RFR: 8286302: Port JEP 425 to PPC64 [v3]

[Richard Reingruber]

On Thu, 10 Nov 2022 03:44:16 GMT, Fei Yang <fyang at openjdk.org> wrote:

> Hi, I also tested this on my Linux RISC-V platform which has support for virtual threads. Test results look good. Thanks.
> 
>     * Tier1-4 tests
> 
>     * Tests under test/jdk/java/lang/Thread/virtual with extra options "-XX:+VerifyContinuations -XX:+VerifyStack"
> 
>     * Non-trivial benchmark workloads, like Renaissance, SPECjvm2008, SPECjbb2015, etc.

Great. Thanks for the testing.

Richard.

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PR: https://git.openjdk.org/jdk/pull/10961