[opus] Antw: 2 patches related to silk_biquad_alt() optimization

[Ulrich Windl]

>>> Linfeng Zhang <linfengz at google.com> schrieb am 19.04.2017 um 18:29 in Nachricht
<CAKoqLCDX3eCUGbnZFvRzhiCV1Mbo2ksbj8K+pcVu60Dvit7WCQ at mail.gmail.com>:
> Hi,
> 
> Attached are 2 patches related to silk_biquad_alt() optimization. Please
> review.

Out of curiosity: How do you test "The optimization is bit exact with C function."? Use one example, or use a few random examples, or use a defined test suite? Or is is done per code inspection?

Regards,
Ulrich

> 
> Thanks,
> Linfeng Zhang