Mailing-List: contact commits-help@harmony.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@harmony.apache.org
Message-ID: <31010992.1174545872522.JavaMail.jira@brutus>
Date: Wed, 21 Mar 2007 23:44:32 -0700 (PDT)
From: "Alexey Varlamov (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Assigned: (HARMONY-3405) [drlvm][jit][opt] redundant
 reservation of r13-r14-r15 for each method on EM64T
In-Reply-To: <6378889.1173966309389.JavaMail.jira@brutus>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/HARMONY-3405?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Varlamov reassigned HARMONY-3405:
----------------------------------------

    Assignee: Alexey Varlamov

> [drlvm][jit][opt] redundant reservation of r13-r14-r15 for each method on EM64T
> -------------------------------------------------------------------------------
>
>                 Key: HARMONY-3405
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3405
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>         Environment: EM64T
>            Reporter: George Timoshenko
>         Assigned To: Alexey Varlamov
>         Attachments: r13-r14-r15.patch, r13-r14-r15_v2.patch
>
>
> Jitrino.OPT starts each method from 
> push r13
> push r14
> push r15
> and finishes it with
> pop r13
> pop r14
> pop r15
> r15 is not use by OPT at all
> r13 is used for some specific in codegen, that can be fixed
> r14 is used for transforming immediate calls to register form when target offset does not fit inot 32 bits
> but push-pop of r14 can be ommitted when a method does not contain any direct calls

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