clang/test/CodeGenCXX/cxx0x-initializer-stdinitializerlist-pr12086.cpp

   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
   6 namespace 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
  53 constexpr int a = 2, b = 4, c = 6;
  54 std::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:   {{.*}} { ptr @_ZGR6nested0_, i64 2 },
  63 // CHECK-STATIC-BL:   {{.*}} { ptr @_ZGR6nested1_, i64 2 },
  64 // CHECK-STATIC-BL:   {{.*}} { ptr @_ZGR6nested2_, i64 2 }
  65 // CHECK-STATIC-BL: ], align 8
  66 // CHECK-STATIC-BL: @nested ={{.*}} global {{.*}} { {{.*}} @_ZGR6nested_, 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, ptr @_ZGR6nested0_
  74 // CHECK-DYNAMIC-BL: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested0_, i64 1)
  75 // CHECK-DYNAMIC-BL: store ptr @_ZGR6nested0_,
  76 // CHECK-DYNAMIC-BL:       ptr @_ZGR6nested_, align 8
  77 // CHECK-DYNAMIC-BL: store i64 2, ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i32 0, i32 1), align 8
  78 // CHECK-DYNAMIC-BL: store i32 3, ptr @_ZGR6nested1_
  79 // CHECK-DYNAMIC-BL: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested1_, i64 1)
  80 // CHECK-DYNAMIC-BL: store ptr @_ZGR6nested1_,
  81 // CHECK-DYNAMIC-BL:       ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1), align 8
  82 // CHECK-DYNAMIC-BL: store i64 2, ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1, i32 1), align 8
  83 // CHECK-DYNAMIC-BL: store i32 5, ptr @_ZGR6nested2_
  84 // CHECK-DYNAMIC-BL: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested2_, i64 1)
  85 // CHECK-DYNAMIC-BL: store ptr @_ZGR6nested2_,
  86 // CHECK-DYNAMIC-BL:       ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2), align 8
  87 // CHECK-DYNAMIC-BL: store i64 2, ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2, i32 1), align 8
  88 // CHECK-DYNAMIC-BL: store ptr @_ZGR6nested_,
  89 // CHECK-DYNAMIC-BL:       ptr @nested, align 8
  90 // CHECK-DYNAMIC-BL: store i64 3, ptr getelementptr inbounds ({{.*}}, ptr @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:   {{.*}} { ptr @_ZGR6nested0_,
  97 // CHECK-STATIC-BE:            ptr getelementptr (i8, ptr @_ZGR6nested0_, i64 8) }
  98 // CHECK-STATIC-BE:   {{.*}} { ptr @_ZGR6nested1_,
  99 // CHECK-STATIC-BE:            ptr getelementptr (i8, ptr @_ZGR6nested1_, i64 8) }
 100 // CHECK-STATIC-BE:   {{.*}} { ptr @_ZGR6nested2_,
 101 // CHECK-STATIC-BE:            ptr getelementptr (i8, ptr @_ZGR6nested2_, i64 8) }
 102 // CHECK-STATIC-BE: ], align 8
 103 // CHECK-STATIC-BE: @nested ={{.*}} global {{.*}} { ptr @_ZGR6nested_,
 104 // CHECK-STATIC-BE:                           {{.*}} getelementptr (i8, ptr @_ZGR6nested_, i64 48) }
 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, ptr @_ZGR6nested0_
 112 // CHECK-DYNAMIC-BE: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested0_, i64 1)
 113 // CHECK-DYNAMIC-BE: store ptr @_ZGR6nested0_,
 114 // CHECK-DYNAMIC-BE:       ptr @_ZGR6nested_, align 8
 115 // CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([2 x i32], ptr @_ZGR6nested0_, i64 1, i64 0),
 116 // CHECK-DYNAMIC-BE:       ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i32 0, i32 1), align 8
 117 // CHECK-DYNAMIC-BE: store i32 3, ptr @_ZGR6nested1_
 118 // CHECK-DYNAMIC-BE: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested1_, i64 1)
 119 // CHECK-DYNAMIC-BE: store ptr @_ZGR6nested1_,
 120 // CHECK-DYNAMIC-BE:       ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1), align 8
 121 // CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([2 x i32], ptr @_ZGR6nested1_, i64 1, i64 0),
 122 // CHECK-DYNAMIC-BE:       ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 1, i32 1), align 8
 123 // CHECK-DYNAMIC-BE: store i32 5, ptr @_ZGR6nested2_
 124 // CHECK-DYNAMIC-BE: store i32 {{.*}}, ptr getelementptr inbounds (i32, ptr @_ZGR6nested2_, i64 1)
 125 // CHECK-DYNAMIC-BE: store ptr @_ZGR6nested2_,
 126 // CHECK-DYNAMIC-BE:       ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2), align 8
 127 // CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([2 x i32], ptr @_ZGR6nested2_, i64 1, i64 0),
 128 // CHECK-DYNAMIC-BE:       ptr getelementptr inbounds ({{.*}}, ptr @_ZGR6nested_, i64 2, i32 1), align 8
 129 // CHECK-DYNAMIC-BE: store ptr @_ZGR6nested_,
 130 // CHECK-DYNAMIC-BE:       ptr @nested, align 8
 131 // CHECK-DYNAMIC-BE: store ptr getelementptr inbounds ([3 x {{.*}}], ptr @_ZGR6nested_, i64 1, i64 0),
 132 // CHECK-DYNAMIC-BE:       ptr getelementptr inbounds ({{.*}}, ptr @nested, i32 0, i32 1), align 8