--- old/src/cpu/x86/vm/assembler_x86.hpp	2015-10-13 18:20:26.778506300 -0700
+++ new/src/cpu/x86/vm/assembler_x86.hpp	2015-10-13 18:20:26.448473300 -0700
@@ -1504,6 +1504,8 @@
   void movb(Address dst, int imm8);
   void movb(Register dst, Address src);
 
+  void movddup(XMMRegister dst, XMMRegister src);
+
   void kmovql(KRegister dst, KRegister src);
   void kmovql(KRegister dst, Register src);
   void kmovdl(KRegister dst, Register src);
@@ -1768,6 +1770,10 @@
 
   void rcrq(Register dst, int imm8);
 
+  void rcpps(XMMRegister dst, XMMRegister src);
+
+  void rcpss(XMMRegister dst, XMMRegister src);
+
   void rdtsc();
 
   void ret(int imm16);