1 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fcoroutines-ts \ 2 // RUN: -fexperimental-new-pass-manager -O0 %s -o - | FileCheck %s 3 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fcoroutines-ts \ 4 // RUN: -fexperimental-new-pass-manager -fno-inline -O0 %s -o - | FileCheck %s 5 6 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fcoroutines-ts \ 7 // RUN: -O0 %s -o - | FileCheck %s 8 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fcoroutines-ts \ 9 // RUN: -fno-inline -O0 %s -o - | FileCheck %s 10 11 namespace std { 12 namespace experimental { 13 14 struct handle {}; 15 16 struct awaitable { 17 bool await_ready() noexcept { return true; } 18 // CHECK-NOT: await_suspend 19 inline void __attribute__((__always_inline__)) await_suspend(handle) noexcept {} 20 bool await_resume() noexcept { return true; } 21 }; 22 23 template <typename T> 24 struct coroutine_handle { 25 static handle from_address(void *address) noexcept { return {}; } 26 }; 27 28 template <typename T = void> 29 struct coroutine_traits { 30 struct promise_type { 31 awaitable initial_suspend() { return {}; } 32 awaitable final_suspend() noexcept { return {}; } 33 void return_void() {} 34 T get_return_object() { return T(); } 35 void unhandled_exception() {} 36 }; 37 }; 38 } // namespace experimental 39 } // namespace std 40 41 // CHECK-LABEL: @_Z3foov 42 // CHECK-LABEL: entry: 43 // CHECK: [[CAST0:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* 44 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[CAST0]]) 45 // CHECK: [[CAST1:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* 46 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[CAST1]]) 47 48 // CHECK: [[CAST2:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* 49 // CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[CAST2]]) 50 // CHECK: [[CAST3:%[0-9]+]] = bitcast %"struct.std::experimental::awaitable"* %ref.tmp{{.*}} to i8* 51 // CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[CAST3]]) 52 void foo() { co_return; } 53