RFR: 8347396: Efficient TypeFunc creations [v6]

[Dean Long]

On Tue, 3 Feb 2026 09:01:19 GMT, Harshit470250 <duke at openjdk.org> wrote:

>> This PR do similar changes done by [JDK-8330851](https://bugs.openjdk.org/browse/JDK-8330851) on the GC TypeFunc creation as suggested by [JDK-8347396](https://bugs.openjdk.org/browse/JDK-8347396). As discussed in [https://github.com/openjdk/jdk/pull/21782#discussion_r1906535686,](https://github.com/openjdk/jdk/pull/21782#discussion_r1906535686) I have put guard on the shenandoah gc specific part of the code.
>
> Harshit470250 has updated the pull request incrementally with four additional commits since the last revision:
> 
>  - remove import of barrierSetC2 from runtime
>  - make shenandoah types private
>  - move _clone_type_Type to BarrierSetC2
>  - remove whitespace

src/hotspot/share/opto/type.cpp line 737:

> 735: 
> 736: #if INCLUDE_SHENANDOAHGC
> 737:   ShenandoahBarrierSetC2::make_write_barrier_pre_Type();

How about replacing these 3 calls with a single call, something like ShenandoahBarrierSetC2::init()?  Can these functions then be made private?

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PR Review Comment: https://git.openjdk.org/jdk/pull/27279#discussion_r2761458562