These bake in the existing set of RegClass values and are not flexible or scalable. Change-Id: I107460cd82960d96916d1644403b7635820045a0 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45226 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com> Tested-by: kokoro <noreply+kokoro@google.com>