Method get_value_labels

cranelift/codegen/src/machinst/lower.rs:913–931

(&'a self, val: Value, depth: usize)

    }

    fn get_value_labels<'a>(&'a self, val: Value, depth: usize) -> Option<&'a [ValueLabelStart]> {
        if let Some(ref values_labels) = self.f.dfg.values_labels {
            debug_assert!(self.f.dfg.value_is_real(val));
            trace!(
                "get_value_labels: val {} -> {:?}",
                val,
                values_labels.get(&val)
            );
            match values_labels.get(&val) {
                Some(&ValueLabelAssignments::Starts(ref list)) => Some(&list[..]),
                Some(&ValueLabelAssignments::Alias { value, .. }) if depth < 10 => {
                    self.get_value_labels(value, depth + 1)
                }
                _ => None,
            }
        } else {
            None
        }
    }

    fn emit_value_label_marks_for_value(&mut self, val: Value, allow_alias: bool) {
        let regs = self.value_regs[val];