[lworld] RFR: 8373375: [lworld] Remove Unsafe.make/finishPrivateBuffer

[Tobias Hartmann]

On Mon, 2 Feb 2026 23:34:04 GMT, Chen Liang <liach at openjdk.org> wrote:

> WIP, replacing make/finishPrivateBuffer with flat array operations, yet to figure out how to ensure UseArrayFlattening is always on...

src/hotspot/share/opto/graphKit.cpp line 3585:

> 3583:   const Type* obj_type = _gvn.type(obj);
> 3584:   if (obj_type->is_inlinetypeptr() && !obj_type->maybe_null() && klass_ptr_type->klass_is_exact() && obj_type->inline_klass() == klass_ptr_type->exact_klass(true)) {
> 3585:     // TODO remnant to support old makePrivateBuffer generic cast, we can probably remove this now

I think this can do. Let me verify and get back to you.

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PR Review Comment: https://git.openjdk.org/valhalla/pull/2018#discussion_r2767384913