This is supported on
target_family="wasm"
and target feature simd128
only.Expand description
Load four 16-bit integers and sign extend each one to a 32-bit lane
Unsafety
This intrinsic is unsafe because it takes a raw pointer as an argument, and the pointer must be valid to load 8 bytes from. Note that there is no alignment requirement on this pointer since this intrinsic performs a 1-aligned load.