[jdk21u-dev] RFR: 8332920: C2: Partial Peeling is wrongly applied for CmpU with negative limit [v3]

[Martin Doerr]

> Originally clean backport of [JDK-8332920](https://bugs.openjdk.org/browse/JDK-8332920).
> Unfortunately, `-XX:CompileOnly` is not available in 21u, so I had to adapt the new test compiler/loopopts/TestPartialPeelAtUnsignedTestsNegativeLimit.java (see 2nd and 3rd commit). Tier 1-4 have passed.

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

  Use separate CompileCommands.

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/728/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/728/files/3d13b5aa..7a33ed3b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=728&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=728&range=01-02

  Stats: 8 lines in 1 file changed: 5 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/728.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/728/head:pull/728

PR: https://git.openjdk.org/jdk21u-dev/pull/728