Hello,
I am sorry for the long delay, but I am still waiting for Diab compiler license or at least some evaluation version. I have no experience with diab compiler included in S32 Design Studio, so I have to try it on my side. Please be patient, I will try it as soon as possible.
PS: Please look at the following post. We have already solved some issue with GreenHills compiler, so maybe it could help you.
https://community.nxp.com/message/850385
Regards,
Martin