Function frame_value_width

src/lower2/optimise2.rs:1649–1654

(value: &FrameValue)

            let old_slot = u16::try_from(old_slot).ok()?;
            range
                .filter(|_| {
                    old_slot >= fixed_prefix_slots && !pinned_local_slots.contains(&old_slot)
                })
                .map(|range| (old_slot, range))
        })
        .collect();
    intervals.sort_by_key(|(old_slot, range)| (range.first, range.last, *old_slot));

    let mut active = BinaryHeap::<Reverse<(usize, u16, u16)>>::new();