| /* |
| * 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__ */ |