--- a/src/hotspot/cpu/x86/assembler_x86.hpp	Fri Jun 15 11:58:34 2018 +0530
+++ b/src/hotspot/cpu/x86/assembler_x86.hpp	Mon Jun 11 15:28:24 2018 +0200
@@ -1536,6 +1536,8 @@
   void orl(Register dst, Register src);
   void orl(Address dst, Register src);
 
+  void orb(Address dst, int imm8);
+
   void orq(Address dst, int32_t imm32);
   void orq(Register dst, int32_t imm32);
   void orq(Register dst, Address src);