[jdk21u-dev] RFR: 8353237: [AArch64] Incorrect result of VectorizedHashCode intrinsic on Cortex-A53

[Aleksey Shipilev]

Fixes Cortex A53 regression in 21.0.7. While the patch is fairly recent, it is also predicated on A53 "feature", so all other AArch64 code is not affected. We have seen customer reports that current 21.0.7 is broken without this patch on A53.

Testing:
 - [ ] Linux AArch64 server fastdebug, `all`

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Commit messages:
 - Backport 883e52aa105727f4bc852d1497e049b689695152

Changes: https://git.openjdk.org/jdk21u-dev/pull/1832/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1832&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8353237
  Stats: 14 lines in 2 files changed: 12 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1832.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1832/head:pull/1832

PR: https://git.openjdk.org/jdk21u-dev/pull/1832