1// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-STATIC-BL
2// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s -Dconstexpr= | FileCheck %s --check-prefix=CHECK-DYNAMIC-BL
3// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s -DUSE_END | FileCheck %s --check-prefix=CHECK-STATIC-BE
4// RUN: %clang_cc1 -triple x86_64-linux-gnu -std=c++11 -emit-llvm -o - %s -DUSE_END -Dconstexpr= | FileCheck %s --check-prefix=CHECK-DYNAMIC-BE
5
6namespace std {
7  typedef decltype(sizeof(int)) size_t;
8
9  template <class _E>
10  class initializer_list
11  {
12    const _E* __begin_;
13#ifdef USE_END
14    const _E* __end_;
15#else
16    size_t    __size_;
17#endif
18
19    constexpr initializer_list(const _E* __b, size_t __s)
20      : __begin_(__b),
21#ifdef USE_END
22        __end_(__b + __s)
23#else
24        __size_(__s)
25#endif
26    {}
27
28  public:
29    typedef _E        value_type;
30    typedef const _E& reference;
31    typedef const _E& const_reference;
32    typedef size_t    size_type;
33
34    typedef const _E* iterator;
35    typedef const _E* const_iterator;
36
37#ifdef USE_END
38    constexpr initializer_list() : __begin_(nullptr), __end_(nullptr) {}
39
40    size_t    size()  const {return __end_ - __begin_;}
41    const _E* begin() const {return __begin_;}
42    const _E* end()   const {return __end_;}
43#else
44    constexpr initializer_list() : __begin_(nullptr), __size_(0) {}
45
46    size_t    size()  const {return __size_;}
47    const _E* begin() const {return __begin_;}
48    const _E* end()   const {return __begin_ + __size_;}
49#endif
50  };
51}
52
53constexpr int a = 2, b = 4, c = 6;
54std::initializer_list<std::initializer_list<int>> nested = {
55  {1, a}, {3, b}, {5, c}
56};
57
58// CHECK-STATIC-BL: @_ZGR6nested0_ = internal constant [2 x i32] [i32 1, i32 2], align 4
59// CHECK-STATIC-BL: @_ZGR6nested1_ = internal constant [2 x i32] [i32 3, i32 4], align 4
60// CHECK-STATIC-BL: @_ZGR6nested2_ = internal constant [2 x i32] [i32 5, i32 6], align 4
61// CHECK-STATIC-BL: @_ZGR6nested_ = internal constant [3 x {{.*}}] [
62// CHECK-STATIC-BL:   {{.*}} { i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i32 0, i32 0), i64 2 },
63// CHECK-STATIC-BL:   {{.*}} { i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i32 0, i32 0), i64 2 },
64// CHECK-STATIC-BL:   {{.*}} { i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i32 0, i32 0), i64 2 }
65// CHECK-STATIC-BL: ], align 8
66// CHECK-STATIC-BL: @nested = global {{.*}} { {{.*}} getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i32 0, i32 0), i64 3 }, align 8
67
68// CHECK-DYNAMIC-BL: @nested = global
69// CHECK-DYNAMIC-BL: @_ZGR6nested_ = internal global [3 x
70// CHECK-DYNAMIC-BL: @_ZGR6nested0_ = internal global [2 x i32] zeroinitializer
71// CHECK-DYNAMIC-BL: @_ZGR6nested1_ = internal global [2 x i32] zeroinitializer
72// CHECK-DYNAMIC-BL: @_ZGR6nested2_ = internal global [2 x i32] zeroinitializer
73// CHECK-DYNAMIC-BL: store i32 1, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i64 0, i64 0)
74// CHECK-DYNAMIC-BL: store i32 {{.*}}, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i64 0, i64 1)
75// CHECK-DYNAMIC-BL: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i64 0, i64 0),
76// CHECK-DYNAMIC-BL:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 0, i32 0), align 8
77// CHECK-DYNAMIC-BL: store i64 2, i64* getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 0, i32 1), align 8
78// CHECK-DYNAMIC-BL: store i32 3, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i64 0, i64 0)
79// CHECK-DYNAMIC-BL: store i32 {{.*}}, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i64 0, i64 1)
80// CHECK-DYNAMIC-BL: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i64 0, i64 0),
81// CHECK-DYNAMIC-BL:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 1, i32 0), align 8
82// CHECK-DYNAMIC-BL: store i64 2, i64* getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 1, i32 1), align 8
83// CHECK-DYNAMIC-BL: store i32 5, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i64 0, i64 0)
84// CHECK-DYNAMIC-BL: store i32 {{.*}}, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i64 0, i64 1)
85// CHECK-DYNAMIC-BL: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i64 0, i64 0),
86// CHECK-DYNAMIC-BL:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 2, i32 0), align 8
87// CHECK-DYNAMIC-BL: store i64 2, i64* getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 2, i32 1), align 8
88// CHECK-DYNAMIC-BL: store {{.*}}* getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 0),
89// CHECK-DYNAMIC-BL:       {{.*}}** getelementptr inbounds ({{.*}}, {{.*}}* @nested, i32 0, i32 0), align 8
90// CHECK-DYNAMIC-BL: store i64 3, i64* getelementptr inbounds ({{.*}}, {{.*}}* @nested, i32 0, i32 1), align 8
91
92// CHECK-STATIC-BE: @_ZGR6nested0_ = internal constant [2 x i32] [i32 1, i32 2], align 4
93// CHECK-STATIC-BE: @_ZGR6nested1_ = internal constant [2 x i32] [i32 3, i32 4], align 4
94// CHECK-STATIC-BE: @_ZGR6nested2_ = internal constant [2 x i32] [i32 5, i32 6], align 4
95// CHECK-STATIC-BE: @_ZGR6nested_ = internal constant [3 x {{.*}}] [
96// CHECK-STATIC-BE:   {{.*}} { i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i32 0, i32 0),
97// CHECK-STATIC-BE:            i32* bitcast (i8* getelementptr (i8, i8* bitcast ([2 x i32]* @_ZGR6nested0_ to i8*), i64 8) to i32*) }
98// CHECK-STATIC-BE:   {{.*}} { i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i32 0, i32 0),
99// CHECK-STATIC-BE:            i32* bitcast (i8* getelementptr (i8, i8* bitcast ([2 x i32]* @_ZGR6nested1_ to i8*), i64 8) to i32*) }
100// CHECK-STATIC-BE:   {{.*}} { i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i32 0, i32 0),
101// CHECK-STATIC-BE:            i32* bitcast (i8* getelementptr (i8, i8* bitcast ([2 x i32]* @_ZGR6nested2_ to i8*), i64 8) to i32*) }
102// CHECK-STATIC-BE: ], align 8
103// CHECK-STATIC-BE: @nested = global {{.*}} { {{.*}} getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i32 0, i32 0),
104// CHECK-STATIC-BE:                           {{.*}} bitcast ({{.*}}* getelementptr (i8, i8* bitcast ([3 x {{.*}}]* @_ZGR6nested_ to i8*), i64 48) to {{.*}}*) }
105
106// CHECK-DYNAMIC-BE: @nested = global
107// CHECK-DYNAMIC-BE: @_ZGR6nested_ = internal global [3 x
108// CHECK-DYNAMIC-BE: @_ZGR6nested0_ = internal global [2 x i32] zeroinitializer
109// CHECK-DYNAMIC-BE: @_ZGR6nested1_ = internal global [2 x i32] zeroinitializer
110// CHECK-DYNAMIC-BE: @_ZGR6nested2_ = internal global [2 x i32] zeroinitializer
111// CHECK-DYNAMIC-BE: store i32 1, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i64 0, i64 0)
112// CHECK-DYNAMIC-BE: store i32 {{.*}}, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i64 0, i64 1)
113// CHECK-DYNAMIC-BE: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i64 0, i64 0),
114// CHECK-DYNAMIC-BE:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 0, i32 0), align 8
115// CHECK-DYNAMIC-BE: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested0_, i64 1, i64 0),
116// CHECK-DYNAMIC-BE:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 0, i32 1), align 8
117// CHECK-DYNAMIC-BE: store i32 3, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i64 0, i64 0)
118// CHECK-DYNAMIC-BE: store i32 {{.*}}, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i64 0, i64 1)
119// CHECK-DYNAMIC-BE: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i64 0, i64 0),
120// CHECK-DYNAMIC-BE:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 1, i32 0), align 8
121// CHECK-DYNAMIC-BE: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested1_, i64 1, i64 0),
122// CHECK-DYNAMIC-BE:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 1, i32 1), align 8
123// CHECK-DYNAMIC-BE: store i32 5, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i64 0, i64 0)
124// CHECK-DYNAMIC-BE: store i32 {{.*}}, i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i64 0, i64 1)
125// CHECK-DYNAMIC-BE: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i64 0, i64 0),
126// CHECK-DYNAMIC-BE:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 2, i32 0), align 8
127// CHECK-DYNAMIC-BE: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @_ZGR6nested2_, i64 1, i64 0),
128// CHECK-DYNAMIC-BE:       i32** getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 2, i32 1), align 8
129// CHECK-DYNAMIC-BE: store {{.*}}* getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 0, i64 0),
130// CHECK-DYNAMIC-BE:       {{.*}}** getelementptr inbounds ({{.*}}, {{.*}}* @nested, i32 0, i32 0), align 8
131// CHECK-DYNAMIC-BE: store {{.*}}* getelementptr inbounds ([3 x {{.*}}], [3 x {{.*}}]* @_ZGR6nested_, i64 1, i64 0),
132// CHECK-DYNAMIC-BE:       {{.*}}** getelementptr inbounds ({{.*}}, {{.*}}* @nested, i32 0, i32 1), align 8
133