JDK-8348972 : [lworld] C1/C2: Update Valhalla with UseCompactObjectHeaders for oop->klass load/stores
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: repo-valhalla
  • Priority: P3
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2025-01-29
  • Updated: 2025-05-21
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repo-valhallaUnresolved
Related Reports
Relates :  
JDK-8348568 - [lworld] Update Valhalla with UseCompactObjectHeaders for oop->klass load/stores
Description
C1/C2 part of JDK-8348568
Comments
I also disabled test/hotspot/jtreg/runtime/ErrorHandling/AccessZeroNKlassHitsProtectionZone.java, see "// TODO 8348568" in the test.
21-05-2025
Repro: java -XX:+EnableValhalla -XX:+UnlockExperimentalVMOptions -XX:+UseCompactObjectHeaders -version or... make exploded-test TEST=runtime/valhalla TEST_OPTS=VM_OPTIONS="-XX:+UnlockExperimentalVMOptions -XX:+UseCompactObjectHeaders" We don't have CI job failing on this just now
28-02-2025