[PATCH, x86] Use vector moves in memmove expanding

[H.J. Lu]

On Wed, May 15, 2013 at 5:47 AM, Michael Zolotukhin
<michael.v.zolotukhin@gmail.com> wrote:
> Hi HJ,
>> You use Pmode as the largest integer mode.  Is word_mode better
>> than Pmode since word_mode is DI and Pmode may be SI for x32.
> I updated the patch to use word_mode instead of Pmode.  Bootstrap,
> make check and Specs2000 are ok.
>
> Thanks, Michael
>
> On 14 May 2013 19:55, H.J. Lu <hjl.tools@gmail.com> wrote:
>> On Tue, May 14, 2013 at 7:34 AM, Michael Zolotukhin
>> <michael.v.zolotukhin@gmail.com> wrote:
>>> Hi,
>>> I attached an updated version of the patch.  Looks like the 64-bit issue is
>>> resolved in it (now a vector mode is explicitly chosen instead of TI- or
>>> another integer mode).  Also, some of remarks are fixed in it - some
>>> others are still not changed, because I don't know what to do with them right
>>> now (see my questions in the previous letter).
>>>
>>> Could you take a look at the patch?
>>>
>>> I checked it on i386/x86_64 bootstrap and make check, and on Specs2000/2006
>>> (I checked only stability).
>>>
>>
>> You use Pmode as the largest integer mode.  Is word_mode better
>> than Pmode since word_mode is DI and Pmode may be SI for x32.
>>
>>

You should include tests to verify that it works as
expected.


--
H.J.