From 39aaec7c5992f68cbbd984ef90da735f81099ad0 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 23 Nov 2018 12:16:45 -0500
Subject: [PATCH] Use vec_revb when POWER9 is available

---
 ppc_power8.cpp | 2 +-
 ppc_simd.h     | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/ppc_power8.cpp b/ppc_power8.cpp
index 4f1a0834..cd8f2531 100644
--- a/ppc_power8.cpp
+++ b/ppc_power8.cpp
@@ -64,7 +64,7 @@ bool CPU_ProbePower8()
     {
         // POWER8 added 64-bit SIMD operations
         const word64 x = W64LIT(0xffffffffffffffff);
-        word64 w1[2] = {x, x}, w2[2] = {4, 6}, w3[2];        
+        word64 w1[2] = {x, x}, w2[2] = {4, 6}, w3[2];
 
         // Specifically call the VSX loads and stores with 64-bit types
         #if defined(__ibmxl__) || (defined(_AIX) && defined(__xlC__))
diff --git a/ppc_simd.h b/ppc_simd.h
index b68c31f9..e6a955b3 100644
--- a/ppc_simd.h
+++ b/ppc_simd.h
@@ -123,8 +123,12 @@ inline uint32x4_p VecOne()
 template <class T>
 inline T VecReverse(const T data)
 {
+#if (_ARCH_PWR9)
+    return (T)vec_revb((uint8x16_p)data);
+#else
     const uint8x16_p mask = {15,14,13,12, 11,10,9,8, 7,6,5,4, 3,2,1,0};
     return (T)vec_perm(data, data, mask);
+#endif
 }
 
 //////////////////////// Loads ////////////////////////
@@ -723,7 +727,7 @@ inline void VecStoreBE(const T data, int off, byte dest[16])
 template <class T>
 inline void VecStoreBE(const T data, word32 dest[4])
 {
-	return VecStoreBE((uint8x16_p)data, (byte*)dest);
+    return VecStoreBE((uint8x16_p)data, (byte*)dest);
 }
 
 /// \brief Stores a vector to a word array
@@ -745,7 +749,7 @@ inline void VecStoreBE(const T data, word32 dest[4])
 template <class T>
 inline void VecStoreBE(const T data, int off, word32 dest[4])
 {
-	return VecStoreBE((uint8x16_p)data, (byte*)dest);
+    return VecStoreBE((uint8x16_p)data, (byte*)dest);
 }
 
 //////////////////////// Miscellaneous ////////////////////////