   0  inline_call_r_r <JitCode 'ClassDictStrategy.getitem'>, R[%r0, %r1, %r2] -> %r4
   8  -live- %r0, %r1, %r2, %r3, %r4
   8  -live- %r0, %r1, %r2, %r3, %r4
   8  goto_if_not_ptr_iszero %r4, L1
  12  ref_copy %r3 -> %r4
  15  inline_call_r_v <JitCode 'ClassDictStrategy.setitem'>, R[%r0, %r1, %r2, %r4]
  23  -live- %r4
  23  ref_return %r4
  25  ---
  25  L1:
  25  ref_return %r4
