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/*
* Copyright (c) 2018-2019 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.
*/
#ifndef ARM_COMPUTE_WRAPPER_SCALAR_ADD_H
#define ARM_COMPUTE_WRAPPER_SCALAR_ADD_H
#include <arm_neon.h>
namespace arm_compute
{
namespace wrapper
{
inline uint8_t add_sat(const uint8_t &a, const uint8_t &b)
{
const uint8x8_t va = { a, 0, 0, 0, 0, 0, 0, 0 };
const uint8x8_t vb = { b, 0, 0, 0, 0, 0, 0, 0 };
return vget_lane_u8(vqadd_u8(va, vb), 0);
}
inline int16_t add_sat(const int16_t &a, const int16_t &b)
{
const int16x4_t va = { a, 0, 0, 0 };
const int16x4_t vb = { b, 0, 0, 0 };
return vget_lane_s16(vqadd_s16(va, vb), 0);
}
inline float add_sat(const float &a, const float &b)
{
// No notion of saturation exists in floating point
return a + b;
}
#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
inline float16_t add_sat(const float16_t &a, const float16_t &b)
{
// No notion of saturation exists in floating point
return a + b;
}
#endif // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
} // namespace wrapper
} // namespace arm_compute
#endif /* ARM_COMPUTE_WRAPPER_SCALAR_ADD_H */
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