1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/*
* Copyright (c) 2017-2020, 2023 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 "arm_compute/core/Rounding.h"
namespace arm_compute
{
template <RoundingPolicy round_policy>
inline qasymm8x16_t vmlaq_qasymm8(qasymm8x16_t vd, float32x4_t vs, float32x4_t vo)
{
// Convert uint8 vectors to uint16 vectors
const uint8x8_t vd_low = vget_low_u8(vd);
const uint8x8_t vd_high = vget_high_u8(vd);
uint16x8_t vd_low_u16x8 = vmovl_u8(vd_low);
uint16x8_t vd_high_u16x8 = vmovl_u8(vd_high);
// Convert uint16 vectors to uint32 vectors
uint32x4_t A_u32x4 = vmovl_u16(vget_low_u16(vd_low_u16x8));
uint32x4_t B_u32x4 = vmovl_u16(vget_high_u16(vd_low_u16x8));
uint32x4_t C_u32x4 = vmovl_u16(vget_low_u16(vd_high_u16x8));
uint32x4_t D_u32x4 = vmovl_u16(vget_high_u16(vd_high_u16x8));
// Convert uint32 vectors to float32 vectors
float32x4_t A_f32x4 = vcvtq_f32_u32(A_u32x4);
float32x4_t B_f32x4 = vcvtq_f32_u32(B_u32x4);
float32x4_t C_f32x4 = vcvtq_f32_u32(C_u32x4);
float32x4_t D_f32x4 = vcvtq_f32_u32(D_u32x4);
// vd = vd*vs + vo
A_f32x4 = vmlaq_f32(vo, A_f32x4, vs);
B_f32x4 = vmlaq_f32(vo, B_f32x4, vs);
C_f32x4 = vmlaq_f32(vo, C_f32x4, vs);
D_f32x4 = vmlaq_f32(vo, D_f32x4, vs);
// Convert float32 vectors to uint32 vectors
#if __aarch64__
if (round_policy == RoundingPolicy::TO_NEAREST_EVEN)
{
A_u32x4 = vcvtnq_u32_f32(A_f32x4);
B_u32x4 = vcvtnq_u32_f32(B_f32x4);
C_u32x4 = vcvtnq_u32_f32(C_f32x4);
D_u32x4 = vcvtnq_u32_f32(D_f32x4);
}
else if (round_policy == RoundingPolicy::TO_NEAREST_UP)
{
A_u32x4 = vcvtaq_u32_f32(A_f32x4);
B_u32x4 = vcvtaq_u32_f32(B_f32x4);
C_u32x4 = vcvtaq_u32_f32(C_f32x4);
D_u32x4 = vcvtaq_u32_f32(D_f32x4);
}
else
{
A_u32x4 = vcvtq_u32_f32(A_f32x4);
B_u32x4 = vcvtq_u32_f32(B_f32x4);
C_u32x4 = vcvtq_u32_f32(C_f32x4);
D_u32x4 = vcvtq_u32_f32(D_f32x4);
}
#else // #if __aarch64__
// rounding mode only supported in aarch64
A_u32x4 = vcvtq_u32_f32(A_f32x4);
B_u32x4 = vcvtq_u32_f32(B_f32x4);
C_u32x4 = vcvtq_u32_f32(C_f32x4);
D_u32x4 = vcvtq_u32_f32(D_f32x4);
#endif // #if __aarch64__
// Convert uint32 vectors to uint16 vectors (with saturation)
vd_low_u16x8 = vcombine_u16(vqmovn_u32(A_u32x4), vqmovn_u32(B_u32x4));
vd_high_u16x8 = vcombine_u16(vqmovn_u32(C_u32x4), vqmovn_u32(D_u32x4));
// convert uint16 vectors to uint8 vectors (with saturation)
return vcombine_u8(vqmovn_u16(vd_low_u16x8), vqmovn_u16(vd_high_u16x8));
}
template <RoundingPolicy round_policy>
inline qasymm8x16_signed_t vmlaq_qasymm8_signed(qasymm8x16_signed_t vd, float32x4_t vs, float32x4_t vo)
{
// Convert uint8 vectors to int16 vectors
const int8x8_t vd_low = vget_low_s8(vd);
const int8x8_t vd_high = vget_high_s8(vd);
int16x8_t vd_low_s16x8 = vmovl_s8(vd_low);
int16x8_t vd_high_s16x8 = vmovl_s8(vd_high);
// Convert int16 vectors to int32 vectors
int32x4_t A_s32x4 = vmovl_s16(vget_low_s16(vd_low_s16x8));
int32x4_t B_s32x4 = vmovl_s16(vget_high_s16(vd_low_s16x8));
int32x4_t C_s32x4 = vmovl_s16(vget_low_s16(vd_high_s16x8));
int32x4_t D_s32x4 = vmovl_s16(vget_high_s16(vd_high_s16x8));
// Convert int32 vectors to float32 vectors
float32x4_t A_f32x4 = vcvtq_f32_s32(A_s32x4);
float32x4_t B_f32x4 = vcvtq_f32_s32(B_s32x4);
float32x4_t C_f32x4 = vcvtq_f32_s32(C_s32x4);
float32x4_t D_f32x4 = vcvtq_f32_s32(D_s32x4);
// vd = vd*vs + vo
A_f32x4 = vmlaq_f32(vo, A_f32x4, vs);
B_f32x4 = vmlaq_f32(vo, B_f32x4, vs);
C_f32x4 = vmlaq_f32(vo, C_f32x4, vs);
D_f32x4 = vmlaq_f32(vo, D_f32x4, vs);
#if __aarch64__
if (round_policy == RoundingPolicy::TO_NEAREST_EVEN)
{
A_s32x4 = vcvtnq_s32_f32(A_f32x4);
B_s32x4 = vcvtnq_s32_f32(B_f32x4);
C_s32x4 = vcvtnq_s32_f32(C_f32x4);
D_s32x4 = vcvtnq_s32_f32(D_f32x4);
}
else if (round_policy == RoundingPolicy::TO_NEAREST_UP)
{
A_s32x4 = vcvtaq_s32_f32(A_f32x4);
B_s32x4 = vcvtaq_s32_f32(B_f32x4);
C_s32x4 = vcvtaq_s32_f32(C_f32x4);
D_s32x4 = vcvtaq_s32_f32(D_f32x4);
}
else
{
A_s32x4 = vcvtq_s32_f32(A_f32x4);
B_s32x4 = vcvtq_s32_f32(B_f32x4);
C_s32x4 = vcvtq_s32_f32(C_f32x4);
D_s32x4 = vcvtq_s32_f32(D_f32x4);
}
#else // #if __aarch64__
// rounding mode only supported in aarch64
A_s32x4 = vcvtq_s32_f32(A_f32x4);
B_s32x4 = vcvtq_s32_f32(B_f32x4);
C_s32x4 = vcvtq_s32_f32(C_f32x4);
D_s32x4 = vcvtq_s32_f32(D_f32x4);
#endif // #if __aarch64__
// Convert int32 vectors to int16 vectors (with saturation)
vd_low_s16x8 = vcombine_s16(vqmovn_s32(A_s32x4), vqmovn_s32(B_s32x4));
vd_high_s16x8 = vcombine_s16(vqmovn_s32(C_s32x4), vqmovn_s32(D_s32x4));
// convert int16 vectors to int8 vectors (with saturation)
return vcombine_s8(vqmovn_s16(vd_low_s16x8), vqmovn_s16(vd_high_s16x8));
}
} // namespace arm_compute
|
