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/*
* Copyright (c) 2017-2018 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "GEMM.h"
#include "arm_compute/core/Types.h"
namespace arm_compute
{
namespace test
{
namespace validation
{
namespace reference
{
template <typename T>
SimpleTensor<T> gemm_interleave_4x4(const SimpleTensor<T> &in, SimpleTensor<T> &out)
{
const T *mtx_in = reinterpret_cast<const T *>(in.data());
T *mtx_ref = reinterpret_cast<T *>(out.data());
const int32_t in_rows = in.shape().y();
const int32_t in_cols = in.shape().x();
const int32_t out_stride = out.shape().x();
int32_t y = 0;
for(; y <= (in_rows - 4); y += 4)
{
const T *in_ptr = &mtx_in[y * in_cols];
for(int32_t x = 0; x < in_cols; x++)
{
const T tmp[4] = { in_ptr[x + 0 * in_cols],
in_ptr[x + 1 * in_cols],
in_ptr[x + 2 * in_cols],
in_ptr[x + 3 * in_cols]
};
T *dst = &mtx_ref[static_cast<size_t>(x * 4.f) + static_cast<size_t>(std::ceil(y / 4.f)) * out_stride];
memcpy(dst, tmp, sizeof(T) * 4);
}
}
// Leftover along the Y direction
const int32_t leftover_y = in_rows - y;
if(leftover_y != 0)
{
const T *in_ptr = &mtx_in[y * in_cols];
for(int32_t x = 0; x < in_cols; x++)
{
T tmp[4] = { 0, 0, 0, 0 };
for(int32_t k = 0; k < leftover_y; k++)
{
tmp[k] = in_ptr[k * in_cols + x];
}
T *dst = &mtx_ref[static_cast<size_t>(x * 4.f) + static_cast<size_t>(std::ceil(y / 4.f)) * out_stride];
memcpy(dst, tmp, sizeof(T) * 4);
}
}
return out;
}
} // namespace reference
} // namespace validation
} // namespace test
} // namespace arm_compute
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