--- a/hotspot/src/cpu/ppc/vm/vm_version_ppc.cpp	Mon Dec 21 16:58:29 2015 +0000
+++ b/hotspot/src/cpu/ppc/vm/vm_version_ppc.cpp	Tue Dec 29 11:54:21 2015 +0100
@@ -225,12 +225,19 @@
   if (FLAG_IS_DEFAULT(UseMultiplyToLenIntrinsic)) {
     UseMultiplyToLenIntrinsic = true;
   }
+  if (FLAG_IS_DEFAULT(UseMontgomeryMultiplyIntrinsic)) {
+    UseMontgomeryMultiplyIntrinsic = true;
+  }
+  if (FLAG_IS_DEFAULT(UseMontgomerySquareIntrinsic)) {
+    UseMontgomerySquareIntrinsic = true;
+  }
 
   if (UseVectorizedMismatchIntrinsic) {
     warning("UseVectorizedMismatchIntrinsic specified, but not available on this CPU.");
     FLAG_SET_DEFAULT(UseVectorizedMismatchIntrinsic, false);
   }
 
+
   // Adjust RTM (Restricted Transactional Memory) flags.
   if (UseRTMLocking) {
     // If CPU or OS are too old: