// MIR for `box_to_raw_mut` after SimplifyCfg-pre-optimizations

fn box_to_raw_mut(_1: &mut Box<i32>) -> *mut i32 {
    debug x => _1;
    let mut _0: *mut i32;
    let mut _2: std::boxed::Box<i32>;
    let mut _3: *const i32;

    bb0: {
        Retag([fn entry] _1);
        _2 = deref_copy (*_1);
        _3 = copy ((_2.0: std::ptr::Unique<i32>).0: std::ptr::NonNull<i32>) as *const i32 (Transmute);
        _0 = &raw mut (*_3);
        Retag([raw] _0);
        return;
    }
}
