src/hotspot/cpu/x86/assembler_x86.hpp

*** 2041,10 ***
--- 2041,11 ---
    void rcpps(XMMRegister dst, XMMRegister src);
  
    void rcpss(XMMRegister dst, XMMRegister src);
  
    void rdtsc();
+   void rdtscp();
  
    void ret(int imm16);
  
    void roll(Register dst);