| // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm %s -o - -disable-llvm-passes | FileCheck %s |
| |
| #include "Inputs/coroutine-exp-namespace.h" |
| |
| using namespace std::experimental; |
| |
| struct coro { |
| struct promise_type { |
| coro get_return_object(); |
| suspend_always initial_suspend(); |
| suspend_never final_suspend() noexcept; |
| void return_void(); |
| static void unhandled_exception(); |
| }; |
| }; |
| |
| extern "C" coro f(int) { co_return; } |
| // Verify that cleanup.dest.slot is eliminated in a coroutine. |
| // CHECK-LABEL: f( |
| // CHECK: %[[INIT_SUSPEND:.+]] = call i8 @llvm.coro.suspend( |
| // CHECK-NEXT: switch i8 %[[INIT_SUSPEND]], label |
| // CHECK-NEXT: i8 0, label %[[INIT_READY:.+]] |
| // CHECK-NEXT: i8 1, label %[[INIT_CLEANUP:.+]] |
| // CHECK-NEXT: ] |
| // CHECK: %[[CLEANUP_DEST0:.+]] = phi i32 [ 0, %[[INIT_READY]] ], [ 2, %[[INIT_CLEANUP]] ] |
| |
| // CHECK: %[[FINAL_SUSPEND:.+]] = call i8 @llvm.coro.suspend( |
| // CHECK-NEXT: switch i8 %{{.*}}, label %coro.ret [ |
| // CHECK-NEXT: i8 0, label %[[FINAL_READY:.+]] |
| // CHECK-NEXT: i8 1, label %[[FINAL_CLEANUP:.+]] |
| // CHECK-NEXT: ] |
| |
| // CHECK: call void @_ZNSt12experimental13coroutines_v113suspend_never12await_resumeEv( |
| // CHECK: %[[CLEANUP_DEST1:.+]] = phi i32 [ 0, %[[FINAL_READY]] ], [ 2, %[[FINAL_CLEANUP]] ] |
| // CHECK: %[[CLEANUP_DEST2:.+]] = phi i32 [ %[[CLEANUP_DEST0]], %{{.+}} ], [ %[[CLEANUP_DEST1]], %{{.+}} ], [ 0, %{{.+}} ] |
| // CHECK: call i8* @llvm.coro.free( |
| // CHECK: switch i32 %[[CLEANUP_DEST2]], label %{{.+}} [ |
| // CHECK-NEXT: i32 0 |
| // CHECK-NEXT: i32 2 |
| // CHECK-NEXT: ] |
