// MIR for `main` before ElaborateDrops

fn main() -> () {
    let mut _0: ();
    let _1: std::boxed::Box<S>;
    let mut _2: usize;
    let mut _3: usize;
    let mut _4: *mut u8;
    let mut _5: std::boxed::Box<S>;
    let _6: ();
    let mut _7: std::boxed::Box<S>;
    scope 1 {
        debug x => _1;
    }
    scope 2 {
    }

    bb0: {
        StorageLive(_1);
        _2 = SizeOf(S);
        _3 = AlignOf(S);
        _4 = alloc::alloc::exchange_malloc(move _2, move _3) -> [return: bb1, unwind continue];
    }

    bb1: {
        StorageLive(_5);
        _5 = ShallowInitBox(move _4, S);
        (*_5) = S::new() -> [return: bb2, unwind: bb8];
    }

    bb2: {
        _1 = move _5;
        drop(_5) -> [return: bb3, unwind continue];
    }

    bb3: {
        StorageDead(_5);
        StorageLive(_6);
        StorageLive(_7);
        _7 = move _1;
        _6 = std::mem::drop::<Box<S>>(move _7) -> [return: bb4, unwind: bb6];
    }

    bb4: {
        StorageDead(_7);
        StorageDead(_6);
        _0 = const ();
        drop(_1) -> [return: bb5, unwind continue];
    }

    bb5: {
        StorageDead(_1);
        return;
    }

    bb6 (cleanup): {
        drop(_7) -> [return: bb7, unwind terminate (panic in a destructor during cleanup)];
    }

    bb7 (cleanup): {
        drop(_1) -> [return: bb9, unwind terminate (panic in a destructor during cleanup)];
    }

    bb8 (cleanup): {
        drop(_5) -> [return: bb9, unwind terminate (panic in a destructor during cleanup)];
    }

    bb9 (cleanup): {
        resume;
    }
}