void diffLastJava(int reps) {
    for (int i = 0; i < reps; ++i) {
      if (javaImpl.compare(ba3, ba4) == 0) {
        throw new Error(); // deoptimization
      }
    }
  }

  @Benchmark
  void diffLastUnsafe(int reps) {
    for (int i = 0; i < reps; ++i) {
      if (unsafeImpl.compare(ba3, ba4) == 0) {
        throw new Error(); // deoptimization
      }
    }
  }

  /*
  try {