commit c2d5c707a2cfeaaafcf8f5d7e5193dd2d5c59592
author Vladimir Marko <vmarko@google.com> Fri Nov 13 15:28:33 2020 +0000
committer Vladimir Marko <vmarko@google.com> Tue Nov 17 09:11:29 2020 +0000
tree 5d978a37a409b8801e6e00178a05c0857cef58ef
parent cfc6e9d55263d49e2d8d19a4a3a7d38567bb4fb9

arm64: Implement VarHandle GetAndBitwiseOp intrinsics.

Using benchmarks provided by
    https://android-review.googlesource.com/1420959
on blueline little cores with fixed frequency 1420800:
                                      before after
GetAndBitwiseOrStaticFieldInt         23.917 0.026
GetAndBitwiseOrFieldInt               26.828 0.026
GetAndBitwiseOrAcquireStaticFieldInt  23.908 0.025
GetAndBitwiseOrAcquireFieldInt        26.822 0.026
GetAndBitwiseOrReleaseStaticFieldInt  23.906 0.026
GetAndBitwiseOrReleaseFieldInt        26.831 0.026
GetAndBitwiseXorStaticFieldInt        23.829 0.026
GetAndBitwiseXorFieldInt              26.784 0.026
GetAndBitwiseXorAcquireStaticFieldInt 23.841 0.025
GetAndBitwiseXorAcquireFieldInt       26.788 0.026
GetAndBitwiseXorReleaseStaticFieldInt 23.835 0.026
GetAndBitwiseXorReleaseFieldInt       26.788 0.026
GetAndBitwiseAndStaticFieldInt        23.874 0.026
GetAndBitwiseAndFieldInt              26.797 0.026
GetAndBitwiseAndAcquireStaticFieldInt 23.871 0.025
GetAndBitwiseAndAcquireFieldInt       26.792 0.026
GetAndBitwiseAndReleaseStaticFieldInt 23.865 0.026
GetAndBitwiseAndReleaseFieldInt       26.786 0.026

Test: Covered by existing test 712-varhandle-invocations.
Test: testrunner.py --target --64 --optimizing
Bug: 71781600
Change-Id: I8263f6b1b125c46190da06a9a05e60335bf69992