[lworld] Integrated: 8259556: [lworld] Various C2 crashes with -XX:-ScalarizeInlineTypes

Tobias Hartmann thartmann at openjdk.java.net
Tue Jan 12 08:37:23 UTC 2021

This fixes several issues in C2 with -XX:-ScalarizeInlineTypes and improves robustness of the tests to be able to run with more stress options. We still need a good heuristic to decide when **not** to scalarize inline types (for example, if there are too many (oop) fields), this will be addressed by [JDK-8215479](https://bugs.openjdk.java.net/browse/JDK-8215479).

Best regards,


Commit messages:
 - 8259556: [lworld] Various C2 crashes with -XX:-ScalarizeInlineTypes

Changes: https://git.openjdk.java.net/valhalla/pull/306/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=306&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259556
  Stats: 14 lines in 9 files changed: 3 ins; 1 del; 10 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/306.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/306/head:pull/306

PR: https://git.openjdk.java.net/valhalla/pull/306

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