llvm-project

feb21e26 - [RISCV] Add SiFive X390 processor definition (#142517)

[RISCV] Add SiFive X390 processor definition (#142517) X390 is an in-order core designed for AI/ML workload, with VLEN=1024. https://www.sifive.com/cores/intelligence-x300-series Scheduling model will be added in a follow-up patch.