   0  inline_call_r_r <JitCode 'allocate_instance__W_Chain'>, R[%r0] -> %r0
   6  -live- %r0, %r1
   6  inline_call_r_r <JitCode 'makespecialisedtuple'>, R[%r1] -> %r2
  12  -live- %r0, %r1, %r2
  12  catch_exception L1
  15  L2:
  15  inline_call_r_r <JitCode 'iter'>, R[%r2] -> %r1
  21  -live- %r0, %r1
  21  setfield_gc_r %r0, %r1, FieldDescr<pypy.module.itertools.interp_itertools.W_Chain.inst_w_iterables>
  26  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.module.itertools.interp_itertools.W_Chain.inst_w_it>
  31  -live- %r0
  31  goto_if_not_ptr_iszero %r0, L3
  35  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  37  ---
  37  L3:
  37  ref_return %r0
  39  ---
  39  L1:
  39  goto_if_exception_mismatch $<* struct object_vtable>, L4
  43  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x3fff53932d10> -> %r2
  47  setfield_gc_r %r2, %r1, FieldDescr<pypy.objspace.std.tupleobject.W_TupleObject.inst_wrappeditems>
  52  goto L2
  55  ---
  55  L4:
  55  reraise
