RFR: 8344304: [s390x] ubsan: negation of -2147483648 cannot be represented in type 'int' [v3]

[Amit Kumar]

> fixes the issue reported by ubsan.

Amit Kumar has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'master' into ubsan_new
 - cover lir_add as well
 - updates instruction

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22456/files
  - new: https://git.openjdk.org/jdk/pull/22456/files/5bdf265a..bc70f092

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22456&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22456&range=01-02

  Stats: 30071 lines in 308 files changed: 24954 ins; 3122 del; 1995 mod
  Patch: https://git.openjdk.org/jdk/pull/22456.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22456/head:pull/22456

PR: https://git.openjdk.org/jdk/pull/22456