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// 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_ = internal constant [3 x i32] [i32 1, i32 2, i32 3]
// CHECK: @globalInitList1 = global {{[^ ]+}} { i32* getelementptr inbounds ([3 x i32], [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], [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], [3 x i32]*
// CHECK-NEXT: store i32*
// CHECK-NEXT: getelementptr
// CHECK-NEXT: getelementptr inbounds [3 x i32], [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
}
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