[pypy-dev] [pypy-commit] pypy default: Hack to ensure that ll_arraycopy gets a proper effectinfo.write_descrs_arrays

[Maciej Fijalkowski]

On Fri, Sep 30, 2011 at 6:15 PM, Hakan Ardo <hakan at debian.org> wrote:
> Hi,
> is there a better way to fix this? The same kind of issue might arise elsewhere?

Make sure that raw_memcopy has the correct effect on analyzer?

>
>> Author: Hakan Ardo <hakan at debian.org>
>> Branch:
>> Changeset: r47722:bf3f65e2b1c2
>> Date: 2011-09-30 19:48 +0200
>> http://bitbucket.org/pypy/pypy/changeset/bf3f65e2b1c2/
>>
>> Log:  Hack to ensure that ll_arraycopy gets a proper
>>       effectinfo.write_descrs_arrays
>>
>> diff --git a/pypy/rlib/rgc.py b/pypy/rlib/rgc.py
>> --- a/pypy/rlib/rgc.py
>> +++ b/pypy/rlib/rgc.py
>> @@ -143,6 +143,10 @@
>>      from pypy.rpython.lltypesystem.lloperation import llop
>>      from pypy.rlib.objectmodel import keepalive_until_here
>>
>> +    # XXX: Hack to ensure that we get a proper effectinfo.write_descrs_arrays
>> +    if length > 0:
>> +        dest[dest_start] = source[source_start]
>> +
>>      # supports non-overlapping copies only
>>      if not we_are_translated():
>>          if source == dest:
>
>
> --
> Håkan Ardö
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