On Tue, 3 Jun 2025 14:54:16 GMT, Jatin Bhateja <[email protected]> wrote:
> Hi all, > > This patch optimizes SIMD kernels making heavy use of broadcasted inputs > through following reassociating ideal transformations. > > > VectorOperation (VectorBroadcast INP1, VectorBroadcast INP2) => > VectorBroadcast (ScalarOpration INP1, INP2) > > VectorOperation (VectorBroadcast INP1) (VectorOperation (VectorBroadcast > INP2) INP3) => > VectorOperation INP3 (VectorOperation > (VectorBroadcast INP1) (VectorBroadcast INP2)) > > > The idea is to push broadcasts across the vector operation and replace the > vector with an equivalent, cheaper scalar variant. Currently, patch handles > most common vector operations. > > Following are the performance number of benchmark included with this patch on > latest generation x86 targets:- > > **AMD Turin (2.1GHz)** > <img width="1122" height="355" alt="image" > src="https://github.com/user-attachments/assets/3f5087bf-0e14-4c56-b0c2-3d23253bad54"; > /> > > **Intel Granite Rapids (2.1GHz)** > <img width="1105" height="325" alt="image" > src="https://github.com/user-attachments/assets/c8481f86-4db2-4c4e-bd65-51542c59fe63"; > /> > > > > 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). This pull request has now been integrated. Changeset: 7ff7efd5 Author: Jatin Bhateja <[email protected]> URL: https://git.openjdk.org/jdk/commit/7ff7efd59de98b29357c1f5bb424e90639b51be1 Stats: 2357 lines in 7 files changed: 2335 ins; 14 del; 8 mod 8358521: Optimize vector operations by reassociating broadcasted inputs Reviewed-by: epeter, vlivanov, xgong ------------- PR: https://git.openjdk.org/jdk/pull/25617
