Do you know when this landed and/or if I need a flag to enable it in Node? I'm running Node 11 and get an error when trying to run a function with a SIMD instruction in it.

I hacked up a WAT file with this inside a function body and compiled it with wat2wasm --enable-simd

    (local $2 v128)
    (set_local $2
       (i8x16.splat (i32.const 8))
    )

And I get an error "invalid local type" when I try to run it within Node.