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Posted to commits@harmony.apache.org by "Alexey Varlamov (JIRA)" <ji...@apache.org> on 2007/09/04 05:20:57 UTC

[jira] Closed: (HARMONY-4702) [drlvm][jit][opt] type merge for stack vars in prepass is too restrictive

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

Alexey Varlamov closed HARMONY-4702.
------------------------------------

    Resolution: Fixed

Applied at r572291.

> [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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