commit a3fe0452f6972218fce5aacd81ced3dc20ea482d
author Ulya Trafimovich <skvadrik@google.com> Mon Sep 06 16:53:56 2021 +0100
committer Treehugger Robot <treehugger-gerrit@google.com> Mon Oct 11 15:11:52 2021 +0000
tree bd6b748011c13a25fa31755f8ec27b170cb09999
parent 492649b718eed0c5834766b8a49ccbe9d86cf49a

x86_64: Implement VarHandle.get{,Acquire,Opaque,Volatile} for arrays.

Benchmarks improvements (using benchmarks provided by
https://android-review.googlesource.com/1420959):

  benchmark                              before   after
  -----------------------------------------------------
  VarHandleGetArrayElementInt            2.725    0.002
  VarHandleGetArrayElementString         2.778    0.003

Bug: 71781600
Test: lunch aosp_cf_x86_64_phone-userdebug \
  && art/test.py --host -r -t 712-varhandle-invocations --64
Test: Repeat with ART_USE_READ_BARRIER=false.
Test: Repeat with ART_HEAP_POISONING=true.
Change-Id: Ie9c6cef4ef3cf459cbfebbc17d1f449c489ec357