RFR: 8361353: [PPC64] C2: Add nodes UMulHiL, CmpUL3, UMinV, UMaxV, NegVI [v2]

[David Briemann]

> Implement more nodes for ppc that exist on other platforms.

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

  add >= power9 check for NegVI

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/26115/files
  - new: https://git.openjdk.org/jdk/pull/26115/files/d19e627d..00f37d7a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26115&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26115&range=00-01

  Stats: 5 lines in 2 files changed: 4 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/26115.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26115/head:pull/26115

PR: https://git.openjdk.org/jdk/pull/26115