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Posted to commits@harmony.apache.org by "Alexei Kaigorodov (JIRA)" <ji...@apache.org> on 2006/10/25 11:45:18 UTC
[jira] Created: (HARMONY-1959) HLO static path removes code that
can produce exceptions if it supposed as dead
HLO static path removes code that can produce exceptions if it supposed as dead
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Key: HARMONY-1959
URL: http://issues.apache.org/jira/browse/HARMONY-1959
Project: Harmony
Issue Type: Bug
Components: DRLVM
Environment: all ia32 based platforms
Reporter: Alexei Kaigorodov
Priority: Minor
If result of expression "new int[n]" is not used, the expression is considered as dead code and is deleted, regardless of possible exceptions like Out of Memory and Negative Array Size.
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[jira] Updated: (HARMONY-1959) HLO static path removes code that
can produce exceptions if it supposed as dead
Posted by "Alexei Kaigorodov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-1959?page=all ]
Alexei Kaigorodov updated HARMONY-1959:
---------------------------------------
Attachment: Test.java
This simple test illustrates the problem.
> HLO static path removes code that can produce exceptions if it supposed as dead
> -------------------------------------------------------------------------------
>
> Key: HARMONY-1959
> URL: http://issues.apache.org/jira/browse/HARMONY-1959
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: all ia32 based platforms
> Reporter: Alexei Kaigorodov
> Priority: Minor
> Attachments: Test.java
>
>
> If result of expression "new int[n]" is not used, the expression is considered as dead code and is deleted, regardless of possible exceptions like Out of Memory and Negative Array Size.
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[jira] Updated: (HARMONY-1959) HLO static path removes code that
can produce exceptions if it supposed as dead
Posted by "Alexei Kaigorodov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-1959?page=all ]
Alexei Kaigorodov updated HARMONY-1959:
---------------------------------------
Attachment: patch2bug1959
The solution is to mark IR instructions like Op_NewArray as able to throw exceptions. This prevent dead code eliminator from deleting such instructions.
> HLO static path removes code that can produce exceptions if it supposed as dead
> -------------------------------------------------------------------------------
>
> Key: HARMONY-1959
> URL: http://issues.apache.org/jira/browse/HARMONY-1959
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: all ia32 based platforms
> Reporter: Alexei Kaigorodov
> Priority: Minor
> Attachments: patch2bug1959, Test.java
>
>
> If result of expression "new int[n]" is not used, the expression is considered as dead code and is deleted, regardless of possible exceptions like Out of Memory and Negative Array Size.
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