   0  inline_call_r_r <JitCode 'allocate_instance__W_Compress'>, R[%r0] -> %r0
   6  -live- %r0, %r1, %r2
   6  inline_call_r_r <JitCode 'iter'>, R[%r1] -> %r1
  12  -live- %r0, %r1, %r2
  12  setfield_gc_r %r0, %r1, FieldDescr<pypy.module.itertools.interp_itertools.W_Compress.inst_w_data>
  17  inline_call_r_r <JitCode 'iter'>, R[%r2] -> %r1
  23  -live- %r0, %r1
  23  setfield_gc_r %r0, %r1, FieldDescr<pypy.module.itertools.interp_itertools.W_Compress.inst_w_selectors>
  28  -live- %r0
  28  goto_if_not_ptr_iszero %r0, L1
  32  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  34  ---
  34  L1:
  34  ref_return %r0
