coro-newpm-pipeline.cpp
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// Tests that coroutine passes are added to and run by the new pass manager
// pipeline, at -O0 and above.
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm-bc -o /dev/null \
// RUN: -fexperimental-new-pass-manager -fdebug-pass-manager -fcoroutines-ts \
// RUN: -O0 %s 2>&1 | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm-bc -o /dev/null \
// RUN: -fexperimental-new-pass-manager -fdebug-pass-manager -fcoroutines-ts \
// RUN: -O1 %s 2>&1 | FileCheck %s
//
// CHECK: Starting llvm::Module pass manager run.
// CHECK: Running pass:{{.*}}CoroEarlyPass
//
// The first coro-split pass enqueues a second run of the entire CGSCC pipeline.
// CHECK: Starting CGSCC pass manager run.
// CHECK: Running pass: CoroSplitPass on (_Z3foov)
// CHECK: Running pass:{{.*}}CoroElidePass{{.*}} on {{.*}}_Z3foov{{.*}}
// CHECK: Finished CGSCC pass manager run.
//
// The second coro-split pass splits coroutine 'foo' into funclets
// 'foo.resume', 'foo.destroy', and 'foo.cleanup'.
// CHECK: Starting CGSCC pass manager run.
// CHECK: Running pass: CoroSplitPass on (_Z3foov)
// CHECK: Running pass:{{.*}}CoroElidePass{{.*}} on {{.*}}_Z3foov{{.*}}
// CHECK: Finished CGSCC pass manager run.
//
// CHECK: Running pass:{{.*}}CoroCleanupPass
// CHECK: Finished llvm::Module pass manager run.
namespace std {
namespace experimental {
struct handle {};
struct awaitable {
bool await_ready() noexcept { return true; }
void 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 experimental
} // namespace std
void foo() { co_return; }