RFR: 8349686: [s390x] C1: Improve Class.isInstance intrinsic

Amit Kumar amitkumar at openjdk.org
Mon Feb 10 02:33:28 UTC 2025


s390x implementation for Class.isInstance intrinsic. 

Tier1 test on release & fastdebug vm are clean with flag: `-XX:-UseSecondarySupersCache -XX:+UseSecondarySupersTable -XX:+VerifySecondarySupers -XX:+StressSecondarySupers`. 

Benchmark results will be updated soon.

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Commit messages:
 - is_instance_of_id intrinsification for s390

Changes: https://git.openjdk.org/jdk/pull/23535/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23535&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8349686
  Stats: 87 lines in 3 files changed: 79 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/23535.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23535/head:pull/23535

PR: https://git.openjdk.org/jdk/pull/23535


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