RFR: 8302857: Generational ZGC: enable correctness barrier elision tests on all platforms

[Fei Yang]

On Mon, 20 Feb 2023 12:28:47 GMT, Roberto Castañeda Lozano <rcastanedalo at openjdk.org> wrote:

> This changeset splits the recent barrier elision tests added by [JDK-8301584](https://bugs.openjdk.org/browse/JDK-8301584) and extended by [JDK-8301769](https://bugs.openjdk.org/browse/JDK-8301769) into correctness tests (do not elide necessary barriers) and effectiveness tests (do elide unnecessary barriers), and enables the former on all platforms that support ZGC, following the [discussion on JDK-8301769](https://github.com/openjdk/zgc/pull/13).
> 
> {@TheRealMDoerr, @RealFYang}: could you please check whether the updated tests pass on the other ZGC-supporting platforms?
> 
> **Testing:** re-run the updated tests (x64 and aaarch64; linux, windows, and macosx; release and debug mode)

Hi, this passed with fastdebug build on linux-riscv:

Running test 'jtreg:./test/hotspot/jtreg/compiler/gcbarriers/TestZGCBarrierElision.java'
Passed: compiler/gcbarriers/TestZGCBarrierElision.java#id0
Test results: passed: 1

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PR: https://git.openjdk.org/zgc/pull/14