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// RUN: %clang_cc1 -std=c++17 %s -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s --implicit-check-not='call{{.*}}dtor'
namespace std {
typedef decltype(sizeof(int)) size_t;
template <class E>
struct initializer_list {
const E *begin;
size_t size;
initializer_list() : begin(nullptr), size(0) {}
};
}
void then();
struct dtor {
~dtor();
};
dtor ctor();
auto &&lambda = [a = {ctor()}] {};
// CHECK-LABEL: define
// CHECK: call {{.*}}ctor
// CHECK: call {{.*}}atexit{{.*}}global_array_dtor
// CHECK-LABEL: define{{.*}}global_array_dtor
// CHECK: call {{.*}}dtor
// [lifetime extension occurs if the object was obtained by]
// -- a temporary materialization conversion
// CHECK-LABEL: ref_binding
void ref_binding() {
// CHECK: call {{.*}}ctor
auto &&x = ctor();
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// -- ( expression )
// CHECK-LABEL: parens
void parens() {
// CHECK: call {{.*}}ctor
auto &&x = ctor();
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// -- subscripting of an array
// CHECK-LABEL: array_subscript_1
void array_subscript_1() {
using T = dtor[1];
// CHECK: call {{.*}}ctor
auto &&x = T{ctor()}[0];
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// CHECK-LABEL: array_subscript_2
void array_subscript_2() {
using T = dtor[1];
// CHECK: call {{.*}}ctor
auto &&x = ((dtor*)T{ctor()})[0];
// CHECK: call {{.*}}dtor
// CHECK: call {{.*}}then
then();
// CHECK: }
}
struct with_member { dtor d; ~with_member(); };
struct with_ref_member { dtor &&d; ~with_ref_member(); };
// -- a class member access using the . operator [...]
// CHECK-LABEL: member_access_1
void member_access_1() {
// CHECK: call {{.*}}ctor
auto &&x = with_member{ctor()}.d;
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}with_member
// CHECK: }
}
// CHECK-LABEL: member_access_2
void member_access_2() {
// CHECK: call {{.*}}ctor
auto &&x = with_ref_member{ctor()}.d;
// CHECK: call {{.*}}with_ref_member
// CHECK: call {{.*}}dtor
// CHECK: call {{.*}}then
then();
// CHECK: }
}
// CHECK-LABEL: member_access_3
void member_access_3() {
// CHECK: call {{.*}}ctor
auto &&x = (&(const with_member&)with_member{ctor()})->d;
// CHECK: call {{.*}}with_member
// CHECK: call {{.*}}then
then();
// CHECK: }
}
// -- a pointer-to-member operation using the .* operator [...]
// CHECK-LABEL: member_ptr_access_1
void member_ptr_access_1() {
// CHECK: call {{.*}}ctor
auto &&x = with_member{ctor()}.*&with_member::d;
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}with_member
// CHECK: }
}
// CHECK-LABEL: member_ptr_access_2
void member_ptr_access_2() {
// CHECK: call {{.*}}ctor
auto &&x = (&(const with_member&)with_member{ctor()})->*&with_member::d;
// CHECK: call {{.*}}with_member
// CHECK: call {{.*}}then
then();
// CHECK: }
}
// -- a [named] cast [...]
// CHECK-LABEL: static_cast
void test_static_cast() {
// CHECK: call {{.*}}ctor
auto &&x = static_cast<dtor&&>(ctor());
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// CHECK-LABEL: const_cast
void test_const_cast() {
// CHECK: call {{.*}}ctor
auto &&x = const_cast<dtor&&>(ctor());
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// CHECK-LABEL: reinterpret_cast
void test_reinterpret_cast() {
// CHECK: call {{.*}}ctor
auto &&x = reinterpret_cast<dtor&&>(static_cast<dtor&&>(ctor()));
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// CHECK-LABEL: dynamic_cast
void test_dynamic_cast() {
// CHECK: call {{.*}}ctor
auto &&x = dynamic_cast<dtor&&>(ctor());
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// -- [explicit cast notation is defined in terms of the above]
// CHECK-LABEL: c_style_cast
void c_style_cast() {
// CHECK: call {{.*}}ctor
auto &&x = (dtor&&)ctor();
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// CHECK-LABEL: function_style_cast
void function_style_cast() {
// CHECK: call {{.*}}ctor
using R = dtor&&;
auto &&x = R(ctor());
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// -- a conditional operator
// CHECK-LABEL: conditional
void conditional(bool b) {
// CHECK: call {{.*}}ctor
// CHECK: call {{.*}}ctor
auto &&x = b ? (dtor&&)ctor() : (dtor&&)ctor();
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: call {{.*}}dtor
// CHECK: }
}
// -- a comma expression
// CHECK-LABEL: comma
void comma() {
// CHECK: call {{.*}}ctor
auto &&x = (true, (dtor&&)ctor());
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// This applies recursively: if an object is lifetime-extended and contains a
// reference, the referent is also extended.
// CHECK-LABEL: init_capture_ref
void init_capture_ref() {
// CHECK: call {{.*}}ctor
auto x = [&a = (const dtor&)ctor()] {};
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// CHECK-LABEL: init_capture_ref_indirect
void init_capture_ref_indirect() {
// CHECK: call {{.*}}ctor
auto x = [&a = (const dtor&)ctor()] {};
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
// CHECK-LABEL: init_capture_init_list
void init_capture_init_list() {
// CHECK: call {{.*}}ctor
auto x = [a = {ctor()}] {};
// CHECK: call {{.*}}then
then();
// CHECK: call {{.*}}dtor
// CHECK: }
}
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