| // RUN: %clang_cc1 -std=c++11 -S -triple x86_64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| |
| namespace std { |
| typedef decltype(sizeof(int)) size_t; |
| |
| // libc++'s implementation with __size_ replaced by __end_ |
| template <class _E> |
| class initializer_list |
| { |
| const _E* __begin_; |
| const _E* __end_; |
| |
| initializer_list(const _E* __b, const _E* __e) |
| : __begin_(__b), |
| __end_(__e) |
| {} |
| |
| public: |
| typedef _E value_type; |
| typedef const _E& reference; |
| typedef const _E& const_reference; |
| typedef size_t size_type; |
| |
| typedef const _E* iterator; |
| typedef const _E* const_iterator; |
| |
| initializer_list() : __begin_(nullptr), __end_(nullptr) {} |
| |
| size_t size() const {return __end_ - __begin_;} |
| const _E* begin() const {return __begin_;} |
| const _E* end() const {return __end_;} |
| }; |
| } |
| |
| // CHECK: @_ZGR15globalInitList1 = private constant [3 x i32] [i32 1, i32 2, i32 3] |
| // CHECK: @globalInitList1 = global {{[^ ]+}} { i32* getelementptr inbounds ([3 x i32]* @_ZGR15globalInitList1, {{[^)]*}}), i32* |
| std::initializer_list<int> globalInitList1 = {1, 2, 3}; |
| |
| void fn1(int i) { |
| // CHECK-LABEL: define void @_Z3fn1i |
| // temporary array |
| // CHECK: [[array:%[^ ]+]] = alloca [3 x i32] |
| // CHECK: getelementptr inbounds [3 x i32]* [[array]], i{{32|64}} 0 |
| // CHECK-NEXT: store i32 1, i32* |
| // CHECK-NEXT: getelementptr |
| // CHECK-NEXT: store |
| // CHECK-NEXT: getelementptr |
| // CHECK-NEXT: load |
| // CHECK-NEXT: store |
| // init the list |
| // CHECK-NEXT: getelementptr |
| // CHECK-NEXT: getelementptr inbounds [3 x i32]* |
| // CHECK-NEXT: store i32* |
| // CHECK-NEXT: getelementptr |
| // CHECK-NEXT: getelementptr inbounds [3 x i32]* [[array]], i{{32|64}} 0, i{{32|64}} 3 |
| // CHECK-NEXT: store i32* |
| std::initializer_list<int> intlist{1, 2, i}; |
| } |
| |
| struct destroyme1 { |
| ~destroyme1(); |
| }; |
| struct destroyme2 { |
| ~destroyme2(); |
| }; |
| |
| |
| void fn2() { |
| // CHECK-LABEL: define void @_Z3fn2v |
| void target(std::initializer_list<destroyme1>); |
| // objects should be destroyed before dm2, after call returns |
| target({ destroyme1(), destroyme1() }); |
| // CHECK: call void @_ZN10destroyme1D1Ev |
| destroyme2 dm2; |
| // CHECK: call void @_ZN10destroyme2D1Ev |
| } |
| |
| void fn3() { |
| // CHECK-LABEL: define void @_Z3fn3v |
| // objects should be destroyed after dm2 |
| auto list = { destroyme1(), destroyme1() }; |
| destroyme2 dm2; |
| // CHECK: call void @_ZN10destroyme2D1Ev |
| // CHECK: call void @_ZN10destroyme1D1Ev |
| } |