[jira] Assigned: (HARMONY-3041) [drlvm][jit][ia32/intel64]A few constraints handling improvements in codegen

["Alexey Varlamov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Varlamov reassigned HARMONY-3041:
----------------------------------------

    Assignee: Alexey Varlamov

> [drlvm][jit][ia32/intel64]A few constraints handling improvements in codegen
> ----------------------------------------------------------------------------
>
>                 Key: HARMONY-3041
>                 URL: https://issues.apache.org/jira/browse/HARMONY-3041
>             Project: Harmony
>          Issue Type: Improvement
>          Components: DRLVM
>            Reporter: Vyacheslav Shakin
>         Assigned To: Alexey Varlamov
>         Attachments: 0001-drlvm-jit-Improved-constraints-handling.txt
>
>
> The changes introduce the following improvements:
> Before the patch, the 1- and 2- bytes copying was performed only through the memory and the patch fixes the problem.
> ConstraintsResolver now takes into account calls in cold blocks and splits operands around such calls which improves constraints imposed on such operands and leaves more freedom for register allocator.
> Also, a number of parameters introduced to ConstraintResolver which allows more tuning. Please refer to the ConstraintsResolver help for more details.
> 'build test' passed on both Windows2003/IA-32 and SuSE Linux/IA-32.

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