Deleted the local copy of the tensor code since we're now pulling this

code directly from the eigen repository

1 files changed, 0 insertions, 388 deletions

diff --git a/third_party/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorPadding.h b/third_party/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorPadding.h
deleted file mode 100644
index d1dff3f38b..0000000000
--- a/third_party/eigen3/unsupported/Eigen/CXX11/src/Tensor/TensorPadding.h
+++ /dev/null
@@ -1,388 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2014 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_CXX11_TENSOR_TENSOR_PADDING_H
-#define EIGEN_CXX11_TENSOR_TENSOR_PADDING_H
-
-namespace Eigen {
-
-/** \class TensorPadding
-  * \ingroup CXX11_Tensor_Module
-  *
-  * \brief Tensor padding class.
-  * At the moment only padding with a constant value is supported.
-  *
-  */
-namespace internal {
-template<typename PaddingDimensions, typename XprType>
-struct traits<TensorPaddingOp<PaddingDimensions, XprType> > : public traits<XprType>
-{
-  typedef typename XprType::Scalar Scalar;
-  typedef traits<XprType> XprTraits;
-  typedef typename packet_traits<Scalar>::type Packet;
-  typedef typename XprTraits::StorageKind StorageKind;
-  typedef typename XprTraits::Index Index;
-  typedef typename XprType::Nested Nested;
-  typedef typename remove_reference<Nested>::type _Nested;
-  static const int NumDimensions = XprTraits::NumDimensions;
-  static const int Layout = XprTraits::Layout;
-};
-
-template<typename PaddingDimensions, typename XprType>
-struct eval<TensorPaddingOp<PaddingDimensions, XprType>, Eigen::Dense>
-{
-  typedef const TensorPaddingOp<PaddingDimensions, XprType>& type;
-};
-
-template<typename PaddingDimensions, typename XprType>
-struct nested<TensorPaddingOp<PaddingDimensions, XprType>, 1, typename eval<TensorPaddingOp<PaddingDimensions, XprType> >::type>
-{
-  typedef TensorPaddingOp<PaddingDimensions, XprType> type;
-};
-
-}  // end namespace internal
-
-
-
-template<typename PaddingDimensions, typename XprType>
-class TensorPaddingOp : public TensorBase<TensorPaddingOp<PaddingDimensions, XprType>, ReadOnlyAccessors>
-{
-  public:
-  typedef typename Eigen::internal::traits<TensorPaddingOp>::Scalar Scalar;
-  typedef typename Eigen::internal::traits<TensorPaddingOp>::Packet Packet;
-  typedef typename Eigen::NumTraits<Scalar>::Real RealScalar;
-  typedef typename XprType::CoeffReturnType CoeffReturnType;
-  typedef typename XprType::PacketReturnType PacketReturnType;
-  typedef typename Eigen::internal::nested<TensorPaddingOp>::type Nested;
-  typedef typename Eigen::internal::traits<TensorPaddingOp>::StorageKind StorageKind;
-  typedef typename Eigen::internal::traits<TensorPaddingOp>::Index Index;
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorPaddingOp(const XprType& expr, const PaddingDimensions& padding_dims,
-                                                        const Scalar padding_value)
-      : m_xpr(expr), m_padding_dims(padding_dims), m_padding_value(padding_value) {}
-
-    EIGEN_DEVICE_FUNC
-    const PaddingDimensions& padding() const { return m_padding_dims; }
-    EIGEN_DEVICE_FUNC
-    Scalar padding_value() const { return m_padding_value; }
-
-    EIGEN_DEVICE_FUNC
-    const typename internal::remove_all<typename XprType::Nested>::type&
-    expression() const { return m_xpr; }
-
-  protected:
-    typename XprType::Nested m_xpr;
-    const PaddingDimensions m_padding_dims;
-    const Scalar m_padding_value;
-};
-
-
-// Eval as rvalue
-template<typename PaddingDimensions, typename ArgType, typename Device>
-struct TensorEvaluator<const TensorPaddingOp<PaddingDimensions, ArgType>, Device>
-{
-  typedef TensorPaddingOp<PaddingDimensions, ArgType> XprType;
-  typedef typename XprType::Index Index;
-  static const int NumDims = internal::array_size<PaddingDimensions>::value;
-  typedef DSizes<Index, NumDims> Dimensions;
-
-  enum {
-    IsAligned = false,
-    PacketAccess = TensorEvaluator<ArgType, Device>::PacketAccess,
-    BlockAccess = false,
-    Layout = TensorEvaluator<ArgType, Device>::Layout,
-    CoordAccess = true,
-  };
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorEvaluator(const XprType& op, const Device& device)
-      : m_impl(op.expression(), device), m_padding(op.padding()), m_paddingValue(op.padding_value())
-  {
-    // Compute dimensions
-    m_dimensions = m_impl.dimensions();
-    for (int i = 0; i < NumDims; ++i) {
-      m_dimensions[i] += m_padding[i].first + m_padding[i].second;
-    }
-    const typename TensorEvaluator<ArgType, Device>::Dimensions& input_dims = m_impl.dimensions();
-    if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) {
-      m_outputStrides[0] = 1;
-      if (NumDims > 0) {
-        m_inputStrides[0] = 1;
-        for (int i = 1; i < NumDims; ++i) {
-          m_inputStrides[i] = m_inputStrides[i-1] * input_dims[i-1];
-          m_outputStrides[i] = m_outputStrides[i-1] * m_dimensions[i-1];
-        }
-        m_outputStrides[NumDims] = m_outputStrides[NumDims-1] * m_dimensions[NumDims-1];
-      }
-    } else {
-      m_outputStrides[NumDims] = 1;
-      if (NumDims > 0) {
-        m_inputStrides[NumDims - 1] = 1;
-        for (int i = NumDims - 2; i >= 0; --i) {
-          m_inputStrides[i] = m_inputStrides[i+1] * input_dims[i+1];
-          m_outputStrides[i+1] = m_outputStrides[i+2] * m_dimensions[i+1];
-        }
-        m_outputStrides[0] = m_outputStrides[1] * m_dimensions[0];
-      }
-    }
-  }
-
-  typedef typename XprType::Scalar Scalar;
-  typedef typename XprType::CoeffReturnType CoeffReturnType;
-  typedef typename XprType::PacketReturnType PacketReturnType;
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Dimensions& dimensions() const { return m_dimensions; }
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool evalSubExprsIfNeeded(Scalar*) {
-    m_impl.evalSubExprsIfNeeded(NULL);
-    return true;
-  }
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void cleanup() {
-    m_impl.cleanup();
-  }
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE CoeffReturnType coeff(Index index) const
-  {
-    eigen_assert(index < dimensions().TotalSize());
-    Index inputIndex = 0;
-    if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) {
-      for (int i = NumDims - 1; i > 0; --i) {
-        const Index idx = index / m_outputStrides[i];
-        if (idx < m_padding[i].first || idx >= m_dimensions[i] - m_padding[i].second) {
-          return m_paddingValue;
-        }
-        inputIndex += (idx - m_padding[i].first) * m_inputStrides[i];
-        index -= idx * m_outputStrides[i];
-      }
-      if (NumDims > 0) {
-        if (index < m_padding[0].first || index >= m_dimensions[0] - m_padding[0].second) {
-          return m_paddingValue;
-        }
-        inputIndex += (index - m_padding[0].first);
-      }
-    } else {
-      for (int i = 0; i < NumDims - 1; ++i) {
-        const Index idx = index / m_outputStrides[i+1];
-        if (idx < m_padding[i].first || idx >= m_dimensions[i] - m_padding[i].second) {
-          return m_paddingValue;
-        }
-        inputIndex += (idx - m_padding[i].first) * m_inputStrides[i];
-        index -= idx * m_outputStrides[i+1];
-      }
-      if (NumDims > 0) {
-        if (index < m_padding[NumDims-1].first ||
-            index >= m_dimensions[NumDims-1] - m_padding[NumDims-1].second) {
-          return m_paddingValue;
-        }
-        inputIndex += (index - m_padding[NumDims-1].first);
-      }
-    }
-    return m_impl.coeff(inputIndex);
-  }
-
-  template<int LoadMode>
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE PacketReturnType packet(Index index) const
-  {
-    if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) {
-      return packetColMajor(index);
-    }
-    return packetRowMajor(index);
-  }
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE CoeffReturnType coeff(const array<Index, NumDims>& coords) const
-  {
-    Index inputIndex = 0;
-    if (static_cast<int>(Layout) == static_cast<int>(ColMajor)) {
-      if (NumDims > 0) {
-        const Index idx = coords[0];
-        if (idx < m_padding[0].first || idx >= m_dimensions[0] - m_padding[0].second) {
-          return m_paddingValue;
-        }
-        inputIndex = idx - m_padding[0].first;
-      }
-      for (int i = 1; i < NumDims; ++i) {
-        const Index idx = coords[i];
-        if (idx < m_padding[i].first || idx >= m_dimensions[i] - m_padding[i].second) {
-          return m_paddingValue;
-        }
-        inputIndex += (idx - m_padding[i].first) * m_inputStrides[i];
-      }
-    } else {
-      if (NumDims > 0) {
-        const Index idx = coords[NumDims-1];
-        if (idx < m_padding[NumDims-1].first || idx >= m_dimensions[NumDims-1] - m_padding[NumDims-1].second) {
-          return m_paddingValue;
-        }
-        inputIndex = idx - m_padding[NumDims-1].first;
-      }
-      for (int i = NumDims - 2; i >= 0; --i) {
-        const Index idx = coords[i];
-        if (idx < m_padding[i].first || idx >= m_dimensions[i] - m_padding[i].second) {
-          return m_paddingValue;
-        }
-        inputIndex += (idx - m_padding[i].first) * m_inputStrides[i];
-      }
-    }
-    return m_impl.coeff(inputIndex);
-  }
-
-  EIGEN_DEVICE_FUNC Scalar* data() const { return NULL; }
-
- protected:
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE PacketReturnType packetColMajor(Index index) const
-  {
-    const int packetSize = internal::unpacket_traits<PacketReturnType>::size;
-    EIGEN_STATIC_ASSERT(packetSize > 1, YOU_MADE_A_PROGRAMMING_MISTAKE)
-    eigen_assert(index+packetSize-1 < dimensions().TotalSize());
-
-    const Index initialIndex = index;
-    Index inputIndex = 0;
-    for (int i = NumDims - 1; i > 0; --i) {
-      const Index first = index;
-      const Index last = index + packetSize - 1;
-      const Index lastPaddedLeft = m_padding[i].first * m_outputStrides[i];
-      const Index firstPaddedRight = (m_dimensions[i] - m_padding[i].second) * m_outputStrides[i];
-      const Index lastPaddedRight = m_outputStrides[i+1];
-
-      if (last < lastPaddedLeft) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= firstPaddedRight && last < lastPaddedRight) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= lastPaddedLeft && last < firstPaddedRight) {
-        // all the coefficient are between the 2 padding zones.
-        const Index idx = index / m_outputStrides[i];
-        inputIndex += (idx - m_padding[i].first) * m_inputStrides[i];
-        index -= idx * m_outputStrides[i];
-      }
-      else {
-        // Every other case
-        return packetWithPossibleZero(initialIndex);
-      }
-    }
-
-    const Index last = index + packetSize - 1;
-    const Index first = index;
-
-    if (NumDims > 0) {
-      const Index lastPaddedLeft = m_padding[0].first;
-      const Index firstPaddedRight = (m_dimensions[0] - m_padding[0].second);
-      const Index lastPaddedRight = m_outputStrides[1];
-
-      if (last < lastPaddedLeft) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= firstPaddedRight && last < lastPaddedRight) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= lastPaddedLeft && last < firstPaddedRight) {
-        // all the coefficient are between the 2 padding zones.
-        inputIndex += (index - m_padding[0].first);
-        return m_impl.template packet<Unaligned>(inputIndex);
-      }
-    }
-
-    // Every other case
-    return packetWithPossibleZero(initialIndex);
-  }
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE PacketReturnType packetRowMajor(Index index) const
-  {
-    const int packetSize = internal::unpacket_traits<PacketReturnType>::size;
-    EIGEN_STATIC_ASSERT(packetSize > 1, YOU_MADE_A_PROGRAMMING_MISTAKE)
-    eigen_assert(index+packetSize-1 < dimensions().TotalSize());
-
-    const Index initialIndex = index;
-    Index inputIndex = 0;
-
-    for (int i = 0; i < NumDims - 1; ++i) {
-      const Index first = index;
-      const Index last = index + packetSize - 1;
-      const Index lastPaddedLeft = m_padding[i].first * m_outputStrides[i+1];
-      const Index firstPaddedRight = (m_dimensions[i] - m_padding[i].second) * m_outputStrides[i+1];
-      const Index lastPaddedRight = m_outputStrides[i];
-
-      if (last < lastPaddedLeft) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= firstPaddedRight && last < lastPaddedRight) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= lastPaddedLeft && last < firstPaddedRight) {
-        // all the coefficient are between the 2 padding zones.
-        const Index idx = index / m_outputStrides[i+1];
-        inputIndex += (idx - m_padding[i].first) * m_inputStrides[i];
-        index -= idx * m_outputStrides[i+1];
-      }
-      else {
-        // Every other case
-        return packetWithPossibleZero(initialIndex);
-      }
-    }
-
-    const Index last = index + packetSize - 1;
-    const Index first = index;
-
-    if (NumDims > 0) {
-      const Index lastPaddedLeft = m_padding[NumDims-1].first;
-      const Index firstPaddedRight = (m_dimensions[NumDims-1] - m_padding[NumDims-1].second);
-      const Index lastPaddedRight = m_outputStrides[NumDims-1];
-
-      if (last < lastPaddedLeft) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= firstPaddedRight && last < lastPaddedRight) {
-        // all the coefficient are in the padding zone.
-        return internal::pset1<PacketReturnType>(m_paddingValue);
-      }
-      else if (first >= lastPaddedLeft && last < firstPaddedRight) {
-        // all the coefficient are between the 2 padding zones.
-        inputIndex += (index - m_padding[NumDims-1].first);
-        return m_impl.template packet<Unaligned>(inputIndex);
-      }
-    }
-
-    // Every other case
-    return packetWithPossibleZero(initialIndex);
-  }
-
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE PacketReturnType packetWithPossibleZero(Index index) const
-  {
-    const int packetSize = internal::unpacket_traits<PacketReturnType>::size;
-    EIGEN_ALIGN_DEFAULT typename internal::remove_const<CoeffReturnType>::type values[packetSize];
-    for (int i = 0; i < packetSize; ++i) {
-      values[i] = coeff(index+i);
-    }
-    PacketReturnType rslt = internal::pload<PacketReturnType>(values);
-    return rslt;
-  }
-
-  Dimensions m_dimensions;
-  array<Index, NumDims+1> m_outputStrides;
-  array<Index, NumDims> m_inputStrides;
-  TensorEvaluator<ArgType, Device> m_impl;
-  PaddingDimensions m_padding;
-
-  Scalar m_paddingValue;
-};
-
-
-
-
-} // end namespace Eigen
-
-#endif // EIGEN_CXX11_TENSOR_TENSOR_PADDING_H