On Wed, 16 Sep 2026 05:52:35 GMT, Jatin Bhateja <[email protected]> wrote:
>> Patch optimizes Vector.slice operation with constant index using x86 ALIGNR >> instruction. >> Intrinsification is performed using new hybrid call generator infrastructure >> added along with https://github.com/openjdk/jdk/pull/30876 which performs >> lazy intrinsification and in case of intrinsic failure which will happen for >> variable slice index will perform procedural inlining of fallback >> implementation to prevent call overhead and boxing penalties. The existing >> vector API-based slice implementation is now the fallback code. >> >> Vector API jtreg tests pass at various AVX levels. >> >> Following are the performance numbers of benchmark included with the patch >> over AVX512 and legacy target :- >> >> <img width="993" height="1053" alt="image" >> src="https://github.com/user-attachments/assets/9f5bbd6e-892d-4bfe-870f-070dabe32232"; >> /> >> <img width="996" height="341" alt="image" >> src="https://github.com/user-attachments/assets/7732ed97-131f-478b-8c50-67c6990f5ea1"; >> /> >> >> <img width="976" height="883" alt="image" >> src="https://github.com/user-attachments/assets/09f08034-3f1d-4acd-a2d9-dfb29c7d1513"; >> /> >> >> >> >> Kindly review and share your feedback. >> >> Best Regards, >> Jatin >> >> --------- >> - [x] I confirm that I make this contribution in accordance with the >> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). > > Jatin Bhateja has updated the pull request incrementally with one additional > commit since the last revision: > > Review comments resolution Looks fine, let me submit the tests, then. ------------- PR Review: https://git.openjdk.org/jdk/pull/24104#pullrequestreview-5232199819
