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From "Pavel Ozhdikhin (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-2084) [drlvm][jit][opt] Jitrino.OPT inliner can cause native SOE exception for some large methods
Date Wed, 22 Aug 2007 16:58:31 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-2084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavel Ozhdikhin updated HARMONY-2084:
-------------------------------------

    Attachment: updated-2084.patch

The updated patch introduces CFG node limit for helper inliner as well. Please review and
commit.

> [drlvm][jit][opt] Jitrino.OPT inliner can cause native SOE exception for some large methods
> -------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-2084
>                 URL: https://issues.apache.org/jira/browse/HARMONY-2084
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Mikhail Fursov
>            Assignee: Mikhail Fursov
>            Priority: Minor
>         Attachments: 2084-regtest.patch, 2084.patch, Test.java, updated-2084.patch
>
>
> The inliner in Jitrino.OPT compiler stops inlining if bytecode size of the current method
is > some threshold.
> Sometimes (for synchronized methods) the bytecode size is small, but the size of the
resulted IR is very large. As the result Inliner can produce very large linear IR graphs that
 cause SOE in recursive algorithms like DFS
> The proposal is to add one more threshold to inliner: stop inlining if the number of
nodes in IR is greater then some const.

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