[MPlayer-dev-eng] [PATCH]: hqdn3d.c: refactorize LowPassMulinmacro, 10%~20% faster on Athlon X2

[Zhou Zongyi]

Hi,

> I get 18% speedup with the attached patch on conroe x86_64 gcc-4.2.3. 
> It just removes some sign-extends from the inner loop.

Have you tested your patch along with my patch on x86_64? However, your patch has no effect on 32bit machine.

Zhou Zongyi
2009-01-12