xref: /minix3/external/bsd/llvm/dist/clang/test/CodeGenCXX/convert-to-fptr.cpp (revision f4a2713ac843a11c696ec80c0a5e3e5d80b4d338)
1*f4a2713aSLionel Sambuc // REQUIRES: x86-registered-target,x86-64-registered-target
2*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -S %s -o %t-64.s
3*f4a2713aSLionel Sambuc // RUN: FileCheck -check-prefix CHECK-LP64 --input-file=%t-64.s %s
4*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple i386-apple-darwin -std=c++11 -S %s -o %t-32.s
5*f4a2713aSLionel Sambuc // RUN: FileCheck -check-prefix CHECK-LP32 --input-file=%t-32.s %s
6*f4a2713aSLionel Sambuc 
7*f4a2713aSLionel Sambuc extern "C" int printf(...);
8*f4a2713aSLionel Sambuc 
9*f4a2713aSLionel Sambuc int f1(int arg)  { return arg; };
10*f4a2713aSLionel Sambuc 
11*f4a2713aSLionel Sambuc int f2(float arg) { return int(arg); };
12*f4a2713aSLionel Sambuc 
13*f4a2713aSLionel Sambuc typedef int (*fp1)(int);
14*f4a2713aSLionel Sambuc 
15*f4a2713aSLionel Sambuc typedef int (*fp2)(float);
16*f4a2713aSLionel Sambuc 
17*f4a2713aSLionel Sambuc struct A {
18*f4a2713aSLionel Sambuc   operator fp1() { return f1; }
19*f4a2713aSLionel Sambuc   operator fp2() { return f2; }
20*f4a2713aSLionel Sambuc } a;
21*f4a2713aSLionel Sambuc 
22*f4a2713aSLionel Sambuc 
23*f4a2713aSLionel Sambuc // Test for function reference.
24*f4a2713aSLionel Sambuc typedef int (&fr1)(int);
25*f4a2713aSLionel Sambuc typedef int (&fr2)(float);
26*f4a2713aSLionel Sambuc 
27*f4a2713aSLionel Sambuc struct B {
28*f4a2713aSLionel Sambuc   operator fr1() { return f1; }
29*f4a2713aSLionel Sambuc   operator fr2() { return f2; }
30*f4a2713aSLionel Sambuc } b;
31*f4a2713aSLionel Sambuc 
32*f4a2713aSLionel Sambuc int main()
33*f4a2713aSLionel Sambuc {
34*f4a2713aSLionel Sambuc  int i = a(10); // Calls f1 via pointer returned from conversion function
35*f4a2713aSLionel Sambuc  printf("i = %d\n", i);
36*f4a2713aSLionel Sambuc 
37*f4a2713aSLionel Sambuc  int j = b(20); // Calls f1 via pointer returned from conversion function
38*f4a2713aSLionel Sambuc  printf("j = %d\n", j);
39*f4a2713aSLionel Sambuc  return 0;
40*f4a2713aSLionel Sambuc }
41*f4a2713aSLionel Sambuc 
42*f4a2713aSLionel Sambuc // CHECK-LP64: callq __ZN1AcvPFiiEEv
43*f4a2713aSLionel Sambuc // CHECK-LP64: callq __ZN1BcvRFiiEEv
44*f4a2713aSLionel Sambuc 
45*f4a2713aSLionel Sambuc // CHECK-LP32: calll L__ZN1AcvPFiiEEv
46*f4a2713aSLionel Sambuc // CHECK-LP32: calll L__ZN1BcvRFiiEEv
47*f4a2713aSLionel Sambuc 
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