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1 // RUN: %clang_cc1 -emit-llvm-only -triple i686-pc-win32 -fdump-record-layouts %s 2>/dev/null \
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2 // RUN: | FileCheck %s
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3
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4 #pragma pack(push, 8)
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5
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6 class B {
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7 public:
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8 virtual void b(){}
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9 int b_field;
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10 protected:
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11 private:
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12 };
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13
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14 class A : public B {
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15 public:
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16 int a_field;
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17 virtual void a(){}
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18 char one;
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19 protected:
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20 private:
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21 };
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22
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23 class D {
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24 public:
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25 virtual void b(){}
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26 double a;
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27 };
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28
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29 class C : public virtual A,
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30 public D, public B {
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31 public:
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32 double c1_field;
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33 int c2_field;
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34 double c3_field;
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35 int c4_field;
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36 virtual void foo(){}
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37 virtual void bar(){}
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38 protected:
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39 private:
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40 };
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41
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42 struct BaseStruct
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43 {
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44 BaseStruct(){}
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45 double v0;
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46 float v1;
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47 C fg;
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48 };
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49
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50 struct DerivedStruct : public BaseStruct {
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51 int x;
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52 };
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53
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54 struct G
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55 {
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56 int g_field;
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57 };
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58
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59 struct H : public G,
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60 public virtual D
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61 {
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62 };
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63
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64 struct I : public virtual D
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65 {
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66 virtual ~I(){}
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67 double q;
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68 };
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69
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70 struct K
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71 {
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72 int k;
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73 };
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74
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75 struct L
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76 {
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77 int l;
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78 };
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79
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80 struct M : public virtual K
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81 {
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82 int m;
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83 };
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84
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85 struct N : public L, public M
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86 {
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87 virtual void f(){}
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88 };
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89
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90 struct O : public H, public G {
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91 virtual void fo(){}
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92 };
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93
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94 struct P : public M, public virtual L {
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95 int p;
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96 };
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97
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98 struct R {};
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99
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100 class IA {
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101 public:
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102 virtual ~IA(){}
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103 virtual void ia() = 0;
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104 };
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105
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106 class ICh : public virtual IA {
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107 public:
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108 virtual ~ICh(){}
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109 virtual void ia(){}
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110 virtual void iCh(){}
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111 };
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112
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113 struct f {
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114 virtual int asd() {return -90;}
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115 };
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116
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117 struct s : public virtual f {
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118 virtual ~s(){}
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119 int r;
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120 virtual int asd() {return -9;}
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121 };
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122
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123 struct sd : virtual s, virtual ICh {
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124 virtual ~sd(){}
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125 int q;
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126 char y;
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127 virtual int asd() {return -1;}
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128 };
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129 struct AV {
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130 virtual void foo();
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131 };
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132 struct BV : AV {
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133 };
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134 struct CV : virtual BV {
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135 CV();
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136 virtual void foo();
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137 };
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138 struct DV : BV {
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139 };
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140 struct EV : CV, DV {
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141 };
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142 #pragma pack(pop)
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143
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144 // This needs only for building layouts.
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145 // Without this clang doesn`t dump record layouts.
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146 int main() {
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147 // This avoid "Can't yet mangle constructors!" for MS ABI.
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148 C* c;
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149 c->foo();
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150 DerivedStruct* v;
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151 H* g;
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152 BaseStruct* u;
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153 I* i;
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154 N* n;
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155 O* o;
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156 P* p;
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157 R* r;
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158 sd *h;
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159 EV *j;
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160 return 0;
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161 }
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162
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163 // CHECK: 0 | class D
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164 // CHECK-NEXT: 0 | (D vftable pointer)
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165 // CHECK-NEXT: 8 | double a
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166
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167 // CHECK-NEXT: sizeof=16, align=8
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168 // CHECK-NEXT: nvsize=16, nvalign=8
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169
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170 // CHECK: %class.D = type { i32 (...)**, double }
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171
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172 // CHECK: 0 | class B
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173 // CHECK-NEXT: 0 | (B vftable pointer)
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174 // CHECK-NEXT: 4 | int b_field
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175
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176 // CHECK-NEXT: sizeof=8, align=4
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177 // CHECK-NEXT: nvsize=8, nvalign=4
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178
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179 // CHECK: %class.B = type { i32 (...)**, i32 }
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180
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181 // CHECK: 0 | class A
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182 // CHECK-NEXT: 0 | class B (primary base)
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183 // CHECK-NEXT: 0 | (B vftable pointer)
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184 // CHECK-NEXT: 4 | int b_field
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185 // CHECK-NEXT: 8 | int a_field
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186 // CHECK-NEXT: 12 | char one
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187
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188 // CHECK-NEXT: sizeof=16, align=4
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189 // CHECK-NEXT: nvsize=16, nvalign=4
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190
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191 // CHECK: 0 | class C
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192 // CHECK-NEXT: 0 | class D (primary base)
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193 // CHECK-NEXT: 0 | (D vftable pointer)
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194 // CHECK-NEXT: 8 | double a
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195 // CHECK-NEXT: 16 | class B (base)
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196 // CHECK-NEXT: 16 | (B vftable pointer)
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197 // CHECK-NEXT: 20 | int b_field
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198 // CHECK-NEXT: 24 | (C vbtable pointer)
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199 // CHECK-NEXT: 32 | double c1_field
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200 // CHECK-NEXT: 40 | int c2_field
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201 // CHECK-NEXT: 48 | double c3_field
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202 // CHECK-NEXT: 56 | int c4_field
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203 // CHECK-NEXT: 64 | class A (virtual base)
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204 // CHECK-NEXT: 64 | class B (primary base)
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205 // CHECK-NEXT: 64 | (B vftable pointer)
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206 // CHECK-NEXT: 68 | int b_field
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207 // CHECK-NEXT: 72 | int a_field
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208 // CHECK-NEXT: 76 | char one
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209
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210 // CHECK-NEXT: sizeof=80, align=8
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211 // CHECK-NEXT: nvsize=64, nvalign=8
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212
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213 // CHECK: %class.A = type { %class.B, i32, i8 }
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214
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215 // CHECK: %class.C = type { %class.D, %class.B, i32*, double, i32, double, i32, [4 x i8], %class.A }
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216 // CHECK: %class.C.base = type { %class.D, %class.B, i32*, double, i32, double, i32 }
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217
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218 // CHECK: 0 | struct BaseStruct
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219 // CHECK-NEXT: 0 | double v0
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220 // CHECK-NEXT: 8 | float v1
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221 // CHECK-NEXT: 16 | class C fg
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222 // CHECK-NEXT: 16 | class D (primary base)
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223 // CHECK-NEXT: 16 | (D vftable pointer)
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224 // CHECK-NEXT: 24 | double a
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225 // CHECK-NEXT: 32 | class B (base)
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226 // CHECK-NEXT: 32 | (B vftable pointer)
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227 // CHECK-NEXT: 36 | int b_field
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228 // CHECK-NEXT: 40 | (C vbtable pointer)
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229 // CHECK-NEXT: 48 | double c1_field
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230 // CHECK-NEXT: 56 | int c2_field
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231 // CHECK-NEXT: 64 | double c3_field
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232 // CHECK-NEXT: 72 | int c4_field
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233 // CHECK-NEXT: 80 | class A (virtual base)
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234 // CHECK-NEXT: 80 | class B (primary base)
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235 // CHECK-NEXT: 80 | (B vftable pointer)
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236 // CHECK-NEXT: 84 | int b_field
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237 // CHECK-NEXT: 88 | int a_field
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238 // CHECK-NEXT: 92 | char one
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239 // CHECK-NEXT: sizeof=96, align=8
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240 // CHECK-NEXT: nvsize=96, nvalign=8
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241
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242 // CHECK: %struct.BaseStruct = type { double, float, %class.C }
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243
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244 // CHECK: 0 | struct DerivedStruct
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245 // CHECK-NEXT: 0 | struct BaseStruct (base)
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246 // CHECK-NEXT: 0 | double v0
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247 // CHECK-NEXT: 8 | float v1
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248 // CHECK-NEXT: 16 | class C fg
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249 // CHECK-NEXT: 16 | class D (primary base)
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250 // CHECK-NEXT: 16 | (D vftable pointer)
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251 // CHECK-NEXT: 24 | double a
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252 // CHECK-NEXT: 32 | class B (base)
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253 // CHECK-NEXT: 32 | (B vftable pointer)
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254 // CHECK-NEXT: 36 | int b_field
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255 // CHECK-NEXT: 40 | (C vbtable pointer)
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256 // CHECK-NEXT: 48 | double c1_field
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257 // CHECK-NEXT: 56 | int c2_field
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258 // CHECK-NEXT: 64 | double c3_field
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259 // CHECK-NEXT: 72 | int c4_field
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260 // CHECK-NEXT: 80 | class A (virtual base)
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261 // CHECK-NEXT: 80 | class B (primary base)
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262 // CHECK-NEXT: 80 | (B vftable pointer)
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263 // CHECK-NEXT: 84 | int b_field
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264 // CHECK-NEXT: 88 | int a_field
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265 // CHECK-NEXT: 92 | char one
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266 // CHECK-NEXT: 96 | int x
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267 // CHECK-NEXT: sizeof=104, align=8
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268 // CHECK-NEXT: nvsize=104, nvalign=8
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269
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270 // CHECK: %struct.DerivedStruct = type { %struct.BaseStruct, i32 }
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271
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272 // CHECK: 0 | struct G
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273 // CHECK-NEXT: 0 | int g_field
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274 // CHECK-NEXT: sizeof=4, align=4
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275 // CHECK-NEXT: nvsize=4, nvalign=4
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276
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277 // CHECK: 0 | struct H
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278 // CHECK-NEXT: 0 | struct G (base)
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279 // CHECK-NEXT: 0 | int g_field
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280 // CHECK-NEXT: 4 | (H vbtable pointer)
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281 // CHECK-NEXT: 8 | class D (virtual base)
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282 // CHECK-NEXT: 8 | (D vftable pointer)
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283 // CHECK-NEXT: 16 | double a
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284 // CHECK-NEXT: sizeof=24, align=8
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285 // CHECK-NEXT: nvsize=8, nvalign=8
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286
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287 // CHECK: %struct.H = type { %struct.G, i32*, %class.D }
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288
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289 // CHECK: 0 | struct I
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290 // CHECK-NEXT: 0 | (I vftable pointer)
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291 // CHECK-NEXT: 8 | (I vbtable pointer)
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292 // CHECK-NEXT: 16 | double q
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293 // CHECK-NEXT: 24 | class D (virtual base)
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294 // CHECK-NEXT: 24 | (D vftable pointer)
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295 // CHECK-NEXT: 32 | double a
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296 // CHECK-NEXT: sizeof=40, align=8
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297 // CHECK-NEXT: nvsize=24, nvalign=8
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298
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299 // CHECK: %struct.I = type { i32 (...)**, [4 x i8], i32*, double, %class.D }
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300 // CHECK: %struct.I.base = type { i32 (...)**, [4 x i8], i32*, double }
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301
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302 // CHECK: 0 | struct L
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303 // CHECK-NEXT: 0 | int l
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304 // CHECK-NEXT: sizeof=4, align=4
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305 // CHECK-NEXT: nvsize=4, nvalign=4
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306
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307 // CHECK: 0 | struct K
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308 // CHECK-NEXT: 0 | int k
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309 // CHECK-NEXT: sizeof=4, align=4
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310 // CHECK-NEXT: nvsize=4, nvalign=4
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311
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312 // CHECK: 0 | struct M
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313 // CHECK-NEXT: 0 | (M vbtable pointer)
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314 // CHECK-NEXT: 4 | int m
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315 // CHECK-NEXT: 8 | struct K (virtual base)
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316 // CHECK-NEXT: 8 | int k
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317 // CHECK-NEXT: sizeof=12, align=4
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318
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319 //CHECK: %struct.M = type { i32*, i32, %struct.K }
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320 //CHECK: %struct.M.base = type { i32*, i32 }
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321
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322 // CHECK: 0 | struct N
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323 // CHECK-NEXT: 0 | (N vftable pointer)
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324 // CHECK-NEXT: 4 | struct L (base)
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325 // CHECK-NEXT: 4 | int l
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326 // CHECK-NEXT: 8 | struct M (base)
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327 // CHECK-NEXT: 8 | (M vbtable pointer)
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328 // CHECK-NEXT: 12 | int m
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329 // CHECK-NEXT: 16 | struct K (virtual base)
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330 // CHECK-NEXT: 16 | int k
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331 // CHECK-NEXT: sizeof=20, align=4
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332 // CHECK-NEXT: nvsize=16, nvalign=4
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333
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334 //CHECK: %struct.N = type { i32 (...)**, %struct.L, %struct.M.base, %struct.K }
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335
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336 // CHECK: 0 | struct O
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337 // CHECK-NEXT: 0 | (O vftable pointer)
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338 // CHECK-NEXT: 8 | struct H (base)
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339 // CHECK-NEXT: 8 | struct G (base)
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340 // CHECK-NEXT: 8 | int g_field
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341 // CHECK-NEXT: 12 | (H vbtable pointer)
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342 // CHECK-NEXT: 16 | struct G (base)
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343 // CHECK-NEXT: 16 | int g_field
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344 // CHECK-NEXT: 24 | class D (virtual base)
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345 // CHECK-NEXT: 24 | (D vftable pointer)
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346 // CHECK-NEXT: 32 | double a
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347 // CHECK-NEXT: | [sizeof=40, align=8
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348 // CHECK-NEXT: | nvsize=24, nvalign=8]
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349
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350 // CHECK: struct.O = type { i32 (...)**, [4 x i8], %struct.H.base, %struct.G, %class.D }
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351 // CHECK: struct.O.base = type { i32 (...)**, [4 x i8], %struct.H.base, %struct.G, [4 x i8] }
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352
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353
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354 // CHECK: 0 | struct P
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355 // CHECK-NEXT: 0 | struct M (base)
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356 // CHECK-NEXT: 0 | (M vbtable pointer)
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357 // CHECK-NEXT: 4 | int m
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358 // CHECK-NEXT: 8 | int p
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359 // CHECK-NEXT: 12 | struct K (virtual base)
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360 // CHECK-NEXT: 12 | int k
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361 // CHECK-NEXT: 16 | struct L (virtual base)
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362 // CHECK-NEXT: 16 | int l
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363 // CHECK-NEXT: sizeof=20, align=4
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364 // CHECK-NEXT: nvsize=12, nvalign=4
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365
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366 //CHECK: %struct.P = type { %struct.M.base, i32, %struct.K, %struct.L }
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367
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368 // CHECK: 0 | struct R (empty)
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369 // CHECK-NEXT: sizeof=1, align=1
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370 // CHECK-NEXT: nvsize=0, nvalign=1
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371
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372 //CHECK: %struct.R = type { i8 }
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373
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374 // CHECK: 0 | struct f
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375 // CHECK-NEXT: 0 | (f vftable pointer)
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376 // CHECK-NEXT: sizeof=4, align=4
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377 // CHECK-NEXT: nvsize=4, nvalign=4
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378
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379 // CHECK: 0 | struct s
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380 // CHECK-NEXT: 0 | (s vftable pointer)
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381 // CHECK-NEXT: 4 | (s vbtable pointer)
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382 // CHECK-NEXT: 8 | int r
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383 // CHECK-NEXT: 12 | (vtordisp for vbase f)
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384 // CHECK-NEXT: 16 | struct f (virtual base)
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385 // CHECK-NEXT: 16 | (f vftable pointer)
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386 // CHECK-NEXT: sizeof=20, align=4
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387 // CHECK-NEXT: nvsize=12, nvalign=4
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388
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389 // CHECK: 0 | class IA
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390 // CHECK-NEXT: 0 | (IA vftable pointer)
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391 // CHECK-NEXT: sizeof=4, align=4
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392 // CHECK-NEXT: nvsize=4, nvalign=4
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393
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394 // CHECK: 0 | class ICh
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395 // CHECK-NEXT: 0 | (ICh vftable pointer)
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396 // CHECK-NEXT: 4 | (ICh vbtable pointer)
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397 // CHECK-NEXT: 8 | (vtordisp for vbase IA)
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398 // CHECK-NEXT: 12 | class IA (virtual base)
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399 // CHECK-NEXT: 12 | (IA vftable pointer)
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400 // CHECK-NEXT: sizeof=16, align=4
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401 // CHECK-NEXT: nvsize=8, nvalign=4
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402
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403 // CHECK: 0 | struct sd
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404 // CHECK-NEXT: 0 | (sd vbtable pointer)
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405 // CHECK-NEXT: 4 | int q
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406 // CHECK-NEXT: 8 | char y
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407 // CHECK-NEXT: 12 | (vtordisp for vbase f)
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408 // CHECK-NEXT: 16 | struct f (virtual base)
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409 // CHECK-NEXT: 16 | (f vftable pointer)
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410 // CHECK-NEXT: 20 | struct s (virtual base)
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411 // CHECK-NEXT: 20 | (s vftable pointer)
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412 // CHECK-NEXT: 24 | (s vbtable pointer)
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413 // CHECK-NEXT: 28 | int r
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414 // CHECK-NEXT: 32 | (vtordisp for vbase IA)
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415 // CHECK-NEXT: 36 | class IA (virtual base)
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416 // CHECK-NEXT: 36 | (IA vftable pointer)
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417 // CHECK-NEXT: 40 | class ICh (virtual base)
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418 // CHECK-NEXT: 40 | (ICh vftable pointer)
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419 // CHECK-NEXT: 44 | (ICh vbtable pointer)
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420 // CHECK-NEXT: sizeof=48, align=4
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421 // CHECK-NEXT: nvsize=12, nvalign=4
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422
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423 // CHECK: %struct.f = type { i32 (...)** }
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424 // CHECK: %struct.s = type { i32 (...)**, i32*, i32, i32, %struct.f }
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425 // CHECK: %class.IA = type { i32 (...)** }
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426 // CHECK: %class.ICh = type { i32 (...)**, i32*, i32, %class.IA }
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427 // CHECK: %struct.sd = type { i32*, i32, i8, i32, %struct.f, %struct.s.base, i32, %class.IA, %class.ICh.base }
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428
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429 // CHECK: 0 | struct AV
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430 // CHECK-NEXT: 0 | (AV vftable pointer)
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431 // CHECK-NEXT: sizeof=4, align=4
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432 // CHECK-NEXT: nvsize=4, nvalign=4
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433
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434
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435 // CHECK: 0 | struct BV
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436 // CHECK-NEXT: 0 | struct AV (primary base)
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437 // CHECK-NEXT: 0 | (AV vftable pointer)
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438 // CHECK-NEXT: sizeof=4, align=4
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439 // CHECK-NEXT: nvsize=4, nvalign=4
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440
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441
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442 // CHECK: 0 | struct CV
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443 // CHECK-NEXT: 0 | (CV vbtable pointer)
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444 // CHECK-NEXT: 4 | (vtordisp for vbase BV)
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445 // CHECK-NEXT: 8 | struct BV (virtual base)
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446 // CHECK-NEXT: 8 | struct AV (primary base)
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447 // CHECK-NEXT: 8 | (AV vftable pointer)
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448 // CHECK-NEXT: sizeof=12, align=4
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449 // CHECK-NEXT: nvsize=4, nvalign=4
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450
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451 // CHECK: %struct.AV = type { i32 (...)** }
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452 // CHECK: %struct.BV = type { %struct.AV }
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453 // CHECK: %struct.CV = type { i32*, i32, %struct.BV }
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454 // CHECK: %struct.CV.base = type { i32* }
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455
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456 // CHECK: 0 | struct DV
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457 // CHECK-NEXT: 0 | struct BV (primary base)
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458 // CHECK-NEXT: 0 | struct AV (primary base)
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459 // CHECK-NEXT: 0 | (AV vftable pointer)
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460 // CHECK-NEXT: sizeof=4, align=4
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461 // CHECK-NEXT: nvsize=4, nvalign=4
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462
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463 // CHECK: %struct.DV = type { %struct.BV }
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464
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465 // CHECK: 0 | struct EV
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466 // CHECK-NEXT: 0 | struct DV (primary base)
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467 // CHECK-NEXT: 0 | struct BV (primary base)
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468 // CHECK-NEXT: 0 | struct AV (primary base)
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469 // CHECK-NEXT: 0 | (AV vftable pointer)
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470 // CHECK-NEXT: 4 | struct CV (base)
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471 // CHECK-NEXT: 4 | (CV vbtable pointer)
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472 // CHECK-NEXT: 8 | (vtordisp for vbase BV)
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473 // CHECK-NEXT: 12 | struct BV (virtual base)
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474 // CHECK-NEXT: 12 | struct AV (primary base)
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475 // CHECK-NEXT: 12 | (AV vftable pointer)
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476 // CHECK-NEXT: sizeof=16, align=4
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477 // CHECK-NEXT: nvsize=8, nvalign=4
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478
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479 // CHECK: %struct.EV = type { %struct.DV, %struct.CV.base, i32, %struct.BV }
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480 // CHECK: %struct.EV.base = type { %struct.DV, %struct.CV.base }
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481
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482 // Overriding a method means that all the vbases containing that
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483 // method need a vtordisp. Note: this code will cause an error in cl.exe.
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484 namespace test1 {
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485 struct A { virtual void foo(); };
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486 struct B : A {};
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487 struct C : virtual A, virtual B { C(); virtual void foo(); };
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488 void test() { C *c; }
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489
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490 // CHECK: 0 | struct test1::C
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491 // CHECK-NEXT: 0 | (C vbtable pointer)
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492 // CHECK-NEXT: 4 | (vtordisp for vbase A)
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493 // CHECK-NEXT: 8 | struct test1::A (virtual base)
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494 // CHECK-NEXT: 8 | (A vftable pointer)
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495 // CHECK-NEXT: 12 | (vtordisp for vbase B)
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496 // CHECK-NEXT: 16 | struct test1::B (virtual base)
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497 // CHECK-NEXT: 16 | struct test1::A (primary base)
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498 // CHECK-NEXT: 16 | (A vftable pointer)
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499 // CHECK-NEXT: sizeof=20, align=4
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500 // CHECK-NEXT: nvsize=4, nvalign=4
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501 }
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