not defined builtin function

[yoss0902]

Hi,

I am trying to run the kernels on the XpulpNN core. While running a test, I discovered that some built-in functions are not defined anywhere. For example, the following built-in functions: _builtin_pulp_mlupdatespr_v3, _builtin_pulp_mlsdotsp16_v3.

The kernel uses these functions, but as I mentioned, they are not defined anywhere. I downloaded the SDK, but these functions are missing there as well.

I would greatly appreciate any help on this matter.

Thanks in advance!