# HG changeset patch
# User drwhite
# Date 1455833202 18000
#      Thu Feb 18 17:06:42 2016 -0500
# Node ID d97ceb258b41914b8ccf7384a977d3dd7e98ab2c
# Parent  f83b14f087e3cc617ace35a4135f525384f8d605
[mq]: webrev.01

diff --git a/src/share/vm/gc/shared/collectedHeap.cpp b/src/share/vm/gc/shared/collectedHeap.cpp
--- a/src/share/vm/gc/shared/collectedHeap.cpp
+++ b/src/share/vm/gc/shared/collectedHeap.cpp
@@ -405,7 +405,9 @@
 oop CollectedHeap::new_store_pre_barrier(JavaThread* thread, oop new_obj) {
   // If a previous card-mark was deferred, flush it now.
   flush_deferred_store_barrier(thread);
-  if (can_elide_initializing_store_barrier(new_obj)) {
+  if (can_elide_initializing_store_barrier(new_obj) ||
+      new_obj->is_typeArray()) {
+    // Arrays of non-references don't need a pre-barrier.
     // The deferred_card_mark region should be empty
     // following the flush above.
     assert(thread->deferred_card_mark().is_empty(), "Error");