From f41959ccb2d9d4c722fe8fc3351401d53bcf4900 Mon Sep 17 00:00:00 2001 From: Manjunath Kudlur Date: Fri, 6 Nov 2015 16:27:58 -0800 Subject: TensorFlow: Initial commit of TensorFlow library. TensorFlow is an open source software library for numerical computation using data flow graphs. Base CL: 107276108 --- .../eigen3/Eigen/src/Core/arch/AVX/TypeCasting.h | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 third_party/eigen3/Eigen/src/Core/arch/AVX/TypeCasting.h (limited to 'third_party/eigen3/Eigen/src/Core/arch/AVX/TypeCasting.h') diff --git a/third_party/eigen3/Eigen/src/Core/arch/AVX/TypeCasting.h b/third_party/eigen3/Eigen/src/Core/arch/AVX/TypeCasting.h new file mode 100644 index 0000000000..83bfdc604b --- /dev/null +++ b/third_party/eigen3/Eigen/src/Core/arch/AVX/TypeCasting.h @@ -0,0 +1,51 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2015 Benoit Steiner +// +// 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_AVX_H +#define EIGEN_TYPE_CASTING_AVX_H + +namespace Eigen { + +namespace internal { + +// For now we use SSE to handle integers, so we can't use AVX instructions to cast +// from int to float +template <> +struct type_casting_traits { + enum { + VectorizedCast = 0, + SrcCoeffRatio = 1, + TgtCoeffRatio = 1 + }; +}; + +template <> +struct type_casting_traits { + enum { + VectorizedCast = 0, + SrcCoeffRatio = 1, + TgtCoeffRatio = 1 + }; +}; + + + +template<> EIGEN_STRONG_INLINE Packet8i pcast(const Packet8f& a) { + return _mm256_cvtps_epi32(a); +} + +template<> EIGEN_STRONG_INLINE Packet8f pcast(const Packet8i& a) { + return _mm256_cvtepi32_ps(a); +} + +} // end namespace internal + +} // end namespace Eigen + +#endif // EIGEN_TYPE_CASTING_AVX_H -- cgit v1.2.3