Bug ID: JDK-8271959 [lworld] Convert Optional and VBS classes to value class

JDK-8271959 : [lworld] Convert Optional and VBS classes to value class

Type: Enhancement
Component: core-libs
Affected Version: repo-valhalla

Priority: P3
Status: Open
Resolution: Unresolved

Submitted: 2021-08-05
Updated: 2022-11-01

Versions (Unresolved/Resolved/Fixed)

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Other
repo-valhallaUnresolved

Related Reports

Relates :	JDK-8272041 - [lworld] CDS heap dump fails with primitive objects
Relates :	JDK-8272042 - java.util.ImmutableCollections$Map1 and MapN should not be @ValueBased
Relates :	JDK-8271234 - [lworld] InlineTypeBaseNode::merge_with fails with assert(i < _cnt)
Relates :	JDK-8272448 - [lworld] C2 compilation fails with "Bad graph detected in build_loop_late"
Relates :	JDK-8272290 - [lworld] Disable CDS if InlineTypePassFieldsAsArgs has changed

Comments

[~thartmann] thanks for disabling the optimization. This workaround works.
17-08-2021
I've disabled the corresponding optimization for now with JDK-8272511 because I'm suspecting this to be another mainline issue.
16-08-2021
I've verified that the failures are unrelated to JDK-8271954 and filed JDK-8272448.
13-08-2021
A few test/jdk/java/lang/invoke tests fail with the following assertion. It may be related to JDK-8271954. # Internal Error (/Users/mlchung/ws/valhalla/lworld-closed/open/src/hotspot/share/opto/loopnode.cpp:5343), pid=38260, tid=23555 # assert(false) failed: Bad graph detected in build_loop_late
09-08-2021