dtrace_dif_emulate
if (!dtrace_dif_emulate(pred, mstate, vstate, state))
rval = dtrace_dif_emulate(helper->dtha_actions[i],
rval = dtrace_dif_emulate(dp, &mstate, vstate, state);
v = dtrace_dif_emulate(dp,
val = dtrace_dif_emulate(dp, &mstate, vstate, state);