On Wed, 21 Aug 2024 20:11:05 GMT, Markus Grönlund <mgron...@openjdk.org> wrote:
> Greetings, > > Please help review this change set that implements C2 intrinsics for > jdk.internal.vm.Continuation.pin() and jdk.internal.vm.Continuation.unpin(). > > This work is a consequence of > [JDK-8338417](https://bugs.openjdk.org/browse/JDK-8338417), which required us > to introduce explicit pin constructs for Virtual threads in a relatively > performance-sensitive path. > > Testing: jdk_jfr, loom testing > > Comment: I changed the type of the ContinuationEntry::_pin_count field from > uint to uin32_t to make the size explicit and to access it uniformly from the > intrinsic code using T_INT. > > Thanks > Markus This pull request has now been integrated. Changeset: fead3cf5 Author: Markus Grönlund <mgron...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/fead3cf54130e3ab10f94a94dfbd382e4cb1e597 Stats: 109 lines in 9 files changed: 105 ins; 0 del; 4 mod 8338745: Intrinsify Continuation.pin() and Continuation.unpin() Reviewed-by: kvn ------------- PR: https://git.openjdk.org/jdk/pull/20664