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//@ compile-flags: -C opt-level=3
//@ aux-build: issue-72470-lib.rs
//@ edition:2018
//@ build-pass
// Regression test for issue #72470, using the minimization
// in https://github.com/jonas-schievink/llvm-error
extern crate issue_72470_lib;
use std::future::Future;
use std::pin::Pin;
use std::sync::Mutex;
use std::task::Poll::{Pending, Ready};
#[allow(dead_code)]
enum Msg {
A(Vec<()>),
B,
}
#[allow(dead_code)]
enum Out {
_0(Option<Msg>),
Disabled,
}
#[allow(unused_must_use)]
fn main() {
let mut rx = issue_72470_lib::unbounded_channel::<Msg>();
let entity = Mutex::new(());
issue_72470_lib::run(async move {
{
let output = {
let mut fut = rx.recv();
issue_72470_lib::poll_fn(|cx| {
loop {
let fut = unsafe { Pin::new_unchecked(&mut fut) };
let out = match fut.poll(cx) {
Ready(out) => out,
Pending => {
break;
}
};
#[allow(unused_variables)]
match &out {
Some(_msg) => {}
_ => break,
}
return Ready(Out::_0(out));
}
Ready(Out::_0(None))
})
.await
};
match output {
Out::_0(Some(_msg)) => {
entity.lock();
}
Out::_0(None) => unreachable!(),
_ => unreachable!(),
}
}
entity.lock();
});
}
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