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Posted to commits@harmony.apache.org by "Mikhail Fursov (JIRA)" <ji...@apache.org> on 2008/03/13 16:04:28 UTC
[jira] Resolved: (HARMONY-5595) [drlvm][jit][opt] Difference in
bc-mapping after translator
[ https://issues.apache.org/jira/browse/HARMONY-5595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mikhail Fursov resolved HARMONY-5595.
-------------------------------------
Resolution: Fixed
Committed revision r636777
> [drlvm][jit][opt] Difference in bc-mapping after translator
> -----------------------------------------------------------
>
> Key: HARMONY-5595
> URL: https://issues.apache.org/jira/browse/HARMONY-5595
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: All
> Reporter: Nikolay Kurtov
> Assignee: Mikhail Fursov
> Attachments: bcmap.diff, Test.java
>
>
> Discussion on mailing list:
> http://www.mail-archive.com/dev@harmony.apache.org/msg13158.html
> I compiled the same class with JET and OPT, and found a difference in bytecode-mapping
> One of branches of switch goes to this code:
> ;; 58) ILOAD_0
> ;; 59) BIPUSH 45
> ;; 61) IADD
> ;; 62) I2B
> ;; 63) ISTORE_1
> ....
> So, after the recompilation by OPT, the block should begin from bcOffset 58
> In OPT after translator I found in irdump the following block
> Block L5:
> Predecessors: ENTRY_L0
> Successors: L8
> I5:L5: bcmap:59
> I34:ldci4 #45 -) t14:int32
> I35:add t1, t14 -) t15:int32
> I36:convi1 t15 -) t16:int32
> I37:stvar t16 -) v1:int32
> ....
> The block begins from bcOffset 59
> I consider these values in JET and OPT should be equal.
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