[jdk21u-dev] RFR: 8333248: VectorGatherMaskFoldingTest.java failed when maximum vector bits is 64 [v2]

[sophia-guo]

> Hi,  I would like to backport[ 8333248](https://bugs.openjdk.org/browse/JDK-8333248) to jdk21u.  As [JDK-8325520](https://bugs.openjdk.org/browse/JDK-8325520) was also backported to 21 so the test now fails on risc-v there.

sophia-guo has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into 8333248-backport-9b0a5c5c
 - Backport 9b0a5c5cd056262fab99525e9260762b617152a3

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/1100/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/1100/files/7db718cb..12a6731e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1100&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1100&range=00-01

  Stats: 17914 lines in 415 files changed: 13838 ins; 1406 del; 2670 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1100.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1100/head:pull/1100

PR: https://git.openjdk.org/jdk21u-dev/pull/1100