RFR: 8326983: Unused operands reported after JDK-8326135 [v4]

[kuaiwei]

> Remove all unused operands reported by adlc. I'm testing x86_64 and aarch64. So far no failure found in tier1.
> I tried to clean unused operands for all platform. A special case is immLRot2 in arm, it's not used, but appeared in many todo comments. So I keep it.

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

  1 check _disable_warnings in adlc 2 Fix error in arm_32.ad

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18075/files
  - new: https://git.openjdk.org/jdk/pull/18075/files/29514638..5028086a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18075&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18075&range=02-03

  Stats: 13 lines in 2 files changed: 4 ins; 0 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/18075.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18075/head:pull/18075

PR: https://git.openjdk.org/jdk/pull/18075