   0  int_and %i0, $4294967295 -> %i0
   4  residual_call_ir_i $<* fn ccall_setegid__UINT>, I[%i0], R[], <CallDescr(i) EF=7> -> %i0
  12  -live- %i0
  15  goto_if_not_int_lt %i0, $0, L1
  20  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
  28  new_array_clear $2, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000aaab52f59c20> -> %r0
  33  setarrayitem_gc_r %r0, $0, $<* struct rpy_string>, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000aaab52f59c20>
  39  setarrayitem_gc_r %r0, $1, $<* struct rpy_string>, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000aaab52f59c20>
  45  inline_call_ir_r <JitCode 'll_join_strs_look_inside_iff__Signed_arrayPtr_Ptr_GcStruct_rpy_stringLlT'>, I[$2], R[%r0] -> %r0
  53  -live- %i0, %r0
  56  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000aaab746d4090> -> %r1
  60  setfield_gc_r %r1, %r0, FieldDescr<exceptions.EnvironmentError.inst_strerror>
  65  setfield_gc_i %r1, %i0, FieldDescr<exceptions.EnvironmentError.inst_errno>
  70  assert_not_none %r1
  72  -live- %r1
  75  raise %r1
  77  ---
  77  L1:
  77  void_return
