Function rewrite_variable_name

src/optimise1/copyprop.rs:369–377

(name: &mut String, aliases: &AliasMap)

            if let Some(def) = instruction_def(instruction).and_then(|name| locals.id(name)) {
                bit_set_insert(&mut def_sets[index], def);
            }
        }

        for successor in super::reachability::get_block_successors(block) {
            if let Some(successor) = label_ids.get(successor.as_str()).copied() {
                successors[index].push(successor);
                predecessors[successor].push(index);
            }
        }
    }

    let mut live_in = vec![vec![0; word_count]; labels.len()];