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From "Maksim Ananjev (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-5464) [drlvm] vm hepler improvement for better performance
Date Wed, 06 Feb 2008 12:43:13 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Maksim Ananjev updated HARMONY-5464:
------------------------------------

    Attachment: xml_derby_fix_osr_enable_commented.patch

> [drlvm] vm hepler improvement for better performance
> ----------------------------------------------------
>
>                 Key: HARMONY-5464
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5464
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>         Environment: Hope it works everywhere
>            Reporter: Maksim Ananjev
>         Attachments: xml_derby_fix_osr_enable_commented.patch
>
>
> The issue deals with "load interface vtable support".  Returning zero address and not
generating NPE if the object is null is safe in terms of preserving program semantics(the
exception will be generatedon the first method invocation) and allows profitable code transformations
such as hoisting vm helper outside the loop body.
> The patch also includes osr_path enabling because it depends on this feature.

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