--- old/src/hotspot/cpu/s390/macroAssembler_s390.cpp	2018-02-12 20:04:58.999789794 -0800
+++ new/src/hotspot/cpu/s390/macroAssembler_s390.cpp	2018-02-12 20:04:58.731790825 -0800
@@ -2783,7 +2783,7 @@
   } else {
     z_lay(end, Address(obj, var_size_in_bytes));
   }
-  z_cg(end, Address(thread, JavaThread::tlab_end_offset()));
+  z_cg(end, Address(thread, JavaThread::tlab_current_end_offset()));
   branch_optimized(bcondHigh, slow_case);
 
   // Update the tlab top pointer.