Hello Erwam,
Yes, we have a bug tracking database for gcc build tools as well but unfortunately it's not public.
If you find any issue with powerpc-eabivle-gcc compiler please post it here on S32DS Community .
The best would be to attach a reproducible test case so we can reproduce it on our side - this helps us to resolve the issue much faster.
If your reproducible case contains some proprietary/confidential code you don't want to share with others please submit a support case:
How to submit a new question for NXP Support | NXP Community
Hope it helps.
Stan