Out of curiosity, what in ARMv9 are you looking for that isn't either optional or already mandated in ARMv8.5? I'm actually not sure what ARMv9 additionally man

Out of curiosity, what in ARMv9 are you looking for that isn't either optional or already mandated in ARMv8.5? I'm actually not sure what ARMv9 additionally mandates over ARMv8.5... SVE/SVE2 is optional in ARMv9 [1], despite all the reporting claiming otherwise. [1] https://developer.arm.com/documentation/ddi0487/latest https://developer.arm.com/documentation/ddi0487/latest