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Posted to commits@harmony.apache.org by "Alexey Varlamov (JIRA)" <ji...@apache.org> on 2007/05/24 14:58:16 UTC
[jira] Closed: (HARMONY-3784) [drlvm][jit][jet] Incorrect support
of vmmagic types and object fields in JET compiler
[ https://issues.apache.org/jira/browse/HARMONY-3784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Varlamov closed HARMONY-3784.
------------------------------------
Resolution: Fixed
Applied fix at r541293, thanks!
> [drlvm][jit][jet] Incorrect support of vmmagic types and object fields in JET compiler
> --------------------------------------------------------------------------------------
>
> Key: HARMONY-3784
> URL: https://issues.apache.org/jira/browse/HARMONY-3784
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Mikhail Fursov
> Assigned To: Alexey Varlamov
> Attachments: jet.magics, mfields.diff
>
>
> VMMagic implementation in JET compiler was initially prototyped but was never actually used/tested except several particular places in class initializers (DRLVM server mode uses JET compiler for <clinits>)
> JET has several problems with magic implementation today:
> 1) Magic types are reported to GC. So if GC happend during class initialization DRLVM will fail
> 2) Magic types are incorrectly stored to fields on EM64T platform with compressed references mode enabled.
> The only scenario affected today is GCv5 server mode support for EM64T platform where field of Address type is used.
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