
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39 |
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40 public class TestCharShortByteSwap { |
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41 |
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42 private static short initShort(String[] args, short v) { |
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43 if (args.length > 0) { |
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44 try { |
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45 return (short) Integer.valueOf(args[0]).intValue(); |
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46 } catch (NumberFormatException e) { } |
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47 } |
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48 return v; |
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49 } |
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50 |
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51 private static char initChar(String[] args, char v) { |
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52 if (args.length > 0) { |
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53 try { |
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54 return (char) Integer.valueOf(args[0]).intValue(); |
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55 } catch (NumberFormatException e) { } |
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56 } |
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57 return v; |
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58 } |
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59 |
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60 private static void testChar(char a, char b) { |
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61 if (a != Character.reverseBytes(b)) { |
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62 throw new RuntimeException("FAIL: " + (int)a + " != Character.reverseBytes(" + (int)b + ")"); |
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63 } |
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64 if (b != Character.reverseBytes(a)) { |
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65 throw new RuntimeException("FAIL: " + (int)b + " != Character.reverseBytes(" + (int)a + ")"); |
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66 } |
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67 } |
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68 |
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69 private static void testShort(short a, short b) { |
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70 if (a != Short.reverseBytes(b)) { |
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71 throw new RuntimeException("FAIL: " + (int)a + " != Short.reverseBytes(" + (int)b + ")"); |
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72 } |
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73 if (b != Short.reverseBytes(a)) { |
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74 throw new RuntimeException("FAIL: " + (int)b + " != Short.reverseBytes(" + (int)a + ")"); |
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75 } |
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76 } |
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77 |
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78 public static void main(String[] args) { |
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79 for (int i = 0; i < 100000; ++i) { // Trigger compilation |
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80 char c1 = initChar(args, (char) 0x0123); |
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81 char c2 = initChar(args, (char) 0x2301); |
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82 char c3 = initChar(args, (char) 0xaabb); |
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83 char c4 = initChar(args, (char) 0xbbaa); |
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84 short s1 = initShort(args, (short) 0x0123); |
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85 short s2 = initShort(args, (short) 0x2301); |
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86 short s3 = initShort(args, (short) 0xaabb); |
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87 short s4 = initShort(args, (short) 0xbbaa); |
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88 testChar(c1, c2); |
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89 testChar(c3, c4); |
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90 testShort(s1, s2); |
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91 testShort(s3, s4); |
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92 } |
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93 } |
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94 } |