summaryrefslogtreecommitdiffstats
path: root/test/CodeGenCXX/pointers-to-data-members.cpp
blob: d96eb03b8d82eb849853967eb4b59f6ef53aacf9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-apple-darwin10 | FileCheck %s

struct A { int a; int b; };
struct B { int b; };
struct C : B, A { };

// Zero init.
namespace ZeroInit {
  // CHECK: @_ZN8ZeroInit1aE = global i64 -1
  int A::* a;
  
  // CHECK: @_ZN8ZeroInit2aaE = global [2 x i64] [i64 -1, i64 -1]
  int A::* aa[2];
  
  // CHECK: @_ZN8ZeroInit3aaaE = global [2 x [2 x i64]] {{\[}}[2 x i64] [i64 -1, i64 -1], [2 x i64] [i64 -1, i64 -1]]
  int A::* aaa[2][2];
  
  // CHECK: @_ZN8ZeroInit1bE = global i64 -1,
  int A::* b = 0;

  // CHECK: @_ZN8ZeroInit2saE = global %struct.anon { i64 -1 }
  struct {
    int A::*a;
  } sa;
  
  // CHECK: @_ZN8ZeroInit3ssaE = 
  // CHECK: [2 x i64] [i64 -1, i64 -1]
  struct {
    int A::*aa[2];
  } ssa[2];
  
  // CHECK: @_ZN8ZeroInit2ssE = global %1 { %struct.anon { i64 -1 } }
  struct {
    struct {
      int A::*pa;
    } s;
  } ss;
}

// PR5674
namespace PR5674 {
  // CHECK: @_ZN6PR56742pbE = global i64 4
  int A::*pb = &A::b;
}

// Casts.
namespace Casts {

int A::*pa;
int C::*pc;

void f() {
  // CHECK: store i64 -1, i64* @_ZN5Casts2paE
  pa = 0;

  // CHECK: [[ADJ:%[a-zA-Z0-9\.]+]] = add i64 {{.*}}, 4
  // CHECK: store i64 [[ADJ]], i64* @_ZN5Casts2pcE
  pc = pa;

  // CHECK: [[ADJ:%[a-zA-Z0-9\.]+]] = sub i64 {{.*}}, 4
  // CHECK: store i64 [[ADJ]], i64* @_ZN5Casts2paE
  pa = static_cast<int A::*>(pc);
}

}

// Comparisons
namespace Comparisons {
  void f() {
    int A::*a;

    // CHECK: icmp ne i64 {{.*}}, -1
    if (a) { }

    // CHECK: icmp ne i64 {{.*}}, -1
    if (a != 0) { }
    
    // CHECK: icmp ne i64 -1, {{.*}}
    if (0 != a) { }

    // CHECK: icmp eq i64 {{.*}}, -1
    if (a == 0) { }

    // CHECK: icmp eq i64 -1, {{.*}}
    if (0 == a) { }
  }
}
OpenPOWER on IntegriCloud