src/share/vm/opto/library_call.cpp

rev 7958 : 8152172: PPC64: Support AES intrinsics
Reviewed-by: kvn, mdoerr, simonis
Contributed-by: horii@jp.ibm.com

*** 6457,6467 ****
--- 6457,6480 ----
    return true;
  }
  
  //------------------------------get_key_start_from_aescrypt_object-----------------------
  Node * LibraryCallKit::get_key_start_from_aescrypt_object(Node *aescrypt_object) {
+ #ifdef PPC64
+   // MixColumns for decryption can be reduced by preprocessing MixColumns with round keys.
+   // Intel's extention is based on this optimization and AESCrypt generates round keys by preprocessing MixColumns.
+   // However, ppc64 vncipher processes MixColumns and requires the same round keys with encryption.
+   // The ppc64 stubs of encryption and decryption use the same round keys (sessionK[0]).
+   Node* objSessionK = load_field_from_object(aescrypt_object, "sessionK", "[[I", /*is_exact*/ false);
+   assert (objSessionK != NULL, "wrong version of com.sun.crypto.provider.AESCrypt");
+   if (objSessionK == NULL) {
+     return (Node *) NULL;
+   }
+   Node* objAESCryptKey = load_array_element(control(), objSessionK, intcon(0), TypeAryPtr::OOPS);
+ #else
    Node* objAESCryptKey = load_field_from_object(aescrypt_object, "K", "[I", /*is_exact*/ false);
+ #endif // PPC64
    assert (objAESCryptKey != NULL, "wrong version of com.sun.crypto.provider.AESCrypt");
    if (objAESCryptKey == NULL) return (Node *) NULL;
  
    // now have the array, need to get the start address of the K array
    Node* k_start = array_element_address(objAESCryptKey, intcon(0), T_INT);