On Fri, 18 Sep 2026 22:05:08 GMT, Mohamed Issa <[email protected]> wrote:
> It turns out the 2-step FP16 to integral conversion process is usually more > beneficial on platforms that support AVX10.2 instructions. This is mainly due > to the reduced instruction count and automatic special case handling (e.g., > NaN). With that in mind, the changes in this PR go back to the original > approach when the AVX10.2 vectorized path is detected in the C2 compiler. > There are also some updates to the JTREG tests and JMH benchmarks. > > The JTREG test listed below was used to verify correctness with > `-XX:-UseSuperWord` and `-XX:+UseSuperWord` JVM options applied. All > modifications and tests used [OpenJDK > v28-b15](https://github.com/openjdk/jdk/releases/tag/jdk-28%2B15) as the > baseline build. > > 1. > `jtreg:test/hotspot/jtreg/compiler/vectorapi/TestFloat16ToIntegralConv.java` > > --------- > - [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: 3f150a4a Author: Mohamed Issa <[email protected]> Committer: Jatin Bhateja <[email protected]> URL: https://git.openjdk.org/jdk/commit/3f150a4ae4253d52fb2503e1760d86a5718169b7 Stats: 47 lines in 4 files changed: 36 ins; 0 del; 11 mod 8392723: Restore Float16 to integral conversion behavior on AVX10.2 targets Reviewed-by: sviswanathan, mhaessig, sparasa, jbhateja ------------- PR: https://git.openjdk.org/jdk/pull/32957
