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From "Aleksey Shipilev (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-3794) Minor code quality improvements: peephole and RA-related
Date Wed, 02 May 2007 08:50:15 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-3794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aleksey Shipilev updated HARMONY-3794:
--------------------------------------

    Comment: was deleted

> Minor code quality improvements: peephole and RA-related
> --------------------------------------------------------
>
>                 Key: HARMONY-3794
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3794
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>         Environment: Win 32/64
>            Reporter: Aleksey Shipilev
>            Priority: Minor
>         Attachments: HARMONY-3794.patch
>
>
> 1. "CMP reg, 0 -> TEST reg, reg" peephole optimization 
> 2. Breaking dependency on ECX while calling JIT helper for LockAndCompareExchange: 
>     replacing "LOCK CMPXCHG reg, ECX" with "LOCK CMPXCHG reg, reg".

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