   0  getfield_gc_f_pure %r0, FieldDescr<pypy.objspace.std.floatobject.W_FloatObject.inst_floatval> -> %f0
   5  float_neg %f0 -> %f0
   8  new_with_vtable <rpython.jit.backend.llsupport.descr.SizeDescr object at 0x00005609337a62f8> -> %r0
  12  setfield_gc_f %r0, %f0, FieldDescr<pypy.objspace.std.floatobject.W_FloatObject.inst_floatval>
  17  ref_return %r0
