--- a/src/hotspot/cpu/x86/macroAssembler_x86.hpp	Sat Nov 11 01:21:09 2017 +0100
+++ b/src/hotspot/cpu/x86/macroAssembler_x86.hpp	Thu Aug 31 10:00:28 2017 +0200
@@ -656,6 +656,12 @@
   // Support for serializing memory accesses between threads
   void serialize_memory(Register thread, Register tmp);
 
+#ifdef _LP64
+  void safepoint_poll(Label& slow_path, Register thread_reg, Register temp_reg);
+#else
+  void safepoint_poll(Label& slow_path);
+#endif
+
   void verify_tlab();
 
   // Biased locking support