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From "Simon.Zhou (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5826) [drlvm][jit][opt][performance] Magic for java.math.Multiplication.unsignedMultAdd2
Date Sat, 16 May 2009 08:54:45 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710086#action_12710086
] 

Simon.Zhou commented on HARMONY-5826:
-------------------------------------

Xiaoming, I am afraid this patch breaks the functionality of gc.generate_barrier option. When
I am using -XX:gc.generate_barrier=true, VM crashes when it startup (in vm_init2()).
I tried to trace the issue, then I find the error came from
java.net.URI$Helper.parseURI (URI.java: 240)
the assignment of  scheme=temp.substring(0, index); does not work, i.e. scheme is still NULL
after executing this line. 
This is all I got, but I am not sure what happened here exactly. would you like to check this
issue when you are convenient. Thanks!

> [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
>            Assignee: Chunrong Lai
>         Attachments: H5826-V2.patch, H5826-V3.patch, H5826-V4.patch, H5826-V5.patch.zip,
H5826-V6.zip, H5826-V7.zip, H5826-V8.zip, vm-jit-math-unsignedMultAdd2-magic-rc1.patch
>
>
> Implementation of magic for java.math.Multiplication.unsignedMultAdd2, extracted in HARMONY-5825.

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