On Tue, 6 Jun 2023 21:29:49 GMT, Paul Sandoz <psan...@openjdk.org> wrote:
> I believe instead of changing the guards we can change the implementation of > the static methods on the concrete static VHs to call `asDirect()` (lets also > add `@ForceInline` on `asDirect`), since `linkToStatic` will pass the args to > the static method described by the member name (since the lazy and direct VH > handles share the same var form). > > That has the nice effect of pushing the complexity closer to where it is > needed. Its subtle but i think can be explained. Thereby we can reduce the > memory footprint for subsequent access modes. Perhaps we can even "zero" out > the MH cache on initialization? Is this aimed at decreasing long-term invocation cost or the initial invocation cost? FYI long-term invocation is already efficient enough; if this is for initial invocation, which can potentially bypass costly MH construction, I recommend creating an alternative method to `asDirect` for the purpose to be called and casted by X-VarHandle implementations. ------------- PR Comment: https://git.openjdk.org/jdk/pull/13821#issuecomment-1579550628
