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From "Xiaoming Gu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5826) [drlvm][jit][opt][performance] Magic for java.math.Multiplication.unsignedMultAdd2
Date Thu, 09 Oct 2008 08:28:44 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638224#action_12638224
] 

Xiaoming Gu commented on HARMONY-5826:
--------------------------------------

With some testing, I couldn't get any improvement on crypto.rsa in r699565 (actually performance
is degraded a little with this patch). It seems current JIT generates better code in common
way than in magic way.

> [drlvm][jit][opt][performance] Magic for java.math.Multiplication.unsignedMultAdd2
> ----------------------------------------------------------------------------------
>
>                 Key: HARMONY-5826
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5826
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>            Reporter: Aleksey Shipilev
>         Attachments: vm-jit-math-unsignedMultAdd2-magic-rc1.patch
>
>
> Implementation of magic for java.math.Multiplication.unsignedMultAdd2, extracted in HARMONY-5825.

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