Function core::arch::wasm64::u16x8_narrow_i32x4

pub fn u16x8_narrow_i32x4(a: v128, b: v128) -> v128

This is supported on WebAssembly and target feature simd128 only.

Converts two input vectors into a smaller lane vector by narrowing each lane.

Signed saturation to 0x0000 or 0xffff is used and the input lanes are always interpreted as signed integers.