| 1 | // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm %s -o - -disable-llvm-passes | FileCheck %s |
| 2 | |
| 3 | #include "Inputs/coroutine.h" |
| 4 | |
| 5 | using namespace std::experimental; |
| 6 | |
| 7 | struct coro { |
| 8 | struct promise_type { |
| 9 | coro get_return_object(); |
| 10 | suspend_always initial_suspend(); |
| 11 | suspend_never final_suspend(); |
| 12 | void return_void(); |
| 13 | static void unhandled_exception(); |
| 14 | }; |
| 15 | }; |
| 16 | |
| 17 | extern "C" coro f(int) { co_return; } |
| 18 | // Verify that cleanup.dest.slot is eliminated in a coroutine. |
| 19 | // CHECK-LABEL: f( |
| 20 | // CHECK: call void @_ZNSt12experimental13coroutines_v113suspend_never12await_resumeEv( |
| 21 | // CHECK: %[[CLEANUP_DEST:.+]] = phi i32 [ 0, %{{.+}} ], [ 2, %{{.+}} ], [ 2, %{{.+}} ] |
| 22 | // CHECK: call i8* @llvm.coro.free( |
| 23 | // CHECK: switch i32 %cleanup.dest.slot.0, label %{{.+}} [ |
| 24 | // CHECK-NEXT: i32 0 |
| 25 | // CHECK-NEXT: i32 2 |
| 26 | // CHECK-NEXT: ] |
| 27 | |