src/share/vm/opto/macro.cpp

@@ -1383,11 +1383,16 @@
     // MemBarStoreStore was already added. If the object does not
     // escape no need for a MemBarStoreStore. Otherwise we need a
     // MemBarStoreStore so that stores that initialize this object
     // can't be reordered with a subsequent store that makes this
     // object accessible by other threads.
+#ifndef AARCH64
     if (init == NULL || (!init->is_complete_with_arraycopy() && !init->does_not_escape())) {
+#else
+    if (!alloc->does_not_escape_thread() &&
+        (init == NULL || !init->is_complete_with_arraycopy())) {
+#endif
       if (init == NULL || init->req() < InitializeNode::RawStores) {
         // No InitializeNode or no stores captured by zeroing
         // elimination. Simply add the MemBarStoreStore after object
         // initialization.
         MemBarNode* mb = MemBarNode::make(C, Op_MemBarStoreStore, Compile::AliasIdxBot);