49 lines
2.0 KiB
C++
49 lines
2.0 KiB
C++
// fixme: the following line is added to cleanup bots, will be removed in weeks.
|
|
// RUN: rm -f %S/coroutine.ll
|
|
// RUN: %clang_cc1 -mllvm -emptyline-comment-coverage=false -triple x86_64-unknown-linux-gnu -fcoroutines-ts -std=c++14 -emit-llvm -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping %s -o - | FileCheck %s
|
|
|
|
namespace std::experimental {
|
|
template <typename... T>
|
|
struct coroutine_traits;
|
|
|
|
template <class Promise = void>
|
|
struct coroutine_handle {
|
|
coroutine_handle() = default;
|
|
static coroutine_handle from_address(void *) noexcept { return {}; }
|
|
};
|
|
template <>
|
|
struct coroutine_handle<void> {
|
|
static coroutine_handle from_address(void *) { return {}; }
|
|
coroutine_handle() = default;
|
|
template <class PromiseType>
|
|
coroutine_handle(coroutine_handle<PromiseType>) noexcept {}
|
|
};
|
|
} // namespace std::experimental
|
|
|
|
struct suspend_always {
|
|
bool await_ready() noexcept;
|
|
void await_suspend(std::experimental::coroutine_handle<>) noexcept;
|
|
void await_resume() noexcept;
|
|
};
|
|
|
|
template <>
|
|
struct std::experimental::coroutine_traits<int, int> {
|
|
struct promise_type {
|
|
int get_return_object();
|
|
suspend_always initial_suspend();
|
|
suspend_always final_suspend() noexcept;
|
|
void return_value(int);
|
|
};
|
|
};
|
|
|
|
// CHECK-LABEL: _Z2f1i:
|
|
int f1(int x) { // CHECK-NEXT: File 0, [[@LINE]]:15 -> [[@LINE+8]]:2 = #0
|
|
if (x > 42) { // CHECK-NEXT: File 0, [[@LINE]]:7 -> [[@LINE]]:13 = #0
|
|
// CHECK-NEXT: Branch,File 0, [[@LINE-1]]:7 -> [[@LINE-1]]:13 = #1, (#0 - #1)
|
|
++x; // CHECK-NEXT: Gap,File 0, [[@LINE-2]]:14 -> [[@LINE-2]]:15 = #1
|
|
} else { // CHECK-NEXT: File 0, [[@LINE-3]]:15 -> [[@LINE]]:4 = #1
|
|
co_return x + 42; // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:4 -> [[@LINE-1]]:10 = (#0 - #1)
|
|
} // CHECK-NEXT: File 0, [[@LINE-2]]:10 -> [[@LINE]]:4 = (#0 - #1)
|
|
co_return x; // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:4 -> [[@LINE]]:3 = #1
|
|
} // CHECK-NEXT: File 0, [[@LINE-1]]:3 -> [[@LINE]]:2 = #1
|