RFR: 8346174: UMAX/UMIN are missing from XXXVector::reductionOperations [v2]

[Paul Sandoz]

> Add functional support for unsigned min/max reductions on vectors.
> 
> We also need to ensure that the `reductionCoerced` intrinsic bails out when there is no reduction operation for the lanewise operation. When intrinsic support is added for integral vectors this will still be the case for floating point vectors.

Paul Sandoz has updated the pull request incrementally with one additional commit since the last revision:

  Merge checks

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22741/files
  - new: https://git.openjdk.org/jdk/pull/22741/files/b21e79d7..7b06675f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22741&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22741&range=00-01

  Stats: 8 lines in 1 file changed: 1 ins; 6 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22741.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22741/head:pull/22741

PR: https://git.openjdk.org/jdk/pull/22741