--- old/src/share/vm/gc/cms/compactibleFreeListSpace.cpp	2017-06-30 11:28:08.775906801 +0200
+++ new/src/share/vm/gc/cms/compactibleFreeListSpace.cpp	2017-06-30 11:28:08.571900426 +0200
@@ -64,7 +64,7 @@
 
   // MinChunkSize should be a multiple of MinObjAlignment and be large enough
   // for chunks to contain a FreeChunk.
-  size_t min_chunk_size_in_bytes = align_size_up(sizeof(FreeChunk), MinObjAlignmentInBytes);
+  size_t min_chunk_size_in_bytes = align_up(sizeof(FreeChunk), MinObjAlignmentInBytes);
   MinChunkSize = min_chunk_size_in_bytes / BytesPerWord;
 
   assert(IndexSetStart == 0 && IndexSetStride == 0, "already set");
@@ -2873,8 +2873,7 @@
     if (span.contains(low)) {
       // Align low down to  a card boundary so that
       // we can use block_offset_careful() on span boundaries.
-      HeapWord* aligned_low = (HeapWord*)align_size_down((uintptr_t)low,
-                                 CardTableModRefBS::card_size);
+      HeapWord* aligned_low = align_down(low, CardTableModRefBS::card_size);
       // Clip span prefix at aligned_low
       span = span.intersection(MemRegion(aligned_low, span.end()));
     } else if (low > span.end()) {