48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
// fixme: the following line is added to cleanup bots, will be removed in weeks.
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// RUN: rm -f %S/coroutine.ll
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// 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
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namespace std::experimental {
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template <typename... T>
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struct coroutine_traits;
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template <class Promise = void>
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struct coroutine_handle {
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coroutine_handle() = default;
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static coroutine_handle from_address(void *) noexcept { return {}; }
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};
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template <>
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struct coroutine_handle<void> {
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static coroutine_handle from_address(void *) { return {}; }
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coroutine_handle() = default;
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template <class PromiseType>
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coroutine_handle(coroutine_handle<PromiseType>) noexcept {}
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};
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} // namespace std::experimental
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struct suspend_always {
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bool await_ready() noexcept;
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void await_suspend(std::experimental::coroutine_handle<>) noexcept;
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void await_resume() noexcept;
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};
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template <>
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struct std::experimental::coroutine_traits<int, int> {
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struct promise_type {
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int get_return_object();
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suspend_always initial_suspend();
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suspend_always final_suspend() noexcept;
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void return_value(int);
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};
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};
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// CHECK-LABEL: _Z2f1i:
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int f1(int x) { // CHECK-NEXT: File 0, [[@LINE]]:15 -> [[@LINE+7]]:2 = #0
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if (x > 42) { // CHECK-NEXT: File 0, [[@LINE]]:7 -> [[@LINE]]:13 = #0
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++x; // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:14 -> [[@LINE-1]]:15 = #1
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} else { // CHECK-NEXT: File 0, [[@LINE-2]]:15 -> [[@LINE]]:4 = #1
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co_return x + 42; // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:4 -> [[@LINE-1]]:10 = (#0 - #1)
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} // CHECK-NEXT: File 0, [[@LINE-2]]:10 -> [[@LINE]]:4 = (#0 - #1)
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co_return x; // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:4 -> [[@LINE]]:3 = #1
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} // CHECK-NEXT: File 0, [[@LINE-1]]:3 -> [[@LINE]]:2 = #1
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