This adds the initial feature for the base RVY extension,
other extensions such as the hybrid mode will be added later.
RVY specification: https://riscv.github.io/riscv-cheri/
Co-authored-by: Jessica Clarke <jrtc27@jrtc27.com>
Co-authored-by: Petr Vesely <petr.vesely@codasip.com>
Pull Request: https://github.com/llvm/llvm-project/pull/176870
fc2230f574