RFR: 8357304: [PPC64] C2: Implement MinV, MaxV and Reduction nodes [v2]

[David Linus Briemann]

> The following nodes are added:
> - MinV / MaxV
> - AndV / OrV / XorV
> - MinReductionV / MaxReductionV / AndReductionV / OrReductionV / XorReductionV
> - AddReductionVI / MulReductionVI

David Linus Briemann has updated the pull request incrementally with one additional commit since the last revision:

  remove TEMP_DEF effect for dst

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Changes:
  - all: https://git.openjdk.org/jdk/pull/25318/files
  - new: https://git.openjdk.org/jdk/pull/25318/files/e3c5f9f1..8126d0db

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25318&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25318&range=00-01

  Stats: 33 lines in 2 files changed: 0 ins; 12 del; 21 mod
  Patch: https://git.openjdk.org/jdk/pull/25318.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25318/head:pull/25318

PR: https://git.openjdk.org/jdk/pull/25318