value-init.cpp revision 9021718882441dd391a1960084580d3cd19c423a 
1// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
2
3struct A {
4  virtual ~A();
5};
6
7struct B : A { };
8
9struct C {
10  int i;
11  B b;
12};
13
14// CHECK: _Z15test_value_initv
15void test_value_init() {
16  // This value initialization requires zero initialization of the 'B'
17  // subobject followed by a call to its constructor.
18  // PR5800
19
20  // CHECK: store i32 17
21  // CHECK: call void @llvm.memset.p0i8.i64
22  // CHECK: call void @_ZN1BC1Ev
23  C c = { 17 } ;
24  // CHECK: call void @_ZN1CD1Ev
25}
26
27enum enum_type { negative_number = -1, magic_number = 42 };
28
29class enum_holder
30{
31  enum_type m_enum;
32
33public:
34  enum_holder() : m_enum(magic_number) { }
35};
36
37struct enum_holder_and_int
38{
39  enum_holder e;
40  int i;
41};
42
43// CHECK: _Z24test_enum_holder_and_intv()
44void test_enum_holder_and_int() {
45  // CHECK: alloca
46  // CHECK-NEXT: bitcast
47  // CHECK-NEXT: call void @llvm.memset
48  // CHECK-NEXT: call void @_ZN19enum_holder_and_intC1Ev
49  enum_holder_and_int();
50  // CHECK-NEXT: ret void
51}
52
53// PR7834: don't crash.
54namespace test1 {
55  struct A {
56    int A::*f;
57    A();
58    A(const A&);
59    A &operator=(const A &);
60  };
61
62  struct B {
63    A base;
64  };
65
66  void foo() {
67    B();
68  }
69}
70