git: openjdk/jdk-sandbox: shen-late-barriers: GC barriers benchmarks

[duke]

Changeset: fe9c2b5d
Branch: shen-late-barriers
Author:    Aleksey Shipilev <aleksey at shipilev.net>
Date:      2025-11-11 18:02:03 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/fe9c2b5d30fe1c97a0d0faad685458123e6e8240

GC barriers benchmarks

+ test/micro/org/openjdk/bench/vm/gc/barriers/arraycopy/RefArray.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/cas/KnownExpectNull.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/cas/KnownUpdateNull.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/cas/RefFailure.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/cas/RefSuccess.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/IntArray.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/MultipleIntFields.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/MultipleObjects.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/MultipleRefFields.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/RefArray.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/Single.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/reads/SingleVolatile.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/writes/MultipleKnownNulls.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/writes/MultipleZeroes.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/writes/Single.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/writes/SingleKnownNull.java
+ test/micro/org/openjdk/bench/vm/gc/barriers/writes/SingleVolatile.java