src/cpu/ppc/vm/assembler_ppc.hpp

rev 13437 : Implement SHA256 and SHA512 intrinsics for PPC64

Sample run reduced 6.5s run to 2.8s for SHA256.

*** 2172,2182 ****
    inline void vncipher(    VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vncipherlast(VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vsbox(       VectorRegister d, VectorRegister a);
  
    // SHA (introduced with Power 8)
!   // Not yet implemented.
  
    // Vector Binary Polynomial Multiplication (introduced with Power 8)
    inline void vpmsumb(  VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vpmsumd(  VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vpmsumh(  VectorRegister d, VectorRegister a, VectorRegister b);
--- 2172,2183 ----
    inline void vncipher(    VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vncipherlast(VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vsbox(       VectorRegister d, VectorRegister a);
  
    // SHA (introduced with Power 8)
!   inline void vshasigmad(VectorRegister d, VectorRegister a, bool st, int six);
!   inline void vshasigmaw(VectorRegister d, VectorRegister a, bool st, int six);
  
    // Vector Binary Polynomial Multiplication (introduced with Power 8)
    inline void vpmsumb(  VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vpmsumd(  VectorRegister d, VectorRegister a, VectorRegister b);
    inline void vpmsumh(  VectorRegister d, VectorRegister a, VectorRegister b);