references.cpp revision 482656833a71b63f67f3e93ee8c2d45b3d351ca8 
1// RUN: clang-cc -verify -emit-llvm -o %t %s
2
3void t1() {
4  extern int& a;
5  int b = a;
6}
7
8void t2(int& a) {
9  int b = a;
10}
11
12int g;
13int& gr = g;
14void t3() {
15  int b = gr;
16}
17
18// Test reference binding.
19
20struct C {};
21
22void f(const bool&);
23void f(const int&);
24void f(const _Complex int&);
25void f(const C&);
26
27C aggregate_return();
28
29bool& bool_reference_return();
30int& int_reference_return();
31_Complex int& complex_int_reference_return();
32
33void test_bool() {
34  bool a = true;
35  f(a);
36
37  f(true);
38
39  bool_reference_return() = true;
40}
41
42void test_scalar() {
43  int a = 10;
44  f(a);
45
46  struct { int bitfield : 3; } s = { 3 };
47  f(s.bitfield);
48
49  f(10);
50
51  __attribute((vector_size(16))) typedef int vec4;
52  f((vec4){1,2,3,4}[0]);
53
54  int_reference_return() = 10;
55}
56
57void test_complex() {
58  _Complex int a = 10i;
59  f(a);
60
61  f(10i);
62
63  complex_int_reference_return() = 10i;
64}
65
66void test_aggregate() {
67  C c;
68  f(c);
69
70  f(aggregate_return());
71}
72
73