   0  inline_call_r_i <JitCode 'ObjSpace.c_filedescriptor_w'>, R[%r0] -> %i1
   6  -live- %i0, %i1
   9  residual_call_ir_i $<* fn ccall_flock__Signed_Signed>, I[%i1, %i0], R[], <CallDescr(ii) EF=7> -> %i0
  18  -live- %i0
  21  goto_if_not_int_lt %i0, $0, L1
  26  residual_call_ir_i $<* fn _ll_1_threadlocalref_get__SignedLlT_Signed>, I[$CDefinedIntSymbolic('RPY_TLOFS_rpy_errno')], R[], <CallDescr(i) EF=2 OS_THREADLOCALREF_GET> -> %i0
  34  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x78e37110> -> %r0
  38  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<exceptions.EnvironmentError.inst_strerror>
  43  setfield_gc_i %r0, %i0, FieldDescr<exceptions.EnvironmentError.inst_errno>
  48  inline_call_r_r <JitCode 'wrap_oserror2__exceptions_IOError'>, R[%r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, $<* struct pypy.objspace.std.typeobject.W_TypeObject>] -> %r0
  56  -live- %r0
  59  assert_not_none %r0
  61  -live- %r0
  64  guard_class %r0 -> %i0
  67  -live- %r0
  70  raise %r0
  72  ---
  72  L1:
  72  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
