   0  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000555afb5b7c58> -> %r0
   4  inline_call_r_v <JitCode 'W__StructDescr.__init__'>, R[%r0, %r1]
  10  -live- %r0, %r2
  13  goto_if_not_ptr_iszero %r2, L1
  17  L2:
  17  ref_return %r0
  19  ---
  19  L1:
  19  inline_call_r_i <JitCode 'W_Root.is_w'>, R[$<* struct pypy.interpreter.baseobjspace.W_Root>, %r2] -> %i0
  26  -live- %i0, %r0, %r2
  29  goto_if_not %i0, L3
  33  goto L2
  36  ---
  36  L3:
  36  residual_call_r_v $<* fn W__StructDescr.define_fields>, R[%r0, %r2], <CallDescr(rr) EF=7>
  43  -live- %r0
  46  ref_return %r0
