harmony-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HARMONY-2247) [drlvm][jit][performance] System::arraycopy by 'rep move' instruction
Date Wed, 22 Nov 2006 14:56:04 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-2247?page=all ]

Alexey Varlamov resolved HARMONY-2247.

    Resolution: Fixed

Applied at r478177, please verify. Thanks!

> [drlvm][jit][performance] System::arraycopy by 'rep move' instruction
> ---------------------------------------------------------------------
>                 Key: HARMONY-2247
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2247
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>         Environment: ia32
>            Reporter: George Timoshenko
>         Assigned To: Alexey Varlamov
>         Attachments: arraycopy_rep_move_SVN.diff, ArraycopyTest.java
> Currenlty Jitrino::OPT instead of 'System::arraycopy' call generates a loop that copies
arrays with respective checks.
> The improvements is in replacing the loop by 'rep move' instruction which is available
on ia32.
> (This is possible as the instruction is now supported in Encoder. See the patch for HARMONY-2223)

This message is automatically generated by JIRA.
If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira


View raw message