   0  int_signext %i0, $4 -> %i0
   4  int_signext %i1, $4 -> %i1
   8  int_signext %i2, $4 -> %i2
  12  residual_call_ir_i $<* fn ccall_epoll_ctl__INT_INT_INT_epoll_eventPtr>, I[%i0, %i1, %i2, %i3], R[], <CallDescr(iiii) EF=7> -> %i0
  23  -live- %i0
  23  int_return %i0
