   0  getfield_gc_r %r0, FieldDescr<pypy.module.mmap.interp_mmap.W_MMap.inst_mmap> -> %r1
   5  inline_call_r_v <JitCode 'MMap.check_valid'>, R[%r1]
  10  -live- %r0
  10  catch_exception L1
  13  getfield_gc_r %r0, FieldDescr<pypy.module.mmap.interp_mmap.W_MMap.inst_mmap> -> %r0
  18  residual_call_r_r $<* fn MMap.readline>, R[%r0], <CallDescr(r) EF=5> -> %r0
  25  -live- %r0
  25  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000000174027cc8> -> %r1
  29  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  34  ref_return %r1
  36  ---
  36  L1:
  36  goto_if_exception_mismatch $<* struct object_vtable>, L2
  40  last_exc_value -> %r0
  42  inline_call_r_r <JitCode 'mmap_error'>, R[%r0] -> %r0
  48  -live- %r0
  48  assert_not_none %r0
  50  -live- %r0
  50  guard_class %r0 -> %i0
  53  -live- %r0
  53  raise %r0
  55  ---
  55  L2:
  55  reraise
