RFR: 8276546: [IR Framework] Whitelist and ignore CompileThreshold

[Nils Eliasson]

On Tue, 9 Nov 2021 13:21:56 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

> This patch whitelists `CompileThreshold` and ignores it if passed as JTreg VM/Java option flag to a test. The reason to do this is that our CI executes `-XX:-TieredCompilation` in combination with `CompileThreshold` and therefore IR matching will not be performed (because `CompileThreshold` is not whitelisted). This patch changes this.
> 
> Setting `CompileThreshold` with `TestFramework::addFlags/runWithFlags()` will normally apply the flag.
> 
> Thanks,
> Christian

Looks good.

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Marked as reviewed by neliasso (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/6312