test/CodeGenCXX/virtual-bases.cpp

   1 // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin10 -mconstructor-aliases | FileCheck %s
   2
   3 struct A {
   4   A();
   5 };
   6
   7 // CHECK: @_ZN1AC1Ev = alias {{.*}} @_ZN1AC2Ev
   8 // CHECK: define void @_ZN1AC2Ev(%struct.A* %this) unnamed_addr
   9 A::A() { }
  10
  11 struct B : virtual A {
  12   B();
  13 };
  14
  15 // CHECK: define void @_ZN1BC1Ev(%struct.B* %this) unnamed_addr
  16 // CHECK: define void @_ZN1BC2Ev(%struct.B* %this, i8** %vtt) unnamed_addr
  17 B::B() { }
  18
  19 struct C : virtual A {
  20   C(bool);
  21 };
  22
  23 // CHECK: define void @_ZN1CC1Eb(%struct.B* %this, i1 zeroext) unnamed_addr
  24 // CHECK: define void @_ZN1CC2Eb(%struct.B* %this, i8** %vtt, i1 zeroext) unnamed_addr
  25 C::C(bool) { }
  26
  27 // PR6251
  28 namespace PR6251 {
  29
  30 // Test that we don't call the A<char> constructor twice.
  31
  32 template<typename T>
  33 struct A { A(); };
  34
  35 struct B : virtual A<char> { };
  36 struct C : virtual A<char> { };
  37
  38 struct D : B, C  {
  39   D();
  40 };
  41
  42 // CHECK: define void @_ZN6PR62511DC1Ev(%"struct.PR6251::D"* %this) unnamed_addr
  43 // CHECK: call void @_ZN6PR62511AIcEC2Ev
  44 // CHECK-NOT: call void @_ZN6PR62511AIcEC2Ev
  45 // CHECK: ret void
  46 D::D() { }
  47
  48 }