clang/test/CodeGenCXX/vtable-layout-extreme.cpp

   1 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm-only -fdump-vtable-layouts 2>&1 | FileCheck %s
   2
   3 // A collection of big class hierarchies and their vtables.
   4
   5 namespace Test1 {
   6
   7 class C0
   8 {
   9 };
  10 class C1
  11  :  virtual public C0
  12 {
  13   int k0;
  14 };
  15 class C2
  16  :  public C0
  17  ,  virtual public C1
  18 {
  19   int k0;
  20 };
  21 class C3
  22  :  virtual public C0
  23  ,  virtual public C1
  24  ,  public C2
  25 {
  26   int k0;
  27   int k1;
  28   int k2;
  29   int k3;
  30 };
  31 class C4
  32  :  public C2
  33  ,  virtual public C3
  34  ,  public C0
  35 {
  36   int k0;
  37 };
  38 class C5
  39  :  public C0
  40  ,  virtual public C4
  41  ,  public C2
  42  ,  public C1
  43  ,  virtual public C3
  44 {
  45   int k0;
  46 };
  47 class C6
  48  :  virtual public C3
  49  ,  public C0
  50  ,  public C5
  51  ,  public C4
  52  ,  public C1
  53 {
  54   int k0;
  55 };
  56 class C7
  57  :  virtual public C5
  58  ,  virtual public C6
  59  ,  virtual public C3
  60  ,  public C4
  61  ,  virtual public C2
  62 {
  63   int k0;
  64   int k1;
  65 };
  66 class C8
  67  :  public C7
  68  ,  public C5
  69  ,  public C3
  70  ,  virtual public C4
  71  ,  public C1
  72  ,  public C2
  73 {
  74   int k0;
  75   int k1;
  76 };
  77
  78 // CHECK:     Vtable for 'Test1::C9' (87 entries).
  79 // CHECK-NEXT:   0 | vbase_offset (344)
  80 // CHECK-NEXT:   1 | vbase_offset (312)
  81 // CHECK-NEXT:   2 | vbase_offset (184)
  82 // CHECK-NEXT:   3 | vbase_offset (168)
  83 // CHECK-NEXT:   4 | vbase_offset (120)
  84 // CHECK-NEXT:   5 | vbase_offset (48)
  85 // CHECK-NEXT:   6 | vbase_offset (148)
  86 // CHECK-NEXT:   7 | vbase_offset (152)
  87 // CHECK-NEXT:   8 | offset_to_top (0)
  88 // CHECK-NEXT:   9 | Test1::C9 RTTI
  89 // CHECK-NEXT:       -- (Test1::C2, 0) vtable address --
  90 // CHECK-NEXT:       -- (Test1::C9, 0) vtable address --
  91 // CHECK-NEXT:  10 | void Test1::C9::f()
  92 // CHECK-NEXT:  11 | vbase_offset (104)
  93 // CHECK-NEXT:  12 | vbase_offset (132)
  94 // CHECK-NEXT:  13 | vbase_offset (136)
  95 // CHECK-NEXT:  14 | offset_to_top (-16)
  96 // CHECK-NEXT:  15 | Test1::C9 RTTI
  97 // CHECK-NEXT:       -- (Test1::C2, 16) vtable address --
  98 // CHECK-NEXT:       -- (Test1::C4, 16) vtable address --
  99 // CHECK-NEXT:  16 | vbase_offset (72)
 100 // CHECK-NEXT:  17 | vbase_offset (120)
 101 // CHECK-NEXT:  18 | vbase_offset (100)
 102 // CHECK-NEXT:  19 | vbase_offset (104)
 103 // CHECK-NEXT:  20 | offset_to_top (-48)
 104 // CHECK-NEXT:  21 | Test1::C9 RTTI
 105 // CHECK-NEXT:       -- (Test1::C2, 48) vtable address --
 106 // CHECK-NEXT:       -- (Test1::C5, 48) vtable address --
 107 // CHECK-NEXT:       -- (Test1::C6, 48) vtable address --
 108 // CHECK-NEXT:  22 | vbase_offset (84)
 109 // CHECK-NEXT:  23 | offset_to_top (-64)
 110 // CHECK-NEXT:  24 | Test1::C9 RTTI
 111 // CHECK-NEXT:       -- (Test1::C1, 64) vtable address --
 112 // CHECK-NEXT:  25 | vbase_offset (32)
 113 // CHECK-NEXT:  26 | vbase_offset (60)
 114 // CHECK-NEXT:  27 | vbase_offset (64)
 115 // CHECK-NEXT:  28 | offset_to_top (-88)
 116 // CHECK-NEXT:  29 | Test1::C9 RTTI
 117 // CHECK-NEXT:       -- (Test1::C2, 88) vtable address --
 118 // CHECK-NEXT:       -- (Test1::C4, 88) vtable address --
 119 // CHECK-NEXT:  30 | vbase_offset (44)
 120 // CHECK-NEXT:  31 | offset_to_top (-104)
 121 // CHECK-NEXT:  32 | Test1::C9 RTTI
 122 // CHECK-NEXT:       -- (Test1::C1, 104) vtable address --
 123 // CHECK-NEXT:  33 | vbase_offset (28)
 124 // CHECK-NEXT:  34 | vbase_offset (32)
 125 // CHECK-NEXT:  35 | offset_to_top (-120)
 126 // CHECK-NEXT:  36 | Test1::C9 RTTI
 127 // CHECK-NEXT:       -- (Test1::C2, 120) vtable address --
 128 // CHECK-NEXT:       -- (Test1::C3, 120) vtable address --
 129 // CHECK-NEXT:  37 | vbase_offset (-4)
 130 // CHECK-NEXT:  38 | offset_to_top (-152)
 131 // CHECK-NEXT:  39 | Test1::C9 RTTI
 132 // CHECK-NEXT:       -- (Test1::C1, 152) vtable address --
 133 // CHECK-NEXT:  40 | vbase_offset (-48)
 134 // CHECK-NEXT:  41 | vbase_offset (-20)
 135 // CHECK-NEXT:  42 | vbase_offset (-16)
 136 // CHECK-NEXT:  43 | offset_to_top (-168)
 137 // CHECK-NEXT:  44 | Test1::C9 RTTI
 138 // CHECK-NEXT:       -- (Test1::C2, 168) vtable address --
 139 // CHECK-NEXT:       -- (Test1::C4, 168) vtable address --
 140 // CHECK-NEXT:  45 | vbase_offset (160)
 141 // CHECK-NEXT:  46 | vbase_offset (-136)
 142 // CHECK-NEXT:  47 | vbase_offset (-16)
 143 // CHECK-NEXT:  48 | vbase_offset (128)
 144 // CHECK-NEXT:  49 | vbase_offset (-64)
 145 // CHECK-NEXT:  50 | vbase_offset (-36)
 146 // CHECK-NEXT:  51 | vbase_offset (-32)
 147 // CHECK-NEXT:  52 | offset_to_top (-184)
 148 // CHECK-NEXT:  53 | Test1::C9 RTTI
 149 // CHECK-NEXT:       -- (Test1::C2, 184) vtable address --
 150 // CHECK-NEXT:       -- (Test1::C4, 184) vtable address --
 151 // CHECK-NEXT:       -- (Test1::C7, 184) vtable address --
 152 // CHECK-NEXT:       -- (Test1::C8, 184) vtable address --
 153 // CHECK-NEXT:  54 | vbase_offset (-88)
 154 // CHECK-NEXT:  55 | vbase_offset (-40)
 155 // CHECK-NEXT:  56 | vbase_offset (-60)
 156 // CHECK-NEXT:  57 | vbase_offset (-56)
 157 // CHECK-NEXT:  58 | offset_to_top (-208)
 158 // CHECK-NEXT:  59 | Test1::C9 RTTI
 159 // CHECK-NEXT:       -- (Test1::C2, 208) vtable address --
 160 // CHECK-NEXT:       -- (Test1::C5, 208) vtable address --
 161 // CHECK-NEXT:  60 | vbase_offset (-76)
 162 // CHECK-NEXT:  61 | offset_to_top (-224)
 163 // CHECK-NEXT:  62 | Test1::C9 RTTI
 164 // CHECK-NEXT:       -- (Test1::C1, 224) vtable address --
 165 // CHECK-NEXT:  63 | vbase_offset (-92)
 166 // CHECK-NEXT:  64 | vbase_offset (-88)
 167 // CHECK-NEXT:  65 | offset_to_top (-240)
 168 // CHECK-NEXT:  66 | Test1::C9 RTTI
 169 // CHECK-NEXT:       -- (Test1::C2, 240) vtable address --
 170 // CHECK-NEXT:       -- (Test1::C3, 240) vtable address --
 171 // CHECK-NEXT:  67 | vbase_offset (-124)
 172 // CHECK-NEXT:  68 | offset_to_top (-272)
 173 // CHECK-NEXT:  69 | Test1::C9 RTTI
 174 // CHECK-NEXT:       -- (Test1::C1, 272) vtable address --
 175 // CHECK-NEXT:  70 | vbase_offset (-140)
 176 // CHECK-NEXT:  71 | vbase_offset (-136)
 177 // CHECK-NEXT:  72 | offset_to_top (-288)
 178 // CHECK-NEXT:  73 | Test1::C9 RTTI
 179 // CHECK-NEXT:       -- (Test1::C2, 288) vtable address --
 180 // CHECK-NEXT:  74 | vbase_offset (-192)
 181 // CHECK-NEXT:  75 | vbase_offset (-144)
 182 // CHECK-NEXT:  76 | vbase_offset (-164)
 183 // CHECK-NEXT:  77 | vbase_offset (-160)
 184 // CHECK-NEXT:  78 | offset_to_top (-312)
 185 // CHECK-NEXT:  79 | Test1::C9 RTTI
 186 // CHECK-NEXT:       -- (Test1::C2, 312) vtable address --
 187 // CHECK-NEXT:       -- (Test1::C5, 312) vtable address --
 188 // CHECK-NEXT:  80 | vbase_offset (-180)
 189 // CHECK-NEXT:  81 | offset_to_top (-328)
 190 // CHECK-NEXT:  82 | Test1::C9 RTTI
 191 // CHECK-NEXT:       -- (Test1::C1, 328) vtable address --
 192 // CHECK-NEXT:  83 | vbase_offset (-196)
 193 // CHECK-NEXT:  84 | vbase_offset (-192)
 194 // CHECK-NEXT:  85 | offset_to_top (-344)
 195 // CHECK-NEXT:  86 | Test1::C9 RTTI
 196 class C9
 197  :  virtual public C6
 198  ,  public C2
 199  ,  public C4
 200  ,  virtual public C8
 201 {
 202   int k0;
 203   int k1;
 204   int k2;
 205   int k3;
 206   virtual void f();
 207 };
 208 void C9::f() { }
 209
 210 }