forked from OSchip/llvm-project
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-unknown-linux-gnu -emit-llvm -std=c++20 \
|
|
// RUN: -O0 %s -o - | FileCheck %s
|
|
// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-unknown-linux-gnu -emit-llvm -std=c++20 \
|
|
// RUN: -fno-inline -O0 %s -o - | FileCheck %s
|
|
|
|
namespace std {
|
|
|
|
struct handle {};
|
|
|
|
struct awaitable {
|
|
bool await_ready() noexcept { return true; }
|
|
// CHECK-NOT: await_suspend
|
|
inline void __attribute__((__always_inline__)) await_suspend(handle) noexcept {}
|
|
bool await_resume() noexcept { return true; }
|
|
};
|
|
|
|
template <typename T>
|
|
struct coroutine_handle {
|
|
static handle from_address(void *address) noexcept { return {}; }
|
|
};
|
|
|
|
template <typename T = void>
|
|
struct coroutine_traits {
|
|
struct promise_type {
|
|
awaitable initial_suspend() { return {}; }
|
|
awaitable final_suspend() noexcept { return {}; }
|
|
void return_void() {}
|
|
T get_return_object() { return T(); }
|
|
void unhandled_exception() {}
|
|
};
|
|
};
|
|
} // namespace std
|
|
|
|
// CHECK-LABEL: @_Z3foov
|
|
// CHECK-LABEL: entry:
|
|
// CHECK: [[CAST0:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8*
|
|
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[CAST0]])
|
|
// CHECK: [[CAST1:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8*
|
|
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[CAST1]])
|
|
|
|
// CHECK: [[CAST2:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8*
|
|
// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* [[CAST2]])
|
|
// CHECK: [[CAST3:%[0-9]+]] = bitcast %"struct.std::awaitable"* %ref.tmp{{.*}} to i8*
|
|
// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* [[CAST3]])
|
|
void foo() { co_return; }
|
|
|
|
// Check that bar is not inlined even it's marked as always_inline.
|
|
|
|
// CHECK-LABEL: define {{.*}} void @_Z3bazv()
|
|
// CHECK: call void @_Z3barv(
|
|
__attribute__((__always_inline__)) void bar() {
|
|
co_return;
|
|
}
|
|
void baz() {
|
|
bar();
|
|
co_return;
|
|
}
|