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From "Mikhail Fursov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5376) [drlvm][jit][opt][perf] new API magic for String.indexOf(String, int) method
Date Fri, 11 Jan 2008 14:59:34 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12558001#action_12558001
] 

Mikhail Fursov commented on HARMONY-5376:
-----------------------------------------

indexof-final.patch  was committed with revision 611195

I disabled this optimization in all modes except server-aggressive.

Please resubmit the patch that fixes EM64T reg.test problems.

> [drlvm][jit][opt][perf] new API magic for String.indexOf(String, int) method
> ----------------------------------------------------------------------------
>
>                 Key: HARMONY-5376
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5376
>             Project: Harmony
>          Issue Type: Improvement
>         Environment: IA32
>            Reporter: Dmitry Pronichkin
>            Assignee: Mikhail Fursov
>         Attachments: indexof-final.patch, indexof.patch
>
>
> String.indexOf(String, int) method is a very hot in different benchmarks. The new API
magic generates a strict assembly code to do the substring search and prefetching of String
objects and character arrays.

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