# HG changeset patch
# User aph
# Date 1470065634 -3600
#      Mon Aug 01 16:33:54 2016 +0100
# Node ID ee9bffb3bd390b2ad805c7b59d7d2ab8a68a4367
# Parent  ab3e0bde3c15bbba60de4decabcd70ffef657448
8157306, PR3121: Random infrequent null pointer exceptions in javac
Reviewed-by: kvn

diff -r ab3e0bde3c15 -r ee9bffb3bd39 src/share/vm/opto/lcm.cpp
--- openjdk/hotspot/src/share/vm/opto/lcm.cpp	Tue Jul 26 04:42:03 2016 +0100
+++ openjdk/hotspot/src/share/vm/opto/lcm.cpp	Mon Aug 01 16:33:54 2016 +0100
@@ -1090,11 +1090,14 @@
     Block *sb = block->_succs[i];
     // Clone the entire area; ignoring the edge fixup for now.
     for( uint j = end; j > beg; j-- ) {
-      // It is safe here to clone a node with anti_dependence
-      // since clones dominate on each path.
       Node *clone = block->get_node(j-1)->clone();
       sb->insert_node(clone, 1);
       map_node_to_block(clone, sb);
+#ifdef AARCH64
+      if (clone->needs_anti_dependence_check()) {
+        insert_anti_dependences(sb, clone);
+      }
+#endif
     }
   }