RFR: 8324974: JFR: EventCompilerPhase should be created as UNTIMED

[Denghui Dong]

On Tue, 30 Jan 2024 15:15:24 GMT, Denghui Dong <ddong at openjdk.org> wrote:

> Hi,
> 
> Please help review this fix.
> 
> CompilerEvent::PhaseEvent::post will set the _start_time of EventCompilerPhase, so EventCompilerPhase should be created as UNTIMED.
> 
> Thanks.

testing: jdk/jfr all passed. (release build)

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PR Comment: https://git.openjdk.org/jdk/pull/17632#issuecomment-1919172870