| 1 | // RUN: %clang_cc1 -std=c++11 -S -triple x86_64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s |
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| 2 | |
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| 3 | namespace std { |
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| 4 | typedef decltype(sizeof(int)) size_t; |
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| 5 | |
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| 6 | // libc++'s implementation with __size_ replaced by __end_ |
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| 7 | template <class _E> |
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| 8 | class initializer_list |
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| 9 | { |
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| 10 | const _E* __begin_; |
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| 11 | const _E* __end_; |
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| 12 | |
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| 13 | initializer_list(const _E* __b, const _E* __e) |
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| 14 | : __begin_(__b), |
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| 15 | __end_(__e) |
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| 16 | {} |
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| 17 | |
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| 18 | public: |
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| 19 | typedef _E value_type; |
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| 20 | typedef const _E& reference; |
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| 21 | typedef const _E& const_reference; |
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| 22 | typedef size_t size_type; |
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| 23 | |
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| 24 | typedef const _E* iterator; |
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| 25 | typedef const _E* const_iterator; |
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| 26 | |
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| 27 | initializer_list() : __begin_(nullptr), __end_(nullptr) {} |
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| 28 | |
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| 29 | size_t size() const {return __end_ - __begin_;} |
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| 30 | const _E* begin() const {return __begin_;} |
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| 31 | const _E* end() const {return __end_;} |
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| 32 | }; |
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| 33 | } |
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| 34 | |
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| 35 | // CHECK: @_ZGR15globalInitList1_ = internal constant [3 x i32] [i32 1, i32 2, i32 3] |
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| 36 | // CHECK: @globalInitList1 = global {{[^ ]+}} { i32* getelementptr inbounds ([3 x i32], [3 x i32]* @_ZGR15globalInitList1_, {{[^)]*}}), i32* |
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| 37 | std::initializer_list<int> globalInitList1 = {1, 2, 3}; |
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| 38 | |
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| 39 | void fn1(int i) { |
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| 40 | // CHECK-LABEL: define void @_Z3fn1i |
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| 41 | // temporary array |
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| 42 | // CHECK: [[array:%[^ ]+]] = alloca [3 x i32] |
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| 43 | // CHECK: getelementptr inbounds [3 x i32], [3 x i32]* [[array]], i{{32|64}} 0 |
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| 44 | // CHECK-NEXT: store i32 1, i32* |
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| 45 | // CHECK-NEXT: getelementptr |
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| 46 | // CHECK-NEXT: store |
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| 47 | // CHECK-NEXT: getelementptr |
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| 48 | // CHECK-NEXT: load |
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| 49 | // CHECK-NEXT: store |
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| 50 | // init the list |
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| 51 | // CHECK-NEXT: getelementptr |
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| 52 | // CHECK-NEXT: getelementptr inbounds [3 x i32], [3 x i32]* |
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| 53 | // CHECK-NEXT: store i32* |
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| 54 | // CHECK-NEXT: getelementptr |
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| 55 | // CHECK-NEXT: getelementptr inbounds [3 x i32], [3 x i32]* [[array]], i{{32|64}} 0, i{{32|64}} 3 |
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| 56 | // CHECK-NEXT: store i32* |
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| 57 | std::initializer_list<int> intlist{1, 2, i}; |
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| 58 | } |
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| 59 | |
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| 60 | struct destroyme1 { |
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| 61 | ~destroyme1(); |
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| 62 | }; |
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| 63 | struct destroyme2 { |
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| 64 | ~destroyme2(); |
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| 65 | }; |
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| 66 | |
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| 67 | |
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| 68 | void fn2() { |
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| 69 | // CHECK-LABEL: define void @_Z3fn2v |
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| 70 | void target(std::initializer_list<destroyme1>); |
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| 71 | // objects should be destroyed before dm2, after call returns |
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| 72 | target({ destroyme1(), destroyme1() }); |
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| 73 | // CHECK: call void @_ZN10destroyme1D1Ev |
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| 74 | destroyme2 dm2; |
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| 75 | // CHECK: call void @_ZN10destroyme2D1Ev |
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| 76 | } |
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| 77 | |
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| 78 | void fn3() { |
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| 79 | // CHECK-LABEL: define void @_Z3fn3v |
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| 80 | // objects should be destroyed after dm2 |
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| 81 | auto list = { destroyme1(), destroyme1() }; |
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| 82 | destroyme2 dm2; |
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| 83 | // CHECK: call void @_ZN10destroyme2D1Ev |
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| 84 | // CHECK: call void @_ZN10destroyme1D1Ev |
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| 85 | } |
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| 86 | |
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