Method hints_for_segment

src/internal/hints.rs:180–191

Returns an iterator over all the fixed-register hints covered by the given live range segment.

(
        &self,
        value: Value,
        seg: LiveRangeSegment,
    )

    /// Returns an iterator over all the fixed-register hints covered by the
    /// given live range segment.
    pub fn hints_for_segment(
        &self,
        value: Value,
        seg: LiveRangeSegment,
    ) -> impl Iterator<Item = &Hint> + '_ {
        let start = HintKey::incoming(value, seg.from.inst());
        let end = HintKey::outgoing(value, seg.to.round_to_next_inst().inst());
        let from = self.hints.partition_point(|hint| hint.key < start);
        self.hints[from..]
            .iter()
            .take_while(move |hint| hint.key <= end)
    }

    /// Given a live range split, returns whether the left and right sides of
    /// the split still have a fixed register hint.