fn packsswb<'tcx>(
    ecx: &mut MiriInterpCx<'tcx>,
    left: &OpTy<'tcx>,
    right: &OpTy<'tcx>,
    dest: &MPlaceTy<'tcx>,
) -> InterpResult<'tcx, ()>Expand description
Converts two 16-bit integer vectors to a single 8-bit integer vector with signed saturation.
Each 128-bit chunk is treated independently (i.e., the value for
the is i-th 128-bit chunk of dest is calculated with the i-th
128-bit chunks of left and right).