[FFmpeg-devel] [PATCH 2/2] lavc/vc1dsp: R-V V mspel_pixels

Rémi Denis-Courmont remi at remlab.net
Thu Mar 7 20:55:03 EET 2024


Le lauantaina 2. maaliskuuta 2024, 14.06.13 EET flow gg a écrit :
> Here adjusting the order, rather than simply using .rept, will be 13%-24%
> faster.

Isn't it also faster to max LMUL for the adds here?

Also this might not be much noticeable on C908, but avoiding sequential 
dependencies on the address registers may help. I mean, avoid using as address 
operand a value that was calculated by the immediate previous instruction.

-- 
Rémi Denis-Courmont
http://www.remlab.net/





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