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From "Evgueni Brevnov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5486) [drlvm][jit][opt] On-stack allocation feature
Date Tue, 12 Feb 2008 10:16:07 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12568038#action_12568038
] 

Evgueni Brevnov commented on HARMONY-5486:
------------------------------------------

LEA - is load effective address.

We don't need tau cause it doesn't depend on any other instruction.

It would be wondefull if we could move any instruction out of the loops. Unfortunately, it's
not always possible. We need it in HLO since it''s planned to use in HLO optimizations in
future.

I don't think that alloca is not informative. You can try ask google about it :-)

Evgueni



> [drlvm][jit][opt] On-stack allocation feature 
> ----------------------------------------------
>
>                 Key: HARMONY-5486
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5486
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>         Environment: All
>            Reporter: Evgueni Brevnov
>         Attachments: alloca.patch
>
>
> Here is a new feature which allows to allocate space on the stack. It can be used to
implement new optimization. Non-escaped objects can be allocated on the stack but managed
heap.
> Thanks
> Evgueni

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