tree d521d4fd4c45764e14e794e04ed7872fb15de33f
parent d8bc7899a97b85600e2e7ba12f2aec3d42fefc66
author Pau Cabre <pau.cabre@metempsy.com> 1541719815 +0100
committer Pau Cabre <pau.cabre@metempsy.com> 1542231864 +0000

cpu: Fixed ratio of pred to hyst bits for LTAGE Bimodal

The LTAGE paper states 1 hyst bit shared for 4 pred bits.
Made this ratio configurable use 4 by default.
Also changed the Bimodal structure to use two std::vector<bool> (one for
pred and one for hyst bits)

Change-Id: I6793e8e358be01b75b8fd181ddad50f259862d79
Signed-off-by: Pau Cabre <pau.cabre@metempsy.com>
Reviewed-on: https://gem5-review.googlesource.com/c/14120
Reviewed-by: Ilias Vougioukas <ilias.vougioukas@arm.com>
Reviewed-by: Sudhanshu Jha <sudhanshu.jha@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>