rust/tests/mir-opt/issue_41110.rs

// skip-filecheck
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY

// check that we don't emit multiple drop flags when they are not needed.

// EMIT_MIR issue_41110.main.ElaborateDrops.diff
fn main() {
    let x = S.other(S.id());
}

// no_mangle to make sure this gets instantiated even in an executable.
#[no_mangle]
// EMIT_MIR issue_41110.test.ElaborateDrops.diff
pub fn test() {
    let u = S;
    let mut v = S;
    drop(v);
    v = u;
}

struct S;
impl Drop for S {
    fn drop(&mut self) {}
}

impl S {
    fn id(self) -> Self {
        self
    }
    fn other(self, s: Self) {}
}