copy-constructor-synthesis.cpp revision 4fcfde4d5c8f25e40720972a5543d538a0dcb220 
1// RUN: clang-cc -triple x86_64-apple-darwin -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 -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
9int init = 100;
10
11struct M {
12  int iM;
13  M() : iM(init++) {}
14};
15
16struct N {
17  int iN;
18  N() : iN(200) {}
19  N(N const & arg){this->iN = arg.iN; }
20};
21
22struct P {
23  int iP;
24  P() : iP(init++) {}
25};
26
27
28struct X  : M, N, P { // ...
29  X() : f1(1.0), d1(2.0), i1(3), name("HELLO"), bf1(0xff), bf2(0xabcd),
30        au_i1(1234), au1_4("MASKED") {}
31  P p0;
32  void pr() {
33    printf("iM = %d iN = %d, m1.iM = %d\n", iM, iN, m1.iM);
34    printf("im = %d p0.iP = %d, p1.iP = %d\n", iP, p0.iP, p1.iP);
35    printf("f1 = %f  d1 = %f  i1 = %d name(%s) \n", f1, d1, i1, name);
36    printf("bf1 = %x  bf2 = %x\n", bf1, bf2);
37    printf("au_i2 = %d\n", au_i2);
38    printf("au1_1 = %s\n", au1_1);
39  }
40  M m1;
41  P p1;
42  float f1;
43  double d1;
44  int i1;
45  const char *name;
46  unsigned bf1 : 8;
47  unsigned bf2 : 16;
48
49  union {
50    int au_i1;
51    int au_i2;
52  };
53  union {
54    const char * au1_1;
55    float au1_2;
56    int au1_3;
57    const char * au1_4;
58  };
59};
60
61static int ix = 1;
62// class with user-defined copy constructor.
63struct S {
64  S() : iS(ix++) {  }
65  S(const S& arg) { *this = arg; }
66  int iS;
67};
68
69// class with trivial copy constructor.
70struct I {
71  I() : iI(ix++) {  }
72  int iI;
73};
74
75struct XM {
76  XM() {  }
77  double dXM;
78  S ARR_S[3][4][2];
79  void pr() {
80   for (unsigned i = 0; i < 3; i++)
81     for (unsigned j = 0; j < 4; j++)
82      for (unsigned k = 0; k < 2; k++)
83        printf("ARR_S[%d][%d][%d] = %d\n", i,j,k, ARR_S[i][j][k].iS);
84   for (unsigned i = 0; i < 3; i++)
85      for (unsigned k = 0; k < 2; k++)
86        printf("ARR_I[%d][%d] = %d\n", i,k, ARR_I[i][k].iI);
87  }
88  I ARR_I[3][2];
89};
90
91int main() {
92  X a;
93  X b(a);
94  b.pr();
95  X x;
96  X c(x);
97  c.pr();
98
99  XM m0;
100  XM m1 = m0;
101  m1.pr();
102}
103
104// CHECK-LP64: .globl  __ZN1XC1ERKS_
105// CHECK-LP64: .weak_definition __ZN1XC1ERKS_
106// CHECK-LP64: __ZN1XC1ERKS_:
107
108// CHECK-LP32: .globl  __ZN1XC1ERKS_
109// CHECK-LP32: .weak_definition __ZN1XC1ERKS_
110// CHECK-LP32: __ZN1XC1ERKS_:
111