git: openjdk/mobile: 8242449: AArch64: r27 can be allocated in CompressedOops mode

[duke]

Changeset: f51088e2
Author:    Kuai Wei <kuaiwei.kw at alibaba-inc.com>
Committer: Pengfei Li <pli at openjdk.org>
Date:      2020-04-20 09:40:43 +0000
URL:       https://git.openjdk.java.net/mobile/commit/f51088e2

8242449: AArch64: r27 can be allocated in CompressedOops mode

Reviewed-by: aph, xliu

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp