RE: [PATCH] x86: Run checksumming in parallel accross multiple alu's
Date
Wed, 30 Oct 2013 12:18:06 -0000
From
"David Laight" <>
> /me wonders if rearranging the instructions into this order: > adcq 0*8(src), res1 > adcq 1*8(src), res2 > adcq 2*8(src), res1
Those have to be sequenced.
Using a 64bit lea to add 32bit quantities should avoid the dependencies on the flags register. However you'd need to get 3 of those active to beat a 64bit adc.