--- old/src/hotspot/cpu/x86/assembler_x86.hpp	2018-10-31 14:22:33.207960211 +0100
+++ new/src/hotspot/cpu/x86/assembler_x86.hpp	2018-10-31 14:22:33.087960306 +0100
@@ -1575,6 +1575,9 @@
   void notq(Register dst);
 #endif
 
+  void btsl(Address dst, Register idx);
+  void btrl(Address dst, Register idx);
+
   void orl(Address dst, int32_t imm32);
   void orl(Register dst, int32_t imm32);
   void orl(Register dst, Address src);