The impl `CmpGt` for `f64x2` uses AVX whereas none of the others do

[CryZe]

This is the code in question: https://github.com/Lokathor/wide/blob/b2cfe07d7ef059b5f3e4535b3f0fbd428c3ff1c5/src/f64x2_.rs#L290-L292

None of the other impls have this, so there's at least something weird going on here.