convert-to-fptr.cpp revision 2475d76920b43014e661690836642ca3c9967179 
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
6extern "C" int printf(...);
7
8int f1(int arg)  { return arg; };
9
10int f2(float arg) { return int(arg); };
11
12typedef int (*fp1)(int);
13
14typedef int (*fp2)(float);
15
16struct A {
17  operator fp1() { return f1; }
18  operator fp2() { return f2; }
19} a;
20
21
22// Test for function reference.
23typedef int (&fr1)(int);
24typedef int (&fr2)(float);
25
26struct B {
27  operator fr1() { return f1; }
28  operator fr2() { return f2; }
29} b;
30
31int main()
32{
33 int i = a(10); // Calls f1 via pointer returned from conversion function
34 printf("i = %d\n", i);
35
36 int j = b(20); // Calls f1 via pointer returned from conversion function
37 printf("j = %d\n", j);
38 return 0;
39}
40
41// CHECK-LP64: call __ZN1AcvPFiiEEv
42// CHECK-LP64: call __ZN1BcvRFiiEEv
43
44// CHECK-LP32: call L__ZN1AcvPFiiEEv
45// CHECK-LP32: call L__ZN1BcvRFiiEEv
46
47