JDK-8322547 : [lworld] Add support for larval bit preservation during de-optimization.
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: repo-valhalla
  • Priority: P3
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2023-12-20
  • Updated: 2025-07-21
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Other
repo-valhallaUnresolved
Related Reports
Duplicate :  
JDK-8322540 - [lworld] Missing value object state population during scalarization.
Relates :  
JDK-8239003 - [lworld] C2 should respect larval state when scalarizing
Description
- Currently larval state are not preserved during de-optimization.
- Append larval state to safe points while creating SafePointScalarObjectNodes
- Extend ObjectValue to capture larval state.
- Runtime support to propagate larval state to newly re-materialized object.
Comments
Converting this to a bug. https://github.com/openjdk/valhalla/pull/1482 excluded a test that should be re-enabled once the fix is in.
21-07-2025
Also, include suggestion from JDK-8322540
21-12-2023