   0  getarrayitem_gc_r %r1, $0, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000000177231bb0> -> %r0
   6  inline_call_ir_r <JitCode 'interp_w__W_TextIOWrapper'>, I[$False], R[%r0] -> %r0
  14  -live- %r0, %r1
  14  getarrayitem_gc_r %r1, $1, <rpython.jit.backend.llsupport.descr.ArrayDescr object at 0x0000000177231bb0> -> %r1
  20  inline_call_r_r <JitCode 'W_TextIOWrapper.truncate_w'>, R[%r0, %r1] -> %r0
  27  -live- %r0
  27  ref_return %r0
