   0  inline_call_r_i <JitCode 'ObjSpace.c_filedescriptor_w'>, R[%r0] -> %i1
   6  -live- %i0, %i1
   6  int_signext %i0, $4 -> %i0
  10  int_signext %i1, $4 -> %i1
  14  residual_call_ir_i $<* fn ccall_flock__INT_INT>, I[%i1, %i0], R[], <CallDescr(ii) EF=7> -> %i0
  23  -live- %i0
  23  -live- %i0
  23  goto_if_not_int_lt %i0, $0, L1
  28  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
  36  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x1009a67c250> -> %r0
  40  setfield_gc_r %r0, $<* struct rpy_string>, FieldDescr<exceptions.EnvironmentError.inst_strerror>
  45  setfield_gc_i %r0, %i0, FieldDescr<exceptions.EnvironmentError.inst_errno>
  50  inline_call_r_r <JitCode 'wrap_oserror2__w_IOError'>, R[%r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, $<* struct rpy_string>] -> %r0
  58  -live- %r0
  58  -live- %r0
  58  guard_class %r0 -> %i0
  61  -live- %r0
  61  raise %r0
  63  ---
  63  L1:
  63  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
