RFR: 8330851: C2: More efficient TypeFunc creation

[Vladimir Ivanov]

On Sat, 16 Nov 2024 05:05:12 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> Is there some arena-specific check that exists, which could be used here ?

`_type_arena != &_Compile_types` on current `Compile` should reliably detect when shared type dictionary is being populated.

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PR Comment: https://git.openjdk.org/jdk/pull/21782#issuecomment-2484041505