   0  residual_call_r_i $<* fn ccall_getppid>, R[], <CallDescr() EF=2> -> %i0
   6  inline_call_ir_i <JitCode 'handle_posix_error__getppid'>, I[%i0], R[$<* struct rpy_string>] -> %i0
  14  -live- %i0
  14  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x100951d1e10> -> %r0
  18  setfield_gc_i %r0, %i0, FieldDescr<pypy.objspace.std.intobject.W_IntObject.inst_intval>
  23  ref_return %r0
