src/share/vm/gc/shared/collectedHeap.cpp

@@ -455,11 +455,11 @@
 
 #ifdef ASSERT
 void CollectedHeap::fill_args_check(HeapWord* start, size_t words)
 {
   assert(words >= min_fill_size(), "too small to fill");
-  assert(words % MinObjAlignment == 0, "unaligned size");
+  assert((words & MinObjAlignmentMask) == 0, "unaligned size");
   assert(Universe::heap()->is_in_reserved(start), "not in heap");
   assert(Universe::heap()->is_in_reserved(start + words - 1), "not in heap");
 }
 
 void CollectedHeap::zap_filler_array(HeapWord* start, size_t words, bool zap)