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test
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CodeGenCXX
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vtable-pointer-initialization.cpp

vtable-pointer-initialization.cpp 1.8 KB
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  1. // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
    2. 

  2. 

  3. struct Field {
    4. 

  4.   Field();
    5. 

  5.   ~Field();
    6. 

  6. };
    7. 

  7. 

  8. struct Base {
    9. 

  9.   Base();
    10. 

  10.   ~Base();
    11. 

  11. };
    12. 

  12. 

  13. struct A : Base {
    14. 

  14.   A();
    15. 

  15.   ~A();
    16. 

  16. 

  17.   virtual void f();
    18. 

  18. 

  19.   Field field;
    20. 

  20. };
    21. 

  21. 

  22. // CHECK-LABEL: define void @_ZN1AC2Ev(%struct.A* noalias %this) unnamed_addr
    23. 

  23. // CHECK: call void @_ZN4BaseC2Ev(
    24. 

  24. // CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1A, i32 0, inrange i32 0, i32 2) to i32 (...)**)
    25. 

  25. // CHECK: call void @_ZN5FieldC1Ev(
    26. 

  26. // CHECK: ret void
    27. 

  27. A::A() { }
    28. 

  28. 

  29. // CHECK-LABEL: define void @_ZN1AD2Ev(%struct.A* %this) unnamed_addr
    30. 

  30. // CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1A, i32 0, inrange i32 0, i32 2) to i32 (...)**)
    31. 

  31. // CHECK: call void @_ZN5FieldD1Ev(
    32. 

  32. // CHECK: call void @_ZN4BaseD2Ev(
    33. 

  33. // CHECK: ret void
    34. 

  34. A::~A() { }
    35. 

  35. 

  36. struct B : Base {
    37. 

  37.   virtual void f();
    38. 

  38. 

  39.   Field field;
    40. 

  40. };
    41. 

  41. 

  42. void f() { B b; }
    43. 

  43. 

  44. // CHECK-LABEL: define linkonce_odr void @_ZN1BC1Ev(%struct.B* noalias %this) unnamed_addr
    45. 

  45. // CHECK: call void @_ZN1BC2Ev(
    46. 

  46. 

  47. // CHECK-LABEL: define linkonce_odr void @_ZN1BD1Ev(%struct.B* %this) unnamed_addr
    48. 

  48. // CHECK: call void @_ZN1BD2Ev(
    49. 

  49. 

  50. // CHECK-LABEL: define linkonce_odr void @_ZN1BC2Ev(%struct.B* noalias %this) unnamed_addr
    51. 

  51. // CHECK: call void @_ZN4BaseC2Ev(
    52. 

  52. // CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1B, i32 0, inrange i32 0, i32 2) to i32 (...)**)
    53. 

  53. // CHECK: call void @_ZN5FieldC1Ev
    54. 

  54. // CHECK: ret void
    55. 

  55. 

  56. // CHECK-LABEL: define linkonce_odr void @_ZN1BD2Ev(%struct.B* %this) unnamed_addr
    57. 

  57. // CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1B, i32 0, inrange i32 0, i32 2) to i32 (...)**)
    58. 

  58. // CHECK: call void @_ZN5FieldD1Ev(
    59. 

  59. // CHECK: call void @_ZN4BaseD2Ev(
    60. 

  60. // CHECK: ret void
    61.