From 9f7caa7e7dcd195922133e129ce8ef296ff48d13 Mon Sep 17 00:00:00 2001
From: Konstantinos Margaritis <markos@freevec.org>
Date: Sun, 10 Jul 2016 07:05:10 -0300
Subject: [PATCH] minor fixes for big endian altivec/vsx

---
 Eigen/src/Core/arch/AltiVec/Complex.h       | 8 ++++++--
 Eigen/src/Core/arch/AltiVec/MathFunctions.h | 4 ++--
 Eigen/src/Core/arch/AltiVec/PacketMath.h    | 7 ++++---
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/Eigen/src/Core/arch/AltiVec/Complex.h b/Eigen/src/Core/arch/AltiVec/Complex.h
index ca8eee3ca..45213f791 100644
--- a/Eigen/src/Core/arch/AltiVec/Complex.h
+++ b/Eigen/src/Core/arch/AltiVec/Complex.h
@@ -53,8 +53,10 @@ template<> struct packet_traits<std::complex<float> >  : default_packet_traits
     HasAbs2   = 0,
     HasMin    = 0,
     HasMax    = 0,
-    HasSetLinear = 0,
-    HasBlend  = 1
+#ifdef __VSX__
+    HasBlend  = 1,
+#endif
+    HasSetLinear = 0
   };
 };
 
@@ -260,11 +262,13 @@ EIGEN_STRONG_INLINE void ptranspose(PacketBlock<Packet2cf,2>& kernel)
   kernel.packet[0].v = tmp;
 }
 
+#ifdef __VSX__
 template<> EIGEN_STRONG_INLINE Packet2cf pblend(const Selector<2>& ifPacket, const Packet2cf& thenPacket, const Packet2cf& elsePacket) {
   Packet2cf result;
   result.v = reinterpret_cast<Packet4f>(pblend<Packet2d>(ifPacket, reinterpret_cast<Packet2d>(thenPacket.v), reinterpret_cast<Packet2d>(elsePacket.v)));
   return result;
 }
+#endif
 
 //---------- double ----------
 #ifdef __VSX__
diff --git a/Eigen/src/Core/arch/AltiVec/MathFunctions.h b/Eigen/src/Core/arch/AltiVec/MathFunctions.h
index d92ec240e..5511245dd 100644
--- a/Eigen/src/Core/arch/AltiVec/MathFunctions.h
+++ b/Eigen/src/Core/arch/AltiVec/MathFunctions.h
@@ -159,9 +159,9 @@ Packet4f pexp<Packet4f>(const Packet4f& _x)
   Packet4i emm0;
 
   // clamp x
-  x = vec_max(vec_min(x, p4f_exp_hi), p4f_exp_lo);
+  x = pmax(pmin(x, p4f_exp_hi), p4f_exp_lo);
 
-  /* express exp(x) as exp(g + n*log(2)) */
+  // express exp(x) as exp(g + n*log(2))
   fx = pmadd(x, p4f_cephes_LOG2EF, p4f_half);
 
   fx = pfloor(fx);
diff --git a/Eigen/src/Core/arch/AltiVec/PacketMath.h b/Eigen/src/Core/arch/AltiVec/PacketMath.h
index 3f4243995..cbfef3503 100755
--- a/Eigen/src/Core/arch/AltiVec/PacketMath.h
+++ b/Eigen/src/Core/arch/AltiVec/PacketMath.h
@@ -152,13 +152,14 @@ template<> struct packet_traits<float>  : default_packet_traits
     HasExp  = 1,
 #ifdef __VSX__
     HasSqrt = 1,
-#else
-    HasSqrt = 0,
-#endif
 #if !EIGEN_COMP_CLANG
     HasRsqrt = 1,
 #else
     HasRsqrt = 0,
+#endif
+#else
+    HasSqrt = 0,
+    HasRsqrt = 0,
 #endif
     HasRound = 1,
     HasFloor = 1,