1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-vaddc/neon.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2020 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9
10 #include <assert.h>
11
12 #include <arm_neon.h>
13
14 #include <xnnpack/vadd.h>
15
16
xnn_qu8_vaddc_minmax_ukernel__neon_ld64_x8(size_t n,const uint8_t * input_a,const uint8_t * input_b,uint8_t * output,const union xnn_qu8_add_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])17 void xnn_qu8_vaddc_minmax_ukernel__neon_ld64_x8(
18 size_t n,
19 const uint8_t* input_a,
20 const uint8_t* input_b,
21 uint8_t* output,
22 const union xnn_qu8_add_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
23 {
24 const uint8x8_t va_zero_point = vld1_dup_u8(¶ms->neon.a_zero_point);
25 const int32x4_t va_multiplier = vld1q_dup_s32(¶ms->neon.a_multiplier);
26 const int32x4_t vright_shift = vld1q_dup_s32(¶ms->neon.right_shift);
27 const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->neon.output_zero_point);
28 const uint8x8_t voutput_min = vld1_dup_u8(¶ms->neon.output_min);
29 const uint8x8_t voutput_max = vld1_dup_u8(¶ms->neon.output_max);
30
31 const int32_t vxb = (int32_t) *input_b - (int32_t) params->neon.b_zero_point;
32 const int32_t vb = params->neon.b_multiplier;
33 const int32x4_t vbias = vdupq_n_s32(vxb * vb);
34
35 for (; n >= 8 * sizeof(uint8_t); n -= 8 * sizeof(uint8_t)) {
36 const uint8x8_t va01234567 = vld1_u8(input_a); input_a += 8;
37
38 const int16x8_t vxa01234567 = vreinterpretq_s16_u16(vsubl_u8(va01234567, va_zero_point));
39
40 int32x4_t vacc0123 = vmlaq_s32(vbias, vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
41 int32x4_t vacc4567 = vmlaq_s32(vbias, vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
42
43 vacc0123 = vrshlq_s32(vacc0123, vright_shift);
44 vacc4567 = vrshlq_s32(vacc4567, vright_shift);
45
46 const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
47
48 uint8x8_t vout01234567 = vqmovun_s16(vacc01234567);
49
50 vout01234567 = vmax_u8(vout01234567, voutput_min);
51
52 vout01234567 = vmin_u8(vout01234567, voutput_max);
53
54 vst1_u8(output, vout01234567); output += 8;
55 }
56 if XNN_UNLIKELY(n != 0) {
57 {
58 const uint8x8_t va01234567 = vld1_u8(input_a);
59
60 const int16x8_t vxa01234567 = vreinterpretq_s16_u16(vsubl_u8(va01234567, va_zero_point));
61
62 int32x4_t vacc0123 = vmlaq_s32(vbias, vmovl_s16(vget_low_s16(vxa01234567)), va_multiplier);
63 int32x4_t vacc4567 = vmlaq_s32(vbias, vmovl_s16(vget_high_s16(vxa01234567)), va_multiplier);
64
65 vacc0123 = vrshlq_s32(vacc0123, vright_shift);
66 vacc4567 = vrshlq_s32(vacc4567, vright_shift);
67
68 const int16x8_t vacc01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0123), vqmovn_s32(vacc4567)), voutput_zero_point);
69
70 uint8x8_t vout01234567 = vqmovun_s16(vacc01234567);
71 vout01234567 = vmax_u8(vout01234567, voutput_min);
72 vout01234567 = vmin_u8(vout01234567, voutput_max);
73
74 if (n & (4 * sizeof(uint8_t))) {
75 vst1_lane_u32((void*) output, vreinterpret_u32_u8(vout01234567), 0); output += 4;
76 vout01234567 = vext_u8(vout01234567, vout01234567, 4);
77 }
78 if (n & (2 * sizeof(uint8_t))) {
79 vst1_lane_u16((void*) output, vreinterpret_u16_u8(vout01234567), 0); output += 2;
80 vout01234567 = vext_u8(vout01234567, vout01234567, 2);
81 }
82 if (n & (1 * sizeof(uint8_t))) {
83 vst1_lane_u8(output, vout01234567, 0);
84 }
85 }
86 }
87 }
88