   0  inline_call_r_r <JitCode 'ObjSpace.bytes0_w'>, R[%r0] -> %r0
   6  -live- %r0
   9  inline_call_r_r <JitCode 'getenv_llimpl'>, R[%r0] -> %r0
  15  -live- %r0
  18  goto_if_not_ptr_iszero %r0, L1
  22  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  24  ---
  24  L1:
  24  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000555aafd147c8> -> %r1
  28  setfield_gc_r %r1, %r0, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  33  ref_return %r1
