[jdk21u-dev] RFR: 8332904: ubsan ppc64le: c1_LIRGenerator_ppc.cpp:581:21: runtime error: signed integer overflow: 9223372036854775807 + 1 cannot be represented in type 'long int'

[Matthias Baesken]

8332904: ubsan ppc64le: c1_LIRGenerator_ppc.cpp:581:21: runtime error: signed integer overflow: 9223372036854775807 + 1 cannot be represented in type 'long int'

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Commit messages:
 - Backport 9b64ece514cf941ebc727991d97c43453d8a488d

Changes: https://git.openjdk.org/jdk21u-dev/pull/679/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=679&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8332904
  Stats: 5 lines in 2 files changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/679.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/679/head:pull/679

PR: https://git.openjdk.org/jdk21u-dev/pull/679