diff -r 70295a56c207 -r 96ea37459ca7 src/hotspot/share/memory/arena.cpp
--- a/src/hotspot/share/memory/arena.cpp	Thu Jul 12 10:41:44 2018 -0400
+++ b/src/hotspot/share/memory/arena.cpp	Thu Jul 12 17:29:48 2018 -0700
@@ -335,7 +335,7 @@
 // Total of all Chunks in arena
 size_t Arena::used() const {
   size_t sum = _chunk->length() - (_max-_hwm); // Size leftover in this Chunk
-  register Chunk *k = _first;
+  Chunk *k = _first;
   while( k != _chunk) {         // Whilst have Chunks in a row
     sum += k->length();         // Total size of this Chunk
     k = k->next();              // Bump along to next Chunk