RFR: 8317976: Optimize SIMD sort for AMD Zen 4

Rohit Arul Raj rraj at openjdk.org
Fri Mar 14 10:55:11 UTC 2025


This change enables optimized SIMD sort for AMD Zen 4 (AVX2) & Zen 5 (AVX512).

JTREG Tests: Completed Tier1 & Tier2 tests on Zen4 & Zen5 - No Regressions.

Attaching ArraySort performance data for Zen4 & Zen5.
[Zen4-ArraySort-Data.txt](https://github.com/user-attachments/files/19245831/Zen4-ArraySort-Data.txt)
[Zen5-ArraySort-Data.txt](https://github.com/user-attachments/files/19245833/Zen5-ArraySort-Data.txt)

-------------

Commit messages:
 - JDK-8317976: Enable optimized SIMD sort for AMD Zen 4 & Zen 5

Changes: https://git.openjdk.org/jdk/pull/24053/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24053&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8317976
  Stats: 9 lines in 2 files changed: 5 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/24053.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24053/head:pull/24053

PR: https://git.openjdk.org/jdk/pull/24053


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