1 files changed, 15 insertions, 1 deletions
diff --git a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
index 0bf891d24..a757ea45b 100644
--- a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
+++ b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
@@ -34,7 +34,8 @@ template<> struct packet_traits<Eigen::half> : default_packet_traits
     HasSqrt   = 1,
     HasRsqrt  = 1,
     HasExp    = 1,
-    HasLog = 1
+    HasLog    = 1,
+    HasLog1p  = 1
   };
 };
 
@@ -273,6 +274,11 @@ half2 plog<half2>(const half2& a) {
   return h2log(a);
 }
 
+template<>  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+half2 plog1p<half2>(const half2& a) {
+  return h2log1p(a);
+}
+
 template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
 half2 pexp<half2>(const half2& a) {
   return h2exp(a);
@@ -298,6 +304,14 @@ template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE half2 plog<half2>(const half2&
   return __floats2half2_rn(r1, r2);
 }
 
+template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE half2 plog1p<half2>(const half2& a) {
+  float a1 = __low2float(a);
+  float a2 = __high2float(a);
+  float r1 = log1pf(a1);
+  float r2 = log1pf(a2);
+  return __floats2half2_rn(r1, r2);
+}
+
 template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE half2 pexp<half2>(const half2& a) {
   float a1 = __low2float(a);
   float a2 = __high2float(a);