Function rustc_data_structures::graph::dominators::compress

source ยท 
fn compress(
    ancestor: &mut IndexSlice<PreorderIndex, PreorderIndex>,
    lastlinked: Option<PreorderIndex>,
    semi: &IndexSlice<PreorderIndex, PreorderIndex>,
    label: &mut IndexSlice<PreorderIndex, PreorderIndex>,
    v: PreorderIndex,
)