fn test_bits_masked<'tcx>(
    ecx: &MiriInterpCx<'tcx>,
    op: &OpTy<'tcx>,
    mask: &OpTy<'tcx>,
) -> InterpResult<'tcx, (bool, bool)>Expand description
Calculates two booleans.
The first is true when all the bits of op & mask are zero.
The second is true when (op & mask) == mask