From 99d75235a9567865d2c070a2840d54c8a5ad0f43 Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Mon, 13 Oct 2014 17:02:09 -0700
Subject: Misc improvements and cleanups

---
 Eigen/src/Core/GenericPacketMath.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'Eigen/src/Core')

diff --git a/Eigen/src/Core/GenericPacketMath.h b/Eigen/src/Core/GenericPacketMath.h
index e6fea5bba..3ef3475c7 100644
--- a/Eigen/src/Core/GenericPacketMath.h
+++ b/Eigen/src/Core/GenericPacketMath.h
@@ -359,7 +359,7 @@ pmadd(const Packet&  a,
 /** \internal \returns a packet version of \a *from.
   * If LoadMode equals #Aligned, \a from must be 16 bytes aligned */
 template<typename Packet, int LoadMode>
-inline Packet ploadt(const typename unpacket_traits<Packet>::type* from)
+EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE Packet ploadt(const typename unpacket_traits<Packet>::type* from)
 {
   if(LoadMode == Aligned)
     return pload<Packet>(from);
@@ -370,7 +370,7 @@ inline Packet ploadt(const typename unpacket_traits<Packet>::type* from)
 /** \internal copy the packet \a from to \a *to.
   * If StoreMode equals #Aligned, \a to must be 16 bytes aligned */
 template<typename Scalar, typename Packet, int LoadMode>
-inline void pstoret(Scalar* to, const Packet& from)
+EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE void pstoret(Scalar* to, const Packet& from)
 {
   if(LoadMode == Aligned)
     pstore(to, from);
@@ -378,6 +378,17 @@ inline void pstoret(Scalar* to, const Packet& from)
     pstoreu(to, from);
 }
 
+/** \internal \returns a packet version of \a *from.
+  * Unlike ploadt, ploadt_ro takes advantage of the read-only memory path on the
+  * hardware if available to speedup the loading of data that won't be modified
+  * by the current computation.
+  */
+template<typename Packet, int LoadMode>
+inline Packet ploadt_ro(const typename unpacket_traits<Packet>::type* from)
+{
+  return ploadt<Packet, LoadMode>(from);
+}
+
 /** \internal default implementation of palign() allowing partial specialization */
 template<int Offset,typename PacketType>
 struct palign_impl
-- 
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