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Re: [RFC] Clean up SSE variable shifts


On 08/21/2010 03:27 PM, Lu, Hongjiu wrote:
>>
>>> What is the performance impact of extra function call
>>> vs. multiple copies of the same jump table?
>>
>> I don't know.  I would hope that an indirect call and return
>> would be just as predictable as an indirect jump and branch.
>>
>> Fancy helping me benchmark?
>>
> 
> Sure. Send me a patch. I will run some benchmarks.

Well, you've got the patch with the shifts inline,
here's one with the shifts accessed via call.


r~

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