The following is a comparison between stdlib big integers (old) and the
specialized type (new) averaging 10 runs each:
name old time/op new time/op delta
-----------------------------------------------------------------
Not 25.4ns ± 2% 3.3ns ± 2% -86.79% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
--------------------------------------------------------
Not 0.00 0.00 ~ (all equal)
This is part of a series of commits to fully implement the uint256
package.
3ce3e33056