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From "Mikhail Fursov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-4452) [drlvm][jit] write barrier in OPT doesn't catch all reference fields updates
Date Tue, 14 Aug 2007 12:45:31 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-4452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12519660

Mikhail Fursov commented on HARMONY-4452:

The reason of Jitrino.OPT's fail in generational mode is recently implemented arraycopy optimization.
to disable it.

I propose closing this issue without fixes to 'arraycopy' optimization after JET patch is
We have HARMONY-3584 related to 'arraycopy' refactoring and I will ask there to make it compatible
with generational mode.

> [drlvm][jit]  write barrier in OPT  doesn't catch all reference fields updates  
> --------------------------------------------------------------------------------
>                 Key: HARMONY-4452
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4452
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: windows and linux
>            Reporter: tingpeng wu
>            Assignee: Mikhail Fursov
>         Attachments: jet.diff
> DRLVM could not  run Decapo.chart using gcv5 with gen mode now. The reason is some array's
elements are written, but those slots are not remembered by write barrier.  We suspect that
some operation on array in OPT doesn't invoke write barrier where it should.

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