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Posted to commits@harmony.apache.org by "Dmitry Pronichkin (JIRA)" <ji...@apache.org> on 2007/10/24 09:21:51 UTC
[jira] Updated: (HARMONY-3584) [drlvm][jit][opt] arraycopy folding
implementation in guarded manner
[ https://issues.apache.org/jira/browse/HARMONY-3584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitry Pronichkin updated HARMONY-3584:
---------------------------------------
Attachment: arraycopy.patch
Arraycopy.patch contains high-level and low-level optimization passes, intinsics elimination and a bug with 8bit immediates fix.
> [drlvm][jit][opt] arraycopy folding implementation in guarded manner
> --------------------------------------------------------------------
>
> Key: HARMONY-3584
> URL: https://issues.apache.org/jira/browse/HARMONY-3584
> Project: Harmony
> Issue Type: Sub-task
> Components: DRLVM
> Reporter: George Timoshenko
> Assignee: Mikhail Fursov
> Priority: Minor
> Attachments: arraycopy.patch, arraycopy_pass.patch, intrinsic_patch.patch
>
>
> the feature (arraycopy call replacement) can be done in the guarded manner. When the classes of the arrays are being checked at runtime.
> (It is not obvious if it gives a performance effect or not).
> when this approach (guarded arraycopy call "inlining") is being implemented this optimisation should be moved out from the translator and inserted (before inliner) into the HLO path as a separate optimisation.
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