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From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-4702) [drlvm][jit][opt] type merge for stack vars in prepass is too restrictive
Date Mon, 03 Sep 2007 04:59:19 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-4702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Alexey Varlamov reassigned HARMONY-4702:

    Assignee: Alexey Varlamov

> [drlvm][jit][opt] type merge for stack vars in prepass is too restrictive
> -------------------------------------------------------------------------
>                 Key: HARMONY-4702
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4702
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: All
>            Reporter: Pavel Ozhdikhin
>            Assignee: Alexey Varlamov
>         Attachments: prepass_opt_20070830.patch
> VarIncarnations of stack variables of different types are not merged at joining edges,
even if their types are compatible. This may lead to incorrect promotion of the stack var
to variable at some CFG point and to the crash during the compilation. The bug was caught
on a complex Jython scenario with dynamic class generation.

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