2 files changed, 8 insertions, 3 deletions
diff --git a/bench2.cpp b/bench2.cpp
index df1a813c..5224c531 100644
--- a/bench2.cpp
+++ b/bench2.cpp
@@ -234,6 +234,10 @@ void Benchmark2(double t, double hertz)
 		if (HasPMULL())
 			BenchMarkByName2<AuthenticatedSymmetricCipher, AuthenticatedSymmetricCipher>("AES/GCM", 0, "AES/GCM");
 		else
+#elif CRYPTOPP_POWER8_VMULL_AVAILABLE
+		if (HasPMULL())
+			BenchMarkByName2<AuthenticatedSymmetricCipher, AuthenticatedSymmetricCipher>("AES/GCM", 0, "AES/GCM");
+		else
 #endif
 		{
 			BenchMarkByName2<AuthenticatedSymmetricCipher, AuthenticatedSymmetricCipher>("AES/GCM", 0, "AES/GCM (2K tables)", MakeParameters(Name::TableSize(), 2048));
diff --git a/ppc-simd.h b/ppc-simd.h
index 055e8364..b5b94397 100644
--- a/ppc-simd.h
+++ b/ppc-simd.h
@@ -336,9 +336,10 @@ inline T VectorRotateRight(const T& vec)
 template <class T>
 inline T VectorGetLow(const T& val)
 {
-    const T zero = {0};
-    const uint8x16_p mask = {16,16,16,16, 16,16,16,16, 8,9,10,11, 12,13,14,15 };
-    return (T)vec_perm(val, zero, mask);
+    //const T zero = {0};
+    //const uint8x16_p mask = {16,16,16,16, 16,16,16,16, 8,9,10,11, 12,13,14,15 };
+    //return (T)vec_perm(val, zero, mask);
+    return VectorShiftLeft<8>(VectorShiftRight<8>(val));
 }
 
 /// \brief Extract a dword from a vector