{"ast_node_type":"variable","tokens":[{"end":100,"kind":"keyword","start":0,"text":"let"}]}
        let minus_ones = self.context.new_rvalue_from_vector(self.location, cond_type, &minus_ones);
        let minus_ones = vec![self.context.new_rvalue_from_int(element_type, -1); num_units];
        let inverted_masks = masks ^ minus_ones;