{"ast_node_type":"variable","tokens":[{"end":99,"kind":"keyword","start":0,"text":"let"}]}
        let mask_type = self.context.new_vector_type(mask_element_type, new_mask_num_units as u64);
        let new_mask_num_units = std::cmp::max(mask_num_units, vec_num_units);
        let mask = self.context.new_rvalue_from_vector(self.location, mask_type, &mask_elements);