81 lines · cpp
1// RUN: %clang_cc1 -disable-llvm-optzns -std=c++20 \2// RUN: -triple=x86_64 -dwarf-version=4 -debug-info-kind=limited \3// RUN: -emit-llvm -o - %s | \4// RUN: FileCheck %s --implicit-check-not=DILocalVariable5 6namespace std {7template <typename... T> struct coroutine_traits;8 9template <class Promise = void> struct coroutine_handle {10 coroutine_handle() = default;11 static coroutine_handle from_address(void *) noexcept;12};13template <> struct coroutine_handle<void> {14 static coroutine_handle from_address(void *) noexcept;15 coroutine_handle() = default;16 template <class PromiseType>17 coroutine_handle(coroutine_handle<PromiseType>) noexcept;18};19} // namespace std20 21struct suspend_always {22 bool await_ready() noexcept;23 void await_suspend(std::coroutine_handle<>) noexcept;24 void await_resume() noexcept;25};26 27template <typename... Args> struct std::coroutine_traits<void, Args...> {28 struct promise_type {29 void get_return_object() noexcept;30 suspend_always initial_suspend() noexcept;31 suspend_always final_suspend() noexcept;32 void return_void() noexcept;33 promise_type();34 ~promise_type() noexcept;35 void unhandled_exception() noexcept;36 };37};38 39// TODO: Not supported yet40struct CopyOnly {41 int val;42 CopyOnly(const CopyOnly &) noexcept;43 CopyOnly(CopyOnly &&) = delete;44 ~CopyOnly();45};46 47struct MoveOnly {48 int val;49 MoveOnly(const MoveOnly &) = delete;50 MoveOnly(MoveOnly &&) noexcept;51 ~MoveOnly();52};53 54struct MoveAndCopy {55 int val;56 MoveAndCopy(const MoveAndCopy &) noexcept;57 MoveAndCopy(MoveAndCopy &&) noexcept;58 ~MoveAndCopy();59};60 61void consume(int, int, int) noexcept;62 63void f_coro(int val, MoveOnly moParam, MoveAndCopy mcParam) {64 consume(val, moParam.val, mcParam.val);65 co_return;66}67 68// CHECK: ![[SP:[0-9]+]] = distinct !DISubprogram(name: "f_coro", linkageName: "_Z6f_coroi8MoveOnly11MoveAndCopy"69// CHECK: !{{[0-9]+}} = !DILocalVariable(name: "val", arg: 1, scope: ![[SP]], file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}})70// CHECK: !{{[0-9]+}} = !DILocalVariable(name: "moParam", arg: 2, scope: ![[SP]], file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}})71// CHECK: !{{[0-9]+}} = !DILocalVariable(name: "mcParam", arg: 3, scope: ![[SP]], file: !{{[0-9]+}}, line: {{[0-9]+}}, type: !{{[0-9]+}})72// CHECK: !{{[0-9]+}} = !DILocalVariable(name: "__promise",73 74// CHECK: ![[INIT:[0-9]+]] = distinct !DISubprogram(linkageName: "_Z6f_coroi8MoveOnly11MoveAndCopy.__await_suspend_wrapper__init"75// CHECK: !{{[0-9]+}} = !DILocalVariable(arg: 1, scope: ![[INIT]]76// CHECK: !{{[0-9]+}} = !DILocalVariable(arg: 2, scope: ![[INIT]]77 78// CHECK: ![[FINAL:[0-9]+]] = distinct !DISubprogram(linkageName: "_Z6f_coroi8MoveOnly11MoveAndCopy.__await_suspend_wrapper__final"79// CHECK: !{{[0-9]+}} = !DILocalVariable(arg: 1, scope: ![[FINAL]]80// CHECK: !{{[0-9]+}} = !DILocalVariable(arg: 2, scope: ![[FINAL]]81