{"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"\"sse41.round.ss\""}]}
                    "sse41.round.ss" => "__builtin_ia32_roundss",
                    "sse41.round.sd" => "__builtin_ia32_roundsd",
                    "sse42.crc32.32.16" => "__builtin_ia32_crc32hi",