{"ast_node_type":"other","tokens":[{"end":74,"kind":"keyword","start":0,"text":"mask_types.push(bx.context.new_field(None,"}]}
            mask_types.push(bx.context.new_field(None, bx.i32_type, "m"));
            let index = bx.context.new_rvalue_from_long(bx.i32_type, i as i64);
            let mask_value = bx.context.new_vector_access(None, mask, index).to_rvalue();