From 9091351dbea903103869fe60e2962cf2a7ae03c8 Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Wed, 11 May 2016 15:22:13 -0700
Subject: [PATCH] __ldg is only available with cuda architectures >= 3.5

---
 Eigen/src/Core/arch/CUDA/PacketMathHalf.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
index baaf15003..1b32d20aa 100644
--- a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
+++ b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
@@ -72,7 +72,7 @@ template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void pstoreu<half>(half* to, co
 
 template<>
  EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE half2 ploadt_ro<half2, Aligned>(const half* from) {
-#if __CUDA_ARCH__ >= 320
+#if __CUDA_ARCH__ >= 350
    return __ldg((const half2*)from);
 #else
   return __halves2half2(*(from+0), *(from+1));
@@ -81,7 +81,7 @@ template<>
 
 template<>
 EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE half2 ploadt_ro<half2, Unaligned>(const half* from) {
-#if __CUDA_ARCH__ >= 320
+#if __CUDA_ARCH__ >= 350
    return __halves2half2(__ldg(from+0), __ldg(from+1));
 #else
   return __halves2half2(*(from+0), *(from+1));