error: unrecognizable insn:
(insn 239 238 240 25 (parallel [
            (set (reg:QI 504)
                (xor:QI (reg:QI 503)
                    (const_int 1 [0x1])))
            (clobber (reg:CC 17 flags))
        ]) -1 (nil)
    (nil))