src/hotspot/cpu/ppc/gc/shared/barrierSetNMethod_ppc.cpp

@@ -154,10 +154,12 @@
  void BarrierSetNMethod::set_guard_value(nmethod* nm, int value, int bit_mask) {
    if (!supports_entry_barrier(nm)) {
      return;
    }
  
+   assert(nm->is_osr_method() || !nm->method()->has_scalarized_args(), "unsupported");
+ 
    NativeNMethodBarrier* barrier = get_nmethod_barrier(nm);
    barrier->release_set_guard_value(value, bit_mask);
  }
  
  int BarrierSetNMethod::guard_value(nmethod* nm) {