   0  residual_call_ir_i $<* fn ccall_sem_post>, I[%i0], R[], <CallDescr(i) EF=2> -> %i0
   8  -live- %i0
  11  goto_if_not_int_lt %i0, $0, L1
  16  residual_call_ir_i $<* fn _ll_1_threadlocalref_get__INTLlT_Signed>, I[$CDefinedIntSymbolic('RPY_TLOFS_rpy_errno')], R[], <CallDescr(i) EF=2 OS_THREADLOCALREF_GET> -> %i0
  24  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000555aefa75788> -> %r0
  28  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<exceptions.EnvironmentError.inst_strerror>
  33  setfield_gc_i %r0, %i0, FieldDescr<exceptions.EnvironmentError.inst_errno>
  38  assert_not_none %r0
  40  -live- %r0
  43  raise %r0
  45  ---
  45  L1:
  45  void_return
