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annotate unittests/ADT/IntEqClassesTest.cpp @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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children c2174574ed3a
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1 //===---- ADT/IntEqClassesTest.cpp - IntEqClasses unit tests ----*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #include "llvm/ADT/IntEqClasses.h"
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11 #include "gtest/gtest.h"
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12
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13 using namespace llvm;
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14
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15 namespace {
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16
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17 TEST(IntEqClasses, Simple) {
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18 IntEqClasses ec(10);
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19
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20 ec.join(0, 1);
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21 ec.join(3, 2);
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22 ec.join(4, 5);
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23 ec.join(7, 6);
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24
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25 EXPECT_EQ(0u, ec.findLeader(0));
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26 EXPECT_EQ(0u, ec.findLeader(1));
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27 EXPECT_EQ(2u, ec.findLeader(2));
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28 EXPECT_EQ(2u, ec.findLeader(3));
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29 EXPECT_EQ(4u, ec.findLeader(4));
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30 EXPECT_EQ(4u, ec.findLeader(5));
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31 EXPECT_EQ(6u, ec.findLeader(6));
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32 EXPECT_EQ(6u, ec.findLeader(7));
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33 EXPECT_EQ(8u, ec.findLeader(8));
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34 EXPECT_EQ(9u, ec.findLeader(9));
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35
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36 // join two non-leaders.
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37 ec.join(1, 3);
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38
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39 EXPECT_EQ(0u, ec.findLeader(0));
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40 EXPECT_EQ(0u, ec.findLeader(1));
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41 EXPECT_EQ(0u, ec.findLeader(2));
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42 EXPECT_EQ(0u, ec.findLeader(3));
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43 EXPECT_EQ(4u, ec.findLeader(4));
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44 EXPECT_EQ(4u, ec.findLeader(5));
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45 EXPECT_EQ(6u, ec.findLeader(6));
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46 EXPECT_EQ(6u, ec.findLeader(7));
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47 EXPECT_EQ(8u, ec.findLeader(8));
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48 EXPECT_EQ(9u, ec.findLeader(9));
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49
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50 // join two leaders.
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51 ec.join(4, 8);
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52
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53 EXPECT_EQ(0u, ec.findLeader(0));
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54 EXPECT_EQ(0u, ec.findLeader(1));
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55 EXPECT_EQ(0u, ec.findLeader(2));
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56 EXPECT_EQ(0u, ec.findLeader(3));
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57 EXPECT_EQ(4u, ec.findLeader(4));
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58 EXPECT_EQ(4u, ec.findLeader(5));
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59 EXPECT_EQ(6u, ec.findLeader(6));
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60 EXPECT_EQ(6u, ec.findLeader(7));
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61 EXPECT_EQ(4u, ec.findLeader(8));
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62 EXPECT_EQ(9u, ec.findLeader(9));
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63
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64 // join mixed.
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65 ec.join(9, 1);
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66
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67 EXPECT_EQ(0u, ec.findLeader(0));
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68 EXPECT_EQ(0u, ec.findLeader(1));
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69 EXPECT_EQ(0u, ec.findLeader(2));
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70 EXPECT_EQ(0u, ec.findLeader(3));
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71 EXPECT_EQ(4u, ec.findLeader(4));
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72 EXPECT_EQ(4u, ec.findLeader(5));
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73 EXPECT_EQ(6u, ec.findLeader(6));
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74 EXPECT_EQ(6u, ec.findLeader(7));
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75 EXPECT_EQ(4u, ec.findLeader(8));
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76 EXPECT_EQ(0u, ec.findLeader(9));
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77
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78 // compressed map.
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79 ec.compress();
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80 EXPECT_EQ(3u, ec.getNumClasses());
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81
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82 EXPECT_EQ(0u, ec[0]);
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83 EXPECT_EQ(0u, ec[1]);
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84 EXPECT_EQ(0u, ec[2]);
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85 EXPECT_EQ(0u, ec[3]);
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86 EXPECT_EQ(1u, ec[4]);
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87 EXPECT_EQ(1u, ec[5]);
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88 EXPECT_EQ(2u, ec[6]);
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89 EXPECT_EQ(2u, ec[7]);
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90 EXPECT_EQ(1u, ec[8]);
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91 EXPECT_EQ(0u, ec[9]);
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92
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93 // uncompressed map.
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94 ec.uncompress();
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95 EXPECT_EQ(0u, ec.findLeader(0));
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96 EXPECT_EQ(0u, ec.findLeader(1));
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97 EXPECT_EQ(0u, ec.findLeader(2));
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98 EXPECT_EQ(0u, ec.findLeader(3));
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99 EXPECT_EQ(4u, ec.findLeader(4));
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100 EXPECT_EQ(4u, ec.findLeader(5));
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101 EXPECT_EQ(6u, ec.findLeader(6));
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102 EXPECT_EQ(6u, ec.findLeader(7));
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103 EXPECT_EQ(4u, ec.findLeader(8));
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104 EXPECT_EQ(0u, ec.findLeader(9));
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105 }
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106
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107 } // end anonymous namespace