How to use the vector FastFunctions?

[luigi-rosso]

Hi, I'm curious how the instructions for these functions get generated by the compiler:

luau/VM/src/lbuiltins.cpp

Lines 1904 to 1914 in 68cdcc4

	luauF_vectormagnitude,
	luauF_vectornormalize,
	luauF_vectorcross,
	luauF_vectordot,
	luauF_vectorfloor,
	luauF_vectorceil,
	luauF_vectorabs,
	luauF_vectorsign,
	luauF_vectorclamp,
	luauF_vectormin,
	luauF_vectormax,

I can't glean from the codebase how to instruct the compiler to generate the correct instructions to use these. I'm exposing a native vector library to Luau and using the builtin vector type instead of a userdata type and would love to take advantage of some of these.