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diff --git a/runtimes/nn/depend/external/eigen/Eigen/src/Core/arch/CUDA/TypeCasting.h b/runtimes/nn/depend/external/eigen/Eigen/src/Core/arch/CUDA/TypeCasting.h
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+++ b/runtimes/nn/depend/external/eigen/Eigen/src/Core/arch/CUDA/TypeCasting.h
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+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2016 Benoit Steiner <benoit.steiner.goog@gmail.com>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_TYPE_CASTING_CUDA_H
+#define EIGEN_TYPE_CASTING_CUDA_H
+
+namespace Eigen {
+
+namespace internal {
+
+template<>
+struct scalar_cast_op<float, Eigen::half> {
+ EIGEN_EMPTY_STRUCT_CTOR(scalar_cast_op)
+ typedef Eigen::half result_type;
+ EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Eigen::half operator() (const float& a) const {
+ #if defined(EIGEN_HAS_CUDA_FP16) && defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 300
+ return __float2half(a);
+ #else
+ return Eigen::half(a);
+ #endif
+ }
+};
+
+template<>
+struct functor_traits<scalar_cast_op<float, Eigen::half> >
+{ enum { Cost = NumTraits<float>::AddCost, PacketAccess = false }; };
+
+
+template<>
+struct scalar_cast_op<int, Eigen::half> {
+ EIGEN_EMPTY_STRUCT_CTOR(scalar_cast_op)
+ typedef Eigen::half result_type;
+ EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Eigen::half operator() (const int& a) const {
+ #if defined(EIGEN_HAS_CUDA_FP16) && defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 300
+ return __float2half(static_cast<float>(a));
+ #else
+ return Eigen::half(static_cast<float>(a));
+ #endif
+ }
+};
+
+template<>
+struct functor_traits<scalar_cast_op<int, Eigen::half> >
+{ enum { Cost = NumTraits<float>::AddCost, PacketAccess = false }; };
+
+
+template<>
+struct scalar_cast_op<Eigen::half, float> {
+ EIGEN_EMPTY_STRUCT_CTOR(scalar_cast_op)
+ typedef float result_type;
+ EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE float operator() (const Eigen::half& a) const {
+ #if defined(EIGEN_HAS_CUDA_FP16) && defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 300
+ return __half2float(a);
+ #else
+ return static_cast<float>(a);
+ #endif
+ }
+};
+
+template<>
+struct functor_traits<scalar_cast_op<Eigen::half, float> >
+{ enum { Cost = NumTraits<float>::AddCost, PacketAccess = false }; };
+
+
+
+#if defined(EIGEN_HAS_CUDA_FP16) && defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 300
+
+template <>
+struct type_casting_traits<Eigen::half, float> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 2,
+ TgtCoeffRatio = 1
+ };
+};
+
+template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE float4 pcast<half2, float4>(const half2& a, const half2& b) {
+ float2 r1 = __half22float2(a);
+ float2 r2 = __half22float2(b);
+ return make_float4(r1.x, r1.y, r2.x, r2.y);
+}
+
+template <>
+struct type_casting_traits<float, Eigen::half> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 1,
+ TgtCoeffRatio = 2
+ };
+};
+
+template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE half2 pcast<float4, half2>(const float4& a) {
+ // Simply discard the second half of the input
+ return __floats2half2_rn(a.x, a.y);
+}
+
+#elif defined EIGEN_VECTORIZE_AVX512
+template <>
+struct type_casting_traits<half, float> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 1,
+ TgtCoeffRatio = 1
+ };
+};
+
+template<> EIGEN_STRONG_INLINE Packet16f pcast<Packet16h, Packet16f>(const Packet16h& a) {
+ return half2float(a);
+}
+
+template <>
+struct type_casting_traits<float, half> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 1,
+ TgtCoeffRatio = 1
+ };
+};
+
+template<> EIGEN_STRONG_INLINE Packet16h pcast<Packet16f, Packet16h>(const Packet16f& a) {
+ return float2half(a);
+}
+
+#elif defined EIGEN_VECTORIZE_AVX
+
+template <>
+struct type_casting_traits<Eigen::half, float> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 1,
+ TgtCoeffRatio = 1
+ };
+};
+
+template<> EIGEN_STRONG_INLINE Packet8f pcast<Packet8h, Packet8f>(const Packet8h& a) {
+ return half2float(a);
+}
+
+template <>
+struct type_casting_traits<float, Eigen::half> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 1,
+ TgtCoeffRatio = 1
+ };
+};
+
+template<> EIGEN_STRONG_INLINE Packet8h pcast<Packet8f, Packet8h>(const Packet8f& a) {
+ return float2half(a);
+}
+
+// Disable the following code since it's broken on too many platforms / compilers.
+//#elif defined(EIGEN_VECTORIZE_SSE) && (!EIGEN_ARCH_x86_64) && (!EIGEN_COMP_MSVC)
+#elif 0
+
+template <>
+struct type_casting_traits<Eigen::half, float> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 1,
+ TgtCoeffRatio = 1
+ };
+};
+
+template<> EIGEN_STRONG_INLINE Packet4f pcast<Packet4h, Packet4f>(const Packet4h& a) {
+ __int64_t a64 = _mm_cvtm64_si64(a.x);
+ Eigen::half h = raw_uint16_to_half(static_cast<unsigned short>(a64));
+ float f1 = static_cast<float>(h);
+ h = raw_uint16_to_half(static_cast<unsigned short>(a64 >> 16));
+ float f2 = static_cast<float>(h);
+ h = raw_uint16_to_half(static_cast<unsigned short>(a64 >> 32));
+ float f3 = static_cast<float>(h);
+ h = raw_uint16_to_half(static_cast<unsigned short>(a64 >> 48));
+ float f4 = static_cast<float>(h);
+ return _mm_set_ps(f4, f3, f2, f1);
+}
+
+template <>
+struct type_casting_traits<float, Eigen::half> {
+ enum {
+ VectorizedCast = 1,
+ SrcCoeffRatio = 1,
+ TgtCoeffRatio = 1
+ };
+};
+
+template<> EIGEN_STRONG_INLINE Packet4h pcast<Packet4f, Packet4h>(const Packet4f& a) {
+ EIGEN_ALIGN16 float aux[4];
+ pstore(aux, a);
+ Eigen::half h0(aux[0]);
+ Eigen::half h1(aux[1]);
+ Eigen::half h2(aux[2]);
+ Eigen::half h3(aux[3]);
+
+ Packet4h result;
+ result.x = _mm_set_pi16(h3.x, h2.x, h1.x, h0.x);
+ return result;
+}
+
+#endif
+
+} // end namespace internal
+
+} // end namespace Eigen
+
+#endif // EIGEN_TYPE_CASTING_CUDA_H