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From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-2210) [drlvm][jit] unreachable nodes must be swept out after inliner
Date Wed, 22 Nov 2006 15:12:03 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-2210?page=all ]

Alexey Varlamov reassigned HARMONY-2210:

    Assignee: Alexey Varlamov

> [drlvm][jit] unreachable nodes must be swept out after inliner
> --------------------------------------------------------------
>                 Key: HARMONY-2210
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2210
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: George Timoshenko
>         Assigned To: Alexey Varlamov
>         Attachments: HARMONY-2210.diff, test.java
> inline pass of Jitrino.OPT::optimizer can produce unreachable nodes. (the testcase is
> some other passes can not work with such nodes in the CFG.
> Attached testcase breaks on DCE pass after inliner. (run with -Xem:opt ):
> java: /export/users2/gatimosh/HARMONY_SVN/trunk/working_vm/vm/jitrino/src/optimizer/deadcodeeliminator.cpp:554:
void Jitrino::markLiveInst(Jitrino::Inst*, Jitrino::InstDeque&, Jitrino::BitSet&,
Jitrino::BitSet&, uint8*, unsigned int, unsigned int): Assertion `def->getNode()' failed.
> It is not so easy to teach inliner not to create unreachables.
> UPD:
> reproducible with Jitrino _debug_ build only.
> Release one works fine as those unreachable nodes are being removed some stages later.

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