x86/x86_64: Add rep_movs instructions

x86: This patch adds rep_movsb with tests
x86_64: This patch adds rep_movsb, rep_movsl with tests

Test: $ANDROID_HOST_OUT/nativetest{64}/art_compiler_host_tests/art_compiler_host_tests
Signed-off-by: Shalini Salomi Bodapati <shalini.salomi.bodapati@intel.com>
Change-Id: Ie49434c88e690007bdb7e773f746eae66b197574
6 files changed