   0  inline_call_ir_r <JitCode 'interp_w__W_UnicodeObject'>, I[$False], R[%r0] -> %r0
   8  -live- %r0
   8  inline_call_r_r <JitCode '_is_generic___isalpha'>, R[%r0, $<* struct rpy_string>] -> %r0
  15  -live- %r0
  15  ref_return %r0
