Compute Library
 21.11
abs.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2018-2020 Arm Limited.
3  *
4  * SPDX-License-Identifier: MIT
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to
8  * deal in the Software without restriction, including without limitation the
9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10  * sell copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in all
14  * copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  */
24 #ifndef ARM_COMPUTE_WRAPPER_ABS_H
25 #define ARM_COMPUTE_WRAPPER_ABS_H
26 
27 #include <arm_neon.h>
28 
29 namespace arm_compute
30 {
31 namespace wrapper
32 {
33 #define VABS_IMPL(stype, vtype, prefix, postfix) \
34  inline vtype vabs(const vtype &a) \
35  { \
36  return prefix##_##postfix(a); \
37  }
38 
39 #define VQABS_IMPL(stype, vtype, prefix, postfix) \
40  inline vtype vqabs(const vtype &a) \
41  { \
42  return prefix##_##postfix(a); \
43  }
44 
45 // Absolute: vabs{q}_<type>. Vd[i] = |Va[i]|
46 VABS_IMPL(int8x8_t, int8x8_t, vabs, s8)
47 VABS_IMPL(int16x4_t, int16x4_t, vabs, s16)
48 VABS_IMPL(int32x2_t, int32x2_t, vabs, s32)
49 VABS_IMPL(float32x2_t, float32x2_t, vabs, f32)
50 #ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
51 VABS_IMPL(float16x4_t, float16x4_t, vabs, f16)
52 #endif // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
53 
54 VABS_IMPL(int8x16_t, int8x16_t, vabsq, s8)
55 VABS_IMPL(int16x8_t, int16x8_t, vabsq, s16)
56 VABS_IMPL(int32x4_t, int32x4_t, vabsq, s32)
57 VABS_IMPL(float32x4_t, float32x4_t, vabsq, f32)
58 #ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
59 VABS_IMPL(float16x8_t, float16x8_t, vabsq, f16)
60 #endif // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
61 
62 // Saturating absolute: vqabs{q}_<type>. Vd[i] = sat(|Va[i]|)
63 VQABS_IMPL(int8x8_t, int8x8_t, vqabs, s8)
64 VQABS_IMPL(int16x4_t, int16x4_t, vqabs, s16)
65 VQABS_IMPL(int32x2_t, int32x2_t, vqabs, s32)
66 
67 VQABS_IMPL(int8x16_t, int8x16_t, vqabsq, s8)
68 VQABS_IMPL(int16x8_t, int16x8_t, vqabsq, s16)
69 VQABS_IMPL(int32x4_t, int32x4_t, vqabsq, s32)
70 
71 #undef VABS_IMPL
72 #undef VQABS_IMPL
73 } // namespace wrapper
74 } // namespace arm_compute
75 #endif /* ARM_COMPUTE_WRAPPER_ABS_H */
#define VQABS_IMPL(stype, vtype, prefix, postfix)
Definition: abs.h:39
int8x8_t vabs(const int8x8_t &a)
Definition: abs.h:46
#define VABS_IMPL(stype, vtype, prefix, postfix)
Definition: abs.h:33
Copyright (c) 2017-2021 Arm Limited.
int8x8_t vqabs(const int8x8_t &a)
Definition: abs.h:63