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From Naveen Neelakantam <neela...@uiuc.edu>
Subject Fwd: [jira] Updated: (HARMONY-3222) assertion fires with DaCapo eclipse (jitrino built in debug)
Date Tue, 27 Feb 2007 00:48:16 GMT
Fix provided.

Should I be emailing the dev list when I fix something?  Or should  
the issue just be marked as resolved?

I'm not really clear on the protocol (and yes, I read http:// 
harmony.apache.org/issue_resolution_guideline.html).  :-)

Thanks,
Naveen

Begin forwarded message:

> From: "Naveen Neelakantam (JIRA)" <jira@apache.org>
> Date: February 26, 2007 6:41:05 PM CST
> To: neelakan@uiuc.edu
> Subject: [jira] Updated: (HARMONY-3222) assertion fires with DaCapo  
> eclipse (jitrino built in debug)
>
>
>      [ https://issues.apache.org/jira/browse/HARMONY-3222? 
> page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
>
> Naveen Neelakantam updated HARMONY-3222:
> ----------------------------------------
>
>     Attachment: imm_cast_bug.patch
>
> This patch (imm_cast_bug) fixes the issue.  The problem is with  
> casting.  Basically the following was occuring:
>
> in32 cast to uint32 cast to int64
>
> As a result, negative constants would become large positive constants:
>
> -1 cast to 4294967295 cast to 4294967295
>
> If this casted value was used to dereference an array it would be  
> multipled by the array element size (let's say 4),  which would  
> exceed the maximum value that could fit in a 32-bit integer:
>
> 4294967295* 4 = 17179869180
>
>> assertion fires with DaCapo eclipse (jitrino built in debug)
>> ------------------------------------------------------------
>>
>>                 Key: HARMONY-3222
>>                 URL: https://issues.apache.org/jira/browse/ 
>> HARMONY-3222
>>             Project: Harmony
>>          Issue Type: Bug
>>          Components: DRLVM
>>         Environment: RHEL4 update 4, core 2 duo, gcc 4.1.0
>>            Reporter: Naveen Neelakantam
>>         Attachments: imm_cast_bug.patch
>>
>>
>> To see the assert, jitrino must be built in debug mode and the - 
>> Xem:server option must be used
>>> java -showversion -Xem:server -jar dacapo-2006-10-MR1.jar eclipse
>> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache  
>> Software Foundation or its licensors, as applicable.
>> java version "1.5.0"
>> pre-alpha : not complete or compatible
>> svn = r510120, (Feb 21 2007), Linux/ia32/gcc 4.1.0, debug build
>> http://incubator.apache.org/harmony
>> ===== DaCapo eclipse starting =====
>> <setting up workspace...>
>> <creating  
>> projects............................................................. 
>> .>
>> <running tests at level 0...>
>> <performing build tests...>
>>         org.apache.ant (not open) opening cleaning building
>>         org.junit (not open) opening cleaning building
>> java: /home/zilles/neelakan/Sandbox/Harmony/test/working_vm/vm/ 
>> jitrino/src/codegenerator/ia32/Ia32Inst.cpp:92: void  
>> Jitrino::Ia32::Opnd::setMemOpndSubOpnd 
>> (Jitrino::Ia32::MemOpndSubOpndKind, Jitrino::Ia32::Opnd*):  
>> Assertion `(so != MemOpndSubOpndKind_Displacement) || (2147483647  
>> >= opnd->getImmValue() && (-2147483647 - 1) <= opnd->getImmValue

>> ())' failed.
>
> -- 
> This message is automatically generated by JIRA.
> -
> You can reply to this email to add a comment to the issue online.
>


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