[jdk17u-dev] RFR: 8318562: Computational test more than 2x slower when AVX instructions are used

Tue Dec 5 18:44:59 UTC 2023

A small backport PR which fixes the performance regression with vcvt* instructions on AVX platforms.
Minor changes were required to resolve a conflict in macroAssembler_x86.cpp/hpp. The conflict was due to a change in locked_cmpxchgptr signature on mainline.

Please review.

Best Regards,
Sandhya

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Commit messages:
 - Backport 0881f2b0c43870ed10b1166d04cef9832e58629e

Changes: https://git.openjdk.org/jdk17u-dev/pull/2016/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2016&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8318562
  Stats: 246 lines in 4 files changed: 243 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2016.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2016/head:pull/2016

PR: https://git.openjdk.org/jdk17u-dev/pull/2016