   0  -live- %r0, %r1
   0  goto_if_not_ptr_iszero %r1, L1
   4  inline_call_r_r <JitCode 'wrap_oserror2__None'>, R[%r0, $<* struct pypy.interpreter.baseobjspace.W_Root>] -> %r0
  11  -live- %r0
  11  ref_return %r0
  13  ---
  13  L1:
  13  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x0000000174027cc8> -> %r2
  17  setfield_gc_r %r2, %r1, FieldDescr<pypy.objspace.std.bytesobject.W_BytesObject.inst__value>
  22  inline_call_r_r <JitCode 'wrap_oserror2__None'>, R[%r0, %r2] -> %r0
  29  -live- %r0
  29  ref_return %r0
