RFR: 8263200: Add -XX:StressCCP to CTW

[Vladimir Kozlov]

On Mon, 8 Mar 2021 18:05:46 GMT, Igor Ignatyev <iignatyev at openjdk.org> wrote:

> Hi all,
> 
> could you please review the tiny patch which adds `-XX:+StressCCP` flag to CTW testlibrary?
> 
> from JBS:
>> similar to StressLCM, StressGCM, and StressIGVN flags, recently introduced (by [JDK-8256535](https://bugs.openjdk.java.net/browse/JDK-8256535)) StressCCP can increase the probability to find compiler bugs, hence it makes sense to add this flag to CTW testlibrary.
> 
> testing:
>  - [ ] `test/hotspot/jtreg/applications/ctw/` 20 times on `{linux,windows,macosx}-x64` 
>  - [x] `testlibrary_tests/ctw/` on `macosx-x64`
> 
> Thanks,
> -- Igor

Good.

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Marked as reviewed by kvn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2877