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Posted to commits@harmony.apache.org by "Alexey Petrenko (JIRA)" <ji...@apache.org> on 2006/12/27 11:04:23 UTC
[jira] Assigned: (HARMONY-2686) [drlvm][jit][opt] Jitrino doesn't
remove unnesassary conditional jumps after constants compare
[ http://issues.apache.org/jira/browse/HARMONY-2686?page=all ]
Alexey Petrenko reassigned HARMONY-2686:
----------------------------------------
Assignee: Alexey Petrenko
> [drlvm][jit][opt] Jitrino doesn't remove unnesassary conditional jumps after constants compare
> ----------------------------------------------------------------------------------------------
>
> Key: HARMONY-2686
> URL: http://issues.apache.org/jira/browse/HARMONY-2686
> Project: Harmony
> Issue Type: Improvement
> Components: DRLVM
> Reporter: Nikolay Sidelnikov
> Assigned To: Alexey Petrenko
> Attachments: branchTranslator.patch, BranchTranslator_fixed.patch, BranchTranslator_v1.2.patch, BranchTranslator_v1.2.patch, BranchTranslator_v1.4.patch
>
>
> There are number of cases when Jitrino is able to remove a branch. For example:
> 1)
> MOV eax, 1
> CMP eax, 0
> JZ
> 2)
> MOV eax, 1
> JMP L1
> MOV eax, 0
> L1: CMP eax, 0
> JZ
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