[aarch64-port-dev ] git: openjdk/aarch64-port: master: 8186670: Implement _onSpinWait() intrinsic for AArch64

[Paul Hohensee]

Changeset: 6954b98f
Author:    Evgeny Astigeevich <eastig at amazon.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2021-11-11 22:23:35 +0000
URL:       https://git.openjdk.java.net/aarch64-port/commit/6954b98f8faf29b6c2d13687a7a94e83302bdd85

8186670: Implement _onSpinWait() intrinsic for AArch64

Reviewed-by: phh, aph

! src/hotspot/cpu/aarch64/aarch64.ad
! src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/globals_aarch64.hpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp
+ src/hotspot/cpu/aarch64/spin_wait_aarch64.hpp
! src/hotspot/cpu/aarch64/vm_version_aarch64.cpp
! src/hotspot/cpu/aarch64/vm_version_aarch64.hpp
+ test/hotspot/jtreg/compiler/onSpinWait/TestOnSpinWaitAArch64.java
+ test/hotspot/jtreg/compiler/onSpinWait/TestOnSpinWaitNoneAArch64.java
+ test/micro/org/openjdk/bench/java/lang/ThreadOnSpinWait.java
+ test/micro/org/openjdk/bench/java/lang/ThreadOnSpinWaitProducerConsumer.java
+ test/micro/org/openjdk/bench/java/lang/ThreadOnSpinWaitSharedCounter.java