   0  inline_call_r_i <JitCode 'ObjSpace.c_filedescriptor_w'>, R[%r0] -> %i1
   6  -live- %i0, %i1
   9  int_signext %i0, $4 -> %i0
  13  int_signext %i1, $4 -> %i1
  17  residual_call_ir_i $<* fn ccall_flock__INT_INT>, I[%i1, %i0], R[], <CallDescr(ii) EF=7> -> %i0
  26  -live- %i0
  29  goto_if_not_int_lt %i0, $0, L1
  34  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
  42  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000555aefa75788> -> %r0
  46  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<exceptions.EnvironmentError.inst_strerror>
  51  setfield_gc_i %r0, %i0, FieldDescr<exceptions.EnvironmentError.inst_errno>
  56  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
  64  -live- %r0
  67  assert_not_none %r0
  69  -live- %r0
  72  guard_class %r0 -> %i0
  75  -live- %r0
  78  raise %r0
  80  ---
  80  L1:
  80  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
