[jdk21u-dev] RFR: 8336827: compiler/vectorization/TestFloat16VectorConvChain.java timeouts on ppc64 platforms after JDK-8335860 [v3]

[Goetz Lindenmaier]

> I backport this to fix test failures caused by backport of JDK-8333890.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Parts of 8345146 missing as that was downported earlier

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Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/1589/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/1589/files/8d3986ad..fd4b4cd2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1589&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1589&range=01-02

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1589.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1589/head:pull/1589

PR: https://git.openjdk.org/jdk21u-dev/pull/1589