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From "Geir Magnusson Jr (JIRA)" <j...@apache.org>
Subject [jira] Closed: (HARMONY-1754) [drlvm][jit] Refactoring of 'devirt' and 'unguard' optimizations in Jitrino.OPT
Date Tue, 24 Oct 2006 18:24:22 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-1754?page=all ]

Geir Magnusson Jr closed HARMONY-1754.

> [drlvm][jit] Refactoring of  'devirt' and 'unguard' optimizations in Jitrino.OPT
> --------------------------------------------------------------------------------
>                 Key: HARMONY-1754
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1754
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>            Reporter: Mikhail Fursov
>         Assigned To: Geir Magnusson Jr
>         Attachments: devirt.diff
> This patch contains the following changes:
> 1) All previously hardcoded parameters used by devirt and unguard optimization passes
could be set up from command line. 
> 2) Unguard pass is usable from now. Now it processes edge profile correctly. I hope we
add profile guided unguarding to the server path after this fix commited. It shows ~1-2% performance
improvement on some benchmarks.
> 3) Profile guided devirtualization of object (not interface) methods added.

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