src/cpu/ppc/vm/assembler_ppc.hpp

rev 13389 : PPC: Implement MulAdd and SquareToLen intrinsics

This implementation is based on the algorithm implemented in java. It
yields a performance speedup of:
JDK8 - 23%
JDK9 - 5%
JDK10 - 5%

*** 1297,1306 ****
--- 1297,1307 ----
  
    // extended mnemonics
    inline void li(   Register d, int si16);
    inline void lis(  Register d, int si16);
    inline void addir(Register d, int si16, Register a);
+   inline void subi( Register d, Register a, int si16);
  
    static bool is_addi(int x) {
       return ADDI_OPCODE == (x & ADDI_OPCODE_MASK);
    }
    static bool is_addis(int x) {