copy-constructor-synthesis.cpp revision 6d10ac9ef3435993d0ceae7782fbeee7659af30e 
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
6extern "C" int printf(...);
7
8int init = 100;
9
10struct M {
11  int iM;
12  M() : iM(init++) {}
13};
14
15struct N {
16  int iN;
17  N() : iN(200) {}
18  N(N const & arg){this->iN = arg.iN; }
19};
20
21struct P {
22  int iP;
23  P() : iP(init++) {}
24};
25
26
27struct X  : M, N, P { // ...
28  X() : f1(1.0), d1(2.0), i1(3), name("HELLO"), bf1(0xff), bf2(0xabcd),
29        au_i1(1234), au1_4("MASKED") {}
30  P p0;
31  void pr() {
32    printf("iM = %d iN = %d, m1.iM = %d\n", iM, iN, m1.iM);
33    printf("im = %d p0.iP = %d, p1.iP = %d\n", iP, p0.iP, p1.iP);
34    printf("f1 = %f  d1 = %f  i1 = %d name(%s) \n", f1, d1, i1, name);
35    printf("bf1 = %x  bf2 = %x\n", bf1, bf2);
36    printf("au_i2 = %d\n", au_i2);
37    printf("au1_1 = %s\n", au1_1);
38  }
39  M m1;
40  P p1;
41  float f1;
42  double d1;
43  int i1;
44  const char *name;
45  unsigned bf1 : 8;
46  unsigned bf2 : 16;
47  int arr[2];
48  _Complex float complex;
49
50  union {
51    int au_i1;
52    int au_i2;
53  };
54  union {
55    const char * au1_1;
56    float au1_2;
57    int au1_3;
58    const char * au1_4;
59  };
60};
61
62static int ix = 1;
63// class with user-defined copy constructor.
64struct S {
65  S() : iS(ix++) {  }
66  S(const S& arg) { *this = arg; }
67  int iS;
68};
69
70// class with trivial copy constructor.
71struct I {
72  I() : iI(ix++) {  }
73  int iI;
74};
75
76struct XM {
77  XM() {  }
78  double dXM;
79  S ARR_S[3][4][2];
80  void pr() {
81   for (unsigned i = 0; i < 3; i++)
82     for (unsigned j = 0; j < 4; j++)
83      for (unsigned k = 0; k < 2; k++)
84        printf("ARR_S[%d][%d][%d] = %d\n", i,j,k, ARR_S[i][j][k].iS);
85   for (unsigned i = 0; i < 3; i++)
86      for (unsigned k = 0; k < 2; k++)
87        printf("ARR_I[%d][%d] = %d\n", i,k, ARR_I[i][k].iI);
88  }
89  I ARR_I[3][2];
90};
91
92int main() {
93  X a;
94  X b(a);
95  b.pr();
96  X x;
97  X c(x);
98  c.pr();
99
100  XM m0;
101  XM m1 = m0;
102  m1.pr();
103}
104
105// CHECK-LP64: .globl  __ZN1XC1ERKS_
106// CHECK-LP64: .weak_definition __ZN1XC1ERKS_
107// CHECK-LP64: __ZN1XC1ERKS_:
108
109// CHECK-LP32: .globl  __ZN1XC1ERKS_
110// CHECK-LP32: .weak_definition __ZN1XC1ERKS_
111// CHECK-LP32: __ZN1XC1ERKS_:
112