src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp

rev 6589 : 8047818: G1 HeapRegions can no longer be ContiguousSpaces
Reviewed-by:

@@ -97,10 +97,25 @@
   assert(p >= _reserved.start(), "just checking");
   size_t delta = pointer_delta(p, _reserved.start());
   return (delta & right_n_bits(LogN_words)) == (size_t)NoBits;
 }
 
+void G1BlockOffsetSharedArray::set_offset_array(HeapWord* left, HeapWord* right, u_char offset) {
+  check_index(index_for(right - 1), "right address out of range");
+  assert(left  < right, "Heap addresses out of order");
+  size_t num_cards = pointer_delta(right, left) >> LogN_words;
+  if (UseMemSetInBOT) {
+    memset(&_offset_array[index_for(left)], offset, num_cards);
+  } else {
+    size_t i = index_for(left);
+    const size_t end = i + num_cards;
+    for (; i < end; i++) {
+      _offset_array[i] = offset;
+    }
+  }
+}
+
 
 //////////////////////////////////////////////////////////////////////
 // G1BlockOffsetArray
 //////////////////////////////////////////////////////////////////////