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From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-3063) [drlvm][jit] ArrayCopyRepMove does not work on EM64T
Date Tue, 27 Feb 2007 04:39:05 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-3063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12476068
] 

Alexey Varlamov commented on HARMONY-3063:
------------------------------------------

Confirmed, I observe 1-2% improvement on the microbenchmark, and up to 5% boost on SPECjbb2005
in client mode.
Will integrate with ON by default.

> [drlvm][jit] ArrayCopyRepMove does not work on EM64T
> ----------------------------------------------------
>
>                 Key: HARMONY-3063
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3063
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: EM64T
>            Reporter: George Timoshenko
>         Assigned To: Alexey Varlamov
>         Attachments: arraycopy_rep_move_em64t_default_OFF.patch, arraycopy_rep_move_em64t_enabling.patch,
ArraycopyTest_2.java
>
>
> The optimisation crashes on EM64T. In particular SPECjbb2005 fils with enabled genArrayCopyRepMove
switch.

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