xref: /aosp_15_r20/external/clang/test/CodeGenCXX/convert-to-fptr.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm %s -o - | \
2*67e74705SXin Li // RUN: FileCheck %s
3*67e74705SXin Li // RUN: %clang_cc1 -triple i386-apple-darwin -std=c++11 -emit-llvm %s -o - | \
4*67e74705SXin Li // RUN: FileCheck %s
5*67e74705SXin Li 
6*67e74705SXin Li extern "C" int printf(...);
7*67e74705SXin Li 
f1(int arg)8*67e74705SXin Li int f1(int arg)  { return arg; };
9*67e74705SXin Li 
f2(float arg)10*67e74705SXin Li int f2(float arg) { return int(arg); };
11*67e74705SXin Li 
12*67e74705SXin Li typedef int (*fp1)(int);
13*67e74705SXin Li 
14*67e74705SXin Li typedef int (*fp2)(float);
15*67e74705SXin Li 
16*67e74705SXin Li struct A {
operator fp1A17*67e74705SXin Li   operator fp1() { return f1; }
operator fp2A18*67e74705SXin Li   operator fp2() { return f2; }
19*67e74705SXin Li } a;
20*67e74705SXin Li 
21*67e74705SXin Li 
22*67e74705SXin Li // Test for function reference.
23*67e74705SXin Li typedef int (&fr1)(int);
24*67e74705SXin Li typedef int (&fr2)(float);
25*67e74705SXin Li 
26*67e74705SXin Li struct B {
operator fr1B27*67e74705SXin Li   operator fr1() { return f1; }
operator fr2B28*67e74705SXin Li   operator fr2() { return f2; }
29*67e74705SXin Li } b;
30*67e74705SXin Li 
main()31*67e74705SXin Li int main()
32*67e74705SXin Li {
33*67e74705SXin Li  int i = a(10); // Calls f1 via pointer returned from conversion function
34*67e74705SXin Li  printf("i = %d\n", i);
35*67e74705SXin Li 
36*67e74705SXin Li  int j = b(20); // Calls f1 via pointer returned from conversion function
37*67e74705SXin Li  printf("j = %d\n", j);
38*67e74705SXin Li  return 0;
39*67e74705SXin Li }
40*67e74705SXin Li 
41*67e74705SXin Li // CHECK: call i32 (i32)* @_ZN1AcvPFiiEEv
42*67e74705SXin Li // CHECK: call i32 (i32)* @_ZN1BcvRFiiEEv
43