1 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm %s -o - -disable-llvm-passes | FileCheck %s
3 #include "Inputs/coroutine.h"
5 using namespace std::experimental;
10 constexpr nothrow_t nothrow = {};
12 } // end namespace std
14 // Required when get_return_object_on_allocation_failure() is defined by
16 void* operator new(__SIZE_TYPE__ __sz, const std::nothrow_t&) noexcept;
17 void operator delete(void* __p, const std::nothrow_t&) noexcept;
20 template <class RetObject>
22 RetObject get_return_object();
23 suspend_always initial_suspend();
24 suspend_never final_suspend();
26 static void unhandled_exception();
30 using promise_type = promise_type<coro>;
36 // Verify that the NRVO is applied to the Gro object.
37 // CHECK-LABEL: define void @_Z1fi(%struct.coro* noalias sret %agg.result, i32)
39 // CHECK: %call = call i8* @_Znwm(
40 // CHECK-NEXT: br label %[[CoroInit:.*]]
42 // CHECK: {{.*}}[[CoroInit]]:
43 // CHECK: store i1 false, i1* %gro.active
44 // CHECK: call void @{{.*get_return_objectEv}}(%struct.coro* sret %agg.result
45 // CHECK-NEXT: store i1 true, i1* %gro.active
50 template <class RetObject>
51 struct promise_type_with_on_alloc_failure {
52 static RetObject get_return_object_on_allocation_failure();
53 RetObject get_return_object();
54 suspend_always initial_suspend();
55 suspend_never final_suspend();
57 static void unhandled_exception();
61 using promise_type = promise_type_with_on_alloc_failure<coro_two>;
62 coro_two(coro_two const&);
67 // Verify that the NRVO is applied to the Gro object.
68 // CHECK-LABEL: define void @_Z1hi(%struct.coro_two* noalias sret %agg.result, i32)
71 // CHECK: %call = call i8* @_ZnwmRKSt9nothrow_t
72 // CHECK-NEXT: %[[CheckNull:.*]] = icmp ne i8* %call, null
73 // CHECK-NEXT: br i1 %[[CheckNull]], label %[[InitOnSuccess:.*]], label %[[InitOnFailure:.*]]
75 // CHECK: {{.*}}[[InitOnFailure]]:
76 // CHECK-NEXT: call void @{{.*get_return_object_on_allocation_failureEv}}(%struct.coro_two* sret %agg.result
77 // CHECK-NEXT: br label %[[RetLabel:.*]]
79 // CHECK: {{.*}}[[InitOnSuccess]]:
80 // CHECK: store i1 false, i1* %gro.active
81 // CHECK: call void @{{.*get_return_objectEv}}(%struct.coro_two* sret %agg.result
82 // CHECK-NEXT: store i1 true, i1* %gro.active
84 // CHECK: [[RetLabel]]:
85 // CHECK-NEXT: ret void