[jdk17u] RFR: 8273021: C2: Improve Add and Xor ideal optimizations

[Yi Yang]

8273021: C2: Improve Add and Xor ideal optimizations

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Commit messages:
 - Backport a73c06de2ac47033503189140c0f8ee61fcbceae

Changes: https://git.openjdk.java.net/jdk17u/pull/222/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=222&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273021
  Stats: 137 lines in 3 files changed: 136 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/222.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/222/head:pull/222

PR: https://git.openjdk.java.net/jdk17u/pull/222