derived-to-base-conv.cpp revision 93034ca3d025e948ddfcdd78868957efc70741a7 
1// RUN: clang-cc -triple x86_64-apple-darwin -std=c++0x -S %s -o %t-64.s &&
2// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s &&
3// RUN: clang-cc -triple i386-apple-darwin -std=c++0x -S %s -o %t-32.s &&
4// RUN: FileCheck -check-prefix LP32 --input-file=%t-32.s %s &&
5// RUN: true
6
7extern "C" int printf(...);
8
9struct A {
10 A (const A&) { printf("A::A(const A&)\n"); }
11 A() {};
12};
13
14struct B : public A {
15  B() {};
16};
17
18struct C : public B {
19  C() {};
20};
21
22struct X {
23	operator B&() {printf("X::operator B&()\n"); return b; }
24	operator C&() {printf("X::operator C&()\n"); return c; }
25 	X (const X&) { printf("X::X(const X&)\n"); }
26 	X () { printf("X::X()\n"); }
27	B b;
28	C c;
29};
30
31void f(A) {
32  printf("f(A)\n");
33}
34
35
36void func(X x)
37{
38  f (x);
39}
40
41int main()
42{
43    X x;
44    func(x);
45}
46
47// CHECK-LP64: call     __ZN1XcvR1BEv
48// CHECK-LP64: call     __ZN1AC1ERKS_
49
50// CHECK-LP32: call     L__ZN1XcvR1BEv
51// CHECK-LP32: call     L__ZN1AC1ERKS_
52