Request for reviews (S): 8005522: use fast-string instructions on x86 for zeroing

[Christian Thalinger]

On Jan 2, 2013, at 5:22 PM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:

> On 1/2/13 4:56 PM, Christian Thalinger wrote:
>> 
>> On Jan 2, 2013, at 10:28 AM, Vladimir Kozlov <vladimir.kozlov at oracle.com> wrote:
>> 
>>> Thank you, Roland
>>> 
>>> I added separate mach nodes for fast stosb in .ad files to fox formats:
>>> 
>>> http://cr.openjdk.java.net/~kvn/8005522/webrev.01/
>> 
>> +   void rep_setbyte();
>> 
>> Can we name it rep_stosb?  That's closer to the actual instruction.
> 
> For that I also need to rename rep_set() to rep_stos():
> 
> http://cr.openjdk.java.net/~kvn/8005522/webrev.02

Much better.  Thanks.

-- Chris

> 
> Thanks,
> Vladimir
> 
>> 
>> -- Chris
>> 
>>> 
>>> Thanks,
>>> Vladimir
>>> 
>>> On 1/2/13 1:39 AM, Roland Westrelin wrote:
>>>>> http://cr.openjdk.java.net/~kvn/8005522/webrev/
>>>>> 
>>>>> 8005522: use fast-string instructions on x86 for zeroing
>>>> 
>>>> 
>>>> In x86_32.ad/x86_64.ad the rep_stos() format is no longer in sync with the code that is emitted.
>>>> Otherwise, it looks good.
>>>> 
>>>> Roland.
>>>> 
>>