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 | |