Experiment: backport `ff_derive` x86_64 assembly from `fff` crate#58

Draft

str4d wants to merge 11 commits intomainfrom

Commits on May 31, 2021

feat: experimental assembly support

dignifiedquire
authored and
str4d
committed
switch to linked asm

dignifiedquire
authored and
str4d
committed
use fixed asm

dignifiedquire
authored and
str4d
committed
updated assembly

dignifiedquire
authored and
str4d
committed
fixup and integrate adx check

dignifiedquire
authored and
str4d
committed
fix(fff_derive): only use asm when the right modulus is specified

dignifiedquire
authored and
str4d
committed
fix: ensure to compile asm only on x86_64

dignifiedquire
authored and
str4d
committed
fix building on non x864_64 archs

dignifiedquire
authored and
str4d
committed
another build fix

dignifiedquire
authored and
str4d
committed
asm: Use core crate where possible
str4d
committed
asm: Place behind a default-off `asm` feature flag
str4d
committed