Mercurial > hg > truffle
annotate test/compiler/6800154/Test6800154.java @ 3237:399aa66d375e
Fixed a bug in which the valueEquals method was misused. The method does only check the equality of the node data and not full GVN equality by taking inputs and successors into account.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Jul 2011 14:16:38 -0700 |
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1 /* |
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2 * Copyright (c) 2009, 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 6800154 |
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27 * @summary Add comments to long_by_long_mulhi() for better understandability |
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28 * |
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29 * @run main/othervm -Xcomp -XX:CompileOnly=Test6800154.divcomp Test6800154 |
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30 */ |
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31 |
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32 import java.net.URLClassLoader; |
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33 |
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34 public class Test6800154 implements Runnable { |
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35 static final long[] DIVIDENDS = { |
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36 0, |
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37 1, |
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38 2, |
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39 1423487, |
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40 4444441, |
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41 4918923241323L, |
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42 -1, |
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43 -24351, |
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44 0x3333, |
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45 0x0000000080000000L, |
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46 0x7fffffffffffffffL, |
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47 0x8000000000000000L |
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48 }; |
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49 |
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50 static final long[] DIVISORS = { |
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51 1, |
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52 2, |
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53 17, |
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54 12342, |
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55 24123, |
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56 143444, |
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57 123444442344L, |
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58 -1, |
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59 -2, |
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60 -4423423234231423L, |
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61 0x0000000080000000L, |
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62 0x7fffffffffffffffL, |
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63 0x8000000000000000L |
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64 }; |
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65 |
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66 // Initialize DIVISOR so that it is final in this class. |
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67 static final long DIVISOR; |
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68 |
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69 static { |
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70 long value = 0; |
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71 try { |
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72 value = Long.decode(System.getProperty("divisor")); |
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73 } catch (Throwable e) { |
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74 } |
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75 DIVISOR = value; |
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76 } |
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77 |
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78 public static void main(String[] args) throws Exception |
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79 { |
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80 Class cl = Class.forName("Test6800154"); |
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81 URLClassLoader apploader = (URLClassLoader) cl.getClassLoader(); |
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82 |
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83 // Iterate over all divisors. |
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84 for (int i = 0; i < DIVISORS.length; i++) { |
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85 System.setProperty("divisor", "" + DIVISORS[i]); |
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86 ClassLoader loader = new URLClassLoader(apploader.getURLs(), apploader.getParent()); |
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87 Class c = loader.loadClass("Test6800154"); |
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88 Runnable r = (Runnable) c.newInstance(); |
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89 r.run(); |
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90 } |
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91 } |
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92 |
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93 public void run() |
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94 { |
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95 // Iterate over all dividends. |
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96 for (int i = 0; i < DIVIDENDS.length; i++) { |
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97 long dividend = DIVIDENDS[i]; |
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98 |
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99 long expected = divint(dividend); |
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100 long result = divcomp(dividend); |
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101 |
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102 if (result != expected) |
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103 throw new InternalError(dividend + " / " + DIVISOR + " failed: " + result + " != " + expected); |
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104 } |
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105 } |
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106 |
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107 static long divint(long a) { return a / DIVISOR; } |
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108 static long divcomp(long a) { return a / DIVISOR; } |
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109 } |